Method of mainspring removal tool for mainspring removal

Details Method of mainspring removal tool for mainspring removal Method of mainspring removal tool for mainspring removal

1995-09-15

1997-12-09

Echols, P. W.

Metal working

Method of mechanical manufacture

Watch or clock making

29228, 2940203, 81 6, G04D 300, B23P 1904

Patent

active

056946899

ABSTRACT:
A tool provides a means for easily and safely removing a timepiece mainspring from its barrel for cleaning and lubricating. A barrel holder is provided having a rim, and an essentially planar surface which includes openings therethrough. A mainspring barrel containing a mainspring is inserted into a mating opening. A barrel holder cap is snapped over a rim of the barrel holder. The cap surface includes openings opposite the barrel holder openings. The cap and barrel holder thereby form a receptacle for receiving an extracted mainspring. The watchmaker accesses a loop of the mainspring in the barrel holder, and removes the mainspring. The energy in the spring is thereby released and the expanding spring is captivated in the receptacle, permitting removal therefrom for cleaning and lubricating.

REFERENCES:
patent: 435844 (1890-09-01), Logan
patent: 1144548 (1915-06-01), Jones
patent: 1240783 (1917-09-01), Schmidt
patent: 1767175 (1930-06-01), Glass
patent: 2527751 (1950-10-01), Maheu
patent: 4183268 (1980-01-01), Anderson

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