US478759A - pearson - Google Patents

Description

t e e N O S R A. E D1 .H M

EYELETING MACHINE.

Patente .Jul 12, 1892.

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M. H. PBARSON.

BYELETING MACHINE.

No. 478,759. Patented July 12, 1892.

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M. H. PEARSON.

BYELBTING MACHINE. A

No. 478,759. Patented July 12, 1892.

(No Model.) 4 Sheets-Sheet 4. M. H. PEARSON. 'EYVELETING MACHINE.

No. 478,759. Patented July l2, 1892.

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UNITED STATES PATENT OFFICE.

MARSHALL HENRY PEARSON, OF LEIGESTER, ENGLAND.

EYELETING-MACHINE.

SPECIFICATION forming part Of Letters Patent NO. 478,7 59, dated July 12, 1892. Application filed January 20, 1892. Serial No. 418,694. [No model.) Patented in England May 16, 1891, No. 8.477.

To all whom, t may concern:

Beit known that 1, MARSHALL HENRYPEAR- SON, a subject of the Queen of Great Britain, residing at Leicester, in the county of Leicester, England, have invented new and useful Improvements in Punching and Eyeleting Machines, (for which I have applied for Letters Patent in Great Britain and Ireland the 16th day of May, 1891, No. SATZ) of which the following is a specification.

My invention relates to that class of punching and eyeleting machines such as are described in the specification of United States Letters Patent granted to me and Charles Bennion the 29th day of January, A. D. 1889, No. 396,890; and the object of the present invention is, first, to make the machines selffeedingthat is, in addition to automatically supplying the eyelets to the clinching mechanism to intermittently traverse the Work forward after the punching and eyeleting operations or punching operation alone have or has taken place-and, second, to provide suitable power driving and stopping mechanisms for actuating and arresting the motion of the eyeleting and punching spindles. I attain these objects by mechanism illustrated in the accompanying drawings, in which- Figure 1 is a front elevation of the machine with the stand and treadle arrangement removed. Figs. 2 and 3 are respectively left and right hand elevations with driving-pulleys and fly-wheel removed; Fig. 4, a plan looking at the top as it appears after the removal of the horn and eyelet-receiving box; Fig. 5, a part back elevation of machine; Fig. 6, a section through the cams, disk, and drivers; Fig. 7, elevations of the cams; Fig. 8, a part front elevation showing presser-foot arrangement; Fig. 9, an elevation of means for supporting the lower die; Fig. 10, a part sectional plan of horn and method of supporting the lower die. Figs. 11 and 12 are respectively a part elevation and plan, drawn to an enlarged scale, of means for adjusting the position of the punching and eyeleting spindles. Figs. 13 and 14 are respectively side and end elevations of drivers. Figs. 15 and 16 are respectively side and end elevations of curved wedges.

Similar letters refer to similar parts throughout the several views.

A is the swinging frame or cheek (hereinafter termed cheek) in which the punchingspindle @(armed with a punch a) works. The cheek A is hinged at a-X to the main framework B of the machine. In bearingsbof the frame-work B the eyeleting-spindle b"(armed with the upper clinching-die h2) intermittently reciprocates. C is the eyelet-receiving boX, which is jointed to the chute D.

All the above-mentioned parts may be of the same construction and are operated (with the exception of the spindles a and h) in the same manner as described in the aforesaid patent.

The cheek A, carrying the punching-spindle a, is held away from the main frame-work B by a spring a2, (see Figs. 11 and 12,) and the distance between the punch and eyeleting-dies b2 117 may be regulated by two screws as a4. the punching and eyeleting dies to two sizes, the upper a3 of the two screws is employed for regulating the longer distance, while the lower stop a4 (which may consist of an adjusting-screw a4, armed with a lock-nut, mounted in a lever a5, carried by a spindle a, fixed in a boss b3 on the frame B) is made to overcome the pressure of the spring a2 whenever the end of the screw a4 is made to describe a semicircle (in the direction of arrow) on the face of the cam-shaped piece a", fixed on the cheek A. The position of the screws a3 a4 may, when desired, be reversed. In the In order to adjust the distance between above-describedarrangement of lower stop a4 A the head of the spindle a6 (on which the lever a5 turns) is cut away, as shown at Fig. 11, to form a stop against which a pin d8, mounted on the lever a5, works.

