alternating current and can be espe- cially wound to 220 volts. The alternating-current motor weighs about 25 pounds, while the direct-current motor is much lighter, weighing but 15 pounds. Both motors are very simple, requiring no more attention than a fan motor. In connecting with a source of… … varies with the work performed, but centers. in no case is it excessive. The largest A labor-saving hand and breast drill} Use. Grinding Motor. drill the chuck will hold is 21/64 inch shown in one of the cuts is useful in diameter and@ from this all, sizes down for drilling holes in wood or metal.…
Internet Archive · Public domain (published before 1931). Free to use for anything.
