US1871497A - Glass working machine - Google Patents

Description

Aug. 16, 1932. CLARK 1,871,497

GLASS WORKING MACHINE Filed April 7, 1926 5 Sheets-Sheet 1 INVENTOR Aug. 16, 1932. A. M. CLARK GLASS WORKING MACHINE 3 Sheets-Sheet 2 Filed April '7, 1926 Aug. 16, 1932.

A. M. CLARK GLAS S WORKING MACHINE Filed April 7, 1926 5 Sheets-Sheet 5 INVENTOR hm g cam ww Patented Aug. 16 1932 N NE AUGUSTUS MARTS CLARK, OF MILLVILLE, NEW JERSEY, ASSIGNOR TO WHITALL 'iAT'UM COMPANY, OF MILLVILLE, NEW JERSEY, A CORPORATION OF NEW JERSEY GLASS WORKING MACHINE Application filed April 7, 1926. Serial N0. 100,339.

The present invention relates broadly to the art of glass working, and more particularly to apparatus adapted for the manufacture of hollow articles such as bottles or the a like, in which a pouring operation is involved, although the utility of the invention is not limited with respect to the particular construction of the apparatus herein disclosed, nor of the type of ware manufactured thereon.

It has heretofore been proposed in the art to which the present invention relates to provide glass working machines with a pouring guide or funnel adapted to serve successive gathers or charges of glass into the molds in which the forming operations are to take place. Such devices have heretofore been of several difi'erent types, the most of which have, however, been so mounted as to have at some time during the operation of the machine a sliding engagement with the upper ends of the molds, the term upper being used irrespective of whether the molds are in upright or inverted position. This sliding contact has been somewhat objectionable for the reason that it tends to destroy, to some extent at least, the original charactcristics of such surfaces by means of which effective. sealing was obtained.

In still other cases, pouring guides, which expression is hereinafter used generically as definitive of all devices of the general character hereinbefore referred to, have been yi-eldingly mounted in such manner that they have been adapted for movement in a substantially vertical direction into and out of engagement with successive molds. lVhile such constructions have operated satisfactorily for certain purposes, they have not been efi'ective for providing as tight a seal as is sometimes considered essential, and they have usually not been effective for assisting in maintaining the molds with which they cooperate in closed condition.

It is one of the objects of the resent invention to provide a pouring gui e of the gen eral character herein contemplated, which will be effective not only for clamping the molds with which it successively cooperates 5 against possibility of opening movement, but

which will also insure a tight seal between the guide and the mold.

In the accompanying drawings there is shown for purposes of illustration only a preferred embodiment of the present invention, it being understood that the drawings do not define the limits of my invention as changes in the construction and operation therein referred to may be made without departing either from the spirit of the invention or the scope of my broader claims.

In the drawings:

Figure 1 is aside elevation view. of one form of glass working machine, constructed in accordance with the present invention.

Figure 2 is a transverse sectional view, on an enlarged scale, along the line II-II of Figure 1, looking in the direction of the arrows.

Figure 3 is a vertical sectional view taken on the line IIIIII of Figure 2;

Figure 4 is a vertical sectional view on the line IVIV of Figure 2; I

Figure 5' is a detail plan view of the pouring guide holding bracket;

Figure 6 is a diagrammatic view, illustrating one manner of operation in accord ance with the present invention;

Figure 7 is an enlarged sectional view of the control valve of Figure 6, and

Figure 8 is a top plan view of the blow head and its operating mechanism.

In carrying out the present invention there 'may be provided a glass working or fabricating machine of suitable construction mounted on a base 1. As herein illustrated, the machine comprises a parison or blank mold table 2 and a blow mold table 3; these tables being of any usual and well known construction. Mounted on the parison table'2 is a series of parison molds 4, each carried by a rotating mold head 5 of conventional construction, only a portion of one of the molds being shown in the drawings.

Projecting upwardly from the base 1, adj acent the periphery of the parison table, is a standard 6, preferably of circular cross-section throughout at least the major portion of its length. Mounted on the standard 6, adjacent the lower portion thereof, is an ad- 100) justable bracket 7, which carries a fluid pressure cylinder 8, containing a piston, the piston rod 9 of which is eflective for raising or lowering the plunger or mouth forming pin mechanism 10 into or out of co-operative relation with successive parison molds 4, as well understood in the art.

