US426023A - Michael jljinsky - Google Patents

Description

(No Model.

M JLJNSKY. PETROLEUM LAMP POB. PHOTOGEAPEIG PURPOSES.

Pate'nthedApr. 22, 1890.

INVENTOR:

WITNESSES:

ma new; Pneus no., wam-umu., msnmmon, n. cA

UNITED STATES PATENT OEEICE.

MICHAEL JLJINSKY, OE CHARLOTTENBURG, PRUSSIA, GERMANY.

PETROLEUM-LAMP FOR PHOTOGRAPHIC PURPOSES.

SPECIFICATION forming part of Letters Patent No. 426,023, dated April 22, 1890.

Application led March 23, 1889. Serial No. 304.475. (No model.)

To all wiz/0m, t may concern;

Bc it known that I, MICHAEL JLJINSKY, a subject of the Emperor of Russia, residing at Charlottenburg, near Berlin,Prussia, Germany, have invented certain new and useful Improvements in Petroleum-Lamps for Photographic and other Purposes, of which the following is a specification.

` The object of this invention is to provide a lamp for photographic purposes which by its peculiar construction combines a number of properties not heretofore combined in any lamp, and which will be of great value to photographers. This new lamp burns ordinary petroleum-oil and is intended to be used for all work which is performed in a photographers dark-room, as well as for illuminating in the common way, and also for enlarging pictures in the camera. It is very convenient and effective for producing hash-light with magnesium powder, which heretofore has not been accomplished with a petroleumlamp. While possessing these properties, it is also a compact and simple lamp for traveling, as it can be safely packed even when iilled with petroleum,which is prevented from leaking out by means which are provided for that purpose.

Figure l is a vertical axial section cut in the plane of the line l 1 in Fig. 2. Fig. 2 is a plan, partly in horizontal section, cut on line 2 2 in Fig. l. Fig. 3 is a detached vertical section, on a large scale, of the magnesiumflash device.

Let A represent the lamp, B the burner, and C the chimney. Upon the petroleumbasin a is screwed at b an Argand burner of any known construction. The lower portion of the wick occupies a concentric sieve-cylinder c, mounted on the bottom of the basin a. The ring-shaped space between the sieve c and the wall -of the basin a contains an elastic absorbent material d--such as common sponge--which is saturated with petroleum, and upon. which rests the metal ring c, bearing two vertical rods g g, which latter slide through suitable openings in the footplate f of the burner, and can be arrested in any position and released. again by a locking device g of any suitable construction.

Then using the lamp, the ring e is forced down upon the sponge dby pushing down the rods g, and the petroleum is thereby driven out of thc sponge d and caused to flow through the sieve c to the wick and to feed the iiame.

Then the lamp is to be prepared for travcling, the ring e is drawn upward by raising the rods g g, and the sponge d is relieved of the pressure of the ring c, and will again soak up or absorb all the petroleum, so that even 6o in upsetting the lamp no fluid will leak out of the latter.

The lamp is provided with a clear glass chimney having a neck, (shown in dotted lines at O,) and for dark-room work it is provided with a cylindrical chimney C of a ruby or other color. In packing thelamp in a box or case the clear chimney C', the upper portion of which is smaller than the lower part, is pushed into the ruby chimney C. A cylin- 7o drical shade 'L' surrounds the perforated basket 7L of the burner, descending low enough to interrupt any white light which may shine through the openings of the basket.

The application of a light-intercepting cap C on top of the ruby chimney completes the arrangements for adapting the lamp for use in the ldark-room. Vhen the ruby chimney is replaced by the clear one, the lamp is ready for all purposes for which a clear light may be So used. For copying and magnifying a more intense light is required, and this is attained by the employment of a reflector g', the stem p of which is supported by the socket r, provided in a suitable place on the shade c'. 85

lleretofore a magnesium Hash-light has not been produced by means of a petroleum-lamp. My new lamp produces such light with the greatest ease and with a very small quantity of 1nagnesium-powder. A narrow pipe j, pen- 9o etrating from outside the burner-basket 7l, terminates at an acute angle flush with the burner-ring 7.1, and is connected at the lower end with a device Z for containing' the magnesium-powder and for delivering it to the air-stream of any convenient blowing device. Upon the short tube fm, one end of which is connected with the pipe j and the other end of which is connected by a rubber hose with a blower or pneumatic bulb, (shown in dotted loo lines at 11,) is mounted a measuring or distributing cock n, which is in communication with the magnesium holder orfunnel o. The plug of the cock n contains two recesses opposite each other and corresponding with the funnel 0 and with the canal leading from the cock fn, to the tube fm. Each recess in the plug serves as a measure for the magnesiumpowder and has a capacity which is sufficient for one flash.

