steel, with triangular and tapering slots in their end faces, so that when they are 8 IMPROVED VEHICLE BRAKE, ? closed up there is left on each side of the center a pyra- Tn the forward part of the bottom of the wagon body midical cavity corresponding to the point of the nail. is aslot through… … nails produced per minute equaling four times the IRWIN’S IMPROVED VEHICLE BRAKE. and backward motion to the saw. The pivotal con- number of revolutions made by the lay shaft per nection of the saw holder with the lever permits the the body. The lower end of the lever extends a short minute.…
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