(12) United States Patent (10) Patent No.: US 8,353,095 B2

Transcription

1 US B2 (12) United State Patent (10) Patent No.: US 8,353,095 B2 Hall (45) Date of Patent: Jan. 15, 2013 (54) SELF FEEDING DRILL PRESS LATHE 12 A E. - K - etty ATTACHMENT 4,830,069 A 5/1989 Milyard 5, , 1994 Mak (76) Inventor: Jame W. Hall, Portland, OR (US) 5,562,135 A 10/1996 E. al. 5,586,382 12/1996 Ganem (*) Notice: Subject to any diclaimer, the term of thi 5,865,228 2f1999 Patteron patent i extended or adjuted under A.28 R. ick COC U.S.C. 154(b) by 1211 day. 6,915,726 B2 7/2005 Liao 7,377,022 B2* 5/2008 Hall... 29,560 (21) Appl. No.: 12/125,836 7,386,362 B1* 6/2008 Jackon et al.... TOOf , OO84348 A1 4/2005 Wu (22) Filed: May 22, 2008 OTHER PUBLICATIONS (65) Prior Publication Data Proecution Hitory, including all PTO correpondence and Appli cant' repone thereto. US 2008/ A1 Sep. 11, 2008 Search Report and Written Opinion from the International Searching O O Authority for PCT/US06/34321; 16 page. Related U.S. Application Data ShopSmith Mark V Woodworking Dream, (63) Continuation-in-part of application No. 1 1/228,072, com/markviite/index.htm, viited Jul 27, filed on Sep. 16, 2005, now Pat. No. 7,377,022. ShopSmith Mark V5-Tool-In-One, - markviite? 5 tool.htm, viited Jul. 27, (51) Int. Cl. (Continued) B23P 23/00 ( ) (52) U.S. Cl /560; 29/26 A; 29/27 A: 409/240; Primary Examiner Erica E Cadugan 82/132; 82/171; 144/46; 408/20: 74/27 (74) Attorney, Agent, or Firm J. Dougla Well (58) Field of Claification Search... 29/560, 29/27 R, 27 A, 27 C, 26 R, 26 A, 26 B: 82/171, (57) ABSTRACT 82/141, 132: 144/1.1, 46; 408/20, 22 23; The preent invention provide a elf feeding drill pre lathe 142/55, 1: 409/240, /27 attachment deigned for rotating a workpiece along a hori See application file for complete earch hitory. Zontal axi to remove material from the workpiece to form it (56) Reference Cited into a deired hape. The drill pre lathe attachment com prie a bae and a power tranfer box along with component U.S. PATENT DOCUMENTS commonly found on a lathe, but without a motor. The drill pre lathe attachment, or motorle lathe, may be mounted 2,089,362 A 8, 1937 HaaS directly to the bed of an exiting drill pre thereby providing 2,200,799 5, 1940 Miller 2,641,150 A 6/1953 Harry an alternative mean of achieving turning operation without 3,709,622 A 1/1973 More needing a traditional motor driven lathe. 3,828,834. A 8, 1974 More 4,161,974 A 7, 1979 Patteron 18 Claim, 12 Drawing Sheet 80 \ ar: A-33. 5,

2 US 8,353,095 B2 Page 2 OTHER PUBLICATIONS ShopSmith Mark V-Feature, feature.htm, viited Jul. 27, Mini-lathe Feature, lathe/fea ture/feature.htm, viited Jul. 27, Mini Lathe Introduction, lathe? Introduction/introduction.htm, viited Jul. 27, The Vertilathe Drill Pre Lathe, Hertilathe.html, viited Mar. 14, Drill Pre Lathe: Penn State Indutrie, com/merchang2/merchantmvc?screen+prod&store, viited Mar. 14, Inland Product Information for PowerKit BenchTop Lathe AddOnTM Kit, Plpklathe.htm, viited Mar. 14, Inland Product Information for PowerKit Main Frame and Power Unit, htm, Mar. 14, * cited by examiner

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14 U.S. Patent Jan. 15, 2013 Sheet 12 of 12 US 8,353,095 B2 Self Feeding Drill PreSS Lathe Attachment Having a TailStock Fig. 11 Self Feeding Drill PreSS Lathe Attachment Having a Carriage Aembly that Comprie a Tool Ret for Ue With a Handheld Wood Turning Tool Fig. 12

15 1. SELF FEEDING DRILL PRESS LATHE ATTACHMENT US 8,353,095 B2 CROSS-REFERENCE TO RELATED APPLICATIONS 5 Thi i a continuation-in-part of U.S. application Ser. No. 11/228,072, filed Sep. 16, 2005, now iued a U.S. Pat. No ,022, the pecification of which i incorporated herein by reference. 10 BACKGROUND OF THE INVENTION The technical field of invention relate to a lathe device. More particularly, the preent invention pertain to a drill 15 pre lathe attachment for rotating a workpiece along a hori Zontal axi to remove material from the workpiece to form it into a deired hape. On a woodworking lathe, the cutting tool are uually held by hand againt a tool ret and are moved inward and outward 20 perpendicular to the axi of rotation and alo back and forth along the axi of rotation to form a hape Such a a furniture leg. By contrat, on a metalworking lathe, the cutting tool are held rigidly in a tool holder that i mounted on a movable carriage. The cutting tool i moved inward and outward per- 25 pendicular to the axi of rotation and alo back and forth along the axi of rotation either by hand cranking carriage and leadcrew handwheel or under power from