| 摘要 |
1,084,379. Pistons. F. SNEEN. June 6, 1966 [June 8, 1965], No. 25085/66. Heading F2T. The packing 11 for the piston 2 of an hydraulic motor is carried by a mounting plate 7 which is slidably removable from the end of the piston in a direction perpendicular to the longitudinal axis of the piston. As shown, the mounting plate is provided with flanges 8 which intermesh with side flanges 6 on a piston of square cross-section, the plate being removable through an aperture 3 in the cylinder. The piston may be straight or annular independent of the cross-section and a boss 17 on the end of the mounting plate serves to protect the packing should the piston strike the end of the cylinder. The packing 11 is held on the mounting plate 7 by bolts (18), Fig. 1a (not shown). In another embodiment, Figs. 3 to 6 (not shown), the mounting plate is provided with a projection in the form of a stem (12) and disc (13) which slots into a T-shaped groove (14) in the end face (5) of the piston; instead of a stem, a hook may be provided. |
