US548586A

US548586A - Water-meter

Info

Publication number: US548586A
Authority: US
Publication date: 1895-10-22
Anticipated expiration: 1912-10-22

Description

2 Sheets-Sheet 1.

(No Model.)

L. H. NASH.

WATER METER. No. 548,586.

Patented Oct. 22, 1895.

ANDREW EGRANAMJNOTOWQWASHINETUN.DC.

-(No Model.) 2 Sheets-Sheet 2.

' L. H. NASH. WATER METER.

No. 548,586. Patented Oct. 22, 1895.

WITNESSES:

ANDREW BJERAMM.PNOTO-UTKD.WA$NINGTUNJL' UNITED STATES PATENT Orrics.

WATER-M ETER.

SPECIFICATION forming part of Letters Patent No.

548,586, dated October 22, 1895.

Application filed December 6, 1893. Serial No. 492,906- (No model.)

To all whom it may concern.-

Be it known that I, Lnwrs HALLOCK lines, a citizen of the United States, residing at South Norwalk, in the county of Fairfield and State of Connecticut, have invented certain new and useful Improvements in Water Meters, of which the following is a specification.

My present invention relates to nutatingpiston water-meter; and it consists of certain novel parts and combination of parts particularly pointed out in the claims concluding this specification.

Referring to the accompanying drawings, Figure 1 is a vertical section on the line '1 1, Fig. 2,through a meter embodying my present invention. Fig. 2 is a top view of the measuring-chamber, the upper head-plate of the case being removed. Fig. 3 is an elevation of the piston, viewed from the side; and Fig. 4 is an elevation of the measuring-chamber.

The following is a description of the structure shown in the drawings.

A is the inlet-spud, and B the outlet-spud.

G is the upper head-plate of the case, and D the lower head-plate.

E E is the measuringchamber, divided by two partitions H and H into three separate chambers. The piston is provided with a flat disk J and two conical disks J and J". The disk J operates in the intermediate chamber F, the disk J in the upper chamber F, and the disk J" in the lower measuring-chamber F".

K,K, and K are diaphragms for the chambers F, F, and F", respectively. In this case these diaphragms are made of one piece, and are therefore all arranged on the same side of the several chambers, although in some aspects of my invention it is not necessary that they should be so arranged. All three of the pistons are split in the ordinary way to straddle their respective diaphragms, as shown in Fig. 3.

L, L, and L are all inlet-ports.

M, M, and M,,Fig. 4, are the outlet-ports.

T is a pin projecting from the piston, making connection with the spindle of the registering mechanism. The partitions H and H are preferably cut away in the region of the abutment, forming slots Q Q, Fig. 2, by means of which the chambers F, F, and F communicate to equalize pressures.

The ball-bearing is inade of four parts R R and S S, between which parts the disks are secured.

The operation is as follows: Water is admitted through the spud A by inlet-passages L, L, and L" into the three chambers or sections of the measuring-chambers, and being metered passes out through the outlet-ports M, M, and M to the spud B.

In an application filed by me on even date herewith, bearing Serial N 0. 492,905, I have shown a nutating-piston meter provided with two disks operating in corresponding measuring-chambers.

Concerning the structure shown and described here, it may be, among other things, remarked that a given displacing action is obtained with a piston having more than two disks with less angular motion than with a piston having only two disks, irrespective of other features of construction. By arranging all the diaphragms on the same side and by establishing communication between the several chambers I obtain a freer inlet and outlet for the water and provide means for equalizing the pressures in all the chambers. This latter feature is not, however, dependent upon the presence of three chambers, but is equally applicable to a meter in which there are only two chambers, such as the meters described in my said application.

Referring to Fig. 3, it will be seen that the slots in the disks J and J' are much broader than is the slot in the disk J. The broad slots in the disks J and J 2 establish communication between the chambers on opposite sides of these pistons and functional parts, while the narrow slot in the piston J furnishes a guide-bearing for the piston on the sides of the diaphragm to prevent rotation. Considering a piston so formed in connection with the case shown in Fig. 1 of the drawings, in which the several chambers are in direct communication in the region of their diaphragms, it will be seen that communication between all the chambers is established, by reason whereof the pressures present in each are still further equalized.

In the foregoin g specification 1 have referred to some of the modifications which might be employed in practicing my invention, but I have not endeavored to specify all the modifications which might be employed in the practice of my invention, the object of this specification being to instruct persons skilled in the art to which my invention relates to make and use the same in the form at present preferred by me; and it will be understood that mention by me of some modifications is not in any way intended to exclude others not referred to, but which are within the spirit and scope of my invention.

In the claims the omission of an element or the omission of reference to the detailed features of the elements mentioned is intended to be a formal declaration of thefact that the omitted elements or features are not essential to the inventions therein severally covered.

I claim 1. In a nutating piston water meter,- the combination of a piston provided with a plurality of disks, conical and fiat, and a plurality of chambers in which said disks operate.

2. In a nutating piston water meter, the combination of a piston provided with a Hat disk and with a plurality of conicaldisks of a plurality of chambersin which said disks operate 3. In a nutating piston water meter, the combination with a piston having a plurality of disks and a measuring chamber composed of a plurality of separate chambers communieating with each other.

4. In a nutating piston water meter, the combination with a piston having a plurality of disks and a measuring chamber composed of a plurality of separate chambers, of diaphragins for the several chambers arranged on one side thereof, said chambers communicating with each other.

5. In a nutating piston water meter, the combination with a piston having a plurality of disks one of which constitutes a guide-bearing on the diaphragm and another of which is provided with a port in the region of the diaphragm.

6. In a mutating piston water meter, the combination of a plurality of disks and a measuring chamber,composed of a plurality of separate chambers in communication with each other-by an opening or openings between said chambers and through the piston.

LEWIS I-IALLOCK NASH.

W'it-nesses:

M. WILsoN, J. EDGAR BULL.