the lathe. Gen erally, material may be removed from the workpiece with greater preciion uing a metalworking lathe than i poible 30 uing a woodworking lathe. A typical lathe include a headtock and a tailtock di poed upon a horizontal bed allowing a workpiece to be placed between the two and upported at leat by a pindle projecting from the headtock and typically by the pindle a 35 well a a live center mounted on the tailtock. Typically, an electric motor, belt, and gear are houed in the headtock and provide rotational force to the pindle. The pindle rotate the workpiece along a horizontal axi, and the work piece may then be reduced (or turned) to the deired hape by 40 (hand or mechanical) application of the cutting tool. Preci ion i maintained by the axial alignment of the pindle and the preciion ground Surface (or way) upon which the tail tock (and carriage) lide back and forth along the axi of rotation. 45 It i common practice to ue a tandalone lathe for wood working and metalworking application. Likewie, a eparate and dedicated drill pre i typically ued for drilling and boring application, a eparate and dedicated table aw i ued for cutting operation, and o on. However, combination 50 or multi-purpoe tool are available in the marketplace which require le hop pace, potentially reduce overall equipment cot, or offer a deired utility in routine ituation. Thee combination tool tend to be more complex in tructure and require manipulation to reconfigure them from one function 55 to another. For example, U.S. Pat. No. 5,562,135 (1996) to Beth et al. dicloe a combination woodworking tool with the combined capabilitie of a drill pre, router, and wood working lathe. To ue thi tool a a lathe, the powerhead i vertically adjuted down to the horizontal bed while alo 60 rotatably adjuted for poitioning the pindle in a horizontal poition for cooperation with a eparately mounted lathe tail tock and tool ret. Another approach may be to convert a conventional drill pre into a lathe. For example, U.S. Pat. No. 6,102, (2000) to McCormick dicloe a drill pre modified for ue a a wood lathe uing a driving pur affixed to the chuck of the 2 drill pre for engaging one end of a wood workpiece. An adapter plate i affixed to the bed of the drill pre whereon a tailtock i attached for engagement with the oppoite end of the wood workpiece. And a tool ret i affixed to the adapter plate for ue with a haping tool. Operation of the reulting device involve rotating the workpiece along it vertical axi to remove material from the workpiece to form it into a deired hape. Thi non-traditional (vertical) orientation may be undeirable for a variety of lathe application. What i needed i a drill pre lathe attachment that retain the advantage and benefit of conventional woodworking and metalworking lathe while providing improved mobility, lower cot, implicity of ue, and o forth. What i needed, therefore, i a drill pre lathe attachment deigned for rotat ing a workpiece along a horizontal axi to remove material from the workpiece to form it into a deired hape. The foregoing and other objective, feature, and advan tage of the invention will be more readily undertood upon conideration of the following detailed decription of the invention taken in conjunction with the accompanying draw 1ngS. BRIEF DESCRIPTION OF THE SEVERAL DRAWINGS For a more complete undertanding of the preent inven tion, the drawing herein illutrate example of the invention. The drawing, however, do not limit the cope of the inven tion. Similar reference in the drawing indicate imilar ele ments. FIGS. 1a and 1b illutrate front and back view of a drill pre lathe attachment configured a a metalworking lathe, according to one embodiment of the invention. FIGS. 2a and 2b illutrate a drill pre lathe attachment configured for operation with a tandard drill pre, according to one embodiment of the invention. FIG. 3 illutrate a drill pre lathe attachment configured for operation with a tandard drill pre and uing an auxiliary workbench, according to one embodiment of the invention. FIG. 4 illutrate a cro-ectional view of a power tranfer box according to one embodiment of the invention. FIGS. 5a, 5b, and 5c illutrate exemplary input and output haft combination aociated with a power tranfer box, according to one embodiment of the invention. FIGS. 6a and 6b illutrate a drill pre lathe attachment configured a a woodworking lathe, according to one embodi ment of the invention. FIG. 7 illutrate a back view of a drill pre lathe attach ment configured a a metalworking lathe, according to one embodiment of the