US1923554A

US1923554A - Machine for feeding molten glass

Info

Publication number: US1923554A
Application number: US157943A
Authority: US
Inventors: Karl E Peiler
Original assignee: Hartford Empire Co
Current assignee: Hartford Empire Co
Priority date: 1916-03-31
Filing date: 1917-03-28
Publication date: 1933-08-22
Anticipated expiration: 1950-08-22

Description

Aug; 22, 1933. K. E.- PEILER I 1,923,554 v MACHINE FOR FEEDING MOLTEN GLASS Original. Filed Aug. 13 1914 9 Sheets-Sheet 2 110 v Wz'zf n es s v 1/8 #16 T72 216722502": 0"; i/cz rz/z's. KarZE E2267:

K. E. PEILER cams EoR FEEDING uom'an cuss Aug. 22, .1933.

9 Sheets-Sheet 3 Original Filed Aug. 13,1914

I 1221922507": Karl E. Eden WZ'f/nes's: *ifarvzis.

Atty.

1933- K. E. PEILER "1,923,554

IACHINE FOR FEEDING MOLTEN GLASS v Original Filed Aug. 13, 1914 9 Shets-Sheet .4

442 "fizz/6722502 KarZ E PeziZer Atty,

Wzfness: 15. f/m'z/z's;

1933- K, E. PEILER MACHINE FDR FEEDING MOLTEN GLASS Original Filed Aug. 13, 1914 v 9 Sheets-Sheet 5 O 5 6 6 9 4 5 5 ww 9 m a a 4 a m 9 I I 6 MW 2 1 Q J m m w 4 a I t w w %v fi Lu 2% 0 6 9 5 w 9 1720922502 i Kari if P9229) (XJQM 3777414 Aug. 22, 1933. K. E. PEILER MACHINE FOR. FEEDING MOLTBN I GLASS Original Filed Aug. 13, 1914 9 Sheets-Sheet 7 A11g- 1933- K. E. PEILER I MACHINE FOR FEEDING MOLTEN GLASS Q9 \L g Q *9 9 Sheets-Sheet 8 Original Filed Aug. 1

Q ME

[72 2/872 zfor. Ka'rZ E Peale Aug. 22, 1933, K; P ILE 1,923,554

MACHINE FOR FEEDING MOLTEN GLASS Original Filed Aug. 13, 1914 9 Sheets-Sheet 9 11/ l ll i Witness! [7i U672 50 7. 15. :K/arikz's. Karl E. PeZJZer Aug.

Patented Aug. 22, 1933 UNITED STATES PATENT OFFICE MACHINE FOR FEEDING: MOLTEN GLASS ware Continuation of application Serial No. 856,548, August 13, 1914, and in Canada March 31, 1916.

This application March 28, 1917.

Serial No.

19 Claims. (Cl. 49-:55)

This invention is an improved machine for feeding molten glass from a melting tank, pot, or other container or source of supply, and delivering it in charges or gathers of uniform size to apparatus for pressingblowing or otherwise shaping the glass to commercial or usable form.

My invention is herein shown to be embodied in an organized machine for feeding and cutting off the molten glass in charges or gathers, the size and time of delivery of which may be regulated and varied over a wide range, while the machine is running, and without interrupting the feeding operations of this machine or the operations of the shaping machine to which the charges of glass are being fed, which is desirable, not only to avoid stopping the production, but to maintain uniform heat conditions in the molds or other shaping instrumentalities. Means are provided for varying the timing of its own component mechanisms relative to each other, and also to maintain proper synchronism between the delivery of the successive charges of glass and the operation of the associated shaping machine, providing or compensating for variations in the consistency or the behavior of the glass, and in the distance through which the charges are delivered to the shaping machine. The invention also comprises other features which will be duly described herein and set forth in the appended claims.

This application is a continuation of my prior application filed August 13, 1914., SerialNo. 856,- 548.

