Oct. 12, ,603,025 METHOD OF MOLDING GLASS AND APPARATUS THEREFOR / Z/S / %, WSá. //7, A. Žs. 2NNNN Ci/L. Z/LKK, SS Illizé S.

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1 Oct. 12, ,603,025 I. M. CLARKE METHOD OF MOLDING GLASS AND APPARATUS THEREFOR Filed June 7, Sheets-Sheet l E s / SN () / Z/S WSS / / %, / //7, A. Žs Nf3W.A/ WAA 33 7 Z WSá NNNN 2. f Ci/L. Z/LKK, SS 3-72 Illizé S. a T. S. s 3. S. 2(zii V. N V. 2N f M 1. ill's \ NVENTOR: , 1 4%% N 2:22, Ss===== AORNEYS.

2 Oct. 12, ,603,025 I. M. CARKE METHOD OF MOLDING GLASS AND APPARATUS THEREFOR Filed June 7, Sheets-Sheet 2 a - a - INVENTOR: ezzzazz, AT TORNEYs.

5 25 35 43 0 Patiented Oct. 12, 1928. UNITED STATES 1603,025 PATENT (OFFICE IRA. E. CLAIREE, OF NEW IARTINSVILLE, WEST VERGINIA, ASSIGNOR. To NEV7 IIAR TNTSVELLE GLASS RAFG. CO.

3 Patiented Oct. 12, UNITED STATES 1603,025 PATENT (OFFICE IRA. E. CLAIREE, OF NEW IARTINSVILLE, WEST VERGINIA, ASSIGNOR. To NEV7 IIAR TNTSVELLE GLASS RAFG. CO., OF NEW IARTINSWRLLE, WEST VERGINA, A COR PORATION OF WES' RGRA A33OD OF RioLDING GILASS AND APPARATUS THEEREFOR. My invention relates to a new and useful improvement in molding glass, and it re lates more particularly to a novel method of molding, as well as novel apparatus and mold construction for carrying out my novel method of molding. My invention relates more particularly to a noyel method and mold, for molding a glass bowl, having inwardly overhanging walls and an upwardly projecting substan tially hollow central member, molded inte grally with the bottom of the bowl; the upper wall of said central member being perforated. The particular object to be molded in this instance is a flower bowl having a curved wall extending upwardly and in wardly towards the center, and having a central flower supporting member molded integrally with the bottom of the Wall and projecting upwardly within the bowl, said flower supporting member having an up per perforated wall or disc, and having a hollow interconnecting chamber below said upper perforated wall or disc, and interme diate of said wall and the bottom of the bowl, interconnecting the several perfora tions in said upper wall of the flower sup porting member. With the above ends in view my inven tion consists of forming a glass bowl of the character stated, by first molding a bowl blank, including the central flower support ing member having the upper perforated wall or disc and the hollow intercommuni cating chamber intermediate said wall and the bottom of the bowl, with the walls of the bowl blank diverging however, from the bottom thereof in a direction opposite to the direction of the flower supporting member, and opposed to the direction of said walls in the finished bowl, so that the flower sup porting member is disposed without the bowl blank, instead of within the bowl, as in the finished product. My invention further consists in apply ing heat to the diverging walls of the bowl blank thus molded, while the same is suit ably supported, preferably by gripping the flower supporting member, and allowing the heated and plastic walls of the bowl blank to gravitate downwardly, and reshap ing them while in the plastic condition, un til said walls extend in the opposite di Application aled June 7, Serial No rection and thus enclose within them the flower supporting member. My invention further consists of novel press mold construction, whereby a bowl blank of this type, may be quickly molded. Thus a mold of my invention consists of a suitable base plate, having a central align ing and retaining flange, a joint mold hingedly mounted upon said base plate and preferably formed in quarters, for molding the outer circumference of the flower sup porting member; each of the quarters of said joint mold carrying a corresponding sec tion of a central core, whereby the inter communicating chamber beneath the flower supporting member is formed. The mold of my novel construction fur ther includes a series of spaced plugs ex tending through suitable apertures in the base plate, rigidly carried by a lower spring plate and having their upper ends termi nating in the core sections carried by the joint mold. - The mold of my novel construction fur ther includes a solid shell having upwardly and outwardly diverging conical walls, for molding the wall of the bowl blank and a suitable plunger adapted to descend down into said shell, for forming the thickness of said wall of the bowl blank as well as for shaping the bottom thereof. For the purpose of illustrating my inven tion, I show in the accompanying drawings, forms thereof which are at present preferred by me, since they will give in practice satis factory and reliable results, although it is to be understood that the various instrumen talities of which my invention consists can be variously arranged and organized and that my invention is not limited to the pre cise arrangement and organization of these instrumentalities as herein shown and de scribed. Figure 1 represents a vertical section of a mold of my novel construction. Figure 2 represents a horizontal section on line 2-2 of Figure 1. Figure 3 represents a similar vertical sec tion of molded bowl blank, after it is re moved from the mold, and prior to the re versal and reshaping of the wall thereof, 105 in a manner indicated in dotted lines in said figure. Figure 4 represents a perspective view of

