US1967084A - Ironing press - Google Patents

Description

W. M. EMERY IRONING PRESS July 17, 1934.

Filed May 25, 1932 4 Sheets-Sheet l July 17, 1934. w. M. EMERY IRONING PRESS Filed May 25, 1932 4 Sheets-Sheet 2 //O //4- H5 m W. M. EMERY IRONING PRESS July 17, 1934.

Filed May 25, 1932 4 Sheets-Sheet 3 INVENTOR ||||||Ill|||||||||||.|lI

Patented July 17, I934 UNITED STATES PATENT OFFICE 28 Claims.

My invention relates to ironing or pressing machines of the type utilizing a pressing head and a buck, as pressing elements.

An object of my invention is to provide a press 61h which one or both of the pressing elements moves either towards, or away from the other, or both, under gravity and in which are novel means for actuating, storing and releasing forces to produce this movement.

Another object is to provide a press wherein the relative movements of pressing elements include a short and substantially vertical movement applying pressure, at the same time storing forces to actuate the following movement, a.

substantially vertical separation of the elements automatically followed by an extensive movement of separation under gravity and later, under the control of the operator, a forward movement under gravity bringing the elements one above the other.

Another object is to provide a press with the previously described movement but wherein forces are stored to actuate the remaining movements of the elements during the vertical separation of the elements.

Another object is to provide a press of an exceedingly simple construction wherein the pressing head is separated horizontally from the buck against gravity and later under the control of latching means is releasable to return to the buck under gravity. Y

Another object is to provide pressure, or friction and pressure, between the elements of an ironing press, means to actuate either or both 5 movements with a single mechanism and to provide means to elect whether pressure only or friction and pressure'be applied to the fabrics being pressed.

Further objects will be apparent from the description and claimswhich follow.

These objects are accomplished without provision in the cam or track for a vertical bodily movement of the element supporting means and in this my invention difierentiates from my oopending applications #570,578 and #606,096.

In the drawings,

Figure 1 shows a. view of the right hand end of a press with the base, in part, broken away.

r Fig. 2 shows an enlarged view of the forward end of a track similar to that shown in Fig. l. The track of Fig. 2 the left hand track of the press viewed from the right side while that of Fig. 1 is the right hand track viewed from the right side.

Fig. 3 shows a section cut on line I1I--1II of Fig. 2.

Fig. 4 shows a fragmentary section cut on line IVIV of Fig. 2.

Fig. 5 is a side elevation of the right end of 66 the base showing that portion which was broken away to produce Fig. 1. t

Fig. 6 is a section of a simplified press cut vertically and substantially through the center of the press on the line VI-VI of Fig. 7 thus showing the left hand half, viewed from the right side.

Fig. 7 is a. fragmentary view in front elevation showing a novel means for the attachment of the operating lever. The lever is cut on line VII--VII of Fig. 6. v

Fig. 8 shows a section cut vertically on line VIIIVIII of Fig. 10 through the center of a press end and shows the left hand half viewed from the right side.

Fig. 9 shows the left hand end of a press as viewed from the right side. It is similar to Fig. 8, except for the omission of the pressure applying means.

Fig. 10 is a bottom view of the actuating mechanism of Fig. 8.

In Figs. 1 to 5 is shown a press including a base 12, support 13, and a buck 14 and an inclinable channel track 16, supported by a horizontal shaft 15, journaled in base 12. Movably mounted in track 16 are two rollers 17 and 18 suuporting a c shaped support 19 from which the pressing head 20 is hung.

Mechanism is arranged between the pressing head 20 and the support 19 to raise and lower the pressing head and apply pressure between the pressing elements. This mechanism includes a horizontal radius arm 22 pivotally connected at one end to the pressing head at 23 and at its other end to the support 19; and a toggle joint 24 possessing members 25 and 26, member 25 being pivotally connected to support 19 at 27 and toggle member 26 being pivotally connected with the pressing head at 23. The toggle members 25 and 26 are interconnected at 29.

To operate toggle 24, a connecting link 31 is joined to it at 29. An eccentric 32 is journaled in support 19 at 28'and pivotally attached to link 31. A manual lever 33 actuates the eccentric 32 and in turn operates the toggle mechanism 24.

It should be understood that parts 15 to 19 and 22 to 27 and 29, 31, 32 and if desired 33 are duplicated on the left and right sides of the machine. These duplicate mechanisms are interconnected 110 by suitable means such as 32 which actually is a flattened rod eccentrically mounted.