Figure 1 of the drawings is a front elevation showing in reduced scale the general features of the machine. Fig. 2 is a plan view in section taken on the line 2-2 of, Fig. 1. Fig. 3 is a front elevation in larger scale of the upper portion of the machine. Fig. 4 is an end elevation shown partly in section taken on the line 4 of Fig. 3. Fig. 5 is an end elevation, in section taken on the line 5 of Fig. 3. Fig. 6 is a plan view of the upper mechanism. Fig. 7 is a front elevation shown partly in section taken on the line 7-'7 of Fig. 6. Fig. 8 is a front elevation of a portion of the shear mechanism shown partly in section taken on the line 88 of Fig. 9. Fig. 9 is an end elevation projected from Fig. 3. Fig. 10 is a plan view projected from Fig. 8. Figs. 11 and 12 are plan views in section takenon the line '12--12 of Fig. 5, illustrating tWfl steps in the operation of stopping the shear mechanism. Fig. 13 is a rear elevation of the same parts in the position shown in Fig. 11. Fig. 14 is an end elevation and Fig. 15 a plan view projected therefrom, of a portion of the paddle operating mechanism, Fig. 14 being shown in section taken on the line 1414 of Fig.

15, and Fig. 15 being in section taken on line 1515 of Fig. 4. Fig. 16 is a plan viewof the chuck or holder for the paddl'ein section taken on the line 16-16 of Fig. 4.: Fig. 17 is an underneath sectional view of the pneumatic clutch release or starter shown in Fig. 4, projected from the lower end of that figure. elevation and Fig. 19 a plan view of an alternative mechanical clutch or starting or release device of a glass shaping machine with which the present machine may be associated. Fig. 20 is a side elevation, partly in section, of the paddle conduit, and chute. Figs. 21 and 22 are side eleva- Fig. 18 is a side tions illustrating form variations of the gather obtainable by adjusting the period of the feeding movements of the paddle.

The machine shown herein is intended and adapted to be mounted between a glass tank or furnace and a glass shaping machine, the glass being taken from a projecting spout or conduit 10 of any suitable furnace, and delivered in separated gathers or mold charges, to an associated machine for blowing or pressing or otherwise shaping the glass into commercial form, the delivery being made directly from the conduit into the shaping molds of the associated machine, or along a trough or chute to those molds, as may be found desirable.

This machine is designed in a unitary structure which may be bodily moved inits entirety from be supported upon a foundation adjacent to thetank or furnace. The upright frames or

columns

12 and 13 rest upon the base plate 11, the machine as a whole being arched over the spout or conduit 10 extending from the melting chamber of the furnace (not shown).

The molten glass flowing from 'the furnace along the spout or conduit 10 is swept in successive waves of suitable size for forming the desired gathers by means of the paddle or displacer 15, which is moved forward and back in the glass longitudinally of the conduit, thus propagating successive waves of glass, which fall or surge forward through the outlet gap 16 in the end wall of the conduit. The extrusion of each surge or wave of glass from the conduit and its separation to form a charge or gather are definitely completed by the movements of the paddle at the forward end. of its stroke, aided by suitable the paddle being varied according to the size of 4 charge desired. The paddle 15 is suspended for horizontal swinging movement on the arm 20,

the upper end of which is pivotally supportedv by the pivot shaft 21. In order to enable the paddle to be raised and lowered during its horizontal swinging movement, the pivot shaft 21 is supported in a vertically swinging arm 22, the forward end of which is pivotally mounted on the shaft 23. As thus suspended, the paddle may be swung horizontally and raised and lowered either independently, .or by a combination of these horizontal and vertical movements.

In the machine herein shown, such a combination movement is effected by means of the cam 25 controlling the horizontal swinging movements of the arm 20 on its pivot shaft 21., and the cam 26,

which controls the vertical swinging movements of the arm 22 and its suspended arm 20 on the pivot shaft 23. These cams and their operating a the operator may, without stopping the machine tion to the means for severing or otherwise acting upon or receiving the gathers, without changing the frequency of these operations, thereby bringing them into step, i. e., into properly synchronized relationwith the regular and continued movements or operations of the molds or other devices to which the gathers are delivered.

