Mechanical movements, powers, devices and appliances (1901)
Hiscox, Gardner Dexter, 1822?-1908 · New York, N. W. Henley & company · leaf 335
1335. BOILER TUBE EXPANDER.—Aseries of sets surrounding a conical driving pin. Prosser percussion type. A guard ring fixesthe proper position of the expanding grooves ofthe sectional sets to match the tube head. 1336. Longitudinal section. … 1337. ROLLER TUBEEXPANDER.—The rollersare loosely fitted in a caseto hold them in position.The slightly tapered mandril is pushed or driven within and bearing onthe rollers and revolved by a bar in the mandril head, which revolvesthe rollers, rolling them over the interior surface of the boiler…
Mechanical movements
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