US1070729A

US1070729A - Press.

Info

Publication number: US1070729A
Authority: US
Inventors: Daniel N Prime; Ernest Ashton
Original assignee: United Shoe Machinery Co AB
Current assignee: USM Ltd; United Shoe Machinery Co AB
Priority date: 1907-09-16
Filing date: 1907-09-16
Publication date: 1913-08-19
Anticipated expiration: 1930-08-19

Description

D. N. PRIME & E. ASHTON.

PRESS. APPLICATION FILED SEPT. 16, 1907. I 1,070,729. Patented Aug.19, 1913.

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' 1). N. PRIME & E. ASHTON.

' PRESS.

APPLIQATION IILED SEPT. 16, 1907. 1,070,729; Patented Aug. 19, 1913.

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PRESS. APPLICATION FILED SEPT. 16, 1907. V

Patentd Aug. 19, 1913.

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PRESS.

APPLICATION FILED SEPT. 16, 1907.

Patented Aug.19,1913.

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D. N. PRIME & E. ASHTON.

PRESS.

APPLICATION TILED SEPT. 16, 1907.

Patented Aug. 19, 1913.

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DANIEL N. PRIME, OF LYNN, AND ERNEST ASHTON, OF SWAMPSCOTT, MASSACHTL SETTS, ASSIGNORS TO UNITED SHOE MACHINERY COMPANY, OF PATERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

PRESS.

Specification of Letters Patent.

Patented Aug. 19,1913.

Application filed September 16, 1907. Serial No. 393,196.

To all whom it may concern lie it known that we, DANIEL N. PRIME and Ennns'r rrsirron, citizens of the United States, residing at Lynn and Swampscott, respectively, in the county of and Commonwealth of lidassachusetts, have invented certain Improvements in Presses, of which the following description, in connection. with the accompanying drawings, is a specification, like reference cluiracters on the drawings indicating like parts in the several figures.

[if his invention relates to presses and while many features of the invention are applicable to presses in general which may be used for many purposes, the invention is herein, for the purpose of explanation, shown as embodied in a press adapted for use in dieing-out sheet material.

in important feature of the invention consists in providing a plurality of means for relatively moving the cooperating pressure applying members of the press, which means is so constructed and arranged that the degree of pressure applied may be controlled. Preferably and as herein shown, the arrangement is such that the operator can render one or another of said actuating means operative or render a plurality of them operative at the same time to cause pressure to be applied. in practice the power required to be applied by a press \"ar' according to the work to be done at a particular operation. For example, in a dieing-out machine the force with which be actuated varies with the size of the dies, the kind of stock, and the thickness of the stock. No advantage is gained by the use of force greatly in excess of that needed and disadvantages sometimes result in addition to the waste of power. in accordance with the illustrated embodiment of this feature of "the invention the operator, having in mind the particular work in the machine, enabled in starting the machine to select or to control the operating mechanism. according to the force required. As shown, a plurality of operating mechanisms adapted to apply different forces are so arranged that either one or another may be started alone for operating the machine, or a plurality of them may be started. to act together. Preferably the operating mechanisms employed will be fluid-actuated motors which are herein shown as two cylinders of different diameters bot-h connected to .the movable pressure-applying member and arranged so that either can operate alone or both can work together. By this arrangement three different pressures may be obtained. The motors are controlled by separate starting means which extend into convenient position for the operator to engage them and are arranged so that both can be actuated at the same time when desired. The fluid-operated motors have the advantage that a predetermined force, dependent upon the fluid pressure and the size of the cylinder, may be obtained and applied to the work independent of thickness of the work or the height of the dies.

An important feature of the invention consists in a construction of the means for supporting the presser block or platen whereby the presser block may be brought into operative position over a movable die wherever located on the bed and wherein provision is preferably made for movement of the presser block over the bed in different directions. Preferably, and as herein shown, the means for supporting the presser block, or the presser block carrier, is in the form of a radial arm which is arranged to swing over the bed in a plane parallel there with. The swinging carrier will, for convenience, be herein frequently referred to as a radial arm. This term is used, however, for the purpose of identification and is not to be understood as implying a limitation. Preferably also provision will be made for a radial movement of the presser block with respect to the axis about which the swinging carrier moves, so that by a combination of the swinging and radial movements the presser block may be positioned over any part of the working area of the bed within the sweep of the radial arm. The provision of aconstruction in which the presser block or platen is arranged for both angular and radial movement over the bed is especially important when, as herein shown, the dimensions of the pressure face of the presser block are less than the corresponding dimensions of the bed and the ma chine is to be used with a die which is freely movable over the bed.

