US1365697A - Air-feeding device - Google Patents

Description

J. Y. KING.

AIR FEEDING DEVICE.

APPLICATION FILED NOV. 19, I919.

1,365,697. Patented Jan. 18, 1921.

I111 IIIIIIIIII F f Iva/@7122? Jim fin UNITED STATES PATENT OFFICE.

JOHN Y. KING, OF LANSDOVVNE, PENNSYLVANIA.

AIR-FEEDING DEVICE.

Application filed November 19. 1919.

Q all w lwm it may ounce m Be it known that 1, JOHN Y. KING, a citizen of the United States, residing at Lansdowne, in the county of Delaware and State of Pennsylvania, have invented new and useful Improvements in Air-Feeding Devices, of which the following is a. specification. 7

My invention relates to a new and useful improvement in air feeding devices and has for its object to provide an enceedingly simple and effective device of this description which may be readily applied to the door of a coal burning furnace which when so applied will project a stream of highly heated air over the fire bed in such manner as to intermingle and combine with the gases of ombustion causing them to burn with an intense heat and thus prevent the e cape of unburned carbon in the form of smoke or soot.

A further object of my invention is to provide for the regulation of the admission of air to the device by gradually decreasing the passages through which said air llows To ircr ase the speed of said flow.

ith these ends in view, thus invention consists in the details of construction and combination of elements hereinafter set forth and then specifically designated by the claims.

in order that those skilled in the art to which this invention appertains. may understand how to make and use the same, 1 will describe its construction in detail, referring by numerals to the accompanying drawing forming a part of this application, in which Figure l, is a broken away section of a portion of a furnace showing my improved air feeding device applied thereto the latter being partly broken away and sectioned to clearly show the construction thereof.

Fig. 2, is a face view of a portion of the furnace door showing my improvement applied thereto.

F ig. 3, is a section at the line 33 of Fig. 2 of the front wall of the air intake and regulator.

F ig. 4, is a detail view of nozzles having different size holes therein for the projection of heated air.

In carrying out my invention as here embodied, 1 represents the body of the device having its inner end turned upward at an angle and on this body is formed an en- Specification of Letters Patent.

Patented Jan. 18, 1921.

Serial No. 339,178.

lar zeincnt or shoulder 2 which is threaded for the reception of nut 3.

i represents an air intake which is formed with the enlargement 2 and this intake is provided with a front wall 5 through which latter is formed the air inlet (5.

i represents a regulator having the annular Hang a hich it around the outer edge of the intake 1- aud is held in place by the -ct screw 9 passing through the concentric slot 10 and threaded into the wall 5. This regulator has an opening 11 which registers with the air inlet 6 so that when the regulator turned upon its axis in one direction or the other it will increase or decrease the capacity o the inlet 6 and when the Iapacity of this inlet is properly adj usted the regulator may be securely held in this po ition by tightening: screw 9 as will be readily understood.

[2 represents the nozzle the body of which is threaded so as to be screwed into a threaded opening in the inner end of the body 1 and this nozzle has a flange in the form of a nut for the application of a. wrench Whereby it may be readily screwed into the threaded opening in the end of the body or removed therefrom. and through this nozzle i formed the hole 13 for projecting the hcatel air into the gases of combustion.

The device is readily applied to the door H of a furnace by forming: a hole through said door of sufficient size to permit the passage of the enlargement 2 of the body passing the body through said hole and runnina the nut 3 upon the enlargement until said nut bears upon the inner face of the door with sufficient pressure to clamp the device in place and as the intake 4 is in the form of a funnel its flared walls would come in contact with the outer portion of the door or the regulator 15 carried by said door and serves as the outer bearing for clamping the device.

When my improved air feeding device is thus applied to a furnace the door 14 may be opened for feeding coal to the furnace without in any way interfering with this operation. and as it projects to a relatively considerable distance in the furnace over the tire bed it will become heated and the air passing through the inlet 6 will absorb this heat and thereby be expanded, this heating and expanding gradually decreasing as the air flows inward until it is projected in a highly heated state in the products of combustion intermingling with these gases and supplying the proper amount of oxygen to bring about a high degree of combustion, thus intensifying the heat of said combustion and preventing the escape of the free carbon in the form of smoke or soot.

In practice I have found the action of this device is similar to the action of a blow pipe and produces large economy in the consumption of fuel for a given amount of heat.

By making the intake in the form of a funnel and gradually reducing the passage in the body a large volume of air is gradually confined and expanded as it passes to the nozzle thus increasing the pressure thereon and causing it to be projected from the nozzle with considerable force.

In order that different size outlets may be provided for the device and applied thereto without removing the device from the furnace door I utilize a set of nozzles 12 each having a different sized hole 16 therethrough as shown in Fig. 3 by the use of which the outlet from the device may be regulated, and this is essential for the reason that the change of fuel or the conditions in the drafts of the furnace require a different inflow of heated air, and while this inflow may be determined more or less by the regulator 7 the essential point of regulation is at the nozzle.

In order that the inflow of air may not inadvertently be entirely shut off I form a central hole 17 in the wall 5 and a corresponding central hole 18 in the regulator 7 the relation of which is not affected by the revolving of the regulator.

Of course I do not wish to be limited to the exact details of construction as herein shown as these may be varied within the limits of the appended claims without departing from the spirit of my invention.

Having thus fully described my invention, What I claim as new and useful is 2- 1. In a device of the character described,

a body having a straight section and an upturned inner end, said body having a passageway therethrough gradually decreasing in cross section toward its inner end, a threaded enlargement formed upon the body, a nut adapted to run upon said enlargement, a funnel shaped intake formed with the enlargement, a wall inclosing the front of said intake, said wall having an inlet opening therethrough, a regulator mounted upon the intake, a flange formed with said regulator for centering it upon the intake, said regulator having an opening therethrough for registering with the opening in said wall, and means for holding the regulator in any adjustment upon the intake.

2. In a device of the character described the combination of a body having an upturned end, a gradually decreasing passageway therethrough, a funnel shaped intake,

means for regulating the flow of air through I said intake, a nozzle for regulating the outflow of air from the passageway, and means for attaching the device to a door of a furnace.

3. In a device of the character described, a body having a straight section and an upturned inner end, said body having a passageway therethrough gradually decreasing in cross section toward its inner end, a threaded enlargement formed upon the body, a nut adapted to run upon said enlargement, a funnel shaped intake formed with the enlargement, a wall inclosing the front of said intake, said wall having an inlet opening therethrough, a regulator mounted upon the intake, a flange formed with said regulator for centering it upon the intake, said regulator having an opening therethrough for registering with the opening in said wall, means for holding the regulater in any adjustment upon the intake, and

a nozzle detachably secured to the inner end of the body.

In testimony whereof, I have hereunto afiixed my signature.

JOHN Y. KING.

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