Mounted on the standard 6 at an intermediate portion thereof is a bracket 11 carrying a fluid pressure cylinder 12 for actuating the clamping mechanism 13, provided for successive co-operation with the parison molds. Above the bracket 11 is a stop 14, adjustably clamped in position on the standard and provided with a downwardly projecting portion 15, adapted to co-operate with the parison mold, as clearly indicated in Figures 1 and 3 of the drawings to prevent the parison mold from rising under the action of the mouth forming pin mechanism 10.

The standard 6, above the stop 14, carries a funnel holder 16, comprising a split hub 17, as shown more particularly in Figure 5 of the drawings, the hub being formed with lugs 18, through which may be passed a suitable clamping bolt 19. Within the hub and surrounding the standard is an eccentric sleeve 20, the upper end of which is preferably formed with an angular or knurled portion 21, by means of which the eccentric sleeve may be rotated to different positions to thereby vary the position of the funnel holder 16, as Wlll be understood. Projecting outward- 1y from the hub 17 is an arm 22, the outer end of which is shaped to co-operate with a funnel 23. Preferably the funnel is formed with an intermediate portion of reduced diameter. providing opposed substantially angular shoulders 24 adapted to co-operate respectively with the upper and lower sides of the arm 22. The funnel may conveniently be clamped in position by a hinged section 25, held in position by a pintle pin 26 and a swinging key bolt 27 Rotation of the funnel within its holder may be prevented by pins 28, if desired, although such pins are not essential.

Also projecting from the hub 17, in angular relation to the arm 22, is a second arm 29, in which is formed an opening 30, adapted to receive the lower end of a piston rod 31 carried by piston 32 in a cylinder 33 formed in a bracket 34; adjustably carried by the standard 6, the piston being effective for raising and lowering the funnel holder 16 at prede term ned times, as may be desired. For controll ng the movement of the piston 32, the cylinder 33 may be provided with a fluid inlet 35, communicating with the lower end thereof and with a second inlet 36, communicatmg with the upper end. By alternately causing the admission and exhaust of fluid through these connections, the piston and funnel holder may be raised to inoperative position, or lowered into operative position at will.

The positive raising and lowering of the funnel holder and its associated parts, mcluding the funnel 23, constitutes an important feature of the present invention, inasmuch as by raising the funnel to inoperative position, the mold table 2 may be rotated to bring a parison mold into alignment with the funnel, or out of co-operative relation thereto at will. During such movement there is no sliding contact between the lower end of the funnel and the upper ends of the parison molds, and consequently the original characteristics of the corresponding surfacesof these parts may be retained, thereby insuring the desired sealing or fluid tight j omt therebetween when the funnel is lowered.

I have also found it to be extremely deslrable to provide means supplementary to the clamping mechanism 13, whereby the holding of the sections of the parison molds together is insured. This may be effectively accomplished in a construction in which a funnel is periodically raised and lowered, by providing the upper ends of the parison molds 4 with a tapered clamping projection 37 and by forming the lower end of the funnel with an internally tapered annulus 38, adapted to receive the projection 37 and clamp the mold sections tightly together, thereby supplementing in a very effective manner the action of the clamping mechanism 13. It will be understood by those skilled in the art that the length of the funnel and the character istics of the opening 39 therethrough may be varied in accordance with the characteristics of the ware being produced.

After a charge of glass has been delivered through the funnel, it may be desired in known manner to direct air under pressure through the funnel opening 39, to effect a preliminary compacting or shaping operation on the charge. This may be accomplished by providing abracket 40 projecting outwardly from a stationary part of the frame of the machine as shown in Figure 1, carrying a cylinder 41, effective for operating the blow head 42 for lowering it into engagement with the funnel or raising it to inoperative posi tion.

