Apparatus for removing and replacing spiral springs in clock bar

Details Apparatus for removing and replacing spiral springs in clock bar Apparatus for removing and replacing spiral springs in clock bar

1976-08-25

1977-07-19

Jones, Jr., James L.

Tools

Watchmakers'

Mainspring winders

29228, G04D 300, B23P 1904

Patent

active

040360849

ABSTRACT:
A support frame carries a rotary clock spring winding shaft having a reversible locking means. A set of variably sized spring retaining sleeves are provided and are selectively placed on the winding shaft according to the size of the clock spring barrel. A parallel stationary shaft on the support frame mounts a group of adjustable spring end holding elements which cooperate with the winding shaft during the winding up or unwinding of the clock spring. The apparatus effects removal and replacement of the clock spring in its barrel or retainer in a very simple manner without injuring the spring or the hands of the manipulator.

REFERENCES:
patent: 924470 (1909-06-01), Kelley
patent: 1790218 (1931-01-01), Appleby
patent: 3802300 (1974-04-01), Gillotti

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