Improvements in racquets used in tennis, badminton and such-like games291,141. Hamilton, A. M. Feb. 23, 1927. Rackets.-In a racket in which longitudinal strings are tensioned by a member extending through the length of the handle, the tensioning member is gripped at the handle end by a...
aAdditionally, engineering nanoscale stick-slip among CNTs and CNT- polymer contacts can increase material damping ( 37 ), which is used to enhances porting goods, including tennis racquets, baseball bats, and bicycle frames (Fig. 1C). 另外,设计nanoscale在CNTs之中棍子滑倒,并且CNT-聚合物联络可能...
Catgut substitutes; materials, special, cords of.-A substitute for gut for the lacing of tennis rackets and the like is composed of twisted threads of vegetable fibre impregnated and covered with rubber or rubber substitute. Amongst the fibres that may be used are cotton, linen, jute, argan,...
Improvement in the handles of lawn tennis racquets, racquetracquets, badminton racquets and like articles used in sport games170,717. Prosser, A. E. Aug. 17,1920. Handles.-A handle for a bat, club, mallet, racket, &c. is provided with strips b of solid or hollow round rubber slightly...
25,276. Bryan, F. Dec. 11. Drawings to Specification. Battledores or racquets.-Wooden bats or drumhead battledores for playing table tennis &c. are faced with thin sheet india-rubber, which is preferably covered with small projections so as to put " screw on the ball.FRANK BRYAN...