| 摘要 |
<p>323,485. Lethaby, H. Oct. 1, 1928. No Patent granted (Sealing fee not paid). Handles. - In ball-striking implements for games, such as tennis rackets, golf clubs, and bats, the end face of the handle has applied thereto a cap containing a balancing weight or weights adjustably positioned therein, and means are provided for securing the cap to the handle, As the cap a of metal, celluloid, phenylformaldehyde products or indiarubber, has a flange d<1> secured against the end face of the handle b by a central screw f passing through a screw-threaded boss c which enters a recess d in the handle. Weights k are adjustable on the screw-threaded boss. To avoid increasing the normal weight of the racket a cavity g is formed in the handle.</p> |
