Racket stringing machines

Amusement devices: games – Aerial projectile game; game element or accessory therefor... – Target

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Details

269 98, 269189, 269204, 269243, A63B 5114

Patent

active

043669581

ABSTRACT:
An apparatus for use in stringing rackets comprising a support structure including a pedestal having a base portion with a weighted foot pedal pivotally attached thereto, a racket supporting portion attached to the upper end of the support portion, a string clamp mechanism operatively connected to the foot pedal, the clamp mechanism including clamp members for engaging and clamping a length of string extending therebetween, a clamp support member mounted adjacent to the racket supporting portion, a string clamp assembly including a pair of members having portions for engaging a length of string extending therebetween, a member pivotally connecting the pair of members, a spring between the clamp members biasing said string engaging portions apart, and a clamp operator member movable between an open position whereby a length of string can be moved between the string engaging portions and a closed position in which the string engaging portions move into clamping positions. The subject improvements also reside in an improved string tension adjustment mechanism, a novel guide bar assembly for supporting the string clamp assemblies in different positions, a novel brake assembly for locking a racket in different positions relative to the string clamp mechanism, a novel racket engaging support structure including a quick operating racket clamp and racket release device therefor, and an optional modified clamp support structure which enables stringing rackets that have their crossed string reaches oriented at other than a right angle.

REFERENCES:
patent: 1042610 (1912-10-01), Schulz
patent: 1518316 (1924-12-01), Ellingham
patent: 1969826 (1934-08-01), Tanber et al.
patent: 2154870 (1939-04-01), Serrano
patent: 2246109 (1941-06-01), Serrano
patent: 2497384 (1950-02-01), Young
patent: 3441275 (1969-04-01), Held
patent: 3988022 (1976-10-01), Halbrook
patent: 4049268 (1977-09-01), Ray

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