invention. FIG. 8 illutrate a elf feeding drill pre lathe attachment according to one embodiment of the invention. FIG. 9 illutrate a partial view (power tranfer box hou ing not hown) of a elf feeding drill pre lathe attachment according to one embodiment of the invention. FIG. 10 illutrate a partial back view (power tranfer box houing not hown) of a elf feeding drill pre lathe attach ment according to one embodiment of the invention. FIG. 11 chematically illutrate a elf feeding drill pre lathe attachment having a tailtock. FIG. 12 chematically illutrate a elf feeding drill pre lathe attachment having a carriage aembly that comprie a tool ret for ue with a handheld wood turning tool. DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS In the following detailed decription, numerou pecific detail are et forth in order to provide a thorough undertand

16 3 ing of the preent invention. However, thoe killed in the art will undertand that the preent invention may be practiced without thee pecific detail, that the preent invention i not limited to the depicted embodiment, and that the preent invention may be practiced in a variety of alternate embodi ment. In other intance, well known method, procedure, component, and ytem have not been decribed in detail. Variou operation will be decribed a multiple dicrete tep performed in turn in a manner that i helpful for under tanding the preent invention. However, the order of decrip tion hould not be contrued a to imply that thee operation are necearily performed in the order they are preented, nor even order dependent. In variou embodiment, the preent invention pertain to a drill pre lathe attachment that i attachable to an exiting drill pre. FIGS. 1a and 1b illutrate front 100 and back 105 view, repectively, of a drill pre lathe attachment config ured a a metalworking lathe, according to one embodiment of the invention. The drill pre lathe attachment generally include a bae 110 and a power tranfer box 115 along with component commonly found on a lathe, not including a motor. The power from the motor of the drill pre i tran mitted into the drill pre lathe attachment by clamping the input haft 120, which protrude out vertically from the top of the power tranfer box 115, with the chuck of the drill pre. A workpiece may be held in place by a 3-jaw type chuck 125 mounted on a pindle driven by the power tranfer box 115. A will be dicued below, other type of pindle attach ment may be ued to hold the workpiece. A hown in FIGS. 1a and 1b, the drill pre lathe attach ment may be configured a a metalworking lathe. In Such a configuration, the lathe typically include a tailtock 130 for holding the workpiece axially aligned oppoite the pindle and 125. The tailtock 130 may be lideably poitioned along a preciion ground way 135 uing a tailtock tightening nut 140. Once the tailtock 130 i roughly poitioned along the way 135, the workpiece (not hown) may be engaged between the chuck 125 and tailtock chuck 145 by tightening the workpiece within the chuck 125, moving the tailtock chuck 145 axially (horizontally) toward the pindle and chuck 125 uing the tailtock handwheel 150, and tightening the workpiece within the tailtock chuck 145. A carriage 155 may be provided for ue with a movable platform (compound) upon which a toolpot may then be mounted. The toolpot i a holding device mounted on the compound into which a cutting tool may be clamped. The carriage 155 generally comprie an upper portion ometime called a cro-lide 160 and a lower portion 165 lidably engaged with the way 135. The lower portion 165 of the carriage aembly 155 may be moved axially (horizontally) along the way 135 uing a leadcrew handwheel 170. The cro-lide 160 portion of the carriage aembly 155 may be moved perpendicular to the way 135 uing a carriage hand wheel 175. Uing both leadcrew handwheel 170 and carriage handwheel 175 allow the carriage aembly to be preciely poitioned. The cro-lide 160 typically incorporate a dove tail channel for lidably retaining it with the lower portion 165 of the carriage aembly 155. Variou technique may be ued for turning a workpiece uing a conventional lathe. Likewie, imilar technique may be ued with the drill pre lathe attachment decribed herein. For example, uing a drill pre lathe attachment a in FIGS. 1a and 1b, the workpiece may be held by the chuck 125 without having to engage the tailtock chuck 145 or without having the tailtock 130 fatened upon the way 135. An artian or craftperon i typically ued to forming and uing variou jig, aid, and other etup. The drill pre lathe US 8,353,095 B