The advancing andretardi'ng device is applied to the earns 25 and 26 as shown in section in Fig. '7. These cams are mounted side by side upon a sleeve 27, being secured thereto by means of a key 28. The sleeve turns loosely upon the main shaft 30 and is.provided at one of its ends with the bevel gear 31, the teeth of which mesh with the bevel pinion 32 turning loosely on the-- stud 33, which is supported in radial relation to the main shaft 30 upon the sleeve 34 within which the main shaft 30 turns loosely. The bevel gear 35 is keyed to the main shaft, and meshes with the bevel pinion 32, which acts as an intermediate gear through which the bevel gear 35 drives the sleeve gear 31 and the

cams

25 and 26. Appurtenantrto the sleeve 34 is the worm gear segment 37, the teeth of which mesh with a worm 36 journaled in the bracket 38, and having a handwheel or knob 39 projecting from the front of the machine within convenient reach of the operator. With this device it will be obvious that the

cams

25 and 26 will be rotated by the main shaft 30 through the bevel gears 35,

32 and 31, in a direction opposite to that of the shaft itself. By turning the sleeve 34 in the direction ofrotation of the driving gear 35. the

, rotative position of the cams25 and 26 will be moved back relative to the main shaft 30; and the other mechanisms of themachine. and the formation of the drops or gatherswill be correspondingly retarded. .,If earlier-formation of the drop or gather is desired, the sleeve 34 is turned by means of the handwheel 39 and worm 36, so as to carry the intermediate bevel gear 32 in a direction opposite that of its driving gear 35, which movement advances the rotary position of the

cams

25 and 26 relative to the other mechanisms, thereby correspondingly advancing the period of formation of the gathers. With a right hand worm 36 this advancing movement would be obtained by turning the worm in the direction of the arrow shown upon the knob 39 in Fig. 1. This provision enables the formation and delivery periods of movement to be advanced or retarded relative to the movements of the molds and severing devices, or either of them, thereby adapting the machine to variations in the consistency of the glass from time to time, and at the same time maintaining uniform frequency of delivery with ease and certainty, either with'or without changing the size or volume of the gather. Cooler or more viscous glass settles down more slowly at the outlet into the desired form of gather, thus requiring inore time to acquire the desired size and form, in which'case the period of operation of the paddle would be advanced by turning the knob 39, thereby commencing the formation of the subsequent successive gathers so much earlier. This advancing and retarding of the entire feeding period may ,be likened to the advancing and retarding of the ignition in an automobile engine. The effect of thus changing the period of the paddle movement, by advancing and retarding the time of that movement is illustrated in Figs. 21 and 22, which show two different gathers, both of the same size, i. e. having the same volume of glass below the plane of severance indicated by the line 3:, at the time of severing. The shorter, more compact form of gather shown in Fig. 21 is obtained by retarding the period of the paddle movement, relative to the time of the severing operation, so that the fed mass of glass is pushed through theoutlet only a suflicient lengthof time before the cutting operation to enable the gather to settle down a relatively short distance below the plane of severance before being severed. On the other hand, the longer gather of Fig. 22, having the same amount of glass as the gather of Fig. 21, results from advancing the period of paddle movement, so that the glass is pushed over the dam earlier, relative to the cutting action, and therefore has more time toelongate belowthe plane of severance before being severed. This variation is very desirable, in order to produce a gather approximating in form, and especially in dimensions, to the blank or parison to be made, which; in turn approximates in form to the article which is to be produced. Thus the gather of Fig. 21 is adapted for relatively short and wide forms of ware, while the gather of Fig. 22 is adapted for' the making of bottles and other relatively long and narrow forms of ware. This practice closely approximates the well-known hand practice, in which the hand gatherer manipulates his gather, before placing it in the shaping mold, especially in blowing operations, so as to approximate the form of the mold cavity, which is, of course, the form of the ware. It is well understood that a skin or enamel is formed around the gather by its exposure to the air, and it is desirable, as in the hand practice. to make the gather approximate its succeeding or final form so as to avoid rupture or infolding of the skin by its shaping in the mold or in successive molds;

