US294628A - Felly-boring and spoke-tenoning machine - Google Patents

Description

. (No Model.)

- 1 E; M. JENKINS.

BELLY BDRING AND SPOKETENONING- MAG'NINB. No. 294,628. Patented Mar. 4. 1884.

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UNIT D STATES EDWIN MARVIN JENKINS,

' PATENT. OFFICE.

OF BROWNING, MISSOURI.

FELLY-BORING AND SPOKE-TENONING MACHINE. v

SPECIFICATION forming part of Letters Patent No. 294,628, dated March 4, 1884.

Application filed June 20, 1883. (No model.)

To all whom it mag concern:

Be it known that I, EDWIN MARVIN J ENK- ms, of Browning, in the county of Linn and State of Missouri, have invented a new and useful Improvement in Felly Boring and Spoke-Tenoning Machines, of which the following is a full, clear, and exact description.

Theinvention will first be described in connection with the drawings and then pointed out in the claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts mall the figures.

Figure 1 is a side elevation of my improved machine. Fig. 2 is a plan view, and Fig. 3 is an end elevation of a portion of the machine.

On any suitable bench I arrange a hollow mandrel, a, in bearings?) and c, to be turned by hand or power, to be applied by the drivingshaft d and bevel-wheels 6, said mandrel hav- 1 ing a balance-wheel, f, to steady the motion,

and in the hollow of the mandrel is a shaft, having a key-seat, h, its whole length, and being arranged to slide in the mandrel, to which it is. connected by a set-screw, 7;, to be rotated by it. This shaft gproj ects from the end of the mandrel into thehollow cutter andboring-socketj, and is firmly secured to it by a set-screw, 70, by which the socket may be shifted forward and backward along the shaft't'o regulate the length of the tenon or depth of the hole to be made, by sliding the socket and its tool forward and backward in its bearing lby the lever m, which has, a forked end embracing the shaft 9 between the end of socket j and a collar, j, that is secured to the shaft by a set-screw, to be shifted as the socket is'shifted. The shaft ghas a head or other stop at n, to limit its sliding movement in the mandrel a, and thus the length of the tenon or depth of the hole is regulated in accordance with the position to which the socket j is fixed on the shaft 9 by screw k.

The tenoning-tool consists of a hollow tenoning-head, o, with cutters p,which ,conneetsdetachably with the end of socket j, and is removable to insert a common auger for boring the fellies.

For holding the wheel-hubs containing the spokes to be tenoned, I have a self-centering hub-chuck consisting of a stock, q, jaws s, and

the right and left hand adjustingscrew I, mounted on the table uadjustably toward and from the tenoning-tool, and having a clampbolt, '0, to secure it, and between the hubchuck and said tenoningtool I have a spokeholder-consistingof a rest, w, and clamping-bar x,- the rest w being vertically adjustable in a socket-post, y, by a set-screw, z, and theiclampbar which is pivoted to the top of the rest at a is connected by a cord, b,witha1ev er, c,which is pivoted to the frame at d, and has a ratchet,

e, by which it is set-to press the clamping-lever on the spoke.

The table It is attached to a frame, f, that is held against the side of the mandrel-frame g by guide-clips h and i, andaclamp-bolt, j, and is arranged to be shifted up and down readily to set the hub-chuck q s, and also the fellyclamp Z in the proper relations with the toolsocket,- and said table It is also jointed to the frames f at m to swing down out of the way for economy of space when the machine is not in use. The curved brace n holds the table up in the working position, said bracebeing piv- .oted to the table at 0 and working in a slotted plate, p',with which it engages by a notch,

q, to secure the table in the working position.

The felly-clamp consists of the block Ic,with fasteningscrew s,to secure it in position on the table a, and the clamp-screw Z, by which the felly is secured on the rest a, to be heldto the boring-tool.

When the machine is to be used for tenoning spokes, the felly-clamp will be removed from thetable, the tool 0 1) being then used,and when the fellies are to bored the toolo p, spoke-rest, and the hub-chuck will be removed, the fellyclamp and a common auger being then used.

The frame f has a shaft, w, and pinion 00, mounted on it, for raising and lowering it by a toothed rack, 2, attached to frame 9.

Having thus described my invention, what I desire to claim and secure by Letters Patent 1s 1. The combination of the rotary hollow mandrel-=a, adapted-to carry atenoning-head or borin g'-bit, and a hollow cutter and boring-socket, j,with a shaft, 9, arranged to slide in said socket and mandrel and be screw-clamped thereto, having a key-seat along its whole length, and provided with a stop, "a, as and for the purpose described.

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2. The combination, with the table 11, of the chuck q s 011 a transverse right and left screw,

2, the clamping-bolt o, the rest 10, held at dif ferent adjustments in a socket-post, 3 by a 5 screw, 2, and arranged between the spokeholder and tool, the clamp-lever as, pivoted to the top of said rest, the lever a, connected by a cord with lever 00, and pivoted to the frame at d, and the ratchet c, as and for the purpose 1o specified.

3. The combination, with the chuck q s and fell yelamp in Z of a table, u, arranged to shift up and down to determine the relation of said Chuck and clamp to the tool-socket, as shown and described.

EDXVIN MARVIN JENKINS.

\Vitnesses;

THOMAS W. VANSEGGEN, WILLIAM P. TAYLOR.

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