Joints and connections – Interfitted members – Interdigitated ends
Patent
1976-07-28
1978-02-21
Shedd, Wayne L.
Joints and connections
Interfitted members
Interdigitated ends
403337, 192 67R, 403 28, B25G 302
Patent
active
040749460
ABSTRACT:
A coupling for two members such as a shaft and a compressor rotor or a turbine rotor carried thereby in which it is necessary that the rotor be firmly and tightly fixed with respect to the shaft at all times and in which the rotor and shaft may be subjected to widely different temperatures at any one time. On one of the members, usually the rotor, there are provided three fingers or projections extending toward the other member, while the other member is provided with recesses to receive and fit such projections. The projections are wedge shaped with side plane surfaces parallel to a radius extending from the axis of rotation so that the portions of the members carrying the fingers and recesses can move radially simultaneously outwardly or inwardly relative to one another as one expands or contracts more than the other, without tightening or loosening the coupling. At the same time, the three fingers and recesses receiving them will accurately position the two members relative to one another both with regard to centering them on the same axis and with regard to keeping the axes of rotation of the two members in position so that they coincide.
REFERENCES:
patent: 776391 (1904-11-01), Giese
patent: 2710763 (1955-06-01), Gilbert
patent: 2728895 (1955-12-01), Quackenbush et al.
patent: 2836448 (1958-05-01), King
patent: 3478542 (1969-11-01), Dinger et al.
patent: 3500660 (1970-03-01), Anderson
patent: 3601501 (1971-08-01), Johnson et al.
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