GB216874A - Improvements in or relating to horizontally pivoted sluice gates - Google Patents

Abstract

216,874. Ransomes & Rapier, Ltd., (Assignees of Sommer, 0.). May 28, 1923, [Convention date]. Sluice gates. - In a horizontallyhinged sluice gate of the type which is raised and lowered by means of ballast chambers within the gate, dash-pots are provided which check the movement of the gate and thus enable it to be maintained in any desired position. The gate comprises a float mounted on hollow horizontal pivots a<2>, Fig. 1, and having a series of ballast chamlers a. Water from upstream flows into a chamber c, Fig. 3, whence it is led by a pipe c' to a cock b bv means of which the chamber c can be put into communication either with the compartments a through the hollow pivot a<2>, or with the downstream side of the gate by means of the pipe b<2>. Formed in the gate is a series of dash-pot chambers d in which are located pistons d<1>, Fig. 1, secured to the floor of the channel. The water in the chambers d escapes through leak holes e<1>, e<2> as the gate falls. To facilitate the raising of the gate the chambers d can be connected to the upstream chamber c by valve controlled ducts k, k<1>. The dash-pot chambers d can be rapidly emptied by placing them in communication through conduits h<1> with a dis. charge passage h controlled bv a valve. The valves may be controlled either by hand or automatically by mechanism connected to the gate. The plungers of the dash-pots may be carried by the gate and the cylinders formed in the floor of the channel.