A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
A01B15/00—Elements, tools, or details of ploughs
A01B15/02—Plough blades; Fixing the blades
A01B15/08—Mouldboards
B—PERFORMING OPERATIONS; TRANSPORTING
B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
B63B23/00—Equipment for handling lifeboats or the like
B63B23/02—Davits, i.e. devices having arms for lowering boats by cables or the like
B63B23/04—Davits, i.e. devices having arms for lowering boats by cables or the like with arms pivoting on substantially horizontal axes, e.g. gravity type
B63B23/06—Davits, i.e. devices having arms for lowering boats by cables or the like with arms pivoting on substantially horizontal axes, e.g. gravity type with actual pivots
Stern mounted cantilever working platform for ship - is pin-jointed with crosspieces and can be sited at deck level or on water line or retracted for transit