Another feature of the invention consists in the arrangement of the mechanism for controlling the motors. The presser block, which is movable lengthwise of the radial arm, is provided with a handle by means of which it is shifted upon the arm and by means of which the arm is shifted over the table. The devices for controlling the motors include triggers or finger-operated members arranged upon the presser block and in such relation to the handle that they may be manipulated by the fingers of the hand which grasps the handle. By this arrangement the operator may with one hand-as, for example, his left hand-position the presser block over the desired portion of the work and then start the motors with the fingers of the same hand. This arrangement allows the operator to have his other hand free for manipulating the work or the die in case a movable die is employed. A valuable feature of this construction is found in a movable connection which is provided between the finger-operated members and the other portions of the motor controlling devices, whereby said devices may be actuated while the presser and the fingeroperated members occupy different relations to the other portions of the connections. As shown, the finger-operated devices include crank arms which move with the presser block and are slidingly connected with shafts carried by the radial arm.

In the use of the machine for such work as cutting shoe upper stock, for example, in which it is desirable to out different parts of the upper from portions of the stock diftering in qualities, it is desirable that the operator may have unobstructed light upon the stock lying upon the working area of the bed, or the portion within the range of the presser block, in order that he may judge of the quality of different portions of the leather. Having this condition in mind the present machine has been arranged as above described with the presser block carrier in the form of a radial arm mounted to swing over the cutting bed in order that the light upon the work shall be obstructed as little as may be. Also with this object in mind the post upon which the radial arm is mounted is arranged at one side of the bed and preferably at the rear left-hand corner of the bed, or the rear left-hand corner of the working area of the bed which the radial. arm is intended to cover. Preferably the machine will be set up with the back and right-hand end of the table toward the light. These provisions for obtaining unobstructed light upon the work are believed to be valuable characteristics of the invention.

For the purpose of extending the size of the cutting bed to take large sides of leather without providing a radial arm of too great length for convenience or necessitating the use of a portion of the bed upon which the light will be obstructed by the post and the radial arm the bed is arranged for movement to present a plurality of working areas thereof in the described relation to the post. Preferably and as herein shown, means,

'which is adapted to be rendered operative by the workman, is provided for effecting the movement of the bed from one working position toward another. As herein shown, this means comprises a fluid-operated motor which is controlled by a lever which is to be shifted to one side of a central position for starting the motor to move the bed in one direction and to be shifted to the other side for reversely moving the bed. Provision is made for automatically checking and then stopping the table at the end of its traverse in case the operator neglects to do so. To this end a stop is arranged to offer a progressively increasing resistance to the ad vance of the bed as it approaches the end of its way. This stop is operatively connected with the controlling lever and as the bed reaches the limit of its traverse the stop automatically shifts the lever to stop the motor. A spring is arranged to hold the controlling lever normally in its central position, but in the event that the momentum of the bed causes the stop to throw the lever beyond its neutral position and starts the motor for moving the bed in the reverse direction, the spring immediately centers the lever again and stops the motor. The provisions described by which the bed is arranged for movement to present different working areas at different times and by which the bed is actuated as described constitute useful features of the invention.

Another feature of the invention consists in a novel arrangement of stop devices for checking the swinging movement of the radial arm. In the illustrated construction the arm is provided with stop shoulders between which extends one arm of a pivoted bar, the shoulders being spaced far enough apart to allow for the angle of movementthat. the radial arm is to have. The rear end of the pivoted bar is positioned between two spring buffers which are shown as spring-pressed plungers having inclined heads. Beyond these yielding buffers are arranged rigid stops which positively check the movement of the radial arm in case the momentum of the arm carries it over the buffers.

It is contemplated that in the use of the machine for dieingout stock a dull or blunt-edged die will be used to out the stock and with this die will be employed a bed having a hard metal face, the term hard. metal being used to distinguish from such metal as lead, which would be indented and roughened by the pressure applied to the die in cutting the stock. The die may be a double-edged, reversible die, as shown in the drawings, and the presser block will in that case preferably be provided with a hard metal face to engage the upper edge of the die for forcing the die through the stock supported by the cutting bed. This die is not herein specifically claimed nor is any claim made in this application to the combination of a blunt-edged, reversible die with a cutting bed and a presser block having hard metal faces for engaging the die in the cutting operation. This subject-matter is covered by another application, Serial No. 393,195, filed Sept. 16, 1907, for Letters Patent for improvements in cutting apparatus.