When the operating lever 33 is lowered the pressing head 20 is also lowered. Once started the head drops under gravity until it contacts with the buck at which time it registers exactly with the edges of the buck. The further movement of lever 33 applies pressure. The structure previously described is substantially rigid and so when pressure, is applied, because pivot 23 is forward of pivot shaft 15, the track 16 isv tipped to incline backward and downwardly.

Fig. 5 shows shaft 15 extending through base 12 and any clockwise turning movement of said shaft is resisted by arm 40 attached to it and spring 41 which is anchored to base 12 at 42. Members 40 to 42 are duplicated on each side of the track but are not directly interconnected as herein shown. The springs 41 and the attendant mechanism give resiliencyto the framework applying pressure. Should abnormally thick pieces be pressed or any other contactual variation occur between the elements then the springs will be abnormally extended and the lever 33 can be moved to its normal full pressure position without unduly straining the framework.

When the track 16 tips forwardly and downwarly one of two things occurs. If the roller 17 or for that matter any part of support 19 is prevented from moving forward to the end of track 16, then the parts upon operation of handle 33 will finally take the position shown in broken lines in Fig. 1, thus causing the face of the pressing head 20 to slide over the buck 14 causing an ironing friction therebetween.

' If however roller 17 or support 19 are not prevented from moving forward to the end of the track 16, then upon operation of handle 33 roller 17 will assume its most forward position shown in broken lines in Figs. 1 and 2 and there will be no sliding friction between the shoe and the buck.

A simple mechanism to permit the operator to select the movement desired is illustrated in Fig.

4, in which pin 45 is shown slidable in and out of a position in track 16 to obstruct, or free, roller 17. Notches 46 and 47, plunger 48, spring 49 and compressing set screw 50 form a means to hold the pin 45 in the selected position. Should pin 45 be withdrawn'from its obstructing position by the operator, then the pressing head comes to rest in its correct forward position for registration with the buck by contact with the permanent stop 51. However when the track 16 is tipped, the front end of the support 19 is raised suil'iciently to free itself from the stop 51. The rollers and support 19 their normally move forward in track 16 eliminatingfrictional sliding between the pressing elements because there is less resistance to the forward movement of the C support on the rollers 17 and 18 than to the friction of sliding the pressing head backwards on the buck.

This novel feature is especially valuablesince it is preferable to obtain a high polish on some pieces to be pressed or ironed while on others a dull finish is preferred. Heretofore no machine of this type has come to the attention of the applicant with selective control means practical for home operation with its requirement for frequent change of control and for a mechanism so simple as to be operated conveniently by the most unskilled of operators.

Another novel feature of the applicant's structure is that the frictional movement is nonreversing, always in the same direction and occurs only in the first part of the stroke. This is valuable in ironing starched pieces which so frequently stick to one or both of the elements and might be badly mussed or creased by an additional frictional movement when the pressure is being released after the complete application of heat and pressure.

When the track 16 is tipped to incline backwards and downwardly, a latch 52 pivotally attached to the forward end of the track 16, engages under gravity a projection 53 from base 12.

When the pressure between the elements is released by the operation of lever 33 and as soon as the operator releases the manual lever 33, the pressing head automatically travels rearwardly under gravity.

Operating in a groove in latch 52 is a pin 54 projecting from a radius arm 55 which is fixedly mounted on a rod 56 which is turnable by control handle 57.

When the operator desires the pressing head to come forward for registration with the buck, a downward movement of control handle 57, see Fig. 1, will disengage latch 52 from projection 53 and the track 16 will tip forward under the stored energy in springs 41 see Fig. 5. This lifts the pressing head to a similar position as that shown in broken lines in Fig. 6, and causes it to travel forward under gravity until its supporting structure touches obstacle 51 as described.

Fig. 6 shows a simplified form of my press including a base 62, a telescoping support 63, formed by two members, one member 64 being stationary and attached to the base 62, and the other a movable member 65 attached to and supporting a buck 66, a toggle joint composed of one toggle member 67 pivotally attached to the movable member 65 of the telescoping support 63 and another toggle member 69 pivotally supported by shaft 70 journaled in base 62. Integral with toggle member 69 is a saddle portion 71 which seats an operating lever handle 72 but renders the lever handle free to return to its original or up position independently of the toggle. Lever 72 is freely mounted on shaft 70 by mounting member 73. A torsional spring 68, one end of which isfixed to the base 62 and the other end of which is anchored in member 73, is so arranged as to cause lever 72 to normally assume the up position as shown in full lines..

