US1740943A - Asjighor - Google Patents

Description

Dec. 24, 1929.

.1. IRONSIDE 1,740,943

COLLAPSIBLE STOVE STRUCTURE Filed J 1 1 1928 4 Sheets-Sheet 1 I N V EN TOR.

O o 125m fins/d A TTORNE Dec. 24, 1929. J. IRONSIDE COLLAPSIBLE STOVE STRUCTURE Fi y 1 928% 4 Sheets-Sheet 2 EINVENTOR ams flan- 14a A ORNEY.

Dec. 24, 1929. J. IRONSIDE 1,740,943

COLLAPSIBLE STUVE STRUCTURE Filed July 14, 1928 4 Sheets-Sheet 3 MM. M

A TTORNEY Dec. 24, 1929. J. IRONSIDE COLLAFSIBLE STOVE STRUCTURE Filed July 1928 4 Sheets-Sheet 4 z H K INVENTOR. 7672765 Iwnel'de BY A /i W W ATTORNEY.

Patented Dec. 24, 1929 UNETED STATES PATENT OFFICE JAMES IRONSIDE, 0F DETROIT, MICHIGAN, ASSXCINOR, BY MESNE ASSIGNIMENTS, TO CLAYTON & LAIVIBEBT MANUFACTURING COMPANY, OF DETROIT, MICHIGAN, A

CORPORATION OF DELAWARE COLLAPSIIBLE STOVE STRUCTURE Application. filed. July 14, 1928. Serial No. 292,840.

This invention relates to collapsible stoye structure, and has to do particularly with stoves of the liquid fuel type.

The present invention contemplates the provision of a collapsible stove structure particularly adaptable to stoves of the oil and gasoline type having a slidahle generator and fuel supply unit. More specifically, this novel stove structure comprises a compact, extremely simple, unitary stove structure, various parts of which are foldahle and so designed as to cooperate with other parts in a novel manner, whereby to make the stove structure easily set up or collapsible with the use of a minimum number of parts.

A further feature of the invention has to do with a novel combination between a fold able wall of the stove casing and the fuel supply unit for the burners, said foldable wall serving two functions, one to permit movement of the fuel supply unit to its proper position away from the mixing chamber, and two, to serve as a support and positioning means for such fuel supply unit.

Other features of this invention reside in the novel supporting frame or leg structure, which in combination with the novel design of the stove casing permits such legs to be easily folded within the general plane of the stove casing.

In the drawings:

Fig. 1 is a plan view of a collapsible stove structure constructed in accordance with the present invention.

Fig. 2 is a longitudinal sectional view taken on line 22 of Fig. 1, and illustrating the relation of the various parts of the stove structure when in set up position.

Fig. 3 is a fragmentary sectional view of one end of the stove casing, showing the fuel supply unit and adjacent parts of the stove casing in collapsed folded position.

Fig. 4 is a side elevation of the stove structure when the same is folded up and ready to be carried, showing in particular the position of the leg members when in folded position.

Fig. 5 is a sectional view taken partly on line 5-5 of Fig. 1.

Fig. 6 is a sectional view taken on line 66 of Fig. 1, and showing in particular the areaate shield for the fuel supply tank and the manner of positioning the end wall of the stove casing when in supporting position.

Although the novel features of the stove structure of the pres nt invention may be embodied in connection with various types of burner structure, the present cmbmlinicnt is illustrated in connection with liquid fuel burners of the type having a reciprocablc fuel supply unit including a generating tube.

In Figs. 1 and Q I have illustrated a twoburner starting and generating apparatus of the general type described in the copending application of Clarence l3. Overly. Serial No. hi'TAll-Tl, filed May 14-, 1928. This burner structure comprises a mixing chamber 1 which in turn is provided with a pivoted cap 2 and is in direct communication as at 3 with a manifold l which leads directly to the burners 5 and 6.

A starting member 7 is preferably positioned in alignment with the mixing chamber 1 and the head of the mixing chamber 1 is apertured to receive a suitable reciprocablc generating tube 8 which in turn is rigidly secured to a suitable supply tank 5.). The generator tube 8 and the supply tank 9 are adapted to be moved as a unit to and from the mixing chamber. It will be obvious that the generator tube 8 is moved during the inward movement of said liquid supply tank and will be moved through the mixing chamber 1 and in contact with the valve member 2. 1n starting the stove. the generator tube is adapted to he moved through the mixing chamber 1 to first raise the valve member 2 and then take a position adjacent the end of the memher T whereby vaporized fuel issuing from the jet block of the generator tube will strike the deflector member 7 and will be directed in the form of a blast of flame back against the generator tube 8 to accelerate starting thereof. Such starting position of the generating tube is best shown in Fig. 3.

