| 摘要 |
358,343. Golf club heads. HADDEN, W. J. and DONALDSON MANUFACTURING CO., Ltd., 1A, Blythswood, Square, Glasgow. Nov. 20, 1930, No. 34918. [Class 132 (ii).] Heads of golf clubs of the "driver," " brassie " or " spoon" type with wooden or metallic shafts comprise a front face 6 and a top face 8, the remainder o f the weight of the head being concentrated in a rib 4 extending rearwardly from the front face in the line in which the ball is struck, vacant spaces 9, 10 being left at both sides of said rib, the head being of T-shape in horizontal section, Fig. 4, and the top face extending rearwardly from the front face over said rib. The head is formed as an integral metal stamping preferably of duralumin or duralumin alloy or the head may be cast while a bone or other face-plate could be fitted in the front face of the head. In the case of a casting a sole may be formed integral with the rest of the head. In a modification the rib may be removable and replaceable so that ribs of different sizes and/or weights may be fitted and secured in position by screws, pins, or otherwise. The socket 7 may be internally screw-threaded and tapered for the reception of an externally screw-threaded and tapered shaft, the two when secured together forming a combined screw-and-push joint as described in Specification 312,538, [Class 132 (ii), Games]. |
