US2512811A - Glassworking apparatus - Google Patents

Description

June 27, 1950 c. A. scHucK GLAS SWORKING APPARATUS 4 Sheets- Sheet 1 Filed March 14, 1945 Imnentor Cfi/HELES ,4. Jcnuczc (Ittornegs June'27, 1950 c. A. scHucK GLASSWORKING APPARATUS Filed March 14, 1945 4 Sheets-Sheet 2 June 27, 1950 c. A. scHucK GLASSWORKING APPARATUS 4 SheetsSheet 3 Filed March 14, 1945 lhmentor SCHUCK CunleLEs A Gttomep June 27, 1950 c, sc uc 2,512,811

GLASSWORKING APPARATUS Filed March 14, 1945 4 Sheets-Sheet 4 All? su 1.x

' V I m ISmnentor l 1 /48 I. CI-IHEL f5 14. Jaw/0c Gttornegs Patented June 27, 1950 GLASSWORKING APPARATUS Charles A. Schuck, Corning, N. 17., assignor to Gaming Glass Works, Corning, N. Y., a corporation of New York Appiicati'on March 14, 1945, Serial No. 582,745

7 Claims. (01'. 49--5) The present invention relates to a glass working apparatus and particularly to a novel drive arrangement for synchronously operating a plurality of separate glass Working assemblies:

An object of the invention is a simple, compact efiicient and dependable drive for a plurality of working units.

Another object is a glass working machin of large production capacity compared to the floor space it requires.

Other objects :and features of the invention will become evident upon further perusal of the dis-' Closure.

In the accompanying drawings:

Fig. 1 is a plan view, with certain parts broken away and certain parts in section, of a machine embodying the invention;

Fig. 1a is an enlarged fragmentary view, partly in section, of the feeding trough arrangement for the machine;

Fig. 2 is a sectional elevation with certain parts broken away, taken generally along line 22 of Fig. 1;

Fig. 2a. is an enlarged sectional view taken on line 2 a--2a of Fig. 2 illustrating structural de-' tails of a mold and associated pressing mechanism;

Fig. 2b is an enlarged fragmentary detail of a plunger turret lifting device of the machine;

Fig. 2c is anenlar'ged sectional view taken on line 2c2c of Fig. 2;

Fig. 3 is a sectional plan view illustrating the table drive and locking arrangement for the machine;

Fig. 4 is :an enlarged sectional view taken on line 44 of Fig. 3';

Fig. 5 is a sectional view taken on line 5-=5 of Fig. 4; I

Fig. 6 is a side elevation partly in section of a fragment of the machine showing the conveyer drive arrangement;

Fig. 7 is a piping diagram for the machine;

Fig. 7a is an enlarged section-a1 view of a con' trol valve used on the machine; I

Fig. 7b is an enlarged sectional view of a pilot or line valve used on the machine.

General description The instant disclosure embodies the invention in a glass pressing assembly wherein three similar rotating table presses equipped with Geneva type driven elements or wheels 38 38' (Fig. 3) are grouped in liker'el'ati on about a central or main table drive shaft it. A drive roller 42" supported 2 between arms 4| of a single drive unit 26 (Figs. 2, 3, 4i and 5) carried by shaft 16 is succesively cooperative with drive channels d3 G3 of wheels 3B -38 of the respective presses to successively turn their mold tables 55 -55 (Fig. 7) about their supporting columns 22 ---22 as required to index their molds 55 6 at loading, pressing and unloading positions. The single drive unit 2 6 has associated therewith a locking cam 39 which looks two of the wheels 38 -38 against turning while the remaining wheel is being driven.

Each of the mold tables 55 55 (Fig. 7) has a three plunger pressing turret like turret of table 55 (Figs. 1 and 2) cooperative with a single pressing ram. like ram 91 Figs. 2 and 2a, associated with turret 85, turret 85 being so geared to the table that its pressing plungers are advanced in succession to a position under ram 91 (Figs. 2" and 2a).