The required intermittent vertical reciprocating motion is imparted to the punchingspindle a from a cam E on the driving-shaft F (mounted in the bearings b5, formed on the bifurcated portion h6 of the frame-work B) of the machine through a double-ended lever e, armed at the cam end with a runner e', fulcrumed to the frame-work B at e2. The punching-spindle or, which may be provided with an adjustable head am, is kept in contact with its actuating-lever e by means of a suitable spring eX, which is also employed for retaining the runner e at the opposite end of lever e in contact with cam E. The cam E IOO first causes the punching-spindle a to descend and punch the hole, and when this has been done the punch a' slightly rises in the material, but not clear of it, and then remains stationary, as regards its vertical movement, until the lateral feeding motion has taken place for placing the hole in position to be eyeleted.

The feeding ofthe work is accomplished by means of a cam G, also mounted on the driving-shaft F, acting upon a runner g, mounted in a carrier g', adjustably or otherwise attached to the cheek at a9. Just before the lateral feeding motion takes place the lower eyeleting-die 57 is made to fall below the level of the punching plate or bed 7s to permit of the punch ct' moving the material for- 'ward,as described, and immediately the pun ch has completed its horizontal feeding movement the lower die bl rises into the hole previously punched in the material. The spindle dat the same time is raised by its spring eX.

j The motion for raising and lowering the lower eyeleting die bl is obtained from a third cam H, mounted on the driving-shaft F, which acts upon a runner 71, mounted in the upper end of a double-ended lever I, fulcrumed at t" to the frame-work B. The opposite or lower end of lever I is attached by a link Z3 to a sliding cam-piece i2, which actuates the lower die-supporting piece J. The supporting-piece J is shaped somewhat similar to a horseshoe (see Fig. 9) and works within the horn K of the machine, as shown at Figs. 1,2, and The position of thelower eyeleting-die bl and its supportingpiece J may be adjusted by set-screwj.

The eyeleting-spindle b is reciprocated by a fourth cam L, mounted on the drivingshaft F, by means of a double-ended lever Z', (which is fulcruined at Z2 to the frame-work B and armed at one end with a runner Z3, while the opposite end is slotted to receiveadie Z4, mounted on a pin fixed to t-he eyeleting spindle,) which first causes the spindle to descend and take an eyelet from the chute D, insert it in the material, and then to clinch it upon the lower die bl. Suitable springs may also be employed for retaining the cams E, G, H, and L in contact with the runners e', g, t', and Z3.

On reference to the ldrawings it will be seen at Fig. 6 that the cams E, G, and Hare arranged so that they may be secured by setscrews M M, so as to operate together. The whole of the cams E, G, H, and L may be mounted loosely upon the driving-shaft F, but are so connected together that they will operate upon their respective parts in proper order. They also remain stationaryupon the shaft F, except when acted upon by the drivers N N--that is to say,on the driving-shaft F, (to which a continuous rotary motion is imparted through driving-pulley O from any convenient source of power. O' is aloose pulley and O2 a iiywheel,) on which the cams E, G, H, and L are mounted loosely and remain at rest until put into motion by treadles, (not shown in the drawings, but may be two in number), and of a similar construction to those described and illustrated in the aforesaid patent. Between the cams E and L- that is, the eyeleting and punching camsisa disk P, which is secured by a set-screw p to the shaft F, and is free to rotate with it. Mounted in or upon the disk P is a steel pin 19', (which is held in position by a set-screw 292,) so as to project on each side thereof to engage with the drivers N N'. The drivers are mounted loosely on the hubs of the disk P, and are arranged, respectively, within the bosses Z and e4 of the eyeleting-cam L and punching-cam E. The ends n n' of the drivers N N' project beyond the peripheries of the bosses Z and e4, while their opposite ends are each within the said bosses. As the drivers revolve with the cams E and L they are arranged to come separately or simultaneously in contact with one or both of the curved wedges Q Q', the inner faces of which are shaped to lit the peripheries of the bosses e4 Z, as shown at Fig. 2. Each wedge Q or Q' is adj ustably attached to a bell-crank lever q or q', which in turn is jointed or centered at qx to a bracket q2, fixed to the bifurcated portion h6 of the framing B. When a driver N or N' during its rotation comes in contact with the wedge Q or Q', it is thereby caused to move away from the pin p' in the disk P. The disk P is then free to revolve. A shoulder or projection qs or Q4 is formed on each wedge Q Q for preventing the drivers N N continuing their rotation-thatis, each shoulder acts as a positive stop. Aslight pressure on either of the treadles will cause the rod O3 and lever q' to be depressed in the direction of arrow for moving one of the wedges Q or Q' away from the boss of the cam, thereby releasing it from Contact with the driver N or N', which is then free to be pressed inward toward the disk P by a spring p3 or p4 (arranged within the said cams) within the circuit oi' rotation of the pin p. As soon as the pin strikes the driver it causes the cam (to which the driver is connected) to rotate. Thus if the eyeleting-spindle b' is required to be operated the eyeleting-treadle will be depressed thereby, withdrawing the projection g4 on wedge Q from its contact with driver N', which permits the spring-p4 to press said driver N within the circuit of pin p' for operating the cam L. W'hen the opposite treadle is operated, a similar result will be obtained for punching and feedingnamely, on wedge Q being moved outward projection Q3 will be released from its contact with the driver N, thereby allowing the spring p3 to press the driver into contact with the end of pin p' for rotating cams E, G, and H; but when desired before a complete revolution of the cams has been made the treadle or treadles may be released and the wedge or wedges returned to its or their normal posi tion, thus `forcing the driver or drivers out of IOC Contact with the pin p' and against the stops g3 or g4 for stopping the rotation of the cam or cams. If the cams are required to make several rotations without stopping, the treadle or treadles may be held down by the foot of the operator. The two wedges Q Q are controlled by separate treadles, which may be depressed singly or simultaneously, as required.

