Mechanical movements, powers, devices and appliances; (1903)
Hiscox, Gardner Dexter, 1822?-1908 · New York, The N.W. Henley & co. · leaf 29
14. Bell Crank or Angular Lever, firstorder. Same notation as No. 11. … 15. Bell Crank or Angular Lever,second order. Same Notation as No. 12. 16. Bell Crank or Angular Lever,third order. WX 0 + ( a X cosine of angle ) = P It-—g,—^ f^ ^P 17. Compound Lever, first order. q?t^^^—0 % ax a W P X ^ X ^
Mechanical movements
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