US824972A - Gas-burner. - Google Patents

Description

PATBNTED JULY 3, 1906.

J. P. BORNE.

GAS BURNER.

APPLICATION FILED Amm, 1905.

15716Jses J v gms/m A Q jy burners, but more especia IO.

" UNITED sTATEs i PATENT y OEEIOE.

JOHN F.v BORNE, OF SILVER CREEK, NEW YORK, ASSIGNOR TO HAMMOND-HOMBU-RGER COMPANY, OF SILVER-CREEK, .NEW YORK, A-CORPORATION -OF NEW YORK.

l 'GASHBURNEA No. s24,972.

Specication of Letters Patent.

teatented July 3, i906.

To all whom t may concern;

Be it known that I, JOHN F. BORNE, a citizen of the United States, residing .at Silver Creek, in the county of Chautauqua land State f New York, have invented a new and useful Improvement in Gas-Burners, of which the following is a specification.

This invention relates enerally -to gasl to the classV of burners used in batteries un er automatic water-heaters and combined with a pilot-lighthe such, for instance, asshown and describedin ,Letters Patent of the United States N o.

624,903, grammiY May 16, 1899, to Richard C. McClure and myself.

It is Well-known that when the .burner is turnedlow the llame is liable to flash back to the usual air-mixer and burn at that point. I/Vheny this occurs, the resulting soot gradually tion of the water-heater.

- The obj ect of m invention is to provide a burner which effectually prevent the flame from flashing back to the air-mixer.

In the accompanying drawin s, Fi re l is a top .plan vviewof a battery o? the urners.

` Fig. 2 is a transverse section thereof in line 2 2, Fig. 1 Fig. 3 is a vertical central section of one of the burners.

Similar letters of reference indicate corre- `sponding parts in the several figures.

' preferably consists of a tubular ring forming a gas-supply manifold or 'chambery This r1ng 1s provided with a central cross-bar a., having a screw-threaded hole a', adapted t'o receive a bolt (not shownl by which the burner is secured in place under `a lwaterheater or other article or apparatus to be heated.

B isthe gas-supply pipe, connected with the manifold.

The burners are mounted on the manifold, and each of the same preferably comprises an upright mixing-tube C, provided at its lower end with an air-mixer C of an suitable construction, an externally-threa ed gas-'supply nipple or nozzle D connecting the lower end of the air-mixer with the mamfoldA and having an orifice d in its closed upper end, and a burner-tip or hollow head E arranged at the upper end of the tube C. The burner-tip E clogs the burner, rendering the pilot-light Aat thevair-mixer'. form of the tip, causes the ygas to vbe comis preferably arranged at an upwardlyand forwardlyinclined angle to the mixing-tube C, so that the several ,tips conver oto-ward the center of the boiler-bottom w env used under 'a water-heater. have .been obtained by placing theinclined Atips at an angle of about forty-five degrees to the mixing-tubes, as shown.

Each burner-tip is closed at its lower 0r rear end by an imv erforate head e and at its front or upper en vby a foraminous late or disk e', which may bc constructed -o perfo- .e upon anlinternal shoulder e? of the tip miXin -tube C to form a .pocketor cavity g.

Satisfactory' results f, 4passing centrally through ,the disk and the A head e. YThe/closedlower or rear portion of the tip is extended beyond the rear side of the 5 The tip is preferably contracted or tapered toward 'its rear end, giving the same the form ofa conic frustum, as shown.4

In the use of the burner when the flamev tends to flash back it is .checked bythe pocket flashing down the mixing-tube and burning The .rearwardly-tapering Vg and extinguished in the same instead of pressed in flashing b ack and aids in chccking the descent of the flame in the mixing-tube.

It has been found `by numerous. experiments that by arranging ythe clam ing bolt- .lengthwise in the burner-tip, as slli ings, the gas, which has a tendency to die out at the center of the disk, follows along the sides of the bolt back tothe pocket g, the bolt thus actin as a guide which contributes to the desire result of checking or pocketing the ashed-back flame before the same reaches the air-mixer. In order 'to insure the dying out of the flame in the center of the perforated disk and'cause it to follow along the bolt, the disk is dished or concave on its outer side, as shown. This concave construction also protects the flame when low from being own int e drawblown out by a draft, the raised edge of the disk-and the projecting rim of the burner-tip forming a guard or shield around the fiame@ By inclining the burner-tips as shown the water of condensation from the boiler ofthe water-heater is not liable to drop into the same, preventinglextinguishment of the gas and clogging of t e perforated disks c by the d I lime in the water, which occurs when the tips natural or artificial gas, its perforated disk e and gas-inlet nozzle D are made removable,

as shown, so that they may be interchanged with similar parts having different-sized oriiices or perforations. When articial or Villuminatin gas is used, the orifice of the inlet-nozzle s ould be larger and the perforations of the disk e smaller than when natural gas is burned in order to obtain a flame of lufficient size to furnish the desired degree of eat.

H is the pilot-light or supplemental burner for automatically lighting the main burners when the latter are employed in connection with an automatic water-heater or similar apparatus. 'This'light preferably consists of an upright pipe h, rising from the manifold A, and a substantially horizontal mixingcand burner tube h', connected with the upper end thereof and having its front end turned upwardly, as shown. This horizontal mixingtube is preferably arranged midway between two of the burner-tips, as shown in Fig. 1 and provided at or near yits rear end with an airmixer h2 of any suitable construction. The vertical pipe h is screwed into a supply-passage formed in the manifold A independently of the main gas-chamber thereof.

fi. is a supply-pipe connected with said passa e. d3 the above-described arrangement of the pilot-light if its flame should flash back to and burn at its air-mixer h2 the ame is still in sufliciently close proximity to the adj acent main burner or burners to light the same,

- thus insuring a reliable operation of the auto;

to thetube, the rear portion ofthe tip being l closed and extended beyond the tube to form a pocket, substantially as set forth.

3. A burner comprising a gas-tube, and a rearwardly extended and tapering tip con-v nected therewith, the tip being arranged at an angle to the tube and the tapering extension forming a closed pocket at the rear end o1 the ti substantially'as set forth.

4. A urner comprising a gas-tube, a tip connected with the tube and having a foraminous plate at its front end, the tip having its rear end extended beyond the tube and forming a closed pocket, and a rod or bolt arranged in the tip and extending from said diskto the bottom of said pocket, substant1ally as set forth.

5i A burner comprising a gas-tube, a rearwardly extended and tapering tip connected with the tube and arranged at anupwardly and forwardly inclined angle thereto, the tip being provided on the rear side of said tube with a pocket and at its front end with a perforated concave plate, and a'clamping-bolt passing centrally through said plate and the ottom of said pocket, substantially as set forth.

Witness my hand JOHN F. BORNE. Witnesses:

' W. A.- CHAPMAN, N. S. BEBEE.`

this 23d day of March,l

Images