attachment decribed herein i deigned to function the ame a a tandard or conventional mini-lathe except for it reliance upon an exiting drill pre for providing the rotational force needed to rotate the pindle and, thu, the workpiece held thereon. The variou technique ued by craftperon to fully uti lize the capabilitie of a lathe cannot be fully decribed herein. Likewie, the technique available to craftperon uing a drill pre lathe attachment a dicloed herein cannot be fully decribed in thi dicloure and are limited only by the kill of the particular craftperon uing the device. A mentioned, the invention decribed herein provide the func tionality of conventional lathe with the benefit (ize, mobil ity, cot, flexibility, and o on) inherent in it deign to work cooperatively with an exiting drill pre. Although a drill pre lathe attachment a hown in FIGS. 1a and 1b may vary widely in ize, proportion, and dimen ion, the drill pre lathe attachment preferably coopera tively mate with a tandard floor tanding drill pre. In one embodiment, the drill pre lathe attachment may comprie a device with the imilar dimenion to mini-lathe available from equipment manufacturer. For example, the drill pre lathe attachment may have a Swing over bed dimenion of even inche, a ditance between center of twelve inche, a Swing over carriage of four inche, comprie a number three More Taper pindle, include a pindle through-hole diameter of three-quarter of an inch, and incorporate a number two More Taper in the tailtock. Thee pecification generally allow for the ue of tandard equipment available for ue with lathe. For intance, a three inch three-jaw type chuck (viu ally imilar and proportional to the chuck 125 hown in FIGS. 1a and 1b) may be ued with tandardized and commercially available pindle dimenion. Craftperon familiar with turning workpiece with lathe will readily undertand the above exemplary pecification. Neverthele, for the ake of clarity, the following definition are ued herein. Swing over bed refer to the diameter of the larget workpiece that can be rotated on the pindle without hitting the bed (or way 135). Seven inche i a common wing over bed pecification for a mini-lathe. However, a drill pre lathe attachment a dicloed herein may be configured to accommodate larger diameter or Smaller diameter work piece. Ditance between center refer to the longet workpiece that can be held between a center in the headtock and a center in the tailtock. A center in the headtock may comprie a three-jaw type chuck in the pindle or ome other pindle configuration. A center in the tailtock may comprie an adjutable tailtock chuck (a with tailtock chuck 145 depicted in FIG. 1a) or a dead center or a live center or ome other center for ue with a tandard lathe tailtock. Twelve inche i a common ditance between center pecification for a mini-lathe. A drill pre lathe attachment a dicloed herein, however, may be configured with a longer or horter ditance between center. Swing over the carriage refer to the diameter of the larget workpiece that can rotate over the carriage without hitting it. Thi dimenion i typically four inche for a lathe with a even inch wing over bed dimenion. A with the aforementioned dimenion, thi dimenion may vary for a drill pre lathe attachment a decribed herein. Variou carriage aembly component may be ued that may affect the available Swing over the carriage dimenion. Diameter of pindle through-hole refer to the diameter of the hold that pae through the pindle. The pindle may not incorporate a through-hole. However, if the pindle doe incorporate Such a through-hole, longer workpiece that have

17 5 a diameter le than the diameter of the pindle through-hole can pa through the pindle o that the free end of the work piece may be worked (a, for example, in a facing operation on a piece of metal bar tock). FIGS. 2a and 2b illutrate a drill pre lathe attachment configured for operation with a tandard drill pre 200, according to one embodiment of the invention. The power from the motor 210 of the drill pre 200 i tranmitted into the drill pre lathe attachment by clamping the input haft a hown in FIG.2b. FIG.2b illutrate the drill pre chuck 220 clamping onto the input haft 120 which protrude out verti cally from the top of the power tranfer box 115. FIG. 2a further illutrate how a drill pre lathe attach ment 230 may be affixed to and upported by the drill pre bed 240 of a tandard floor tanding drill pre uch a drill pre 200. The drill pre lathe attachment 230 may be ecured to the drill pre bed 240 uing any of a wide variety of method. Mot drill