US1178750A - Riveting-machine. - Google Patents

Description

B. E. PORTER & H. 0. NO RRI'S. R IVETING MACHINE. APPLICATION FILED mu. 2. 1915.

Patented Apr. 11, 1916.

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WITNESSES. INVFNTDR5,

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IFIEL'? THE COLUMBIA PLANOGRAFH cm. WASHINGTON. n.

. UNITED emmema QEHICEQAI BURR E; PORTER AND nEN YoivORRIs-OF CELESTE, rnxAsgsarn NORRIS AssrGnOR;

- To all whom it may concern: 7

T0 SAID PORTER.

' 'BIVETING-MACHI-NE."

Specification Of Letters Patent.

" Application filed January 2,1915. Seria1No.76.

Be it known that we, BURR E. PORTER and HENRY O. NORRIS, citizens of the United States, residing at Celeste, in the county of Hunt and State of Texas, have invented certain new and useful Improvements in.

Riveting-Machines, of which the following is a specification.

Our inventlon relates to new and useful improvements in riveting-machines, and one of its obects is'to provide a machinefor riveting metal binding and protecting strips,

or fastening clasps, upon coin purses, pocketbooks, hand bags, and similar articles.

It is further the object of our invention to provide a machine which will cut off and clench any suitable rivets, and nails or pins used as rivets, that maybe employed-tosscure one or more metal binding strips of any desired shape in place upon a piece of wood", leather, paper, papier. mach, cloth or any fabricated material, or combination of fabricated materials. Finally it is the providea simple, durable, and comprehensive construction whereby a riveting-machine of this type shallbe convenientlyoperable,

- and rapid and efficient in the performance of its work.

With the above and various other. objects in view, our invention has'relation to certain novel features of construction, and use, an example 'ing specification and illustrated in the accompanying drawings,;wherein:

Figure 1 is a side elevational view of .a

riveting machine, embodying main features of our invention. Fig. 2 is a front elevation of the same. Fig. 3 is a top plan view of the machine as awhole. Fig. 4is aneularged view of the cam-block with rollers and supports taken onthe line .A-A, of Fig. 1, for a small machine. Fig. 5is a top plan view of the cutter-bars, taken on the line B B, of Fig. 1, showing the interlocking construction, the cam-block supports and and the method of securingathe cutters to the cutter-bars to guarantee their definite positive movement therewith. Fig. 6 is a sectional view taken onthe line 0-0, of 5. Fign7'is a sideelevation of one of the rivet cutters. .Fig. 8. is a' projected .view of the cutter shownin Fig. 7.

Referring now more particularly to the drawings wherein like: reference characters object of our invention to v of which is'discussedin the followthe base ,lj of the frame work of the machine :PatentedApr. 11,19 16.

designate similar in all of the figures,

is adapted .to be screwed or bolted, to a}.

bench or similar support, through apertures 2; 3 is theanvil holder, connected with the. hammer-journal 4:, by a rib 5 ,f which'has a projecting arm 6, for supporting the ham-r,

mer-guide 7 a bracing and supporting arm i 8 extends from thehammer-journa'l 1 rearward and dQWIIWQId t O the'base, and an apertured horizontal cross-bar .9 connects arm.& with rib 5- andserves to increase the rigidity of the frame. 1

A c lindri'cal rod 10, designated to have a I vertically reciprocating motion through is slotted to receive the upper, flattened,

apertured end of bar 10, and to be moved thereby. by meansofthe capscrew 19 inserted therethrougha The fulcrum;end-18 ,of hammer-arn1'18 .is bifurcated to receive an oscillatory fulcru'm link 20, the flattened, apertured end. of whichis secured in'place by cap-screw 21, the other apertured, bifurcate end of link 20, .beingsecure'd to the frame work, by means ofcap-screw 22. The end'18 of ham: Iner-arm l8isbroadlybifurtzate, the bifurcations having slots 23, in which" diametrically opposite projecting cap-screw pins 2 1 attached to a cylindrical hammer-sleeve; 25,

are designed. and adapted to-move laterally and. scillativelytherein, for'actuating the sleeve and thereby the verticallyreciprocating'cylindrical riveting hammer 26. The

ham'mer-sleeve25 in actuating hammer, 26

has limited oscillatory movement between set-collars .27 and 28 which are rigidly fixed upon the hammer at desired points by means of set- sjcrews 27 and 28 respectively. Between the hammer-sleeve 25 and set-collar 28 is placed a helical spring29, the function of Which will be hereinafter explained.