In order to provide for adjusting the vertical position of the paddle, mainly to regulate the depth of its dip into the glass, the horizontal arm 22 and its operating cam arm 42 are made separate, both pivotally mounted on the shaft 23 and connected by an adjusting screw 43 having a knob or handwheel 44 projecting within convenient reach'of the operator. The cam arm 42 is provided with an anti-friction roller 45 resting upon the peripheral surface of its cam 26, being held against that cam by the weight of the paddle and its connected parts. The position of the paddle is raised by turning the right-handed adjusting screw 43 in the direction of the arrow shown upon the knob 44 in Fig. l.

The horizontal swinging movements of the paddle are imparted by means of the cam 25 working against an anti-friction roller 47 appurtenant to the cam arm 48, mounted to turn freely upon the pivot shaft 49, which is supported in the

brackets

50 and 51. From the hub 53 of. the cam arm depends a pair of quadrant arms 54 from which an adjustable connection, best shown in Figs. 14 and .15, is made with the paddle arm 20. To increase or diminish the amplitude of swinging movement of the paddle 15, the quadrant arms 54 are provided with slots 55 for receiving a pivot stud 56 which may be moved lengthwise of the slots and clamped at any point therein, as shown in Fig. 15, by means of the clamp nut 57. A nut 58 turning freely on the pivot stud 56 carries the adjusting screw 59, provided with a handwheel or knob 60, which, like the other adjusting knobs, projects within convenient reach of the operator. By turning this adjusting screw in the nut 58, the distance between the quadrant arms 54 and the pivot shaft 61, by means of which this adjusting device is connected to the paddle arm 20, may be lengthened or shortened, and thus the longitudinal position of the paddle stroke in the conduit may be changed, without changing the amplitude or other characteristics of the paddle movement. By turning the right-handed screw 59 in the direction of the arrow on knob 60 in Fig. 1, the entire paddle stroke position is moved forwardly, and by turning the screw in the opposite direction, the entire paddle stroke position is moved backwardly, without changing the amplitude of the paddle movement. I

In order to avoid breakage of or injury to the paddle 15 from hard glass, or when the movements of the paddle are unduly obstructed from any cause, provision is made between the paddle and its cam 25 for yielding in both directions to such obstructions. Undue resistance to the backward movement of the paddle would overcome the tension of the springs 63, which hold the cam roller against the cam'25. On the other hand, undue resistance to the forward movement of the paddle would overcome thetension of the spring 64-, which is located inside the casing, one end 01' whichis supported upon the pivot shaft 61, connecting it with the paddle arm 20 (Figs. 14 and 15), while the other end is supported by the adjusting screw 59, which-projects intothe casing and has an enlarged and 66.

parts. A sleeve nut 68 clamped upon the ,adjust I ing screw 59 by means of a screw .69, also projects through the capinto the casing. The tension of the spring 64 between the enlarged endv 66 of the screw, and the cap 67 of the casing tends to hold the connection yieldingly in its extended position, stopped by the shoulder '70 of the sleeve-nut against the outer side of the cap 6'7. The tension of the spring 64 is increased or diminished Without changing the length of the connection, by loosening the clamp screw 69 and holding the sleeve-nut 68 stationary while screwing the adjusting screw 59 outwardly or inwardly through the sleeve nut 68 to the desired extent, after which the sleeve nut is again clamped upon the screw. When the forward movement of the paddle is obstructed suflicient-.