pre bed include lot for fatening jig, aid, or other fixture commonly ued by craftperon and thoe killed in the ue of uch drill pre equipment. The bae of the drill pre lathe attachment 230 may incorporate tapped hole to receive bolt to ecurely attach the drill pre lathe attachment 230 to the drill pre bed 240. To further tabilize the drill pre bed 240, a vertical Sup port member 250 may be added. The vertical upport member 250 may comprie any of a wide variety of material (i.e. metal tubing or pipe, wood 2"x4", etc.) and provide improved rigidity or tiffne to the drill pre with lathe attachment configuration. FIG. 3 illutrate a drill pre lathe attachment 230 config ured for operation with a tandard drill pre 200 and uing an auxiliary work bench 300, according to one embodiment of the invention. While the work bench 300 may provide addi tional Surface area for etting wrenche, cutting tool, work piece, bar tock, or other item which might be ueful to have in cloe proximity while operating the drill pre lathe attach ment 230, other mean of upport or other mean of providing work Surface may be ued. For intance, a imple aw hore arrangement might be ued to Support the drill pre lathe attachment 230 in place of the drill pre bed 240 or the work bench 300 if it i deirable not to utilize the drill pre bed 240 or for other reaon. The workbench 300 may alo be ued with longer verion of the drill pre lathe attachment 230. For example, a drill pre lathe attachment 230 with a larger ditance between center (to accommodate axially longer workpiece) may be ued. Depending upon the drill pre 200 ued (i.e. it ize, configuration, rigidity, and o on), a work bench 300 may provide additional upport for the drill pre lathe attachment 230 a well a other tool, workpiece item, and o forth. Next, FIG. 4 illutrate a cro-ectional view of a power tranfer box 115 according to one embodiment of the inven tion. Generally, the power tranfer box 115 comprie an input haft 120 with an input gear 400 at it oppoite (down ward) end. The input gear 400 mehe with another corre ponding output gear 410 that i poitioned horizontally on the output haft 420 and mounting platform 430 which form the pindle for the drill pre lathe attachment. The output haft 420 and mounting platform 430 comprie the pindle and the axial alignment for the way 135. A hown, the power tranfer box 115 allow the power to be tranmitted in and through the gear and redirected at a right angle. The input gear 400 and the output gear 410 may be of the ame or different diameter affecting the gear ratio. For example, the input gear 400 may be maller than the output gear 410 to allow for greater torque at the output haft 420 and pindle mounting platform 430. Additional gear may be US 8,353,095 B incorporated for peed (rpm) adjutment. However, in one embodiment, changing the peed (rpm) of the drill pre 200, and, thu, input haft 120, correpondingly change the peed (rpm) of the drill pre lathe attachment. Other detail of the power tranfer box 115, uch a cen terline locating pin 440, bearing, cover plate, and o on, are illutrated for exemplary purpoe. Certain feature. Such a the centerline locating pin 440, may be incorporated to improve the overall preciion of the lathe operation. However, Such detail are known for Such preciion lathe equipment and need not be decribed in further detail herein. Moving on, FIGS.5a, 5b, and5c illutrate exemplary input and output haft combination aociated with a power tran fer box, according to one embodiment of the invention. For example, the power tranfer box 115 may incorporate an output haft mounting platform 430 onto which a workpiece or other holding device may be affixed. One uch attach ment, a wood turning mounting plate 500, i hown in FIG. 5b. Another attachment, a metal turning holding chuck (or a three-jaw type chuck) 125, i hown in FIG.5c. Operation of Such pindle mounting plate attachment include fatening the attachment (uch a the three-jaw type chuck 125) to the mounting plate 430 perhap uing bolt with capture nut and then appropriately holding workpiece (uch a by tightening the holdingjaw of the three-jaw type chuck 125). Thereafter, rotational force applied to the input haft 120 will turn the pindle mounting plate 430 and the workpiece held to it (in thi cae by the three-jaw type chuck 125 typically ued for metalworking application). Alo hown with FIGS. 5a, 5b, and 5c i an input haft coupler 510 which may be optionally ued to implify etting up a drill pre lathe attachment. For example, the input haft coupler 510 may be poitioned over the input haft 120 