Patent GB-939076-A (GB)
Title: Improvements in or relating to the dispensing of liquids, such as petrol and other motor fuels
Inventor: ASHFORD ERNEST STANLEY
IPC: B67D7/08
Filed: 1961-06-15
Abstract: 939,076. Dispensing liquids. VEEDERROOT Ltd. Sept. 4, 1962 [June 15, 1961], No. 21738/61. Class 116. In a petrol dispensing arrangement having at the point of delivery a remote control indicator variable at will to indicate the price per gallon and cost of fuel delivered, three units are provided for increments of <SP>1</SP>/ 10 th cent, 1 cent and 10 cents respectively each unit having a shaft 3 carrying nine gear-wheels having 10, 20, 18, 24, 30, 36, 42, 32 and 36 teeth respectively and an output shaft 4 carrying gears having 40, 40, 24, 24, 24, 24, 24, 16, 16 teeth respectively and a suitable gear 5 for locking the shaft at a zero setting, the shaft 3 being coupled to shaft 4 by means of idler gears 6 to give ratios of 1/4, 2/4, 3/4, 4/4, 5/4, 6/4, 7/4, 8/4, 9/4 or a locking device, each idler gear 6. being mounted on a selector lever 7 so that when the lever is raised about a pivotal mounting on shaft 4 the idler gears roll around the gears on shaft 4 and come out of mesh with the gears on shaft 3. Also mounted within the casing is a price-indicating shaft 8 carrying a set of cams 9 and coupled through a spiral gear 10, on the outside of the casing, leading to a price-indicating disc or drum, not shown. A grade selector 11 comprises spaced frame members 12, 13 fast on a drive shaft 14, between which plates 12, 13 is mounted a series of nine rollers 15 on each of seven individual shafts 16 and a detachable plate 17 has ten apertures so that on rotation of shaft 14 one set of rollers is brought into alignment with the apertured plate 17. Each selector lever 7 is bifurcated at its free end to provide a tail 18 to engage a shoulder 19 on one of the cams 9 and when this occurs the cam is locked against further rotation and a finger element 20 on the lever 7 rides on the surface of rollers 15 in its plane. To provide the necessary drive to the cost indication means and represent the cost of petrol being delivered the three output shafts 4 from the three units are coupled together by means of a gear-wheel 21 meshing with an integrator gear 22 carrying two studs 23 in which are freely mounted two planet gears 24. In the 1 cent and 10 cent units a shaft 25 carries the output from the previous unit by means of a pinion 26 passing through the centre of gear 22 and engaging gears 24. A further gear 27 on the right hand side of the unit meshes with the smaller gears 28 on planetary gears 24. The reset is obtained by means of a motor the drive of which is coupled to a drive shaft 29 through couplings 30, 31 to the adjacent unit, the couplings 30, 31 being interconnected by the shaft 29 upon which is mounted a frictionally driven gear-wheel 32 which engages a gear 33 on the shaft 8 so that if none of the cams are prevented from rotation by one tail 18 of a selector lever during the resetting all the cams will rotate continuously for at least two turns in the direction of the arrows on Fig. 3. A clutch drive from the reset motor not shown permits the grade selector 11 to .rotate to a specific position when a setting knob in the control panel is set for a particular grade. If the grade selector plates have stopped in a particular grade position such that the rollers 15 have a gap opposite a selector lever 7 the lever will drop and the idler gear carried by it will engage a gear on the shaft 3 to drive a specific ratio for money computation and tail 18 will stop the particular cam 9 to indicate through gear 10 which lever has dropped into place. Suitable adjustment to the money wheels may be made to indicate the price in sterling.