US403348A

US403348A - Hand riveting-machine

Info

Publication number: US403348A
Authority: US
Publication date: 1889-05-14
Anticipated expiration: 1906-05-14

Description

(No Model.)

1:". H. HARRIS.

HAND RIVETING MAOHINE. No. 403,348. Patented May 14, 1889.

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N. PETERS Phoio-Lilhcgnphar. Wishingim D. C.

' '-UNITED STATES PATENT ()FFICE.

FRANK H. HARRIS, OF AUBURNDALE, OHIO.

HAND RlVETlNG-MACHINE.

SPECIFICATION forming part of Letters Patent No. 403,348, dated May 14, 1889.

Application filed October 31, 1888. Serial No. 289,639; (No model.)

To all whom it may concern.-

Be it known that I, FRANK H. HARRIS, a citizen of the United States, residing at Auburndale, in the county of Lucas and State of Ohio, have invented certain new and useful Improvements in Hand Riveting -Machines, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to a new and useful improvement in hand riveting-machines especially designed for riveting the ends of the wire spokes of iron wheels to the rim of the wheel; and my invention consists in the peculiar construction and arrangement of the difierent parts, whereby the machine is especially adapted for that class of work, all as more fully hereinafter described, and shown in the accompanying drawings, in which- Figure 1 is a side elevation of my improved machine. Fig. 2 is a front elevation thereof,\showing in dotted lines the operation of the device in connection with an iron wheel. Fig. 3 is a plan of the device detached from the frame of the machine, and Fig. 4 is an inside elevation of one of the jaws of the vise.

A represents a table or bench upon which the machine is mounted.

Bis a vertical standard or frame which supports the operating devices of the machine, and which is made of suitable strength, being preferably cast of iron in one piece and provided with a foot, 0, by means of which it may be firmly secured by suitable bolts, D, on top of the work-bench near the front edge thereof. This frame has transversely j ournaled in its overhanging top portion a shaft, E, to one end of which the hand-lever F is secured, while the opposite end is provided with an eccentric, G. Upon this eccentric engages the eccentric-rod H, held in place upon the eccentric by means of the washer I and screwbolt J. To the lower end of the eccentric-rod is secured the vertical reciprocating holder K of the riveting-tool. This holder passes through the vertical bearing L on the standard or frame, and is provided with a socket in its lower end, in which the riveting-tool M is detachably secured in the usual manner.

N is a vertically-reciprocating pressurefoot centrally notched or apertured to loosely embrace the riveting-tool and vertically and slidingly secured with its shank in a suitable vertical guide-bearing, L, on the frame of the machine. The upper end of this pressure? foot is pivotally secured to one end of the lever 0, which is fulcrumed tothe standard, and by means of a rod, P, is connected to a foot-lever, Q, all so arranged that whenever the operator steps onto the foot-lever the pressure-foot is depressed and automatically restricted by the spring R as soon as the operator releases the foot-lever.

S is a clamp or vise horizontally and detachably secured by means of the bolts a to the standard of the frame, near the foot thereof. This vise consists of a stationary jaw, b, which is bolted to the standard by the bolts a, heretofore described, and of the movable jaw c, pivotally secured to the stationary jaw by means of the removable pivot-pin d. The forward ends of both the stationary and movable jaws are V-shaped, with the inner or clampingfaces vertical and parallel to each other, as shown in Fig. 2.

Into the forward end of each jaw is detachably secured a steel die, T, and a spring, 6, placed between the stationary and movable jaws, normally operates to open the jaws by its tension. A shaft, f, is j ournaled transversely through the front end of the jaws and the foot of the standard, and is provided at one end with the adjusting screw-nut g and at the opposite end with the hand-lever h, screwthreaded upon the shaft, all so arranged that by turning the lever to the front the jaws of the vise are closed, and by throwing it backward into the position shown in Fig. 1 the jaws of the vise are opened a sufficient distance to admit of the insertion of a wire spoke, as more fully hereinafter described.