0. 5 25 35 4) 50 60 85 1,608,025 the completed bowl, after the wall thereof (not shown in the drawings) is adapted to has been reversed and reshaped.

4 ) ,608,025 the completed bowl, after the wall thereof (not shown in the drawings) is adapted to has been reversed and reshaped. pass through the ring 33, fitting Snugly Referring to the drawings, in which like therein, and is provided with a lower con reference characters indicate like parts, 1 ical surface 37, which coacts with the corre designates the base plate of a mold of my sponding conical surface 31 of the mold shell novel construction, having a suitable circu 28, to form therebetween the conical wall 35, lar aligning flange 2 thereon, of a suitable of the bowl blank, of a suitable thickness. shape, and preferably having the inclined The lower terminal surface 38 of the press surfaces 3, whereby the joint mold members plunger 36, is in turn convexed downwardly, may be more perfectly secured and aligned. so as to produce the concaved bottom surface 75 Upon the base plate 1 is mounted the joint 39 on the bowl blank. A downwardly pro mold 4, formed in quarters, as shown in Fig jecting bead 40 is provided surrounding the ure 2 and adapted to mold the generally lower convexed terminal surface 38, and cylindrical flower supporting member 5, of merging into the conical wall surface 37 of the bowl 6 (Figure 4). said plunger, so as to form an annular de The joint mold 4 is formed in four quar pression 41, in the glass bowl blank between ter sections 7, 8, 9, and 10 respectively, each the concaved bottom surface 39, and the wall of the sections being hinged to the adjacent 35 of said bowl blank, and thus forming a section by the hinge bolts 11, 12 and 13 re corresponding annular basal bead 42, on the spectively, as shown particularly in Figures botton of the finished bowl and 2; and the sections 9 and 10 having A laterally and outwardly projecting an suitable means 14, for detachably securing nular bead 43 is also formed on the upper the two in the closed relation to each other, edge of the flower supporting member 5, by a in the position shown in Figure 2. corresponding annular groove or recess 4t, Thus, upon opening the joint mold 4, by formed partly in the base plate 1 and partly 90 the handles or lugs 14, the two sections 9 and in the joint mold 4. s 10 are first swung open, about the pivot bolts In order to provide a series of suitable 13 and 11 respectively, and finally the sec veltical apertures 45, in the upper wall Ol' tions 7 and 8 are swung outwardly about the disc 25, of the flower supporting member 5, common pivot bolt 12. for the reception of the stems of the flower The sections 7, 8, 9 and 10, carry corre to be contained and supported within the sponding laterally and inwardly projecting bowl, a series of plugs 46 are provided, rigid quarter sections or portions 15, 16, 17 and ly secured in a lower spring plate 47, and 18, of a central core 19, whereby the inter having upper reduced portions 48 extend 100 communicating chamber of the flower ing through suitable apertures 49 in the Supporting member 5 is formed. While the base plate 1, and having slightly tapered up core sections 15, 16, 17 and 18 are so propor per terminal portions 50, the upper ends of tioned as to form one complete core disc which are adapted to seat in a corresponding when closed, they are provided with arcuate and aligned series of recesses 51 in the core edges, formed about their corresponding sections 15, 16, 17 and 18, as shown in Fig pivot bolts as centers, so that when such core ures 1 and 2. sections 15, 16, 17 and 18 are withdrawn, to The spring plate 47 is guided on a plural gether with the corresponding joint mold ity of suitable guide rods 52, which are rigid sections, they will recede from the flower ly secured at their upper ends 53 in the base supporting member 5, so as to leave behind plate 1, and is urged downwardly with re interconnecting glass webs. 21, 22, 23 and 24, spect to the mold, by a corresponding plural intermediate the upper wall or disc 25 of the ity of helical compression springs 54, sur flower supporting member 5 and the bottom rounding said guide rods 52, and interposed wall 26 of the molded glass bowl blank between the base plate 1 and said Spring (shown in Figure 3). plate 47. ll 5 The joint mold 4 is provided with a suit In carrying out my novel method, the joint able circular recess 27, having a slightly di mold 4 is closed in, about the base plate 1, verging or inclined wall, in which is seated in a position shown in Figure 2, with the an upper solid mold shell 28, having a cor shell 28 and the ring 33 suitably positioned respondingly tapered or inclined lower outer thereon, and with the mold in a raised or circular portion 29, adapted to seat in said upper position with respect to the Spring recess 27, thereby properly and accurately plate 47, and hence with the plugs 46 in a to align the inner conical mold surfaces retracted position with respect to the mold. and 31 of the joint mold 4 and the solid mold In this condition, a gob of hot plastic glass, shell 28 respectively. The shell 28 is in turn of suitable amount, is dropped into the mold. 2; provided with an upper circular recess 32, Then the plunger 36, actuated by suitable in which is seated the upper ring 33, which press mechanism (not shown in the draw forms the terminal edge 34, of the wall 35, ings), is brought down through the ring 33, of the glass bowl blank. A press plunger onto the gob of plastic glass. The force 36, carried by suitable press mechanism, of the plunger 36 depresses the entire noid

