US2197969A - Stove - Google Patents

Description

April 23,1940. c, EHRET' 2,197,969

STOVE Filed May 1, 1937 I 2 Sheets-Sheet 1 jig. 1

" INVENTOR.

Clement Ehret ATTORNEY.

Apri. 3,1940. QEHRET 2,197,969

STOVE Filed May 1,- 1937' 2 Sheets-Sheet 2 I f i I 3 l a INVENIOR. Clement Ehrec ATTORNEY.

Patented Apr. 23, 1940 UNITED STATES PATENT oFFTcE STOVE Clement Ehret, White Plains, N. Y. Application May 1, 1937,Serial No.'140,115

6 Claims.

This invention relates to stoves and more particularly that general type of stove exemplified by my prior patents, No. 2,001,713, dated May 21, 1935; No. 2,001,714 dated May 21, 1935, No. 2,062,870, dated December 1, 1936, and No. 2,102,616, dated December 21, 1937. These are illustrative of stove construction wherein a stove body or a part thereof is mounted to rotate on a suitable base, so as to render different burners at the top of the stove readily accessible from the front of the stove and without requiring a, cook to reach over a lighted burner to the back of the stove to reach any particular pot or receptacle supported thereby. In certain of my prior disclosures the stove also comprises a stove body which may be raised and lowered to adjust such stove body to the most convenient elevation for the particular user.

In one of its practical forms, the present invention provides a stove wherein the stove body is mounted for rotation and vertical adjustment on an appropriate base and is so connected to the base that rotation of the stove body will bring about this vertical adjustment. The stove, however, comprises means, hereinafter described in detail, to limit normal rotation of the stove body to approximately one complete rotation, so that the user of the stove may rotate it to bring different pots into convenient position without materially changing the vertical adjustment of the stove body. When vertical adjustment isdesired, said means is manually released to permit the stove body to be unrestrictedly rotated to raise or lower the same into the desired position of adjustment.

Features of the invention, other than those adverted to, will be apparent from the hereinafter detailed description and claims when read in conjunction with the accompanying drawings.

The accompanying drawings illustrate different practical embodiments of the invention, but the constructions therein shown are to be understood as illustrative, only, and not as defining the limits of the invention.

Figure 1 is a side elevation of a stove embodying the present invention with certain parts shown in central section in the interest of clearness.

Figure 2 is a section on the line 2-2 of Figure 1.

Figure 3 is a central vertical section of the lower portion of a stove showing a modified form of construction.

Figure 4 is a section on the line 4-4 of Figure 3.

It will of course be understood that the stove side cabinets as shown in myPatent No. 2,001,713"

and these cabinets :may be provided with heating elements fed from any appropriate source of fuel supply. Furthermore the'stove of this invention may have associated therewith appropriate water supply means, fume and smoke disposal means or other adjuncts, substantially, e. g., as disclosed in my prior or .copending patents. For these reasons, the invention is not. limited to these or similar changes and it .will be understoodthat it is directed to the construction rather than to the appearance, design or fuel used.

Referring first to Figures 1 and 2, the stove is herein shown as comprising a base I and a stove body 2. The base I has an upstanding internally threaded cylindrical. part 3, and the stove. body has a depending threaded stem- 4 screwed into the threaded base. .The stem is rigid with the stove body, so that rotation of the stove body will cause the stem to be screwed-into or-out of the base and thus produce vertical adjustment of the stove body with respect to the base.

The stove body is provided therein with one or more appropriate ovens having suitable doors 5, while the stove top 6 is inthe form of a plate with pot holes or the conventionalgrid, beneath which are mounted the usual burners or heating elements. If gaseous or liquid fuel is employed,

it may be fed from a header 1 from which control cocks 8 supply the fuel to the. stove burners. The manner in which the fuel is fed to the header has not been shown as this may be accomplished in anyv suitable way, such, for example, as shown The annularheader provides .a convenient handle to rotate the stove body to change its angular position or to bodily raise or lower the same as may be desired.

