Metal founding – Means to shape metallic material – Pressure shaping means
Patent
1993-12-10
1995-09-26
Batten, jr., J. Reed
Metal founding
Means to shape metallic material
Pressure shaping means
164289, B22D 1306, B22D 1310
Patent
active
054527546
ABSTRACT:
With the centrifugal casting apparatus, the rotating arm is never loosened to thereby obtain good casting quality even if rapid variation in speed is generated upon rotating of the rotating arm at high speed. The centrifugal casting apparatus is provided with a rotating shaft 51, a rotating arm 1 fixed to the shaft 51, a crucible 3, a mold 4 and the like provided at one end of the arm 1, and a balance weight 2 provided at the other end. The apparatus is provided with arm fixing bolts 12a, 12b for fixing the arm 1 to the shaft 51 and positioned so as to be deviated from the rotational center 15 of the shaft 51. The rotating shaft 51 is provided with fulcrum pins 18a, 18b serving as fulcrum for balance of the arm 1. The fulcrum pins 18a, 18b protrude from the shaft 51 when the balance of the arm 1 is adjsted, and retract into the shaft 51 when the arm 1 and the shaft 51 are fixed. The apparatus is further provided with the engaging portions in which the shaft 51 and the arm 1 are connected, the engaging portions having faces inclined relative to the shaft 51.
REFERENCES:
patent: 1331660 (1920-02-01), Mortonson et al.
patent: 2265043 (1941-12-01), Moore
patent: 2752650 (1956-07-01), Bosna
patent: 3735800 (1973-05-01), Huppert et al.
patent: 4167381 (1979-09-01), Hilmde
patent: 4524816 (1985-06-01), Plowman et al.
Batten, Jr. J. Reed
M. Yasui & Co. Ltd.
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