US729825A - Eyeleting-machine. - Google Patents

Description

PATENTED JUNE 2, 1903.V

2 SHEETS-HEBT 1.

\ W. L. WHITTBMORE. BYBLBTING MACHINE.` APPLICATION FILED JAN. 23, 1899.

N0 MODEL.

PATENTBD JUNE 2, 1903.4

2 SHEETS-SHEET 2 o E wg N0 MODEL.

m v m L H 4@ 4, mmwwm y ,Te f V//ly/ L ym WMM 6/ UNITED STATES Patented June 2, 1903.

' PATENT Orricn.

WALTER L. WHITTEMORE, OF VVOLLASTON, MASSACHUSETTS, ASSIGNOR TO CHARLES WHITTEMORE, OF NEWTON, MASSACHUSETTS.

- `EYIELETIlue-ivlAcHjtu-i.

SPECIFICATION forming part of Letters Patent No. 729,825, dated June 2, 1903. Appnctnonnlea Januari 2a, 1ste. serai Nt. 703,023. (No modem To @ZZ whom, it may concern:

Be it known that I, WALTER L. Wnrrrn- MORE, of Wollaston, in the countyof Norfolk and State of Massachusetts, have invented certain new and useful Improvements in Eye-A tain improvements therein, primarily for the enhancement of their eliiciency, and, second-` arily, for the simplification of their mechanism; and to these ends the invention consists of an eyeleting-machine possessing certain features of construction andrrelative arrangement of parts, all as illustrated upon the accompanying drawings, described in the following specification, and iinally pointed out in the appended claims.

Reference is to be had to the accompanyingr drawings, and to the letters marked thereon, forming a part of this specification, the same letters indicating like parts or features, as the case may be, wherever they occur.

Of the drawings, Figurel represents in side elevation a machine embodying my invention. Fig. 2 represents a transverse section of the same to show the movable die. Fig. 3 represents the work-plate of the machine, together with the movable die or punch-block and the feeding device for the work. Figs. 4, 5, and

G are enlarged sectional views illustratingtlre operation of the parts last mentioned. f In describing the machine which is illustrated upon the drawings I desire to have it first understood that Ait has been selected' by me for the purpose of disclosing one form of the invention and that while l prefer to claim transmitted to the eyeleting devices is indicated at b and is journaled in the head a', being equipped'with belt-wheels (not shown) in the'usual way, by means of which it is rotated. Y

The eyeleting mechanism comprises three members, of which one is capable of accomplishing two different functions, said members comprising two sets, and a movable die or punch-block',` adapted to coact with one of said sets in perforating the work for the reception of an eyelet, and lto feed the work I preferably, though not necessarily, employ a presser-foot and a member movable in the lines of the feed. The upper set or member c is mounted toslide in the end of the overhangiug arm a2 and is actuated by a centrally-fulcrumed curved lever c', connected at its rear end by a spring c? with a screw-eye c3 on the base-plate, and connected at its other end tol perforate the work' and then to cooperate with the other set for the purpose of setting `an eyelet in the work, and to that end it is provided with the tubular cutting edge cS and with the settingA portion ci', as shown in Figs. 2 Vand 4 to 6, inclusive. `The lower set isindicated at d and is detachably secured vvin a plunger d, mounted toslide in the lower arm a3, being connected by pivoted links d' d with a centrally-fulcrumed lever d2, whose other end is connected' by an adjustable rod d3 with an eccentric-strap d? around an eccentric ds on the said shaft b. The parts d3 d* d5 are all indicatedin dotted lines in Fig. 1, and it will be 4seen by reference thereto that as the shaft hrotatesthelower set d will be reciprocated vertically to meet the upper set c. The lower set is provided with the usual pin di, having a headds projectinginto a socket in the plunger and engaging a coiled ICO spring C29 therein, whereby it is held yieldingly at the upper extreme of its movement to take an eyelet from the chute or raceway, by means of which the eyelets are fed one by one thereto. The hopper or receptacle for the eyelets is indicated at 7e, being mounted in any suitable way and provided with a downwardly-extending chtite or raceway 7;', the lower end of which projects into proximity with the sets, so as to deliver the eyelets thereto.