ub equent to placement of the drill pre lathe attachment upon the drill pre bed, whereafter the input haft coupler 510 may be lideably raied upward to engage with the drill pre chuck and thereby providing a coupling between the drill pre chuck and the power tranfer box 115. The input haft coupler 500 may be incorporated into the deign of the input haft 120 whereby engagement of the power tranfer box 115 with a drill pre chuck i accomplihed through engagement of the drill pre chuck with the input haft of the power tranfer box 115 having an integral coupler 510. A mentioned previouly, a drill pre lathe attachment a decribed herein may be configured a would a traditional woodworking or metalworking lathe. FIGS. 6a and 6b illu trate front 600 and back 605 view, repectively, of a drill pre lathe attachment configured a a woodworking lathe, according to one embodiment of the invention. A typical tool ret 620 i hown whereupon traditional handheld cutting tool may be held for removing material from a horizontally rotating workpiece to form it into a deired hape. The tool ret 620 may be repoitioned along the horizontal axi of rotation by moving the tool ret carriage 630 along the way between the pindle and tailtock. Other woodworking attachment, jig, fixture, or technique commonly ued with traditional woodworking lathe may alo be ued. Alo a mentioned previouly, many of the feature found on lathe may be incorporated with a drill pre lathe attach ment a decribed herein. Further, variou feature or attach ment may be repoitioned to better Suit the compact deign of the drill pre lathe attachment. For example, FIG. 7 illu trate a back view of a drill pre lathe attachment 700 con figured a a metalworking lathe, according to one embodi ment of the invention, howing the leadcrew 710 and the leadcrew handwheel 720 poitioned to the rear of the car riage aembly 155 a oppoed to the front ide (not hown).

18 7 Poitioning the leadcrew 710 rearward may enhance the operation of the drill pre attachment inofar a material removed from the workpiece may be le likely to accumulate on the leadcrew. Conequently, maintenance and cleanup may be improved by Such poitioning. FIGS illutrate variou view of a drill pre lathe attachment incorporating a elf feeding feature which pro vide operator electable controlled movement of the carriage horizontally along the way at a predetermined rate propor tional to the rotational peed of the input haft. Such a feature improve the veratility of the drill pre lathe attachment o that the attachment i ueful in a greater number of applica tion, epecially thoe application requiring an improved Surface finih or greater accuracy in term of cloer dimen ional izing and tolerance. Intead of cranking a hand wheel connected to the leadcrew in order to move the carriage aembly in a forward direction toward, for example, the three jaw chuck a hown, the carriage may be controllably moved along the way by electively engaging the elf feed ing feature via mechanical linkage between with the pindle (driven by the power tranfer box) and the leadcrew. A hown in FIG. 8, a elf feeding drill pre lathe attach ment 800, power may be tranmitted down to the leadcrew through peed reducing gearing to achieve a deired (prede termined) feed rate. By extending the horizontal output haft out and beyond the power tranfer box houing and adding a mall drive gear 810 fixed to the end of the output haft that i oppoite to the three jaw chuck hown, the firt tep in tran ferring rotational movement down to the lead crew i pro vided. To further tranfer rotational movement and alo provide a mean of diconnecting the drive when not required, a larger gear 820 i rotatably attached to a dovetail platform (or lide) 910 which can lide vertically to either allow the large gear 820 to meh with the mall gear 810 or not. The engagement of the large gear 820 and mall drive gear 810 i controlled, a hown in FIG.9, by moving a cam haped lever 860 either up (to engage the large gear 820 with the mall drive gear 810) or down (to diengage the large gear 820 from the Small drive gear 810). A mall pulley 850 i fixed to the large gear 820 to provide a further reduction of peed, and the tranfer of power will continue along through a cog belt 830 which i directly linked with a larger pulley 840. The larger pulley 840 i fixed to a free pinning hexagon haped haft 1010 which i, a hown in FIG. 10, in line with the lead crew A dog clutch 1020 i utilized to make a connection between the hexagon haft 1010 and the lead crew The dog clutch 1020 i in turn actuated by a cro haft