Cyclopedia of architecture, carpentry, and building : a general reference work (1912)
American Technical Society · Chicago : American Technical Society · leaf 367
rvice,zero to full load; and (h) Intermittent service, zero to half-speed; and continuous service, half-speed to full speed. Thecontrollers are of the drum type, similar to those used on street-cars. 340. Hoisting Lumber and Steel. In constructing large rein-forced-concrete buildings, usually a… … Fig. 137. Regulating and Reversing Controllerfor Motor of Fig. 136. arrangement of the plant. These hoistsare usually of the single-drum type. 341. Hoisting Buckets. In build-ing construction, concrete is usuallyhoisted in automatic dumping buckets.The bucket is designed to slide up anddown a light…
Architecture · Building
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