As will be obvious from Fig. l, the generator tube is adapted to be reciprocated in alignment with the two burners 5 and G. For this purpose, the end wall of the stove casing which may be designated 10, is preferably separate from the remainder ol the casing but pivoted to the side walls thereot as at ll. This end wall of the casing is provided with suitable arcnate flanges 12 which are turned inwardly at right angles to the wall ll). A. suitable bar 13 is adapted to extend across the end of the casing above the pivoted wall ll). This bar serves as a reinforcing member and also serves as a pivot for one end of the cover as shown at. 14 in Fig. 1.

One end of each arcuate flange til is provided with a suitable laterally extending member 15 which adapted to contact with the cross bar 13 when said end all is lowered to the position shown in Fig. 3. lVhen the portions 15 of the flanges 12 strike the cross bar 13 the end wall lll ot the casino will be positioned in alignment with a portion it of the bottom of the casing.

The slidable fuel supply unit consisting of the generator tube 8 and tank $3 is adapted to he guided and positioned by the end wall ll] when moved to the positicn shown in Fig. 2. As best shown in Figs. 1 and 6 the end 'all 10 is provided with a centrally positioned groove or guideway 17, and the tanl: i) is preferably provided with a. member 1b which is preferably of the approximate width of the guideway 17 and adapted to he guided thereby.

The bottom of the stove casing is inwardly depressed or formed whereby to provide a. bottom wall 19 which is higher than the bottom 16. One end of the side wall Formed by the bottom depression preterabry formed at an angle as indicated at 20 for a purpose to he later described and the distance of the wall Llf) from the end of the casing is sutlieieut to provide room for the supply tank when moved to its collapsed position within the casing. as shown in Fig. 3. A suitable arcuately shaped shield 21 is pivotally sup ported by the cross bar '13 whmehy the same may be positioned in two positions. one as shown in Fig. 2. and the other as shown in Fig. 2). This shield is not necessary tor the successful operation ot the stove. but is more or less of a precautimiar y nature to shield the supply tank 9 from the heat of the burners. suitable slot 22 is 'l'm'med in this shield whereby to receive the generator tube.

The correct position between the jet block of the generator tube and the entranee head of the mixing chamber is approximately that shown in Fig. 2. and to maintain this position the end wall 11) is preterably provided ith a suitable positioning pin 23 which is adapted to register with a. suitable aperture ill in the guide 18. The end of the guide to is pretcrably upturned and the fuel tanl; U and generator tube is treely moved outwardly as a unit so that the guide 18 will ride upon the pin 23 whereby to permit registration of the aperture it therewith.

.It will be understood that the 'l'nel supply unit is freely movable and that the entrance head oil the mixing chamber serves only as a guide for the generating tube. hen the fuel supply unit is moved outwardly towards the position shown. in Fig. 1, such unit may be bodily lifted so as to easily cause cooperation between the pin 23"; and aperture 24;. The bottom wall lb of the stove casing is provided with another pin 23 which is positioned centrally ot' the easing and is adapted to Contact with the end o I: the guide in when. the fuel supply unit is moved within the casing to starting or collapsed position.

hen the fuel supply unit. is moved inwardly to starting position the contact between the guide ltl and the pin 25 will insure the correct positioning between the end of the generator 25 and the dellector or starting member 7. There is no guidcway formed in the bottom lb of the casing, as this is not necessary.

The pivoted top o l the casing may he generally designated :26 and such top preterahly provided with three inwardly extending flanges, two at the ends as at 27 and 28. and the other at the front as at 29. The flange 28, which is adapted to extend paral lel with the bar 3 when such cover is closed, is so spaced from such bar 13 that when the end wall ll] is moved to the position shown in Fig. 3, the flange 28 will be on the outside of the upper edge of said plate 1.0. In other words, when the plate ll) has been moved to the position shown in Fig. El the downward movement of the top 26 to close the case will cause the flange 28 to fall to the outside of the end plate 10 and thus clamp the same in assembled position.

The bottom of the casing is preferably provided with the openings 3t! and 31, as best shown in Fig. 1. whereby to receive the end portions 15 of the flanges 12 when the end wall is moved to its collapsed position. shown in Fig. The ends it oi the llanges 12 are slightly bent as shown in Figs. 4 and 6 so as not to conflict with the leg members.

The top 26 is preferably pivoted to the easing by means of the flanges 27 and 28. the flange 27 being connected at its inner end to the permanent end wall of the stove casing. and the flange 28 being pivoted at its inner end to the crossbar 13. By this arrangement, the back edge ot' the top 26 may he positioned very close to the back wall 371 of the stove easing whereby when the back edge #32 eontaets with the all Elil it will serve as a stop so as to support the top at; in an open position. One eorne 3t of the end wall 10 is cut away so as to provide for the pivot between the flange 28 and the bar 13.

