Patent GB-182440-A (GB)
Title: Improvements in and relating to apparatus for delivering measured quantities of liquid
IPC: B67D7/16
Filed: 1922-04-19
Abstract: 182,440. St. Louis Pump & Equipment Co., (Assignees of Hinds, S.). July 1, 1921, [Convention date]. Dispensing liquids.-Relates to liquid fuel dispensing apparatus of the type in which fuel is pumped into a measuring container with overflow at adjusted level and comprises operating and locking shafts which control (1) the pump supplying liquid to the container, (2) the admission and discharge from the container, and (3) the operation of a totalizer registering the amount discharged. The standard is made in five sections. The lower section 1 contains inlet and outlet pipes connected to the tank and an electric motor M which drives through chain gear 17 a pump P located in the second section. The third section houses an alternative hand-drive HC for the pump. At the top of this section are mounted the operating and locking handles and mechanism. The fourth section comprises the liquid container C to the top of which is hinged a dome 5 forming the fifth section which encloses the totalizer, a translucent globe 6 for advertizing purposes being mounted on the top of the structure. The inlet pipe I passes upwards within the structure and ends m a distributing box 135 at the top of the container C. The overflow pipe 33, the upper end 132 of which is adjustable, passes upwards to nearly the same height. The operating shaft OS and the locking shaft LS are at right-angles to one another. The latter carries a quadrant L<1> while the former carries a quadrant 0', both quadrants being slotted so that one can be moved only when the other is in neutral position. The shaft OS is provided with two handles OH and carries five devices, 0<2>, 0<3>, 0<4>, 0<5>, and the quadrant 0<1>. The arm 0<2> engages the end of the spindle of a by-pass valve BV, which when open connects the inlet and outflow pipes 1, 33 directly. The arm 0<3> is pivoted to a sliding link 59 engaging the end of a weighted lever The arm 0<4> is pivoted to a link 71 adapted to engage a pivoted arm operating a spring-controlled discharge valve DV. The arm 0<5> operates the motor switch. The locking- handle LH is pivoted to a lock shaft LS so that it can be swung forward and away from the standard. It has a curved portion which in the locking position serves to secure the hose D and the nozzle. The lock is of the slida.ble-barrel tumbler type, operated by a key. The locking shaft LS is provided with four devices. Of these the quadrant L<1> and the handle LH form two. The third device comprises a pinion engaging a sliding rack 107 which in turn engages the spindle of the emptying valve EV. The fourth device consists of a spiral cam 109 which co-operates with a vertical rod 111 and bell-crank lever to move a wheel 115 into and out of gear with the drive wheel of the totalizer T. The container, which is made of glass, is surrounded by a screen 143 and is provided with two scales Q formed by two rods 121, 123, the former being notched at regular intervals while the latter is threaded and provided with plates 125, 127 secured by lock-nuts. Each plate has a small hole which is closed by a film when the liquid is at or above the level of the plate, the breaking of the film forming a sharp indication of when a certain level is reached during discharge. A guided float F is located in the container and is attached to a chain 139 which passes round a drum 165 mounted on a sleeve carrying a pinion gearing with a sector over which passes a chain to a counterweight. The drum 165 is connected to the wheel 115 by ratchet gear so that the wheel is only operated during the fall of the float. The wheel is thrown into gear with the totalizer-driving wheel when the locking shaft is in neutral position. When the apparatus is looked, the hose is stowed, the handles OH in neutral position, the valves BV, DV closed, and the valve EV and the motor switch open, the container being empty. To use the device, the key is inserted and the lock opened. The handle LH is then turned to neutral position unlocking the operating handles OH. This movement also closes the valve EV and connects the totalizer to the float. The handle OH is thrown over towards the rear, thus closing the motor switch and raising the weighted lever. When the operator releases the handle OH it is returned to neutral position through the action of the weight, the motor switch being opened. To discharge, the hose is inserted into the receptacle and the handle OH pulled forward. This locks the shaft LS in neutral positon, locking the valve EV closed. The by-pass valve BV and discharge valve DV are opened and also the motor switch opened. Discharge may be stopped at any moment by releasing the handle OH.