Molds Mi -56 of the respective tables 55 -55 (Fig.- '7) are supplied in succession with glass charges sheared from a stream of glass from a forehearth outlet (not shown) aligned over a distributing member 8| (Figs. 1 and 2) carried at the top of the drive shaft I6 which successively brings member 8] into register with chutes leading to molds in the charging positions of the respective tables 55 -55 The operation of the shears (not shown) is under control of a pilot valve I32 (Figs. 1, 2, and 7) actuated by a three-lobe cam 130 carried by shaft 1 6. Operation of pressing rams 97 -9 E of the respective tables in proper sequence to efiect lowering of the rams is by means of control valves l25 -=l25 (Figs. 1 and '7) under influence of pilot valves l2l "l2l (Figs. 2 and '7) adapted to be operated in succession by a lobe 128 on the under side of the shear control cam liili. Valves l25 are actuated to effect raising Of the rams 9'I -8l by means of a cam lit having a single lobe 126 also carried by shaft it. On the sides of the tables opposite those at which pressing is done (Figs. 1., 2 and 7) shove-up units '82 82 (Figs. 1, 2 and 7) are provided to lift mold valves, such as valve 52 (Fig. 2a), to clear articles from the molds, whereupon blasts of air from nozzles l42 -l42 (Fig. 7) deliver the articles through a delivery trough such as EM (Fig. 1) onto a conveyor H5 (Fig.1) surrounding all three table presses. Spray guns Ia, 2a, to (Fig. 7) are associated with the" respective tables '35 -5 5 as required to direct lubricating and cooling sprays toward the respective pmngersst thereof (Fig. 20.) seen following their use :and-

ib; 2b and 3b are provided for similarly treating the molds 3 5 -56 and their valves such as 58 while at their unloading positions.

The raising and lowering movements of the shove-up units 82 B2 are under the influence of control valves -I35 I35 and their associated pilot valves I36 I3Ii and wil -I33 (Fig. '7), adapted to be actuated by cams I3I ---I3'I of the respective tables 55 55 The supplying of for rendering the spray guns Ia, 2a, 3a, and Ib, 2b and 3b effective is through valves I4I I4I which are also adapted. to be actuated by the table cams. The arrangement is such that operation of a shove-up unit of any table and of the associated spray guns is rendered effective during indexing movements of the remaining two tables.

The pilot valves I2'I -I2l l36 I36 I39 I39 and I4I I iI (Fig.7) are identical in form and accordingly a description of valve I36 (Fig. 7b) will sufiice. Valve I36 is of the ordinary poppet type comprising a housing I43 having inlet and outlet ports I48 and I49 with the passage therebetween normally closed by a valve element held on its seat by a spring I41 and adapted to be opened by engagement of its stem I46 with a cam or the like. Valves 'I2I I2'I and valves I3I5 I3l5 and I39 I39 have their outlet ports open to atmosphere, whereas the outlet ports of walves I4I I4 I serve as the air supply ports for spray guns Ia, Ib, 2a, 2b, 3a and 3b. The way in which valve I32 is employed depends, of course, on the type of shear control equipment associated therewith.

Valves I35 -I35 are alike and of conventional form. Referring particularly to Fig. 7a, valve I35 comprises a cylinder I50 containing a piston I38 of the balanced type and having an air inlet port I5I, pneumatic unit air supply ports I34 and .I34'. valve control ports I33 and I33, and the usual exhaust ports 1:. In this type of valve air is constantly supplied to port I5I and through miniature apertures I52 and I52 therein to the respective ends of cylinder I50 so that as long as the pilot valves connected to ports I33 and I33 remain closed, piston I38 remains in the position to which it has last moved. When this balance is temporarily destroyed by opening of :a, pilot valve associated with the opposite end of the control valve, the piston shifts to such opposite end of cylinder I58. The piston 138 in one position supplies operating air to one pneumatic unit via a passage therein, not shown, but in communication with passage I38 and inlet port I 5| and connects the other end of such unit to atmosphere via passages I34, I38" and one of the exhaust ports .11. With the piston I38 in its alternative position, air is supplied through port I34 to the unit and is exhausted from the unit through port I34 and valve passage I38 and the remaining exhaust port :1:.

