GB165663A - Improvements in or relating to steering gear for steamships - Google Patents

Abstract

165,663. Shaw, J. T., Weymouth, C. A., and Pearson, B. H. June 26,1920. Steering-gear. - Relates to automatic gear for connecting up the hand gear and disconnecting t h e power gear when a quadrant chain breaks, and consists in providing a movable member which contacts with a fixed member on the quadrant moving through an excessive arc and thereby moves the clutch. The quadrant b is freely mounted on the rudder post a and carries lever system k, i h, f, the end f of which operates a clutch, and the end k is adapted to contac t with one of the stops l, m when the quadrant moves beyond its working range on a chain breaking. On contacting with a stop, the lever f raises the sleeve n so that the claw coupling d is withdrawn and the quadrant is disconnected from the post. At the same time, the bevel o at the top of the sleeve is put into engagement with the bevel p on the hand system. In an alternative construction, the bevel o is in permanent engagement with the bevel p, and the clutch member double-faced so that on movement upwardly it clutches the sleeve of the bevel o to the rudder post. The quadrant has extension b<6> adapted to be engaged and locked automatically by stops t, u in either of the extreme positions. In the hand-gearing systems, there are two shafts q, w<1> upon which are mounted discs z, z<1>, w<2>, w<3>, adapted to be brought into contact for braking the system.