The Civil engineer and architect's journal, scientific and railway gazette (1839)
London : [William Laxton] · leaf 374
this passes a second chain, one end of which is attached to theram, and the other, passing down under the bottom of the frame,is brought up and affixed to the head of the pile. The power isderived from a small steam-engine, fixed at any convenient spot,which works an air-pump for producing the… … Front Elevation of a Double Machine. the inciilculable advantage of being worhed at any required distancefrom the steam-engine, and moved about with as much facility as acommon crab-engine. The mode of action is as follows : the rambeing supposed down on the pile-head, and the piston consequentlyat…
Architecture · Civil engineering · Science
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