US422836A - atkins - Google Patents

Description

'(No Model.) 2 Sheets-Sheet 1.

J. H. ROSS 8c 13. E. ATKINS.

OVERHEAD OIL LAMP.

No. 422,836. Patented Mar. 4, 1890.

N. PEIEHS, Pboto-Lilhngm her. Washington, I). c.

(No Model.) v 2 Sheets-Sheet 2i. J.-H. ROSS & E. E. ATKINS.

I v OVERHEAD OIL LAMP.

Patented Mar. 4, 1890 N, PETERS Phclvl fllogragimr. wag-in eam a c.

UNITED STATES PATENT OFFICE.

J OIIN' ll. ROSS AND EDIVARD E. ATKINS, OF BIRMINGHAM, COUNTY OF VVARVVIOK, ENGLAND.

OVERHEA D OlL-LAM P.

SPECIFICATION forming part of LettersLPatent No. 422,836, dated March 4, 1890.

Application filed October 8, 1889. Serial No. 825,900. (No model.) Patented in England February 5, 1889, No, 2,019: in France September 23, 1889, No. 200,917; in Belgium September 23, 1889,19) 87,82 1, and in Italy October 12,1889,LI,855.

To all whom it may concern.-

Be it known that we, J OHN HOWARD Ross and EDWARD ELIJAH ATKINS, citizens of En land, both residing at 171 Hockley Hill, Birmingham, in the county of Varwick, England, have invented new and useful Improvements in Overhead Oil-Lamps, (for which we have obtained patents in France, dated September 23, 1 889, No. 200,917 in Belgium, dated September 23, 1889, No. 87,824; in Italy, dated October 12, 1889, Vol. LI, No. 355, and in, Great Britain by an application for Letters Patent, which patent, when granted, will bear date February 5, 1889, No. 2,019,) of which the following is a specification.

. This invention relates to the construction of an oil-lamp in such a manner that, its flame being directed downward from the body of the lamp without any part of the structure except glass below it, there is no shadow cast beneath. Such lamps are therefore especially adapted for pendent lights or for lights for ceilings of apartments or carriages.

WVe shall describe the construction of lamp according to our invention, referring to the accompanying drawings.

Figure 1 is a vertical section on the line X X of Fig. 2, which is a plan on Y Y of Fig. 1. Fig. 1 is a part section showing a niodification of the wick.

Ais the annularoil-reservoir,which is concealed within a ring A, that may be ornamented as desired, and a reflector A J There is free passage for air around the reservoir A, so as to keep its'contents cool.

i To the top of the reservoir A are fixed three brackets B, which carry a ring B, and from this ring three bolts 13 extend upward and carry an upper ring B 0 is the chimney, which is a metal tube having fixed on it two rings O C and a pro jecting bar C In use the ring 0' of the chimney rests on B but the chimney can be raised by hand as far as is permitted by the ring 0 meeting 13 lVhen it is so raised, the projecting bar 0 slides through a notch of the ring B and when the chimney is raised so far that the lower end 0 of the bar 0 is just above the ring B, on turning the chimney partly round, the end 0 resting on the ring 13', supports the chimney in its raised position until, on turning the chimney backward so that '0 enters the notch of B, the chimney can be lowered to the position shown in Fig. 1. NVithin the lower part of the chimney, which is perforated, is fitted a cylinder D, of ceramic or such like refractory material, preferably having at its lower end a projecting lip or flange D, and having near its upper end three projecting studs D In introducing the cylinderD into the chimney O the studs D pass through notches in a ring projecting inwardly from theehimney,

