Overunning clutch spring

Details Overunning clutch spring Overunning clutch spring

1984-10-12

1986-02-18

Briggs, William R.

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

409131, B23P 1300

Patent

active

045703183

ABSTRACT:
Squared-ends are provided in an overrunning clutch spring by notching the end of the tube stock; cutting the endmost coil on a lead equal to the cutter diameter (D) so that it varies in thickness from W/2 at its end to 3W/2, where (W) is its desired thickness; and cutting subsequent coils on a lead equal to cutter diameter plus desired coil thickness; and compressing the spring. Notches (70, 72) resulting from the process are advantageously positioned for enhancing the centrifugal balance of the spring.

REFERENCES:
patent: 1932000 (1933-10-01), Starkey
patent: 1952415 (1934-03-01), Brownlee
patent: 1983824 (1934-12-01), Starkey
patent: 2343079 (1944-02-01), Pickwell
patent: 2480783 (1949-08-01), Sloan
patent: 2673730 (1954-03-01), Hupp
patent: 2922220 (1960-01-01), Sacchini
patent: 2948954 (1960-08-01), Ramsa
Advanced Overrunning Clutch Technology, by V. G. Kish, Society of Automotive Engineering Inc., Nov. 1978.
Helicopter Freewheel Unit Design Guide, by J. Kish, Applied Technology Laboratory report, Oct. 1977.

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