Secured to the laterally-projecting portion a of the arm a3 is a support c, having provisions for receiving on its upper face the feeding-slide e', held in place by a gib e2. 'lhis slide is formed with two upwardly-projecting guiding-pins cS to receive a presserfootf, which is' movable toward and from the said plate to gripand release the work intermittently. Said slide is reciprocated transversely ot' the front of the machine to feed the work between the sets, and to that end is connected to any suitable mechanism actuated from the power-shaft. As shown, said mechanism comprises a lever g, fulcru med at g' to the base of the machine and having a yoke g2 to embrace a cam g3 on the powershaft b. One of the arms ot the yoke is provided with brackets g g5 to receive a rod or shaft gc, connected by a sliding link Q7 with a similar rod hnmounted in brackets h5 h4 on a rock-shaft. h3, journaled on screws h2,passed through lugs h' ou the head, said rock-shaft having an arm 77, connected to the slide c in any suitable way, as by a stud extending into an aperture or slot in the under side thereof. The brackets h h5 are at an angle to the arm 7L, whereby when the level' ,f/ is rocked about its fulcrum the rock-shaft 7b3 is rocked and the feed-slide is reciprocated in a rectilinear path.

The presser-footf is connected to a rod f, having its lower end bifurcated to take over a horizontally-extending pin f2 on a rod f3, passed upward through the arm a3 and having its lower end resting upon a centrallypivoted leverfl, the latter being fulcrumed at f5 to the head ctand being connected by the link f6 with a foot-treadle, as shown. There isa spring f7 inserted in the socket in the under side of the arm d3 and bearing against the iiangefs on the rodf3, which tends to hold the presser-foot yieldingly against the feed-slide; but by depressing the treadle the rod may be raised for the insertion of the work between the presser-foot and the slide or to remove it therefrom. In order tointermittently raise the presser-foot during the operation of the machine, the lever d2 is provided with a cam or stop f5', adapted to engage the end of the lever f4 as it approaches the upper eXtreme of its movement. The presser-foot itself is in the shape of ahorseshoe, whereby it provides a centrally-open space for the passage of the upper set, as shown in Figs. l and 3.

The punch-block or die, which is indicated Y ing bar ft2.

at c', is formed with a socket to receive a softmetal filling t" for the cutting edge of the upper set to abut against, although, if desired, I may omit the filling and form the upper surface of the block of hardened polished metal. The said punch-block is connected to a sliding bar i2, arranged to slide in a groove the front ot the machine and intersecting the path of movement ot' the sets.' The punchblock is held normally between the two sets and in the path of movement thereof by a coiled spring i, placed in a socket in the support c and having its outer end bearing against a downwardly-projecting cam i?, secured to or forming a part ot' the slide or slid- The lower end of the cam 7 is curved, as shown, to be engaged bya second cam t8, secured in a groove in the upper end of the plunger d and sliding in a groove a, formed in the arm a3, and hence when the lower set is raised-the cam 'is engages the cam 7 and forces the punch-block into inoperative position out of alinement with the two sets, whereby thelatter can coact in setting an eyelet in the work.

Assuming that the upper set and the lower set are at their upper and lower extremes of movement, respectively, and that the spring i is holding a punch-block in its normal position between them, as shown in Fig. 4, the operation of the parts is as follows: The upper set or member c is depressed to cause its cutter to approach the punch-block or transversely-sliding member land perforate the work. At this time the feed-slide is at the extreme of its movementl in the direction of the feed and the work is clamped thereagainst by the presser-foot. As soon as the cutter perforates the work it is lifted slightly to relieve the pressure on the die or punch-block, but not from engagement with the work, and the lower set begins to rise. As it continues its upward movement the cam s engages the cam i7 and forces the die or punch-block into the position shown in Fig. 5. As the lower set rises the pin dl takes an eyelet from the chute and carries it with it upwardly and with the aid of the upper end of the set forces it through the work with the skirt downward. As soon as the eyelet is well into the work and the lower set is again descending to set the eyelet the presser-foot is raised, and it and the feeding-slide are fed to their extreme of movement in a direction opposite to the line of feed, as shown in Fig. 6. As the lower set then beginsto descend the stop fi leaves the lever f S and rod f 3 and permits the presserfoot to descend and engage the work between IOO ITC

IIS

' it and the feed-slide, after which the slide is fed in the direction of feed to carry the work forward for the formation of another aperture. The descent of the lower punch also causes the cam s to release the cam 'i7 and permit the punch-block to be fed forward to again coact with the upper set or member for the formation of an aperture in the work.

