New York [etc.] Simmons-Boardman Pub. Co. [etc.] · leaf 26
bring the screws to be slotted against the saw. Thestop screw shown governs the downward motion, andthus regulates the depth of slot in the screw head.The working part of the apparatus can be raised orlowered on the platform front by means of the bolt … HORIZONTAL DRILLING AND BORING MACHINE.
Railroads · Railroad cars
Internet Archive · Carnegie Library of Pittsburgh · Public Domain Mark 1.0. Free to use for anything.
