US1589386A - Gas burner - Google Patents

Description

June 22 1926. 1,589,386

P. s. HARPER @As BURNER Filed April 1o.A 1922 @2 E 'A 53 mm of sections burning,

Patented June 1 22, 1926.

-rnrnrr s. mramor carca'eo, minors eas numana.

Application led April 10, 1922.V Serial No. 551,010.

My invention relates to a particularly to as used on open top gas plates.

gas burner and a sectional type of burner ranges and gas' invention consists in its preferred I'orm of a gas burner having'a plurality of sections, a valve :for controlling the number and a coordinated means interceptlng 1n proportionate degree the gas sup ly passages to Tie principal object of m sectional open top burner for successively cutt-ing oi to the different sections and whereby the height of flame ed alike in all Sections regardless number of sections burning.

A further object of provision of a gas range ratio of as to primary the dilierent sections..

invention is a aving a Yvalve the gas supply a single means may be adjustof the my invention' is the burner in which the individual sect-ion t ereor` is controlled by adjusting the res ctive gas nozzle thereto.

. Anot er object is to provi de in said class a burner having adjustable nozzlesin which eiliciency of air injection closely approaches that of a burner having iixed area nozzles.,l

These and other objects o will be more apparent by r accompanying sheet of drawings in w e 1 1s a sectional elevation of my f my invention eference lto the hichsaid-1nvention taken through the center of Figure 2 witha section of grid shown above the burner;

Figure 2 1s a plan view in partial section approximately on -line 2-2 and 2*- of Fi re 1 Figure@ is a partial plan in section along the llne 3-3 of Figure Figure 4 is a front of the burner body member which is shown in the foregoin figures; igure 5 fuel nozzle with fuel thereto.

Referrin ings, a fue supply p1 which is threaded a va is an enlarged view of the upper nozzle hood secured now specifically to the drawe'10 is shown into ve casing 11 having a gas passage 12 therein leading from the said supply pipe. The said in the valve casing 11 to a c assage 12 leads amber 13 havpluralit the said openings ing a large passage 14 at the top and a small passage 15 at the bottom, the openin s from the chambei- 13to the said passages orming valve seats for which corresponding seating surfaces are provided on the adjustin screw 16 extending through the said chamer 13, as shown. The said large passage 14 communicates with -a horizontal passage 17 which is intercepted by a valveplug 19 having thesaid passage continuing therethrough and the small passage 15 communicates with another horizontal passage 18 which likewise is intercepted by the saidv lug member 19, the said Apassages 17 and 18 eading on the oppositeside of the said plug 19 to respective gas nozzles 20 and 21 in threaded engagement with the valve casing 11. In the said gas nozzles, main pasages 22 and 23v lead to primary nozzle openings 24 and 25 which are central with seconda openings 26 and 27 respectively in nozzle ood members 28 and 29 which are screwed over their respective nozzles with long and well fitted threads. The said secondary openings 26 and 27 are larger insize than the respective primary openings 24 and 25 sothat the jets of gas lssuin from the latter are not materially affecte by passing through the said secondary openings. The main nozzle assages 22 and 23 are each provided wit va of side openings 30 and 31 which extend rom the side thereof opening under the front ends of the nozzle hoods 28 and 29. The said nozzle hoods when screwed all the way home seat on the ends of the said nozzles thereby sealing oft any passage of gas by Wag1 of the said last mentioned openings 30 an 31,f but by loosening the said hoods more or less as required, `an adjustable amount of -gas is allowed to pass through 30 and 31 and into the burner by way of the secondary openings 26 and 27, the result of such adjustment beingla change in nozzle area and consequently a c ange in air injection for a given quant-ity of gas.

