US690275A - Lamp. - Google Patents

Description

w. s. HAMM.

LAMP.

(Application filed Apr. 20, 1901.)

(liu Model.)

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UNITED STATES PATENT OFFICE.

WILLIAM S. HAMM, OF CHICAGO, ILLINOIS, ASSIGNOR TO ADAMS da WESTLAKE COMPANY, A CORPORATION OF ILLINOIS.

LAM P.

SPEGLFMZAIIIINF forming part of Letters Patent N o. 690,275, dated December 31, 1901.

Application leii April 20, 1901.

To all whom, it may concern:

Be it known that I, WILLIAM S. HAMM, a citizen of the United States, and a resident of Chicago, countyT of Cook, and State of Illinois, have invented .certain new and useful Improvements in Lamps, of which the following is a specification, and which are illus: trated in the accompanying drawings, forming a partV thereof. A

My invention relates to improvements in lamps, and is particularly adapted for `use in burning acetylene gas, which requires a thor'- ough ventilation of the lamp in order that the gas led to the burners may not become heated before being consumed, although, as will be obvious, it may be employed for burning ordinary illuminating-gas.

The lamp is of the type known as wall or panel lamps, being designed to be placed along the paneling or side of railway-cars, for which purpose the present invention has especial reference, or against the wall of a chamber or other room.

The objects of the invention are generally to provide an ornamental and attractive lamp which shall be simple in construction and compact in form, so as to utilize as little space as possible, and one which may be successfully used for burning acetylene gas.

The invention consists, in general terms, in a body comprising a concave reflector and a glass front, the two forming a flame-charnber and being spaced apart at their edges to provide ample ventilation.

It consists, further, in various details of construction relating to the 'lamp-body and its means of support, as hereinafter disclosed.

The embodiment of the invention is illustrated in the accompanying drawings, in which Figure 1 is a vertical section of the lamp. Fig. 2 is a side and Fig. 3 a front elevation, respectively, of the lamp. Figs. 4 and 5 are details of construction, the former showing the hinge for the front or lens part of the lamp and the latter the latch or catch for securing the lens when closed.

The essential parts of the lamp consist of a concave reflector 10 and a glass front 11, preferably of the same contour as the reflector, providing between them a flame-cham- Serial No. 56,750- (No model.)

VWhile with View to symmetry the flange 16 is continued entirely around the lamp, the upper portion only is depended upon for the performance of the function mentioned.

The reflector 10 and the front 11 are suitably spaced at their edges, as illustratediu Fig. 1, to insure a proper ventilation all around the lamp, thus providing for the ready entrance of air at the bottom and sides and the equally ready escape of the heated air and products of combustion at the top.

The front 11 is carried bya frame consist -ing of a band 17,' having its inner edge olfset, as at 18, to form a seat for the glass, the outer member 19 of the frame being'riveted or otherwise suitably secured to the band 17, and an insulating-band 20 is interposed between the member 19 and the edge of the glass.

In order to avoid the interference of drafts of air with the llame, a band 21 isinterposed in the Ventilating-space between the reflector and the edge of the front and is held in position by brackets 22, secured to the flaring flange 16, which in addition to supporting the band 21 also provides means for spacing the reflector and the front, the frame of the latter when closed resting against their free ends. The band 2l is V-shaped in crosssection, the apex of the V being pointed into the iiame-chamber. By this arrangement and construction the band 2l not only serves to prevent the emission of light through the ventilatingspace, but it also breaks up the aircurrents entering at the sides and bottom of the lamp, so that the flame will not be disturbed by drafts. It is aided in attaining this result by its peculiar formationthat is to say, because of its channeled form it is more effective in breaking up the air-currents entering from the outside than would be a flat ring, and, on the other hand, its diverging walls offer little resistance to the escaping heated air and products of combustion, so that a constant and thorough circulation is always kept up.

The lamp is attached to the wall or panel of the car or room by a ring 23 of sufiicient width to properly space the back of the lamp or reflector l0 from the wall or panel and provide an air-space to prevent the scorching of the woodwork.