The present apparatus is adapted for use either with feeders eflective for automatically delivering predetermined charges of glass to the successive parison molds, or for use with glass supplied by hand gatherers or punty rods in known manner. In any case, it is desirable to maintain a certain relationship or timing between the operation of the various mechanisms. This relationship may comprise the movement of the tables 2 and 3 a predetermined step, the locking of these tables in a position to which they have been of the mouth forming pin mechanism 10 into the lower end of a parsion mold in position to receive a gather of class, the lowering of the funnel to effect supplement al clamping of the parison mold and to bring the funnel and mold into cooperative engagement, the charging of the parison mold in position at the charging station, and the actuation of the blow head 42. At the completion of a blowing period of predetermined, and preferably of controllable duration, the blow head is raised, the plunger for the mouth forming pin mechanism is lowered, the funnel 23 is raised, the clamping mechanism 13 is released, the locking means for the tables moved out of engagement there with, and the tables moved another step, after which the cycle is repeated.

The characteristics of the funnel and its operating mechanism are such that it is adaptable for use with any standard or spe cial fabricating machines requiring the use of means for serving glass to the molds.

In Figure 6 there is illustrated diagrammatically a portion of the control system by means of which the desired sequence of operations is made possible with a machine illustrated in the drawings. This system may comprise a combined valve and locking pin 43 for the parison mold table and a similar pin 44 for the blow mold table. If both parison and blow molds are carried by a single table, it will be apparent that one of the tables may be omitted, together with its corresponding locking means. These locking pins, as herein illustrated, are operated by a cross head 45 on a piston rod 46, operated by piston 47 in a fluid pressure cylinder 48. By raising the cross head the pins are brought into co-operative locking engagement with their respective tables, while by lowering the cross head the locking engagement is destroyed.

Mounted within the piston rod 46 is a shaft 49, carrying at its upper end a gear 50, adapted to mesh with the operating gears for the respective tables. This shaft may be rotated by a rack bar 51, operated by the piston 52 in the table moving cylinder 53. This cylinder may have 'a suitable controlling valve mechanism 54, by means of which the admission of fluid pressure to, and the exhaust of fluid pressure from the ends of the cylinder may be controlled at will.

Adapted to be operated by the rack bar at predetermined times during its travel is a controlling valve 55, comprising a casing and a plunger, the plunger carrying a projection 56, extending upwardly into a slot 57, formed In the rack bar, whereby the projection and plunger are movedin opposite directions at a predetermined time before the rack bar reaches the end of its travel in different directions. Communicating with the valve 55 1s a connection 58 for fluid under pressure.

With the valve in a posit-ion illustrated in the drawings, fluid pressure passes from the connection 58 into the passage 59 and thus to port 60 in the plunger communicating with opening 61 in the casing, thereby admitting fluid pressure to pipe line 62, and thus to the lower end of the cylinder 48 through the passage 63. At this time the upper end of the cylinder is permitted to exhaust through pipe 64, opening 65 in the valve casing, annular passage 66 around the plunger and port 67 to the atmosphere. When the plunger is in its opposite position, it will be apparent that the connection 62 is opened to exhaust inasmuch as annular passage 68 will, at that time, be in position to permit flow from the opening 61 around the plunger and thence to the atmosphere through opening 69. At

such time the connection 64 will receive fluid under pressure from a connection 58 and passage 59, the transverse passage 70 in the plunger being, at that time, in connection with the port 65 in the casing. It will thus be apparent that the control valve operates in timed relation to the. movement of the mold tables and thereby controls the movement of the locking pins as required.

After the tables have been locked, it is necessary, as hereinbefore briefly referred to,

to direct fluid under pressure to the cylinder 1 12, which controls the clamping mechanism 13. For this purpose, the cylinder 12 has an inlet 71, bonnected by line 72 to a port 73 in" I the casing of the pin valve 43. With the pin valve in looking position, fluid under pressure enters through the port 74, and passes around the pin to the port 73, and thus to the cylinder 12 for moving the mechanism 13 to operative position. At this same time fluid under pressure passes to the lower end of the cylinder 8, through the connection 75, from the line 72, this fluid being effective for raising the mouth forming pin. mechanism 10 into co-operative relation to the parison mold in position at the charging station. At about the same time, fluid under pressure passes from a line 72 to the inlet'86 of the cylinder 33 thereby lowering the funnel 23 into clamping engagement with the mold.

With the parison mold inclosed position and with both the mouth forming pin and the pouring guide in cooperative relation thereto, the mold. is ready to have a charge of glass delivered to it. This delivery, as previously referred to, may be accomplished either by hand or through the medium of a suitable feeder. Where a feeder is utilized, the operations on the charge of glass must, as herein pointed out, be in timed relation to the operation of the feeder including the shears for severingthe charge.