The operation of the device is as follows: After having inserted a quantity of-the magnesium-powder into the funnel o and closed its cover, the plug, the upper recess of which has been filled with powder, is turned onehalf of a revolution, so that this recess is brought to the lower side of the plug, wherei upon the magnesium-powder contained in this recess will drop out of the recess and fall into the tube m. A stream of air forced through the tube m will blow the powder through the pipejinto the flame of the lamp, whereupon the powder will ignite and produce a brilliant iiash of light, by which instantaneous photographs can be obtained. In such aprocess the lamp is used iirst for illuminating the object to be photographed, so that the focusing can be made, and then for iiashing.Y

of the instantaneous iiashing process heretoforensed. Therefore pictures taken with my new lamp represent the persons more at ease and more natural than those taken with flashing apparatus at present in use. The burnt magnesium or the magnesia-dust is deposited on the inside wall of the chimney, from which it can be easily removed when desired, and therefore it is not annoying in the least. While the lower recess of the plug is delivering its contents, the upper recess is being filled with powder, so that by a half-turn of the plug and the further operation of the airblower a second flash may be produced, if desired. The operator is therefore enabled at will to produce only one or a series of flashes, as the work requires.

Although I prefer to use a sponge for absorbing the oil in the oil-vessel of the lamp, any other elastic absorbent material may be used instead-such, for example, as loose or braided cotton, excelsior, wool, or strips of clot-h.

For the sake of completeness the boX or canister in which the lamp is packed for transportation contains separate compartments for storing the rubber hose and a bulb or any other air-forcing apparatus and a boX for the magnesium-powder.

Having thus described my invention, what I claim as new, and desire to secure byLetters Patent, is the following-defined novel features and combinations, substantially as herein set forth and shown, namely:

1.7In a lamp, the combination, with the oilvessel and the wick, of an elastic absorbent material within the oil-vessel and means for compressing such absorbent material, whereby when the latter is free from pressure the oil is absorbed within the material, and when it is compressed the oil is driven out thereof and feeds the wick.

2. In a lamp, the combination, with the oilvessel and the wick, of an elastic absorbent material within the oil-vessel and means for compressing such absorbent material, whereby when the latter is free from pressure the oil is absorbed within the material, and when it is compressed the oil is driven out thereof and feeds the wick, and a wick chamber within said oil-vessel and separated therefrom by a perforated wall, whereby the wick and said absorbent material are kept out of contact each with the other. l

3. In a lamp, the combination, with the oilvessel and the wick, of an elastic absorbent material within the oil-vessel and a presserplate in said oil-vessel and adapted to act against such absorbent material, and a presser-rod for moving such presser-plate against and from such material, whereby upon moving the presser-plate against such material the oil will be discharged therefrom and will feed the wick, and on moving the presserplate away therefrom the oil will be absorbed thereby and be removed from contactwith the wick.

et. In a lamp, the combination, with the oilvessel and the wick, of an elastic absorbent material within the oil-vessel and a presserplate in said oil-vessel and adapted to act against such absorbent material, and a presserlrod for moving such presser-plate against and from such material, whereby upon moving the presser-plate against such material the oil will be discharged therefrom and will feed the wick, and on moving the presserplate away therefrom the oil will be absorbed thereby and be removed from contact with the wick, and a catch for locking said presserrod in position.

5. In a lamp, the combination, with the oil vessel, wick, and burner, of a perforated basket surrounding the burner and a shade surrounding such basket and adapted to interrupt the rays of light which escape through the perforations thereof.

6. In a lamp, the combination, with the burner, of a Hash-light tube extending from the exterior of the burner and terminating adjacent to the iiame, and a receptacle for the flash-powder communicating .with said tube and adapted to deposit the iiash -powder therein, and a valve between such receptacle and said tube for controlling the admission of flash-powder into the latter.

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7. In a lamp, the combination, with the p burner, of a dash-light tube extending from the exterior of the burner and terminating adjacent to the flame, and a receptacle for the dash-powder communicating with said tube and adapted to deposit the ,iiash powder therein, and a Valve between such receptacle and said tube for controlling the admission of Hash-powder into the latter, having a measuring-recess for delivering said powder and movable to bring said recess into communication With said receptacle When the Valve is in one position and with said tube when in another position.

8. In a petroleum-lamp for photographic purposes, the petroleum of which is contained in an elastic absorbent inateriahthe combination, with the oil-vessel and burner, of a clear

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