With the threaded telescoping'arrangement shown, it will of course be apparent that rotation of the stove body will cause said stove body to be raised or lowered, but it is undesirable that this adjustment be varied inadvertently, for the desired elevation, to any appreciable extent. Consequently, I have shown in the drawingspositively acting means to limit therotation of the stove; body .within ;;predetermined; limits which in my Patent No. 2,001,713, hereinbefore referred will not materially change its elevation. The means for accomplishing this result may of course widely vary, without departing from the invention, but it is shown as comprising a detent 9 in the form of a latch, one end of which is pivoted to the base at [0, while the other end extends into a position to substantially bear against the inner surface of the stem 4. Intermediate its ends, the latch is pivotally secured by a pin l I to a plunger l2, guided for movement through a bearing l3 in the base and having at its outer end a foot button 14. A spring [5 is interposed between the foot button and the base.

and normally elevates the plunger I2 to draw the upper end of the latch substantially into con-' tact with the inner surface of the stem 4.

Secured to the inner face of the stem 4 is a bar or an abutment strip 16 which extends longitudinally of the stem and is rigidly secured to the inner face thereof to provide, at the opposite sides of said strip, abutments or shoulders I! and I8. These abutments project to overlap the end of the latch 9 when the latter is in the normal full line position shown in the drawings. In lieu of this strip, vertically arranged pins, lugs or depressions may be employed to form opposed abutments.

With this arrangement it will be apparent that the stove body may be rotated from a position wherein the latch will engage with the abutment H to a position wherein the latch will engage with the opposite abutment l8 and this movement Of the stove body will constitute substantially one complete .rotation thereof. In other words, the abutments I1 and I8 are spaced apart at an angle of almost 360 and this angular spacing will define the amount of rotary movee ment of which the stove body is normally susceptible. If further rotation in the same direction is desired, it will be necessary to withdraw the latch from the path of the strip l6 and in order to do this pressure must be exerted on the foot button l4, so as to throw. the latch back into the dotted line position where it will remain as long as the plunger is depressed. As soon as the plunger is released the spring IE will return the latch into the path of the strip IS. The lever may be guided and laterally stayed by a close fitting guide l9 mounted on the inside of the base as shown.

In the manufacture of the stove as described, the threaded connection between the stern and the base is made with a fairly moderate pitch, so that when the latch is in normal position to allow of substantially one complete rotation of the stove body, this movement will not materially change the elevation of the stove body and consequently the stove body may be rotated freely within these limits to render different burners or ovens conveniently accessible from the front of the stove. When vertical adjustment is desired, the detent or latch must be withdrawn and the stove body rotated through a plurality of rotations to obtain any marked change in vertical adjustment of the stove body.

The construction of Figures 3 and 4 operates in the same general way as the structure of Figures 1 and 2, and differs therefrom mainly in the means for limiting the normal rotation of the stove body. In this construction the stove is provided with a base I and a body 2, as heretofore, and the base has an upstanding, internally threaded, cylindrical part 3 into which the stem 4 of the body is threaded. The stem is provided internally with a vertical keyway-20 in which slides a key 2| formed on a plunger 22. The plunger is free for raising and lowering movement and the key and keyway connection between the stem and the plunger insures conjoint rotation of the plunger when the stem is rotated.

Extending radially inward from the base I is a finger or stop 23 which normally projects into the path of the key 2| and the opposite sides of the stop form abutments 24 and 25 which correspond in functionto the abutments l1 and I8.

Pivoted on the bracket 26 interiorly of the base is a lever 21, the inner end of which has a nose 28 bearing against the bottom of the plunger 22. To the opposite end of the lever is attached the stem of a foot button 29, corresponding to the button l4, and a spring 30 normally elevates the foot button, so that the plunger 22 will normally partake of a position wherein the key 2| will extend into the path of the stop 23.

