US501556A - Flash-lam p - Google Patents

Description

(No Model.)

N. H. BROWN.

FLASH LAMP.

Patented Jul 3 118, 1893.

W/T/VESS'ES' UNITED STATES PATENT OFFICEQ NATHANIEL n. BROWN, or NORRISTOWN, PENNSYLVANIA.

FLASH-LAMP.

\ SPECIFICATION forming part of Letters Patent No.'501,556, datedJuly 18, 1893. I Application filed April 8 1893- Serial No. 46 9,504; (No model.)

To all whom it may concern.-

Be it known that I, NATHANIEL I-I. BROWN, a citizen of the United States, residing at Norristown, in the county of Montgomery and State of Pennsylvania, have invented cer-.

ducing an intense or flash light especially for photographic purposes; and it relates more particularly to the general construction and arrangement of the parts of such a lamp.

The principal objects of my invention are first, to provide an attractive, simple, strong, durable, effective and comparatively inexpensive lamp for flashing powdered or granulated magnesium and other substances or materials for producing an intense or instantaneous flame or light for use more particularly in photography; second, to provide a flash lamp so arranged as that the powdered or granulated ignitible or consumable material is automatically fed into the presence of the flame of a wick; third, to provide a flash-lamp in which the consumable or ignitible material of a magazine is automatically fed therefrom by air pressure presented thereto and delivered from an orifice in the middle of an annular flame or torch in mist or cloud form in order to produce an intense light about the same for a varying period of time; fourth, to provide a flash-lamp in which the ignitible material having a gravity fall in a magazine is conveyed therefrom in regulated quantity by means of air forced against the same for presenting the same at the exposed end of the conveyor in the form of a mist or cloud to the annular flame of a torch; and fifth,'to provide 'a flash lamp having the several parts detachably connected with one another in order to permit of repairs and cleaning, and for 'permitting of the handy shipment thereof;

My invention consists of the improvements in flash lamps hereinafter described and claimed.

The nature and general features of my invention will be more fully understood from the following description taken in connection with the accompanying drawings forming part hereof; and in which- Figure 1, is a perspective view of a flashlamp embodying the features of my invention. Fig. 2, is a vertical longitudinal section through the flash lamp embodying the features of my invention as illustrated in Fig. 1; and Fig. 3, is a top or plan view of the perforated wick-holder thereof;

Referring to the drawings a, is a vertical and ribbed conical-shaped standard.

7 b, is a tube having the lower portion thereof contracted as at b, and detachably. secured to the standard a, by means of a screw or stud 12 This tube 19', forming the magazine of the lamp, is provided with an upper reservoir b and with a funnel or conical-shaped device 12 for a purpose to be presently described.

The magazine 19, is provided'with a removable-cap b and with an air-vent b, in the wall or surface thereof. v

Y c, is a curved pipe threaded at one extremity and secured inthe wall. of the magazine soas to be in direct communication with the lower part of the magazine I), and formed integral with or secured to this pipe 0, is an annular fluid wick holder cl, provided with a bottom d, having a series of perforations d therein of preferably the character illustrated in Figs. 1 and 3; and this pipe 0, extends centrally through the bottom 01', to a point at or about flush with the top surface of the wick holder, which is provided with a ribbed and recessed peripheral surface 01 for the reception of a removable cap d.

the exposed end of this tube g, is detachably secured a flexible or rubber tube 1, provided with a detachable mouth-piece j. The air introduced and conducted in volume through the mouth-piece and flexible tube i, upon reaching the injector tube passes into'the lower contracted chamber of the magazine 17, in jet-like form, thereby conveying the ignitible material falling in the path thereof by gravity and in regulated quantity through the funnel or conical-shaped device of the magazine in contact with the jets of air, through the conveying tube a, and dischar ing the same in a vertical direction from the middle of the wick holder in a mist or cloud form in the presence of the annular flame produced by the lighting of the spring supported fluid-wick contained in the holder d.

The flame of the fluid-wick in the holder d, is controlled by an upward draft continually passing through the series of perforations d in the bottom d, thereof for controlling the same. The discharge of the ignitible material may be continued intermittently or successively until the quantity of ignitible material in the magazine I), is exhausted, when by removing the cap I), an additional supply of such material may be charged therein.

The air vent in the wall of the tube or maga- I zine 1), permits of an air chamberbeing formed in the upper part of the magazine and which.

The operation of the flash-lamp hereinbefore described, is as follows:-The magazine b, is filled with an ignitible orconsumable material and the cap b, isseated thereto.- The mouth-piece is then placed between the teeth and the handle it, is grasped by one'of the hands. The wick is then lighted,producing an annular flame. By blowing into the mouth-piece j, the air is conveyed through the flexible tube 2, to the tapering injector tube g, and presented in jet-1ike form to the fine particles of ignitible material falling by gravity into the contracted chamber 17 and conveyed therefrom through the tube or pipe 0, and discharged in the form of a mist or cloud at the exposed end of the orifice c, in the presence of the annular wick flame, thereby producing an intense light for instantaneous photographic purposes and of a duration varying according as the blowing of air by the operator is continued and until the magazine has been exhausted of its contents.

Having thus described the nature and objects of my invention, what I claim as new, and desire to secure by Letters Patent, is-

The combination, in a flash lamp, of a magazine with a detachable cap, an air-vent in the surface thereof and a funnel-shaped device connected with, the detachable base of the magazine and extending vertically into the interior of said magazine, a holder having a radially perforated bottom and central draft .tube extended and connected with the detachable base of said magazine and said base extended and formed into a handle having an internal tapering air injector tube provided with a detachable flexible tube having a mouth piece, and a removable Wick supported 'to position in said holder by means of ahelical or coiled spring, all arranged as shown and for the purposes described.

In testimony whereof I have hereunto set my signature-in the presence of two subscribing witnesses.

NATHANIEL I'I. BROWN. Witnesses:

THOMAS M. SMITH, RICHARD C. MAXWELL.

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