US1349483A - Lamp-fixture - Google Patents

Description

F. YOKEI..

LAMP FIXTURE. APPLICATION FILED FEB. I9, ISI?.

1,349,483. Patented Aug. 10, 1920.

WITNEssEs /3 \/7 Miha/VWM UNITED STATES ears FRANK YOKEL, 0F PITTSBURGH, PENNSYLVANIA, ASSIGNOR T0' PITTSBURGH LAMP, BRASS & GLASS COMPANY, OF PITTSBURGH, PENNSYLVANIA, A. CORPORATION 0F NEW JERSEY.

recense.

Specification of Letters Patent.

Patented aug. 1o, aseo.

Application filed I .Pebruary 19, 1917. Serial No. 149,441.

tures', of which the following is a specification.

My invention relates to lamp fixtures and more particularly to electric lamp' fixtures of that type which has a pivotally adjustable shade carrying a lamp within it.

The objects of the invention are to provide means of a simple and ellective construction for supporting both the shade and lamp and enabling the shadeto be pivotally connected to a suitable coupling or bracket, and also providing a conduit for the electric wire cord, all without requiring the formation of a hole for the support of the wires through the body of the shade and without requiring the use of trunnions tp carry the shade, while at the same time permitting the support and cord carrying member to enter the shade at the rear face thereof, and the lamp to be supported with its axis extending parallel to the longer axis of the shade, and also enabling the exterior contour of the shade to be preserved unmarred by the projection of the supporting means and enabling all parts 'of the supporting means for the shade and the lamp, with the exception of a small' part of the shade clamping plate, to be inclosed within the boundary or the shade, thereby increasing the si htliness of the fixture.

Wit i these objects and others in view, my invention is embodied in preferable form in the construction hereinafter described4 and illustrated in the accompanying drawing.

In these drawings,

Figure 1 is a rear view in elevation, partly broken away, of my improved lamp fixture and taken on the section line 1-1 of Fig. 2.

Fig. 2 is a horizontal section partly 1n plan.

Fig.' 3 is a detail sectionon the line 3-3 of Fig. l.

F ig. 4 is a detail front elevation of the lock nut and part of the lamp bracket.

Referring to the drawings, l1 indicates the lamp shade which is of substantially semielliptical outline and hollow in form, and which is provided with a single opening 2 for the admission of the supporting means for the shadeand the lamp. This opening is formed the rear face only of the shade and 1s preferably of `semi-elliptical form.

, Extending through'this opening is the main supporting means 2 having a threaded stem 3 projecting within the interior of the shade and which member is provided at its outer end with one element 4 of a ball and socket joint, the other element 5 of which forms part of the screw plug 6 which is adapted to bev engaged with a standard wall plate or bracket or other suitable means of support;

7 is an inner clamping nut adapted to lock the two elements together to hold the supporting member rigidly in adjusted position. The screw plug and the supporting member are tubular in form to permit the passage` therethrough of the lamp terminal cord 8. f

Bearing against the shoulder 9 formed on vthe supporting member is a flanged clamping plate 10 of semi-elliptical form, to conform to the shape of the opening 2, and the flange on the curved portion of which is adapted to bear against the rear face of the shade and to take over a similarly curved flange 11 formed on the rear face of the shade and projected outwardly therefrom. The curved flange of the plate 10 is con tinued into a wider straight flange or lip extending across the lower edge of the opening 2 and adapted to engage the adjacent border portions of the shade, as shown in Figs. 1 and 2. A.

On the threaded stem 3 within the lamp shade is mounted a complementary clamping member 12 also consisting of a flanged semi-elliptical plate and which has the upper curved art thereof provided with a short flange bearing against the inner face of the shade and has the lower straight edge thereof provided with a lip 13 which projects below the border of the shade and is adapted-t0 take over the straight flange of the clamping member 10. rlhreaded on the tween the two clamping members 10 and 12, l

- and thus hold the shade firmly on the supporting member.

rlhe inner end of the stem 3 is attened at 15 and such portion is adapted to be en-.

gaged by the inner apertured end of an arm 16 of a lamp carrying bracket, such flat portion serving to prevent the arm from turning. The arm 16 is held rigidly in place on the threaded stem by and between nuts 17.

This bracket arm extends parallel to the longer axis of the lamp shade and at its end is bent at right angles to form the arm 18, to the end of Which the lamp socket 19 is secured. The lamp socket and the lamp 2O construction for supporting both theJ shade and the lamp is provided.

VVhatl claim is 1. A lamp ixture including a shade having a border opening in the rear face thereof, a lamp, exterior and interior shadel clamping plates covering the opening, a

.combined shade .and lamp supporting tubular member having a threaded stem portion extending through said clamping plates and into the interior of the shade, locking means mounted on and coperating with the threaded stem, and a. lamp bracket secured to the stem and inclosed Within the boundaries of the shade. v

2. A lamp fixture including\ a shade formed With a border opening in the rear face thereof, a lamp, exterior and interior shade clamping plates covering said openg, a supporting member having its outer end provided with a pivoting element and a threaded portion extending through said infr clamping plates to the interior of the shade, a lock nut mounted on the threaded portion, and a lamp bracket securedto the supporting member and inclosed Within the boundaries of the shade.

i 3. A lamp iixture including a shade having an opening in the rear face thereof, a combined shade and lamp supporting member .extending through 'the shade opening, -said member havinga threaded portion and a attened portion, anl exterior clamping plate on the supporting member, an interior adjustable clamping plate on the supporting member, locking means cooperating with the threaded portion, and an angular lamp bracket connected with the flattened portion of the supporting member.

4. A lamp fixture having a shade, a border opening in the rear face of the shade, a supporting member extending through said opening, shade clamping members engaging said shade and mounted on said member, said supporting member having a threaded stem extending into the interior of the shade, and a lamp bracket mounted on the inner end of said stem.

5. A lamp xture having a shade provided with an opening 'formed therein from the border upwardly in the rear face of the shade, the edge of the shade being uninterrupted in contour except for said opening, said shade having a flange along the border of said opening,l an exterior clamping plate conformed to the contour of the shade and having a flange adapted to engage said shade iiange, an interior shade clamping plate hav- 'ing a lip to engage said outer plate, a supporting member extending through said plates, and clamping and locking means' for said plates mounted on said member.

ln testimony whereof I affix my signature in presence of two Witnesses.

FRANK YKEL. lVitnesses Lors WINEMAN, ALICE B. DICE.

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