O 15 25 35 40 45 55 60 66 1,608,025 structure, together with the base plate 1, glass in a.

5 O ,608,025 structure, together with the base plate 1, glass in a. plastic state around a central core thereby forcing the said base plate down and a series of spaced plugs at a right angle wardly towards the spring plate 47, and to said core, therewith forming an upper thereby causing the plugs 46 to project into frustrated conical wall and a lower cylin the mold, seating their upper terminals 50 drical member, withdrawing the series of in the corresponding recess 51 of the core spaced plugs thereby to leave behind a cor sections 15, 16, 17 and 18. responding series of upright apertures in The plunger 36 thus not only shapes the said cylindrical member, and withdrawing glass into the mold, but also causes the en the central core member at a right angle to trance into the mold of the tapered ends 50, the direction of withdrawal of the plugs, of the plugs 46, so as to form a correspond thereby to leave behind a central inner ing series of apertures or perforations 45, chamber common to and interconnecting the in the upper wall or disc 25, of the flower upright apertures. supporting member The method of molding a bowl of the Upon withdrawing the plunger 36, in an character stated, which consists in molding upward direction, the springs 54 raise the glass in a plastic state around central core mold structure into the upper position with and a series of spaced plugs at a right angle respect to the spring plate 47, and thus to said core, therewith forming an upper cause the tapered ends 50 of the plugs 46, frustrated conical wall and a lower cylin to be instantly retracted from the body of drical member, withdrawing the series of glass, leaving behind a corresponding series spaced plugs thereby to leave behind a cor of slightly tapered holes 45. The joint mold responding series of upright apertures in 4 is then opened up; the members 9 and 10 said cylindrical member, withdrawing the being opened first and the members 7 and 8 central core member at a right angle to the being subsequently swung open, thereby suc direction of withdrawal of the plugs, there cessively withdrawing, in a lateral direction, by to leave behind a central inner chamber the core sections 17 and 18, and 15 and 16 common to and interconnecting the upright respectively, and thereby leaving behind the apertures, removing the blank from the mold intercommunicating chamber, in the flower and lastly reversing the frustrated conical supporting member 5, intermediate of the wall while in a plastic condition, so as to dis upper wall or disc 25 and the bottom 26 of p ose the same in the opposite direction from the bowl. The ring 33 is then removed, and the direction in which it was molded, so as to the molded bowl blank. 55 (Figure 3) is then cause the same to surround said cylindrical removed in an upward direction from the member. solid mold shell In a mold of the character stated, a The bowl blank 5.5 thus molded, is then in base plate, a joint mold mounted upon said the shape shown in Figure 3 in solid lines. base plate, core sections carried by said joint In this condition it is grasped by suitable mold and extending inwardly to form a cen means at the member 5 thereof, and the tral hollow chamber, movable upright plugs frustrated conical wall 35 thereof is reheated extending through the base.plate and con until it becomes sufficiently plastic. In this necting with said core section, and means plastic condition of the wall 35, it is reversed, normally to retain said plugs in a retracted or turned inside out, and reshaped in the position. form