US836403A - Vapor-stove. - Google Patents

Description

PATENTED NOV. 20, 1906.

C. J. PUFFER. VAPOR STOVE.

APPLICATION FILED JULY 6. 1904.

2 SHEETS-SHEET 1.

No. 836,403. PATENTED NOV. 20, 1906. O. J. PUFFER.

VAPOR STOVE.

APPLICATION FILED JULY 6, 1904.

2 SHEETSSHEET 2.

UNITED STATES PATENT OFFICE.

CHARLES J. PUFFER, OF AURORA, ILLINOIS, ASSIGNOR TO JOHN c.

- ROBERTS, or PEORIA, ILLINOIS.

VA POR-STOV E.

. Specification of Letters Patent.

Patented Nov. 20, 1906.

To all whom it may concern:

Be it known that I, CHARLES J L PUFFER, a citizen of the United States, residing at Au rora, in the countyof Kane and State of Illinois, have invented certain new and useful, Improvements in Vapor-Stoves; and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same.

This invention has reference-to new and useful improvements in a vapor-stove.

The invention has for its object a portable vapor-stove made of minimum size and combining with the burner and generator a gasolens-tank, an air-tank, and pressure-pump, all supported in the same structure.

The invention has for its further object a burner, the gas conduit leading thereto formed of bifurcated sections, each section provided with a jet or sin le burner for the purpose of producing a sub ame, and a gen'erator disposedbeneath the burner,.passing between the sections of the gas-conduit to adapt the subflame from the jets thereof to act upon the body of the generator.

A further object of the invention is a detachable self-adjusting needle-point for the controlling valve stem, having wings between which is arranged grooves or channels for the passage .of the gasolene and gasolenevapor. The of the needle-point serve to guide the needle-point to the orifice in the generator-tube in which the'regulating valve is carried. I

A further object of the invention is a generating-tube, a needle-point controlling valvestem operating in the tube having a reduced threaded extension which is connected to the main stem by a knuckle-joint, the threaded extension of the stem having screw conneci tion with a feed-valve'operat'ing in the genervating-tube to shut ofi against the gasolene,

means being provided for lockingthe relation of the feed-valve and controlling valve-stem.

. The invention consists, further, in various details of construction to be hereinafter more specifically described, and ointed out in the a gs forming a part 0 this specification,

in whic Figure 1 is a plan view of a gasolene-geneastem. Fig. 7 is an end view in section of the enerating-tube, showing the needle-point.

-' ig. 8 is a detached section of the coupling for the generating-tube and re lating-valve. Fig. 9 is a detail in section of t e head end of the generating-tube. I

In the drawings, like numerals of reference indicate corresponding parts throughout the figures.

The apparatus consists of the base-plate 1, and the casting 2-, supported above thobase and upon the same'i'by means of the corner posts or supports 3. The base may be of sheet-tin or sheet metal, while the top casting 2 may be of cast-iron or other suitable material, cast with the opening 4, and the grid 5, disposed above a burner, to be described. The stove is divided into two separate compartments. In one \is arranged the burner and generating devices, in the other the gasolene and compressed air receptacles. The gasolene and compressed-air containing receptacles arecarried beneath the opening 4 and the burner beneath the grid 5.

The compartments are indicated as 6 and 7 and are separated by the partition 8, and 9 denotes a plate-covering for the opening 4 to be placed above the gasolene and compressedair containing receptacles, the same being supportedupon the lips or lugs 10, cast with the top 2, as'seen in the figures;

The gasolene-tank is indicated as 11, and the air-tank as 12.-

I 13 denotes a screw-cap, by means of which ingress may be had to the tank 11, while the 'aiI tank is provided with a feed-valve 14, connected by a tube 15 With. a suitable airpump 16. s

, 17 denotes a tube connecting the air-tank with the gasolene tank in the usual way to provide pressure for the feed of the gasolene to the generator and burner, and 18 is a feedtube for the gasolene from its tank to a generating apparatus, to be described.

The burner comprises the" base-plate 19,

supported by studs of the grid 5, to which the plate 194s fastened, and the plate 19 is provided witl'ikthe central tubular opening 21 and the annular depressed body portion 22,

forming the gas-chamber of the burner.

