US543639A - Flash-light machine - Google Patents

Description

(No Model.)

L. G. BIGELOW. FLASH LIGHT MACHINE.

Patented July 30, 1895.

UNITED STATES PATENT OFFICE.

LYMAN G. BIGELOW, OF ST. JOSEPH, MISSOURI.

FLASH-LIGHT MACHINE.

SPECIFICATION forming part of Letters Patent No. 543,639, dated July 30, 1895.

Application tiled March 4, 1895. Serial No. 540,541. (N o model.)

To all whom t may concern;

Be it known that I, LYMAN G. BIGELOW, a citizen of the United States, residing at St. .Ioseph,in the county of Buchanan and State of Missouri, have invented certain new and useful Improvements in Photographic Flash- Light Machines; and I do declare that the following is a full, clear, and exact description of the invention, which will enable others skilled ih the art to which it appertains to make-and use the same. l

Heretofore the only machines which have proven successful for portraiture have consisted of a cluster or combination of separate lights arranged to be flashed simultaneously, an arrangement bulky to handle and transport, besides requiring complicated mechanical devices to secure simultaneous flashes when used.

By my invention the requisite power of light is secured by a muchvsimpler mechanical construction, absolutely certain in operation, cheaper to construct, and more convenient to use.' l

By reference to the accompanying drawings, Figure 1.is a front elevation of the device. Fig. 2 is a cross-section taken on' the indicated line 2 2 of Fig. 1 and looking in the direction indicated bythe arrow A. Fig. 3is a cross-sectional view taken on the line 3 3 of Fig. 1 and looking in the direction indicated by the arrow B. Fig. 4 isv an end elevation ot' the device.

1 l are the end frames or standards; 2, the burner-tube, having the perforations 3 and closedV at the ends by the caps 4.

. 5 is a gasoline gas-generator; 6, a tube, 7, an elbow; S, a collar; 9, a set-screw, and 10 a supporting rod or standard.

11 is a vertical tube leading from the tank 12 and provided with a cut-0E valve 13.

14 is a perpendicular metal plate used as a flash-pan; 15, a wire rod to which it is secured;

16, a V-shaped trough; 17, a bell-crank attached to one end of said trough; 18, a cylinder; 19,the inlet-pipe thereto, and 2O a flexible tube leading to the operating-bulb.

21 is the piston or plungervhaving en -.its

lower end the piston-head 22.

23 is the connecting-rod from the bell-crank 17 to the piston-rod 21.

To operate the machine the requisite amount of flash-powder is placed in the trough 16, being laid in a train its whole length. The valve 13 is now opened and the gasoline allowed to tiow to the generator 5. The gasoline is now lighted at the generator, and in a few seconds the'tube-burner may be lighted at the perforations 3, which extend the whole length of the machine. To cause a Hash give a quick strong pressure on the bulb, which will cause the air to pass through the liexible tube 2O to the air-'cylinder 1S, which with its pistou and crank connection with the powder-trough 16 will cause the trough to make a quarterturn toward the Hash-pan 14. The powder is thrown from the trough violently against the flash-pan, thus causing its grains to be thoroughly separated before falling to the exploding-jets 3.

Having now fully described my invention, I desire to secure by Letters Patentl. A perpendicular, continuous iiash-pan and reflector combined and in conjunction with a continuous powder trough which in its operation acts as a disperser or separator of the grains of powder before allowing the powder to come in contact with the exploding iire.

2. The combination of a continuous perpendicular dash-pan; a continuous powder trough and a series of flame jets immediately beneath the powder trough, all substantially as described.

LYMAN e. BieELow.

Witnesses:

ABRAHAM E. GUY, HARRY W. MANNING..

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