| 摘要 |
1,210,121. Raising water closet seats; catch fastenings. W. LEON and L. J. N. SCHUTTEROP. 30 Jan., 1968 [30 Jan., 1967], No. 4763/68. Headings E1C and E2A. A water closet seat 2 is raised by a rod 4 operated by a pedal 6 via a hollow piston 16 which can slide in a sleeve 7, and which is connected by a helical spring 24 to a hollow cylindrical member 17 screwed on to the bottom of the rod 4. A flat spring lock 30 is provided, which engages a pin 19 mounted in the piston to slide in a vertical slot in the sleeve, the pin causing the lock 30 to rotate against a spring 32 as the pin rises, and then to spring back to hold the pin in a recess 37 (Figs. 5-7, not shown) therein, from which the pin is released by a second depression of the pedal, causing the pin to rise again, and to engage a cam surface 39 while descending, pushing the lock outwards and thereby returning to its original position. A seat cover 3 is raised either by a spring 27 (Fig. 3, not shown) on the seat hinge, which normally keeps the cover just out of contact with the seat, and pushes the cover past the vertical plane when the seat is raised, or by a rod 40, (Fig. 8, not shown) fixed to the piston 16 and slidable in a bore in the rod 4. |
