US861515A - Air-feeding appliance for oil-burning steam-boiler furnaces. - Google Patents

Description

PATENIEfi JULY 30 '1. w. HEINTZELMAN & J. G. CAMP.

I No. 861,515.

LIANGE FOR OIL BURNING STEAM BOILER FURNACES.

AIR FEEDING APP APPLICATION FILED HOV. 5, 1906.

-2 SHEETS-455E! 1.

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No. 861515. PATENTED JULYBO, 1907.

, T. w. HBINTZELMAN & J. G. CAMP. AIR FEEDING APPLIANCE FOR OIL BURNING STEAM BOILER FURNACES.

APPLICATION FILED NOV. 6, 1906.

2 SHEETSSHEET 2.

LTE' STATES raYLon' w. 'HEINTZELMAN AND JAMES e. 'GAMP, or 'sA'on-snnnro, CALIFORNIA.

AIR-FEEDING APPLIANCE FOB DID-BURNING STEAM- BOILEB FURNACES.

Specification of Letters Patent.

Patented July so, seer.

Application filed November 6} 1906. Serial No.'M1,967.

To all whom it may concern: I

Be it known that we, TAYLOR W. HEINTZELM&N and J AMES G. CAMP, both of Sacramento, in the county of Sacramento and State .of California, .have jointly invented a certain new and useful Improvement in Air- Feeding Appliances for Oil-Burning Steam-Boiler Furnaces, of which'improvement the following is a specification. 1

l Our present invention relates more particularly to, and is an improvement in, oil burning'apparatus of the 'general character of that set forth in Letters Patent of the United States No. 830,833, granted and issued to us under date of September 11, 1996, and its object struction and ready applicability in connection with fireboxes of the ordinary type, whereby the supply of air at the rear of the firebox may be conveniently and accurately regulated in accordance with the conditions of combustion, the angled deflection of the incoming air adjusted as required,, and enginemen and firemen protected from danger of injury by flashing in the event of an over supply of oil to the burner.

The improvementclaimed is hereinafter fully set forth. I I r In the accompanying drawings: Figure l isa front view, in elevation, of an, air feedingappliance emboclying our invention;. Fig. 2, a horizontal 'section through the frame and the adjoining portion of the hood; Fig. 3, a side view of the hood, detached; Fig. 4, a bottom view of the same and of the connected damper; Fig. 5, a vertical longitudinal section through the appliance complete, and through the adjoining portion of the rear water wall of a steam boiler firebox to which it is attached; and, Fig. (3, a plan or top view of the deflecting plate. I

Our improved air feeding appliance, is, similarly to that set forth in our' Letters Patent No. 830,833 aforesaid, herein shown as connected to the rear water wall,

' 3, of 'the firebox of a tubular steam boiler, and as of air supplied through said passage, by a deflecting plate, '27, The structural features of improvement in an air feeding appliance of the above general type which constitute our present invention will now be described.

In the practice of our invention, we provide a frame, 84, which corresponds substantially in contour with the upper air supplypassage, 24, and is secured by bolts or rivets, in the ordinary manner, to the rear water wall, 3, of the firebox, surrounding and forming an outward extension of the passage, 24. g This passage may either be one'specially formed in the rear water wall, or in application to a steam-boiler designed for, or previously used with solid fuel, it may i be the ordinary door opening. An air feeding hood, i 25, which is open at its front and bottom, and closed i at its top, sides, and back, and which has its rear wall ioutwardly inclined, is connected to the frame, 24, ,preferably, as shown, by being hinged thereto, the :hoed, in such case, being provided with lugs, 28, ion one side, through which and through lugs, 24", j on the frame, a hinge pin, 29, passes, and with a lug, i 28, on its opposite side, through which passes a pin, "30, fixed to the frame, the hood being held up to the frame by,.any suitablejastening, as a lsey, 31, fitting wall of the'hood, said opening being normallyjclosed by a boilerplate/33.,suspended 0,11 a,pin, 34, fixed. in the rear all of the hood The cover plate is held in position by a spring, 35, surrou nding the pin and subject 'to adjustment as tot ension by nuts, 36, engaging a screw thread thereon. By swinging the cover plate the firebox to free the tubes from deposits of carbons. ceous matter. l

- The area-for the passage air through the oponbottom of the hood,'25, and thence to and through'the upper air supply passage, 24, is controlled and varied as required by a damper or' regulator, 26, fitting in the bottom opening of the hood, and pivotally connected to the hood, so as to close said opening, either completcly or to any desired degree less than complete closure. The damper is pivoted to the bond by pins 26, 26", passing through lugs, 25, on the'lower ends the lower side of the damper, one of the pins, as 26,

by which the damper may be swung upon the common the other, as 26 being threaded and provided witha nut, 26", by which the damper may be clamped and held in position when adjusted, with the capacity of ready variation therefrom as desired.

is to deflect the current bf air entering the firebox through the upper air supply passage, 24, downwardly towards the burner; is connected to the frame, 24, and extends therefrom, in downwardly inclined position, through the passage, 24, into the firebox. The d eflecting plate is preferably provided with downwardly turned lateral lipsor flanges, 27, as shown in Fig. 5, and its forward portion, or that projecting into the said openings permitting a portion of the entering air to pass through the deflecting plate, thereby preventpins, 27, atits rear end, which rest in sockets in the on the pin, 34, the opening, 32, ,may be nncovered. when desired, for the purpose of introducing sand into of the side walls of the hood, and fixed in lugs, 26, on

being turned upwardly, to form an operating handle.

A baffle or deflecting plate, 27, the function of which I in the pin 30.: An 'opiening, $2, is formed in the rear firebox, is perforated by a plurality of openings, 27",

ing it from being rapidly burned out. The deflecting plate is supported on the frame, 24, by lateral bearing frame, and igheld in position by a substantially vertical stop 'arm,'27 z,formod on one of said pins, and having a chipping piece, 27l, which abuts against thea readily be done by cutting off a portion of the chipping piece; 27l, or byinserting a liner between its end box wall and surrounding said passage, an air feed hood and the-franc, as the case may be.

' The open bottomed hood and the adjustable damper controlling the lower opening 'thereoLare essential and characteristic featuresof our invention which have been found, in practical and continued service, to be of substantial advantage.' The closed rear wall of the hood serves to deflect fiame caused by flashing under an excessive supply oi'oil, downwardly on the deck of the locomotive, and thereby 'protects the engineman and fireman from injury by the horizontal discharge of the flame which would otherwise occur. This wall, with its opening and cover :plate, also provides convenient means for sanding the tubes when required.

The location of the damper, and itspiv'otal connection to the bottoms of the side walls of the hood, are such as to enable its control of the entering current oiair, and 1 its adjustment for variation of the amount of air ad mitted, to be effectively exerted and readily manipulated.

We claim as our invention and desire to secure by Letters Patent:

The combination with a steam boiler fire box having an upper air supplypassagc, of a frame connected to the tire removnbly connected to said frame and closed at its top sides. and rear, the bottom thereof being open, an adjustable damper connected to said hood and controlling the open bottom thereof, said rear wall provided with a sand supply opening, :1 cover plate controlling said opening, a deflecting plate having a plurality of perforations in its forward portion and fitting at Its rear in the frame and projecting forwardly and downwardly through the air supply pussuge and means for adjusting the inclination of the deflecting plate.

TAYLOR \V. HEINTZELMAN. JAMES G. CAMP.

Witnesses J. E. MAHANEY, J Ni L Bu'rnnn.

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