Self-propelled vehicles; a practical treatise on the theory, construction, operation, care and management of all forms of automobiles (1906)
Homans, James E. (James Edward), b. 1865 · New York, T. Audel & Company · leaf 254
ely. Other Forms of Prony Brake.—In some forms of Pronybrake the block-bearing rope or band, instead of being securedas shown in the cut is attached to the floor and ceiling—twodynamometers or spring balances being interposed. Thus in theformula for estimating with this form, the item of… … Fig. 165.— Common Form of Prony Brake, for testing the D. H. P. of an engine. An ironband shod with wooden blocks is drawn tightly around the circumference of the fly-wheel. To this two arms are attached, the other ends of which bear upon the scaleElatform, as shown. It is necessary that the scale…
Automobiles
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