These and other features of the invention, including certain details of construction and combinations of parts, will be hereinafter described and pointed out in the claims.

Referring to the accompanying drawings which represent a preferred form of our inventionl igure 1 is a side elevation; Fig. 2 is a front elevation; Fig. 3 is a broken, vertical section through the pistons and cylinders for actuating the radial arm, taken on the line 33 of Fig. 2; Fig. 4: is a perspective view of the connections between the triggers and the valves actuated thereby; Fig. 5 is a plan view showing the mechanism for operating the cutting table, the radial arm being indicated in broken lines; Fig. 6 is a perspective view of a die of the type hereinabove referred to. I

The base or frame 2 of the machine, which is designed to rest upon the floor, supports a table or bed 3, which may be of any suitable construction, but which will preferably be formed as hereinafter more particularly described. Rising from the base are upright arms 4, a which are joined at their upper ends to a bearing 5 in vertical alinement with a bearing formed at 6 in the base. In these hearings is arranged a hollow shaft 8 and between collars 10 on that shaft is mounted to turn the hub 12 from which projects radially an arm 15, herein referred to as the radial arm. This arm carries the member which cooperates with the bed for applying pressure to the stock interposed between said parts, or to a die 21 which is located upon the stock, and this member is shown as a presser block 10 having a contact plate 18 securedto its lower face at 20 for universal tipping movement. This connection permits the contact plate to adjust itself automatically into parallelism with the cutting bed or into such other position as the interposed stock or dies may require.

As hercinabove suggested the die used with this machine may be a double edged reversible die, as shown especially in Fig. 6 of the drawings, this die being described more fully in the'co-pending application of Daniel N. Prime, Serial No. 393,195, filed Sept. 16, 1907. The presser block is shown as connected with the ""adial arm for movement lengthwise thereof and is formed with guides to engage ribs 22 formed on the sides of the arm. The sides of the presser block extend upwardly above the ribs as appears in Fig. 2 and are formed with a runway to receive a series of balls or rollers, as shown in Fig. 1, upon which the weight of the block rests when the block is not in contact with the work. This construction renders the block easily movable on the ra dial arm for adjusting it into different positions over the bed.

The radial arm and the presser block are actuated vertically for applying pressure to work upon the bed by endwise movement of the shaft 8. This shaft forms or is operatively connected with the piston rod of a fluid-operated motor which comprises the cylinder 25 in which works the piston head 26. A valve rod is movable endwise in the cylinder head and is arranged to act during its stroke to the left, see Fig. 3, closing the exhaust port 32 and then opening the inlet 3% to which air under pressure is supplied from the pipe 37. This rod is formed at one end with rack teeth which are engaged by teeth on the upper end of a shaft The shaft is also toothed at its lower portion and is engaged by rack teeth. on a slide rod 36 that is connected by a bell crank 38 with a rod 410 that extends up wardly through the cylinder and the hollow shaft or piston rod 8. The upper headed end of this rod is engaged by the forked end of a lever -12 which is mounted on a post rising from the radial arm 15. This lever is connected at its outer end by a link 43 with a crank or arm 4st on a rod 15, which is mounted in the radial arm 15 and extends through bearings or bosses which are formed on the upper side of the presser block 16 and extend into a length wise recess in the lower face of the arm. This rod is provided with a keyway 18 in which is fitted to slide a key carried by the hub of a crank arm that is connected to the vertically movable rod 59 which is guided in the presser block 16. The rod 59 has a stud 54 that is engaged by an incline on the lower face of a trigger or slide 55 which is normally held by a spring 53 with the low part of the incline against the stud. The trigger has a finger piece which is located adjacent to the handle 59 of the presser block in such position that the operator may pull the trigger with a. finger of the hand that grasps the handle 59. By thus pulling the trigger outwardly, after having positioned the presser block by moving it with the radial. arm and relatively to said arm into the right place over the table,

&

motion will be communicated through the described connections to the valve rod 30 to admit air under pressure to the cylinder 25 and actuate the presser block downwardly.

