US1475050A - Burner for liquid fuel - Google Patents

Description

2 Sheets-Sheet E. CLEARY BURNER FOR LIQUID FUEL Filed Jan. :3,

Nov. 20 1923.

Nov. 20, i923. y ,475,@50

E. CLEARY BURNER FOR LIQUID FUEL Filed Jan. 3. 1923 2 Sheets-Sheet 2 EPatented Nov. 2U, i923.

@NEED STATES@ y intenso garant erstes.,

EDWIN CLEARY, nncnAsnn, LATE or LONDON, ENGLAND; BY ALFRED nU'ronrsoN,

ADMINISTRATOR, or Lennon, ENGLAND.

BURNER non LiQUrn sont.

Application filed January 3, 1923. Serial No. 610,543.

To all whom it may concern.' l Be it known that EDWIN CLEARY, deceased, late a citizen of the United Statesoof America, of London, England, has invented 5 a new and useful improved Burner for Liquid Fuel, of which the following is ak specilication.

This invention relates to a modilied form of the burner for liquid fuel described in the specification of Letters Patent No. 1,381,080, and is designed to enable such burner to be used for heating inverted inoandescent mantles.

According to this invention the burner comprises a. heat conducting plate that is heated at its underside by the burner properl and has extending from its underside a vertical gauze illed tube, to the lower end of which the liquid fuel is admitted andV through which extends the stem of a combined priclrer and valve that controls the delivery of the fuel vapour from the upper end of the gauze filled tube to the nozzle or nipple from which a jet of vapour passes into the injector tube, such injector tube being arranged on the upper side of the heatconducting plate.

In the accompanying drawing, I have shown how the Said invention can be conveniently and advantageously carried into practice. In these drawings:-

Figure l is a side elevation and Figure 2 a vertical central section of a burner constructed according to the invention. Y

Figure 3 is a vertical central section illustrating a modification.

A is the heat-conducting plate, intothe lower side of which there is secured a tube B to receive a tubular filling of wire gauze C. Through the centre of the wire gauze there extends the stem D of a combined valve and pricker E, which engages in the bore of the nozzle F, that is-screwed into a socket on the upper side of the plate A.

In the burner shown in Figures l and 2, the lower part of the valve stem D is provided With a screw thread G which engages with a corresponding screw thread in the inner part of a stuiling box H through which the valve stem D extends to the exterior. By providing the valve stem D with an operating handle J, it can be turned so as to open and close the passage through the nozzle F by means of the needle E and the conical valve E below such needle. The lower end of the vertical tube B ismounted A on a bracket K provided with a screw threaded tubular piece L adapted to screw into the inlet of the fuel container, the bore of such tube communicating with the interior space of the tube B through a passage M. The piece L may have a tubular extension, or may lit into the mouth of a tube extending to the bottom of a liquid Vfuel container in the upper part of which an air pressure is maintained in a well knownmanner.

On the upperside of the heat conducting plate A. there is mounted the U-shaped combned injector tube and lmixing chamber, one end part N of which is made bulbous and provided with one or more air inlets O. O. This end iits over the socket of the nozzle F and communicates through the vertical tube N with the other limb P of the inverted U-tube, the lower end of which is drawn down on to the top of the plate A by means of screw threads on the tubular mixing chamber proper Q which is screwed in from the underside of the plate A and is made with a collar or flange Q for bearing against such plate. The lower end of the tube Q is closed by a perforated plate R of nickel, wire gauze or other suitable material. 85

The plate A is further provided with a.

cylindrical downward extension S having bayonet-slots S, S to receive the projections on the supporting ring of an incandescent mantle as shown. The top of the U-tubeN, 90 P is provided with a pin or projection T to receive a. shade or reflector.

In the modification shown in Figure 3, the valve stem D is provided with a Vscrew thread l at its upper end, such screw thread engaging a corresponding screw thread in the plate A and having one or more longitudinal slots 2 to permit the passageto the nozzle F of the oil vapour from the vertical tube B. In this burner, the air-inlet for the injector-tube is made in the form of a separate piece 3 having a lateral opening 4. An annular cup 5 is arrangedV around the tubular piece L to receive methylated spirit or other suitable light hydrocarbon for use V in heating up the burner on starting.

. What I claim is l. A liquid-fuel burner for heating inverted incandescent mantles, said burner comprising a heat-conducting plate, a tuextending axially through said second tube,

a needle valve on said Spindle controlling the thoroughfare of said nipple, wire gauze packing in the space between the valve-spin-- dle and the interior wall of the tube, means for closing Huid tight the lower end of the second tube around Said spindle, an oilinlet branch at the lower end of the second tube and a U-shaped injector-tube mounted above the heat-conducting plate and connecting said mixing` chamber and said nipple and having an air inlet at the end next to the nipple.

2. A liquid fuel burner for heating inverted incandescent mantles, said burner comprising a heat-conductingr plate, a tu- 'hular mixing chamber extending downwardly from said plate and having a llame orifice in its lower part, a second tube extending downwardly from the heatconduct ing plate, an injector nipple arranged at the upper end or' the second tube and delivering into an injector-tube mounted above said heat-conducting plate, a if'alve spindle extending axially through the second tube, a needle-valve on the end of said spindle and adapted to lit the thoroughfare of Said nipple, an annular valve on said spindle adapted to coact with a valve seat at the upper end oit' the second tube, screw threads for controlling the axial movements ot the spindle, wire gauze packing in the annular space between the valve spindle and the interior wall of the tube, means tor closing fluid tight the lower end of the Second tube around the spindle, an oil-inlet branch at the lower end of the second tube and a U-shaped injector-tube mounted above the heat-conducting plate and connecting said mixing chamber and said nipple and having an air inlet at the end nextthe nipple,

London, England, 21st December 1922.

ALFRED HUTCHSON, Administrator 0 the @state 0f Ecl/wm (Hear deceased. i

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