US1202522A - Oil-stove. - Google Patents

Description

R. HOFFMAN.

' OIL STOVE.

APPLICATION FILED JULY 3. |916.

Patented Oct. 24, 1916.

entre ernarns entrenar orio. 7

RUDOLPH HOFFMAN, OF KANKAKEE, ILLINOIS, ASSIGNOR TO SEARS, ROEBUCK AND COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF NEW YORK.

OIL-STOVE.

' Lacasse.

Application filed. July 3, 1916.

To all whom it may concern.'

Be it known that I, RUDOLPH HOFFMAN, a citizen of the United States, residing at Kankakee, in the county of Kankakee and State of Illinois, have invented certain new and useful Improvements in Oil-Stoves, of which the following is a specification.

This invention relates particularly, although not exclusively, to oil stoves which have burners of the wickless type, and the invention refers to certain improvements in the means for supporting and securing the oil reservoir.

In a stove equipped with wickless burners, the level of the oil in the burners should be in a certain plane. The oil-supplying means, according to my invention, comprises a stationary well which feeds the supply pipe for the burners and a removable reservoir which may be in the form of a glass bottle, and which is supported in inverted position with the neck of the bottle projecting down into said well. In manufacturing these bottles, variations in dimensions of the neck and adjacent portions will occur, and unless means be provided to prevent, such variations, when the bottles are associated with their oil wells, will cause a variation in the plane of the oil level main tained in the wells and the burners.

It is the object of the present invention to provide means for supporting and securing the reservoir on the oil well in such a manner that variations in the reservoir will not affect the operative relation of the reservoir to the oil well and therefore an invariable oil level will be insured.

In the accompanying drawings, Figure 1 is a view partially in front elevation and partially in vertical sectionillustrating an oil stove embodying the features of my invention. Fig. 2 is a fragmental plan view. Fig. 3 is a plan view of the cap and supporting member. Fig. 4 is an enlarged vertical section through the oil well, reservoir, and supporting means.

In the drawings, 5 indicates a fragment of an oil stove body and 6 designates the annular oil holder or bowl of a wickless burner. A pipe 7 leads from the bottom of the oil well 8 and supplies oil to one or more hurners 6. The oil well 8 may be supported in any suitable manner, being here shown as carried by a horizontal plate 9 and depending from the edges surrounding a hole in the Specification of Letters Patent.

Patented Oct. 241e, 1916.

Serial No. 107,273.

plate, the latter being supported on one end of the stove body 5 in any desired manner.

The form of oil tank or reservoir 10 herein shown is a large glass bottle having a body 10l of oval shape in end view (F ig. 1) and elongated or rectangular shape in plan view, and a neck 11. The shape of the reservoir, however, is not essential to my invention. rIhc lower end of the neck 11 of the bottle has exterior screw-threads formed thereon to receive a screw cap 13. F ixed to the outlet end of the cap 13 is a bottle-supporting plate 1-1- of generally conveXo-concave form with a peripheral horizontal liange 15 adapted to overlie and be supported by the plate 9 at the upper edge of the wall of the oil well 8. The cap 18 and support 14 are rigidly secured together as by soldering, so that the reservoir will be firmly supported on the oil well.

'I'he cap 13 is provided with a valve structure to prevent escape of oil from the reservoir except when the latter is in operative position on the oil well. This valve structure in the preferred form comprises a guide 2O secured to the innery side of the cap, a stem 21 slidable in said guide and having a valve member 22 fixed thereto, and a coiled spring 23 tending to hold said valve mem-- ber against the valve seat 24 on the closure to close the discharge opening 25. The stem 21 projects out through the discharge opening 25 so that in the act of associating the reservoir with the oil well the stem will come in contact with the bottom of said well and open the valve, as clearly shown in Fig. 4:.

