US 772016 A
Description (OCR text may contain errors)
PATENTED OCT. ll, 1904. B. C. WOODFORD. HYDROCARBON BURNER.
APPLICATION FILED NOV.27, 1903.
* EVE/#a y 5% i@ Patented October 11, 1904.
UNITED STATES PATENT OFFICE.
BRONSON C. IVOODFORD, OF HOLYOKE, MASSACHUSETTS.-
SPECIFICATION forming part of Letters Patent No. 772,016, dated October 11, 1904.
Application filed November 27, 1903. Serial No. 182,833. (No model.)
To all whom, it wtcty concern:
Be it known that I, BRONSON C. WOODFORD, a citizen of the United States, residing at Holyoke, in the county of Hampden, in the State of Massachusetts, have invented certain new and useful Improvements in Hydrocarbon- Burners, of which the following is :a specification.
My invention relates to improvements in hydrocarbon-burners; and the main object of my improvement is to make the burner automatic.
In the accompanying drawings, Figure 1 is a central longitudinal section of my burner with some of the parts in elevation. Fig. 2 is a detached end view or front elevation of a fish-tail nozzle for use with my burner.
A designates the casing or shell, having an inlet 3 and boss 4., to which boss an oil-supply pipe 5 may be connected. The said casing also has a secondary inlet 6 and boss 7 for connecting the supplyepipe 8 for steam or other fluid for commingling with bthe oil. The interior of the casing A is cylindrical, but has different portions in the length thereof on different diameters. A delivery-head on plug 9 is screwed up against a shoulder 10 in the outer end of the casing, the said plug having at its inner end a central stem 11, with apointed end 12 to act as a valve. A short portion 13 of this stem adjacent to the pointed end is of a reduced diameter, and extending from the periphery of the stem at the said reduced portion to the body of the delivery-head there is an oil-passage 14. The outer end of the head 9 is bored and threaded on two different diameters to receive, respectively, the outer nozzle 15 and inner nozzle 16, the latter communicating with the oil-passage 14. in the stem 11, while the outer nozzle 15 communicates, by the passage 16, with the annular chamber 17, that'surrounds the stem 11 at a point adjacent to the secondary or steam-supply inlet 6. The inner nozzle for the oil screws up against a shoulder, while the outer nozzle may be screwed in more or less, as may be desired, to adjust the relative position of these nozzles to each other at their effluent ends. An ordinary check-nut 18 is provided for holding the outer nozzle in its adjusted position. The other end and body of the casing is mainly filled by a iioating slide 19, that is fitted at each end to the different inner diameters of the said casing, although a portion of the said slide adjacent to the oil-inlet 3 is smaller than the surroundinginner wall of the casing, so as to form the connecting annular chamber 20, that communicates with the diametrical passage 21, ad-
jacent to the valve 22 and its seat. The valve 22 is a screw-pin entering a central bore in the floating slide, and the outer end ofthe said pin is provided with a handle 23, while the outer end of the slide is provided with a handle 24, so that the slide may be held against rotation while the valve is turned by its handle to adjust the valve relatively to its seat for leaving it open more or less, as may be desired. The otherend of the slide is bored centrally to fit the stem 11 and has a connecting-passage 25 between the two valves 22 and 12 of a smaller bore than that for the said valves, so that a valve-seat is formed at cach end of the connecting-passage. Fitting the cylindrical stem 11 to the bore of the slide 19 forms a closure of the steam-chamber 17 on that side to which the said slide is presented. In all cases where .the word "steam7 is herein used air or other iuid under pressure is considered the equivalent thereof.
The outer nozzle 15 is provided with a centrally-arranged orifice, preferably round, for throwing a central stream or spray, and the exterior of said nozzle may be of any ordinary form. I prefer, however, in some cascs to provide its outer end with a threaded portion 26 for the application when desired of an additional nozzle for changing the form of the discharge. I have shown an additional nozzle 27 as thus applied, the said nozzle being of a flattened form with a slit-like orifice 30, as shown in Fig. 2, for delivering a flattened stream or spray, making what is sometimes designated as a fish tail burner. The
burner can be used either with or without an additional nozzle, as may be desired.
The main and secondary supply-pipes 5 and 8 may be provided with any suitable cut-off valves 28, and I prefer to connect the said The oil and the steam are both delivered or' designed to be delivered to their respective inlets at predetermined pressures. IV ith the valve 28 in the by-pass 29 closed and both pipes delivering properly the opposing' faces of the slide 19 as presented to the respective annular chambers 2() and 17 are so related to the steam and oil pressure that the pressure of the steam in the annular chamber 17 will overbalance the opposing pressure of the oil in the annular chamber 20, and thereby force the floating slide which carries the seat for the valve 12 away from the said valve, moving the parts from their closed position, as represented in the drawings, to their open 'position, so that oil may flow in through the passage 25, (the valve 22 having been adjusted to admit the desired quantity of oil to the y said passage 25,) past the valve 12, through passage 14 to and through the inner nozzle 16. At the same time steam (or air) will flow in from the annular chamber 17 to and through the outer nozzle 15, and the oil and steam will mix at the junction of the said two nozzles in the outer end of the outer nozzle and the commingled oil and steam be discharged in the usual manner from the said outer nozzle 15 directly into the iire or, if desired, into the additional nozzle 27 and then into the ir'e. The How will continue as long as the supplies are kept up at the proper pressures; but if the pressure of the steam fails or falls materially below its intended pressure there is no longer any counterbalaneing of or resistance to the oil-pressure on the slide in the annular chamber 20, and hence the slide will automatically move to the position shown in the drawings and close the valve 12, so as also to cut off the supply of oil and stop the burner. The valve 12 will be automatically opened whenever there is the proper steam-pressure in the annular chamber 17.
