US427004A - Charles mcneal - Google Patents

Description

(No Model.)

0. McNEAL.

SPLIT PULLBY. No. 427,004. Patented Apr. 29, 1890.

flag 93%, WW Zia/M ATTORNEY.

UNITED STATES PATENT OFFICE.

CHARLES MONEAL, OF GOSHEN, INDIANA, ASSIGNOR OF ONE-HALF TO EDWARD SKILLMAN, OF SAME PLACE.

S'PLIT PU LLEY.

SPECIFICATION forming part of Letters Patent No. 427,004, dated April 29, 1890.

Application filed November 29, 1889. Serial No. 331,929. (No model.)

To all whom it may concern/.-

Be it known that I, CHARLES MCNEAL, of Goshen, in the county of Elkhart and State of Indiana, have invented certain new and useful Improvements in Split Pulleys; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form part of this specification, in Which Figure 1 is a face View of my improved pul- I ley. Fig. 2 is a sectional view thereof in the plane of the wheel F.

This invention is an improvement in split pulleys, and its object is to improve the construction thereof, and is especially designed for constructing large wheels; and to this end the invention consists in the novel construction and arrangement of parts, hereinafter described and claimed.

Reference being had to the drawings by letters, A A represent the opposite similar hub-sections, each having a semi-tubular or channeled portion B, lying parallel with the shaft to which the pulley is secured, and a transverse piece 0, lying at right angles to porion B and projecting equally on both sides thereof, the face of said piece lying parallel with the plane of parting of the hub.

c c are upstanding flanges on the side of pieces 0, and, if desired, transverse ribs 0 0 may be formed on the faces of said pieces, as shown.

In the ends of pieces 0 are formed openings E E, and on the under faces of said pieces ff, and engage a corresponding mortise d in the bar D, being secured therein by glue, or by pins f f also, if desired.

G designates a V-shaped casting or clamping-block lying between spokes F F, and having side flanges g,g on its outer faces, which embrace the sides of the spokes, as indicated. The arms of this casting are perforated, as at h h, and on the opposite inner faces of the arms and surrounding these openings are bosses H H, as shown. The perforations in these clamping-blocks G are in line with the perforations E E in pieces 0, and J J are clamping bolts which pass, respectively, through openings E E, openings in the spokebars D and spokes F, respectively, and through openings h h of the clamping-block, and are secured by nuts 7' j on their ends, as shown. These bolts thus tie the spokes directly to the hub-sections and at the same time bind the spoke-bars thereto, forming a kind of trussbrace for the bars and spokes, enabling them to withstand centrifugalstrain when the pulley isin use. The flanges on pieces 0 and blocks G and the bolts J prevent lateral displacement of the spokes and bars.

K K designate the rim-sections secured to the respective spoke-bars and spokes by socket-and-tenon joints, or in other convenient manner. The rim and hub part on the same line and the pulley can be readily and quickly secured to a shaft by placing its opposite halves on opposite sides of the shaft, which is received between the portions B B of the hub, and then by means of clamping-bolts K K, passed through the perforated ears I) b of the opposite hub-sections and the nuts 70 k, the hub-sections are firmlyclamped upon the shaft. Tie-bolts 0, passed through the opposite bars D D and securely nutted, as indicated, may be employed to draw the rim-sections more tightly together, ifdesired. This construction gives an eight-spoked wheel, and is suitable for large heavy driving or power wheels, all parts being readily detachable, so that the hub-sections can be changed for others having portions B adapted for different sizes of shafts.

Having thus described my invention, I claim- 1. The combination, in a split pulley, of a pair of hub-sections having cross-pieces, and the spoke-bars seated on said cross-pieces, and the spokes fitted to said bars, with the clamping-blocks between the spokes, and the clamping-bolts passing through the crosspieces, spoke-bars, spokes, and clampingblocks, substantially as described.

2. The combination of the hub-sections each having a channeled portion partly embracing the shaft, and a flanged cross-piece, with the spoke-bars seated on said crosspieees, the pairs of spokes rising from said bars, the clamping-blocks between said pairs of spokes, and the clamping-bolts passing through the clamping-block, one spoke of each pair, the spoke-bar, and one end of a crosspiece, respectively, for the purpose and sub stantially as described.

3. The combination of the hub-section A, having cross-piece 0, provided with perforated bosses e e, the spoke-bar D, the spokes F F, secured thereto, and the flanged V shaped clamping-block G, and the clampingbolts K K, all substantially as set forth.

4. The combination of the opposite hubsections A A, constructed substantiallyas described, vith the spoke-bars D D, the spokes F F, secured to said bars by mortise-andtenon joints, and clamping-blocks G G, and the rim-sections secured to said spokes and bars, and the uniting bolts and nuts for the several parts, substantially as described.

5. The combination of the opposite hubsections A A, having, semi-tubular portions B EDWARD SKILLMAN, OI-IAs. D. SI-IULTZ.

Images