US791355A - Street-lamp. - Google Patents

Description

PATENTLD MAY 3o, 1905.

R. MOMAND. l

:STREET LAMP.

APPLICATION FILED JULY 2. 1904.

ivo. rrentas.

UNITED STATES Patented May IS, 1905.

PATENT OEEICE.

RAGLAND MOMAND, OF NEW YORK, N. Y., ASSIGNOR TO AMERICAN STREET LAMP t SUPPLY COMPANY, OF NEW YORK, N. Y.

STREET-LAMP.

SPECIFICATION forming part of Letters Patent No. 7 91,355, dated. May 30, 1905. 4 Applicatioil filed July 2,1904. Serial No. 215,069.

To all whom it may concern:

Be it known that I, RAGLAND MoMAND, a

citizen of the United States of America, and a Vice is produced possessing the following charaoteristics: lirst, a verticallyeadjustable flue supported by radially-adjustable arms over the upper -peripheral edge of the globe; second, a dome supported by avcircular flange' suitably held near the upper end of the globe and havinga llexible serrated band impinging against the globe to yieldingly centralize the latter to permit the passage of an updraft of air and to keep out insects from the lamp.

In the drawings accompanying this application, Figure 1 is an elevation of my improved street-lamp, partly in section; and Fig. 2 is a detail plan view of the radially-adjustable flue-support. r

The letter A indicates a tubular casting or formation comprising a mount adapted to be fitted upon a hollow post B and elevated thereby.

C indicates a gas-supply tube passed through the post B and mountA into the globe above, where it is connected with a burner. Said burner D isnot here described, being the subject of a separate concurrent application, and, as is obvious, for the purpose of the present invention other suitable'forms of burner may be employed. 'l

Fitting within avertical recess in the upper end of the mount A is a tubular shank that depends from a circular base-plate E, which is provided with an orice b to receive an igniting-torch, the said orifice being closed with a hinged plate e2, that may be perforated to serve as an air-inlet. The shankis secured within the mount A by set-screws 3.

An annular recess is provided in theupper surface of base E to receive a plug E, which has a central orifice, allowing it to pass over the gas-su pply tube C, said plug F when seated in the recess aforesaid serving to locate said gas-su pply tube C centrally within the lamp and to prevent it from lateral movement, thereby steadying the burner. It is intended that the orifice in the plug E be of suitable diameter to lit fairly snugly over the gas-supply tube C.

G indicates thelamp-globe, which, as seen, is of cylindrical form, being contracted at its lower end, as at g, andthere adapted to lit about a recessed seat prepared therefor in the peripheral edge of the baseE.

A tubular member H is disposed centrally above the mantle I of the burner, being held in that position by means of eXtensible radial arms that engage with the upper peripheral edge of the globe G.. Said extensible arms are formed each of the members 71.' 71,2, that are slidably connected, the members 71. being secured to the member I-I and the members 7b2 having their outerends downwardly turned to lap down over the edge of the globe. The tubular member H is provided with an inclined slot 7a3, extending upwardly from its lower edge, the lower boundary of said slot having a series of serrations forming individual sockets laf. A liue, as J, is slidably tted within the member H and is provided with a radial stud or pin j, adapted to enter the slot h3 and to lie within-any one of the sockets to support the flue thereby at a predetermined height above the mantle I. The vertical position of said flue is to be determined according to the air-draft conditions of the lamp and, as is obvious, will be regulated by adjusting theflue so that its stud or pin j' rests said flange being held in its position by vertical supports /c 7c. I preferably employ four of these supports, of which only two can be shown in the drawings, this being a sectional elevation. Said supports are here shown as circular rods bent inwardly at their lower ends and there threaded through holes prepared therefor in lugs a a, where they are secured by nuts a ci. The upper ends of rods 7c k are threaded and screwed into bosses which depend from the under side of the flange K, thereby supporting said flange.

Secured, as by screws Z, to the interior surface of flange K is a circular band of flexible metal or other material-L, the lower edge of said strip being serrated and the teeth Z thus formed being inturned to bear yieldingly against the outer surface of the globe. The tension exerted by the teeth Z' against the globe serves to prevent rattling of the latter, which would occur if said globe were loosely fitted within a flange, as K, of slightly greater diameter than itself. Further, the spaces between the teeth Z serve for the intake of' atmospheric air to provide an updraft for the lamp, while at the same time said spaces are too small to permit insects to pass therethrough and enter the lamp.

A concentric groove is provided in the upper Surface of the flange K and is adapted to receive the lower edge of a dome M to support the latter. Exteriorly of the outer wall los of groove 762 is provided a concentric shoulder kf, adapted to receive the lower edge of a circular band 705, which forms a street-sign, and thumb screws m, passed through said sign and wall, impinge against the dome to secure both sign and dome in position.

Nindicates the usual ventilator or draft cap, which is mounted upon the dome, as seen.

Having now described my invention, I declare that what I claim is" 1. The improved street-lamp comprising a tubular mount adapted to fit upon a post, said mount having radial lugs provided with vertical apertures, a base-plate having a torchopening and a hinged cover for said openings, said base-plate having a depending tubular shank adapted to fit within the mount, a globe resting upon said base-plate, an annular flange disposed near the Lipper portion of the globe,

bosses at the under side of said flange, and vertical rods screwed into said bosses, the lower ends of said rods heilig inwardly contraeted and fitting in the aforesaid lugs, together with a dome supported by said flange, and means for centering the globe, permitting the passage of air through the lamp, and preventing the entry of insects.

2. In a street-lamp having a Bunsen burner with incandescent mantle, a lamp mount and base supporting the globe, a fixed tubular sheath disposed centrally above the mantle. and supported by slidably-adjustable radial arms over the upper edge of the globe, aflue slidable within said sleeve, and means supporting said flue in an adjusted position above the mantle.

3. In a street-lamp, asupport for the burner thereof and an inclosing globe, a circular ange supported near the upper portion of said globe, and a concentric band of flexible material secu red to said flange, said band lying intermediate said flange and the globe and being in continuous contact at one edge with the flange, the opposite edge of said band having a series of seri-ations adapted to bear yieldingly against the globe to stead y the latter, the spaces between said serrations and the globe-surface affording passages for atmospheric air, but being too small to permit insects to enter the lamp.

4. In a street-lamp, a support, a series of rods upstanding from said support, a burnerinclosing globe disposed between said rods, a circular flange supported by said rods exterior to the globe, near the upper end of the latter, said flange having an annular groove in its upper surface, a dome whose circular edge is supported within said groove, a detachable circular sign-band supported by said flange exterior to the groove in the latter, and setscrews passed through said sign-band, a wall of the groove in the flange, and iinpinging against the dome to retain both sign-band and dome in position.

Signed at New York this 22d day of June, 1904.

RAGLAND MOMAND.

Witnesses:

F. W. BARKER, R. A. ETHnRsoN.

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