Theriveting hammer 261s provided with an apertured weight 30 at the'topvendywhich is secured thereto by meanswofaset-screw 30 The hammer extends through set- collar 2,7, 'sleevei25, spring 29, set-collar 28, hamliner-Journal 4i, and hammer-guide 7, and

terminatesin a .frustunishaped riveting-end 1 V 31. At a definite distance from end 31, the hammer is annularly grooved as at 32, the

purpose of the groove being to engage the conical end of a cylindrical pin 33 whichis constantly pressed against the hammer by a helical spring 34, designed and adapted to be held in a threaded aperture, or socket, of a boss 4 which is integral with the hammerjournal 4, the tension upon which spring is adjustable by means of the threaded, knurled sleeve 35, and maintained at any desired value by means of the knurled locknut 36.

The hammer-guide 7 is machined transversely and tapped at the lower end, to take a flat apertured yoke 37 which is fastened thereto by means of two machine screws 38, having their heads countersunk flush with the front surface of the yoke. This yoke serves as the front end support of two, oscillating stub-shafts 39 which extend rearward through apertures in the rib 5, constituting a rear end support, said two shafts having thereon two set-collars 39, for positioning them longitudinally, two similar but oppositely disposed cams 40 secured thereon by keys, or other suitable means, and two oppositely disposed cutter-bar actuating levers 41, fastened to the shafts by set-screws 41*, said levers being apertured and threaded to admit the round-head adjusting screws 42 which are maintained in the required position by means of lock-nuts 42 The apertured yoke 37 further carries a cylindrical pintle 43, which is designed and adapted to support the oscillating cutterbars 44, through the functioning thereon of the bipartite hinge joint portions 44, which are held in place by the engagement of threads in nut 45 with threads upon the pintle, said cutter-bars being normally retained against the adjusting screws 42, by means of two similar helical springs 46, one end of each of which is fastened to the outer end of each of the cutter-bars by an eyebolt 47 screwed into a threaded aperture in the bar, and to the end of one of a pair of rigid rods 48, which rods are screwed into a threaded portion of the frame at 48, whereby they are held horizontally in position above the cutter-bars, the fastening of the helical springs thereto being effected through apertures 49 near the ends of same. The cutter-bars 44 are designed and adapted to support the two complemental apertured cutters 50, which have projections 5O machined thereon to fit into recesses 44* in the cutter-bars, and are held rigidly in place by means of fillister-head screws 51 inserted through the apertures 50 in the cutters, into threaded sockets 44 in the cutterbars.

Upon the vertically reciprocating rod 10 is fastened a roller cam-block 52, by means of a set-screw 52 the steel rollers 52 being journaled for rotation on the threaded sorew-pintles 52. It will be observed that the function of this cam-block in being moved downward, is to separate the cams 40, move stub-shafts 39, thereby depressing adjusting screws 42 upon cutter-bars 44, and forcing the jaws of the rivet cutter together to cut off a rivet; still further movement of the cam-block downward allows the cams 40 to be returned to their original position by means of the helical springs 46 which are acting in tension upon the cutter-bars.

