USRE10050E - Franklin t - Google Patents

Description

`I'. T. GRIMBS,

Assigor, by mesne assignments, to M. HICKS and T. SMITH.

LAMP.

Reissued Mar. 7', 1882.

VZZIW'ne u' PATENT OFFICE.

FRANKLIN T. GRIMES, OF LIBERTY, MO., ASSIGNOR, BY MESNE ASSIGNMENTS, TO MICHAEL HICKS AND THOMAS SMITH, OF NEW YORK, N. Y.

LAMP.

SPECIFICATION formingpart of Reissued Letters Patent No. 10,050, dated March 7, 1882. Original No. 110,648, dated January 3, 1871. Application for reissue tiled Juno 3, 1879.

T i all whom it may concern:

Be it known that I, FRANKLIN T. GRIMEs, c Liberty, in the county of Clay and State of l\ lissouri, have invented a new and useful Improvement in Lamps, of which the following is a full, clear, and exact description, reference being had to the accompanying drawing, forming part of' this specitication, and which rep- "esents a sectional elevation of a lamp conio structed in accordance with my improvement. Referring to the accompanying drawing, A represents the oil-reservoir, and B the air tube or passage arranged to pass downwardly through said reservoir, and from thence to or 15 around the wick-chamber G from below, and up around the wick-tube D to the burner E. Said air-passage may be furnished with a lid, b, at its top, to close it when thelamp is notin use.

Fis a water base or stand for support of the lamp, and which may communicate by suitable orifices with the lower branch of ythe air-passage B, so that, while said base serves to give steadiness to the lamp when in use, in case of `the lamp upsetting the water will How out of said base into the air-passage to extinguish the llame. Said water-chamber F, as also the oilreservoir A, may each be provided with valves to air-orifices made therein, or in their screw- 3o caps or filling-nozzles, so constructed and operating that, while not excluding air from entering when the lamp is in an upright position, fluid is prevented from escaping in case of the lamp upsetting.

The wick-chamber C is supplied with oil from the reservoir- A by a tube, G, arranged within the lower connecting-branch of the air tube or passage, and provided at its opposite ends with a valve or valves that operate to admit of iiow 4o under ordinary conditions, and in an erect position of the lamp, but which close the communication between'said reservoir and chamber should the lamp be upset. The valve that controls ingress from the reservoir closes in case of an explosion Within the wick-chamber, and

thereby preventsignition extending to the oilreservoir. y

The arrangement herein described of the airpassage B insures, first, the descent of the cold 5o and heavier air through the oilin the reservoir, keeping the oil cool, and afterward the ascent ot' the air under rarefaction of it by the flame, thus maintaining a most perfect circulation or current through the lamp, and contributing alike to its satety and brilliancy or steadiness in burning. The same arrangement i s applicable to other constructions of lamps employing a. detached wick-chamber-as, forinstance,

to a students lampand which is adjustable up or down on a vertical rod or post under 6c look by a set-screw, and to chandeliers in which a central oil-reservoir is made to supply7 a series ot' branch lights arranged aroundit; This arrangement establishes a. current in which the cold and denser air is made to assume its natural downward course, keeping the oil in the reservoir cool, and thereby reducing the risk of an explosion, and afterward, as it approaches the dame, to assume its natural upward course of a heated current.

It will be noticed that all of the air to supplyr combustion is furnished by the tube or airpassage B, and is taken by a circuitous passage from a point above the iiame, and somewhat, distant, and conveyed into the closed burner to the flame. The eiect of local drafts and currents is thus avoided, and by this means is the steadiness of 'burning above referred to attained, which makes this lamp peculiarly adapted to railroad-cars and steamboats.

What is here claimed, and desired to be secured by Letters Patent, is`

1. 1n a lamp, the combination of an oil-reservoir, A, air-supply tube B, passing through said reservoir and thence to the burner, an oil- 85 conducting passage, G, and a closed burner,

E, the wick-tube being set apart from the oilreservoir, and to one side thereof', and connected therewith by the air-tube B and oil-tube Gr, whereby the heat from the flame will not come 9o into contact with the reservoir, substantially as'described.

2. In a lamp, the combination ot' an oil-reservoir,A, an air-supply tube, B, passingthrough said reservoir in the direction of the greatest length of the latter, to thoroughly cool the oil, and thence to the closed burner E, oil-conducting tube G, wick-chamberO, and the said closed burner E, the wick-tube being set apart from and to one side of the oil-reservoir A, whereby roo the heat from the flame willnot come intocontact with the latter, substantially as described.

3. In a lamp, the combination of an oil-reservoir, A, an air-supply conduit, B, the Walls of which are in contact with the oil in the reservoir, the Wick-tube C, and closed burner E, to which latter the airis conducted by the conduit B, thesaid wick-tube being arranged or set away from and to one side of said ol-reser voir A, and connected therewith by the air and oil tubes or conduits B G, whereby the oil is thoroughly cooled by the passage of air to the burner, and the heat from the flame will not come into contact with theoil-reservoir, substantially as described.

4. In a lamp, the combination of oil-reservoir A, aireonduit B, the Walls of which are in contact with lthe oil in the reservoir, a separate wick-chamber', C, the latter being arranged away from and to one side of the reservoir, and the connecting air and oil tubes B G, all arranged substantially as shown, to cool and preserve the oil at a loT temperature, and the closed burner E, the chimney of which is set directly upon the burner, closely inclosing it, whereby all the air supplied by tube B comes into direct contact therewith, and the products et' combustion. are completely and iinmediately carried away by the chimney.

F. T. GRIMEs.

Witnesses:

Y J. L. SEGOB,

Q. ANDREAS.

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