paddle 15 a swinging chuck is provided, best shown in Figs. 14, 15 and 16. This chuck is pivoted at on the lower ends of the paddle arm 20, so that the chuck may be swung from its working position shown in Figs. 4, 5 and 7 to or toward the position shown in Fig. 14, extending forwardly above the conduit in a position to enable the paddle to be easily removed from the chuck. The shank or stem 76 of the paddle is clamped in its seat by a swinging jaw 77 pivoted at '78 to the chuck body '79, and clamped in place by means of the swinging bolt 80. When the chuck with'its paddle is swung downwardly to its working position shown in Figs. 4, 5 and 7, it is held in that position relative ,to the arm 20 by means of a swinging bolt 82 (Figs. 14 and 15) turning freely upon the pivot shaft 61, and swinging into a fork or slot 83 in the upper end of the chuck arm 84, the hand nut 85 being clamped against the outside of the chuck arm, as best shown in Fig. 15. To releasethe paddle, the nut 85 is first loosened and the swinging bolt 82 is thrown over to the position shown in Fig. 14. This allows the chuck arm and paddle to be' turned to theposition shown in the latter figure, in which position the I chuck arm may be held by tightening a clamp nut 86 upon the clamp bolt 87 passing through an arc-shaped slot 88 in the chuck arm (Fig. 14). ing bolt turned back. The clamping jaw 77 is then swung open out of the way and the paddle removed with tongs or other suitable devices. This arrangement enables a brokenor burned out paddle to be removed and replaced by a new paddle, with only a few minutes interruption' in the work of the machine.

To facilitate adjustment of the paddle sidewise in theconduit, the chuck body 79 is held to the chuck arm 84 by means of bolts 91, passing through enlarged holes or slots in the chuck arm; and the latter is provided with oppositely disposed set screws 92 for sidewise adjustment The nut 81 is then loosened and the swingor the chuck body, which is then clamped. by the to the bending point. The stem 76 is made of a piece of pipe, the lower end of which is secured in the body of the paddle by means of a cap 94, or in any convenient way. A smaller pipe 95, extending inside of the larger pipe '76, with an annular space between them, receives at its upper end a rubber tube 96, or other flexible connection, leading to any convenient source of air supply, which after passing to the lower end of.

the innerpipe returns through the annular space between the two pipes.

In Fig. 14 for convenience of drawing, the paddle is shown swung to a horizontal position, which is higher than would generally be required in practice for the easy removal of the paddle.

As the succeeding waves of glass emerge from the outlet 16, they sag or settle down on the end of the trough or conduit, taking a more or less pear shaped form as they accumulate in a mold charge below the plane in which they are severed, and are severed at regular intervals by means of shear mechanism operated by this'machine in suitable time relation to the other mechanisms. The shear blades 100 are carried in adjustable heads or holders (Figs. 8, 9 and 10) by means of which the blades are adjusted up, down, and sidewise, relative to each other and to the conduit, so as to sever the gathers at the desired position and to the best advantage. The shanks or stems 01' the shear blades 100 are removably clamped by bolts 101 to cross slides 102, which are-fitted to slide crosswise of the vertical slides 103, being clamped in position by means of screws .104. The vertical slides 103 are mounted for vertical sliding movement on the heads 105 of the slides 106, being adjusted vertically by means of the screws 107 and clamped in place by screws 108. The shear slides 106 are fitted for slidingmovement in the housings or casings 109, which substantially enclose the slides to protect them from dirt and pieces of glass, The casings 109 are mounted substantially opposite to each other on the columns 12 and.13, as shown in Fig. 1, and the shear slides are moved toward and away from each other by means of levers 111, which connect with the slides 106 by means of links 112. The shear levers 111 are pivotally mounted on studs 113 fixed in the

columns

12 and 13. The upper ends of the shear levers are provided with studs 1.10 having anti-friction rolls 114 which are held by suitablesprings 180 against the

shear cams

115 and 116 fixed upon the main shaft 30, the cams being shaped and timed to bring the shear blades 100 together and cut off the successlve drops or gathers at the proper times relative to the other mechanisms. Means are preferably provided for throwing the shear mechanism out ofoperation at any desired time. This may be done in various ways. As herein shown, it is accomplished by means of auxiliary segmental cams 118 (Figs. 11, 12 and 13), which are mountthe cam rolls 114 and their shear levers 111 out of the range of movement of the

shear cams

115 and 116, as illustrated in Fig. 11, thus holding the shear-blades in their rearward or retracted position. When the throw-out cams 118 are turned to their inactive position shown in Fig. 12, the

shear cams

115 and 116 at once resume the nor A mal operation 01' the shear mechanism.

