US1306218A - dickey - Google Patents

Description

E. s. DICKEY.

GAS METER.

APPLICATKON FILED MAR- 20. BIB.

' Patented June 10, 1919 3 SHEETS-SHEET I.

E. S. DICKEY.

GAS METER.

APmcAnoN FILED mmzo. new.

1 ,3Q 6,2-18. Patented June 10,1919.

3 SHEETSSHEET 2.

Q Vunm E. s. DICKEY.

GAS METER.

APPLICATION FILED MAR. 20. mm.

1,306,218. Patented June 10, 1919.

3 SHEETS-SHEET 3.

I mm ii rinrrnn srarns Parana onnrcn.

EDMUND S. DICKEY, OF BALTIMORE COUNTY, MARYLAND, ASSIGNOR TO AMERICAN METER COMPANY, INC., 0]? NEW YORK, N. Y., A CORPORATION OF DELAWARE.

To all whom it may concern: a

Be it known that I, EDMUND S; DICKEY, a citizen of the United States, residing in the county of Baltimore and State of Maryland, have invented certain new and useful I1nprovements in Gas Meters, of which the following is a specification.

. This invention relates toimprovements in l dry type gas meters, and more particularly to valves for such meters. V

Heretofore, as far asI am aware, valves for gas meters of thetwo valve type have been made in a single piece, and in order to get increased capacity in the'meter, the

size of the valve has been increased, with the obvious purpose of securing the greatest possible valve area for the quick intake and discharge of gas, in order'to pass additional quantities of gas in a given time. a This tendency to increase the size of the valves for the purpose indicated, has reached a point where further increase in size becomes prac tically prohibitive for various reasons in connection with the present formof valve construction. 1 s

One of the objects, therefore, of this invention, is to provide four valves instead of two, but to so construct and arrange the valves that they will work as two valve units, which is accomplished by forming the valves In, separate or lndlvidual sectlons,

yoked together, the two sections of each valve operating as one pair or as a single unlt. By this arrangement, greatly 1ncreased valve area 1s obtalned, permitting quick intakeand discharge of gas, and the consequent increase in the capacity of the meter. With the two double or yoked valves for each meter, instead of two single valves for each meter, I can, by the employment of suitable channels, leading from the valve seats to the meter diaphragms and casing, adapt the valves for use with meters having two diaphragms, or to a meter with four diaphragms without changing the valves and valve seats themselves.

In adapting the two yoked valves to a twodiaphragrn meter, of the ordinary type, in which there is a central partition in the meter casing, dividing it into two separate compartments, one yoked valve will be mounted on the valve table on one side of the meter partition, to serve one diaphragm and its compartment, and the other valve GAS-METER.

Specification ot Letters Patent. Patented J 11119 10, 1919,

Application filed March 20, 1918, Serial No. 223,576.

at 90? for reciprocal actionin coordination with the two diaphragms that they control, and for the purpose of preventing dead center. In my improvements, the yoked valves or two pairs of single valves are also set at 90 0n the valve table for the same purpose, and reasons, but I am, by reason of the construction of the valves and valve seats, enabled to control through a single valve arm, a valve of double the size of the present meter-valve, and accordingly obtain double the valve area without increase in valve stroke, or increase in the length of travel of the valve upon its seat.

Another object of the invention is to provide a valve having large valve area for the quick intake and discharge of gas, without great increase in the size of individual valve castings, which is an important consideration in valve construction, particularly with large meter valves, in which there is a tendency of the valves to warp or otherwise become distorted causing leakage and consequent inaccuracy in measurement, as well as increased friction and therefore, increased meter resistance in operation.

A still further object of the invention is to provide a novel means forguiding the valves in their reciprocating or sliding movement, in whichfriction is reduced to a minimum, and to provide a construction in which the valve guiding means will be self-cleanvalve housing'broken away, to show the valves and valve operating shaft and guides.

Fig. 2 is an enlarged cross section, of'one of the valves, taken on line arr-b ofa valve shown in Fig. 1.

Fig. 3 is a cross section on line, cd through one of the valve sections of one of the valves shown in Fig. 1.

Fig. 4 is a top plan view of aportionof the valve table, showing the relative location ofthe valve seats, of one valve, and

Fig. 5 is a perspective view of one of the valves, with a portion of one of the guides in juxtaposition thereto.

Referring to the drawings, the numeral 1 designates the meter casing, 2 the front; 3'

the rear, and -the sides of the casing. The

numeral 5' designates the intake and 6, the

outlet, it being understood that the meter casing is, or may be of ordinary construetion. 7

The numeral '7-designates the valve housin'g, provided with reach 8, leading to the intake. The valve table 9is the usual table employedin dry type'gas meters, ofordi nary construction, andbelow the table are arranged outlet channels 10, and suitable diaphragm channels 11, but sincethe inven tion heredoes not reside in the arrangement of the diaphragm and easing channels, which is more particularly the subject matter of certain companion applications, they need'not be further describedin-detail, and are shown only to bring out'more clearlythe between the side rails 17, end'pieces l8 and intermediate cross pieces 19, all havingtheir upper surfaces in-the same plane, for bearing and sealingpurposes. The valve seats are braced centrally by b1'aces'20' and 21; cast integral with the seats, the braces'20 inclining from the bottom towarclfthetop, while the braces 21 incline downwardly.

