| 摘要 |
<p>566,073. Jointing by stamping. AUTOMOTIVE PRODUCTS CO., Ltd., and BROCK, W. H. J. May 6, 1943, No. 7210. [Class 83 (iv)] [Also in Groups XXVIII and XXIX] Relates to dished washers or discs for use in or on tubes or like members to exert a gripping engagement upon flattening and consists in a form that compensates for variations in the size of the tube &c. and consists in dividing the edge that engages the member into a number of sections each having a limb extending circumferentially to bear resiliently against the member. The washer 10 may comprise radial arms 12 extending from a central disc 11 and extended circumferentially at 13a, 13b. The washer is dished as shown in Fig. 2, and the limb 13a, 13b is initially curved to a greater radius than that of the member in which the washer is to be inserted, for example, a piston 18 having a valve 16 that is seated by a light spring 15 that abuts the washer 10 retained in a counterbore 19 against a shoulder 20. In other examples, the washer may be expanded into a groove in the outer member and is shown as closing a chamber for retaining the ball of a ball valve, and as securing a closure member in a tube. In another form the radial arms 12 are formed with eyes 12a, Fig. 6, to impart additional elasticity or they may be formed corrugated or sinuous. In other forms, the limbs extend from one side of the arms only and all in the same direction, or arms such as 13a, 13b extend from the vertices of a triangular centre portion. Fig. 9 shows a form to grip a member 30 externally, the comparatively thin outer ring 31 providing the required elasticity. The washers may be of square or other non-circular shape and be subsequently secured in position by brazing, Soldering or welding.</p> |