The throw-out cams are coupled together and moved into and out of their active positions by means of toothed pinions 121 on the connecting shaft 122, engaging with segmental gears 123 appurtenant to the cams 118. An operating handle 124 is attached at some part of the machanism, convenient to the hand of the operator, in this case being appurtenant to one of the sector gears 123 (Figs. 3 and 5). The pinion shaft 122 connecting the two throw-out cams is herein shown to be journaled within the cross shaft or rod 23, which is of tubular form for this purpose, and

also serves as a cross stay between the

brackets

50 and 51, in addition to being used as a pivot bearing for the

arms

22 and 42.

The machine may be driven in any convenient way from any available source of power, or from an associated shaping machine. It is herein shown to be provided with a driving gear 130 (Fig. 1) carrying the driving member 131 of a clutch, both turning loosely upon the main shaft 30. The driven member 132 of the clutch is keyed or splined to the main shaft, to permit it to be moved endwise thereon, and is so moved by a clutch fork 133 carried by a clutch rod 134, which is so mounted as tobe within the reach of the operator. In the present instance, the clutch rod 134 extends axially through the pivot shaft 49 and has upon its opposite end an operating handle 135, by means of which the clutch is closed and opened to start and stop the machine.

It is usually desirable to operate this machine in synchronism or step with the glass shaping machinery to which the glass is fed. Where both of the associated machines operate continuously, they may usually be maintained in proper synchronism by being positively connected by suitable driving gearing. But if either machine operates intermittently, or if they are independently driven, it may frequently be found desirable to connect or control them by synchronizing devices which may be adjusted to vary the time-relation of the two machines, and'which will operate .the associated machine only when the controlling machine is in working operation. One form of such a device is shown in Figs. 3, 4 and 6. The driven member 132 of the clutch has adjustably clamped upon it a collar or band 138 having an abutment 139 which strikes against an arm 140 mounted upon the upper end of a shaft 141, journaled in the frame 13. This shaft may lead directly to the associated machine, and.

operate a clutch or single revolution device or whatever may be found convenient or available for this purpose. In thepresent instance, the lower end of the shaft serves to operate a pneumatic connection through the valve 142, a cross passage 143 in the rod or shaft 141 serving to open and close communication'through the valve as the rod is turned by the abutment pin; 139. A spring 144 serves to return the lever 140 when the latter is released from the pin 139, a suitable tion of the rod (Fig. 3'). The pneumatic connection through the valve 142 when opened or closed according to the necessities of the case, by turnand thus start the associated shaping mechanism in suitable time relation to the feeding machine.

The timed relation may be varied by changing the position of the pin 139, which is done by loosening the clamp screw 146 and slipping the band and the pin 139 to the desired position, and then clamping the band.

Figs. 18 and 19 illustrate a modified mechan: ical connection ,tor the synchronizing device.

An arm 150 is secured to the lower end of the rod 151 corresponding to the rod 141, and is provided with a connecting rod 152 leading to the clutch or releasing or starting device of the associated shaping mechanism.

The gathers of glass after being severed by the shear mechanism may fall directly into the shaping molds if the character of the machine permits. In many instances, however, it will be found inconvenient or undesirable to set the and the lower end on the pivot shaft 157, carried by the arm 158, having a pivotal connection 159 with any suitable driver or cam or carrier, by means of which the lower end of the trough may be swung on its pivot shaft 156 to carry the deliveryend of the trough in register with a traveling mold. The upper end of the trough may be swung on the

pivots

157 or 159 to carry it away from beneath the delivery spout, to allow the gathers of glass to fall as waste or cullet into a suitable pit or receptacle whenever the shaping mechanism may be out of operation.

