US1841218A - Thermostatic arrangement for gas ranges - Google Patents

Description

Jan. 12, 1932.

2 Sheets-Sheet 1 Filed Aug. 22, 1929 WNW...

Jan. 1932- A. STOCKSTROM ET AL 8 THERMOSTATIC ARRANGEMENT FOR GASv RANGES Filed Aug. 22, 1929 2 Sheets-Sheet 2 mwntozs Patented Jan. 12, 1232 UNITED STATES PATENT OFFICE ARTHUR STOCKSTROM AND ALMER H. BRODIBEGK, OF ST. LOUIS, MISSGURI, ASSIGNQRS TO AMERICAN STOVE COMPANY, OF ST. LOUIS, MISSOURI, A CORPORATION OF NEW JERSEY THERMOSTATIC ARRANGEMENT FOR GAS RANGES Application filed August 22, 1929. Serial No. 887,729.

This invention relates to improvements in thermostatic arrangement for gas ranges and the primary ob ect of this improvement is to so construct a range that the thermostat is concealed whereby a structure is produced so'that when not in use there is little evidence that it is a range.

A further object of the invention is the production of a gas range so constructed that when it is not in use the burner top 1s completely concealed and also the thermostatic partment and a burner top extending over v the said ovens and compartment and providing means for concealing the burner top and also the thermostatic compartment, whereby a range is produced that conceals all of its mechanism when not in use.

A further object of the present improvement is to construct; a range in the manner above described and provide avertical narrow compartment for the thermostat and at the same time enable the thermostatic mechanism and the thermostat itself to be disconnected from the manifolds and when disconnected by swinging the thermostatic mechanism and the thermostat the complete mechanism and thermostat can be, removed through the narrow vertical compartment from the range for repairing, and whereby the thermostatic mechanism and the thermostatic member can be applied to the range throughthe same opening.

.Further objects of the invention will appea frointh'e following description.

J In; the drawings ;-1

3' 'fFigiirel is a perspective view of our improved range, a part of the range being broken away.

Figure 2 is a perspective view of our improved range, the concealing cover being raised for operation and the outer wall of the thermostatic compartment broken away.

Figure 3 is a detached perspective vertical sectional view taken through the outer wall of the thermostatic compartment.

Figure 4 is a detached view showing the arrangement 'of the gas manifold and the manner of connecting the valve housings with the said manifold.

Our improved range comprises a baln'ng oven 1 and below it a broiling oven 2 which may be of the ordinary construction and one feature of the present improvement is the provision of a thermostatic compartment 3 which contains the thermostatic housing 4 that has connected with it-a thermostatic member 5 that extends into the upper front portion of the baking oven 1. The thermostatic housing 4 contains the usual or other thermostatic mechanism (not shown) that is adapted to be operated by the expansion and contraction of the thermostatic member 5. This thermostatic housing includes the usual valve for controlling the flow of gas through the housing that is controlled by the thermostatic member, the regulating wheel and intervening mechanism well known to those skilled in this art, and not shown herein.

The thermostatic housing 4 carries a regulatthermostatic housing to be removed from the range for the purpose of repairing. Inthe construction shown this outer wall or Iplate 7 is provided with means for remova 1y attaching it in place. The means here shown consists in providing one end (the lower end) lip 9 be bent to cooperate with its edge.

8 with an inwardly and downwardly extending lip 9 which is made essentially L-shaped and this lip or lips pass through a vertical opening 10 that is formed in the lower edge 11 of the surrounding wall 12 of the range. In this construction as here shown, this lower edge is bent preferably in the manner shown though it may be bent in other forms, and Tthe e upper portion of the wall 7 is provided with a handle 13 that passes throtwh the said wall and has attached to it a latch 14, the lip 15 of the latch adapted to turn into an opening 16 of the inwardly L-shaped bent upper wall 17 of the said surrounding portion 12. By

means of this construction the said wall 7 can be fastened in position or detached by operating the handle 13 to either cause its latch 15 to engage with the wall 17 or to be disengaged therefrom.

