Patent GB-264568-A (GB)
Title: Improved means for delivering liquids in measured quantities by volume
IPC: B67D7/16
Filed: 1925-10-19
Abstract: 264,568. Bedford, F. Pilmore-. Oct. 19, 1925. Fixed-Chamber apparatus with printing, recording, and counting apparatus.-An apparatus for delivering measured volumes of liquid comprises a vertically slidable pipe serving both as an overflow pipe, down which excess liquid passes back to the main supply tank, and as a delivery pipe, down which the liquid is supplied to a customer. Selective setting-devices for adjusting the height of the pipe determine the amount to be delivered, and recording and ticket-printing devices are fitted. Fig. 1 shows a device comprising a chamber 1 with one or more windows 3, serving as a visible-level measuring-chamber, into which liquid is forced by a, pump 4 through a pipe 5. An overflow and delivery pipe 6 telescopes over another pipe 7, and slides into the chamber 1 to a variable distance. Its lower end is fitted with a stuffing-box 40 described in Specification 264,730, [Class 122 (v), Stuffing boxes &c.]. The lower end of the pipe 7 bifurcates a part 8 leading back to the main supply tank, and the other part 9 leading to the delivery pipe; the junction is controlled by a cock 10 operated by a handle 11. The pipe 6 is adjusted vertically by arms 16, the lower ends of which are attached to a rack 12 moved by a pinion on a shaft 14 rotated by a handle 15, the amount of the lift being controlled by a device shown in Fig. 5, comprising a number of horizontal rods 17, each of which corresponds to a definite quantity of liquid to be sold. Each of these rods 17 has a projecting arm 20 normally resting in the vertical limb of an L-shaped slot 19. To adjust the overflow pipe 6 a selected rod 17 is given a quarter turn, so that an arm 20 thereon is moved into the horizontal position, and the rod 17 is then thrust inwards, carrying the arm 20 into the horizontal limb of the L-shaped slot 19, and flexing a chain 21 which straightening elsewhere, ensures that all the other rods 17 are in an inoperative position. The upturned arm 20 on the selected rod 17 is thus projected into the path of the rack 12, and thus limits the upward movement of the pipe 6, the exact settings being determined by screw pins 22. When the pipe 6 has been set, the measuring chamber is filled until the liquid overflows down it. The delivery cock 10 is then rotated and the pipe 6 depressed to zero or other position, when the liquid is delivered, the container being wholly or partly emptied. Indicating and recording quantitv sold. The rotation of the cock 10 carries with it a quadrant-shaped plate 32 with a cam-slot 31, Fig. 7, which operates, by means of links 30, a clutch element 28, and forces it into engagement with a similar element 27 on a drum 23. A similar clutch 34 operates a recording counter 33. On the drum 23 are preferably marked volumes and costs of the quantities sold. The drum is free on its shaft as the pipe 6 rises, but is rotated, to an extent corresponding to the lowering of the pipe, as it is lowered. To prevent the rack 12 and pipe 6 from being raised except when the cock is in the overflow position, a pawl 50 is held in engagement with the rack by links 30, 30<b>, and to prevent backward rotation of the drum 23, a pawl 26. Fig. 8, engages with gear on its axis; this is lifted by hand after completion of the operation. A sales-record and receipt printing-device comprises a pair of paper strips 61. 62 passing from rollars 63, 64, and between feed rollers 64<a>. 65; the free end of one passes through a slit 66 in the casing, and is torn off; the other strip is wound on a roller 67. The drum 23 is provided with pin-like cutters or perforators 71, and a push-rod 69 forces an abutment block 72 against these cutters so as to imprint on the strips records of the sales. In a modification, the drum 20 is replaced by a disc-like indicator. The container is fitted with the visible level indicators described in Specification 271,172.