[Larger plate.]

[494]. Tool box, with two tool stocks and set screws sliding in T grooves in the slide rest.

[495]. Tool box, with clamping screw and plate, which can be revolved to any angle.

[496]. A modification of [495], the tool being secured by set screws in the clamping plate.

[497]. Rail grip for holding a crane, car, &c., down to its railway.

[498]. Cam-lever rail grip for safety gear on inclines; this is usually thrown into action by a spring released by the breakage of the hauling rope.

[499]. Cone centering grips for machine tools.

[500]. Hinged clamp, with screw and nut.

[501]. Fitter’s clamp or cramp.

[502]. V grip vice for round rods and tubes. This is frequently made with multiple V’s to hold cylindrical articles such as drills, &c., and is a common device for drill chucks.