CHAS. G. ALLEN CO. BARRE, MASS. DRILLING AND TAPPING MACHINE. Allen No. 2 single spindle 12" overhang, Type

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Walter Hodges
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No.2 V-BELT MOTOR DRIVE DRILLING AND TAPPING MACHINE Allen No. 2 single spindle 12" overhang, Type VMT, hand feed drilling machine with controls for semi-automatic reversing motor tapping.

1 No.2 V-BELT MOTOR DRIVE DRILLING AND TAPPING MACHINE Allen No. 2 single spindle 12" overhang, Type VMT, hand feed drilling machine with controls for semi-automatic reversing motor tapping. Machine equipped with magnetic starter and push button station. Allen No. 2 single spindle 12" overhang, Type VPF, hand or power feed drilling machine with motor driven coolant system. Machine equipped with magnetic starter and push button station. Figure 1 Figure 2 CHAS. G. ALLEN CO. BARRE, MASS.

- Allen No. 2 four-spindle 12" overhang, Type VB, hand feed drilling machine with motor driven coolant system. Machine equipped with magnetic starter and push button station on each spindle.

2 - Allen No. 2 four-spindle 12" overhang, Type VB, hand feed drilling machine with motor driven coolant system. Machine equipped with magnetic starter and push button station on each spindle. Figure 3 The Allen No. 2 V-belt Vertical Motor Drive drilling and tapping machines are suitable for production drilling and tapping operations up to %" in steel and within the capacity of No. 2 Morse Taper spindle construction, where frequent speed changes are not required. Either two-rope single speed drive (Fig. 9) or single rope four-speed drive with four step sheaves can be furnished. Standard single speed ball bearing AC motors, either or 1800 RPM are used according to speed range desired. Allen No. 2 V-belt vertical motor drive machines are available in 8" -12, or 15, overhang, one to six spindles. They may be arranged for hand feed, power feed, cam feed and reversing spindle tapping, with or without lead screw. POWER FEED as applied to Allen No. 2 drilling machines has several unusual features. Standard feeds are and.010" per revolution of the spindle. A finer or coarser series of feeds can be furnished instead of standard.

Rear view of Allen No. 2 four-spindle 12" overhang, Type VB, drilling machine showing motor driven coolant system and individual magnetic starters.

3 Rear view of Allen No. 2 four-spindle 12" overhang, Type VB, drilling machine showing motor driven coolant system and individual magnetic starters. Figure 4 Feeds are selected merely by turning the knurled feed selector dial on the feed change gear box (Fig. 1 and Fig. 7). Feeds are positive and the feed mechanism is protected by a safety shear pin. Feed engagement is thru a toggle friction that is self adjusting for wear. Light pressure on the hand feed lever engages the feed, advances the spindle ahead of the feed if desired and disengages the feed under cut at will. A graduated adjustable stop disengages the feed automatically at desired depth, and spindle returns to starting point. CAM FEED provides, for production jobs, an automatic feed cycle with definite characteristics such as pull-outs for deep hole drilling or dwell for spotfacing and counterboring operations. Each cam cycle is started by a mushroom type momentary contact push button, or by a limit switch on indexing set ups (Fig. 8).

4 ALLEN Allen No. 2 single spindle 12" overhang, Type VTH, hand feed drilling machine equipped for hand controlled reversing spindle tapping (mechanical reverse- non-reversing motor); equipment includes motor driven coolant system and magnetic starter with push button station. Cut shows lead screw unit installed. Reversing Spindle Tapping-Mechanical Reverse MECHANICAL REVERSE, with non-reversing motor, uses a powerful double cone friction that operates without shock. Two distinct types of controls are available. "Semi-Automatic" provides automatic reversal of the spindle by means of an adjustable stop; (Fig. 6). "Hand Controlled" provides forward and reverse control to the spindle by downward and upward pressure on the hand feed lever, with adjustable stop for full depth; (Fig. 5). Lead screw tapping may be performed with semi-automatic- mechanical reverse (Fig. 9) or with hand controlled- mechanical reverse (Fig. 5) by installing lead screw unit consisting of hardened and ground thread lead screw with bronze nut and bracket. Page four

- Allen No. 2 single spindle 8" overhang, Type VT, hand feed drilling machine arranged for semi-automatic reversing spindle tapping (mechanical reverse - non-reversing motor).

5 - Allen No. 2 single spindle 8" overhang, Type VT, hand feed drilling machine arranged for semi-automatic reversing spindle tapping (mechanical reverse - non-reversing motor). Cut shows T-slot in table and magnetic starter with push button station. Figure 6 Reversing Spindle Tapping-Reversing Motor REVERSING MOTOR TAPPING uses a reversing motor with reversing magnetic contactor and limit switch. Two distinct types of controls are available- "Semi-automatic" provides automatic reversal of the motor and spindle by means of an adjustable stop; provision is made for operating reversing limit switches, when desired, before full depth is reached; (Fig. 2). "Hand Controlled" provides forward and reverse motion to the motor and spindle by downward and upward pressure on the feed lever. Neither Lead Screw Tapping or Power Feed can be furnished with "Hand Controlled" reversing motor controls. Page five

