US161953A - Improvement in wheels for vehicles - Google Patents

Description

E. HALL.

Wheel for Vehicles. No.16l 953. PatentedApriHanaS.

THE GRAPHIC C0.PHOTD.-L|TH.39&41 PARK PIACEJLY.

ELIHU HALL, OF WALLINGFCRD, CONNECTICUT.

IMPROVEMENT IN WHEELS FOR VEHICLES.

Specification forming part of Letters Patent No. 161,953, dated April 13, 1875; application filed February 19, 1875.

To all whom it may concern Be it known that I, ELIHU HALL, of Wallingford, in the county of New Haven and State of Connecticut, have invented certain Improvements in Carriage-Wheels, of which the following is a specitication:

This invention relates to the construction of the wooden hub and spokes, and their cornbination with each other and with a metallic ring designed and adapted to support the spokes outside ot' the wooden hub, as hereinafter more fully set forth, the object being to secure a ijrm, strong, and reliable carriagewheel at a reasonable cost.

Figure 1 is a vertical section through the axis of the hub of the central portion of a carriage-wheel constructed according to my invention. Fig. 2 is a section transverse to the axis of the hub, and nearly through the middle thereof, showing'the construction of the central portion of a fourteen-spoke carriagewheel according to my invention, the spokes not being shown in section. Fig. 3 is a similar section to Fig. 2, showing the construction according to my invention of the central portion of a carriage-wheel having sixteen spokes.

A is the wooden hub, which is constructed in the manner ordinarily practiced when the wooden hub is intended to be surrounded in the middle with an iron ring, which has mortises to receive the spokes, with the exception that, instead ot' being provided with mortises to receive the inner ends of the spokes, or provided with a groove in its periphery for that purpose, it is provided with angular notches or recesses to receive clusters ot' the spokes, the ends of the hub being connected by the web or portions c, which are regarded as of sufcient proportionate size to give the requisite strength. B is a metal ring, preferably inade of malleable iron, which surrounds the middle of the wooden hub, and is provided with a mortise through it for each spoke.

-To give the best results, these niortises should be tapered upon all sides, so as to slightly compress the spokes when they are driven into place. It is also, for the same reason and purpose, preferable that the recesses in the wooden hub to receive the spokes C shall be broader in the direction of the length ot' the hub at the outside, next to the metallic ring, than in the inner portion ot' the hub. The spokes should be tapered accordingl y.

It will be observed that the inner portion of those spokes which are next to the web c is cut away upon the side next to the said web to give room for it; but on the other side they are simply tapered to lit against the other spokes, and in the same manner that the spokes not in contact with the webs a are tapered on both sides.

This invention has the advantage over the tenoned spoke and mortised hub used in coinbination with the mortised metallic ring above described, that the inner ends of most of the spokes are, by this construction, aI- lowed to be more nearly their full size, there byavoiding the tendency to break oi' at the shoulder to which tenoned spokes are exposed; and, also, that the clusters wedge upon each other as they are confined and held inward by the tire, and thus more eft'ectually prevent each other from Working loose', and it is found by experiment that the Webs a are quite sufficient to give the requisite strength to that portion ot the hub.

This construction also has the advantage over a mortised ring and grooved hub, that the spokes are allowed to extend farther inward in the hub, and, binding upon each other as they do, give a better resistance to a strain thrown upon any one spoke of the wheel; and, also, by so extending farther into the hub, give a better resistance to any strain laterally upon the wheel.

This mode ot' introducing the spokes into the hub in clusters, in combination with the webs c, instead of by mortise 'and tenon, as formerly practiced, may also, perhaps, be usefully employed where the mortised ring B is not used.

Two webs, a, placed opposite each other, instead of four on each hub, maybe used with satisfactory results in most cases; but I prefer to use four of these webs in each hub, for

the reason that when only two are used, the

very great lateral strain upon the wheel on webs a, clusters of spokes G, and mortise-ring the open sides of the hub has very great lever- B, substantially as and for the purpose set age on the webs. forth. u

I claim as my inventioul. The combination of the Wooden hub A, ELIHU HALL webs a, and clusters of spokes C, substantially Witnesses: as und for the purpose set forth. E. S. PARMELEE,

2. The combination of the Wooden hub A, E. H. IVES.

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