For a more thorough description of a valve such as I35 see Goodrich Patent 2,267,236, granted December 23, 1941. Valves WE -I differ from valves 'I.35 I 35 only in that a pilot valve similar to valve I36 is incorporated in one end of the same structure. In other words, a valve'such as valves I25 I25 may be made by connecting port I33 or I33 of a valve, such as I35 direct to port I48 of a valve such as I 36 General structural and drive arrangement The machine for convenience of portability comprises a wheeled carriage II (Fig. 2) having a bed I'2 carrying a, base I3 provided with a centrally disposed hub I4 containing a bearing I5 serving the lower end of table drive shaft I6.

.4 symmetrically arranged with respect to hub I4 are similar housings such as 2| (Fig. 2) for the three fixed columns 22 22 (Figs. 1, 2 and 3) about which the wheels 38 -38 and their associated mold tables -435 rotate. Shaft I6, just above its bearing I5, has keyed thereto the table driving and locking unit 26 which has boltedthereto a worm wheel 21 in mesh with a drive worm'28 carried by a main drive shaft 29 continuously driven by a, motor 30 (Fig. i). As will be evident from an inspection of Fig. 3, roller 42 of drive unit 26 is adapted to successively travel in channels 43 43 of wheels 33 38 to successively drive them in step-by-step fashion while the semi-circular locking tooth 39 (Figs. 3, 4, and 5) is adapted to mesh with two of the semi-circular locking channels 40 -40 of wheels 38 -38 surrounding the shaft I6 while the remaining wheel is being driven. This is accomplished by providing the locking tooth 39 with a surface which extends through 240 of the circle surrounding shaft I5 formed jointly by one each of channels 4B 40 so that one of the wheels 38 -38 is locked against rotation until the trailing end of tooth 39 has passed clear of the first encountered half of one of such locking channels. This is illustrated in Fig. 3 where it will be observed the drive roller 42 is shown entering a drive channel 43 of the wheel 38 It will be evident from the foregoing that Wheels 38 -48 are positively locked against rotation while the remaining wheel 38 is being turned and further, because of the shown relationship of the drive channels 43 and 43 of the last driven wheel 38 and the next wheel 38 to be driven, that unlocking of wheel 38 only occurs concurrent with its being placed under control of the drive roller 4'2.

Table assemblies Each mold table is supported in accordance with the showing of table 55 which is supported on a flange 52 of a sleeve 33 arranged about its column 22 supported on a thrust bearing 23 (Fig. 2) resting on the column housing 2I. Flanged sleeve 33 near its lower end carries a ring gear 34 in mesh with a. spur gear 35 carri d by the shaft 86 of the plunger turret 85. As will be understood, each time wheel 38 is turned to index a difierent mold under ram an it turns turret as required to index a different plunger (Fig. 2a) under ram 91 The sleeve 33 also intermediate its ends has a flange 50 co-operative with a, cover 5I. Table 55 is, in the present illustration, equipped with block molds 56 although the structure may be readily modified to employ other types of molds. Each such mold is carried by an insert such as 51 (Figs. 2 and 2a) fitting into a suitable aperture in the table. If desired, other inserts may be substituted for insert 5'? as required to accommodate different size molds or the inserts may be dispensed with entirely if a large enough mold is used. Each mold is equipped with a valve 58 having a stem 59 fitted into a pusher 60 (Fig. 2) projecting through the underside of the table and adapted to be lifted by the push-up unit at the unloading position.

