| 摘要 |
811,412. Hinges and pivots. FLODELL, S. A. R. May 24, 1957, No. 16504/57. Class 65(2) A socket member 5 mounted in a window frame 1 receives a pivot member 13 carried by the sash 2, the member 13 having a shaft 12 of non-circular cross-section slidably mounted in a sleeve 10 mounted in the sash and having a bore of similar cross-section. The pivot and socket are frusto-conical and the friction of the pivot is adjusted by a screw 15 threaded into the end 11a of the sleeve to engage the end of the shaft 12. The sleeve 10 and socket 5 are provided with projections 16, 7, and 6 by means of which they are firmly secured.
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