A - Human Necessities – 63 – B
Patent
A - Human Necessities
63
B
26/204
A63B 51/16 (2006.01)
Patent
CA 1160438
RACKET STRINGING APPARATUS AND METHOD by JOHN A. BALABAN A racket stringing machine having a racket head holding fixture (11) and a carriage (14) mounted for reciprocation toward and away from the fixture (11) and a string clamp (16) mounted on the carriage for engaging a string (17) drawn through a racket head (12) mounted on the fixture (11) for tensioning the string (17) upon movement of the carriage (14) away from the fixture (11); a first brake (18) which is automatically set upon drawing of the string to an elevated tension greater than the desired final predetermined tension to effect a pre-stretching of the string to a length beyond its length at such predeter- mined tension while permitting a decrease in the string tension; and a second brake (19) which is automatically set to lock the string at the desired final predetermined ten- sion. The apparatus also includes means (21) for providing a controlled restrained rate of increase in string tension and a controlled restrained rate of decreasing string tension at tensions between the predetermined tension and maximum tension. Means (111) is also provided for adjusting the amount of pre-stretching of the string.
371204
Balaban John A.
Balaban John A.
George H. Riches And Associates
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