Attached to the outer edge of the ring 23 are two or more brackets 24, which receive the outwardly-extending flange I6 of the reflector 10, a layer 25 of bezinnen-conducting material, such as asbestos, being interposed between the flange 16 and the brackets and the three parts being secured together by screws 26, which also enter and secure the brackets 22,supportingthe deflecting-band'Zl. If desired, the brackets 24 may form lugs of a ring of the same configuration as the flange 16, as shown. The ring 23 may have a series of apertures closed by jewels 27, and for the purpose of ornamentation and for adding to the attractiveness of the lamp provision is made forillu minatin g these jewels', asby cutting in the reflector l0A near its edge a series of openings 28. By means of the brackets 24 the reflector l0 is spaced from the ring 23, whereby ample ventilation is provided to carry off the heat conducted through the reflector.

The front glass frame is hinged at 29 at the side to an arm 37, projecting from one of the brackets 24, and at the opposite side is provided with a spring-catch 30, which engages,when the front is closed, one wall of the band 2l. A finger 31 passes through an aperture in the bracket 24 at that side of the lamp and is provided with a head 33 and a flange 34 to prevent-itfrom being withdrawn or falling out of the bracket. Theinner end of this finger is beveled, as shown at 32, and au inthrust of the finger against the spring-catch 30 disengages the latter from the band 2l. The gas is controlled by a key 35, projecting through an aperture 36 in the ring 23.

While I have described and illustrated my lamp as elliptical in shape, its general form is immaterial and may be varied as desired.

I claim as my invention- 1. In a lamp, in combination, aconcave reflector, and a glass front covering the face of the reflector and forming therewith a damechamber, the reflector and front being spaced apart to provide a passage constituting the air-induction port and smoke-flue of the lamp.

2. In a gas-lamp, in combination, areflector, a glass front spaced at its edge therefrom, and providing a passage therewith constituting the air-induction port and smoke-flue of the lamp; and a deflecting-flange integrall y with the reflector and extending over the .glass front at the top of the lamp, the edge of flange formed on the reflector and projecting over the space between the reflector and the edge of the front, the edge of the reflector overhanging such passage at the top.

4. In a gas-lamp, in combination, a reflector, a glass front spaced therefrom and forming with the reector a flame-chamber, and a defiecting-band supported, in the space between the front and the reflector.

5. In a gas-lamp, in combination, a reflector, a glass front spaced therefrom and frming with the reflector a flame-chamber, and a band supported in the space between the front and the reflector, and having its outer face channeled.

6. In a gas-lamp, in combination, a reflector, a glass front spaced at its edge therefrom and forming with the reflector a flame-chamber, and a band supported in the space between the edge of the front and the reflector, the band being V-shaped in cross-section and the walls thereof diverging from the flamechamber.

7. In a gas-lamp, in combination, a concave reflector, a glass front spaced therefrom and forming with the reflector a flame-chamber, a flange projecting over the space between the reflector and the front, and a deflectlng-band supported in the space between the reflector and the front.

8. In a gas-lamp, in combination,- a concave reflector, a glass front spaced from and hinged'thereto and forming with the reflector a flame-chamber,and brackets for spacing the front and the reflector, the front,when closed being seated against the spacing'braekets'.

9. In a gas-lamp, in combination, a concave reflector, a glass front forming with the reflector a flame-chamber, a ring, and means for securing the reflector to and spacing it from the ring, the said ring being located at the rear of the reflector and interposed between the lat-ter and the wall or other support to which the lamp may be secured.

10. In a gas-lamp, in combination, a concave reflector, a glass front forming with the reflector a flame-chamber, an apertured ring, means for securing the reflector to the ring, the said ring being located at the rear of the reflector and spacing the same from the wall or other support to which the lamp may be secured, andapertures through the reflector for admitting light from the flame-chamber to the interior of the ring.

11. In a gas-lamp, in combination, a concave reflector, a hingedglass front spaced at its edge from and forming with the reflector a flame-chamber, a flange projecting from the IIO reflector and over the space between the re- Ilector and the front, brackets secu red to the flange and against which the front is seated when closed, and a band supported by the 5 brackets in the space between the reflector tween the reilector and the edge of the front, a deIlecting-band supported in the space between the front and the reflector, a catch carried by the front for engaging the delectingband, and a pin for disengaging the catch from the deecting-band.

14. In a gas-lamp, in combination, a reflector, a glass front covering the face of the reflector and forming therewith a flame-chamber, a Vent for the products of combustion at the top of the flame-chamber, and a hood projecting forwardly over the flamechamber vent for deflecting the vapors away from the wall.

WILLIAM S. HAMM. Witnesses:

E. M. KLATOHER, LOUIS K. GILLsoN.

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