Below the cylinder 25 is a second cylinder 61 having a piston head 63 which is also attached to the rod or stem 8. The cylinder 61 is smaller than the cylinder 25 and adapted to actuate the presser block with a smaller force suited to easier worl. This cylinder is provided with a valve rod 65 controlling the inlet and exhaust openings 67 and 6t) and is actuated by a set of

connections

59, 60, 62 6 1, 66, 68, 70, 72, 7 1, 76, 78, 80, and 82 with a trigger 8 1 acted upon by a spring 83 and mounted beside the trigger 55 in position to be engaged instead of the trigger 55, or in addition to that trigger in case it is desired to use both cylinders at the same time.

The

cylinders

25 and 61 are one-way cylinders open at the bottom and the piston heads for the two motors are attached directly to the same stem, which is the post 8. Below the piston head 63 and acting against it are springs 85 that raise the piston heads and the motor-actuated parts when the trigger or triggers are released to permit the exhaust ports to be opened by the springs 86 acting on the

valve rods

30 and 65. The hollow shaft 8 is mounted at the rear left corner of the base or frame 2 and the cutting bed 3 is mounted in front thereof, as indicated in Fig. 5. The radial arm 15 which is mounted on said shaft 8 is adapted to swing over the bed 3 between the two positions indicated in broken lines on Fig. 5.

The hub 12 of the radial arm has on its rear side shoulders 90 between which is located one end of a pivoted bar 92, the other end of which has inclined lower side faces which normally rest between spring-pressed plungers 9a. The bar and the plungers act as yielding buffing means to check the swinging movement of the arm. Rigid stops are provided ateither side of the plungers to arrest the movement of the bar positively if the momentum of the arm should carry the bar over the plungers.

The cutting bed 3 is approximately rectangular in outline and may be provided with a cutting surface, as by mounting plates 100 of a hard metal upon a supporting plate 102. The bed is so mounted on the base or frame 2 as to slide longitudinally thereof, having ways 104. which co act with guides 106 formed on the base or frame. Any convenient means may be provided for actuating the bed, but in the form illustrated lugs 108 are mounted on the lower side of ti e bed and carry a piston rod 110, having a piston 112 within a stationary cylinder 114;, preferably mounted on the frame of the machine. Means is provided for admitting fluid under pressure at will to either end of the cylinder to move the piston in either direction. On each end of cylinder 111 is supported a valve casing 116 Within which are located inlet and

exhaust valves

118 and 120. The stems for these valves extend without the casing and are pivotally connected to levers 1.22, which in turn are connected by a link 12 1. One of the levers 122 is extended through an opening 126 formed in the base or frame 2 to provide a'handlc 127 to be grasped by the operator. The stems for the

inlet valves

118 and 120 are arranged in axial alinement and between them is mounted a spring 128 to hold said valves closed. Bell-crank levers 130 are mounted on the frame of the machine adjacent to each end of the cylinder, and corresponding arms of said levers are connected by a link 132 which is also connected to one of the levers 122. The other arms of said levers 130 are extended in the form of cams with which co-act rollers 13 1 mounted on the ends of rods 136 adjustably secured to the lower surface of the cutting bed.

In the operation of this machine the Work to be operated upon is supported on bed In case stock is to be died out the die is then placed in proper position on such stock. When the cutting bed is provided with a hard metal surface a cutting die having a dull or blunt edge will preferably be used. The presser block 16 is then brought into proper position to act upon the desired portion of the workas, for instance, by engaging the upper edge of a die already positioned on the stock to force the cutting edge thereof through the stock. By swing ing the radial arm angularly on its supporting shaft 8 and moving the presser block 16 by means of the handle 59 lengthwise thereon the contact plate 18 may be brought over any part of the bed 3 within the limits of that sector of a circle the center of which is on the axis of the shaft 8 the radius of which is equal to the effective length of the radial arm 15 and the angle of which is determined by the position of lugs or shoulders 90 on the hub 12.

