US572414A - Meter - Google Patents

Description

J. H. DIXON.

.'METER.

(No Model.)

Patented Deo. l, 1.896.

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WITIVSSES:

i UNITED STATES PATENT OFFICE.

JOHN H. DIXON, OF MARIETTA, OHIO.

METER.

SPECFICATION forming part of LettersPatent No. 572,414, dated December 1, 1896. Application {ilecl November Z1, 1895. Serial No. 569,636.v (No mocleLl To all whom it may concern.-

Beit known that I, JOHN H. DIXON, of Marietta, in the county of Washington and State of Ohio, have invented a new and Improved Meter, of which the following is a full, clear, and exact description.

The invention relates to meters having flexible diaphragms and valves controlling the inilow and outilow of the Huid.

The object of the invention is to provide a meter of this general character Which shall be simple and durable in construction, very accurate in operation, not liable to get out of order, and arranged to measure gas, water, or other Huid passing through the meter, no matter in what position the meter may be.

The invention consists principally of a ilexiH ble diaphragm operating in a measuringl chamber provided with inlets and outlets and a duplex valve con trolling the iniiow and outflow of the fluid to the said chamber, the valve being controlled from the diaphragm by a special mechanism.

The invention also consists of certain parts and details and combinations of the same, all as will be fully described herein after and then pointed out in the claim.

Reference is to be had to the accompanying drawings, forminga part of this speciiication, in which similar characters of reference indicate corresponding parts in both the figures.

Figure l is a sectional side elevation of the improvement, and Fig. 2 is a similar view of the same with the parts in a different position.

The improved meter is provided with a casing A of any desired form and containing a measuring-chamber B, in which operates a diaphragm C, preferably provided with a rigid center piece C and a iiexible margin O2, connected with the sides of the chamber B at or near the middle thereof. In one end of the chamber B and near the upper and lower ends thereof are arranged the ports ce and b, opening into a cylinder D, connected at its middle with a supply-pipe E, and opening at its opposite ends into a chamber F, surrounding the chamber B and connected with an outletpipe Gr.

In the cylinder D is arranged a duplex piston-valve H, having the pistons H and H2 secured on a common valve stem or rod H3, eX- tending through a stuffing-box I, held on a partition J separating the upper portion of the chamber F from a chamber J, containing the working mechanism and the registering device, as plainly shown in the drawings. The pistons H2 and H are adapted to operate over the ports a and b, respectively, in such a manner that when the duplex piston-valve is in the position shown in Fig. l then the cylinder D is connected by the port b with the interior of the measuring-chamber B at the lower end thereof, While the upper portion of said chamber is connected by the port ct and the upper end of the cylinder D with the outlet-chamber F, leading to the outlet-pipe G. Now when the valve H changes position, as hereinafter more fully described and as shown in Fig. 2, then the cylinder vD is connected by the port o' with the interior oi' the upper portion of the 1neasuringchamber B, while the lower end thereof is connected by the port l) and the lower end .of the cylinder D with the outlet-cham ber F.

The duplex piston-valve H is controlled from the diaphragm O, and for this purpose the following device lis provided: The upper end of the piston-rodI-IS carries two nuts H4 H5, between which engages one end of a lever K, fulcrumed on a bracket K', held in the chamber J. The inner end of the lever K is provided with a slot K2, engaged by a pin L', held on a lever L, fulcrumed on a bracket L2, likewise arranged in the chamber J. On this lever L is pivoted the upper section C4 of the telescoping diaphragm-rod C3, rigidly connected with the center piece C of the diaphragm, the upper section O4 being tted to slide in a stuiiing-box I', as shown in the drawings. Theextreme upper end of the section O4 is connected with a lever N, forming part of a registering device O, of any approved construction, and located in the chamber J. The free end L3 of the lever L is made pointed or spear-shaped, and the inclined sides thereof are adapted to engage a friction-roller P, held on an arm P', fulcrumed at P2 on the partition J The arm P is connected by a rod Q with a spring R, attached at its outer end to a post R', secured on the partition J The operation is as follows: When the several parts are in the position shown in Fig. l, then the fluid from the supply-pipe E passes through the cylinder D and port b into the ioo lower part of the measuring-chamber B to press on the diaphragm C and cause said diaphragm to rise and the members of its stem C3 to telescope. The gas in the upper part of the chalnber B passes into and through the port a and chamber F to the outlet-pipe G, leading to the service-pipes. \Vhen the diaphragm C moves into an uppermost position, then the sections of the telescoping stem C3 and the last member C"l of the said stem are pushed upward to cause the spear-shaped end L3 of the lever L to swing the arm P backward in the direction of the arrow ct', whereby a pull is exerted by the rod Q, on the spring R to increase the tension of the latter. When the point of the spear-shaped end L3 linally passes the friction-roller P, then the spring R, by pulling on the arm P', causes the latter to suddenly swing forward in the inverse direction of the arrow a', so that the friction-roller P in engaging the lower arm of the spear-shaped end of the lever L causes the latter to suddenly swing into the position shown in Fig. 2, whereby the free end of the lever K is caused to swing downward and the duplex valve H is drawn upward. As soon as the pistons H and H2 are thus shifted into the position shown in Fig. 2, then gas from the supply-pipe E can pass into the upper part of the measuring-chamber B to act onthe diaphragm C, so as to press the latter downward, thereby expelling the gas in the lower part of the measuring-chamber B through the port l) into the chamber F, from which it can iiow to the outlet-pipe G to thc service-pipes. The diaphragm C in moving downward draws out the members of the telcscoping stem C3, and when the members are drawn ont and the center piece C is nearing its lowermost position then the last member C4 is pulled downward to cause the spearshaped end L3 of the lever L to again swing the arm P rearwardly until iinally the point of the spear-shaped end passes the frictionroller P to permit the spring R to push the arm P back on the top arm of the spearshaped end LS. The arm P in thus acting on the lever L imparts a swinging motion to the latter to shift the lever K and the duplex .valve H back to the former position shown in Fig. 1. The above-described operation is then repeated. Now it will be seen that by the up-and-down movement of the stem C3 the lever N is set in motion to actuate the registering device O and indicate the amount oi' gas discharged from the chamber B, the size of the latter being in proper relation to the registering mechanism. It will be seen that this device is very simple and durable in construction, not liable to get out of order, and will work no matter in what .position the casing A is put.

Having thus fully described my invention, I claim as new and desire to secure by Letter Patent- A meter comprising a 1neasuring-chamber, a diaphragm secured therein, a valve for controlling the ini-low and outflow of the i'luid to and from said chamber, a telcscoping stem connected with said diaphragm, a lever pivotally connected with a member of the said telescoping stem7 and provided with a spearshaped end, a spring-pressed arm engaged by the spear-shaped end of the said lever, and a connection between said lever and the valverod of said valve, substantially as shown and described.

JOHN 1I. DIXON.

lVitnesses:

S. J. HATHAWAY, E. M. BOOTH.

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