Mold temperature control As characteristic of each of the three table presses, a cavity 6i below each mold 55 (Fig. 2) is in communication with a bored out upper portion of the associated column 22 via a port 20 through the column wall which at its upper end is connected with a temperature controlling fluid supply pipe IT. A passage 62 is provided for each ward pressure of unit 88 mold cavity BI and is adapted to be brought into alignment with the ports '20 so that in any indexed position of the table each passage 62 is in alignment with a port entering a cavity BI. That of the ports 20 which is aligned adjacent a mold indexed at the loading position is blocked by a plug 64 (Figs. 2 and 20) attached to the lower end of a rod l4 projected down into the bore of column 22 Manually operable dampers I5 are also provided in passages 62 to individually regulate the amount of fluid supplied to the molds in accordance with their indexed positions. The molds shown do not require forced cooling or heating and therefore are not vented although fluid supplied to them can pass through the space 58 surrounding the valve 58 and thus cool the molds to a limited extent.

Mold Charging An upper bearing support 66 (Fig. 2) for shaft l It bridges the columns 22 -42 and has suspended therefrom a funnel such as 61 for each mold table 55 55 Each funnel 6'! is attached to a carrier 68 vertically slidable on posts 69 and 8t secured at their upper ends to support 68. Each carrier I53 is provided with a roller I9 which rides over a cam track II carried by shaft It. It will be understood therefore that the funnels such as 6'! are raised and lowered in succession as shaft I6 is rotated, being lowered into close proximity to molds 56 -56 to assure the charges being properly guided into the molds. Mold charges enter the funnels such as 61 through troughs such as 18 (Figs. 1a and 2) passing through suitable apertures in support 66 and arranged in alignment with elbows such as, H and the associated guide trough 1'! arranged on a plate 19 carried by posts such as 80 threaded into support 66. As previously stated, molds 56 -56 are charged with gobs of glass sheared from a stream flowing from a forehearth (not shown) Whose bottom outlet is aligned over the input end of the distributing trough 8| (Figs. 1 and 2) which delivers them into the respective guide troughs TI. The shearing of charges is accomplished in any conventional manner under control of the shear pilot valve I32 and, as illustrated in Fig. '7, cam I has shear control lobes I3I I3I so that during a single revolution of shaft I 9 not only is each table indexed as already described, but also three charges of glass are severed so that a mold of each table receives a charge.

Pressing The previously mentioned plunger turrent 85 (Figs. 1 and 2) and its tubular drive shaft 86 are carried by the drive rod 8'! of a pneumatic unit 88 mounted on a support 89 bridged between the nearby column 22 and a conveyer supporting column 90. Air is continuously supplied to the lower end of unit 93 to normally hold the turret 85 in the position in which it is shown. Each pressing plunger 95 (Figs. 1 and 20.) carried by turret 85 is surrounded by a mold. ring assembly 96 suspended from turret 85 by bolts 9| slidable in apertures therethrough. Lowering of a plunger 95 in alignment with a mold 56 and of the entire turret 85 is effected by the ram 91 which comprises the lower end of drive rod 98' of pneumatic unit 59 arranged on support 89, unit 99 being powerful enough to overcome the up- Ram 91 is surrounded by a flanged. ring IOI adapted to engage bolts 9|. as the ram lowered and to move mold 6.. ring 96- down under compression of a spring mi; The bottom end of ram 91 is tapered at 94 to fit a tapered cavity I00 in plunger 95 to assist in proper alignment of the parts during operation. Also thetaper 94 of ram 91 is a guard against damage of the parts should the turret be turned while the ram is still on a plunger 95.- The air continuously applied to the unit 88 of turret 85 raises it as soon as ram 91 restores. Obviously, it isvital that the turret 85 be raised prior to an indexing movement, as otherwise movement of the mold 56 in interfered with by association of a plunger 95 and mold ring 96 therewith. Accordingly,. the pneumatic unit 88 is notentirely depended upon for the raising of turret 85. In addition there is provided a shaft I05 (Figs. 1, -2, and 22)) having at one end an arm I96 (Fig. 227) connected by a link I06 to a turret lifting arm I 07 arranged under the lower end of a shaft Hi3 depending from turret drive gear 35. The other end of shaft I05 is provided with an arm I09 (Fig. 2) having on its free end a roller I Ill adapted to travel on a crown cam I. I I arranged to be rotated by shaft IS. The contour of cam III is such that upon the indexing movement of one table, the arm I99 of the table at which pressing last took place functions to turn its shaft I05 as required to cause its arm I Ill to raise its turret 85 if for any reason its respective pneumatic unit 88 -88 has failed to previously perform such function. I

