Strap
The belt, of leather or other material, used for lifting cores into the mould. Also, a strip of flat iron screwed fast to a pattern for the purpose of pulling it out of the sand. A hole at the top serves to insert the hook, and a toe set in under the bottom materially assists the short screws which bind it to the pattern. Straps are always best when they are inlaid flush with the face. Long iron straps with two or more tapped holes are to be preferred for securing sweeps to the spindle-arm; they are better than washers and nuts, especially when each bolt has a hole forged at the end for a pointed bar, instead of the usual head for the wrench. See BELT; SWEEP-BOARD.