The toggle joint formed of links 67 and 69 is so arranged that it never completely straightens to form an absolute straight line. Latching means is accordingly provided to prevent the flexing of the toggle and the lowering of the buck when the lever 72 is released by the operator. A latch 74, pivotally mounted as to base 62, is arranged to normally engage the saddle portion 71 of toggle member 69 when the lever 72 is depressed to the position shown in broken lines.

Fixed to the base 62 is a channel track 75. This track is permanently downwardly inclined in a forward direction and in it operate two rollers 76 and 77 which support a C shaped support 78 to which the pressing head 79 is pivotally attached at 80.

On the lower edge of the C support 78 are formed teeth 81. A latch 82 pivotally mounted as to base 62 is arranged to normally engage these teeth 81 when the pressing head has been moved backwards a predetermined distance.

A link 83 joins latch 82 and latch 74. An elongated hole in link 83 provides for limited free movement. A control handle 84 passes through an opening in base 62 and connects with latch 74. When the control handle is pushed in both latches are released.

Starting from the position shown in full lines in Fig. 6, control handle 84 is pushed by the operator causing latch 74 to release saddle portion 71 of toggle member 69 which permits the buck 66 to drop under gravity. The toggle formed by links 67 and 69 assumes the position shown in dotted lines and the lever 72 remains unmoved from its position shown in full lines.

By manual or any other suitable means the presser head is moved backwards to the position shown in broken lines. This is about a 16 inch movement and the inventor believes that it will save considerable labor and eliminate this 16" reach involved, to give the presser head handle 85 a little push and then let its momentum carry it to a position where it will be caught by latch 82.

When the operator is ready for the head to come forward again, instead of reaching over the machine to pull the head forward manually, the operator pushes the control handle 84 again, and the latch 82 releases support 78 wherefore the presser head 79 rolls forward under gravity until it is above the buck 66.

The lever 72 may then be depressed by the op-. erator to the position shown in broken lines thus raising and pressing the buck 66 against pressing head 79. At this point the saddle portion 71 of 69 is caught .by latch 74. The lever 72, when released by the operator, is returned to its normal position shown in full lines by spring 68, see Fig. 7.

Figs. 8, 9 to 10 show a modified form of a press utilizing another method of obtaining much the same horizontal movement of the presser head as shown in Fig. 1, but with a cam or track and the moving pivot of a radius arm to determine the movement of the head. This general construction has been detailed in my co-pending application #606,096. Figs. 8 to 10 show a table base 87, and a radius arm 88 fixed to rod 89 the ends of which are journaled in the table base 87. The other end of radius arm 88 is pivotally connected to the lower end of a support arm 90 which, through a pivotal connection at its upper end, supports the pressing head 91. Intermediate of the ends of support arm 90 is arod 93 on which a roller 92 is mounted. Roller 92 operates in a cam or track 94 which is so generated as to produce in conjunction with the radius arm 88 the desired horizontal gravity movements of the presser head 91.

In Fig. 9, the cam or track 941s clearly shown pivotally mounted to the base 87 by pivot 95. The piece 94 includes the cam or track portion, the forward part of whichincludes a hook 96 to prevent the roller from being lifted out of the cam or track while in the forward position, and an arm 97 to which is attached a spring 98 which is anchored to the table base 87 and resists any tendency of the track or cam 94 to tip or turn clockwise. A latch 99 is fixed to a rod 100 which is journaled in table base 87. 'The latch 99 is arranged to normally engage arm 97 under gravity and prevent its counter clockwise movement under the action of spring 98. As an integral part of latch 99 is a control handle 101.

A stop 102 is fixedly attached to table base 87 to limit the counter clockwise movement of the cam or track and to provide for a rare-stressed condition of spring 98.

The parts 88 to 90, 92, 94 to 99 and 102 are duplicated on the right and left hand sides of the press and are interconnected by the presser head 91 and r9ds89, 93 and 100.

Means to provide pressure and to actuate the mechanism, as shown in Figs. 8 to 10 include a telescoping support composed of a stationary member 105 attached to table base 87, a telescoping member 106 attached to and supporting buck 107, and a toggle joint composed of a pair of parallel arms 108 acting as a unit, pivotally connected with the other toggle member arm 109 at one end and pivotally connected to the telescop ing member 106 at the other end.

