US39675A - Improved hub-machine - Google Patents

Description

UNITED STATES PATENT QEEICE.

J. B. BIPSOM, 0F EAST KENDALL, NEW YORK.

IMPROVED HUB-MACHINE.

Specification forming part of Letters Patent No. 39,675, dated August 25, 1863.

To all whom t may concern.:

Be it known that I, J. B. RiPsoM, of East Kendall, in the county of Orleans and State of New York, have invented certain new and useful Improvements in Machines for Centering and Boring Hubs; and I do herebydeclare that the following is a full and exact description thereof, reference being had to the accompanying drawings, making part of this specification. y y

Figure 1 is an elevation of my improved arrangement applied to a wheel, the whole being represented as mounted in a frame for the purpose of centering; Fig. 2, a plan of the same removed from the frame; Figs. 3, 4, 5, 6, and 7, views of parts detached.

Like letters of reference indicate correponding parts in all the gures.

The design of my improvement is to render the centering of the hub, with the wheel se-` cured thereto, expeditious and easily accomplished, and when thus arranged to bore the conical hole for the reception of the box so truly that little or no wedging of the same is required, and it iits centrally and accurately.

In the drawings, A represents the rim of a wheel, a its hub, and b b the spokes. A central hole is first bored through the hub, by any ordinary means, of sut'cient size to receive a shaft or rod, B, which serves the double purpose of suspending the wheel, together with its apparatus, in a frame, Fig. 1, for centering,

1 and as the operating-shaft of the cutters, as

will presently be described. One end oi' the hub rests against a block, C, which serves as the base of the apparatus. On the opposite side of the wheel, at a suitable distance, is situated a ring, D, or its equivalent, Figs. 1,2, and 3, provided with three, four, or more lugs, c c c, to which are jointed adj u sting-barsE E E, diverging as they extend downward, and having suitable notches, d d, or some equivalent form, which iit over the edge of the rim ofthe wheelto' brace against the same. These bars are made adjustable, so as to be adapted to wheels of diiiercnt sizes, and the construction exhibited in Fig. 4 is a convenient one. This consists of a base-piece, j', provided with a suitable groove, in which slides a sliding bar, g, tightened by a set-screw, lz., which passes through a longitudinal slot in the sliding bar. By this means the device may be lengthened or shortened at pleasure. Any equivalent arrangement that will secure the same result may be employed. Two of the bars opposite each other have sta-plest' t', Fig. 1, secured near their upper ends, into which hook adjustable connections G G, extending downward and connecting with projections 7c 7c of the block C. Thcse connections consist of three parts-the hook-rod l, elongated nut m, and screw n. The hook-rod forms a swivel-joint with-the nut, as shown most clearly in Fig. 5, and the latter turns on the screw, so as to easily .adjust the length of the connection. The lower end of the screw-shank is provided with a cross-head, o, Figs. l and 5, which iits into notch,p, in the end of the projection 7a, so as to retain the parts together. As the angle of the conA nection G G necessarily changes according `to the size of the wheel, to prevent the crosshead being drawn out by reason of the inclination, I provide the projections la lc with shoulders q q, against which the cross-heads rest. Byineans of this arrangement it is manifest that the wheel is firmly clamped in place by resting against the block C on one side and by the pressure of the adjusting-bars E E on the other, and that the arrangement is equally adapted to large or small wheels. rllhe means employed is very simple7 convenient, not liable to disarra-n gement, and easily adjusted. vWithin the ring D is situated an independent center, H, Figs. 2, 3, and 6, which forms the bearing of the shaft B. This center is connected with the ring by means of three, four, or more screws, 'r r r, or equivalent, which pass through the ring and adj ust against the center, holding it in place irinly. By this means it is obvious that the center H may be adjusted exactly as desired, either to one side or another relatively with the ring, and consequent] y, as the wheel is connectedwwith the ring alone, and the shaft with the center, the position ofthe wheel andthe shaft (which latter is the axis on which it turns when suspended, as iu Fig. 1) can be adjusted so that the rod will pass directly through the center of the hub. Any test of the true position ot' the wheel when centered may be employed, a convenient one being a block, (shown by red lines at t, Fig. 1,) which just touches the rim ot' the wheel. It thc wheel is true, the riin when revolved will touch the block all the Way around. By the employment of this arrangement I am enabled to center the wheel truly preparatory to boring, so that the latter action can vbe accomplished quickly and exactly. Just above the hub the shaft is provided with a cutter, K, Figs. 3 and 7, of sufficient length to correspond with that of the largest-sized hub to be bored. This cutter is attached to the shaft by means of tighteningscrews au at opposite ends, which pass through slots in the cutter, by which means the latter can be adjusted forward or backward to any suitable degree. By adjustingthe edge ofthe cutter at an angle, as represented, it is apparent that it will eut a conical hole in the hubl as it is fed down. Above this cutter is situated a small knife, L, whose position is atri ght angles 10 the first, and whose oliice is to cut the opening forming the shoulder at the end of the hub. By adjustingthis out or in it is adapted to cutting an opening ot' a greater or less diameter. The upper end ot' the shaft is provided with a handle, I, for operating, and is also cut With a screw-thread, s, for feeding the cutters to the work; but this screw-thread, instead of acting in the cutter H itself, acts in a removable nut, c, Figs. 2, 3, and (i, which fits in. a suitable bed i-n the center, andis held down-by a pivoted button or catch, u', or any convenient arrangement. Whendesirableto remove chips, or whenthe hub isbored entire, by turning the button from over the nut thelatter is freed and the cutters may be drawn out without impediment ot' any kind. This arrangement is very convenient, as by its use the cutters may be withdrawn at any time without the trouble and delay of turning back the shat't.

This machine is very convenient and effective for centering' and boring wheels, and saves all the trouble and difficulty otl iitting the boxes in place and wedging them that is usually experienced when the hole is not bored true.

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

l. Clamping and sustaining the wheel in place by means of the adjustable bars E, connected with the ring D or its equivalent, the adjustable connections G, and the block C, arranged, combined, and operating substantially as herein set forth.

2. In combination with the connections G, arranged as described, and the block C, the projections k 7c, provided with notches p p and shoulders q q, and the cross-heads o o of the screwshanks, tor the purpose of retainingsaid connections in place at any inclination, substantially as herein specified.

3. The combination of the ring D, independent center H, and adjusting-screws r r r or equivalent, relatively to the shait B and the wheel, for the purpose ot' perfectly centering the latter,substantiallyas-herein described.

4. In combination with the screwfshaft B, provided with cutters K L and the center H, the removable nut o, for the purpose of easily removing the cutters from the bore, substantially as herein set forth.

5. The special arra ngementand combination of the whole machine, as herein set forth.

In witness whereof I have hereunto signed my name in the presence of two subscribing witnesses.

j J. B. RIPSOM.

Witnesses:

SUMNER AUs'rIN, ORoMEL H. BALL.

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