For insuring this result, I provide a valve in the form of a cylinder having a piston 101 therein. One end of the valve is provided with an inlet connection 102 which communicates with the air timer on the feeder. Thus, in predetermined timedrelation to an operation of the feeder, air will be delivered to the connection 102 for raising the piston 101. The opposite end of the valve has a connection 103 with the pipe 64 which communicates with the upper end of the fluid pressure cylinder 48.

The valve 100 has a connection 104 for a source of fluid under pressure, and is provided with exhaust ports 105 and 106. The piston 101 is formed with annular grooves 107 and 108. In Figure 6 the piston is illustrated in the position it occupies just prior to its operation by the feeder. At this time, air under pressure passes from the live air inlet 104 through the groove 108 to the port 109 and thence by pipe 110 to port 91 in a blow' head swinging cylinder 88, thus holding the piston in the full line position illustrate therein. At the same time, air under pressure passes from pipe 110 to the branch 111, to the port 81 in the lower end of the blow head raising and lowering cylinder 41 for holding the blow head in its elevated position.

Upon operation of the feeder for the delivery of a charge of glass to the mold in charging position, air will be delivered to the connection 102 for raising the piston 101 and bringing the groove 107 into registration with the live air inlet 104 and with port 112.

Air under pressure will thus pass through port 112 to line 113, connected to the port 92 in the blow head swinging cylinder 88. This air willbe effective for moving the piston to the right, as viewed in Figure 6, thus ringing port 114 in the piston rod 89 into registration with the passageway 116. At this time, air under pressure will pass through port 114 to pipe 115 connected to a port 76 in the upper end of the blow head raising and lowering cylinder 41. Due to this connection, after the blow head has been swung to o rative position by the cylinder 88, air will e delivered to the lowering cylinder for lowering the blow head into cooperative relation with the mold.

In Figure 8 I have illustrated the connections by means of which the blow head may be swung into and out of alignment with the opening through the pouring guide. This is accomplished by providmg the bracket40 at its outer end with a pin 86 on which the cylinder 41 is pivotally carried.

2 Projecting laterally from the bracket 40 is a pivotal mounting 87 for the cylinder 88, the piston rod 89 having a pivotal connection 90 with the cylinder 41. By reason of this construction, it will be apparent that when fluid is admitted to the cylinder 88 in the manner described to retract the piston rod 89, the blow head will be swung in a clock-wise direction, as viewed more particularly in Figure 8 of-the drawings, while, if fluid is admitted into the cylinder 88 for projecting livered to the cylinders 8, 12, 33 and 41, the

opposite end of each of these cylinders is open to exhaust. This exhaust takes place through connections which will now be described in detail. The cylinder 8 has a second inlet 78, communicating with the line 79 preferably through a controlling valve 80, -by means of which the speed of movement of the mouth forming mechanism may be controlled. The cylinder 12 has a second connection 80 to the pipeline 79, and the cylinder 33 has a connection 35 to the pipe line 79. With the parts in the position shown, the pipe line 79 is 0 en to exhaust through a port 82 in the casing or the pin 44, the pin having a reduced portion bringing the port 82 into communication with port 83 which is open to the atmosphere. The cylinder 41 exhausts at this time through the pipe lll, pipe 110, groove 108, and exhaust port 106.

When the locking pins are moved to their lowerpositions at the conclusion of the blowcylinders connected thereto are permitted to move in the opposite direction.

The lowering of the locking pins is also eflective by reason of fluid through the line 64 and line 103 for moving the piston 101 to its full line position of Figure 6 wherein the swinging cylinder 88 is permitted to exhaust through the port 92, line 113, port-112, groove 107 and exhaust port 105. The rearward movement of the piston rod 89 through the connections previously described, brings the exhaust port 117 therein into communication with the line 115, thereby permitting the cylinder 41 to exhaust through the line 115 to the atmosphere. Carried by the central standard 6 in such manner as to engage the upper end of the upward movement of the blow head under the blowing action exerted therebyis a stop 93 similar in construction to the stop 14, and operating in a manner clearly apparent from Figure 1 of the drawings.