that run perpendicular to the lead crew 1030 acro the width of the bottom ide of the power tranfer box houing (houing not hown in FIG. 10) and extend out the oppoite ide connect ing with a lever 870, which control engagement or feed by the operator while in operation. Alo hown in each of FIGS i a T lot piece itting atop the carriage, according to one embodiment. Thi 'T' lot fatened to the top of the carriage will accept tool uch a a clamp or chuck for drill or boring bar that have amating T bolt that ecurely clamp the tool to the top of the carriage, and thi T lot i preferably in center with the center of the headtock (i.e. the three-jaw chuck hown). A tailtock (a in FIG.7) may be attached to the elf feeding drill pre lathe attachment (a hown in FIGS. 8-10), the combination of which i chematically hown in FIG. 11, and Such tailtock generally ha at leat two different purpoe. Such tailtock not only act a a centerfor holding material on the center axi, it can alo hold drill, which i the firt tep in locating a concentric center in a piece of material (or work US 8,353,095 B piece). A problem i that a drill held by the tailtock i at the oppoite end of the carriage, and o the drill would then extend over the carriage, limiting how cloe it can come the workpiece. The extenion over the carriage decreae accu racy. Drilling from the other ide i generally le favorable ince the drill bittend to walk (i.e. not tay on center). By placing a chuck or holding tool on top of the carriage which ue a T bolt for clamping it down bring the cutting tool up cloe to the workpiece, which i held by the headtock, and allow more horizontal travel ditance along the way for drilling and other operation. According to a further embodiment, a elf-feeding drill pre lathe attachment including one or more linkage extending from the pindle for turning the workpiece, to provide electably controlled movement of the cutting tool horizontally along the way at a predetermined rate propor tional to the rotational peed of the input haft, may be pro vided with a carriage aembly lidably engaged with the way, wherein the cutting tool comprie a handheld wood turning tool and the carriage aembly comprie a tool ret for ue with the handheld wood turning tool, a chematically hown in FIG. 12. A decribed herein, a drill pre lathe attachment deigned for rotating a workpiece along a horizontal axi to remove material from the workpiece to form it into a deired hape i provided. The drill pre lathe attachment comprie a bae and a power tranfer box along with component commonly found on a lathe, but without a motor, and may incorporate linkage to provide a elf feeding feature. The drill pre lathe attachment, or motorle' lathe, may be mounted directly to the bed of an exiting drill pre thereby providing an alter native mean of achieving turning operation without needing a traditional motor driven lathe. The term and expreion which have been employed in the forgoing pecification are ued thereina term of decrip tion and not of limitation, and there i no intention in the ue of uch term and expreion of excluding equivalence of the feature hown and decribed or portion thereof, it being recognized that the cope of the invention i defined and limited only by the claim which follow. What i claimed i: 1. A drill pre lathe attachment for attachment to a drill pre and for turning a workpiece about a horizontal axi, aid drill pre lathe attachment compriing: a bae which may be ecurely fatened to a drill pre bed via mean for attaching the bae to the drill pre bed, aid bae having a way formed thereupon on which a cutting tool may be lideably poitioned; a power tranfer box at one end of aid bae, aid power tranfer box having an input haft linked by one or more gear to a pindle for turning the workpiece about the horizontal axi, aid input haft capable of engagement with a drill pre chuck and receiving rotational force therefrom So a to rotate about a vertical axi, aid one or more gear capable of tranmitting aid rotational force from aid input haft to aid pindle to thereby rotate aid pindle and the workpiece about aid horizontal axi; and one or more linkage extending from aid pindle to pro vide electably controlled movement of aid cutting tool horizontally along aid way at a predetermined rate proportional to the rotational peed of aid input haft. 2. The drill pre lathe attachment of claim 1, further com priing: a mounting plate formed upon aid pindle and capable of holding aid workpiece, aid mounting plate capable of receiving a wood turning mounting plate or a metal turning holding chuck.

