GB857201A - Compass suspensions - Google Patents

Abstract

857,201. Magnetic compasses. GILLIE, J. C., KENNEDY, S., and LILLEY & GILLIE Ltd., J. March 16, 1959 [March 20, 1958], No. 9030/58. Class 97(2) A compass bowl 11, Fig. 6, is mounted in ball or roller bearings 34 in a gimbal ring 24, springs 35, 36, being provided to prevent overswing of the bowl 11. The gimbal ring 24 is mounted by ball or roller bearings in a suspension member 12, Fig. 5, the axes of the two sets of bearings being at right angles, and similar springs being provided to prevent overswing of the gimbal ring 24 in the member 12. The suspension member 12 is mounted by rubber blocks 20, bonded to screws 18, 19, on brackets 17 secured to the binnacle rim 10. The member 12 is also secured by screws 13 and nuts 14, Fig. 2, separated by rubber blocks 15, to the binnacle rim 10. The spring checks to prevent over-swing comprise springs 35, 36, Fig. 6, on a wire guide 37 secured at its ends 38, 39 to the gimbal ring 24 and passing freely through a check stop 40 on the compass bowl. Similarly the wire guide 29, Fig. 5, carrying springs 27, 28, is secured at its ends 30, 31 to the gimbal 24 and passes freely through a check stop 32 fixed on the binnacle rim 10.