US759822A - Oil-burner. - Google Patents

Description

No. 759,822. PATENTED MAY 10, 1904.

D. H. MOSTELLER.

OIL BURNER.

APPLIUATION rznnn JUNE 12. 1903.

N0 MODEL.

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, UNITED STATES Patented May 10, 1904.

PATENT OEEIcE.

DOSIER H. MOSTELLER, OF SAN FRANCISCO, CALIFORNIA, ASSIGNOR OF ONE-HALF TO JACOB HOEGES, OF SAN FRANCISCO, CALIFORNIA.

OIL-BURNER.

SPECIFICATION forming part of Letters Patent No. 759,822, dated May I0, 1904.

Application filed June 12, 1903. Serial No. 161,152. (No model.)

To all whom it may concern:

Be it known that I, DOSIER H. MOSTELLER, a citizen of the United States, residing at San Francisco, in the county of San Francisco and State of California, have invented certain new and useful Improvements in Oil-Burners, of which the following is aspecification.

My invention relates to improvements in oilburners, the objects of my invention being, first,to provide means whereby a steady stream of oil may be caused to issue in a substantially straight line under varying pressures; secondly,to provide means whereby the size of the stream of oil may be readily changed to suit diflerent conditions; thirdly, to provide means for freely admitting oil from the supply-pipe to the oil-burner without reducing the pressure, while at the same time excluding the entrance into the burner of small particles of dirt which would clog up the orifice through which the stream issues.

My invention therefore resides in the novel construction, combination, and arrangement of parts for above purposes hereinafter specified, and particularly pointed out in the claim.

In the accompanying drawings, Figure 1 is a side view of the burner. Fig. 2 is a longitudinal section of the same. Fig. 3 is a perspective view of the disk containing the discharge-orifice detached.

Referring to the drawings, 1 represents the oil-supply pipe screwed into a casting 2, in which is also screwed a tube 3, forming a reservoir for the oil. On the end of said tube 3 is screwed a cap 4, having a central aperture 5, and within said cap is inserted a disk 6, pressed against said cap by the abutting end of the tube 3 and containing an orifice 7 for the discharge of the oil. It is found that by this ar rangement of the straight tube 3 of comparatively large diameter and the flat disk 6 having a narrow orifice a steady stream of oil is discharged in a substantially straight line, which will maintain its horizontal or rectilinear direction even under pressures of oil varying considerably. The arrangement also permits 0t readily changing the size of the stream of oil, for the disk is very easily removed and replaced by one having an oriiiee larger or smaller, as may be desired. The valve-stem 8 5 has a screw-threaded engagement with said casting, as shown at 9, and its end is wide and frusto-conical in form, as shown at 10, and fits within the similarly-shaped seat 11. The object in making the end of the valve 10 comparatively wide and frusto-conical, as shown, a is to permit of the oil to iiow freely into the tube 3 without aiiording such a wide entrance for the oil as would admit also particles oi dirt. I-Ieretofore, so far as my knowledge eX- tends, needle-valves for the admission of liquid have been made pointed at their ends, so that the seat in which they fitted was comparatively narrow and the hollow conical stream of liquid passing around the valve wasquite narrow. The consequence was that in order to admit of oil flowing in without checking the pressure it was necessary for the distance of the valve from its seat to be so large that particles of foreign matter would be admitted which could not pass through the dischargeorifice.

It will readily be seen that with the present construction by making the valve 10 comparatively wide and the seat also wide the distance between the side of the valve and the side of the seat need not be greater than the diameter of the orifice 7, so that all particles which would not pass through said orifice cannot obtain admission to the tube 3, while at the same time the pressure is not reduced. appreciably, because the extent of the ringlike stream of oil passing the valve 10 permits of the oil flowing into the tube 3 with suflicient freedom not to materially reduce the pressure. For instance, suppose the diameter of the oriliee 7 is one-hundredth of an inch and the width or the valve 10 is three-eighths of an inch, which makes the circumference about teneigl1ths of an inch, it will readily be seen that the stream of oil which passes through the valve 10 is about one thousand times as large as that passing through the orifice 7. The velocity of flow will therefore be so small at the valve 10, compared with the velocity through the orifice 7, that the pressure will not be materially reduced. Nevertheless the valve 10 will be so close to its seat that all particles Will be excluded which could not pass through the orifice 7. There is therefore now no danger of clogging up said orifice 7 An important feature of this invention consists in the arrangement of the valve 10, which is directed opposite to the flow of the liquid.

By this construction the valve is made selfcleaning, for the closing of the valve tends to thrust out any particles of grit or dirt Which may have lodged at the entrance of the annular passage around the Valve.

I claim An oil-burner comprising a horizontal tube of large diameter comparatively With the outlet, thereby forming a reservoir for oil, a thin flat disk and a cap for pressing the same against the end of the tube to close the tube except for an orifice, said disk having a central orifice of small but uniform diameter, and a valve for admitting oil, said valve and its seat being frusto-eonical in form and of sufiicient Width to furnish an annular entrance-passage of no greater Width than the orifice but of sufiicicnt peripheral extent to admit the oil freely and Without materially reducing the pressure, said valve tapering in the opposite direction to the flow of the oil, whereby the oil is caused to floW out in a straight line under pressure, substantially as described.

In Witness whereof I have hereunto set my hand in the presence of tWo subscribing Witnesses.

DOSIER H. MOSTELLER.

Witnesses:

FRANcIs M. RIeI-IT, M. STUART.

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