Having brought the presser block 16 into position and while still holding the handle 59 the operator reaches with his fingers to pull outward on trigger 55 or trigger 8 1, or

both, according to the amount of pressure it is desired to exert. The movement of the triggers is transmitted through the connections above described to the valves controlling the supply of fluid under pressure to the motors, admitting fluid to one or the other or both of said motors, and depressing the radial arm 15 and presser block 16 carried thereby to force the die through the stock. o have shown motors which are actuated in one direction only by fluid pressure, being returned by springs; but we do not desire to be limited thereto as two-way motors could be employed equally well. l/Vhen the operator releases the triggers they are immediately returned to inactive position by

springs

53 and 83 permitting the springs 86 to close the inlet valves to the cylinders and to open the exhaust, when the pistons together with the piston rod 8 and the radial arm 15 are elevated by the springs 85, enabling the operator to remove the piece cut out and to position the die anew. Then as many pieces as possible or desirable have been stamped from that area of the hide which is within reach of the presser block for any position of the cutting bed the operator grasps handle 127 and moves it in the direction in which it is desired to move said bed. It the bed is in the position shown in Fig. 5 and it is desired to move the table to the left, the operator moves the handle 127 toward the left, causing the lever 122 situated at the right of the cylinder 114 to tulcrum on the stem for the inlet valve 118, which is held from moving by the spring 128, and to close the exhaust valve 120. The stem for the exhaust valve 120 thus becomes the fulcrum for the lever 122 and in the further movement of said lever the inlet valve 120 is opened against the tension of spring 128, admitting the actuating fluid to the right of the piston to move said piston and the cutting bed 3 toward the left. At the same time motion is transmitted through the link 12 1: and the lever 122 at the left of the cylinder 11 1 to open the exhaust at that end to permit the cylinder to be moved. When the operator releases the handle 127 the inlet valve is closed by the spring 128, holding the piston and cutting bed in the position in which they are situated at the time. Should the operator neglect to stop the table at the pro-per time one of the rollers 134: mounted on the rod 136 will contact with the cam surface of its corresponding bell-crank lever 130 and cause said lever to rock and to return the lever 127 to inoperative position through link 132. Should the momentum of the bed 3, however, be too great to be immediately checked by cutting oif its power, the bell-crank lever 130 will be rocked farther by the continued movement of its rod 136 and the handle 127 and lever 122 will be moved past inoperative position to admit the actuating fluid to the other end of the cylinder and reverse the movement of the piston. This movement of the piston in the reverse direction is but slight, however, for the handle 127 is moved to inoperative position by the spring 128 as soon as the bell-crank lever 130 is released by the reversal of the movenent of the rod 136.

Having explained the nature of the inven tion and fully described an apparatus embodying it in the best form now known to us, we claim as new and desire to secure by Letters Patent of the United States 1. In an apparatus of the class described, the combination with a bed and a coiiperating pressure member relatively movable into diiferent operative relations to each other, of means for effecting a pressure applying relative movement of said parts constructed and arranged to impart, under the control of the operator, pressure of varying degree.

2. In an apparatus of the class described, the combination with a bed and a cotiperating pressure member relatively movable into different operative relations to each other, of means for effecting a pressure applying relative movement of said parts and devices under the control of the operator for determining the degree of pressure applied.

3. In an apparatus of the class described, the combination with a bed and a cooperating pressure member relatively movable into different operative relations to each other, of means for effecting a pressure applying rel ative movement of said parts constructed and arranged to impart predetermined pres sure of varying degree at the will of the operator.

4. In a press the combination with pressure applying members relatively movable into different operative relations to each other and mechanism for effecting a pressure applying relative movement of said members comprising the cylinders and 61 of different sizes and controlling means therefor including triggers and Sat.

5. In an apparatus of the class described, the combination with a bed and a cooperating pressure member relatively movable into different operative relations to each. other, of mechanism for elfecting a pressure applying relative movement of said parts, and means arranged to be controlled by a single hand of the operator for actuating said mechanism and for determining the amount of pressure applied.

6. In an apparatus of the class described, the combination with a bed and a cooperat ing pressure member relatively movable into different operative relations to each other, of mechanism for effecting a pressure applying relative movement of said parts, and common means for actuating said mechanism and controlling the amount of pressure applied through said mechanism.

7. In an apparatus of the class described, the combination with a bed and a cooperating pressure member movable over said bed into different operative relations thereto, of mechanism for effecting a pressure applying relative movement of said pressure member and bed, and means movable with said pressure member over the bed and ar-- ranged to be controlled by a single hand of the operator for actuating said mechanism and controlling the amount of pressure applied.

8. In an apparatus of the class described, the combination with a bed and a cooperating pressure member relatively movable intodifferent operative relations to each other, of means comprising a plurality of actuating mechanisms arranged to be used sepa rately or together at the will of the operator for moving the bed and pressure member relatively.

