| 摘要 |
733,558. Closures for resisting fluid pressure. WALES-STRIPPIT CORPORATION. Aug. 29, 1952 [March 12, 1952], No. 21800/52. Class 123 (1). [Also in Groups XXVI and XXXII] A liquid spring comprises a vessel 20 having a wall 22, and a closure 35 for the vessel having a part 50, attached to the wall 22, and another (integral) part 60 which tapers in thickness to terminate in a thin marginal lip and is formed to flex with flexure of the wall 22 (Fig. 11, not shown) under high pressure developed in the vessel. In Fig. 6, the closure has a face 70 which is wholly cylindrical and of a diameter equal to that of the bore of the vessel 20 at a protuberance 82. The normal diameter of the vessel bore is slightly greater, and affords an annular space for welding metal or bronze 80. In Fig. 2 there is no protuberance 82 in the vessel bore, but the closure near its inner end has its outer diameter progressively increased. In another construction (Fig. 10, not shown), the vessel bore and the corresponding surface of the closure are wholly cylindrical, an annular space between them being filled by the welding metal or bronze. The invention is also applicable to the head through which the plunger of the spring operates (Fig. 7, not shown). In Fig. 7, the marginal lip only contacts the wall 22 at three peripherally-spaced points (Figs. 8, 9, not shown). Specifications 733,084 and 733,561, [both in Group XXXII], are referred to. |