The thermostat, as is well understood by those skilled in the art, is to control the flow of gas to the burner 18' that provides heat for the oven 1 and the broiler 2. Gas for this burner therefore passes through the housing 4 to the burner 18 and inpassing through the housing it is controlled by the mechanism in the housing as is also well understood by those skilled in this art. The gas is conveyed from the housing through a pipe 19 the lower end 20 of which passes to the burner 18 through a mixing chamber 21 which contains the usual air regulating shutter 22. Gas flows to the upper portion of the housing 4 through a pipe 23 that has one end connected with the housing 4 and its opposite end 24 connected with the manifold 25 located below the top plate 26. For the purpose of controlling the flow of gas from the manifold 25 to the pipe 23 its upper end 24 is made in the form of a valve housing that contains a valve (not shown) that is operated by a handle 27. The object of the valve control by the handle 27 is to cut off the gas flowing to the thermostat from the manifold 25 or to permit gas to flow from the manifold 25 to the housing 4, and as previously stated herein, then-the amount of gas flowing to the pipe 19 is controlled by the thermostat and this in turn is controlled by the amount of heat within the oven 1. The adjustable wheel 6 before described, is set to feed sulficient gas to maintain the oven 1 at a predetermined heat, all of which is also well understood to those skilled in this art, and further description is unnecessary in this application.

The manifold 25 as stated, extends under the top plate 26 and its rear end 28 passes to the ordinary source .which is not here shown. The plurality of handles 29 located under the top plate 26 control the gas that flows to the burners (not shown) under the top plate, which does not need further description in this application. The top plate 26 has its front edge 30 extending over the handles 29 and the top plate curves downwardly and outwardly at opposite ends as at 31 and lays above the upper portion of the oven 1. The ordinary drip pan 32 is located under the burner mechanism that has been referred to.

I11 connection with this top 26 we provide a cover 33 that has its lower edge connected with the top plate in any desired manner so that the cover can swing upward in the position shown in Figure 2 or swing downward into the position shown in Figure 1, whereby the top plate and its burners and mechanism can be concealed when not in use and can be made accessible by raising the top when they are being used. We have'not shown any particular manner of attaching this cover to the top plate in order to enable it to be operated as described since that may be varied without departing from the scope of the invention which it is the object of this application to protect. Also the outer or upper edge 33 of the flanges 34 are provided with extensions 35 and the end wall 36 of this cover is made wider than the flanges 34, and the extensions 35 are curved as shown for the purpose of fitting the curved portions 31 of the top plate, whereby allof the mechanism of the range is concealed.

It will be understood that the thermostatic inner wall is provided its upper edge is below the thermostatic member 5 whereby the housing 4 and the thermostatic member can be applied to the range or can be detached from the range. Of course it will be also understood that the ends of the pipes 19 and 23 which are connected with the housing 4 will have any form of nipples (not shown) for detachably connecting the pipes with the housing 4.

For the purpose of enabling the regulating wheel 6 to be operable from the outside of the range we provide the wall 7 with an opening 38 through which a part of the regulating wheel 6 extends just sufliciently to enable it to be operated and to expose one or more designations (not shown) indicating the predetermined heat within the oven. In the form here shown we preferably slightly depress the wall of this opening. It will be understood that this may be varied so long as the object of it is accomplished.

'VVe have explained this ifqxrovement in considerable detail but we wish it understood that variations may be made in the construction without departing from the spirit of the invention so long as the variations are within a liberal interpretation of the appended claims.

Having thus described our invention what we claim and desire to secure by Letters 1 Patent ,is:

1. A gas range comprising a housing including an oven and a narrow vertically arranged compartment located at one side of the oven, a burner top located above the oven,

a manifold extending along the burner top to supply gas to its burners, said burners provided with handles for controlling the gas, K a swinging top adapted to enclose the burner top, manifold, burners and handles when not in use, a thermostatic housing located within the vertically arranged compartment, a burner for the oven, the thermostatic housing having gas inlets and outlets, the inlet communicating with the said manifold and the outlet communicating with the oven burner, means for regulating the thermostat, that part of the range housing enclosing the thermostatic housing having an opening through which' the regulating member is exposed, whereby the parts operate for the purpose set forth. 2. A gas range comprising a housing ineluding an oven and also a vertically arranged compartment at one side of the oven, a. burner for the oven, a thermostatic housing located within the said compartment and provided with a thermostatic member projecting within the oven, the said compartment provided with an outer wall attachable and detachable from the range housing for the purpose specified, said detachable wall having an opening, and a thermostatic hous ing provided with a regulating member projectlng through the said opening, gas inlets and outlets communicatin with the thermostatic housing, the gas out at communicating .With the burner and the gas inlet communicating with a manifold.

In testimony whereof we hereunto aflix our signatures. ARTHUR STOCKSTROM. ALMER H. BRODBECK.

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