9. In an apparatus of the class described, the combination with a bed and a cooperating pressure member relatively movable into different operative relations to each other, of means comprising a plurality of operating mechanisms for moving the bed and the pressure member relatively, and means under the control of the operator by which one or another or a plurality of said operating mechanisms can be rendered operative.

10. In an apparatus of the class described, the combination with a bed and a cooperatin )ressure member relativel movable into different operative relations to each other, of a plurality of fluid-actuated motors of different power, and means under the control of the operator for rendering operative one or another of' said motors toeffect a pressure applying relative movement of said bed and the pressure member.

11. In an apparatus of the class described, the combination with a bed and a cooperating pressure member relatively movable into different operative relations to each other, of a plurality of fluid-actuated motors, and means under the control of the operator whereby one or more of said motors may be rendered operative for effecting a pressure applying relative movement of said bed and said pressure member.

12. In an apparatus of the class described, the combination with a bed and a cooperating pressure member relatively movable into different operative relations to each other, of a one-way fluid-operated motor for actuating the bed and the pressure member rela tively to apply pressure, and other means for reversely actuating said parts relatively.

13. In an apparatus of the class described, the combination with a bed and a cooperating pressure member relatively movable into different operative relations to each other, of fluid actuated means for effecting a relative pressing movement of the bed and the pressure member and a spring for effecting the return movement.

14-. In an apparatus of the class described, the combination with a bed and a cooperating pressure member yieldingly maintained normally at a fixed distance from said bed and movable laterally over the bed into diffcrent operative relations thereto, and fluid actuated means for moving said pressure member toward the bed to effect a pressing operation.

15. In an apparatus of the class described, the combination with a bed and a cooperating pressure member manually movable over the bed and provided with a handle, of operating mechanism for relatively moving said bed and member to apply pressure, and starting mechanism therefor including a trigger arranged in relation to said handle to be actuated by the operator while grasping the handle.

16. In an apparatus of the class described, a bed, a cooperating pressure member manually movable over the bed and provided with a handle, and mechanism for relatively actuating the bed and member to apply pressure, said mechanism comprising a plurality of sources of power, combined with starting mechanism including means arranged adjacent to said handle by which one or another of said sources of power may be rendered operative for applying pressure.

17. In an apparatus of the class described, the combination with a bed, of a swinging arm movable over the bed and a presser block mounted to move in its own plane upon the arm and constrained to move with the arm.

18. In an apparatus of the class described, the combination with a bed, of a radial arm movable over the bed in a fixed path and in a plane substantially parallel to said bed, mechanism for moving said arm toward the bed, a presser block movably mounted upon said arm and constrained to move with the arm and means movable with said presser block for actuating said mechanism.

19. In an apparatus of the class described, the combination with a bed, of an arm movable over the bed in a plane parallel thereto, a presser block movably mounted upon said arm, and fluid actuated means for effectingv a relative pressing movement of said presser block and. said bed.

20-. In an apparatus of the class described, the combination with a bed, of a radial arm movable over the bed in a plane substantially parallel thereto, a presser block mounted on the arm for movement lengthwise thereof, fluid actuated mechanism for effecting a relative pressing movement of the bed and presser block, and means movable over the bed with the presser block for 22. In an apparatus of the class described, the combination with upper and lower pressure applying members, and a presser block movably mounted on one of said members, of actuating mechanism for said members, and starting mechanism extending to the movable presser block, and constructed and arranged to be operated for starting the actuating mechanism in different positions of the presser block.

23. In an apparatus of the class described, the combination with cooperating pressure applying members and a presser block guided upon one of said members, of mecha nism for relatively moving said members to apply pressure, a starting mechanism therefor extending to the presser block and comprising a movable connection between an operating device carried by the presser block and a device mounted in the block supporting member.

2a. In an apparatus of the class described, the combination with a bed and a swinging carrier movable over the bed, of a presser block movable upon the carrier, mechanism for relatively actuating the carrier and the bed to apply pressure, and starting mechanism comprising a device movable with said block, a member mounted in the carrier and a sliding connection between said device and member constructed and arranged to permit the starting mechanism to be actuated by said device in different positions of the presser block.

