Handbook of construction plant, its cost and efficiency (1914)
Dana, Richard Turner, 1876-1928 · Chicago, The M. C. Clark Publishing Co. · leaf 402
$300. Tripods weigh 9 to 15 lbs. LIGHTS Some construction work must be done at night, and much ofit can be expedited if certain portions are done after the regularday shift has knocked off. For instance, a macadam road must be finished in a limitedtime, the road to be surfaced is straight-away from… … Fig. 170. one gang. In such a case it is obvious that if the stone is un-loaded, hauled and spread at night the work will be facilitated.There is no reason why this should not be done. Proper lightsare necessary however. Many steam shovels, cranes and derricks are operated at night.Darkness offers…
Contractors' operations · Building
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
![An illustration from XIXe [i.e. Dix-neuvième] siècle (en France); classes - moeurs - usages - costumes - inventions. Ouvrage illustré d'un front. chromotypographique, de 16 planches coloriées aux patrons, de 36 entetes et lettres ornées et de 487 gravures (dont 24 tirées hors texte) d'après les principaux artistes du siècle (1893)](https://img.insideoutlibrary.com/img/200/ia-xixeiedixneuvi00granuoft-802-610.webp)