Referring now to the valve plug member 19, the gas pasages 17 and 18 therethrough are situated in i'erent vertical lanes so that on rotation of thesaid plug y means of the handle 32 fastened -thereto by the screw 33 `one quarter turn from open to closed position the passage '17 is first infull open position or in perfect register with its continuation in the valve casing 11 while at' the same time the lower passage 18 is in half open position, as shown particularly in Fi ure 3. On turning the said plug in'the d1- rection stated passage 17 comes to halt open position with the passage 18 in full registry and further turning closes off the passage 17 entirely with the lower assage 18 still in half open position. Furt ier turning of the i plug 19 also cuts oft' the passage 18 entirely When all gas flow to the burner will cease. A pin 34 extends through the said plug member 19 and pro'ects from both sides thereof engaging wit suitable stops as 35 to limit the movement of the said plug 19 to a quarter turn. A flat spring member 36 j bears upon the said pin 34 maintaining the said plug member 19 in proper seated position and the said spring has suitable grooves or depressions therein as 37 which engage the said pin at a proper time to. indicate the complete cutting off of gas by Way of the top passa e 17 when the said passage has just een rought completely out of registry by the turning of the plug member as hereinbefore describede The said spring member consists of a substantially flat piece of phosphor bronze or other suitable material approximately one thirty-second of an inch thick, and said member has two holes punched therein for the passa 'e therethrough ot bushing piece 38 and p .ug niember 19. The said springmcrnber is anchored and fastenedto the valve casing 11 by means ofthe bushing piece 38 passed therethrough andl screwed into the said valve casing at the. to ofthebefore-mentioned passage 14, the saidy bushing piece being drilled and tapped for containing the aforesaid adjusting screw 16 as shown. On issuing from the aforesaid fuel nozales 2O and 21 the gas passes at high velocity into respective mixing tubes 39 and 40 in the burner body member 41, air being injected into the said tubes by way of openlng 42 in the front end of the said burner body. The said mixing tubes 39 and 40 communicate directly with respective burner sections 43 and 44 each of circular sha e and concentrically positioned. A plurality of burner ports 45 extends from the upper side of each of the said sections from which combustion takes place in the usual manner, a grid piece 46 extending above the said ports on which is placed the cooking vessel to be heated. For convenience l' have shown a particular arrangement of the said burner ports and the said grid which allows the lighting of the outer section from the inner section without tiring back' to the gas nozzle, such arrangement being specifically claimed in my copending application Serial No. 551,011 tiled April 10, 1922.

The nozzle openings 24 and 25 in the said fuel nozzles 20 and 21 are proportioned to the size of the burner sections 43 and 44 respectively and the areas controlled by the adjusting screw 16 seating on openingsf-to the passages 14 and"s15 are also in proportion to the sizes of;r the burner section, such openings in the case of the passages to the smaller burner section 44 being very small as compared with a half opening of the passage 18. The halt closure of this said passage 18 therefore does not appreciably eli'ect the llow yot gas therethrough, a full flow of gas being obtained for both sections with the valve plug 19 in the open position even though the said passage 18 1s then in half registry.

As to the operation of my invention, individual adjustment is made of each gas nozzle as described heretofore so as to inject the air in the proper ratio to each burner section, the said adjustments being permanent for a given quality of gas. lVith the plug member 19 in wide open position as shown in the drawings the adjusting screw 16 is set in proper position so as to obtain the desired full height iame such adjustment being changed from time to time as necessar tion until the boiling point is reached when -the said plug is turned so as to fully cut oft' the outer section 43 and partially cut down the inner section 44 to whatever extent required depending on the size of the cooking vessel, a great saving of gas resulting from the higher etliciency of the small section over a large single burner on reduced heat as shown in my pending application, Serial No. 439.905 tiled January 26, 1921. In the case of frying or any other eookingoperation requiring a uniform distribution of heat over the bottom of the vessel the valve plug 19 is left in wide open position while for a decreased amount of heat the adjusting screw 16 is turned down suchwaction causing a uniform decrease in flame height from both sections, a much closer adjustment being obtainable in this man-ner than with adjustment of the valve yplug in the ordinary burner.

1t should be noted that my invent-ion does not require in every form the adjustable nozarate means as the screw 16 for adjusting the quantity of gas to the res e`ctive sections.

While I have describe more or less pre- Lacasse and the proportion of partsan tlie substi- 'tution of equivalents as circumstances may suggestor render expedient without departlits respective burner section, and controll a plurality of a justable fuel nozzles pro- 'plic' to theburnei t ing from the spirit or scope of my invention. claim:

l. In a gas burner, having a having a urality of mixing tubes therein.; a plurality of fuel nozzles projecting into the said mixing tubes one nozzle to each tube; a valve casing having; a plurality of pamages therein lea ing to t e said fuel nozzles; a common adjusting means intercepting all of the said passages, each passage ing intercepted in vproportion to the size of its respective burner section and control means 1n the said valve casing.