25. In an apparatus of the class described, the combination with a bed, of an arm movable over the bed in a fixed path and in a plane parallel to the bed to bring it into various operative relations to the bed and a presser block constrained to move with said arm over the bed and adjustable upon said arm into operative relation to a constricted area of the opposite face of said bed within the field of movement of said arm.

26. In apparatus of the class described, the combination with a bed, of an arm movable over the bed in a plane parallel thereto and a presser block movable upon said arm in a plane parallel to the bed but in a direction different from the direction of movement of the arm over the bed.

27. In an apparatus of the class described, the combination with a bed, of a radial arm movable over the bed in a plane substantially parallel therewith, a presser block adjustably carried upon the said radial arm and constrained to move with the arm over the bed, and means for relatively actuating the bed and block to apply pressure to stock interposed between them.

28. In an apparatus of the class described, the combination with a cutting bed, of a carrier movable over the bed, and a presser block movable with the carrier and also movable upon the carrier in a plane parallel to the bed to position the block over different portions of the bed at different times.

29. In an apparatus of the class described, the combination with a bed, of a carrier movable longitudinally across the bed, a presser block mounted on the carrier for movement with the carrier transversely of the bed and also movable in its own plane upon the carrier, and means for relatively actuating the presser block and bed to apply pressure to stock interposed between them.

30. In apparatus of the class described, the combination with a bed, of a radial arm movable over the bed in a plane parallel thereto and a presser block carried by and constrained to move with said arm, said arm being constructed to permit a radial movement of said block with respect to the axis about which said arm turns, the plane of movement of said block being also parallel to said bed.

31. In apparatus of the class described, comprising a bed and a die freely movable over said bed, an arm movable over the bed in a plane parallel thereto, and a presser block carried by and constrained to move with said arm and movable upon said arm in a direction different from the direction of movement of the arm over the bed whereby said presser block may be brought into operative position over the die in its various locations on the bed.

32. In apparatus of the class described, comprising a bed and a die freely movable over said bed, a radial arm movable over said bed in a plane parallel thereto and a presser block carried by and constrained to move with said arm, said parts being constructed and arranged to permit a radial movement of said presser block with respect to the axis about which said radial arm turns whereby said presser block may be brought into operative position over the die in its various locations on the bed.

33. In apparatus of the class described, the combination with a bed, a presser block, means for supporting the presser block constructed and arranged to permit an angular movement thereof about an axis outside the bed and a radial movement thereof with respect to said axis, mechanism for moving said presser block toward and away from the bed during the pressing operation and means for actuating said mechanism movable with the presser block over the bed.

34. In apparatus of the class described, the combination with a bed, of a presser block, a vertically movable support at one side of said bed, means for carrying said presser block mounted upon said support and constructed and arranged to permit an angular movement of said block about the axis of said support and a radial movement of said block with respect to said axis and in the same plane as said angular movement,

said means being also constructed to force said block toward the bed during the vertical movement of said support to effect a pressing operation.

35. In an apparatus of the class described, the combination with a bed, of a radial arm movable over the bed in a plane substan tially parallel thereto, and a presser block mounted on the arm for movement in its own plane lengthwise of the radial arm.

36. In an apparatus of the class described, the combination with a carrier and a presser block, of a stock carrying bed movable lengthwise under the presser block in such manner as to present dili'erent portions of the stock to the block, said carrier being movable over the bed and said presser block being arranged for movement over the bed in a direction diil'erent from the direction of movement of said carrier over the bed.

37. In an apparatus of the class described, the combination with a carrier, a presser block, a stock carrying bed movably mounted under the presser block, said presser block being mounted on the carrier for movement over the bed and automatic means under control of the operator for advancing the bed under the presser block.

38. In an apparatus of the class described,

the combination with an oscillatable carrier,

a presser block mounted on said carrier, a stock carrying bed movably mounted under the presser block, and automatic means under control of the operator for relatively moving the bed and the presser block.

39. In an apparatus of the class described, the combination with a carrier, a presser block, a stock carrying bed movably mounted under the presser block, automatic means under control of the operator for advancing the bed under the presser block, and means for yieldingly checking the movement of the bed at the end of its traverse.

40. In an apparatus of the class described, the combination with an oscillatable carrier, a presser block mounted on said carrier, a stock carrying bed movably mounted under the presser block, automatic means under control of the operator for advancing the bed under the presser block, and mechanism operating automatically for reversing the direction of movement of the bed at the end of its traverse and then stopping the bed.