In the center portion, arm 109 is pivotally connected to a frame casting 110 (Fig. 10) which casting is fixed to the table base 87 by 6 screws. A spring 113 is attached at one end to arms 108 near their point of pivotal connection with arm 109 and is adjustably attached at the other end to the frame casting 110 by means of a screw eye 114 and wing nut 115. This spring pulls at right angles to the toggle joint when the toggle is in a straight line dead center and tends to take this position normally, establishing the pressure by raising the buck against the shoe. When the buck is lowered to the position shown in dotted lines the spring exerts only enough lifting force on the buck to slightly more than counter balance its weight, due to the change in the angular relationship of the parts.

To apply forces against the spring to lower the buck a pair of connecting arms 116 acting as a unit are pivotally connected to an extension of toggle arm 109 and to a lever member 117 which is pivotally connected to the frame casting 110. An operating arm 118 is fixed to the lever mem her 117. Pressing down on the operating arm 118 applies forces to lower the buck 107 and works against the spring 113. When fully depressed the parts take the position shown in dotted lines and a latch 119 pivotally mounted in the frame casting 110 tends under gravity to engage a portion of arm 109 preventing its return to the full line position under the forces of the spring 113 when the operating handle 118 is released by the operator. A portion 120' of latch 119 is extended to contact with rod 93. When the pressing head 91 comes into position over the buck 107 rod 93 contacts with the extended portion 120 of latch 119 thereby releasing the latch and permitting the spring to automatically raise the buck and apply the pressure.

Starting with the position shown in full lines in Fig: 8, the operating handle is depressed to the position shown in broken lines and accordingly the toggle is flexed, the spring 113 is extended, the buck 107.is lowered and latch 119 engages toggle member 109. As soon as the friction between the pressing elements has been eliminated by their separation, the pressing head and its supports automaticaHy move backwards under gravity to the position shown in broken lines. This is due to the curve of the cam track 94 which is so generated as to cause the center of gravity of these moving parts to move backwards on a slightly inclined plane or slightly curved line. (The accuracy of the curve shown in the drawings is only approximate and is based on the assumption that the center of gravity is near the point of suspension of the pressing head which cannot be assumed without test but it is suflicient to exemplify the mechanical principles involved.)

When the operator desires the pressing head to return to a positioniover the buck it may be accomplished by lifting the control handle 101 thereby releasing arm 97. Spring 98 turns cm or track94 counter clockwise until contact is made between arm 97 and stop 102. This tips track or cam 94 and raises the pressing head and ing elements;

causes it to move forward under gravity. When it is approximately over the buck, rod 93 releases latch 119 and spring 113 straightens the toggle and lifts the buck to apply pressure against the presser head.- In the final part of this movement the presser head is raised slightly and this raises the support 90 and slightly turns the radius arm 88. Roller 92 contacts with hook 96 and due to the fact that pivot point 95 is slightly behind the point of pivotal suspension of the pressing head, the cam or track is tipped slightly backwards or clockwise and arm 97 is raised extending spring 98 until arm 97 is caught by latch 99.

Springs 98 left and right exert an united force equal to the desired pressure. Should there be an extra thickness of fabric under either side or both, springs 98 will just extend themselves a little further thereby compensating for the variation in thickness.

The applicant has attempted to so arrange the centers and the levers as to make the pressure required to move the operating handle 118 uniform at all points of the stroke. When the pressure of spring 113 is at right angles to the toggle links 108 and 109 then levermember 117 and link 116 are in a position close to the dead center relationship to compensate with each other to make the stroke uniform.

In the various modifications illustrated here the applicant does not want to be limited to any one machine but wishes to include any combination of the parts or features shown, for instance, the pressure mechanism shown in Fig. i may be substituted for the pressure mechanism shown in Fig. 8 or the means for selecting friction and the broad interpretation of his claims. For example, in those cases where the claims which follow are readable, when broadly interpreted, upon motorized as well as manually operated presses, although motorized structures may not be specifically mentioned, the applicant intends all such structures to be within the rightful scope of his claims.

The term horizontal is used herein in possibly a broader sense than that indicated in standard dictionaries, because of the lack of any other term known to the applicant. Herein it refers to a curved or straight line or plane not necessarily level, altho including such a sense, and also including a line-or plane inclined to a level planesuflicient to produce a substantial acceleration under gravity.