From the foregoing, it will be apparent that the present invention provides a funnel and operating mechanism therefor whereby the funnel may be positively raised and low 'ered in predetermined timed relation to the operation of the other parts, thereby entirely obviating any sliding engagement between the funnel and the successive molds, such as would be efiective for destroying the sealing surfaces. This constitutes one of the advantageous features of construction of the present invention.

Another advantage of the present invention arises from the provision of a pouring guide or funnel, eflective for positively clamping sections of a mold in closed position.

Still another advantage of the present invention arises from the provision of a funnel holder having improved operating and adusting mechanism.

' I claim:

1. In a glass working machine, a plurality of parison molds, a pouring guide for cooperation successively with said molds, fluid pressure means connected to said pouring guide for effecting a vertical movement thereof, supporting means on which said guide is vertically movable, means for adjusting.

said pouring guide toward and from the axis of said supporting means and maintaining the same in adjusted position, and cooperating means carried by said pouring guide and molds for causing the pouring guide to successively and directly clamp the molds against opening movement.

2. In a glass working machine, a plurality of parison molds, a pouring guide for coop eration successively with said molds, fluid pressure means connected to said pouring guide for moving the pouring guide vertically along the axis of the mold with which it is to cooperate, supporting means along which said pouring guide is vertically\movable, and means for adjusting the pouring guide toward or from the axis of said sup-- porting means and maintaining it in adjusted position.

3. In a glass working machine, a plurality of parison molds, means for moving said molds, a mouth forming pin mechanism for co-operation successively with said molds, a pouring guide for co-operation successively with said molds, and fluid pressure means for moving said mouth pin forming mechanism and said pouring guide in opposite directions both to and from a mold in predetermined timed relation to each other and to the movement of said molds.

4. In a glass working machine, a mold table, a plurality of parison molds thereon, a

standard projecting upwardly adjacent the periphery of said table, a pouring guide holder carried by said standard, means for moving said pouring guide holder vertically on and relatively to said standard at predetermined times, and means for radially adjusting the position of the pouring guide relative to the standard and maintainingit in adjusted position.

5. In a glass working machine, a mold table, a plurality of parison molds thereon, a standard projecting upwardly adjacent the periphery of said table, a pouring guide holder carried by said standard,'and means for moving said pouring guide holder vertically on and relatively to said standard at predetermined times, there being means cooperating with said holder :tor adjusting the same laterally and radially, and maintaining it in adjusted position.

6. In a glass working machine, a mold carrier, a plurality of parison molds thereon, fluid pressure means successively operable on said molds for raising the same, fixed means successively cooperating with said molds for limiting the raising movement thereof, and a second fluid pressure operated means effective in oppositionto said first mentioned fluid pressure means for guiding glass charges into the molds and directly clamping the molds against opening movement.

7. In a glass working machine, a plural ty of movable parison molds, a pouring guide adapted to successively cooperate with said molds, means for positively raising and lowering said pouring guide, said pouring guide being efiective in its lower position for clamping the molds against opening movement, and means effective for adjusting the pouring guide in any direction along intersecting axes substantially normal one to the other for changing the path of travel of the pouring guide.

8. In a glass working machine, a movable mold table, means for locking said table against movement at predetermined times, a

pouring guide, means controlled by said lockmg means for operating said pouring guide, table moving means, and means controlled by said table moving means for controlling said locking means.

9. In a glass working machine, a movable mold table, means for locking said table against movement at predetermined times, a. pouring guide, means controlled by sald locking means for positively raising or lowering said pouring guide, table moving means, and means controlled by said table moving means for controlling said locking means.

10. In a glass working machine, a movable mold table, means for locking said table against movement at predetermined times, a pouring guide, means controlled by said locking means for operating said pouring guide,

said pouring guide being provided with mold clamping means, table moving means, and means controlled by said table moving means for controlling said locking means.

11. In a glass working machine, a mold table, a lurality of parison molds thereon, a standar projecting upwardly adjacent the periphery of said table, a pouring guide holder carried by said standard, means for moving said pouring guide holder vertically on said standard at predetermined times, a stop on said standard, a swinging blow head, having a mounting laterally ofl'set with respect to said standard, and means for bringing said blow head into engagement with said stop at predetermined times to limit the upward movement of the blow head.

