US20586A - Metallic hub for carriage-wheels - Google Patents

Description

S. I. RUSSELL.

Hub.

Patented June 15. 1858 N Fifi-RS, PHOTO LTHDGRAP} UNITED STATES PA T OFFTS.

S. I. RUSSELL, OF CHICAGO, ILLINOIS.

METALLIC HUB FOR CARRIAGE-WHEELS.

Specification of Letters Patent No. 20,586, dated June 15, 1858.

To all whom it may concern:

Be it known that I, SAMUEL I. RUSSELL, of the city of Chicago, in the county of Cook and State of Illinois, have invented a new and Improved Metallic Carriage-I-Iub; and I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings and to the letters of reference marked thereon.

One great objection to the use of metallic hubs is the injury done to the woody fiber in driving the spokes tightly into the hub. Another difliculty arises from the shrinking of the spokes, so as to become loose in the hub. WVhen divided hubs are used, they also break the fibers of the wood upon the surface of the spoke, either in the tightening or from the working of one part of the hub upon another part. My divided metallic hub is free from these difficulties.

My invention consists of a metallic hub cast in three pieces, having two sets of wedgeshaped project-ions passing between the spokes, one set of which is cast in the same piece with the boxes and is provided with hooks to embrace the other set and to hold the parts of the hub immovably in position when brought home upon the spokes by a screw nut. It consists also in a guard of rubber for the purpose of tightening the spokes without injury to the woody fiber and of holding them and the different parts of the hub firmly in place.

In the accompanying drawings, Figure 1, is a plan of my hub with the spokes removed. Fig. 2, is a vertical section of the hub, showing also two spokes which are broken off, but not in section.

The hub is cast in three pieces, as shown in Fig. 1, A, B, and O. In Fig. 2, it will be seen that the part C, is connected with the part A by a screw thread. hen the part C is unscrewed, the piece B, also becomes loose, so that the spokes may be taken out; and when the part C is screwed upon A, the spokes are pressed tightly in place and grasped firmly.

The projections F which are cast with A, and the corresponding projections E, which are cast with B, embrace the sides of the spoke D, Fig. 2, and when they are forced into place, the spokes and all parts of the hub are fixed with great rigidity.

In Fig. 2 it will be seen that the projection F is longer than the projection E, and that the points or hooks S, S, embrace the projections E, so as to hold the part B, in place.

In hubs somewhat similar to mine, the spoke is grasped at the end where the pres sure of the wedgeshaped projections is more likely to crack the wood. IVith such hubs the spokes must be made small at the end in order to enter the mortise. On the contrary, my hub receives the spokes of full size on account of the free space at e, c, Fig. 2, while the projections E, and F, grasp the spoke a short distance from the end where the wood is less liable to be injured by pressure. At the same time the diameter of my hub is increased without an increase of metal; on this account, and also on account of the full size of my spokes as inserted into the hub, my wheels will bear a greater shock without breaking the spokes. Another advantage of my hub is the fixedness of the parts, there being but two main pieces, one of which is cast with the axle boxes, so as to be completely unyielding under the pressure of the load upon the wheels. The piece B, is confined by hooks S, S, and being forced home by screwing up the part C the whole hub is almost like a single piece.

The spokes are made so wide that they keep the projections E and F, from coming quitein contact. A piece of india rubber, 25, Fig. 1, is wrapped around each spoke before inserting the latter into the hub, thus affording additional protection to the timber.

Having thus fully described my invention, what I claim as new in the construction of divided metallic hubs and what I desire to secure by Letters Patent of the United States is:

1. The wedge shaped projections E, F, when employed in connection with the spaces 6, e, and hooks S, S, for securing the spokes and locking the two parts of the hub firmly together, substantially as setforth.

2. The use of india-rubber, to protect the woody fiber of the spokes, as set forth.

S. I. RUSSELL.

Witnesses:

C. D. Fnr'rz, THOS. P. 0. LANE.

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