Metal working – Means to assemble or disassemble – Puller or pusher means – contained force multiplying operator
Patent
1990-07-10
1991-10-01
Echols, P. W.
Metal working
Means to assemble or disassemble
Puller or pusher means, contained force multiplying operator
291295, 355211, 355213, B21B 3108
Patent
active
050520903
ABSTRACT:
A flange for a drum is disclosed. The flange is mounted on one end of the drum to rotate together with it, and comprises a hole passing therethrough along the axis of rotation to receive a rotation shaft therethrough, so that the flange can rotate together with the rotation shaft. The hole comprises an inside portion having an oblong cross section and an outside portion having a perfectly circular cross section, the inside portion being located toward the drum, and the outside portion being open toward the outside. One end portion of the rotation shaft has an oblong cross section and is securely fitted in the oblong portion of the hole. When the drum is to be tested for concentricity with the rotation shaft, a conical rotation pin is inserted into the circular portion of the hole so that the flange can be rotated concentrically with, and together with the conical rotation pin.
REFERENCES:
patent: 732907 (1903-07-01), Storr
patent: 1043173 (1912-11-01), Friestedt
patent: 2072642 (1937-03-01), Martin
patent: 2368450 (1945-01-01), Crooks
patent: 4040158 (1977-08-01), Payne
Kitaura Katsuya
Okamoto Masaru
Bryant David P.
Echols P. W.
Mita Industrial Co. Ltd.
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