As the generating and burner structure is not as high as the fuel supply unit. which comprises the tank 9 of the generator 8. the bottom of the stove casing is recessed as previously described. One end of the hottom of the casing, which is not recessed, is of such size, as shown in Fig. 3, to serve as a chamber for receiving the tank 9 when the same is moved to collapsed position. The other end wall of the depressed portion of the bottom of the casing and designated is preferably formed at the same angle as the end wall 20. This end wall 35 is spaced from the end wall of the stove casing but this spacing is not for the reception of any article but merely to so locate the wall 35 as to position the leg members.

As best shown in Fig. 4 the stove is provided with two leg members which may be designated 36 and 37, and each comprising off-set portions to form spaced contact menu bers 38 and 39. The inturned leg portions of each member 36 and 37 are riveted as at 40 and 411 to the front and bacx walls of the stove casing. The riveting or securing of the leg members to the walls of the casing is as to produce friction between the in-tur: portions of the leg members and the w: of the casin The bottom edge of the front and b: c Walls of the casing are inturned as at i2 um 43, such inturned edges being positioned lie-- low the normal collapsed po ition of the leg members, as best shown in Figs. 3 and 5. to serve as friction retainers for" the leg members so as to normally retain them in folded position. The friction produced by the riveting or securing of the leg members is preferably suflicient to keep the same in eoliap-ied position such as shown in Fig. 3 and the inturned portions 42 and 4S serve as ulditiomil friction members and prevent accidental unfolding of the leg members.

In order to set up the stove. the leg menu hers 3G and 37 may be moved to the position shown in Fig. whereby they will contact with the walls 20 and which serve as stops for positioning the leg members, the inturned portions 42 and also assisting to frictionally maintain the legs in their adjusted position. It will thus be seen that I have provided a novel stove easing which may be completely collapsed and folded up and the leg members of which are not only designed to be folded within the confines of the casing but which are also extremely simple and compact in design and operation.

The pivoted top member is provided with two plates or shields 45 and 46 which are hinged to the top 26 by means of suitable hinge members 4? which are preferablv spot welded to the top as best shown in Fig. hen the shields 45 and 46 are not used the top 28 sets farther back than in the normal position shown in Fig. 6. lVhen the shields are used, the top 28 will preferably be held appro imately vertical and will be support ed in such position by the contact between the shields and the stove casing.

l' hat I claim is:

E -h red 1. A stove structure, comprising a casing, a burner structure of the two-burner type positioned within the casing, a fuel supply unit comprising a tank and a generator tube secured thereto, said generator tube being slidahle longitudinally relative to one of said burners, one wall of said casing being movable to a position substantially in alignment with the bottom of the casing to receive and support said unit.

2. A stove structure comprising a casing, a burner structure of the two-burner type positioned within the casing, a fuel supply unit comprising a tank and a generator tube secured thereto. said generator tube being slidable longitudinally relative to one of said burners one wall of said casing being movable to a. position substantially parallel with the bottom of the casing to receive said fuel supply unit. and a groove formed in said unwable wa l for cooperating with a portion of said fuel supply unit for guiding the same.

3. A store structure, comprising a casing, a burner structure of the two-burner type positioned within the casing, a fuel supply unit comprising a tank and a generator tube cured tlureto. said generator tube being tie to a position substantially parallel with the bottom of the casing to receive said fuel supply unit and means on said movable wall for cooperating with a portion of the fuel supply unit to position the generator tube relative to the burner.

4. Stove construction, comprising a casing, burner structure positioned therein including a mixing chamber and a preheating member, a. fuel supply unit including a tank and a generator tube, said generator tube being movable relative to said mixing chamber and said preheating member whereby to cooperate with said preheating member for starting and with said mixing chamber for normal operation, a portion of said casing being movable outwardly to a position approximately at right angles to its normal position. said fuel supply unit being positioned completely within the stove casing in one position and being supported by said movable portion of the casing when in normal operating position.

5. Stove construction. comprising a cas ing burner structure positioned therein including a mixing chamber and a preheating member, a fuel supply unit including a tank and a generator tube, said generator tube being movable relative to said mixing chamber and said Ineheating member whereby to cooperate with said preheating member for starting and with said mixing chamber for norn'ial operation. a portion of said casing being movable outwardly to a position approximately at right angles to its normal position, said fuel supply unit being positioned and supported by said movable portion of the casing when in normal operating position, said movable portion of the casing being provided with flanges having offset portions adapted to contact with a portion of the casing whereby to position said movable wall to receive and support said fuel supply unit.

