Wages and Hours of Labor in the Lumber, Millwork, and Furniture Industries, 1915 Volume 24-29
This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1917 edition. Excerpt: ...devices are used to handle the material, so that the manual labor involved consists chiefly in operating such devices. Thus, the product is transferred from one machine to another by power-driven rolls and chains. Even the transferring of the product from the mill and the work of stacking it for yard or dry kiln may be accomplished through power-driven equipment. Large band or circular head saws, supplemented by gang saws and resaws, replace the small circular saw of the elementary mill, and the daily output of each head saw may exceed 100,000 board feet. In this description only the modern mill will be considered in detail. In such a mill the building which houses the machinery i8 usually a two-story structure, but in some instances a third story is added for the purpose of housing a filing room. The lower story is given over to the bases for the heavier machines and to various belts, driving rods, and other mechanisms for the transmission of power to shaped trough, known as the log slip or chute, leads from the pond to one end of this story. If the mill has two head saws the chute is in the center; if but one head saw, the chute is at the side. In either case the end of the mill to which the chute leads is called the log deck and is raised a few foot, above the (.V(l of the floor on which the nl&('lllI1('S rest. A continuous chain, called the bull chain, 111115 lngth"'iS 'lf the SUP. This chain has projections on its outer $id the machines on the sawmill floor and for the removal of waste ma-tonal. The second story is known as the sawmill floor, and is usually from 10 to 20 feet above the ground or pond level. A "V" or "U " for holding the logs as they are elevated, or hooks for...
- 189 x 246 x 16mm | 544g
- 13 Sep 2013
- United States
- black & white illustrations