GB486401A - Improvements relating to driving belts - Google Patents

Abstract

486,401. Driving - belts. SIEGLING, E. Nov. 12, 1937, No. 31128. Convention date, April 30. [Class 80 (i)] A driving-belt comprises a number of strips of leather set on edge side by side and connected by pins or rivets, one or more of the strips being arranged to form ribs or projections on the running surface of the belt. As shown in Fig. 2, the ribs b are of V-form. In modified forms, (1) ribs of rounded form comprising several strips, (2) rectangular-section. ribs, or (3) V-ribs projecting on both faces of the belt may be employed. The rectangular ribs engage somewhat larger grooves in the pulleys and serve simply as guides. In a further form, the non-projecting strips may be square-woven ropes, or fabric bound by caoutchouc, guttapercha &c. In the form shown in Fig. 10, the two strips forming the rib b are secured together by adhesive k, or by rivets of metal or vulcan fibre, not shown. The ribs may also comprise (1) side strips with a filler of natural or artificial caoutchouc between them, (2) a number of strips bound by a cover of leather or fabric, (3) a number of alternating strips of leather and fabric or caoutchouc secured together by a countersunk rivet, or (4) a. mass of fabric and caoutchouc with a reinforcing core. In the above forms, a single rib only may be provided. The ribs may be provided with transverse incisions f, parallel-sided or tapered, Fig. 22, which may extend into the body a of the belt, but are staggered with respect to the rivet holes ; or a series of holes h, Fig. 21, may be provided in the ribs. Fine transverse cuts may also be made in the outer surface of the belt.