In order that oil may be fed to and through the burner independently of the secondary supply for any desired purpose-as, for eX- ample, to generate steam from the heat of the burner when the steam is supplied from a coil of pipe over the lire of the burner-the valve 28 in the secondary supply-pipe 8 may be closed and the valve 28 in the by-pass opened, so that oil may '.iow to the burner through the secondary inlet 6, and the burner may be used for oil alone until such time as the proper steam-pressure is p rodueed. The valve 28 in the by-pass may then be closed and the Valve 28 in the secondary supply-pipe opened, when the burner will adjust itself automatically to deliver the commingled oil and steam, as before described.
It is apparent that some changes from the speeilic construction herein disclosed may be made, and therefore I do not wish to be understcod as limiting myself tothe precise form of construction shown and described, butdesire the liberty to make such changes in working my invention as may fairly come within the spirit and scope of the same.
I claim as my invention- 1. In a hydroearbon-burner, the combination of a casing having two inlets with aslide having an oil-supply passage and having also opposing faces, and a head at the delivery end of the said casing, having an oil-passage forming a continuation of the oil-supply passage of the said slide, the said parts forming within the casing two annular chambers inside of the said casing into which chambers the said two inlets deliver, the said opposing faces of the said slide being presented to the said chambers and the said slide and head having within the said oil-passage the one a valveseat and the other a valve, the same being arranged to open and close the oil-passage within the said slide by the movement of the said slide.
2. rIhe combination of the casing with a delivery-head having a delivery-stem with an oil-passage therethrough, and a slide arranged within the said casing, the said parts forming within the said easing a chamber for oil and another chamber for steam, the said slide having at one end a bore litted to the said delivery-stem for forming a closure of the said steam-chamber on that side to which the said slide is presented, the said head and stem having the one a valve and the other a valve-seat, the said slide also having a passage leading to the said valve and opposing pressure-faces presented respectively to the said two chambers.
8. In a hydrocarbon burner, having an outer nozzle for delivering mixed oil and steam, the combination of a casing having a ehambered interior with a slide within'the said easing forming two separate chambers for oil and steam, the said slide having an oilpassage therethrough and opposing faces presented to the said chambers, a valve operated by the movement of the said slide and an inclosed oil-passage leading from the said valve to the said delivery-nozzle.
4. In a hydrocarbon-burner, the combination of a casing having a ehambered interior, with a slide within the said casing forming separate chambers for steam and oil and having a passage for oil therethrough, a tlXed valve in the said casing for opening' and closing the outlet to the oil-passage through the slide, a head at the delivery end of the casing, concentric tubes mounted in the said head with their ends forming an inner nozzle for oil and an outer nozzle for mixed steam and oil, an inelosed oil-passage leading from the said iixed valve to the inner one of the said concentric tubes, and a separate passage leading from the steam-chamber to the outer one of the said concentric tubes, whereby, when TOO IIO
the oil-passage through the slideis opened by the said slide and valve, the oil may i'low freely from the said valve to the said inner one of the concentric tubes but cannot enter the steam-chamber.
5. In a hydrocarbon-burner, the combination of a casing having a chambered interior with a slide within the said casingforming two separate chambers for steam and oil under different pressures, the said slide having an oil-passage therethrough and opposing pressure-faces of differing areas inversely proportionate to the respective pressures upon the said faces, and a valve for the `oil-chamber operated by the movements of the said slide to reduce the iiow of oil through the oilpassage in the said slide when the steam falls below normal pressure, and to cut otl the iiow of oil whenever the steam-pressure ceases.
6. In a hydrocarbon-burner, the combination of a casing having` a chambered interior with a slide within the said casing forming two separate chambers for steam and oil, the said slide having a passage for oil therethrough with a valve-seat at its delivery end, a fixed valveA in the casing acting with the said slide to open and close the said oil-passage, and means operated from the exterior of the casing for varying the size of the inlet to the said oil-passage through the said slide, substantially as described.
7 In a hydrocarbon-burner, the combination of a casing having a =charnbered interior with a slide arranged therein forming two separate chambers for oil and steam, the said slide having an oil-passage therethrough and opposing pressure-faces, the said faces being presented respectively to the said chambers, a valve at the delivery end of the said oilpassage through the slide for controlling the iow of oil by the movements of the said slide, and another valve arranged to be operated from the exterior for regulating the size of the said oil-passage at its influent end.
BRONSON C. WOODFORD.
THEO. L. LA FRANCE, WM. C. WooDFoRD.