With this arrangement the stove body is free to rotate through an angularity of almost 360", i. e., through that angle defined by the abutments 24 and 25. However, when it is desired to raise and lower the stove to vertically adjust the same, the foot button is depressed and serves to elevate the plunger 22 above the stop 23, so that the stove body may be freely rotated to obtain the adjustment desired. When this has been accomplished and the foot is released from the button, the spring 30 will lower the nose 28 and permit the plunger 22 to again descend to the level of the stop 23.

The structures of Figures 1-4 are extremely simple in their operation, may be economically manufactured and are thoroughly efficient in use. The angularity of normal rotation of the stove body is so small, that no appreciable adjustment will be occasioned through rotation of the stove body within the angularity defined by the abutments I1 and I8 and 24 and 25 and yet by simple manipulation of the foot buttons, the stove may be adjusted by rotation of the stove body to the extent necessary for such adjustment.

' The parts are of such simple construction that they are not apt to get out of order and no skill is required in their manipulation. Furthermore, the operation of all the parts is positive and thoroughly eificient for the carrying out of their intended purposes.

In the stove structures which I have chosen for the purpose of illustration gas is used as fuel, but it will be understood that any form of fuel either gaseous, liquid or solid type, as well as electricity, may be employed by making appropriate changes in the burner construction and in the operative connections, as will be apparent to those skilled in the art.

The foregoing detailed description sets forth the invention in its preferred practical embodiment, but it is to be understood that the invention is not restricted to details of construction which may be modified within the scope of the appended claims.

Having thus fully described the invention, what I claim as new and desire to secure by Letters Patent is:

1. A stove comprising a stationary base, a stove body mounted on the base and having a threaded connection therewith, whereby rotation of the stove body will efiect a change of elevation thereof with respect to the base, and means normally restricting rotation of the stove body to predetermined angular movement within which the elevation of the stove body is not noticeably changed, said means being releasable to permit of u unrestricted rotation of the stove body to ver-. tically adjust the same as desired.

2. A stove comprising a base and a stove body having a threaded connection therebetween to allow of change of elevationof the stove body through rotation thereof, there being abutments in angularly spaced apart relation and rotatable with the stove body, a stop mounted on the base to normally engage with the abutments when the stove body is rotated to limit the rotation of the stove body in accordance with the angular spacing of the abutments, and means for effecting rela tive movement between the abutments and the stop to permit the abutments to clear the stop and allow of unrestricted rotation of the stove body.

3. A stove comprising a stationary base and a relatively rotatably stove body mounted on the base, said stove body and base having, respectively, upright parts which telescope with threaded engagement with one another, angularly spaced apart abutments on one of said parts, and a stop on the other part normally projecting into the. path of movement of the abutments when the stove body is rotated to normally limit the stove body to rotation within the angularity of spacing of the abutments, said stop being retractable out of'the path of the abutments to permit of unrestricted rotation of the stove body.

4. A stove comprising a stationary base and a relatively rotatable stove body mounted on the base, said stove body and base having, respectively, upright parts which telescope with threaded engagement with one another; there being angularly spaced apart abutments on one of said parts, and a stop on the other part normally projecting into the path of movement of the abutments when the stove body is rotated to normally limit the stove body to rotation within the a'ngularity of spacing of the abutments, said abutments being movable out of the path of the stop to permit of unrestricted rotation of the stove body.

5. A stove comprising a base, a stove body having a depending stem rigid therewith and having telescoping threaded connection with the base, whereby rotation of the stove body will impart vertical adjustment thereto, and means for limiting the rotation of the stove body to angular'rotation of not exceeding 360.

6. A stove comprising a base, a stove body having a depending stem rigid therewith and having telescoping threaded connection with the base, whereby rotation of the stove body will impart vertical adjustment thereto, and means for limiting the rotation of the stove body to angular rotation of not exceeding 360, said limiting means being releasable to permit of unrestricted rotation of the stove body.

v CLEMENT EHRET.

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