Official gazette of the United States Patent Office Volume 32, nos. 1-8

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1885 Excerpt: ...sash-frames adapted to move in said grooves and branches, substantially as shown and described. 2. In street-railway cars, the posts A, having one or more side grooves, B, with branches b, having metal facings b', substantially as and for the purpose set forth. 3. The street-car posts A. having narrow regular grooves B, with branches b rfud cheek-pieces at the ends of said grooves, substantially as shown and described. Claim.--1. In a commutator, a supporting hub or block of insulating materia for the commutator-segments, mounted on a shaft and having a lateral extension or flange parallel to said shaft,:i and for the purpose described. 2. The combination, with the flanged insulating cylindrical support, of commutator plates or segments secured to the outer surface thereof, aud wires or conductors, as G, carried to the inside of the flange and electrically united by suitable devices with the segments. 3. The combination, with the insulating hub or support, of the lateral flange or extension, bolts or pins extending through the commutator-segment and the flange to the inner side of the latter, and a wire or conductor attached to the inner end of the pin or bolt 4. The combination, with the insulating support for the commutator-segments, of a lateral extension or flange, and connections from the segments extending through said flange to the under Bide thereof for attachment of the wire or conductor to be electrically connected with the commutator. 5. A commutator-support formed in a single piece and having recesses or depressions at points beneath the openings between its conducting segments or plates. 6. The cylindrical hub B, of insulating material, having the recesses or depressions, as. for the purpose described. 7. A commutator-support of insulating mate...