A presser-foot R is provided to hold down the material while the punch a' is being withdrawn and also for keeping the work in position until the eyelet is clinched. The presser-foot R is mounted on a bar 1', carried in suitable bearings 7" r' on the frame-work B, as shown at Figs.3 and 8. The requisite motion for raising the presser-foot is obtained from the double-ended lever e through a setscrew rl, (mounted in a projection el@ on the lever 9,) which is made to engage with the end r of the lifting-bar frz, fulcrumed at r3 to the frame-work B. The lifting bar or lever r2 is connected to the presser-bar r by means of a pin r4, which is arranged to work in the slothole fr. The presser-foot R is returned to and kept down to its work by aspringfrs. In order to move the eyelet-chute D to the leftthat is, in direction of arrow l-whenever the presser-foot R is raised (by the means described) a cam r9 is formed on or attached to the presser-foot, which is arranged to engage with a pin T10, projecting from the back of the chute D. A small chute S may also be attached to the punching-spindle a for conveying the punchings away, thus preventing them from falling under the punching or eyeleting die.

The mechanism for sorting and feeding the eyelets, also the upper eyeleting-die b2, may be of the same construction and actuated in the same manner as that described in the aforesaid patent.

The cycle of movements is as follows: The punch ct' first descends and makes a hole and then rises just clear of the punch-bed lo; second, the lower die U' descends and the punch a moves laterally, carrying the material with it; third, the lower die 117 rises into the hole punched and punch a rises and moves back to its original position, and, lastly, the upper eyeleting-die b2 descends, receives an eyelet from chute D, and clinehes it in the material, and then rises to its original position. During the above cycle of movements the presserfoot is arranged so that it will always press upon the material, except during the time that the punch is in the material-that is, the presser-foot is raised as soon as the punch enters the material and it falls when the punch is raised after the feeding movement has taken place.

Having now particularly described the nature of my invention, what I claim, and desire to be secured by Letters Patent, is-

l. In a punching and eyeleting machine, the combination, with the framework, of a hinged cheek, a punching-spindle mounted therein, a reciprocating eyeleting spindle mounted in the framework, aspring for holding the cheek away from the framework, and adjusting devices comprising a cam for holding the cheek in the desired position relatively to the frame to vary the distance between the punching and eyeleting spindles.

2. In a punching and eyeleting machine, a cheek A, hinged to framework B, having a spring a2 interposed between the said cheek and framework, and a distance-regulating screw d3, in combination with punching and eyeleting spindles mounted in the cheek and the framework, all substantially as set forth.

3. In a punching and eyeleting maehine,a cheek A, hinged to framework B and spring a2, with a screw a4, mounted in a lever a5, (armed with a pin 0.8,) turning on a spindle a, attached to said framework, and a cam co7, in combination with the punching and eyeleting spindles mounted in the cheek and framework, all substantially as set forth.

