Machine for cutting slots in barrels of locks, made by Joseph Bramah (c. 1788), plus saw (see 2 stroke numbers).

This machine was made in the works of Joseph Bramah for the purpose of cutting slots in the barrel of the Bramah lock (see 211). The saw is held in a frame that travels between adjustable V-slides and is reciprocated by a double-handed lever by man power. The barrel to be slotted is placed in the bush holder and this is then placed in the main holder indexed to cut 4, 5, 6, 7, 8, 10 or 1 2 slots in a barrel 1 {in diameter and from 2 in to 8 in long. The holder is raised and lowered by a long lever at the side of the machine and the saw is guided and its thrust resisted by a lever bearing on the back of the saw.