23 denotes a cap-plate and is the burner proper, being provided with the jets 24, which tensions 28. are provided with the laterallyextended jets or burners 29, for the purpose of producing a subflame on the generator-tube,

.to be described, and the walls of the extensions 28 are lined with some suitable perforated material 30 to hold the pressure back and prevent the entire flame of the burner passing out of the jets and diffuse it in such a way that only a flame sufficient to keep the generator hot escapes through these jets. Connected with the gas-conduit 27 is a mixer 31 for the volatile vapor and air, the open end of which is in close proximity to the end of the generator-tube 32, which lies beneath the burner, the opening 21 therethrough and between the jets 29, where the subflame is produced for constantly heating the tube 32. The end of the tube passes through a shield 33 extending from the gas-conduit to the un der side of the burner, and prevents the ignition of the volatile vapor as it issues from the tube 32, which would be the case if the shield was not there, owing to the disposition of the subflame-jets, as described. The heat and also the flame from the 'ets of the gas-conduit ,while it acts on t e generating tube also passes up through the openings 21 and '25 of the burner, so that it may be utilized, as

well as the flame from the burner proper.

' The generating-tube 32 has its forward end supported in the shield 33, its rear or outer end screwed into a coupling 34, and the coupling, bymeans of a stud 35, is attached to a lip or extension 36 of the top plate 2. The coupling is further provided with a threaded tubular extension 37, with which the end of the tube 18 is so connected as to prevent leakage at this point. The coupling is provided with portions in front and rear of its inlet 37 the forward end having attached thereto the tube 32, as shown in Fig. 5, and its opposite end has the conical-shaped bore, as at 38, the remainder thereof threaded and the threaded portion engaged by a tubular feed-valve 39,

which has a conical or tapered end 40 to coincide with the tapered or conical portion of the coupling 34, and through the wall of the generator, as will be clearly seen in Fig. 5.-

The feed-valve is provided with the fingerwheel 42 to facilitate the closing and opening of the feed-valve.

The controlling-valve is an elongated stem,

(designated as 43,) dis osed' in the tube 32 somewhat as shown in ig. 5 and is provided with the helical flange or screw-flange 44, forming'a helical channel 45 around the stem 43, between the inner wall of the tube and the body of the stem, the flange 44 engaging with the wall of the tube. The formation of the channel 45 is for the passage of the gasolene and insures it being kept in motion within the tube and provides for the discharge of all extraneous substance in the gasolene from the tube. At 46 a reduced threaded stem 47 is connected, by means of a knucklejoint, with the end of the stem 43, the stem 47 extending through the coupling 34 and having a threaded en agement with the tubular feed-val ve 39, t e end of the stem 47 projecting beyond the wheel 42 and having connected therewith the adjusting and looking nut 48. The end of the stem 47 is provided with a recess or notch 49 to adapt its longitudinal adjustment in the val ve-stem 39 by the use of a screw-driver, and the nut 48 is for locking the relative positions of stem and feed-valve, as is apparent. The use of the knuckle-joint in the stem 43 permits the stem to wabble and adjust itself to any unevenness or irregularities in the longitudinal line of its tube and parts and prevents binding either in its use or adjustment. Between the end of the stem 43, where the knucklejoint is located, and at the end of the tube in the coupling 1 have provided a gauze packing or screen 50, which surrounds the stem 47 and is adapted to retard the-movement of the gasolene to insure a uniform feed of the same to the mixer.

The stem 43 at its forward end is provided with a needle-point adapted to coact with a discharge-orifice in the end of the tube 32. This needle-point (indicated as 51) is selfadjustingand detachable in the head end of the stem 43. The needle-point consists of the tapered point 52, operating in a tapered orifice 53 of the tube 43 and the central body portion of the needle-point is provided with a series of radial wings or guides 54, between which is arranged longitudinal channels or grooves 55, serving as aidchannels for the member or nut 56, adapted to have a screw adapts the forward portionof the needlepoint to wabble or have oscillatory movement in several directions, the object of whlch is to (permit the point to have suilicient play to fin the center of the orifice in the tube 32. It is to be also noted that in the manner of securing the needle-point to the .stcm rotary motion imparted to the stem will not be imparted to the needle-point, and thus there s obv1ated the making large or boring out of the discharge-orifice in the tube by reason of the working in and out of the needle-point, and thus insuring a perfect closure when the needle-point is in the orifice. The needle-point is capable of having longitudinal movement imparted to it, but not IOtitlYhlOtiOIl. The head end of the tube 32 is provided with a socket or reduced tubular portion 59, communicating with the discharge-orifice thereof, and serves as a seat for the wings or blades 54 of the needle-point. In the adjustment of the stem 43 and itsneedie-point the wings in their engagement with the wall of the reduced portion 59 of the tube -will serve as a guide for directing the point 52 of the needle centrally in the orifice 53 of the tube. This form of needle-point insures the gasolene or gasolene vapor being discharged from the generating tube in a straight line and not at an angle, as it is found in practice that if the gasolene or vapor in it's discharge contacts with a metallic surface it chills it and destroys its good qualities and does not make a perfect mixture with the air and produces a poor quality of gas, which is to be avoided in this class of device.

