US1745708A

US1745708A - Liquid-fuel stove

Info

Publication number: US1745708A
Application number: US264155A
Authority: US
Inventors: George E Pickup
Original assignee: WEHRLE CO
Current assignee: WEHRLE CO
Priority date: 1928-03-23
Filing date: 1928-03-23
Publication date: 1930-02-04
Anticipated expiration: 1947-02-04

Description

Feb. 4, 1930. PICKUP 1,745,708

LIQUID FUEL STOVE Filed March 23, 1928 MIIIIW 4 sllill p I 52067175".- George/E. 1 1207131149,

a, M M W Patented Feb. 4, 1930 UNITED STATES GEORGE E. PICKUP, OF NEWARK, OHIO, ASSIGNOR TO THE WEHRLE COMPANY, OF NEWARK, OHIO, A CORPORATION OF OHIO PATENT OFFICE LIQUID-FUEL STOVE Application filed March 23, 1928. Serial No. 264,155. I

The invention relates generallyto liquidfuel' stoves and more particularly to stoves of this general character in which liquid fuel is delivered to'the burners of the stove under I pressure which is created in a supply tank by means of a pump.

It is a general object of this invention to provide a new and improved pump for creating pressure in the liquid-fuel supply tank which pump has a large capacity and is mounted relative to the stove so as to be easily and readily movable from a normal out-of the-way position to an operative position.

. A more specific object of the invention is to provide a pump for creating pressure in a liquid-fuel supply tank which is normally carried in an out-of-the-way position adjacent one of the legs of the stove-and may be moved with ease and facility to an operative position in which such pump is supported during the pumping operation.

" Other objects and advantages will become apparent from the following description and from the accompanying drawings in which: Figure l is a perspectiveview of a liquidfuel pressure stove embodying the invention.

Figs. 2 and-3 are front and side elevations of the pumpsupported in the normal out-ofthe-way position thereof. Y

"Figs. 41 and 5, are fragmentary elevational views of thep'ump in normal and operative I positions respectively, the leg portion being in operative positionshown thereinin section to expose the means for supporting the pressure creatlng means Figs. 6 and 7 are detail sections taken 1 along the lines 66 and 77 of Figs. 7 and 2 respectively.

While the invention is susceptible of vari- I I of the invention as expressed in the appended claims.

I have chosen for the purpose of illustra tion, to show the invention embodied in a liquid fuel pressure cook stove which comprises generally a frame 10 mounted upon four

legs

11, 11 and supporting a plurality of open-flame burners generally designated as 12 and an oven and broiler compartment 13. A liquid-fuel pressure supply tank 14 of any generally well-known construction is mounted in an appropriate position on the frame of the stove and is shown in this embodiment as being mounted at one end of the frame. The pump by which pressure is created and forced into the liquid-fuel supply tank 14 comprises an elongated barrel 15 within which a piston (not shown) is adapted to be reciprocated by a piston rod 16. An operating handle 17 preferably of a size to permit it to be grasped by both hands of the operator is secured to the outer end of the piston rod.

The pump 14 is adapted to be mounted in an out-of-the-way position along one leg 11 of the stove when not in use, and a simple means is provided for pivotally supporting the pump in the inoperative position thereof, which means permits the pump to be swung 1nto an operative position. In the present embodiment the leg 11 on which the pump is mounted is preferably of cast metal and is provided near'the lower end thereof with a pair of spaced outwardly projecting

parallel lugs

18 and 19. p 1

As may be seen in Figs. 2 and 6 the lower end of the pump is provided with an axially extending projection in the form of a boss 20 which is of a size to be received loosely between the

lugs

18 and 19 on the leg. One side of the boss 20 has a substantially conical or rounded pin 21 (Fig. 7) formed thereon adapted to be received in a recess 22 formed in the adjacent lug 18. A screw threaded aperture 23 is formed in the opposite lug 19 to receive a set screw 24: which engages in an appropriate recess 25 formed axially of the pin 21 in the opposite side of the boss 20. When the pin 21- is positioned in the recess 22 in the lug 18 the set screw 24 may be screwed inwardly to engage the recess 25, in the boss to mount the lower end of the pump lotstantially upon the axial center of the pin 21' and is adapted to communicate with a second passage-way 28 formed in the flange 18 and extending from the recess 22 rearwardly therethrough. The second passage-way is connected to a tube 29 (Fig. 8) which leads to the liquid-fuel pressure supply tank. If a one way-way valve is not provided in the pump such a valve 30 of suitable'construction may be interposed between the second passage-way 28'and the tube 29. r

In this manner the pump is pivotally secured to the lower portion of one of the legs of the stove so that the pump can be swung outwardly from a vertical inoperative position. It will be apparent that in this construction a pump having a large air capacity may be employed inasmuch as the barrel may be substantially the length of one of the legs of the stove.