The pneumatic units 99 99 (Fig. 7) which, through the medium of their rams 97 -91 lower their pressing plungers such as 95, are supplied with operating air through their control valves I25 I25 which, as previously mentioned, shift to supply air to lower their rams 97 -91 under the influence of their pilot valves [Ti -I21 (Figs. 2 and 7) which are so positioned as to be actuated in succession by cam lobe I28 which is adjustably arranged as at I23 on the under side of cam I311. The single lobe I28 of cam I26 (Figs. 2 and 7) is provided for controllingthe shifting of valves I25 I25 to a position to supply air to units 99 9'9 to raise their rams 91 -411 cam I26 being carried by a flanged collar I29 adjustably clamped at I29" to table drive shaft I6.

Unloading The mold valve shove-up units 82' -82 (Figs.- 2 and. 7) are moved up and down by air supplied to them through control valves I35 I35 Shifting of any Valve WE -Hi5 to supply air to raise its associated shove-up unit 92 -82 is under control of the pilot valve I35 -I 36 of. the next table to be indexed. For example, the shove-up control valve Hi5 associated with the table 55 (Fig; 7") is shifted to supply air to move its unit 82 up when the pilot valve I3'6 'of table: 55 is actuated. Actuation of the pilot valve I'Iiii is by means of table cams I31 Shifting. of any shove-up control valve I 35 I=3'5 to supply air to lower its associated shove-upunit' 82 82 is under control of the second following table to be indexed. By way of example (Fig; 7), the shifting of shove-up control valve I35 to supply air to move its unit 82 down occurs when the pilot valve I39 of the table- EE is actuated.

The conveyer H5 (Fig. 1) is driven by one of three sprocket wheels I It coupled to speed re duction unit I18 (Fig; 6) driven by a belt HIE! extending betweenv it and a pulley I20 on the end of the main drive shaft 29'. Ware delivered to conveyor-.1115 may be. removed: there'fronlr in"- desiredmanner, for example, as by sweeping it onto a straight line conveyer.

Lubrication For the purpose of lubricating and assisting in cooling the molds, valves and plungers, p y guns Ia, 2a, 3a, and lb, 21) and 3b (Fig. '7) are associated with tables 55 -55 as necessary to direct sprays towards molds 56 -46 while in their unloading positions and towards the plungers such as 95 which have been last employed. As previously mentioned, application of air to the spray guns is through valves adapted to be actuated by cams of the respective tables. For example, the guns 2a and 2b, associated with the table 52 are under control of a valve I4I associated with the table 55 Spraying of a mold, valve and plunger at table 55 accordingly occurs while the table 55 is indexing.

Operation As shown, the table 55 located at position 3 (Fig. 7) has just been indexed and, for the purpose of describing the sequence of operations, those occurring during the next one-third revolution of the main drive shaft It required to index the table 55 at position I will now be described. During this movement the lobe I28 on the under side of cam I30 engages and actuates the pilot valve I2! which is individual to the table 55 which causes the associated control valve i25 to shift and supply air to the upper end of unit 98 causing ram 91 of the table 55 to be lowered to press a charge previously deposited in the mold thereunder; shear pilot valve I32 is operated by the lobe I3I of cam I3!) to efiect the release of a charge of glass into the glass distributing member 8I which, in the newly adjusted position will deliver the charge into a mold of the table 55 just after the indexing movement has ceased; and the lobe I26 of cam I26 causes the control valve I25 to shift as required to supply air to its unit 99 to raise its ram 91 The indexing of the table 55 brings a previously charged mold under its pressing plunger, while its cams I3'I actuate the associated pilot valves I36 I39 and air supply valve I4I Pilot valve I36 causes control valve I35 to shift and supply air to raise its shove-up unit 82 whereupon the article which is raised clear of its mold by such operation is delivered to conveyer II by air issuing from the associated nozzle I42 as already mentioned. Actuation of pilot valve I39 causes the control valve I35 to shift to lower its shove-up unit 82 and air supply valve [M upon actuation feeds air to spray guns 2a and 2b associated with table 55 to direct lubricant against plunger and mold units thereof.