In the claims the term configurative potential energy is used. It may be defined as potential energy resulting from the distortion or temporary change of shape of resilient bodies. For example, the elongation of spring 98 or spring 41 when full pressure is applied between the press- The term positional potential energy may be defined as potential energy resulting from the raising or lifting of an object or anything possessing weight and accordingly subject of gravitation. For example, when the buck 61 is raised from the position shown in broken lines to that shown in full lines in Fig. 6.

against the action of said stored energy, control means for said latching means, operative means separate and distinct from the heretofore mentioned means, to separate the elements vertically and to apply pressure between the elements.

2. In a press having a buck and a pressing head, a support for the buck, a track, a support for the pressing head operable in said track under a force due to stored energy to move said pressing head towards and away from said buck, means to determine the direction of travel of said presser head, means to apply pressure between the presser head and the buck and means to store said energy simultaneously with said application of pressure.

3. In a press, utilizing a shoe and a buck as pressing elements, a track, a support for one of the elements operable in said track under a force due to stored energy to move said element towards and away from the other, means to selectively incline said cam or track to determine the direction of travel of said movable support, means to apply pressure between the elements and means to store said energy simultaneously with the application of pressure.

4. In a press, pressing elements, means to move said elements relatively under a force due to stored energy, means to apply pressure between the elements and means to store said stored energy only at such times as the elements are in contact and additional pressure is being applied.

5. In a press, pressing elements, means .to move one of said elements substantially rectilinearly' towards and away one from the other under a force due to stored energy, means to apply pressure between the elements and means to store said energy simultaneously with the application of said pressure.

6. In a press, pressing elements positioned one above the other, supports for said elements, means to move said elements relatively under a force due to stored energy, means interposed be tween the top element and its support to apply pressure between the elements and means to store the aforementioned energy simultaneously with the application of said pressure.

7. In a press utilizing a pressing head and a buck positioned one above the other as pressing elements, means to relatively move the elements to apply and relieve pressure between them, mechanical means to enable relative movement of the elements to uncover the buck and to return the elements to their one-above-the-other position, a lever mounted above and operably associated with the head to apply, through leverage, forces to both of said means to effect all of said movements. I

8. In a press utilizing a buck and a pressing head, as pressing elements a fixedly mounted track inclined downwardly to produce movement of the head towards the buck, means to mount the pressing head for movement on said incline, latch means to engage the parts movable on said incline when the pressing head is in a position away from the buck and means to release said latch.

9. In a press utilizing a buck and. a pressing Mil head as pressing elements, means to enable the movement of one of said elements horizontally under a force due to stored energy towards the other, latching means tohold in restraint said element against the action of said force, unitary control means for said latching means and for the control of the vertical separation of the elements, and means to force the eelments together. 10. In a press, utilizing a substantially level buck and a pressing head as pressing and ironing elements, means to effectuate an extensive horizontal movement to move one of said elements towards and'away from the other, means to move one of said elements frictionally against the other substantially parallel to the previously described movement, means to apply pressure between the elements and means to prevent said frictional movement.

11. In a press, a buck and a pressing head constituting pressing elements, means to mount one element for a substantially horizontal movement towards and away from the other, means to apply pressure to the elements and incidentally thereto to frictionally slide one element against the other in a direction substantially parallel to the first mentioned movement and means operable at the will of the operator to enable sufficient movement of the first mentioned means to take place at the time of the application of pressure to prevent the said frictional sliding movement.

12. In a press, a buck and a pressing head constituting pressing elements, support means for said elements, means to apply and relieve pressure between said elements and incident thereto to slide one element frictionally on the other when said support means are held rigid against any movement parallel to said frictional movement and means operable at the will of the operator to allow sufficient movement of the support means parallel to the forces tending to produce the sliding movement to prevent said frictional sliding movement.

13. In a press, a buck and a pressing head constituting pressing elements, means to support the pressing elements, members to relatively and bodily move one of the pressing elements to the other simultaneously at different angles, one movement being essentially a pressure movement and the other essentially a frictional or smoothing movement, means to actuate said member to produce said movements and selective .means to effect or prevent the frictional or smoothing movement including blocking means interposable or removable in a direction at an angle to the di-. rection of the frictional movement to block and unblock any movement of the first mentioned means parallel to the frictional movement.

14. In a press utilizing a pressing head and a buck as pressing and ironing elements, a manually operated handle and means associated therewith to move one of said elements to apply pressure against the other and incidental thereto to also move one of said elements frictionally against the other, said operating handle being operable 'at the time of the frictional movement in the general direction of said frictional movement and being mounted with the anchorage of said handle movable bodily in the general direction that the element moves in efiecting the frictional movement eifectuating a resultant force from the operators effort to actuate said handle to directly facilitate the frictional movement.

