US922502A - Gas-burner. - Google Patents

Description

P. am. PARK;

GAS BURNER.

APPLIUATION FILED MAY 11, 1908.

Patented May 25, 1909.

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FREDERICK PARK AND RAVEN PARK, OF KENDAL, ENGLAND.

GAS-BURNER.

Specification of Letters Patent.

Patented May 25, 1909.

Application filed May 11, 1908. Serial No. 432,313.

T 0 all whom it may concern.

Be it known that we, FREDERICK PARK and RAVEN PARK, of Kendal, lVestmoreland, England, subjects of Great Britain, have invented certain new and useful Improvements in Gas-Burners, of which the follow ing is a specification.

This invention relates to improvements in burners adapted for burning light or heavy oils, and while it may be used for burning the lighter oils or spirits such as petrol or the like, it is especially applicable for burning paraffin.

In the present types of burner the flame of the burning jet is utilized, when the burner is ignited, to heat the oil, say in a coil or otherwise, so as to gasify it and expel it under pressure through a jet which is disposed after the manner of an ordinary Bunsen burner so as to induce a mixture of air and gas. This mixture is then sprayed or distributed through a nozzle which usually takes the form of a plate or tube perforated or drilled with a number of fine holes, or a plate provided with a number of jet burners. Both of these forms are disadvantageous inasmuch as the burner is very apt to light back, and unsatisfactory combustion results owing to there being no very fine division of the issuing gas through the jets.

The essential feature of our invention consists in the provision of a wire gauze screen to disseminate the gas mixture into a multitude of fine jets, and in inclosing the screen between perforated strengthening plates or tubes.

We have illustrated one arrangement of our invention in the accompanying drawings, in which,

Figure 1. is a sectional elevation through a burner fitted with our improved gauze screen. Fig. 2. beinga plan.

WVhen the burner is in the form, as shown in the drawings, of a fiat ended nozzle 1, we fit the nozzle with a wire gauze diaphragm or screen 2, say of a mesh of about 120 to the inch, or finer mesh if desired, and inclose this screen between two metallic strengthening plates 3 and 4 provided with a series of comparatively large perforations or drilled holes 5. The et 6 for the gasified oil may be disposed after the manner of a Bunsen burner to induce a flow of air through the orifices 7. The holes 5 in the strengthening plates 3 and 4 are disposed so as to register leaving portions of the gauze screen exposed. The mixture of gas issuing from the jet 6 with the induced air from the orifices 7 is directed through this screen 2, the flame being ignited above the surface of the outer metallic plate 3, and we find that by such an arrangement the flame is kept from contact with the gauze by a distance at least equal to the thickness of the plate 3. The gauze is thus protected against overheating and consequent deterioration. The plates 3 and 4 inclosing the gauze are preferably secured together and to the body of the nozzle 1 by screws 8 located at their circumference. By thus arranging a very fine gauze screen to disseminate the gas mixture a better combustion is achieved owing to the moresatisfactory intermixture of gas and air and the more even distribution of the issuing mixture over the burner surface, while such a construction entirely eliminates any tendency to fire back.

Claim.

The improved oil burner comprising a gas jet; a burner casing or nozzle surrounding said jet; a series of air inlets in the casing wall disposed below the mouth of said jet a wire gauze screen affixed across the end. of the casing and in front of the jet; inner and outer strengthening plates inclosing the gauze screen and provided with a series of registering holes, substantially as described.

In witness whereof we have hereunto set our hands in presence of two witnesses.

FREDERICK PARK. RAVEN PARK. Witnesses:

A. J. DAVIES, W. Soorr.

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