US126159A - Improvement in machines for feeding and inserting rivets in boots and shoes - Google Patents

Description

GEORGE V. SHEFFI'ELD.

Machine for Feeding and inserting Rivers in Boos and Shoes,

Patented April 30, i872.

Nok 1261549.

GEORGE v. SHEEEIELD, OE BOSTON, MASSAOHUSETTS,ASS1GNOR To SIM- EON s. OOOK, OE WOONSOOKET, RHODE ISLAND.

IMPROVEMENT IN MACHINES FOR FEEDING AND INSERTING RIVETS IN BOOTS AND SHES.l

Specification forming part of Letters Patent No. 126,159, dated April 30, 1872.

-To all whom it may concern:

Be it known that I, GEORGE V. SHEEFTELD, of Boston, in the county of Suffolk and State of Massachusetts, have invented a new and usef'ul Improvement in Machines for Feeding and Inserting Rivets in Boots and Shoes; and I do hereby declare the following is a full, clear, and exact description ofthe same, reference being had to the accompanying drawing and letters of reference marked thereon, making a part of this specification, in which- Figure l is a side elevation of my invention. Fig. 2 is a sectional elevation of the same, and Fig. 3, a view of a portion detached.

This invention relates to the attachment of soles to boots and shoes-by rivets, said rivets being driven by atmospheric pressure into orices made in the sole 5 and it consists, iirst, of an air-compressing cylinder, having a piston operated by the main driving-shaft, and communicating through a bent tube and a pivoted horn with a point directly under a punching-needle or reamer; second, in a hopper or reservoir located on said tube, and communicatin g with the interior of the Same, said hopper containing rivets, which are caused by a guiding device to fall longitudinally into said tube with their points toward the upper eX- tremity ofthe same; third, of a plate, pivoted eccentrically on the end of the goose-neck or bent standard, and provided with ways in which slides a vertical cross-head' containing the punching instrument, to which latter a vertically-reciprocating motion is imparted by a cam attachment to the main shaft, the same cam imparting a lateral motion to the pivoted plate, together with the awl or reamer at the proper time, in such manner as to cause the latter to perform the function of a feed-bar to the work, which rests on the top of the pivoted horn. The details of construction and method 4of operation will be more fully described hereinafter.

In the drawing, the frame-work of the machine consists of two bent standards, D D, which are placed side by side, and connected at the front and rear by the cross-pieces D1 D2 and e, said frame-work resting on legs E. Between the upper ends of the standards D is a horizontal driving-shaft, F, which is journaled in the cross-pieces e D2, and is provided which is pivoted eccentrically'by the screew la,

Fig. 3, to the outer side of cross-piece D2 on the ends of standards D. Said plate is pro- -vided with vertical ways, in which slides a cross-head, N, which is provided with an awl, reamer, or other punching instrument, O. In the center of plate M is a circular orifice, h, into which projects the cam a of shaft F, which cam engages with a tooth, j, projecting from the plate M in such manner as to give said plate a slight laterally-vibratin g motion. The plate M is held in place, when not thus actuated, by a spring, m, and a pin or detent, 1*, which bears againstthe lower edge of one ofthe standards D. ,The cam n is provided with a projecting pin, n', which engages with an elongated transverse slot in the cross-head N, and imparts a vertically-reciprocating motion thereto. o represents an air-compressin g cylinder, located at the rear of standards D, below the disk g. Said cylinder is provided with a piston d, the rod d of which is eccentrically connected by rod i to disk g.

The bottom of cylinder c is provided with a tube or extension, b', which projects downward, and opens into the box or cylinder C. This latter communicates with a horizontal tube, B, which is bent upward at the opposite end, and is connected to a pivoted horn, L, which is located in the portion D1 of the framework, and terminates immediately under the awl O. The interior of horn L is provided with an extension of tube B, to which latter it is connected in such manner as to admit of its free revolution, as shown in Fig. 2. VArepresents a magazine or hopper, which is located on a collar, b, which embraces tube B and slides freely thereon. The collar b is provided on its upper side with an openin g, f, which corresponds with a similar opening in the ktube B, through which openin gs the rivets drop from hopper A. The hopperA is widest at its upper part, the portion a? being only of sufficient width to allow the shank of an ordinary rivet to pass through it longitudinally. The part al is open at both ends, one end being curved, and provided with a guard or guide, al, which is parallel with the curved edges of part a, the space between them affording a conrFroE.

d uit for the heads of the rivets, which project laterally, thus insuring the depositing of the rivets in the tube B in the correct position-4. e., with their points toward the terminus of the horn L. The hopper A is provided With an arm, G, which is connected by rod H to the long arm I.' This latter is provided withaclasp, which surrounds the cam K on shaft F, and is operated thereby in such manner as to impart a reciprocating motion to hopper A, thus alternately connecting and separating the openings in collar b and tube B. The tube B and horn L are so arranged as to be raised or lowered as desired, and may be provided for that purpose with a treadle, E, as shown in Fig. l. In case the puncturing instrument O be a ream er, it may be revolved by passing a belt around pulley U.

Operation.

The hopper A is supplied with rivets, and the boot or shoe placed on the horn with the terminus of the saine against the inner surface ot' the sole. Power is imparted in any suitable manner to the shaft F, the cam of which imparts a reciprocating motion to the crosshead N, as above described, and causes the awl or reamer U to peri'oi'ate the Work on the horn L. At the saine. moment that this is accomplished, and t-he instrument O is sufficiently withdrawn to admit of a clear passage from the tube B through the newly-made orifice, the air from cylinder c, which is compressed by the downward movement of piston d, drives the rivet which has been deposited in the tube B from hopper 'A along said tube, through horn L, and into the said oritice in the Work, the collar b meanwhile closing the opening in the tube, thus acting as a valve. The cam n now engages with the tooth or projection j of plate M and swings the same downward, as indicated in dotted lines in Fig. 3, thus causing the instrument O to feed the Work along for the next operation, thereby closing the mouth of the horn L. Before the next descent of the instrument O the hopper A is moved along by the cam K, Src., over the orifice in tube B, depositing another rivet therein, and again closing said orifice-the parts being so arranged, however, that when the piston d descends the orifices in the tube B and collar b are closed, and when said piston is ascending they are open, thus admitting air to fill the lower part of cylinder c. The operation is continued in this manner, each perforation in the work being lled immediately by a rivet, as described, the rivets being subsequently upset or secured by any suitable means.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

l. The combination of tube B, hopper A, air-compressing cylinder c, feedplate M, and shaft F, all arranged and operating substantially as described.

2. The fred-plate M, pivoted eccentrically, having orifice h, and tooth j, and provided with cross-head N and instrument 0, in combination with shaft F, cam n, and pin a', substantially as described.

3. The hopper A, having guiding devices a al a2, substantially as described.

GEORGE V. SHEFFIELD.

Witnesses:

ALBERT Gooif, ,c EDWIN ALDnrcu.

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