US1385513A - Controller for gas-burners - Google Patents

Description

F. W. WOLF.

CONTR'OLLERFOR GAS BURNERS. APPLICATION FILED SEPT. 10. 1920..

1,385,513. Patented July 26, 1921.

A? as v k? M M W -44. T 1 2.5 i ATTORNEYS.

M INVENTOR:

UNITED STATES PATENT OFFICE. v

FREDERICK W. WOLF, OF CHICAGO, ILLINOIS.

CONTROLLER FOR GAS-BURNERS.

Specification of Letters Patent. Patented J l 26' 1,921

Application filed September 10, 1920. Serial No. 409,352.

To all whom it may concern:

Be it known that I, FREDERICK lV. WVOLF,

' partly shut off when the cooking utensil is removed from the burner, there being associated with the: latter a valve actuating means which is controlled by the engagement therewith of the cooking utensil, said means operating to automatically turn on the fuel supply when the utensil 1s placed'on the burner, and to partly shut off the supply when the utensil i's removed.

The invention also has for its object to provide an automatic valve mechanism which enables the fuel supply to be com,

pletely shut off manually at will.

The invention consists in a comblnation and arrangement of parts to be hereinafter described and claimed, and in order that the same may be better understood, reference is had to the accompanying drawing formlng a part of this specification. I In the drawing,

Figure 1 is a side elevation of the appl1 I. Fig. 2 is an inverted plan vlewthereof; Fig. 3 is an enlarged vertical section on the line 3+3 of Fig. 2; r j

Fig. 4: is a viewsimilar to the preceding but'showing the parts in another position, and A a Fig. 5 is an enlarged crosssection on the line .55 of Fig. 1-.

Referring specifically to the drawlng, 10 denotes an annular gas burner, of conventional design having a supportlng 'plpe 11 into which discharges-the nozzle 12 of a valve casing 13 connected to the gas-supply manifold 14:.

' The valve'casing 13 ha's'a longitudinal gas passageway 15 which is in communicatmn at one end with the manifold 14: and-is continued through the-nozzle 12. Intersectin'g 2 this passageway transverse1y, is a chamber 16, the same being formed in the valve casing, and containing a valve in the form of a rotatable cylindrical plug 17 having a transverse port 18. \Vhen the valve 17 is turned to bring the port 18 in line with the passageway 15, the gas can flow from the manifold 14 to the nozzle 12 to be discharged by the latter-into the pipe 11 of the burner 10. The gas flow is shutoff by turning the valve 17 to bring its port 18 completely out of registry with the passageway 15.

The valve plug 17 is sl-idable lengthwise in the chamber 16 for a purpose to be presently described, and from its ends extend stems 19 and 20, respectively. The stem 19 extends to the outside of the casing 13 and its outer end is fitted with a handle 21 wherebythe valve plug 17 may berotated to turn the gas supply on or off as hereinbefore de scribed. The valve casing 13 is fitted with a stuiling box 22 through which the valve stem 19 passes.

The stem 20 also passes outv of the valve casing 13 through a stuffing box 23 fitted thereto, and itsiprojecting end passes'loosely through a slot 24 in one end of a lever 25 extending beneath the pipe 11 and having at the .center of the burner 10 an upstanding stem 26 passing through the latter and having at the top a cap 27 which is normally positioned a short distance above the planeof the burner top. The pipe 11 has a bracket arm or lug 28 to which the lever 25 is pivoted intermediate its ends as shown at 29. To the lever 25 is fastened a leaf spring 30 which bears at its free end against the lug 28 and serves to hold the lever in such a position that the cap 27 is normally above the plane of the top of the burner 10.

On opposite sides of the lever 25 the stem 20 is fitted with abutments 31 and 32 between whichthe lever end is free to swing. These abutments are nuts, and between the abutment 31 and the outer end of the stuffing'box 23 is located a spring 33, the same being coiled around the stem 20.

There is sufiicient space betweenthe inner ends of the stufiing boxes 22 and 23 to permit the valve plug 17 to slide therein as hereinbefore described.

