Patent GB-380039-A (GB)
Title: Improvements in liquid dispensing apparatus
IPC: B67D7/08
Filed: 1931-02-23
Abstract: 380,039. Counting apparatus. LOLLEY, W. H., 352, State Street, Albany, New York, and GOSS, H. T., 78, Chestnut Street, Rutherford, New Jersey, both in U.S.A. Feb. 23, 1931, No. 5605. Convention date, Oct. 29, 1930. [Class 106 (i).] In a liquid dispensing apparatus having liquid-elevating means such as a pump or other means whereby liquid may be forced from a tank and an indicator for indicating the amount of fluid dispensed, the operation of said means is adapted to be effected only after the indicator has been returned to its initial position by an energy storing device automatically rendered operative by the removal of a delivery nozzle from its support. The indicating dial 28, of which part only is visible through a lens 29, is mounted on an annular gear 65 carried by spiders 64 supported by sleeves 63 in which is mounted a shaft 33 carrying a dial 35 for recording gallons. The sleeves 63 are held in position by bearings 62 on a frame 60 supported on a platform 57 beneath which the fluid meter 46 is supported and carry pinions 66 secured thereto by screws 67 by which the sleeves 63 and spiders 64 are rotated in the opposite direction so as to return the indicating dial to the zero or initial position. The annular wheel 65 gears with a gear wheel 75 mounted on a jack shaft 69 carried by the frame 60 which is supported in the casing by rods 61. The shaft 69 is rotated from the meter shaft 47 being connected thereto by clutch mechanism for recording the amount of liquid delivered and the shaft 33 is driven from the shaft 69 by gearing 68, 70, 71 so proportioned that the shaft 33 rotates twice as fast as the shaft 69. The gears 65, 75 are also so proportioned that one graduation on the dial 28 passes a fixed pointer 30, which indicates the number of gallons of liquid delivered, for each half revolution of the jack shaft 69 or each gallon of liquid delivered. The clutch mechanism comprises a detent 81 movable into or out of engagement with a disc 80 carried by a sleeve 79, freely rotatable on the shaft 69 and carrying a bevel wheel 77 which gears with a bevel 78 on the shaft 47. The detent 81 is mounted on the end of a spring-controlled lever 83 which is pivoted at 84 to a bifurcated arm 82 fixed to the shaft 69 and has its lower end 85 near to the said shaft. The shaft is declutched from the sleeve 79 by a sleeve 88 which engages the end 85, is slidably mounted on the shaft and is moved by a bifurcated arm 90 engaging grooves 89 on the sleeve 88. The arm 90 is mounted on a shaft 91 which is carried by a bracket 92 supported on the platform 57 and which carries a clutch lever 93 kept normally in the horizontal position by a spring 94. When the nozzle 21 is on its support 39, a member 105 on the end of the lever 93 is engaged by a pawl 104 carried by an arm 99 forming one part of a bell-crank lever 97, 99 mounted on a bracket 100 carried bv the platform 57, the arm 97 being adapted to move through an aperture in the casing 20, and, when the nozzle 21 is on the support 39, is held in position by the guard 55 of the nozzle 21. When the nozzle is removed from its support, the pawl 104 is rotated and depresses the part 105, the sleeve 88 being thus moved to the left and thus declutches the shaft 69 from the meter shaft, thereby permitting the indicator to be returned to the zero position before the delivery of the liquid commences. The pawl 104 is provided with an arm 106 which in the normal position contacts with a stop 108 on the lever 99 and an ear 107 to which is secured one end of the spring 18, the other end of which is secured to the lever 99 which is weighted as at 101. In order to connect the shaft 47 to the shaft 69 after the indicator has been returned to its zero position, the bell-crank lever 97, 99 is so designed that, after the lever 93 has been depressed, it rides past the lever 93 which is then raised by the spring 94, the shafts 69, 47 being then connected and allow the indicator to work. To hold the lever 93 depressed until the pump is operated, the lever is brought against the arm 112 of a lever pivoted at 113 to the frame 60, the said arm yielding outwardly to allow the lever to pass beneath a shoulder 114 on the lever 112, the outer end 111 of which is curved outwards and engages the rear surface of the dial 28. Owing to the action of a spring (not shown) the shoulder 114 springs back on the part 105 and holds the lever 93 in the depressed position. To return the dial 28 to the zero position, a segment gear 116 is pivotally mounted on a rod 61 and is provided with an arm 118 to which is secured one end of a spring 117, the other end of which is connected to another rod 61. The gear 116 engages the pinion 66 and therefore the dial 28. When the delivery of fluid is being recorded on the dial which is rotated in a clockwise direction, the gear 116 is rotated in the opposite direction thus putting the spring 117 under tension. When the shaft 69 is disconnected from the shaft 47, the spring 117 moves the gear 116 in a clockwise direction thus rotating the pinion 66, sleeve 63 and the spider 64 and returning the dial to the zero position. To stop the zero on the dial at the point 30, a stop on the dial contacts with a stop on the frame 60. If, before the dial reaches the zero position, the nozzle 21 is returned to its support, the arm 99 will be moved upwardly although the part 105 is held by the latch 114. As the arm 99 moves, the upper edge of the pawl 104 will strike the lower surface of the part 93 and the pawl will be rotated about its pivot to move past the part 93 which will be held down so that the clutch remains released and thus there is no delivery of liquid. When, however, the dial 28 is returned to the zero position a boss on the rear face of the dial engages and moves the lever 111 the latch 114 being then withdrawn from engagement with the lever 93 which is thus released and the shafts 69, 47 are again connected. The electric motor 44 which drives the pump 43 and meter 46 is operated from a circuit which is provided with two sets of switches, one set being closed when the nozzle 21 is taken off the support 39 and the other set when the dial 28 has been returned to its zero position. To enable the motor 44 to be operated a gap in the motor circuit is closed by other switches operated by an electromagnet, the circuit of which is not completed until the second set of switches referred to above is closed. To give an audible indication of each unit of fluid passing through the meter, the clapper of a bell 166 is operated by a cam on the shaft 69 means being provided to allow the cam to ride past the clapper without causing its vibration when the shaft 69 is disconnected from the shaft 47.