Gear socket structure for a designing rule

Details Gear socket structure for a designing rule Gear socket structure for a designing rule

1994-02-07

1994-10-25

Cuchlinski, Jr., William A.

Geometrical instruments

Scriber

Curved line

33562, B43L 1100

Patent

active

053576810

ABSTRACT:
A gear socket structure for a designing rule, of which the gear socket is a round cylinder, having a given height; the wall of the gear socket is provided with two leaf springs; the top of each leaf spring has an inward catch hook; the gear socket can accommodate a plurality of gears, which are held in place by means of the catch hooks without falling out unintentionally.

REFERENCES:
patent: 4441256 (1984-04-01), Cummings et al.
patent: 4825556 (1989-05-01), Goldfarb

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