US304598A - Traction-wheel - Google Patents

Description

(No Model.) v

W. M. BEINDORF.

TRAGTION WHEEL.

Patented Sept'. 2, 1884.

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WILLIAM M. BEINDORF, OF LITGHFIELD, ILLINOIS.

TRAcTloN-wHl-:EL

SPECIFICATION forming part of Letters Patent No. 304,598, dated September 2, 1884.

Application filed June 19, 1854.

To all whom, zit may concern,.- 4

Be it known that LWILLIAM M. BEINDORF, a citizen of the United States, residing at Litchiield, in the county of Montgomery and State of Illinois, have invented certain new and useful Improvements in TractioirWheels; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters and iigures of re erenee marked thereon, which form a part of this specification.

Theinvention relates to that class of wheels in which the necessary amount of traction is obtained by pins projecting outward from the circumference of the wheel; and it consists in making the tractionpins radially adjustable upon the wheel by connecting theirinner ends with an eccentric-ring surrounding an eccentrie-cam attached over the hub of the wheel, which cam may be rotated by proper mechanism fixed to the machine.

In the drawings accompanying and forming part of this specification, Figure l represents an end View of a machine with the invention attached, the parts broken away on one side to show the attachment of the eccentric-ring and pins. Fig. 2 is a View ot' one wheel with eccentric and pins att-ached, and Fig. 3 is a detail View of the gear-wheel and cam that carries the eccentric-ring.

In the accompanying drawings, A A represent the wheels of a traction-1nachine turning on the axle a, each of which wheels has a circumferential flange, a', extendinginward from its rim, and provided with proper Vholes at equal distances apart for the radial tractionpins to pass through.

a2 is a sleeve liXed over and bolted to the axle a, and c3 a3 are similar arms depending from the axle, which is iixed through their upper ends, having the sleeve a2 situated between them.

tis arod uniting the lower ends of the arms c3 a?, lying parallel to the axle mand provided a short distance within one of the arms a3 with a proper worm-wheel, c5, as shown in Fig. l.

a is a vertical shaft, provided at its upper (No model l itin its central bearing, a?, formed in a proper rearward projection on the sleeve a2 and vertically above the worm-wheel.

a8 is a worin on the lower end of the shaft a, by means of which and said rod the worm-wheel a5 is rot-ated. p

B B are similar pinions on each end of the rod c* outside the depending arms,and meshed with similar gear-wheels, C C, fitted on the inner ends of the hubs, as shown in Fig. l. Each gear-wheel C has on its inner surface the circular eccentric-cainD, as shown in Fig. 3. Vhile the gear-wheels C lit tightly enough on the hubs to rotate with the wheels, their position may be changed, if desired, by means of the described pinions and the worm-wheel and actuating-shaft a6. rlhe cams are situated exactl y opposite each other, and are rotated equally by the pinions B and wheels C.

E E are rings, each of which surrounds one of the cams D, and is reciprocated by its rotation. i

F F are the radial pins, of any proper crosssection, but preferably made angular, so as to take betterhold` of the ground over which the wheel passes. The pins F on each side 'pass into and through the holes inthe flange a, and have their inner ends pivoted to the outer ends of the links ff, the inner ends of which are pivoted at equal distances apart to the ring E, situated on the same side, as shown in Fig. 2. The hubs of the wheels, it will be seen, are formed with inwardly-projecting eX- tensions A, which are adapted to serve as bearings and supports for the cams or eccentrics presently described. By this construction I support the cams or eecentrics on the wheel proper, and thus adapt the wheel for application to any of the usual forms of traction-engines, as will be understood.

The wheels may be rotated by any desired means, such as chains or gearwheels. G shows such a gear proper attachedv to one wheel A. This gear G is project-ed laterally from an annularplate, G', which is secured to the spokes of the wheel A. The teeth y of gear-wheel G are formed nearthe edge of same, and between the teeth and the plate G', I form slots G2 through the wheel G, `i'or the passage of the links f, which connect pins F and ring end with aproper horizontal handle to rotate IOI) E. These slots are elongated slightly in a eircumferential direction,so as to permit a slight play ot' the links in such direction. rlhis is advantageous in that it permits a slight play of the links desirable in the movement of the eccentric before described, and yet it prevents the rotation of the eccentric-ring, as will be understood.

If it is not desired to use the pins, they are drawn in from the points of contact of the wheels with the ground by means of the pinions B B and described actuating mechanism, and the revolution of the wheels will then, by means of the gear-wheels B B, continually draw them in as the wheels come with contact with the grounds at successive points. It is evident that the pins can, by the same means, be adjusted to any distance of their length out or' the opening in the flanges a. when the wheels and ground come in contact, and that the revolution ot' the wheels will bring the following arms successively as i'ar out.

\Vl1ilc I prel'erlhc construction shown and before described, it is manifest many modiiications or slight variations may be made without involving a departure from the broad principles of my invention. For instance, the eccentric I) might be formed independently oi" the gear C, and be rotated by hand to secure the desired adjustment. Instead ot' arranging said eccentric on the inner side ofthe wheel, it might be secured on the outer side of same, being properly secured on the end of the spindle. Instead of making such eccentric or' the circular contourshowmit might be made of other suitable cam shape, the ring or carrier E being conformed to such desired shape. It is also manifest that the cam might be made with an eccentric-flange or lateral shoulder operating in the guide D on the l'ra1ning,which in such case would be suitably formed to receive such eccentric. In case the eccentric is revolved by hand it would be desirable 'to employ a clamping set-screw or other wellknown expedient to secure it at any point to which it maybe adjusted. These slight modiiications will involve nc departure from the broad principles of my invention, though I prefer to employ the devices and construction as shown and before more fully described.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, 1s

I. A traction-wheel having pins projected at intervals through and movable beyond the rim, a ring,and links connecting said pins and ring, and having its hub extended at A inward, and adapted to serve as a bearing for the eccentric, and the eccentric journaled on the extension A 0i' the hub, and provided with a gear ring or wheel suited to be engaged by a proper gear on the framing, substantially as set forth.

2. The combination, with the wheel, the eccentric secnred ou the framing, the ring E, and pins F, of the wheel G, secured to the spokes midway the hub and telly, and provided with slots g, and the links f, passed through slots g, and pivotally secured at their opposite ends tothe pins and ring E, substantially as and 'for the purposes specified.

In testimony whereof l aiiix my signature in presence of two witnesses. r

\VILLIAM M. BEINDOR-F.

Witnesses:

C. ZINCK, THEO. Lonscnrln.

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