19 9 3. The drill pre lathe attachment of claim 2, wherein aid metal holding chuck comprie a three-jaw type chuck. 4. The drill pre lathe attachment of claim 1, further com priing a tailtock lidable upon aid way, wherein the tail tock include mean for holding aid workpiece in rotational alignment with aid pindle. 5. The drill pre lathe attachment of claim 1, further com priing a carriage aembly lidably engaged with aid way, aid carriage aembly for holding the cutting tool, which cutting tool i poitioned for turning aid workpiece. 6. The drill pre lathe attachment of claim 5, wherein aid cutting tool comprie a metal turning tool and aid carriage aembly comprie: a lower portion lidably engaged with aid way and mov able along aid way by rotating a leadcrew, aid lead Screw being electably engaged with aid one or more linkage extending from aid pindle to provide aid electably controlled movement of aid cutting tool horizontally along aid way; and a cro-lide lidably retained with aid lower portion, aid cro-lide capable of liding in a direction perpendicu lar with aid leadcrew. 7. The drill pre lathe attachment of claim 1, further com priing a carriage aembly lidably engaged with aid way, wherein aid cutting tool comprie a handheld wood turning tool and aid carriage aembly comprie a tool ret for ue with aid handheld wood turning tool. 8. The drill pre lathe attachment of claim 1, further com priing: a carriage aembly lidably engaged with aid way, aid carriage aembly for holding the cutting tool, which i poitioned for turning aid workpiece; and wherein a tailtock i lidable upon aid way, aid tail tock including mean for holding aid workpiece in rotational alignment with aid pindle. 9. The drill pre lathe attachment of claim 1, wherein aid power tranfer box tranmit rotational force from aid drill pre chuck through a firt gear integral with aid input haft to a econd gear integral with aid pindle thereby redirecting aid rotational force from an axi of rotation aociated with aid drill pre chuck to aid horizontal axi of rotation ao ciated with aid pindle. 10. The drill pre lathe attachment of claim 9, wherein aid firt gear and aid econd gear redirect aid rotational force from a vertical axi of rotation to aid horizontal axi of rotation. 11. The drill pre lathe attachment of claim 1, further compriing a carriage aembly lidably engaged with aid way and movable along aid way by rotating a leadcrew, aid leadcrew being electably engaged with aid one or more linkage extending from aid pindle to provide aid electably controlled movement of aid cutting tool horizon tally along aid way. 12. A drill pre with drill pre lathe attachment for rotat ing a workpiece about a horizontal axi to remove material from the workpiece to form it into a deired hape, aid drill pre with drill pre lathe attachment compriing a drill pre having a column, a power ource mounted upon aid column, a drill pre chuck rotatably driven by aid power ource about an axi parallel to aid column, a drill pre bed attached to aid column, aid drill pre bed being adjutable along US 8,353,095 B aid column to vary a ditance between aid drill pre chuck and aid drill pre bed, and a drill pre lathe attachment compriing: a bae which may be ecurely fatened to aid drill pre bed via mean for attaching the bae to the drill pre bed, aid bae having a way formed thereupon on which a cutting tool may be lideably poitioned; a power tranfer box at one end of aid bae, aid power tranfer box having an input haft linked by one or more gear to a pindle for turning the workpiece about the horizontal axi, aid input haft capable of engagement with aid drill pre chuck and receiving rotational force therefrom So a to rotate about a vertical axi, aid one or more gear capable of tranmitting aid rotational force from aid input haft to aid pindle to thereby rotate aid pindle and the workpiece about aid hori Zontal axi; and one or more linkage extending from aid pindle to pro vide electably controlled movement of aid cutting tool horizontally along aid way at a predetermined rate proportional to the rotational peed of aid input haft. 13. The drill pre with drill pre lathe attachment of claim 12, further compriing: a mounting plate formed upon aid pindle and capable of holding aid workpiece, aid mounting plate capable of receiving a wood turning mounting plate or a metal turning holding chuck. 14. The drill pre with drill pre lathe attachment of claim 12, further compriing a tailtock lidable upon aid way, wherein the tailtock include mean for holding aid work piece in rotational alignment with aid pindle. 15. The drill pre with drill pre lathe attachment of claim 12, further compriing a carriage aembly lidably engaged with aid way, aid carriage aembly for holding the cutting tool, which cutting tool i poitioned for turning aid work p1ece. 16. The drill pre with drill pre lathe attachment of claim 15, wherein aid cutting tool comprie a metal turning tool and aid carriage aembly comprie: a lower portion lidably engaged with aid way and mov able along axially along aid way by rotating a lead Screw, aid leadcrew being electably engaged with aid one or more linkage extending from aid pindle to provide aid electably controlled movement of aid cutting tool horizontally along aid way; and a cro-lide lidably retained with aid lower portion, aid cro-lide capable of liding in a direction perpendicu lar with aid leadcrew. 17. The drill pre with drill pre lathe attachment of claim 12, further compriing a carriage aembly lidably engaged with aid way, wherein aid cutting tool comprie a hand held wood turning tool and aid carriage aembly comprie a tool ret for ue with aid handheld wood turning tool. 18. The drill pre with drill pre lathe attachment of claim 12, further compriing a carriage aembly lidably engaged with aid way and movable along aid way by rotating a leadcrew, aid leadcrew being electably engaged with aid one or more linkage extending from aid pindle to provide aid electably controlled movement of aid cutting tool hori Zontally along aid way. k k k k k