US106878A - Improvement in liquid-meters - Google Patents

Description

H. 0. SERGEANT.

I Liquid-Meter.

No. 106,87 P atentedAug. 30, 1870.

NJTERS. PHOTO-LITNOGRAPHER. WASmNGTbN. 11C.

incited swa atwt Qttjiirr."

Figure 4, a vertical section, taken at right angles tons; and

close or water-tight thebearings through which the tion may be gotten up cheap, and will be found efliicient and correct under both light and heavy streams.

HENRY O. SERGEANT, NEWARK, NEW JERSEY, ASSIGN-OR TO WILLIAM TOBIN, OF NEW YORK CITY. l

Letters Patent No. 106,873, dated August 30, 1870.

IMPROVEMENT IN IlIQUID-METERS.

The Schedule referred to in these Letters Patent and making part of the same.

To all whom it may concern.-

Be it known that I, HENRY O. SnneEAsT, of Newark, in the county of Essex and State of New J ersey, have invented a new and useful Improvement in Liquid-Meters, of which the following is a full, clear, and exact description, reference being bad to the accompanying drawing forming part of this specification, and iu'which Figure 1 represents a plan with the top removed;

Figure 2, a front or end view of the same, with the outer portion of the case removed; Figure 3, a vertical section, taken, as denoted bv the line a: m, longitudinally through the center of one of the cylinders or measuriugchamhers; and

of my improved meter,

:10 fig. 3, and as indicated by the irregular line 3 y in Similar letters of reference indicate correspoluliug parts.

My invention relates to meters which employ two or more reciprocating pistons working in adjacent cylinders, and cont-rolled by valves operated by the pis- It consists in a certain combination of such devices whereby each piston is made to operate a separate crank-shaft that is connected by gearing with the crank-shaft of the adjacent piston, and the valves are operated by the pistons which they respectively serve to control.

By such arrangement or combination cross-passages from the valves to the cylinders are dispensed with, and, although the crank-shafts are geared to-make them work in time, and to carry the cranks over the dead-centers, yet each piston,,with its crank-shaft and valve, is separate and distinct from the other, so that said parts are made to'maintain their proper relative position in case of wear at the jointsor bearingsof the connections which couple eitherpositionwith its respective valve.

Furthermore, the arrangement is such that leakage from the one cylinder to the other is avoided; and the gear-wheels that serve to couple said shafts operate, by lateral pressureof the fluid on them, to make crank-shafts revolve. V

The invention also includes a novel arrangement of passages and peculiar construction of the cylinders whereby cheapness and simplicity are secured, and the cylinders, which are formed out of tubes, are retained in position by merely swelling or riveting down their ends j A-meter constructed in accordance with this invenable tubes, which may be cut to their required lengths from one and the same piece of tubing, ready, without boring or dressing, for insertion in their places within an outer water-case or box, B, by slipping them within or through ribs a a, arranged to project internally from the case B, that is, divided longitudinally,as by a'partition, b, beyond or outside of both ends of the cylinders, and by the ribs or flanges a a, within which the endsof the cylinders fit,'to form independent or separated water-spaces c c at opposite ends of the cylinders.

The space at, between the ribs to (tof both cylinders, is open and continuous, and forms an exbaust-ohamher for bothcylinders, and said ribs or flanges are so disposed, relatively to the ends of the cylinders, that the latter are secured therein by simply swelling out or riveting downthe ends of the cylinders thereon, as represented in fig. 3, such ribs being preferably bored or reamed out 'to secure truth and proper fit of the. cylinders. v

This is at once a cheap, simple, and efficient way of constructing and securing the cylinders, and of providing for an'exhaust-passage all around and between them,

Each cylinder A A is fitted. with a reciprocating piston, C or C, the rods D D of which are connected to cranks E E, on independent vertical shafts F F, which project up into a valve-box or chamber, G, that has the inlet 0 connected with it, the outlet f from the meter being in connect-ion with the exhaust-chamher (I. I

The crank-shafts F 11" have mounted on their upper ends, within the valve-box G, spur-wheels H H, which mesh into one another, to secure a timely action of the independent pistons, and to aid the cranks E E, which are set at diiierentangles, in passing their deadcen'ters; otherwise the two pistons and their workingcounections, including the valves, are disconnected and separate and distinct from each other, either piston operating the valve which controls it, as by rods 1 I, operated by eccentric pins g g on the wheels H H, and attached, at their opposite ends, to the valves J J, which latter may be ordinary slide D-valves arranged over the cylinders, the pistons of which they respectively control, and in communication, by suitable passages n n and o, with the ends of the cylinders, and with the exhaust-chamber d. I do not restrict myself, however, to any particular form of valve.

By this combination and arrangement of parts, all

ates, and through separate crank-shafts as regards both pistons, the valves, with their respective pistons and connections, are made to maintain their proper relative positions and actions in case of wear at the joints or bearings of the connections which couple either piston with its respecthevalre.

The crank-shafts F F work through downwardlyprojecting bearings h h, from the upper portion of the case A, or front chambers c 0 thereof, said bearings preferably being lined with light brass bushes 'i, and each shatt protected by a brass sleeve, k, formed into a flange below the spur-wheel H or H, mounted on said shaft.

A leather or other suitable packing-ring, m, is interposed between the under surface of saidwheel and bottom of the valve-box, around the shaft or its sleeve 70.

B these means the bearin s are rotected from .Y a P corrosion, and the lateral pressure of the fluid on the upper surface of the wheels H H, makes close or secure the joints at the ends of the bearings, and prevents leakage past the independent crank-shafts of the meter.

The registering mechanism may be operated by one of the eccentric pins 9 g, or in any other suitable manner.

What is here claimed, and desired to be secured by Letters Patent, is-

1. The combination of the independent crank-shafts F F and gearwheels H H with the pistons G O, the

cylinders A A, and the valves J J, operating essentially as shown and described.

2. The cylinders A A, made of tubing, and fitted at their ends within ribs or flanges ac, said ribs being arranged to project from the interior of the box or case B, and secured therein by swelling out or riveting down the ends of said tubes over or on the ribs which carry them, essentially as described.

' 3. The arrangement of the exhaust passage 0r chamberd, relatively to the cylinders A A ancl'ribs or fla'nges a a, in combination and with the valves and their passages and inlet and outlet, substantially as herein set forth.

4. The arrangement, relatively to the bearings h h or outside ends thereof, through which either crankshaft passes, of the wheels H H, together with their intervening washers or packings k, essentially as de' scribed, and whereby leakage past the crank-shaft is prevented by lateral pressure of the fluid on the wheels, as herein set forth.

r HENRY O. SERGE; NT.

Witnesses:

FRED. HAYNES, R. E. RABEAU.

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