rlhe oil in the well 8 has a tendency to creep up in a thin film along the walls of the well and thence along the plate 9. In order to prevent this a guard Q6 is provided. This guard in the present instance is secured at the upper edge of the oil well and entends inwardlyand downwardly there. from, being of conveXo-concave form'substantially similar to the reservoir-supporting element 14. rI`he latter fits within the guard 26 and may be partially supported thereby. In the present instance the support 14 has a central bulging portion 14:a which lits more or less snugly within the central opening in the guard 26 and assists to hold the reservoir in proper position with relation to the oil well. 14b are openings in the lmember 14 to permit air to enter the oil wel To hold the reservoir in place, I provide a socket 27 formed of sheet metal and secured at 28 to theV stove framework, said `socket being adaptedto receive the inner 'and an upwardly-extending plate 30. As

shown in the drawings, the socket may be formed from an integral piece of resilient sheet metal. The plate 30 overlies the reservoir sufficiently to hold the latter against tilting` outwardly away from the stove framework 5.' If desired, the plate 30 may be provided with a finger portion 31, whereby said plate may be sprung upwardly away from the reservoir. As shown in Fig. 2, the'socket 27 engages the middle portion of the tank and is suiliciently wide (in a horizontal direction) to prevent the tank from turning in a horizontal plane. 'Ihe plates 29 and 30 also serve to protect the reservoir, in a measure, from the heat generated by the burners.

Vhen the reservoir 10 is to be removed from the oil well 8. the operator grasps the ends of the body 10'LL and withdraws the reservoir outwardly and upwardly, the plate 30 yielding to allow of such withdrawal. After the reservoir has `been filled, the operator replaces it upon the well 8, the plate 30 again yielding to permit the body 10a to enter the socket 27.

' l/Vhen the reservoir is placed on the well 8,oil will iiow from the reservoir into the oil lwell and thence into the pipe 7 and burner 6 until the level of the oil in the burner and the well rises to a plane coincident with or near the plane of the discharge opening 25. Atmospheric pressure will prevent further escape ofoil from the reservoir, except as it is used up at the burner. Inasmuch as the cap 13 is mounted on the end ofthe neck of the reservoir and the flange 15 rests/on a partwhich bears a xed relation to the desired oil'level, any reservoir can be placed on any oil well in assembling` the stoves, and an invariably oil level in the well will be insured. Y

' Certain features of the construction herein disclosed are claimed in my co-pending application Serial No. 61,388, filed November 13, 1915.

I claim as my invention 1. An oil stove having, in combination, a

reservoir having a horizontally elongated body and a neck made of glass, a cap on the neck, means for supporting the cap, and a socket secured to the framework, said socket comprising a plate arranged to lie in contact with the lower side of the body, and a plate arranged to overlie the body, said.

socket being of suiiicient width in a horizontal direction to prevent the body from turning in a horizontal plane.

2. An oil stove having, in combination, a framework, a reservoir having a neck and a body, a support for the neck of the reservoir, and a socket to receive the body of the reservoir, said socket being formed of resilient sheet-metal and being secured to the framework and comprising a plate arranged to lie in contact with the lower portion of the body and a plate arranged to overlie the body of the reservoir.

3. An oil stove having, in combination, a framework, a reservoir having a neck and a body, a support to which the weight of the reservoir is transmitted by means of the neck, and a socket to receive and engage the body of the reservoir, said socket being located between the body of the reservoir and the framework and serving to shield the reservoir from heat.

4. An oil stove having, in combination, a reservoir having a neck and a body, a support to which the weight of the reservoir is transmitted by means of the neck, and a socket to receive the body of the reservoir, said socket comprising a resilient portion adapted to engage said body.

5. An oil stove having, in combination, a support, a reservoir having a neck and a body, a supporting member connected to the neck and adapted to rest upon said support, whereby the weight of the reservoir is transmitted to said support by means of the neck, and a socket to receive the body of the reservoir.

6. An oil stove having, in combination, a reservoir having a neck and a body, a support for the neck of the reservoir, whereby the weight of the reservoir is transmitted to said support by means of the neck, and a socket to receive the body of the reservoir.

In testimony whereof I have hereunto set my hand.

RUDOLPH HOFFMAN.

' Copies of-this patent may be obtained for ve cents each, by addressing the Commissioner of Patents.

Washington, D. C.

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