US33690A - Improvement in water-meters - Google Patents

Description

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Wifn esfe N JWM ILPETERS, PHDTO-LITHDGHAPHER, WASHLNGTUN. D. C.

UNITED STATES PATENT CEEICE.

iMPROVEMENT IN WATER-.M ETERS.

Specification forming part of Letters Patent No. 33,690, dated November' 12, 1861.

To aZZ whom t may concern.-A

Beit known that we, SILAS BAKKER and AUSTIN H. SMITH, of Hartford, county of Hartford, Stat-e of Connecticut, have invented anew and useful Improvement in the Construction of.\Vater-Mete1s; and we do hereby declare that the following is a full and exact descriptionthereof, reference being had to the accompanying drawings and letters of reference markedthereon.

The nature of our invention consists in the manner of discharging the water and the construction of the piston with its valves, &c.

To enable others skilled in the art to make and use our invention, we will proceed to describe its construction and operation.

Figure l is a side elevation of water-meter; Fig. 2, plan of water-meter; Fig. 3, section of water-meter, Fig. 4, end view of center section; Fig. 5, front end of meter, Figli, back end view of front head.

LetterA represents the cylinder; B, piston; C, valves; D, piston-valve; E, piston-rod; F, valve-rod; G, arm; H, pipe; I, springs; J, collars; K, rubber valve-seats; L, glass cover for piston; M, leather packing; N, springs 5 O, bushing; P, inlet; Q, outlet; R, water-passage from valve-chest to cylinder; S, guide for piston and valve rod; V, stufng-box- The cylinder A we construct with three parts, vbolting them together near the center. The center part of cylinderA is bored for the piston, and also the small cylinder or valvechest. Said chest is hushed with brass to prevent its wearing and rusting.

The piston B is made of a brass tube twice the length of the stroke, and near the center are two heads a suitable distance apart to admit of the passage lof the water. The outside of the piston B is covered with glass L to prevent the wear of the piston B. Into the center of the front head is attached the piston-rod E, and in the back one is the delivery-pipe H.

The valves C C are outside of the heads of piston B, and are connected together by the valve-stems running through the heads, and having sufficient length for the lift of the valves C C.

The piston-valve D has rubber valve-seats attached to each end of the piston D and work against each end of the valve-chest, closing the openings alternately. The upper part of the piston-valve D is cut away at each end on the top part, leaving the said part of the piston the same length of the opening P. Y

The valve-rod F is attached to one end of the piston-valve D, and the opposite end running through the guide S. On the valve-rod F are two collars J J and springs I I, which determine the length of stroke of the piston B. The openings from the valve-chest are made to lead the water from the front end of the valve-chest through the openings R in the center part of A to the back end of the cylinder and from the back end of the valvechest to the front end of the cylinder. The openings, being constructed to lead the water to the opposite ends of the cylinder, allow the valve D to travel in the same direction as the piston B and reverse the direction of the piston B as soon as it reverses the valve. The piston B being covered with a glass covering prevents the wear of leather packing M, which is in the conter part of the cylinder A. This leather is held out by springs N, bearing against the cylinder B and leather M. The ends of M are fastened to the cylinder by its having anges turned out, which are fastened between the three parts of the cylinder A A A.

The delivery-pipe His attached to the backl end of the piston, the outer end of H running through the stufng-box V to the outer pipe Q, which is larger than H. The operation of the meter is as follows: The water is let through the pipe ID into the chest, as represented by the arrows T T, the pistonvalve D being at the front end of the chest, the water passing out through the opening at the back end of the chest through the passage R to the opening in the front end of cylinder A, the pressure of the water in the front end of cylinder A closing the valves C C in the piston and opening them on the opposite side of the piston, allowing the water in the back end of cylinder A to pass out through the back head of the piston under the valves C C, and thence through the pipe H to the outlet. lVhen the piston B has traveled far enough for the arm G to strike against the springs I, closing it between the arm and collar J on the valve-rod, the valvepiston is then moved by the arm G until the openin` I is closed by the piston D shutting off the pressure from that end. The spring I has its power retained between the arm G and collar J, and as soon as the piston-valve has closed the opening P the pressure is relieved in the said end ot the valve-Chest, and the retained power of the spring,` I at once throws the piston-valve past the opening,` P and letting the water against the opposite side of the piston-valve, which closes the seat for the valve in the back end of the chest, and opening the valve in the'front end of the ehest,whieh lets the water from the front end of the chest to the back end of the cylinder.

The great advantages obtained in this method of constructing water-meters is in the durability of the packing and the method of operating the valves.

lVhat we ola-ini as our invention is" l. The arrangement ofthe cylinder A and the hollow piston B, said piston having an outlet H from one end.

2. The combination of the piston D and valves K K, said valves being on the end of the piston D and moved by the Valve-rod F.

3. The Combination ot' the glass covering L on the piston B and the leather packing M in the center part ot' Cylinder A, said packing1 being kept tted to the piston B by the springs N and held between the three parts ot' the cylinder A A A, all as herein set forth and described.

SILAS BARKER. AUSTIN H. SMITH.

Witnesses:

W. W. SMITH, A. XV. RoBERTs.

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