(3. Stove constriu-tion, comprising a casing, burner structure positioned therein, a fuel supply unit comprising a tank and generator tube, said generator tube being movable relative to the burner whereby the supply unit may be moved inwardly to starting position and outwardly to normal operating position, an end all of said casing being movable outwardly to a position substantially in alignment with a portion of the bottom o the casing whereby to receive and support said fuel supply unit when in normal operating position.

7. Stove construction comprising a casing, burner structure positioned therein, a fuel supply unit comprising a tank and generator tube, said generator tube being movable rel ative to the burner whereby the supply unit may be moved completely within the ca, ing when in collapsed position and exteriorly of the casing when in normal operating position. an end wall of said casing being niov able outwardly to a position substantially in alignment with a portion of the bottom of the casing whereby to receive and support said fuel supply unit when in normal operating position, and means forming a part of said casing and cooperating with said fuel supply unit for positively positioning the same in two separate positions.

8. Stove construction, comprising a fold able casing, burner structure mounted therein, a fuel supply unit comprising a tank and a generating tube, said unit being movable to two positions relative to said burner structure, said fuel supply unit in one of its positions being completely positioned within the folded up casing, one wall of said casing being pivoted adjacent its bottom and being movable outwardly whereby to receive and support said fuel supply unit in its other position.

9. Stove construction, comprising a foldable casing. burner structure mounted therein. a fuel supply unit comprising a tank and a generating tube, said generating tube being movable to two positions relative to said burner structure, said fuel supply unit in one of its positions being completely positioned within the folded up casing, one wall of said casing being movable outwardly whereby to receive and support said fuel supply unit in its other position, said casing being provided with a cover having a flange adapted to cooperate with and position said movable asing wall in normal folded posi tion.

10. Steve construction, comprising a casing, burner structure positioned therein, a movable fuel supply unit, a portion of one side wall of said casing being movable outwardly to a position for receiving and supporting said fuel supply unit, and a cover for said casing, said movable wall of the casing being held in normal folded position by said cover when the same is folded to close the casin 11. Stove construction, comprising a casing, burner structure positioned therein, a movable fuel supply unit. one of the walls of said casing being movable for receiving and supporting said fuel supply unit, a cross bar extending across the top part of the open part of the stove asing formed by said movable wall, and a cover for said casing having flanges, said cover being pivotally mounted upon the casing by pivotal connections between one end of the casing and one flange on the cover, and between said cross bar and the other flange on the cover 12. Store construction, comprising a casing, burner structure positioned therein, a movable fuel supply unit, one of the walls of said lasing being movable for receiving and supporting said fuel supply unit, a cross bar extending across the top part of the open part of the casing formed by said movable wall, a cover for said casing having flanges, said cover being pivotally mounted upon the casing by pivotal connections between one end of the casing and one flange on the cover and between said cross bar and the other flange on the cover, said movable wall of the casing being held in normal folded position by means of the flange on said cover when said cover is moved to closed position.

l3. Stove construction, comprising a casing having a recessed bottom, a burner and mixing chamber positioned on said bottom, said recessed portion having an end wall, a fuel tank movable to a position in the bottom of the casing between said end wall and a wall of said casing, leg members pivotally connected to said casing beneath said recessed bottom by a pivotal connection between the ends of the leg members and opposite walls of said casing, whereby said legs will be completely folded within said recess and one of said legs will contact with said end wall when unfolded.

14. Stove construction, comprising a cas ing having a recessed bottom, a burner positioned on said bottom, said recessed portion having end walls, a fuel tank adapted to be positioned in the space bet ween one of said end walls and a wall of said "asing and having a generator tube positioned above srf l burner, leg members pivotally connected to said casing by a pivotal connection between the ends of the leg members and opposite walls of said casing whereby said legs will be completely folded within said recess, said legs being movable to a position outside the recess for supporting the casing and adapted to contact with the walls of said recess for limiting their outward movement.

15. Stove construction, comprising a casing, the bottom thereof being recessed, burner structure positioned on the top of said recessed portion, a fuel supply unit including a tank and generator tube, said tank being positioned between an end wall of said recess and a wall of said casing and said tube being slidable in a plane above said burner strum ture, and leg members pivotally mounted and foldable within said recess and movable to an outward position in contact with end walls of said recess for supporting said casing.

16. Stove construction, comprising a casing having two side walls and two end walls the bottom of said casing being recessed between the two end walls. a burner positioned within the casing, a movable fuel supplv unit including a tank, one of the end walls or said casing being movable outwardly for receiving and supporting said fuel supply unit, said fuel supply unit being movable to a position within the casing between the end wall of said recessed portion and said movable wall when folded up, and leg members posi tioned within said recessed portion and piv- 30 otally mounted to the said walls of said casing whereby the legs when in folded up position will be positioned between the plane of the bottom of the casing and the top thereof. In testimony whereof I aflix my signature.

JAMES IRONSIDE.

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