- The upper ,end of the chute rests in a swivel 160, the pivot shaft of which is supported in a link carrier 161 connected by the pivot pin 162 with a lever 163 pivoted at 164 to the base of the machine. An operating rod 165 connected at 166 to the end of the lever 163 may be employed for swinging the upper end of the chute.-

into and out of delivery position.

To facilitate sliding the charges of glass down the inclined chute with rapidity and uniformity, it is found useful to lubricate the surface of the chute with water or other suitable liquid, so as to provide a fluid film between the glass and the surface of the chute. For this purpose a pipe 170, some portion of which should be flexible to allow of the swinging movements of the chute, is connected with a supply ofv the water or other liquid to be used. The flow of liquid may be regulated as a continuous stream. It

will, however, in some instances be found preferable to interrupt the flow of .water between the successive charges of glass, so as to prevent an excess of water from being carried into the molds. To this end an intermittent water feeding or spraying device is provided. A valve 171, the

casing of which may be attached to the frame 12, as shown in Fig. 2, is fitted with a suitable plug or plunger, which is turned, or moved up and down, to interrupt the flow of liquid through the valve at the desired intervals. In the pres-- ent instance, a reciprocating plunger 172, having a passage 173 for the liquid, is mounted to slide vertically in the frame 12, the upper end of the rod engaging by means of a. suitable anti-friction roll with the cam .174 secured to the outer face of the shear'cam 115. The. cam 174 may be adjusted to and clamped at the position for operating the valve 171 at the desired time.

In the operation of this machine, the paddle 15 is moved forward and back through the glass either in conjunction with, or without a raising movements and their range of position of move ment are suitably adjusted by the means above described in detail. During these adjustments of the paddle mechanism the shear mechanism and the chute mechanism may be retracted out of operation; Having these adjustments made, the shear and chute mechanisms are thrown into operation so as to sever the successive waves or surges of glass extruded from the end of the conduit by the paddle and slide the charges down the chute to the shaping mold.

The synchronizing devices shown herein for maintaining synchronism between the feeding machine and its associated machinery. may be employed, or may be omitted, being of an adjunctive character. This is also true of the devices for the timing and interrupting the flow of liquid to the chute. The mechanism herein shown may be modified and adapted to various requirements within the scope of the appended claims.

The terms synchronizing and flaynchronism" as herein employed are not confinedto their'pre-- cise meanings as defined in the dictionaries, namely to exact coincidence or simultaneousness of operation. These'terms as herein employed relate to the obtaining and maintaining of proper time relation in the operations of the respective parts, whether those operations are simultaneous or otherwise.

I claim as my invention:-

1. The combination, with a container for molten glass, of a glass displacer suspended for reciprocating movement in the, container, means for glass, a paddle, a suspended arm to which the paddle is attached, cam, and connecting means for swinging the paddle horizontally through the glass.

3. The combination of a conduit for molten glass, a paddle, a suspended paddle arm, carrying the paddle through the glass, a substantially horizontal arm, from which the paddle arm is suspended, and means for swinging the said arms in timed relation to each other.

4. The combination of a conduit for molten glass, a paddle arm and paddle suspended for horizontal swinging movement, a substantially horizontal arm from which the paddle arm is suspended, and cam operated devices for swinging the said arms in timed relation to each other to move the paddle both horizontally and vertically in the glass. v

5. In a glass feeding machine, the combination of a conduit for the molten glass,'a. paddle and paddle arm suspended for horizontal swingment, a substantially horizontal arm from which the paddle arm is suspended, a. cam and its connections for swinging the paddlearm horizontally, a cam for swinging the horizontal arm vertically, and an adjustable connection between, the last named cam and the horizontal arm for varying the position of its vertical movement.

7. The combination, in a glass' feeding'machine,

of a conduit for molten glass, a paddle, an arm on which the paddle is mounted for swinging movement in the glass, and an adjustable con-= nection between the paddle and the said arm whereby the angular position of the paddle relative to the arm may be changed.

8. In a glass feeding machine, the combination of a conduit for molten glass, a paddle suspended in the glass for swinging movement, and means, including a yielding connection, for swinging the paddle.