In order that the operator may he so desires employ, bothhands in operating the pump, means preferably is provided to hold the pump rigidly in its operative position.

This means, as shown in Figs. t and 5, comprises a split collar 31 secured about the upper portion of the pump. Between the ends of the split collar an elongated bar 32 is pivoted as at 33 which bar is adapted to be inserted in an appropriately positioned slot 3% in the leg of the stove. The lower edge of the bar' near the pivotal point thereof slopes inward ly of the bar toward the pivotal point to permit the bar to swing downwardly along the inner side of the stove leg, as shown in Fig; 4, when the pump is in its inoperative position. A notch 35 is formed in the lower edge of the bar near the outer end thereof which notch engages the lower margin of the slot 34 as the pump is moved from its inoperative to its operative position.v This engagement between the bar carried by the pump andthe stove leg holds the pump at an operative angle thereto with suiiicient rigidity to permit an operator to employ both hands in using the pump.

The operation of the device is simple. Considering that the pump is in its inoperative position and it is desired to increase the pressure in the pressure supply tank, the operator may by grasping the handle of the pump swing the upper end of the pumpaway from the leg of the stove until the notch 35 in the bar 82 engages the stove leg. This engagement holds the pump in operative position until the user has created the desired amount of pressure in the pressure supply tank after which the bar is disengaged from the stove leg and the pump swung inwardly to its original position. In this position the bar swings downwardly by gravity and holds the pump against the stove leg until a positive ou ward pull moves the pumpagain to its opera- V pump to one of said legs,'said means comprising a pair of outwardly projecting lugs on one of said legs, an axially extending a member onthe lower end of said pump adapted to be received loosely between said lugs,

and means for pivotally securing said mem-' I her to said lugs.

2. A liquid fuel stove comprising,in com-x bi'nation, a frame, legs supporting said frame, a liquid-fuel pressure tank carried by said frame, a pump of substantially the same length as one of said legs for creating pressure in said pressure tank, means for mount? ing said pump on one of said legs to permit said pump to be moved from a remote outof-the-way position'to an operative position comprising a pivotal connection between the lower end of said pump and said stove leg, and meansfor limiting the outward-swinging movement of theupper end of the pump. 7

3. In combinationwith a liquid-fuel stove having a liquid fuel pressure supply tank, a pump connected to said supply tank for creating pressure therein, means for pivotally'se-- curing the lower end of said pump to a lower portion of said stove so that said pump normally extends substantially upwardly along the lower portion of said stove, and p I means for limiting the outer swinging movement of the upper end OfSEllCl pump.

4.-. In combination with a liquid fuel stove having a liquid fuel pressure supply tank,-

and pivotally mounted on one of the legs of said stove to permit swinging movement of said pump from an inoperative out-of-theway position to an operative position.

6. A liquid fuel pressure stove comprising, in combination, a frame, legs for supporting said frame, a liquid-fuelsupply tank, a pump connected to said supply tank, means pivotally mounting said pump on one of said legs, and means for limiting the swinging movement of said pump.

7 I A liquid-fuel pressure stove comprising, in combination, a frame, legs for supporting said frame, a liquid-fuel supply tank, a pump connected to said supply tank, means pivotally mounting one end of'said pump on one of said legs, and means for limiting the swinging movement of the other end of said pump.

8. A liquid-fuel pressure stove comprising, in combination, a frame supporting a liquid fuel pressure system, legs for supporting said frame, a pump for supplying pressure tosaid system, andmeans formounting said pump on one of said legs, said means comprising a pair of outwardly projecting lugs, one of said lugs having a recess in the inner side thereof, a flange projecting axially from the lower end of said pump and adapted to fit between said lugs, a rounded projection on one side of said flange adapted to be received in said recess in said lug, and a set screw extending through the opposite one of said lugs into engagement with said flange substantially on the axial line 1 of saidprojection on said flange and said recess in the other lug.

9. A liquid fuel stove comprising, in combination, a stove frame, legs for supporting Q leg and said said frame, a pump, means for securing said pump to one of the legs comprising a pair of spaced projections on said leg one of which has an air passageway extending therethrough opening at one end toward the other of said projections, a part carried by said pump adapted to be received loosely between said projections on said leg, said pump having a discharge passageway therefrom passing through said part and arranged to communicate With the air passageway in said proj ection, and means providing a pivotal interengagement between said projections on the part of the pump positioned therebetween.

In testimony whereof, I have hereunto affixed my signature.

GEQRGE E. PICKUP.