6 ALLEN Allen No. 2 two-spindle 12" overhang drilling and tapping machine with one Type VPF hand or power feed drilling top column and one Type VMT reversing motor semiautomatic lead screw tapping top column. Cut shows motor furnished with flange for plugging relay on lead screw tapping top column. Equipped with motor driven coolant system, also separate ma!gnetic starter and push button for each spindle. Reversing Motor lead screw tapping may be semi-automatic or automatic. A semi-automatic lead screw tapping cycle consists of forward motion, reverse and stop. Cycle is started by pressing mushroom type momentary contact push button (Fig. 7) or by a limit switch on indexing set ups. Automatic lead screw tapping provides continuous "Tap 11 and "Reverse// cycles, tap travel being determined by adjustable stops. If "automatic// controls are furnished, the spindle may be used also for "Semi-automatic// tapping, with or without lead screw, also for hand feed drilling operations. Controls for "Semi-automatic// or "Automatic// lead screw tapping include plugging relay, generally mounted on motor, and suitable contactor panel (Fig. 7). The lead screw unit consists of a hardened and ground thread lead screw, with bronze nut and bracket. Page six

7 ALLEN Allen No. 2 two-spindle 8" overhang, Type VCF, cam feed drilling machine, motor driven coolant system and table wear plate. Machine equipped with combination magnetic starter and fusible disconnect switch, with push button station on each spindle. Motor driven coolant system can be furnished on any machine. A tank with large settling and storage compartments is mounted on the base of the machine and is provided with a removable cover for cleaning or refilling. A separate switch with overload protection is provided for the pump motor. Other extra equipment available includes table wear plates, standard T-slot in table, table end supports, built-in work lights, flanged quills for multiple heads, top column raising blocks, special cabinet beds for one or more spindles, multiple heads, index tables, etc., for production set ups. Proposals submitted on request. Page seven

Allen No. 2 two-spindle 12" overhang, Type VT, reversing spindle semi-automatic lead screw tapping machine (mechanical reverse--non-reversing motor).

8 Allen No. 2 two-spindle 12" overhang, Type VT, reversing spindle semi-automatic lead screw tapping machine (mechanical reverse--non-reversing motor). Machine equipped with table wear plate, top column raising blocks, motor driven coolant system, combination magnetic starter and fusible disconnect switch with push button station for each spindle. Cut shows two-rope single speed V-belt vertical motor drive. *Shows operating handle to start tapping cycle. l GENERAL SPECIFICATIONS No. 2 V -BELT VERTICAL MOTOR DRIVE ----~=--====~========================~ Number of Table Working Surface t Net Weight ~ Spindles 8" 12" 15" 8" 12" 15" l 20x14 26x21 34x x 14 26x21 34x2! x14 46x21 54x x 14 56x21 62x x14 66x21 74x xl4 81x21 87x on 3 * 46xl4 46x21 54x on 5* 66x14 66x21 74x =---=-=~=====-=--=--=-=-=---==-=-== Spindle diameter at drive... 1" Spindle nose diameter..... l 7 3 Morse Taper ''' No. 2" 2 Sliding head traverse**... 6" Spindle traverse in sliding head! " Table movement on column.. l 6" Center to center of spindles 12 72" On machines marked with * " Spindle to table (maximum) t 26" ----= ~- - -====---= ~ *No. 3 Morse Taper is standard in all Tappers **Dimension is 4" and t dimension is 24" on cam feeds and on mechanical reversing tappers. t Dimension is 5" on all power feed machines. On all cam feed machines the t dimension is determined by cam which is always special- 3 % " maximum 8" overh ang, S)i" maximum 12" overhang, and 5%" maximum 15'' overhang machines. foverall length of tables 7" greater than length of working surface. *Number of Spindles 2 on 3 and 3 on 5 indicates 2 spindles on 3-spindle column and 3 spindles on 5-spindle column, and may be referred to as No. 23 and No. 35 Machines respectively. ~ f Approximate weight of Hand Feed Machine; addition of Power Feed, Tapper, Wear Plate, Coolant System, Motor and Control, Crating, etc., will increase weight given. Standard T-Slot is for %" Bolts,!ocated approximately under center of spindles. Price for T-Slot includes two special %" x " bolts for each spindle. Spindle Speeds Four step sheave drive provides four spindle speeds in one of nine series for miscellaneous drilling and tapping Two rope single speed drive provides one spindle speed for production drilling and tapping, within following limits 900 R.P.M. Motor 1200 R.P.M. Motor 1800 R.P.M. Motor Minimum Maximum Minimum Maximum Minimum Maximum BOO 2400 Four Step Sheave Drive Two:Rope Single Speed Drive Page eight Form 147 Printed in U.S.A.

Rush Machinery, Inc. Specification- Model 252 series Drill & Tool Grinders

Rush Machinery, Inc. Specification- Model 252 series Drill & Tool Grinders I. Operational Features A. Drill & Tool Size Capacities 1. Drill Diameter Range: 3/32 (2.5 mm) to 2 (51 mm) 2. Tool Shanks: Straight Shanks: 3/32 (2.5mm) to 2 (51mm) diameter Morse Taper Shanks: to #5