During the second one-third revolution of shaft I6 the table 55 is indexed. During this movement the lobe I28 on the under side of cam I30 engages and actuates pilot valve I21 associated control valve I25 being caused to shift and supply air to the upper end of unit 99 causing ram 91 to be lowered to press the charge previously deposited in the mold thereunder; shear pilot va1ve I32 is operated to efiect the release of a charge of glass into the glassdistributing member BI which, in the newly adjusted position will deliver the charge into a mold of the table 55 just after the indexing movement has ceased; and cam lobe I26 shifts control valve I25 causing it to supply air to its unit 99 to raise its ram 91 The indexing of table 55 brings a'previously charged mold under its pressing. plunger, while. its

cams I3I actuate'the associated pilot valves I36 and I39 and air supply valve I M Pilot valve I36 causes control valve I35 of table 55 to shift and supply air to raise its shove-up unit 82 whereupon the article which is raised clear of its mold by such operation is delivered to conveyer I I5 by air issuing from the associated nozzle I42 as already mentioned. Pilot va1ve I39 causes the control valve I35 to shift to lower its shove-up unit 82 and air supply va1ve H associated with the table at position 2 feeds air to spray guns 3a. and '32) associated with the table 55 to direct lubricant against plunger and mold units thereof.

As the revolution of shaft I6 is being completed, table 55 is indexed. During this movement the lobe I28 .on the underside of cam I30 engages and actuates that pilot va1ve I27 which is individual to table 55 which causes the associated control valve I25 to shift and supply air to the upper end of unit 99 causing ram 91 to be lowered to press the charge previously deposited in the mold thereunder; shear pilot valve I32 is operated to effect the release of a charge of glass into the glass distributing member which, in the newly adjusted position, will deliver the charge into a. mold of the table 55 just after the indexing movement has ceased; and the lobe I29 of cam I25 shifts control valve I25 as required to supply air to its unit 99 to raise its ram 97 The indexing of the table 55 brings a previously charged mold under its pressing plunger, while its cam I37 actuates the associated pilot valves I36 I39 and air supply valve Hi Pilot valve I36 causes control valve I35 to shift and supply air to raise its shove-up unit 82 whereupon the article which is raised clear of its mold by such operation is delivered to conveyer I I5 by air issuing from the associated nozzle M2 as will be clearly understood. Pilot valve I39 causes the control valve I35 to shift to lower its shove-up unit 82 and air supply valve I lI feeds air to spray guns Ia and lb to direct lubricant against plunger and mold units thereof.

Adjustabz'lity It is to be noted that with the glass charge distributing member ill in the angular position shown with respect to the table drive roller 42 a mold of the table at position 1 is charged substantially at the same time that a previously charged mold on the same table is being pressed, so that the time provided for the charge to settle is relatively long. This, however, need not be the case, since by merely shifting the position of the distributing member 8i the charge can be deposited in a mold of the table at position 2 or 3 while a charge mold of the table at position 1 is being pressed. Further variation of the time lapse between charging and pressing can be effected by shifting the position of shear pilot valve I32. Also, whereas in the present disclosure the position of the lobe I28 is such that pressing at any table occurs substantially as soon as the table has been brought to a stop, by shifting the position of lobe I28 on cam I30 the time of pressing can be changed. Similarly, by shifting cam I25, the time at which its lobe I26 operates the control valves I25 I 25 can be advanced or retarded to vary the period of dwell of a plunger-within a mold. As will be observed (Fig. 1), valves BB -I36 I39 I39 and I4I MI actuated by table cams I31 I3l' may also be shifted to modify the timing of the operations under their control to establishbest. operating conditions.

