Modern carpentry and joinery : being a compilation of the very best things and most modern and practical methods known in the arts of carpentry and joinery (1910)
Hodgson, Frederick Thomas, 1836- · Chicago : F. J. Drake & Co. · leaf 360
Fig. 68, Fig. 69. power required is equal to the weight raised dividedby the number of pulleys around which the rope passes.Thus with 3 pulleys in each block there will be sixcords, and the power required to balance a weight of18 cwts. will be 18 -^- 6 = 3 cwts., plus the force re-quired to…
Carpentry
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