41. In an apparatus of the class described, the combination with a carrier, a presser block, a stock carrying bed movably mounted under the presser block, automatic means under control or" the operator for advancing the bed under the presser block, and mechanism operating automatically for checking the movementof the bed, reversing said movement, and then bringing the bed to rest.

42. In an apparatus of the class described, the combination with an oscillatable carrier,

a presser block mounted on said carrier, a stock carrying bed movably mounted under the presser block, automatic means under control of the operator for advancing the bed under the presser block, and mechanism operating automatically for rendering said advancing means inoperative- 43. In an apparatus of the class described, the combination with a carrier, a presser block, a stock carrying bed movably mounted under the presser block, and fluid-operated mechanism under control of the op erator for advancing the bed under the presser block. 7 44. In an apparatus of the class described,

the combination with a carrier, a presserv block, a stock carrying bed movably mounted under the presser block, and fluid-operated mechanism under control of the operator for advancing the bed under the presser block, said mechanism being arranged to reverse automatically the movement when the bed reaches the end of its traverse and then bring the bed to rest.

45. In an apparatus of the class described, the combination with a carrier, a presser block, a stock carrying bed movably mounted under the presser block, fluid-operated means for advancing the bed, a manually operated device for controlling said fluidoperated means, and means for automatically shifting the manually cont-rolled device at the end of the traverse of the bed in case the operator neglects to shift it.

4L6. In a machine for cutting out stock, the combination with a cutting bed, of a post located adjacent to the corner of a working area of the cutting bed, a radial arm mounted on the post and adapted to swing over the said working area of the bed in a plane parallel therewith into difierent operative relations to said bed, a presser block carried by the radial arm and constrained to move therewith over the bed, and means for actuating said block and bed relatively to apply pressure to the stock.

l7. In a machine for cutting out stock, the combination with a cutting bed, of a post located adjacent to the oornerrof a working area of the cutting bed, a radial arm mounted on the post and adapted to swing over the said working area of the bed in a plane parallel therewith, a presser block carried by and constrained to swing with the arm and movable lengthwise of the arm whereby it may be positioned over diiierent portions of the working area of the bed, and ineans for actuating said blocks and bed relatively to apply pressure to the stock.

48. In a machine for cutting out stock, the combination with a cutting bed, of a post located adjacent to the corner of a working area of the cutting bed, a radial arm mounted on the post and adapted to swing. over the said working area of the bed in plane parallel therewith into different operative relations to said bed, a presser block carried by the arm, said machine having provision for movement of the bed to present another working area thereof in the same relative position to the post and the arm as the first mentioned working area, and means for actuating said block and bed relatively to apply pressure to the stock.

49. In apparatus of the class described, the combination with a bed, of a radial arm arranged to swing over the bed about an axis outside the bed and means for checking the movement of the radial arm at each of the limits of its movement over the bed constructed to yieldingly retard and then to positively stop said movement.

50. In an apparatus of the class described, the combination with a bed, of a presser block, a movable carrier therefor, a spring stop for yieldingly checking the movement of the carrier, and a rigid stop arranged to check the movement of the carrier positively.

51. In apparatus of the class described, the combination with a bed, of a radial arm arranged to swing over the bed about an aXis outside the bed, and means for limiting the swinging movement of the arm in either direction comprising shock absorbing means for first retarding the movement of said arm and rigid stops for positively checking said movement.

52. In an apparatus of the class described, the combination with a bed, of a presser block, a movable carrier therefor having a shoulder, a pivoted bar in the path of said shoulder and a spring pressed plunger arranged to resist movement of the bar.

53. In an apparatus of the class described, the combination with a bed, of a presser block, a swinging arm upon which the block is mounted, shoulders on the hub of said arm, a pivoted bar extending between said shoulders to be engaged thereby when the arm reaches the end of its movement in either direction, and spring pressed plungers located on opposite sides of the bar.

54-. In a machine for cutting out stock, the combination wit-h a cutting bed and a co operating pressure applying member, of a presser block mounted on said member and carrying a contact plate connected to its lower face for universal tipping movement.

In testimony whereof we have signed our names to this specification in the presence of two subscribing witnesses.

DANIEL N. PRIME. ERNEST ASHTON. VVit-nesses CHARLES E. GRUsH, ARTHUR L. RUssELL,

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