Although in the foregoing there has been shown and described the preferred embodiment of the invention, it is to be understood that minor changes in the details of construction and combination of parts may be resorted to without departing from the spirit and scope of the invention as claimed.

I claim:

1. In a glass working machine, three tableunits arranged in a triangle, a driven wheel for each table unit arranged concentric thereto, an endless conveyer surrounding the table units, a driver for successively engaging the respective wheels to turn them in sequence, means for supplying charges of glass to the respective units in succession, and means whereby the respective units fabricate the charges received into ware and deliver it to said conveyer.

2. In a glass workin machine, a group of three table units arranged in like relation to the axial center of the machine, a wheel for each unit arranged concentric thereto, a drive shaft passing through the axial center of the machine havingassociated means adapted to successively turn said wheels whereby each unit is indexed in turn, and means for positively locking two of the table units against turning movement while the remaining table unit is being turned.

3. In a glass working machine, a group of glass working units arranged in like relation to the axial center of the machine, drive wheels for said units, continuously rotatable driving means successively cooperative with said drive wheels to impart turning movements thereto about their own axial centers in succession, a drive shaft for said driving means, charge receiving means carried by said shaft, and equipment for guiding charges delivered to said receiving means to the respective units.

4. In a glass working machine, a group of glass working units each rotatable about its own axial center and each having a plurality of fabricating assemblies, a drive wheel for each unit arranged coaxial therewith, driving means rotatable about the axial center of the machine adapted to impart turning movements to said wheels in succession, a shaft supporting said driving means, charge receiving and distributing means actuated by said shaft to distribute charges in succession to the respective units, and means associated with each unit for guiding charges into the respective fabricating assemblies thereof.

5. In a glass working machine, three table units arranged in a triangle, a drive wheel associated with each table unit, a driver for successively engaging the respective drive wheels to turn them in sequence, drive means for said driver, means for supplying charges of glass to said units in succession, means associated with each unit operated under control of said drive means to fabricate received charges into finished ware, and

6. In a mechanical movement, three wheels each having six equally and alternately spaced driving and locking channels, said wheels being arranged in the same plane and with their axes parallel and positioned at the apices of an equilateral triangle, respectively, and being grouped substantially as near to the center of such equilateral triangle as their peripheries will permit, a single drive means pivoted about the center of such equilateral triangle for successively engaging the driving channels of said wheels to impart rotary movement thereto, and means associated with said drive means simultaneously cooperative with the locking channels of two of said Wheels to lock them against rotation while the remaining wheel is being rotated, the arrangement of said wheels being such that the drive means engages a driving channel of the next wheel to be rotated before it leaves a driving channel of the wheel being rotated.

7. In a mechanical movement, three wheel each having six equally spaced driving channels, said wheels being arranged in the same plane with their axes parallel and positioned at the apices of an equilateral triangle, respectively, and being grouped substantially as near to the center of such equilateral triangle as their peripheries will permit, and driving means pivoted about the center of such equilateral triangle for successively engaging the driving channels of said wheels to impart rotary movement thereto, the arrangement of said wheels being such that the driving means engages a driving channel of the next wheel to be rotated before it leaves a driving channel of the wheel being rotated.

CHARLES A. SCHUCK.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTSv Number Name Date Re. 16,077 Jenkins May 19, 1925 157,722 Paine Dec. 15, 1874 347,294 I-Iaskin Aug, 10, 1886 1,343,987 Stewart June 22, 1920 1,499,522 Hall 1 July 1, 1924 1,571,653 Textorius Feb. 2, 1926 2,143,696 Holmes et al. Jan. 10, 1939 2,167,919 Wadsworth Aug. 1, 1939 2,235,047 Sloan Mar. 18, 1941 2,267,236 Goodrich Dec. 23, 1941 2,409,300 Miles Oct. 15, 1946 FOREIGN PATENTS Number Country Date 507,588 Great Britain June 19, 1939 Great Britain i May 12, 1942

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