US1276795A - Camp-stove. - Google Patents

Description

W. C. NELSON.

CAMP STOVE.

APPLICATION FILED FEB. 20, I918.

Patented Aug. 27, 1918.

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W. C. NELSON.

CAMP STOVE.

APPLICATION FILED FEB. 20 I918.

Patented Aug. 27, 1918.

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WILLOUGnBY c. NELSON, or OMAHA, NEBRASKA,1ASSIGNOR or bun-HALF 'ro v o. w. GONKLING, or 'IEKAMAH, NEBRASKA.

' CAMP-STOVE;

Specification of Letters Batent. PatentedAug, 27, 1918,

Application filed February 20, 1918. Serial No. 218,322.

To all whom it may concern: u

Be it known that I, WILLOUGHBYC. 'NEL- soN, a citizen of the United States, residing at Omaha, in the county of Douglas and State of Nebraska, haveinvented certain new and useful Improvements in Camp- Stoves, of which the following is a specification.

" that manufacture may be economical andpractical and that durability may be'attained.

With the foregoing objects in view and others to be mentioned hereinafter, the in-.

7 the receptacle, the vertical. flange a .of the and a lid-7.

vention presents a'novel construction,-com-.- bination and arrangement of parts as de-- scribed herein and claimed, and-as illus: trated in' the V accompanying drawing, wherein,- g

'F'gurel is a'perspective view ofthe de-. vice, the cover and grate'beingelevated. Fig. 2 is a plan view of the primer, gas burner and gas generator, the control rod. for the gas feed being in section. V Fig. 3 is; a view of the stove in longitudinal section, a I part of the receptaclebeing also shown, with the lid and grate lowered. Fig. 4 is a transverse section'on line 44 of Fig. 3. 'Fig. 5- is a broken away detail relating to Fig. 2.

Referring now to the drawing for a more particular description, I provide a recepf. tacle :0, preferably rectangular inplan, having an upright partition 6 near. its rear end A grate is indicated at 7. and, preferably, it is supported upon a ledge 8, this ledge being disposed near the top of ledge being suitably secured to the upright partition, the grate preferably being formed by use of a metallic rod bent to provide a plurality of loops disposed in a single plane and having its ends bent outwardlyfor engaging in the socket members 9, which-are secured to said ledge, so that the grate may have swlnglng movements in an arc of a .half circle or at least of 90 degrees, a ledge 10 being provided and-having a flange b secured to the front end ofthe receptacle, sothatthe grate may be adequately supported when disposed in a horizontal position, for holdingcookingutensils. Th1s 1nvent1on relates to an'improvement The stove consists, in part, of a casting 11 provided near its top with a gas chamber 12 "preferably of disk form in plan, said 'castlng being provided with a foraminous cap 0 which is formedconcavdconvex at its middle" to provide a channel 13. opening on its upper face. The casting is also pro.- vided,below the gas chamber, with a mix ing-chamber 14, and with a recess 15, open at its top, to operate as a priming-pan, said recess being disposed in a plane below chamber 12 and forwardly of chamber14.

Numeral 16 indicates an air intake port for the chamber 14, said port being nearthe priming-pan and under control of a valve 17 and by means of a port 18 the chamber 14 communicates with chamber 12, said last named port [being comparatively remote from the airdntake port 16.

A second mixing-chamber 19 is provided,

this being disposed below the gas chamber 12 and below a disk 20, saiddisk being pro-Q vlded with apertures 65' and being mounted upon annular-ledgefor ridge 21, said ridge preferably being a part of the casting indicated at 23 having a lengthinexcess of thediameter of thegas chamber. It is dis posed'within and substantially fills the channel 13 and, subject to a strainer 24, is in communication with a conduit 25 for liquid fuel, said conduit traversing the upright partition 6 for conducting liquid fuel from thetank 26, subj set to thecontrol of a valve h, said tank being provided witha suitable air valve 27, so that by use of a conventional air pump (not shown) the liquid may be conducted, as may be required, to the generator 23, by air pressure. 1

r The front end portion of the gas genera- .tor 23 projects downwardly and is provided at its terminal with a gas container 28 formed circular in plan and elliptical in cross-section, said containerbei'ng disposed.

above, with its longitudinal axis in line with the axis of the recess 15, and having a nozwith a projection or 'fi11ger33, best shown in Fig. 5, engaging in a notch 34 which is formed in the fiat portion 35 with which the needle is provided.