15: In a press utilizing a buck and a pressing head as pressing elements, toggle means to apply pressure between said elements, spring means acting on said toggle means to provide storedof said elements relative to the other, means to store configurative potential energy in the moving means while the elements are in contact and pressure is being applied and to convert said stored energy into positional potential energy in the movable element, and control means to effect said conversion when the elements are separated so as to enable said movable pressing element to move under the force of gravity towards the other elements.

17. In a pressing and ironing machine, two cooperating pressing elements, a resiliently construc;ed frame to support said elements, means to force one element into pressing relationship against the other, means operative incidentally to'the operation of said means to slide one element frictionally against the other, and a single control means to render inoperative the last mentioned means without affecting the operability of the first mentioned means.

18. In a pressing and ironing machine, two cooperating pressing elements, one ,above the other, a resiliently constructed frame to support said elements, manually actuated means to force one element into pressing relationship against the other mounted above the top element and means operative incidental to the operation of the last mentioned means to slide one element frictionally against the other, and a single means to render inoperative the last mentioned means without affecting the operability of the first mentioned means.

19. In a pressing and ironing machine, two cooperating pressing elements, a resiliently constructed frame to link and support said elements, means to force one element downwardly towards the other into pressing relationship with the other and means operative incidental to the operation of said pressure applying means to slide one element transversely across the other and a single means to render inoperative the last mentioned means without affecting the operability of the first mentioned means.

20. In a pressing and ironing machine, two substantially horizontal cooperating pressing elements, a resiliently constructed frame to link the said elements, one manually actuated operating lever to apply forces to press the elements substantially perpendicularly together and also to slide one element transversely across the other and a single means operable at the will of the operator to concentrate all the manually applied forces to effect the pressure between the elements.

21. In a pressing and ironing machine, two pressing elements cooperably mounted one above the other, a supporting framework possessing a slight flexibility resiliently interconnecting the said elements, one manual operating lever mounted substantially above the upper element and operative to apply manual forces to press the elements together and also to slide one element means to apply said forces to efiect said pressure with rapidly increasing mechanical advantage.

22. In a press having a buck and a pressing head, means to enable movement of the head from a position away from the buck to a position over the buck under a force due to stored energy, means to apply pressure betweenthe elements and means to store said stored energy simultaneously with said application of pressure.

23. In a press utilizing a buck and a pressing head as pressing elements, means mounting said pressing head for an extensive movement to a position over the buck, means to store energy to raise the buck to the pressing head, latching means to restrain said energy storing means and means to automatically release said latching means when the pressing head is moved to a pressing position over the buck.

24. In a press utilizing a buck and a pressing head as pressing elements, means to mount one of said elements for movement from a widely separated position to a position wherein one element is above and on top of the other, means to move one element vertically towards the other applying pressure between the elements including a toggle, and spring means acting on said toggle to at least in a substantial part apply the pressure.

25. In a press utilizing a buck and a pressing head as pressing elements, means to mount the head for movement from a widely separated position to a position over the. buck, said means including a support arm close to said head, means to mount the buck and means located between the said support arm and the means to mount the buck to move one element vertically towards the other applying pressure independently of any movement of the said support arm and a spring to apply at least a substantial part of said pressure under stored energy.

26. In a press utilizing a buck and a pressing head as pressing elements, means to mount the head for a movement from a position away from' the buck, transversely across and above the buck to a position over the buck, means to move one of said elements towards the other applying pressure and a spring operative to at least in a substantial part apply said pressure.

27. In a press utilizing a buck and a pressing head as pressing elements, means to mount oneof said elements for 'a large movement to bring one element near to the other, and a mechanism, the movement of which in one direction stores energy, and the movement of which in the opposite direction under force due to said stored energy eifects a small movement of one of the elements towards the other applying pressure between the elements in excess of the weight of the moving parts. i

28. In a press, utilizing a buck and a pressing head as pressing elements, means to mount one of said elements for a large movement to bring one element near to the other, a mechanism, the movement of which in one direction stores configurative potential energy and the movement of which in the opposite direction under force due to said stored energy efiects a small movement of one element towards the other applying pressure between the elements, and means to automatically initiate the said small movement under said stored energy as soon as the elements assume a predetermined position near to each other.

WM. M.

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