| 摘要 |
840,463. Disc brakes. GIRLING Ltd. Nov. 20, 1958 [Dec. 6, 1957], No. 37976/57. Class 103 (1). In a spot-type disc brake, different members of cylinders are provided in the limbs of the caliper housing on opposite sides of the brake disc; the sums of the cross-sectional areas of the cylinders on the two sides of the disc being such that the efforts applied to opposite sides of the disc are substantially balanced. In the embodiment shown in Figs. 1 and 3, there are two angularly spaced cylinders 21 in one limb of the caliper housing 13 and a single cylinder 18 of larger diameter in the other limb; the area of the single cylinder being equal to the sum of the areas of the other two. The above arrangement provides that the radial dimension of the central part of the caliper limb housing the larger number of cylinders may be substantially less than the corresponding dimension of the other limb and, conversely, the circumferential length of the central part of the caliper limb housing the smaller number of cylinders can be less than the corresponding dimension of the limb housing the larger number of cylinders (as may be seen in Fig. 3). Specifications 742,338 and 801,805 are referred to. |
