US921038A - Ceiling-rosette for drop electric lamps. - Google Patents

Description

Patented May 11, 1909.

W. WILBRAHAM-` CEILING EOSETTE POE DROP ELECTRIC LAMPS. APILIOATION FILED JULY 14, 1908.

Uhr i. nir; winni.;

WILLIAM WILBRAHAM,

OF CHICAGO,v ILLINOIS.

CEILING-RQSETTE FOR DBO? ELECTRIC LAMPS.

Application led July 11.1., 1908.

used vo connect the electric lamp cord to the ceiling in the wiring Werl; i'or lighting buildings and has lor its object to simplify the construction work, save cost and to produce a neat rosette and one that will be saler Yfrom a i'ire standpoint than the rosettes hereto- '['ore used.

teierence will be hadv to the accompanying drawing in which,

Figure l is a top plan view oi' my invention and Fig. 2 is a side sectional view. Fig. 3 is a side elevation.

In the drawing A indicates the rosette which may be any suitable bloei; ol' porcelain or other suitable material made in any ornamental shape but I prefer to use the shape here shown. In this block A there is a cavity B into which there extends a side cavity C. As an extension oil cavity E there is a smaller cavity l) extended through the block and provided with a shoulder E adapted to tit the under side ol' a screwhead l` ol' a screw G, which extends upward into an expansion nut Il set into a concrete ceiling I, but the screw G may be used to secure the rosette to any ceiling. A rim d on the edge of the cavity K causes the rosette to bear on the outer edges o'l the rosette and bear i'irmly on the ceiling without rocking which is a desideratum.

The electric lamp cord or wires L come along the ceiling and are passed through the hole or aperture C into the cavity B and then drop downward to the lamp M thus allowing the simplest construction possible.

In all other rosettes of this class heretofore used it requires two or more screws to hold them upward to the ceiling and in concrete work this is expensive and also it does not make as good a job, and in other instances a wooden block is iirst screwed to the ceiling permanently and then the rosette is detachablyiixed thereto which is made necessary to properly iin the wires to the rosette. Further With two or more pieces to the rosette Specification or Letters Patent.

EatentedMay 11, 1909.

Serial No. 143,55).

i it affords an abode for insects that is objectionable and they are not as safe from a fire standpoint.

Y"d'vhat I claim is,

I. il rosette consisting of a block oic insulating material having an axial passage extending through the block and a lateral per forati-on in the wall of the passaffe, said pas sage being provided with an in te al shoulder above the lateral perforation to receive the head or an attaching` screw,V` inserted in the pa whereby the blocl may be securer y to wall bysuoh screw and a conductor may be if. d through the perforation and the-noe don nward in the open portion oi the substantially set forth.

2. e. rosette consist" r ot a single piece et insulating material haring a marginal rim to bear agai ceiling7 having also an axial screw resolving pa ge extending from top to bottom and enlarged below to permit the screw head to enter the blool-. to some distance7 and iurtner ha' the lateral wall el the enlarged portion of said passage provided with a perforation for the passage of an electrical conductor, substantially as set `forth.

S. A. rosette or the class described composed oi a one piece block having a vertical the block said opening being larger .trom the bottoni upward to the interior oi" the block and then restricted to torni a shoulder for a screwhead the balance oi the opening being the proper size for a screw body 5 and further having a horizontal or lateral opening in the side ot the block extending into the larger portion ci the opening below the screw head shoulder and also having a hearing rim on the outer i'ieriphery of the block adapted to bear on the ceiling, combined with a screw and an expansion nut Vtor fastening the rosette to the ceiling and an electric lamp oord extending through the horizontal opening and down through the enlarged portion ot the vertical opening described.

In witness whereof l have hereunto signed my name in the presence ol two subscribing .vitnesses on this 9th day of July, 1908.

'TTILLIM Y'slTILBL?.grilli-@xiti.

i/Vitnesses JOHN GRANT,

Il. D. LEE.

central opening extending entirely through

Images