US425302A - Apparatus for illuminating buildings with coal-oil - Google Patents

Description

1 t e 6 h S S t B 8 h S 3 Y D nU QM A a d O M 0 m APPARATUS FOR ILLUMINATING BUILDINGS WITH GOAL OIL No. 425,302.

Patented Apr. 8, 1890.

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PatentedApr. 8, 1890.

A. S, CODY. APPARATUS FOR ILLUMINATING, BUILDINGS WITH GOAL OIL.

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r A. S. CODY. APPARATUS FOR ILLUMINATING BUILDINGS WITH COAL OIL.

Patented Apr. 8, 1890,

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ABRAHAM S. CODY, OF MIDLAND, MICHIGAN.

APPARATUS FOR ILLUMINATING BUILDINGS WITH COAL-OIL.

SPECIFICATION forming part of Letters Patent No. 425,302, dated April 8, 1890.

Application filed October 25, 1889. Serial No. 328,138. (No model.)

To all whom-it may concern.-

Be it known that I, ABRAHAM S. CODY, a citizen of the United States, residing at Midland, in the county of Midland and State of Michigan, have invented certain new and useful Improvements in Apparatus for Illuminating Buildings with Coal-Oil, of which the following is a specification.

llly invention relates to apparatus for supplying oil from a common or general reser- V011 to any desired number of lamps suitably located and arranged; and it consists in novel features of construction, hereinafter described and claimed.

In order that my invention may be more fully understood, I will proceed to describe it with reference to the accompanying drawings, in which- Figure I is an elevation, partly in section, of an apparatus illustrating my improved system. Fig. II is a vertical section, on a larger scale, of the elevated air-receiver and its accessories and connections. Fig. III is a transverse section of the same, showing the air-receiver depressed and disconnected from the siphon-pipe. Fig. IV is a transverse section in the same plane, showing the air-receiver elevated and with the connecting-passage open. Fig. V is a sectional elevation of the apparatus, illustrating a modification.

A represents a suitable reservoir for containing the supply of oil, and connecting at bottom through a pipe B with the regulating chamber or pan 0, which may be open to the atmosphere. The said pipe Bis connected with the bottom of the reservoir A, and extended, preferably, nearly to the bottom of the chamber 0, and is provided with a faucet b, to shut off the supply of oil, when required. The reservoir A and the regulating-chamber O are connected by a second pipe 0 for air, which communicates at top with the upper part of the reservoir A and at bottom with the supply-chamber O at the level on which it is intended to maintain the supply of oil. The top of the reservoir A is furnished with a screw-plug I and packing i, so that it may be closed air-tight, this plug being employed for introducing the supply of oil.

D represents an overflow-pipe from the regulating-chamber O. From the lower part of the chamber 0 a siphon-pipe E extends in an upward direct-ion. the siphon-pipe is provided with a faucet F, the rotary external shell of which is connected with the air-receiving chamber G, through a port Z at the top of the faucet F, in such wise that by reversing the chamber G or turning it'down, as shown in Fig. III, the connection between the siphon-pipe E and the elevated air receiver may be shut off.

The elevated air-receiver is filled with oil in first supplying the apparatus, and when turned into its elevated position, being at the highest point of the apparatus, it forms a receptacle into which all air-bubbles will flow, so as to relieve the connecting-pipes and lamp-burners from the effect of leakage of air which may occur through joints or in the siphonic operation.

The air-chamber and its accessories, with the siphon-pipe E, are supported by suitable brackets H from the ceiling, wall, or floor, as may be most convenient. From its highest point the siphon-pipe E descends by an arm E of any necessary extent, communicat ing at proper points with supply-pipes K K, in which the oil is conducted to the lamps L.

The body of thelamp directly above the horizontal connecting-pipes K through which the oil is supplied, is provided with metallic strainers J, beneath which the body of the oil will always rest below and out of the reach of the lamp-wicks, so as to provide a constant trap over the lamp ends of the con necting-pipes to prevent the passage of air through the latter to the oil-supply pipes. The valve or faucet to which the air-receiver is attached is fitted in the customary manner by a conical and ground joint with the interior body f, the latter being provided at its smaller end with the customary screw-thread to receive the nuts M, by which the parts are drawn into tight connection, as is usual in the construction of faucets of this character.

The air-receiver G may be advantageously made of glass, or it may be made of metal with a glass plate or a glass tube connected with the oil to indicate the height of the oil in the said air-receiver. The reservoir A may also be furnished with a similar gage-tube in the customary manner.

The operation of the apparatus is as follows: In order to fill the pipes and reservoir, the

At the highest point.

lamp-burners are removed and the bodies of the lamps tightly closed with rubber corks; likewise the induction end of the siphon-pipe E, or this latter may be provided with a cock 9 for the purpose. The air-reservoir G is then screwed out of its socket in the faucet F, and a funnel being put in its place the entire system of pipes is filled with oil from this upper most point. Then the air-receiver is itself filled, the faucet reversed to close it, the airreceiver screwed on, and then turned up into vertical position, which opens the passage between the air-receiver G and the siphonpipeE through the faucet F. The cockb in the oil-supply pipe B being closed, the reservoir A- is completely filled with oil through the cap I, the latter tightly closed down, the cock I) opened, and the oil will then flow down into the regulating-chamber until it reaches the open lower end of the air-pipe O for the passage of air to the reservoir A, and so retaining the oil in the latter by atmospheric pressure. The induction end of the siphon-pipe E having been previously opened and the stoppers in the lamps removed and the burners replaced, it will now appear that the siphonic action will furnish a constant supply of oil to all of the lamps L, maintaining a constant level of oil therein up to the line P, which is the exact level of the lower end of the air-pipe O and is the predetermined height at which the oil is to be maintained, the lamps being arranged with reference to this level so as to keep the oil at a constant. and proper height for the supply of the burners. Atmospheric pressure is applied through the burners to one end of the column, or siphon system, and

to the other end at the surface of the oil in the open regulating-chamber 0. As the oil is consumed, the slightest depletion of oil in the body of the lamps causesa corresponding depression of the oil in the open chamber 0, permitting a bubble of air to pass up through the air-pipe O and a corresponding descent of oil through the supply-pipe B, so as to maintain the oil constantly at the desired level indicated by the line P. Any air which may enter the siphon-pipe E or the supply-pipes K K at any point will rise through saidpipes to the highest point and reach the air-receiver G, where it passes above the level of theoll, leaving the oil in the siphon and supply pipes entirely free from air, a corresponding quantity'of oil passing through the air-receiver G into the pipes. Whenever the oil falls too ,low in the-air-receiver G to maintain this pipes and thus, by the nonremoval of the oil beneath the strainer, to insure the constant maintenance of an oil-trap to prevent the passage of air into the pipes.

In the modification shown in Flg. V the supply-pipe B and siphon-pipe E are made 1n one continuous pipe with a common commu nication with the regulating-chamber 0 through apertures b in said continuous pipe.

The reservoir A may of course be located at any desired height above the regulating chamber O-as, for example, on an upper floor, as illustrated in Fig. V.

Having thus described my invention, the following is what I claim as new thereinand desire to secure by Letters Patent:

1. The combination of the reservoir A, si-

phon-pipe E, faucet F, and reversible air-re- ABRAHAM s. CODY.

WVitnesses:

M. W. RYAN, SAM FOSTER.

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