The abutments 31 and 32 will be so adjusted relative to the lever 25 that when the cap 27 is in its normal elevated position (it being so held by spring '30) the lever is out of engagement with the abutment .31, and

the spring 33 is holding the valve plug 17,

drawn down such a distance that its port 18 is only partly registering with the gas passageway 15, with the result that the gas supply is partly shut off. If av cooking utensil or other article is'now placed on the burner 10, it engages the cap 27 and forces the same down, resulting in the rear end of the lever 25 swinging upwardly to engage the abutment 31, whereby the valve plug 17 is slid upwardly to bring its port 18 into complete registry with the gas passageway 15, so that a full flow of gas to the burner 10 is now had. When the cooking vessel or other article isremoved from the burner and the cap 27 the lattereis free to rise and the lever 25 is restored to its normal position by the spring 30. The rear end of the lever now moves away from the abutment 31, whereupon the spring 33 draws the valve plug 17 down to bring its port 18 into the position where it only partly registers with the passageway 15, and hence the gas is now partly shut o .7 e 7 p The operation hereinbefore described results in a considerable saving of gas as the latter is not turned onvfull except when the burner is actually in use. At all other times 7 the gas is partly shut 013:, only enough as being admitted to the burner as will su cc to keep the same lighted. The extent to which the gas is to be partly shut is readily regulated by the abutment 31 and the stufling boxes or bushings 22 and 23. In full open position the valve plug 17' bears against the inner end of thebushing 22, and in partly open position it bears against the inner end of the bushing 23. The abutment 32 limits the movementof the lever 25 in the direction it swings to elevate the capv27.

The gas supply can be, completely shut off by turning th plug 17 in the usual man ner by means of the handle 21 until its port 18 is out of registry with the gas passageway 15, and this can be done when the plug is in either the full or the partly registering positions hereinbefore described.

I claim: 7

1. The combination with a burner; of a fuel controlling valve therefor comprising a associated with the burner and having an operative connection with the valve for effecting the aforesaid sliding movement thereof, and means for controlling the extent of such slidin movement of the valve.

2. The combination with a burner; of a fuel controlled valve therefor comprising casing having a fuel passageway and a chamber intersecting the same, a ported valve in the chamber, said valve being rotatable to bring its port into and out of registry with the fuel passageway, and also slidable in the chamber to obtain a complete and a part registry of its port with the fuel passageway, stops in the chamber on opposite ends of the valve for limiting the sliding movement thereof, and an article-controlled means associated with the burner and having an operative connection with the valve for effecting the aforesaid sliding movement thereof. 7

3. The combination with a burner; of a fuel-controlling valve therefor comprising a casing having a fuel passageway and a chamber intersecting the same, a ported valve in the chamber, said valve being rotatable to bring its port into and out of registry with the fuel passageway, and also slidable in the chamber to obtain a complete and a part registry of its port with the fuel passageway, a stem extending from the valve I fuel controlling valve therefor comprising a casing having a fuel passageway and a chamber intersecting the same, a ported valve in the chamber, said valve being rotatable to bring itsport into and, out of registry with the fuel passageway, and also slidable in the chamber to obtain a complete and a part registry of its port with V the fuel passageway, means for controlling the extent of the slidingmovement of the valve, a stem-extending from the valve, an article-controlled lever associated with the burner, said lever having an aperture through which the valve stem loosely passes, an abutment on the valve stem engageable by the lever, and a spring bearing against the abutment for sliding the valve in one direction.

5. The combination with a burner; of fuel-controlling valve therefor comprising a casing having a fuel passageway and a chamber intersecting the same, a ported valve in the chamber, said valve being rotatable to bring its port into and out of registry with the'fuel passageway, and also slidable in the chamber to obtain a complete and a part registry of its port with the fuel passageway,astem extending from the valve, an article-controlled lever associated with the burner, said lever having .an aperture through which thevalve stem loosely passes, an abutment on the valve stem engageable by the lever, a spring bearing against the abutment for sliding the valve in one direction,

ends of the valve for limiting the sliding movement thereof.

6. The combination with a burner; of a fuel-controlling valve therefor comprising a casing having a fuel passageway and a chamber intersecting the same, a ported valve in the chamber, said valve being rotatable to bring its port into and out of registry with the fuel passageway, and also slidable in the chamber to obtain a complete or a part registry of its port With the fuel passageway, means for controlling the extent of the sliding movement of the valve, a stem extending from the valve, an article-eontrolled lever associated with the burner, said lever having an aperture through Which the valve stem loosely passes, abutments on the valve stem on opposite sides of the lever, and a spring bearing against one of the abutments for sliding the valve in one direotion.

In testimony whereof I aflix my signature.

FREDERICK W. WOLF.

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