GB615775A - Improvements in or relating to liquid dispensing apparatus - Google Patents

Abstract

615,775. Counting-apparatus. AVERYHARDOLL, Ltd., and FRASER, J. Aug. 15, 1946, No. 24348. [Class 106 (i)] Mechanism for showing the cost of a quantity of liquid delivered by a liquid dispensing apparatus is driven in common with quantity indicating mechanism and comprises a band on which is marked in sequence the cost of increasing numbers of unit quantities of the liquid and which is traversed past a window at such a rate that it moves one step for each unit quantity delivered, and a masking band interposed between the first band and the window is traversed past the window at such a rate that an aperture in the masking band registers with the window only at the completion of the delivery of each successive unit quantity of liquid. A gear 45, driven together with indicating pointers 12, 13 from the meter of the dispensing apparatus, drives a pinion 44 which via a bevel pinion 42 drives a flange 34 of a tubular shaft 21 mounted on a sleeve 18 which is rotatably mounted on a shaft 19. The tubular shaft 21 is connected by a train of gears 46, 47, 48, 49 to the shaft 19, the gearing being such that the shaft 21 rotates once for each revolution of the pointer 12 and the shaft 19 once for each revolution of the pointer 13. On the shaft 19 is a flange 22 on which is a friction washer 26 and a disc 27, the washer being secured to the flange and the disc. Located on a boss 28 on the disc is a drum 31, the rim 32 of which carries a band 50 or markings showing cost markings corresponding to the quantity markings on dial 11. Resting on a friction washer 39 on the flange 34 is a drum 35 having a rim 36 which surrounds the rim 32, the drum being urged into frictional contact with the flange by a spring 37. An aperture 51 in the rim 36 registers with the window 14 once per revolution, whenever the pointer 12 reads zero, so that the cost of the quantity of liquid shown by the pointer 13 is visible through the window on the inner drum 31. To duplicate the reading at the rear of the apparatus the drum 31 has an upper and a lower set of markings and the drum 35 has upper and lower 'apertures spaced 180‹ apart. Catches (Figs. 3, 4, not shown) on the drums engage stop pawls when the drums are at zero so that when the readings are being returned to zero the drums cannot turn too far. Also, the disc 27 carries a pawl 63 urged into contact with ratchet teeth 64 on the shaft 21, the ratchet slipping during forward movement of the drums but engaging during reverse movement so that the disc 27 turns on the shaft 19 and turns the drum 31 with the drum 35 for zeroising.