The movable anvil 53, is designed and adapted to have a reciprocating motion within the anvil holder 3, and has a slight depression 53 at the top end, and a round head at the lower end 53 which is intended to support the lower end of a helical spring 54 surrounding the anvil, and bear at its upper end against a portion of the frame base 1. Directly underneath the center of the head of the anvil 53 a cam 55 is held in position for actuating the anvil vertically, by means of a supporting bracket 56, which is riveted at one end to the underside of a portion of frame base 1, and which holds the cam 55 in oscillative position at the other end by means of a bolt 57. A cap-screw 58 secures a lever arm 59 thereto, which is threaded at the lower end to engage the threads of an adjustable sleeve 60 which is fastened to a treadle bar 61 by a bolt 61 One end of a helical spring 62 is hooked into an aperture 62 in one end of a lug 63 which is capscrewed into contact with the lower side of a portion of base 1, the other end of said spring being hooked into an aperture in a distance bar 64 which is secured to treadle-bar 61 by means of a cap-screw 65, and thereby holds the treadle end 61 normally at a convenient distance above the floor for actuation by the foot. One end of a helical spring 66 is hooked into an aperture in lug 63, and the other end is hooked into an aperture in a distance bar 67 said distance bar being connected with treadlebar 16 by means of a bolt 68, and holds said treadle-bar 16 in such position that when treadle 61 has been depressed a predetermined distance, the treadle will engage the end of treadle-bar 16, and both bars 16 and 61 will be depressed together for the required distance to serve the purpose of properly operating the machine as will be hereinafter fully explained. Treadle- bars 16 and 61 are movably secured at one end to a 4 floor-bracket 69, by means of a bolt 70, said floor-bracket being apertured and adapted to be fastened to the floor by means of coachscrews 71, or some other suitable means.

The treadle 61 carries as at 61 a plate which, when the treadle 61 is depressed for a certain distance, strikes upon and depresses the treadle 16 and and this plate 61 carries a hook 72 projecting from the plate 61 below the free end of treadle 16 and extending under the same. It follows that the treadle 61 in its upward movement, will at a certain limit of motion catch, through hook 72, the. treadle 16 and carry the same upward with it to thereby raise the mechanism controlled by treadle 16 to inoperative position.

The operation of the machine is as follows :-The rivet is first inserted through the parts to be'riveted together and is of a length to project some distance beyond the material. The work and rivet arethen centered upon the movable anvil 53 with the head of the rivet resting in the depression treadle 16 against the tension of its spring 66. The treadle 16 now depresses the bar 10 which in descending will, through cams.

4.0 and levers 4.1, first operate the cutters to cut the rivet to required length. As the treadle 16 continues to descend, the le: vers 41 are released and under spring ten sion open to permit the further operation of heading the rivet by means of the descending hammer 26. .The hammer 26 does not begin to descend upon the initial movement of bar 10 because said bar 10 first depresses the hammer arm 18 and its bifurcated end 18 slides the hammer sleeve 25 some distance along the hammer 26 against the tension of spring 29 before the hammer sleeve can operate upon the set collar 28 to operate the hammer. The movement upward of the hammer sleeve 25 is facilitated by the return of treadle 16 under tension of its spring 66 as well as the recoil of the spiral. spring 29 on the hammer 26.

Having thus described the nature andob- I jects of our invention what we claim as new is 1. In a machine of the character deanism for the hammer.

scribed, a hammer comprising a reciprocating rod, a hammer sleeve sliding on said rod and having a limited oscillation movement thereon, a. spring interposed between the hammer sleeve. and hammer rod, an arm adapted to slide the sleeve in one direction against the tension of the spring, cutters oscillating in a plane traversing the plane ofreciprocation of the hammer, and means controlled by the movement of the hammer for oscillating said cutters.

2. In a machine of the character described, an anvil, a hammer, comprising a reciprocating rod having a frusto-conicalriveting end, a hammer sleeve sliding on said rod, andhaving alim'ited oscillatory movement thereon, a spring interposed between the hammer sleeve and hammer rod,

and a hammer arm adapted to slide the hammer sleeve in one direction against the tension of said spring to move the hammen toward said anvil.

3.111 a machine of the character described, an anvil and a treadle mechanism for reciprocating said anvil combined with a hammer and a treadle mechanism for reciprocating the hammer toward and away from said anvil, and means, carried by the treadle mechanism for said anvil, adapted to control the operation of the treadle mech- 4:. In a machine of the character described, a reciprocatinghannner, a rod controlling during a period of 1ts movement the reciprocation of said hammer, cutters oscillating in the path of said hammer, and

a means controlled by the rod whereby during the period of movement of "sald rod when said hammer is not operated, the oscillating cutters are operated.

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

BURR .E. PORTER. HENRY O. NORRIS. Witnesses: v

J. W. EWING, A. W. EWING.

copies of this patent may be obtained for five cents each, by addressing the ficommissioner of Patents,

Washington, 20.0.

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