12. In a glass working machine, a mold table a plurality of parison molds thereon, a

standard projecting upwardly adjacent-the periphery of said table, a pouring guide holder carried by said standard, means for moving said pouring guide holder vertically on said standard at predetermined times, a

stop on said standard, a blow head, having a mounting laterally offset with respect to said standard, and means for effecting movement of said blow head into cooperative relation with said stop at predetermined times to limit the upward movement of the blow head.

13. In a glass working machine, a plurality of parison molds, means for moving said molds to different stations, automatic clamping means effective at one station for urging said molds to closed position, a pouring guide at said station for cooperation with said molds, and means controlled by the movement of said molds for operating said clampin means andsaid pouring uide in timed re ation to a movement of tie molds, said pouring guide being eflective for directly clamping the molds in such closed position against opening movement.

14. In a glass working machine, a plurality of parison molds, means for moving said molds to successive stations, clamping means at one of said stations successively operable on the molds for urgin the same to closed position, a pouring gui e at said station for 60 cooperation successively with said molds, and motive means operable in timed relation to a movement of the molds for operating said clamping means and said pouring guide for successively additionally and directly clamping the molds in such closed position against opening movement.

15. In a glass working machine, a plurality of parsion molds, clamping means common to all of said molds adapted to successively cooperate therewith to move the same to closed position, other means for moving said molds, a mouth forming pin mechanism for cooperation successively with said molds, a pouring guide for cooperation successively with said molds, supplemental clamping means rigidly secured to said pouring guide for holding the molds in closed position, and means for moving said mouth forming pin mechanism and said pouring guide in opposite directions in predetermined timed relation.

16. In a glass working machine, a plurality of movable parison molds, clamping means therefor, pouring guide means for cooperation with said molds, means for positively raising and lowering said pouring guide means, said pouring guide means being effective in lower position for clamping the molds against opening movement, and means for adjusting the pouring guide in any direction in a plane normal to the axis of the opening therethrough and maintaining it in such adjusted position.

17. In a glass working machine, a mold, a swinging blow head for cooperation with said mold, a fixed stop with which said blow head cooperates and below which it is adapted to swlng, and means operable only after the blow-head is in position below said stop for effecting a downward movement of the blowhead. I

18. In a glass working machine, a parison mold, a fixed stop limiting upward movement of said mold, a blow head cooperating with said mold, a second stop limiting upward movement of said blow head, and means effective only after the blow head is in movement limiting position with said stop for effecting downward movement thereof.

19. In a glass working machine, a plurality of parison molds, fluid pressure means for urging said molds to closed position, a pouring guide for cooperation with said molds, means for operating said pouring guide for directly clamping said molds in such closed position against opening movement, means for moving said parison molds to successive stations, and means operable in timed relation to the movement of the parison molds for operating said fluid pressure means and said pouring guide operating means.

20. In a glass workin machine, a plurality of parison molds, flui pressure means for urging said molds to closed position, a pouring guide for cooperation with said molds, means for operating said pouring guide for directly clamping said molds in such closed position against opening movement, said last mentioned means including a fluid pressure operated device, means for moving said pari son molds to successive stations, and means operable only after the molds are in position at such stations for delivering fluid to both said fluid pressure means and said fluid pressure device.

21. In a glass working machine, a plurality of parison molds, fluid pressure operated means for urging said molds into closed position, a pouring guide for cooperation successivel with said molds, means for operatmg sai pouring guide for successively additionally and directly clamping said molds in such closed position against opening movement, means for-moving said parison molds successively to different stations, and means operable in predetermined timed relation to a movement of said molds for delivering fluid to said fluid pressure operated means and for efl'ecting operation of said pouring guide operating means.

22. In a glass working machine, a plurality of parison molds, fluid pressure operated means for urging said molds into closed position, a pouring guide for cooperation successively with said molds, means for operating said pouring guide for successively additionally and directly clamping said molds in such closed position against opening movement, said means including a fluid pressure operated mechanism, means for moving said parison molds to successive stations, and means operable only after the molds have reached said stations for delivering operating fluid to said fluid pressure operating means and said fluid pressure operating mechanism.