To adjust the length of the stem 43 so that when the valve-stem 39 has closed the inletopening 41 the needle-point 52 will have also closed the orifice in the generating-tube. The stem 47, as has been indicated, will be adjusted in the member 39, when the nut 48 will be locked on the stem 47 against the wheel 42, and thus lock the relative positions of the two valves, all of which, it is believed, is understood. There is provided on the outer end of the coupling 34 and surrounding the controlling valve-stem 39 a packing-nut 61 and suitable packin (indicated as 62.)

The arrangement 0 the apparatus with the partition or dividing-wall 8 is to protect the gasolene-can 11 from the extreme heat produced by the burner when in operation,.

sufficient air-space being left between the parizltlon and the gasolene-can to keep it coo If it is desired to employ the within apparatus as a gasenerating dev ce for lighting purposes, it will be found very serviceable. In this event the cap-plate 23 may or may not be used, and the construction of the outlet from the gas-conduit 27 may or may not be reduced in size and a gas-conducting pipe substituted therefor (shown in dotted lines in Fig. 3 of the drawings) leading to one or more incandescent fixtures or other suitable lights. From the above it is obvious that other suitable changes may be made and details and modifications resorted to without affecting the principle and scope of the invention.

Having thus fully described my inventlon, what I claim, and desire to secure by Letters Patent of the United States, is

1. In a device of the class described, the combination of a burner, a generating-tube disposed beneath the burner, a mixer 1n proximity to the end of the generator, a gas-conduit leading from the mixer to the burner and provided between the. mixer and the burner with vertically-extending bifurcated portions having horizontally-extending jets disposed upon opposite sides. of the generator and producing a subflame adapted to act upon the generator, substantially as speclfied.

2. In a device of the class described, the combination of agenerating-tube having a discharge-orifice and the tubular portion 59, a stem operating in the tube, a needle-point having a diminished outer end adapted for closing the orifice in the tube, the body of the needle-pointhaving radial wings extending laterally beyond said diminished end between which are arranged grooves for the passage of gasolene or vapor and the laterally-extending wings of the needle-point fitting within said tubular portion 59 and adapted to guide the needle-point into the orifice of the tube, substantially as specified.

3. In combination with a generating-tube having the socket 59 and the discharge-orifice 53, of a 'stem operating in the tube, a needle-point having a detachable relation with the stem and adapted to coact with the orifice in the tube, the body of the needlepoint provided with radial portions and coacting with the wall of the socket 59 for guidin the needle-point into the orifice of the tu e, and channel-ways extending longitudinally between the radial portions serving as a passage for the gasoleneor vapor, substantially as specified.

4. In a device of the class described, a coupling provided with an inlet into the body thereof, a generating-tube connected. with 'the coupling and having a discharge-orifice, a

tubular feed-valve adapted for closing the inlet in the coupling, a controlling valve-stem operating in the tube, a detachable and nonrotating needle-point of the stem coacting with the orifice in the tube, a threaded extension of the stern adapted to have connection with the feed-valve and means for adjusting and locking the relative positions of the feedvalve and stem carrying the needle-point,

substantially as specified.

5. In a device of the class described, the combination of a generating-tube provided with a discharge-orifice, a coupling to which the inner end of the tube is connected, the same provided with a feed-opening for feeding gasolene to the tube, a stem operating in the tube having a needle-point coacting with the orifice in the tube, a controlling valvestem for controlling the feed-opening in the coupling, and a threaded extension having a knuckle-joint with the needle-point stem and an adjustable connection with the c0ntrolling valve-stem, substantially for the purposes specified.

6. In a device of the class described, the

combination of a coupling having a longitudinal opening, a ortion of the wall thereof being tapered an a transverse opening leading from the tapered portion of the coupling discharge-orifice therein, a reduced stem having a knuckle-joint connection with the end of the main stem and adapted to have a threaded connectionv with the feed valvestem, means for adjusting the relative' position of the feed valve-stem and the needlepoint stem, and suitable packing around the reduced stem between the main body of the coupling and the end of the main stem which carries the needle-point, substantially for the purposes specified. In testimony whereof I affix my signature in presence of two Witnesses.

CHARLES J. PUFFER. .Witnesses:

ELLA M. WESTORN, C. L. WIDEMAN. v

Images