US117229A - Improvement in liquid-meters - Google Patents

Description

' UNITED STATES PATENT .OEEICEQ DAVID WILLIAMSON, OF NEW YORK, N. Y., ASSIGNOR TO HIMSELF ANI) EUGENE BISSEL, OF SAME PLACE.

IMPROVEMENT IN LIQUID-METERS.

Specification forming part of Letters Patent No. 117,229, dated July 18, 1871.-

T0 all whom it may concern:

Be it known that 1, DAVID WILLIAMSON, of the city and State of New York, have invented -an Improvement in Meters for Liquids or Fluids;

andthe following is declared to be a correct description thereof'.

This invention relates to an eight-way double cylindrical cock, applied to and combined with the pistons or swinging wings of a water-meter. I have illustrated my invention in connection with swinging wings in a double segmental case,

y the eight-way cock being applied at the center of the case. This eight-way cook is made of two cylinders, one within the other, so constructed with slots or ports andinoved by the pistons or wings that when one of the wings is nearing the end of its movement the cylinder of the cock is turned so as to open the supply and exhaustports to the other wing without altering the position of its own ports, so that the iirst piston must complete its stroke and will cause the second piston to be moved, but when the second piston nears its extreme movement it changes the supply and exhaust-ports of the first piston without changing its own ports; thus, while ea ch piston is obliged to make its complete movements, and thus register the quantity of water correctly, the motion of the cock to change the port does not come from the piston whose ports are to be changed, but from the other one. This prevents inaccuracy of registration, or the possibility of the meter stopping at any point where the water could be shut oft' entirely, or where it could run through without registration.

In the drawing, Figure l is a plan of the meter, with one head removed. Fig. 2 is a vertical section at vthe line w and the other figures are detached views of the cylinders in their various positions.

The case of the meter is made of the cylindrical segments a and b, with abutments o and d between them, and centrally to these segments are the two cylinders e and i, forming, by their slots or ports, an eight-way cock. The pistons or swinging wings g and h are made with ring-straps l a passing around the respective cylinders e fi, and in these ring-straps slots or notches may be introduced, and upon the cylinders e t' are blocks or studs entering these slots, and the length of these slots is such that the wing will swing without moving its cylinder until it comes toward the latter part of its movement, and then the part of the ring at the end of the slot, taking the stud, moves the cylinder sufficiently to change the position ofthe ports for the opposite side of the meter. These slots only lessen the movement of the cylinders e 1'., and they may be of greater or lesser length, according to the extent oflnovement required. The liquid or fluid is introduced at one end of the cylinder i by the pipe m, and passes away by the pipe u1 from the opposite end of said cylinder fi, there being a diaphragm or partition, 02.2, in said cylinder fi, so that the water has to go into and out of the segmental case, and hence move the pistons or wings. In the cylinder e are eight openings or ports, numbered l 2 3 4, which are outlet or induction-ports, and 5 o' 7 S, which are inlet-ports. In the cylinder are three induction-ports, 9 l() 1l, and two eduction-ports, 12 and 13. The piston h moves the cylinder e at the extremes of its motion, and in so doing lets the water into or out of the segmental case a to move the piston g.

The abutments c d act as cut-offs, and the operation is as follows: Starting with the parts in the position shown in Figs. 3 and 4, the water is passingthrough the pipe m and cylinder i, and away by the ports 9 and 8, to move the piston g inthe direction indicated by the arrow, the portsdOV and 6 being also open to allow water to iill the case b. The piston g, moving, forces the water in front of it out through the passage in the abutment d, and away by the ports 3 and 13 and pipe nl, below the diaphragm n2. reaches its extreme movement the cylinder 12a-receives a partial rotation by means of the slot in the ring Z acting upon the pen 24, which brings the parts to the position shown in Figs. 5 and 6, in which the ports 5 and l() are open, to allow water to pass behind the piston h and force said piston in the direction indicated by the arrow, and the water in the case b is forced through the ports 2 and 13 and away by the pipe fnl. The ports 9 and 3 are also open to allow water to continue to ill the case af. Before the arm h reaches its extreme movement the slot in the ring u acts upon the pin 25 and moves the cylinder e to the position shown in Figs. 7 and 8, so as to open the ports 7 and 11 and allow the water to act against the piston g and give it its return movement, and force the water in the case c out through the passage in the abutment c and Before the arm g away by the ports 4 and 12 and pipe al. The piston g in moving will bring the cylinder i back to the position shown in Figs. 3 and 4, so as to bring the ports into position to allow the piston hA to receive its return movement, and said piston L in its return movement will return the cylinder c to the position also shown in Figs. 3 and 4, when the operation of the parts will be a repetition of the above.

I claim as my inventionl. Two cylinders, moving one Within the other,

Y and provided with induction and eduction-ports,

and connected with two moving pistons or Win gs, substantially as set forth, so that the induction

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