23. In a glass working machine, a carrier, a series of molds thereon, a mouth forming pin mechanism for cooperation with said molds, said mechanism including a fluid pressure operated piston, and a blow head mechanism for cooperation with said molds, there being means cooperating with said molds for uniformly positioning the same vertically irrespective of the pressure of said fluid pressure operated piston.

24. In a glass working machine, a carrier, a series of molds thereon, a mouth forming pin mechanism for cooperation with said molds, said mechanism including a fluid pressure operated piston, and a blow head mechanism for cooperation with said molds, there being means preventing the pressure of said fluid pressure operated piston from being transmitted to said blow head, and other means for preventing upward movement of said blow head.

25. In a glass working machine, a mold, fluid pressure operating mechanisms cooperating with opposite ends ofsaid mold, means engaging the mold for preventing displacement of said mold under the influence of one of said mechanisms, and means engaging the other mechanism for preventing the displacement of such other mechanism irrespective of wear in the machine parts. 26. In a glass working machine, a mold, rigid clamping means for said mold movable in a direction axially thereof, means for giving a variable stroke to said clamping means, the extent of said stroke being limited solely by engagement between said mold and clamping means, and means for adjusting said clampingmeans about either of two su stantially normal intersecting axes and maintaining it in adjusted position.

27 In a glass working machine, a plurality' of parison molds, a standard, a funnel carried by said standard for cooperation with said molds, means for operating said funnel, and an eccentric bushing cooperating with said standard for adjusting said funnel radially thereof.

28. In a glass working machine, a mold, fluid pressure operating mechanisms cooperating with opposite ends of said mold, means for preventing displacement of said mold under the influence of one of said mechanisms, and means for preventing the displacement of the other mechanism irrespective of wear in the machine parts, there being means for swinging one of said mechanisms laterally into and out of engagement with said second mentioned means.

29. Ina glass working machine, a mold, a fluid pressure operated mechanism cooperating therewith, means for swinging said mechanism laterally, a stop'adapted to cooperate with said mechanism, and means for operating said mechanism only after it has come into engagement with said stop.

30. In a glass working machine, a mold, a fluid pressure operated mechanism cooperating therewith, means for moving said mechanism laterally, a stop adapted to cooperate therewith, means for operating said mechanism only after it has come into engagement with said stop, a pouring guide, and means for positioning said pouring guide intermediate said mold and said mechanism. I a 109 31. In a. glass working machine, a mold,

a fluid pressure operated mechanism cooperating therewith, means for moving said mechanism laterally, a stop adapted to cooperate therewith, means for operating said 105 mechanism only after it has come into engagement with said stop, a pouring guide, and fluid pressure means for positioning said pouring guide intermediate said mold and said mechanism.

32. In a glass working machine, a mold, a

fluid pressure operated mechanism cooperating therewith, a means for moving said mechanism laterally, a stop adapted to cooperate therewith, means for operating said mechanism only after it has come into engagement with said stop, a pouring guide, and means for positioning said pouring guide intermediate said mold and said mechanism, there being mold clamping means carried by said pouring guide. 33. In a glass working machine, a mold, a fluid pressure operated mechanism coopcrating therewith, means for moving said mechanism laterally, a stop adapted to 00- operate therewith, means for operating said mechanism only after it has come into ongagement with said stop, a pouringguide, and fluid pressure means for positioning said pouring guide intermediate said mold and said mechanism, there being mold clamping means carried by said pouring guide.

34. In a glass working machine, a standard, a mold movable into position adjacent said standard, a plurality of fluid pressure operated mechanisms carried by said stand ard, and stops carried by said standard for cooperation with said mold and one of said mechanisms respectively.

10 35. In a glass working machine, a standard, a mold movable into position adjacent said standard, a plurality of fluid pressure operated mechanisms carried by said standard, and stops carried by said standard for cooperation with said mold and one of said mechanisms respectively, there being means for moving said last mentioned mechanism laterally into and out of cooperative relation with said stop.

36. In a glass working machine, a mold, a

plurality of fluid pressure operated mechanisms operable in a direction axially of said moldand having a stroke in such direction limited by the position of vthe mold, and

clamping means carried by one of said mechanisms, there being a stop,for limiting its displacement under the influence of other of said mechanisms.

In testimony whereof I have hereunto set my hand.

7 AUGUSTUS MARTS CLARK.

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