4. In a punching and eyeleting machine, the combination of punching and eyeleting devices, theirpower driving and feeding mechanisms, consisting of cams E, G, H, and L, mounted on driving-shaft F, disk P, drivers N N', pulleys O O', wedges Q Q', levers e, l, I, and 3, lower-die-supporting piece J, and campiece t2, all substantially as specified.

5. The combination, in apunching and eyeleting machine, of a reciprocating punchingspindle mounted in a hinged cheek, with a double-ended lever fulcrumed to the framework, a cam for operating said lever, a disk mounted on the driving-shaft and armed with a pin, a driver mounted on the hub of said disk, and a curved wedge hinged to the framework, all as set forth.

6. The combination, in a punching and eyeleting machine, of eyeleting devices, cams E, G, and H, disk P, pin p', spring p3, driver N, curved wedge Q, driving-shaft F, pulleys O O', levers e, spring ex, spindle 0., cheek A, runner g, carrier g', and bracket a9, as and for the purposes set forth.

7. In a punching and eyeleting machine, the combination of a spindle b', mounted in bearings on the main framing B, with lever Z', cam L, driving-shaft F, pulleys O O', disk P, pin p', spring p4, driver N', and curved wedge Q', all substantially as and for the purposes set forth.

8. The combination, in a punching and eyeleting machine, of cams E, G, H, and L, driving-shaft F, disk P, pin p', drivers N N' setscrews M M p and p2, and springs p3 and p4, substantially as shown, for the .purposes specified.

9. In a punching and eyeleting machine, the combination, with punching and eyeleting devices, of the disk P, armed with a pin p' and having drivers N N' mounted on its hub, and connections between the drivers and the eyelet setting and punching devices, substantially as shown, and for the purposes specified.

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10. The combination, with punching and eyeleting devices, of a power-driven shaft, cams thereon, connections between the cams and the punching and eyeleting devices, the drivers, connections between the drivers and the cams, the curved wedges Q Q', having projections Q3 g4 formed on their sides, and means for operating the wedges, substantially as and for the purpose specified.

I1. The combination, in a punching and eyeleting machine, of a driving-shaft, cams loosely mounted thereon, a disk P, secured to the shaft, a driver N', apin p' for connecting the driver with the disk, a wedge Q' for moving the driver, the support for the lower clinching-die, the spindle of the upper clinching-die, the lever Z', connecting the spindle' with its operating-cam, and connections between the support of the lower clinching-die and its operatingcam- 12. The combination, in a punching and eyeleting machine, of framework B, reciprocating spindle b', die 192, lever Z, cam L,driv ing-shaft F, wedge Q', driver N', disk P, pin

p', with horn K, and lower die 137, all substan- 14. In apunching and eyeleting machine, the combination of the vertically-reciprocating punching spindle, eyeleting devices, means for actuating the punching-spindle and the eyeleting devices, an eyelet-feeding chute D, a vertically-reciprocating presserfoot, and devices carried by the presser-foot for moving the eyelet-chute laterally, substantially as and for the purpose set forth.

l5. The combination, in a punching and eyeleting machine, of the hinged cheek A, connected with the framework B, reciprocating spindle a, reciprocating spindle b', levers e and Z', eyelet-box C, chute D, presser-foot R, bar r, lifting-lever r2, set-screw T7, spring rs, cam-piece r9, and pin T10, all substantially as Set forth.

16. The combination, in a punching and eyeleting machine, of a cheek A, hinged to framework B, reciprocating spindles d and b', stops a3 d4, lever a5, spindle a, cam al, cams E, G, II, and L, driving-shaft F, pulleys O 0', levers e, I, and Z', carrier g', cam-piece '112, link 113, supporting-piece J, horn K,drivers N N', treadl'e-rod O3, disk P, pin p', springs p3 p4, wedges Q Q', presser-foot R, bar r, lifting-lever r2, adj usting-screw o, spring rs, cam r9, and pin T10, all substantially as herein set forth.

In testimony whereof I have hereunto signed my name 4to this specification in presence of two subscribing witnesses.

MARSHALL HENRY PEARSON.

Witnesses:

FRED FELLowEs WIGGINS, GEORGE WM. COLEMAN.

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