Benjamin, Charles Henry, 1856- [from old catalog], Hoffman, James David, 1868- [from old catalog] joint author · New York, H. Holt and company · leaf 331
the exact amount can best be deter-mined by the experience of the operator. The exact force W atthe cutters tending to rupture the frame is rather an indeterminatequantity but a safe value may be found by the following formula: W = Af=tf\ tr 4 1- .6834 + 40 r where t = thickness of the metal to be… … Fig. 154.Lennox Rotary Bevel Shear
Machine design
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