and then on turning D partly round its studs D rest on the chimney-ring, and thus the cylinder-D is supported. In order to prevent D from turning accidentally back so as to bring its studs D into coincidence with the notches, and so allow D to drop,a small setting-sorew is screwed through the wall of the chimney O to prevent movement of one of the studs D The brackets 13 carry a horizontal ring E, to which at one side are separately hinged a deflecting-ring E and abezel E for carrying the glass globe G. At the side of the ring E opposite to the hinges there is pivoted on E asmall handle E which in the position shown in Fig. 1 holds up the bezel E On withdrawing E the bezel E and the glass G which it carries can be turned down, and then acateh E which holds up the deflector-ring E, can be withdrawn, allowing E also to be turned down. Thus free access can be got to the wicks for trimming. Between the deflectorring E and the wick-holder there are fixed several concentric rings E of louver form, be tween which air can enter. The'obliquity of these rings prevents the heat of the flame from radiating directly on the wick holder.

There are also through the upper part of the ing at H toothed wheels on a spindle H which can be turned by hand for advancing or. retracting the wick. At the point H the wick-tube is united by soldering or otherwise to the edges of two conoidal disks H and H which are stamped in dies to such shape that parts of them form continuations of the three wick-tubes II, while in the intermediate parts I I between these continuations the two thicknesses of metal are close together.

-The conoidal disks H H are supported by the tubes H, which in turn are supported by the cover of the oil-reservoir. At the inner edge H of the two disks they present a complete annular opening occupied by the three wicks, which at this place meet each other, so that together they constitute a complete circular wick, presenting its end at H The wicks being adjusted and trimmed, the deflector E and globe G being fixed up, the chimney O is drawn up as far as permitted by the ring 0 and thus free access from above is given to the wicks, which can then be lighted. When they are lighted,the chimney O is lowered to its working position, and then air entering through the perforations of E and through those at the lower part of the chimney O supplies the flame, which is di rected first downward past the flange D, then inward and up the cylinder D, presenting below the appearance of arosette of light. The cylinder D soon becomes highly heated, so that the air entering by the perforations of the chimney and impinging on D is heated before reaching the interior of the flame, which is thus made to burn with great brillianey.

In order to avoid the necessity for frequent trimming of the wicks, the modification shown by Fig. 1 may be adopted. In this case a ring K, made of asbestus fiber, or, it may be, of porous mineral, against which the ends of the wicks abut, is attached to the wickholder. The oil supplied by the wicks soaks through the ring K, which thus forms the effective annular wick from which the flame starts. When it is desired to extinguish the lamp, it is only necessary to draw the'wicks back from contact with K, so that this is no longer supplied with oil.

Although we have shown three wick-tubes converging from the reservoir A toward the chimney, obviously there might be a greater number of such tubes, as well as of the brackets B and bolts B The lamp, as shown in the drawings, with its chimney exposed, is adapted for being suspended from a ceiling or bracket within an apartment where it is sheltered. When such a lamp is employed in an exposed position, it has necessarily to be inclosed in a lantern or other suitable casing to protect it from wind or wet. When the lamp is employed for lighting a railway or other carriage, all the upper part of the lamp above the reflector A has to be inclosed in a casing provided with suitably-guarded inlets for air and outlets for products of combustion, such as are used generally for railwaycarriage lamps. In another application, Serial No. 325,901, of even date herewith, we have shown a lamp of similar construction to this, but having converging groups of round wicks instead of the fiat wicks herein described.

Having thus described the nature of our invention and the best means we know for carrying the same into practical elfect, we claim- 1. An overhead oil-lamp consisting of an an nular oil-reservoir provided with converging brackets B, a central chimney supported by scribed.

2. In combination with the chimney C,hav-

ing its stop-rings O and C and its bar 0 the.

rings B B bolts B and supporting-brackets B, substantially as and for the purpose set forth.

In testimony whereof we have hereunto set our hands in the presence of two subscribing witnesses.

J. H. ROSS. E. E. ATKINS;

Witnesses:

OLIVER IMRAY, Patent Agent, 28 Southampton Buildings,

London, W C.

JNo. P. M. MILLARD, Clerk to lllessi's. Abel at Iinray, Consulting Engineers and Patent Agents, 28 Southampton Buildings, London, W. O.

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