US1105841A

US1105841A - James r

Info

Publication number: US1105841A
Authority: US
Publication date: 1914-08-04
Anticipated expiration: 1931-08-04

Description

J. R. RICKETTS & H. V. LBAHY.

GAS REGULATOR.

APPLICATION MLBD rBB.z5,1913.

1,105,841. Patented Aug.4, 1914.

m Q l2 Q3.. Q51 E provenient.

UNITED sTATEs PATENT oEErcE.

JAMES R. RICKETTS AND HERBERT V. LAHY, 0F LOS ANGELES, CALIFORNIA,

ASSIGNORS T0 PERFECTION GAS REGULATOR COMPANY, OF CALIFORNIA, A CORPORATION OF CALIFORNIA.

Los ANGELES,

' GAS-REGULATOR.

Specification of Letters Patent.

Patented Aug. 4, 1914.

vApplication tiled February 25, 1913. Serial No. 750,698.

T0 n?? Umm it muy concern VBe il', known that we, Janus R; RIcKET'rs and [laminar V. Lili-iur, both citizens of the United States, residing at Los Angeles, in the county of Los Angeles and State of California, have invented new and useful lmprovements in (as- Regulators, of which the following is a specilication.

'lhis invention relates to an improvement o\ er the gas regulator shown in a former application of James lt. Ricketts. tiled lAugust 14, 1912. Serial No. "(15,050, and the object of the present invention is to secure a more perfect seating of the valve so that when it is seated it will bear uniformly on the seat. In the former application referred to the valve is carried ,byI an oscillating arm, the valve being capable of universal movement with respect to the oscillating arm, but the center of movement of the valve is located at such a distance from the`valve facing that`the valve facing has a considerable lateral movement in swinging through the necessary are to effect a proper seat.

The main object of the present invention is to provide a construction making it possible to locate the center of movement of the valve head very close to the valve facing so that as the valve moves into proper seating position the degree of arc which 1t describes in coming into roper position is much less, andthe laterali) movementof the valve facing with respect to the seat is the minimum.

Referring'to the drawings: Figure 1 is a transverse vertical sectional view through the gas regulator constructed with the im Fig. 2 is a section on line wtf-w1', Fig. 1. Fig. 3 1s a plan view of the oscillating arm, regulating arm and parts carried thereby. Fig. 4 is a perspective of the valve presser. Fig. 5 is a perspective of the valve. Fig. 6 is a perspective of the valve supporting spring.

1 designates the regulator in general, to which gas is conducted through a gas main pipe 2, and from which gas is discharged through a `service pipe 3.

The invention relates to the valve mechanism controlling `the passage of gas from pipe 2 to pipe 3.

4 is an oscillating arm pivoted at 5", controlled by mechanism responsive to gas pressure, the particular construction of which is described in the former application.

(i is a regulating arm also supported at 5 and maintained in desired relation to the oscillating arm 4 by means of a regulating screw i S dtsignates a valve presser which is loosely pivoted at 9 to the regulating arm 6 in such a manner that the valve presser 8 is capable of some degree of universal movement with respect to the regulating arm 6. A leaf springlO is secured to the oscillating arm 4 and bears against the'lower rim of the valve presser| 8, causing the latter to bear upwardly on the outer end of regulating arm 6 and thereby hold the screw 7 against oscillating arm 4. The spring 10, as clearly shown in Fig. has a circular opening 11.

and projecting therethrough is a hollow valve head 12 which has a flange 13 which retains it on the Spring 10, and a valve facingr l-l of leather or other desired material fils the cupped portion of the valve head. 'llie valve presser 8 is recessed and a light coil spring 15 therein is interposed'between the valve presser and valve head, serving to yieldingly hold the valve head with its flange 13 against the spring 1() when the valve is open. as shown in Fig. 1. The valve presser 8 is also formed with a downwardly projecting convex boss 16 which is adapted to bear against the upper face of the valve head and act as "the abutment to press the valve downward and Ihold it a ainst its seat. The valve seat comprises a p ug 17 with, a gas passage 18 and having an annular ange 19 against which the valve facing is` adapted to be pressed when the valve is closed. When the inner end of the oscillating arm moves up it tilts the regulating arm 6 correspondingly and the latter moves downithe valve presser 8, the spring 10 also descending until the valve facing 14 rests against the flanged valve seat 1'9, at which time further downward movement of the valve is arrested. At this time contact of the valve with its seat is maintained yieldngly by the light spring 15, there being a slight clearance between the abutment 16 and the valve with the valve head immediately .when `the latter iirst touches its seat, which gives the valve head a chance toaccommodate itself to the seat, which movement is ett'ected by the light springl without damage to the valve facing. The' valve is thus preliminarily placed against its seat properly and a"slight` further downward movement of the valve presser 8 brings the abutment 1G to bear aga-inst the valve head and exerts pressure, forcing the valve facing 14 into tight engagement with the seat. The valve may still further adjust itself-during the application of pressure from kthe boss 16 andthe bearing point of the boss 16 is so close to the face of the valve that in such adjustment thevalve does/net have a tendency to rock laterally to any appreciable eXtent-.- The convex surface of the box' acts as-a fulcrum and presses against' the center of the valve so that .the valve can `find its natural seat.