.These braces are below the bearing surfaces of the valve'seats, to do away'w1th-unneces-- sary friction betweenthe valve and the seats; The valve comprises two sections 22, identical in construction, which areyoked together by parallel yokebars 23, having in-' turned ends 24, fittinginsockets or recesses 25 in opposite'sides' of the dome portion 26 of-the sections, in which sockets the inturned ends are soldered or otherwise firmly held; Each seotion'is providedwith front andirear flanges 27 smoothly finished on the underside for accurate and close fit upon the'valve seats.

The numeral 28 designates two. guides of angular construction, which are soldered or otherwise'fastened' to the valve table, one on each side of the valve seat. The horizontal upper portions of the guides overhangthe seats, so as not to interfere with the proper" grinding of the valve seats. The outer edges of-' that part ofthe guide brackets that underlies the guides are'serrated', as indicated at 30', for reducing friction between these parts, and presents a formation which makes the valve guides self cleaning.

In meters of ordinary construction, the valve wrist pin is usuallylocated at the center of the valve, but in the present construction, Imount this wrist pin 31, upon a soparate wrist wire-32,.Which issoldered or otherwisefastened to the two yoke bars of the valve, as. best shown inFigs. 1 and 5; thus makingthe wristwires serve as-arein-' forcement'betweenthe front and rear yoke bars, the wrist wire lbeing centrally locatedbetween the valve sections and extending be' yond the front of the-valve, and atright an gles to the yoke bars. I

The numeral 33 indicates the valve arms, there being twoin' number, one'=connected with the control'pin of'one of the valves, and the other connected with the: control pin of the other valve, both arms being mounted upon the single crank 34 -ofthe valve operating shaft 35 which shaft is given rotarymovement l through suitable or usual diaphragm and" flagstaff connections- By the described arrangement and construction shown, I am able to obtain-double the single valve area or capacity, and'still retain simplicity-of construction, by reason of forming the valve in two sections yoked together to operate as a single valve, with a single valve wristfpin and single valve arm, or in other words, I operate two valves in a single meter, with the capacity'of four valves fronr a valve operating shaft, having a single crankiand'two valve operating arms, instead a of two single valves, as heretofore, which obviously eliminates-thenecessity of dupli cation of valve wristtpins and valve arms, and the employment of double ortriple" crank valve operating shafts to. control multi-valvemovement. I 7

Having thusfully described 'my' inven tion,.whatI claimisz 1.111 agas meter, in combination, a slide valve for controllingthe flovv of gas into and out of the meter diaphragm and casing,

formedof a plurality of independent/sec tions yoked together for simultaneous movement.

2. In a gas meter in combination, a plurality of separated valve seats having ports therethrough for the passage of gas to and from the diaphragm and meter cas ing, a slide valve formed of a plurality of separate sections yoked together, a section for each valve seat. 1

3. In a gas meter, in combination, a slide valve for controlling the flow of gas to and from the diaphragms and meter casing, said valve comprising two separate sections yoked together for simultaneous movement.

4. In a gas meter, in combination, four valve seats arranged in ,pairs, two valves for controlling the flow of gas to and from the meter diaphragms and casing, said valves each being formed in two separate sections, one section for each valve seat, the sections of each valve being yoked together for simultaneous movement.

5. In a gas meter, in combination, a valve operating shaft, two valves for controlling the flow of gas to and from the meter diaphragms .and easing, each valve being formed in two sections, yoked together forsimultaneous movement, and a valve arm for each valve and connected with the operating shaft.

6. In a gas meter, in combination, a valve 7 operating shaft having a single crank, two

valves for controllin the flow of gas to and from the meter diap ragms and easing, said valves being formed in separate sections yoked together'for simultaneous movement, and a connection between the crank of the operating shaft and each of the valves.

7 In a gas meter, in combination, a slide valve for controlling the flow of gas into and out of the diaphragm, and meter casing,

Copies of this patent may be obtained for formed of a plurality of separate sections yoked together for simultaneous movement, a valve operating shaft, and connections between the valve and the operating shaft, at a point intermediate of the valve sections.

8. In a gas meter, in combination, a slide valve for controlling the flow of gas to and from the meter diaphragm and casing, and formed of two separate sections, yoke bars connecting the sections for simultaneous movement, a wrist wire secured to the yoke bars between the valve sections and having means for connection with a valve operating shaft.

9. In a gas meter, in combination, a suitable casing, having a valve table therein, a valve seat on said table, guide bars secured to the table adjacent opposite sides of the valve seat, and provided with horizontal angle portions, a valve on said seat, provided with a portion underlying the angle portions of the guide bars, said underlying portion being provided with serrated outer edges for the purpose set forth.

10. In a gas meter, in combination, a valve seat, a valve table, guide bars located parallel to the sides of the seat and separated therefrom, and mounted on the valve table, and

formed with angle portions, a valve having a portion underlying the angle portions of the guides, the outer edges of the said underlying portion of the valve being serrated for the purpose set forth.

In testimony whereof I aifix my signature in presence of two witnesses.

EDMUND S. DICKEY.

Witnesses:

FRANK. G. BRERETON, TITIAN W. J OHNSON.

five cents each, by addressing the Commissioner of Patents, Washington, D. C.

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