indicated in dotted lines in Figure 3 5. In a mold of the character stated, a and shown more specifically in Figure 4, base plate, a joint mold mounted thereon, thereby enclosing the flower supporting a mold shell superimposed upon said joint member 5 within the bowl. mold and having suitable. means common Having thus described my invention, thereto and to said joint mold for interlock what I claim as new and desire to secure by ing the two in operative alignment with Letters Patent is:- each other, inner central core sections car 1. The method of molding a bowl of the ried by sections of said joint mold and hav character stated, which consists in molding ing lower opposed recesses for the reception a bowl blank having a frustrated conical of wall, a bottom wall and a hollow cylindrical able the upright upper terminals core plugs of extending core plugs, through mov member formed integral with the bottom the said base plate and having their terminals wall and extending in a direction opposite in operative alignment with said recesses in to the direction of the frustrated conical the core sections, yieldable means normally wall, applying heat to the frustrated conical to retain said plugs in a retracted position wall of said blank thereby plasticizing the - and an upright press plunger adapted to same and lastly reversing the conical wall project down into the mold shell to cooper while in a plastic condition so as to cause ate therewith to form a conical wall and said frustrated conical wall to surround said hollow cylindrical member. inner adapted operative to force position the movable simultaneously plugs into with an 2. The method of molding a bowl of the the molding operation. character stated, which consists in molding 6. In a mold of the character stated, a base O 1 125

6 plate, a spring plate positioned below the 1,608,025 low chamber within the cylindrical mold of same, means to guide said base plate in verti said joint mold, each of said core sections cal parallelism with respect to said spring having suitable spaced recesses in the lower plate, resilient means yieldably to retain said surfaces thereof, a series of spaced upright base plate in an upper position, a four sec core plugs carried by said spring plate and tion joint mold mounted upon said base plate extending through the base plate, in vertical having an inner cylindrical molding surface, alignment with the recesses in said core sec a molding shell superimposed upon said tions, and adapted to have their upper ter 25 joint mold and having means common to minals seated in said recesses when said it and said joint mold for locking the lat plugs are projected upwardly into the mold ter in operative alignment with the former, and an upper press plunger adapted to pro said shell having an inner upwardly di ject downwardly into the mold shell to vergent conical surface, an upper terminal form a conical molded glass wall in said so ring superimposed upon said shell, inward mold shell and to depress said mold thereby ly and laterally extending core sections to force the core plugs into an inner oper carried by each of the sections of said joint ative position within said mold. mold, adapted to form a single inner hol IRA. M. CLARKE.

Oct. 25, ,280,665. Filed April 8, ATToRNEYs H. BLOCK. 2 Sheets-Sheet NVENTOR HAROLD BLOCK TWEEZERS

Oct. 25, ,280,665. Filed April 8, ATToRNEYs H. BLOCK. 2 Sheets-Sheet NVENTOR HAROLD BLOCK TWEEZERS Oct. 25, 1966 Filed April 8, 1966 H. BLOCK 2 Sheets-Sheet NVENTOR HAROLD BLOCK ATToRNEYs Oct. 25, 1966 Filed April 8, 1966 H, BLOCK 2. Sheets-Sheet 2 ZZZZZZ Taseo (7 INVENTOR HAROLD BLOCK ATTORNEYS United