Thevpurpose of the loose connection ofthe valve presser 8 with the regulating lever 6 i's to'enable the regulating lever 6 to be adjusted by screw' into various angular positions with respect tooscillating arm 4 with out distorting the position 'of the valve presser 8 with respect to the leaf spring 10. If the valve presser 8 lwere 'carried rigidly by the regulating "armI 6 when the latter was adjusted, it would swing the lower rim of valve presser 8 outof perfect 'Contact with the spring 10. j Weprefer to allow the slight space betweenthe boss 16 and valve head as, if the boss touched the valve head, it would exert such pressure upon the valve at (the initial seating of the valve that it vwould not so readily allow the valve to shift'in finding a perfect seat. l/Vith the slight clearance, however, the light spring"v l5 .holds the valve so lightly against the seat that the .valve can find its seat before pressure is exerted against it by the boss 16e What we claim is: l

1. In a 4gas regulator, a valve seat, an oscillating arm, a regulating arm adjustable withI respect to the oscillating arm, a valve presser carried bythe regulating arm, a valve head supported below` the valve presser, abutment means ,between the valve presser and valve head for pressing the valve head against the seat, there being a connection permitting universal movement between the valve presser and regulating arm, and there being another universal movement between the valve'head and said abutment.`

2. In a; gas regulator, an oscillating arm,I

a regulating arm adjustable with respect to theoscillating arm, a valve presser loosely carried by the regulating arm, a valve head, means yieldingly supporting the valve hea-d,

a valve seat against which the head is adapt'- ed to be pressed, and abutment means between the valve presser and valve for moving the valve against its seat.

3. In a gas regulator. an oscillating arm,

against the valve head to move the same against said seat, and` a coil spring between the valve presser and valve head.

4. In a gas regulator, a movable arm, a regulating arm adjustable with respect' to the movable arm, av valve presser loosely carriedby the regulating arm and being. recessed in its lower part and formed with a' convexvboss in the recess, a leaf spring secured to` the movable arm and bearing against the lower rim of the valve presser and having an opening, a valve head projecting through the opening in said spring and having a ange which rests upon said spring, a coil spring within the recessed portion of the valve presser between the valve presser andvalve head, and a valve seat below` the valve head.

5. In a gas regulator, a movable arm, a regulating arm adjustable with respect y thereto, a valve presser carried by the regulating arm, a valve seat, spring means supporting said valve above said seat, spring means between theV valve presser and valve head for exerting a pressure against the valve head, tending to move it toward its seat, and'abutment means between the valve presser and valve head, there being a slight clearance between the abutment means and valve head when the valve is opened.

6. In a gas regulator, a valve seat, a valve movable to and from said seat, pressure controlled means for operating said valve, means yieldingly holding said valve against said pressure controlled means, said pres sure controlled means having an abutment bearing against the back of said valve at a point in line with and close to the seat contacting surface of said valve, there being a universal movement between said abutment and the back of said valve, and there being a universal movement at another point` of.

said pressure controlled means.

7 In a gas regulator, a valve seat, a valve movable to and from said seat,pressure controlled means for operating said valve, said valve having a universal movement with respect lto said pressure controlled means, said pressure controlled means having an abutment for bearing against said valve yat a point close to the seat contacting surface of Suid vulve, and :l `light sp1-ing holding said vulve out of Contact' with Suid :ihutmcnt nuuus\\'lun the vii-ive is opened und acting tu vxert :i pi'eii'niinuiy pressure against the vulve when tht` vulve is closed before the abutment moans comes in Contact with the vulve.,

In testiniony whereof, we have hereunto