2. In a gas burner, a burner body member having a plurality of burner sections and having a plurality of mixing tubes therein; a plurality 0f fuel' nozzles projectinginto the said mixing tubes one nozzle to each tube; a valve-Casin having a plurality of passages therein lea in to the said fuel nozzles; a commonadjusting means intercepcing all of the said passages, each passag ing interce ted in proportion to tlie size of means in said casing1 whereby fuel is suprough any number of the said passages. f

3. In a gas burner, a burner body member 4having a'plurality of burner sections and having a pluralit of mixing tubes therein;

jecting into the said mixing tubes one nozzle to each tube; a valve casin having a plurality of assages therein lea ing to tlie said fuel nozz es; a common adjusting means intercepting all of the said passages, each passage being intercepted in lproportionv to the size of its respective burner section and coi-- trol means in thesaid valve casing.

4. A gas burner com rising two heating sections, each section wit an individual mixl. .ing tube leading thereto; adjustable fuel a plurality of fuel nozzles nozzles projecting into each of said mixing tubes one nozzle to each tube, a valve casing having passages therein leading to each o the said fuel nozzles, fuel adjusting means intercepting sage being intercepted su tantially'in proportion to the size of its respective burner section, and a common control means intercepting said passages.

5.1In a gas burner, a burner body member having a plurality of burner sections and having a plurality of mixing tubes therein, projecting in to the said mixing tubes one nozzle to eac tube, a valve .casing havin aplurality of passages therein leading tot e said fuel nozzles, a

a burner body memberA jlurality of burner sections andl P each of said assages, each pasburner sections,

common adjusting means intercepting the said passages, each passage being intercepted substantie ly in proportion to tlie sizeof its 'respective burner section, and control means intercepting the saidpassages.

' 6. In a gas burner a burner body member having-two burner sections and two correspending mixing tubes therein; fuel nozzles projecting into each of the said mixing 'tubes one nozzle to .each tube; a valve easing having two passages therein, one passage leading to each of the said fuel nozzles; a Y

burner a burner body member having a plurality of-heating burner sections extending in substantially e saine horizontal plane and arranged in a single substantially circular. heating unit having fa plurality of burner ports in'the upper side vof each of the said burner sections, and having a plurality of mixing tubes connecting directlyinto the-'saidfsections each" tube to its lrespective section'ga plurality of fuel ,nozzles projecting into'the. said mixing tubes;

avalve casing having a 'plurality of passages therein leading to the said fuel nozzles and .continuing therethrough; adjustin means' intercepting the' said passages',an

means in the said valve casing.

8. A gas burner comprising a plurality of burner sections, the said burner having a plurality of mixing tubes corresponding in number to the said burner sections, a valve casing having passages therethrou h leading to said mixing tubes, a master vave within said valve casing whereby the flow of fuel through the said valve body is controlled, and valves in each of said pasages for controlling the flow ofy fuel therethrough.

9. A gas burner comprising two heatin sections, each section with an individua mixing tube leading thereto; an adjustable fuel nozzle projecting into each of said mixing tubes; a valve casing having pasages therein leading to each of thesaid fuel noz- 10. A gas burner comprising a plurality of plurality of mixing tubes corresponding in number to the said burner sections, a gas nozzle projecting into each of'said mixing control iis the said burner having aI tubes, a valve casing having passages therethrough vleading to said gas nozzles, a master valve whereby flow of through the said valve casing is'l contro led, and m addition independent restricting means in at least one of said passages in said casing leading to at least one of said gas nozzles.

11. A gas stove burner comprising` la 5 burner section with a mixing tube connecting thereto, an adjustable gas nozzle projecting into the said mixing tube, a valve casing having a passage therein leading to vsaid gas nozzle, means of gas shut off interceptlng said passage, and adjustable means for con- 10 trolling the area of said passage.

Signed at Chicago, Illinois, this 3rd day of April, 1922.

PHILIP S. HARPER.

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