US787577A - Water-meter. - Google Patents

Description

PATENTED APR. 18, 1905.

P. LAMBERT.

WATER METER.

APPLICATION FILED MAY 10, 1902.

QSHEETS-SHEET 1.

Y ZeJifv N0- 787,577. I PATENTED APR. 18, 1905.

' P. LAMBERT. v I

WATER METER. APPLICATION FILED MAY 10, 1902.

2 BHEBTSSHEBT 2.

5o fication.

UNITED STATES Patented April 18, 1905.

FRANK LAMBERT, OF BROOKLYN, NEW YORK.

WATER-METER.

' SPECIFICATION forming part of Letters Patent No. 787,577, dated April 18, 1905.

Application filed May 10, 1902. Serial No. 106,730.

To all whmn it may concern:

Be it known that I, FRANK LAMBERT, a citizen of the United States, and a resident of New York city, borough of Brooklyn, Kings county, State of New York, have invented Improvements in Water-Meters, of which the following is a specification.

My invention relates to disk water-meters, and more particularly to the manner of holding the various internal parts of the meter together, so as to prevent abnormal internal strain.

It is well known that one of the greatest objections to disk water-meters is the breakage of the disk-piston. Metal pistons have been tried, but on account of their weight, wear, and other disadvantages are not satisfactory. Vulcanite or hard-rubber pistons are generally used, but on account of the necessary limited thickness of disk pistons they are liable to breakage either from obstructions entering the disk-chamber or from sudden excess of pressure due to Water-hammer.

By making the sections of the diskchamher free to move apart the piston will not be put to abnormal strain when there is an obstruction or excess of pressure that would otherwise tend to break the piston. In meters such as shown it has always been considered necessary to havethe sections of the disk-chamber firmly secured together. By experiment I have found that this is not necessary and that the sections may be held in face contact by gravity.

My invention also embraces several other features of improvement, as will be hereinafter explained. I

In the accompanying drawings I have shown one form of water-meter to illustrate the principles of my invention; but it is to be understood that I do not limit myself to this form nor to any particular construction for carrying myinvention into effect.

Figure 1 is a central sectional elevation of one form of a meter embodying my improvements, the top of the meter being shown in full. Fig. 2 is a sectional plan taken on line 2 2 of Fig. 1. Fig. 3 is a sectional view of a portion of the meter, showinga slight modi- -Fig. 4 is a diagrammatic plan view illustrating the connection Referring to Figs. 1 and 2, the external casing 1 is open at one end to admit the internal parts of the meter. The disk measuringchamber is formed of sections 2 and 3, section 3 only being fitted in the bore of the casmg 1.

Section 2 of the measuringechamber is freely fitted to and registered axially with section-3 by cooperating shoulder and recess connection.

Water entering the meter at the inlet 4, Fig. 2, flows freely into the upper part of the casing above section 2, as well as into the inlet of the measuring-chamber, so that the water-pressure is greater above section 2 of the measurin -chamber than within, and this section will be kept in face contact with section 3 by gravity and the excess or difference of pressure. It will thus be evident that with undue pressure from any cause within the disk-chamber section 2 may be forced upward against gravity and relieve strain on the disk piston 37.

Preferably I mount the frame 5, carrying the controlling-hub 5 and the internal reducing-gear train, upon section 2 to add to its weight and help gravity make goodthe face contact between the sections.

Section 3 of the measuring-chamber closes the opening in the casing, and a water-tight joint may be made by interposing a packing or gasket 6 between a shoulder 7 on the casing and a flange 8 on section 3. Any suitable means for holding section 3 firmly in normal position and the joints 6 7 8 watertight may be adopted. As shown, such means may consist of a leaf-spring 9, secured to the casing 1 by bolts 10 and pressing against the lower section 3 of the meas-. uring-chamber. This spring 9 normally tends to push section 3 of the measuringchamber into its seat in the casing 1 with sufficient force to resist the normal internal pressure of the meter, but to yield under a pressure greater than normal but less than that necessary to deform the meter, in which case one or more of the internal parts may be forced out of the casing or out of normal position, and thus relieve or reduce the internal pressure in case of water-hammer or in case of freezing of the water in the meter.

Preferably I mount the sections of the diskchamber loosely together to prevent them getting too far apart, as might ha pen in the shipment of the meters, or whol y apart if forced out of the casing. As shown, shouldered screws 11, passing freely through holes in the flange 12 of section 2, are threaded into flange 13 of section 3, the body of the screws above the threaded portion being sufficiently long to allow section 2 to rise above section 3 a certain distance. This distance may be predetermined to always keep the axial registration between the sections by means of the shoulder and recess connections.

Also, as shown in the detail view, Fig. 3,

coiled springs 14 may be placed between the heads of the screws 11 and the top of the flange 12 of section 2 to help gravity to return promptly the sections to normal relative positions. These springs 14 need not be under tension when the sections are in normal position, but only adapted to exert a force after the upper section 2 has been lifted some distance from section 3. The screws 11 also act to prevent the rotation of section 2 independently of section 3.

Still referring to Fig. 1, section 3, and consequently the whole of the measuringchamber, is prevented from rotation in the casing 1 by suitable means, such as a pin 15, projecting from section 3 into a slot 16 in the casing 1. The measuring-chamber sections and gear-train may be inserted into or taken out of the casing all together, and as long as the pin 15 is engaged in the slot 16 all these internal parts will be maintained in their normal radial positions and be prevented .from rotation in whatever position up or.

down that they may occupy in the casing.

It will be evident that the sections of the measuring-chamber may be forced out of normal position independently of each other, as well as that the whole measuring-chamber and parts that may be attached thereto may be forced out of normal position all together that is, the upper section may rise while the lower one remains seated, or the lower one may be forced downward away from the upper section, or all the parts may be forced out of the casing together.

The diagrammatic view, Fig. 4, illustrates the connecting-gearing between the pinion .40, Fig. 1, and gear-wheel 35 in the construction which Fig. 1 shows. The pinion 40 actuates Wheel 41 and the pinion 42, fast with the wheel 41, actuates the gear-wheel 43. The pinion 44, fast with wheel 43, actuates the gear-wheel 45, and the pinion 46, fast with the wheel 45, actuates the gear-wheel 35.

I do not limit myself to any particular means shown for carrying out my invention nor to any combination of the various features described.

I claim as my invention 1. In a water-meter, a pressure-casin mounted therein a measuring-chamber ma e in sections each free to be forced independently of the other out of normal position under undue pressure, without damage to the meter, only one of said sections when in normal position fitting said pressure-casing.

of normal position, without damage to the meter.

4. In a water-meter, a pressure-casing, mounted therein a measuring chamber formed of sections, a train of ears resting on one of said sections, the said sections being held in face contact with each other by gravity only.

5. In a water-meter, a pressure-casing, mounted therein a measuring-chamber the sections of which are capable of being independently forced out of normal position, and means for preventing the rotation of said measuring-chamber when in normal position or in any other position in the pressure-casing to which it may be forced by undue pressure.

6. In a water-meter, a pressure-casing, mounted therein a measuring chamber formed of sections each capable of being forced independently of the other out of normal position by undue internal pressure, without damage to the meter, and means to prevent said sections from getting wholly separated when forced out of normal position.

7. In a water-meter, a pressure-casing, mounted therein a measuringchamber formed of sections axially registered together, each adapted to be forced independently of the other out of normal position by undue internal pressure, Without damage to the meter, and means for keeping said registration between the said sections in all positions of the said measuring-chamber in said casing.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

FRANK LAMBERT.

Witnesses:

EDITH J. GRIswoLD, .MABELLE F. LAKE.

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