Patent GB-190303925-A (GB)
Title: Improvements in Cycle Brakes
Inventor: HINES JAMES
Filed: 1903-02-19
Granted: 1903-05-14
Abstract: 3925. Hines, J. Feb. 19. Brakes, rim. Relates to cycle brakes of the kind described in Specifications Nos. 23,092 and 24,762, A.D. 1901, and No. 10,388, A.D. 1902. In the form shown in Fig. 1, each brake shoe a is pivoted at a<2> to a lever b pivoted at b<1> to a clip c secured to the forks. The shoe carries a roller or equivalent a<3> adapted to engage with inclined surfaces formed on a rigid brake stirrup. On removing the stirrup the shoe &c. can be turned outwards, as indicated by dotted lines, to allow of the ready removal of the tyre. The levers are pressed outwards by springs mounted on the pivots b<1>. In another form, shown in Fig. 3, the shoe a is rigidly secured to a link b pivoted on a clip and formed with pins or sockets adapted to be engaged by sockets or pins formed on the stirrup. Springs surrounding the pivots of the links b press the links outwards. The links b may extend downwards. The shoes may be secured to the arms ofthe stirrup, the links being perforated to engage hooks formed on the stirrup arms. Fig. 9 shows an form of rigid stirrup, the arms s<1> of which have inclined lower ends s<2> to engage the brake shoes, and are pivoted to a piece s attached to the actuating-cord w. Screws passing through-lugs s<5> and engaging the piece s adjust the space between the ends s<2>. In a modification, the screws are arranged horizontally and bear on lugs formed on the piece s. In another modification, the arms s<1> are adjusted by a sleeve formed with right and left handed screw-threads which engage with rods pivoted to the arms s'. In another modification, the bent upper ends of the arms are adjustable in guides formed in the piece s, and, in another form, they have horizontal screwed portions which screw into the piece s. In the arrangement shown in Fig. 15, arms s', having pin-and-socket connections with the brake blocks, are pivoted at a<12> and connected by links s<11> to the wire w. Fig. 16 shows a form in which the pivoted arms s<1> are formed with inclined lugs s<3> actuated by a wedge w<1>. In a modification of this form, the lugs s<3> are parallel, and carry levers attached at their outer ends to the forked ends of the cord w, and formed at their inner ends with cam surfaces to engage the inner faces of the lugs. In other forms, parallel arms s', pivoted to a straight or curved cross-bar, are actuated by one or two pairs of toggle links connected fo the cord w. Fig. 18 shows a form in which screw surfaces formed on the upper ends of the arms 81 are engaged by rollers' s<16> mounted on a rod s<17> on which the cord w is, wound so that, when the cord is actuated, the rod s<17> rotates and actuates the arms. Fig. 21 shows an appliance for keeping the cord in tension. A spring v is compressed between the stirrup s and a tube t adjustably-secured to a clip u mounted on the frame. Thewire passes through the tube t and over a pulley p mounted on the clip u. The cord is guided round the angles of the frame in split and bent tubes g, Figs. 22 and 23, loosely-secured by lugs h<1> to clips h. In a modification, shown in Fig. 24, the cord passes round a quadrant pivoted to the clip, a rod keeping it in place.