Below the front end of the vise is secured a suitable frame, 2', provided with a central vertical slot, j, in which is slidingly mounted the wheel-support U, from the face of which projects a stop-shaft, V, detachably secured thereto and adapted to engage into the hub of the iron-wheels to be operated upon by the machine. This wheel-support U can be vertically raised and lowered by means of a vertical adjusting-screw, W, mounted back of the slot in the frame and having a screw; threaded engagement with a lug, 7c, on "='the-.,,

rear of the wheel-support. The hand-wheel] is provided for on the bottom of the adj ustin screw to operate the screw, and a scale or index,'m, provided for upon the frame Lindicates the vertical distance from the center of the stop-shaft V to the top of the vise.

In practice, the parts being constructed and arranged as described, the machine is designed to operate as follows: An iron wheel of the description for which the machine is designed and having its wire spokes loosely engaged into the iron rim of the wheel is engaged wit-h its hub on the stopshaft V of the wheel-support, and the latter is then so adjusted as to allow the tire of the wheel to rest on top of the vise to form the anvil in riveting. One of the spokes of the wheel is then engaged into the jaws of the vise between the steel dies and clamped fast therein by the operation of the lever 7b. The

operator then places his foot on the foot-lever Q, thereby forcing the pressure-foot down upon the rim of the wheel, and then, grasping the lever f, throws such lever forward to cause the riveting-tool to descend upon the end of the spoke and thereby rivet-head it. The spoke thus finished is then disengaged from the vise and the operation repeated with the next spoke until all the spokes are operated upon in such manner.

My machine is especially adapted to be used for doing the work described with wheels of all sizes, and to this end the following special provision has been made in the construction of the machine:

First, the ready and exact vertical adj ustability of the wheel-support U is intended to admit wheels of larger or smaller diameter by raising and lowering such wheel-support. At the same time, by means of its index, it forms an accurate catch, whereby the wheel is made of the exact diameter indicated on the scale, and, moreover, is made perfectly round. By having the adjusted hand-wheel l at the bottom the operator can use his hands and eyes simultaneously in adjusting the wheel-suppresence of two witnesses, this 14th day of port.

Second, the vise forms a separate and easilydetachable frame of the machine for the purpose of exchanging it for a heavier or lighter one, as the work is lighter or heavier. As in riveting the heavier spokes of larger wheels there is necessarily a strong vise required, I provide my machine with several sizes of vises adapted to be interchangeably secured to the machine and differing in the strength and form of the forward end of the jaws, the shape and form of which necessarily are conditioned by the size of the wheel and the distance the spokes are placed apart, as it is obvious that the jaws cannot be made thicker upon the ends than is necessary to allow them to proj ect through the intervals of the spokes.

By means of the adjusting-nut g on the shaft f of the vise the jaws may be adjusted to open and close within a fixed throw of the lever 71 to release and clamp the spokes, thus doing away with the inconvenience of changing the normal positions of the lever h for spokes of diiferent gage.

The vise ought to be constructed to give a quick action, so as to require but a limited movement of the lever h, and any other known construction to operate the jaws maybe sub stituted for the one shown and described.

lVhat I claim as my invention, and desire to secure by Letters Patent, is-

In a hand riveting-machine for the purpose described, the combination, with the frame 13 of the machine, of the vise S, detachably secured thereto and provided with a hand-lever, h, and adj usting-nut g, the reciprocating riveting-tool secured in a guide-bearing, L, on the frame of the machine, the actuating handleverF and its connections with the rivetingtool, the reciprocating pressure-foot N, secured in vertical guide-bearings of the frame, the actuating foot-lever Q and its connection with said pressure-foot, the frame e', provided with the vertical slot j and index m, the wheel-support U, slidingly mounted in the slot of the frame '5 and provided with the adj ustingscrew V, having the hand-wheel Z, and the stop-shaft V, carried by the wheel-support U, all combined to operate substantially as described.

In testimony whereof I aflix my signature, in

September, 1888.

FRANK II. HARRIS. \Vitnesses:

E. W. TOLESTON, A. E. KLAUSER.