Numeral 36 indicates a vertical islot formed in the wall a of the casting, in coinmunication' with the chambers 19 and 12, and a plurality of passageways 37 are pro vided which communicate with the slot and the recess 15, closely adjacent to 'and'below thenozzle 29. f

Amongsome of the advantages to be derived by use of the invention, it may be stated that the device is readily portable, the

lid 7 being hingeably mounted and provided with fastening devices, as shown in the drawing, the diskQO forming a partition between the second mixing-chamber 19 and the gas chamber '12, being removably secured upon the seat'21 by means'of suit-' able keepers 7a. On account of the provision lof the slot36 a'i'i'dpa'ssag'eways 37 combustion [gasp wilroecurai dwvjlr -be nia'inf I rained in prqximitytc thaepart of; the "iifoz 1 lerewithin' the" recess 155to=aei1itite gen ratim'ergas': "By aiseof the rotatabljei onuntied--32;- an adjustment maybe; mag-deaf f supply of gas fromtheeomain f 2610; the mixing-*- chamber" 14, the rod 30' having bear ings in the projection l softhat itwfill be so naniraifiedfrn line ith orifice f the 1 nozzle. It j will be appreciated that the upply of;l'iqiiidfiuel,"under pressure; will "n't'er n18 asgnerawig ea byp ssin "the 5 channel ,13 is, ntage for; mounting jth'ere'in of .thegas*gen' if niap eration; the arve rbe g' eased, a,

a ifie t ant W i t i fi l i ingx 'an" for generat ngf'thegasg b we de e ded manage;

or rposejuntil baa-snared "a degreesrheae arr gaineaeaum n ttained that as described, the parts are arranged to advantage for permitting. the heat to be communicated to the container 28 and tube 23, for generating the gas. Upon passing the orifice f, the gas Will be come readily mixed with air, since the port 16 is disposed below said orifice, and the fuel mixture, after passing the port '18 to the chamber 19, will become more thoroughly mixed than before, since the apertured disk 20 operates as a bafile-plate. After an "operator causes the fuel mixture to be ignited at the interstices of the burnercap c,=the gas will thereafter be generated in the tube 23, independently of any liquid fuel in the priming-pan However, ignit-ion of gas supplied by'the passageways 37 Will continue, this feature being of great advantage for maintaining a desired .c legree of heat for the nozzle 29. It will be understood, of course, that the wall e'of the casting will attain a high degree of heat, during operation, this beingan advantage. for causing the gas to becomeiheated'while-mow ing to the discharge passageways 37. During operation, the greatest degree of heat, "of course, will occur-at the upper and front parts of the stove, and this feature facili- "tates the movement of air through the port 16 and mixing chambers, said air supply.

moving from the lower and rear parts of the stove to enter the mixing chambers." If the supply of air causes a mixture less rich in hydrocarbons than desired, admission of air may be controlled by 'means [of the and'I makezchanges in minor details as well as changes in form size and proportion pafits asmay' be fc ndzw be ofadvantage, "the "scope or the inventionloei'ng determined "byfithe 'appended c l' a'i'filsf" provided ea g; hovej' tannin mounted 'on the casting tubul cha Qrge ained "zle, said casting being provided with passageways communicating with the gas chamber and priming receptacle, and also bemg provided with an air intake port communicating with said mixing chamber.

3. In a camp stove, the combination with a casting having a mixing chamber with an air intake and provided with a ridge above said mixing chamber, anapertured disk on said ridge to provide a second mixing chamber in communication with the first named mixing chamber, a liquid fuel tank, a gas chamber having an annular wall threaded on said ridge and having a foraminous top with a channel formed therein, a tubular member engaging in said channel in communication with the gas tank, a gas container communicating with the tubular member and having a discharge port communicating with the first named mixing chamber, means for controlling the discharge port of said gas container, and means for applying heat to said gas container.

nous wall with a channel formed therein to open on its top, and providing a lower chamber having an air intake port in its bottom and a port communicating with the upper chamber, and providing a priming receptacle disposed in a plane below the upper chamber outwardly of the lower chamber, a tank for liquid fuel, a tubular member having a conduit communicatin with the tank and disposed to substantia ly fill said channel, a container disposed above the priming receptacle in communication with the tubular member and having a discharge nozzle normally communicating with said lower chamber, a foraminous partition between the upper foraminous wall and bottom of the upper chamber, and a needle adapted to be reciprocated longitudinally for closing the orifice of the nozzle, said casting being provided with a passageway in communication with the priming receptacle and in communication with that part of the upper chamber below said foraminous partition.

In testimony whereof I have aflixed my signature in presence of two witnesses.

WILLOUGHBY C. NELSON. I

'Witnesses:

HIRAM A. Srunons, ARTHUR H. Sronens.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patentl,

' Washington, D. 0." r

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