It will be seen from the foregoing description that I have provided a machine possessing a minimum number of parts, each simple in form and easily constructed, while at the same time the efficiencyof the machine is increased over those heretofore constructed or proposed.

Having thus explained the nature of the invention and described a way of constructing and using the same, though Without attempting to set forth all of the forms in which it may be made or all of the modes of its use, I declare that what I claim isl. A punching and eyeleting machine comprising a combined punch and set having a tubular cutter and an annular clenchingshoulder, an anvil or punch-block having a solid surface with which the cutter may coact in perforating the work, a lower set having a spring-pressed pin adapted to engage an eyelet, a roadway adapted to deliver eyelets below the work to the spring-pressed pin, a shaft, a cam on said shaft for effecting the engagement of the cutter on the punch and the punch-block, means for reciprocating the lower set, and a work-support located substantially in the plane of the anvil or punchblock when the latter is in operative position, and provisions for imparting a step-by-step movement to the work.

2. An eyeleting-machine comprising a combined punch and set having a tubular cutter with provisions for the upward discharge of cuttings and an annular clenching-shoulder, a movable anvil having a solid surface adapted to coact with the cutter in effecting the perforation of the work, means whereby the cutter and punch-block are brought into contact and one of them is then moved out of the path of the punch, a lower set adapted to cooperate with the annular clenching-shoulder on the combined punch and set, means for reciprocating the said lower set, a springpressed pin on said lower set adapted to receive an eyelet, a raceway adapted to deliver eyelets below the plane of the work to said pin, and provisions for effecting a stepby-step movement of the work, substantially as described.

3. Apunching and eyeleting machine comprising a combined punch and set having a tubular cutter and an annular clenchingshoulder, an anvil or punch-block having a solid surface with which the cutter may coact in perforating the work, a lower set having a spring-pressed pin adapted to engage an eyelet, a roadway adapted to deliver eyelets below the work to the spring-pressed pin, a shaft, a cam on said shaft for effecting the engagement of the cutter on the punch and the punch-block, means for reciprocating the lower set, a work-support located substantially in the plane of the anvil or punchblock when the latter is in operative position, and provisions for effecting a lateral relative movement of the anvil or punch-block and the said combined punch and set.

4. An eyeleting-machine comprising three cooperating movable members constructed and arranged to perforate the work and set an eyelet therein, said members consisting of a die or punch-block and two sets one of which is formed with a cutter in its operative setting end to coact with said block, the other having means for carrying the eyelet, means for feeding the work, and means for moving one of said members bodily in the direction of the feed of the work. Y

5. An eyeletingmachine comprising two cooperative sets of which one has a cutter in its operative end, a laterally-movable punchblock or die, and connections between the non-cutting set and said die or block whereby the latter is actuated by the former.

6. An eyeletingmachine comprising two coperative movable sets of which one has a cutter in its operative end, the other having means for carrying the eyelet, means for moving the sets toward and from each other, a punch-block o r die, means for causing the registration of the cutter-carrying set with said die or block, a presser-foot, and mechanism for causing said presser-foot and said sets to engage the work intermittently.

7. An eyeleting-machine comprising two cooperative movable sets of which one has a cutter in its operative end, the other having IOO IOS

means for carrying the eyelet, a punch-block or die adapted to coact with said cutter-carrying set in perforating the work, means for feeding the work, and means on one of the sets for moving said punch-block or die out of the lines of movement of the sets.

8. An eyeleting-machine comprising a combined punch and set having a tubular cutter and an annular clenching-shoulder, a lower set having a spring-pressed pin adapted to engage an eyelet, an anvil movable into and out of the lines of movement of the sets, and a cam on the lower set for moving the anvil.

9. An eyeleting-machine comprisinga combined punch and set havingatubular cutter and an annular clenching-shoulder, a lower set having a spring-pressed pin adapted to engage an eyelet, an anvil movable into and out of the lines of movement of the sets, and a cam on the lower set for moving the anvil in one direction, and a spring for moving the anvil in the opposite direction.

In testimony whereof I have affixed my signature in presence of two witnesses.

MARCUS I3. MAY, C. C. STECHER.

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