9. In a glass feeding machine, the combination of a conduit for molten glass, a paddle suspended for swinging movement in the glass, and means for operating the paddle' including connections yielding in both directions of travel of the paddle.

10. In a glass feeding machine, the combination of a conduit for moltenglass, a paddle suspended in the glass for swinging movement, meansfor swinging the paddle, including a yielding connection, and means for varying the yielding resist ance of the connection.

11. In a glass feeding machine, the combination of a conduit for molten glass, a paddle suspended in the glass for swinging movement, means forswinging the paddle, including a yielding connection, and means for'adjusting the yielding connection to lessen or increase its resistance to yielding.

12. The combination, with glass feeding mechanism for intermittently feeding molten glass from a container in successive suspended masses, of periodically acting shear mechanism for cutting off mold charges successively from the suspended masses in timed relation to the operations of the glass feeding-mechanism, and means for putting the shear mechanism out of operation and out of cutting position independently of the glass feeding mechanism and restoring it to its said timed relation.

13. The combination, with means for feeding molten glass intermittently from a glass container in successive suspended masses, of periodically effective shear mechanism for severing separate mold charges from the suspended masses, cams driving the shear mechanism in timed relation to the operations of the feeding mechanism, and auxiliary cams for intercepting the cam driven parts and holding them away from their respective cams.

14. A shearing device for a glass working machine comprising a reciprocating cutter, yielding means constantly tending to move the cutter on its working stroke, mechanical operating means periodically allowing the working stroke and forcing the return stroke, and manually operable stops for preventing the working stroke.

15. In a glass feeder, the combination witha container for molten glass, of a glass feeding implement, means for reciprocating the implement in the glass, and means located between the implement and its reciprocating means for elevating the implement out of the glass.

16. In glass working machinery, a movable severing mechanism, a cam, connections between said cam and said severing mechanism, for driving the severing mechanism intermittently, and an auxiliary segmental cam angularly adjustable about the axis of rotation of said first named cam to and from position to automatically move said connections out of contact with said first named cam.

1'7. In glass working machinery, a movable severing mecanism, a cam, connections between said cam and said severing mechanism for driving the severing mechanism intermittently, and means movable to and from a position to automatically move said connections out of position to be actuated by said cam.

18. In apparatus for separating molten glass .into mold charges, the combination with a container for the glass having a discharge outlet from which masses of molten glass may be suspended, of an implement projecting into the glass adjacent to the outlet and operable periodically to causethe discharge and suspension of successive masses of the glass from said outlet, a pair of shear blades movably mounted and guided to meet beneath the outlet in spaced relation thereto and operable alternately to meet and to be withdrawn from beneath the outlet for severing mold charges from suspended masses of the discharged glass, and means for operating the implement and the shear blades periodically in timed relation to cause the repeated discharge, suspension and severance in suspension of mold charges at predetermined times, said means being adapted to start and stop the operation of the shear blades at will during the continued periodic operation of the implement and to restore the said timed relation when the operation of the shear blades is started.

19. In combination, a glass feeding mechanism for intermittently feeding molten glass from a container in successive suspended masses, severing means operating periodically in timed relation to the operations of an associated glassware fabricating machine for severing mold charges from said suspended masses, and means operable at will during the continued operation oi the feeding mechanism for stopping the operation of the severing meansand for restoring the severing means to operation in its former timed relation to the glassware fabricating machine.

KARL} E. Penna,

rum No. August 22, 1933.-

Itfs herebycertificd't-hat error appears in the printed-apeciiication of the above numbered pltgnt requiring correction as follows: Page 6, line 35, claim 12, ,after "the" insert the words "intermittent feeding"; and that the said Letiers Patem shauld big read with {his correction therein that .the same may coniorm lathe-record oi the use in'the Patent 'fiffice Sigued and pied flail 24th dgy of October, A D. 1933.

F. M. Hopkins (Sea!) Acting Commissioner 0f Pafentl;