US1526686A - Double-locking holder for lighting fixtures - Google Patents

Description

Feb. 17. 1925.

F. W WAKEFIELD DOUBLE LOCKING HOLDER FOR LIGHTING F IXTURES Filed Feb; 1922 @MQ Q Patented Feb. 17, 1 925.

UNITED? STATES FREDERICK W. WAKEFIELD,

I 1,526,686 PATENT OFFICE.

or VERMILION, OHIO, ASSIGNOR TO THE r. w. WAKE- FIELD BRASS COMPANY.

DOUBLE-LOCKING HOLDER, FOR LIGHTING FIXTURES.

Application filed February 17, 1922. Serial No. 537,281.

To all whom it may concern.

Be it known that I, FREDERICK IV. WAKE- FIELD, a citizen of the United States, and a resident of Vermilion, county of Erie, and State of Ohio, have invented a new and useful Improvement in Double-Locking Holder for Lighting Fixtures, of which the following is a specification, the principle of the invention being herein explained and the best mode in which I have contemplated applying that principle so as to distinguish it from other inventions.

I The present invention relates to a lighting fixture in which the holderfor a globe is provided with means for engagement with the globe itself without the use of screws, and added provision is also made for positively locking the holding means in place when the fixture is assembled. To the accomplishment of the foregoing and related ends, said invention, then, consists of the means hereinafter fully described and particularly pointed out in the claims.

The annexed drawing and the following description set forth in detail certain mechanism embodying the invention, such disclosed means constituting, however, but one of various mechanical forms in which the principle of the invention may be used.

In said annexed drawing Fig. l is a vertical sectional view through the globe holder; Fig. 2 is an enlarged sectional View showing the globe locked in place; Fig. 3 is a sectional view on the a line 33 of Fig. 1; Fig. 4 is a perspective view of one of the spring fingers; and Fig. 5 is a sectional view of a portion of the holder with the canopy removed, showing the parts in releasing position in dotted lines.

As shown in the drawings the fixture consists of the usual lower canopy 5, with a supporting chain 2 having a ceiling support (not shown) at the other end. The chain is a secured to an inverted cup 6 or holder, the

The globe holding means comprise three spring fingers having angled ends 31 apertured to receive the screws 32 by which they are secured to the cup and the lower ends of the fingers have rectangular bends to form the receiving ends for the globe. The fingers extend from the cup outwardly and downwardly and just above the horizontal portion 32 are provided with tangs 33 punched up from the fingers.

A holder disk 34 is employed which is merely a fiat plate with one side 35 cut away to form a hand opening. This disk or plate is provided with two narrow slots 36 and one wider slot 37 and the fingers are threaded through these slots so that the plate is normally supported by the fingers and is prevented from rising by the three tangs The wide slot 37 is adjacent the cut away portion 35 and the slot is wide enough to allow the finger to be pressed inwardlysufliciently for the tang to pass through the slot allowing the plate to rise into the position shown in dotted lines in Fig. 5 and this releases the finger which assumes the position shown in dotted lines in Fig. 5 to allow the globe to be removed.

When the globe is to be inserted it is placed in the fingers in the slots 36 and the plate or disk is lowered to engage the third finger and when thus engaged the plate is below and in engagement with the tang so that the globe is locked in place.

The usual type of canopy 5 is employed which fits over the holding cup and rests thereupon, and the canopy is adapted to fit snugly against the periphery of the holder disk to positively prevent upward movement of the holder relative to the spring arms so that when the canopy is in place, the position of the spring arms in the disk holder is positively secured and the globe cannot be removed from the arms until the canopy has first been raised.

In the present lighting fixture, there has been secured locking means for the globe without the use of screws and the globe is doubl locked in place when the fixture is comp etely assembled and the canopy positioned. When the canopy is raised, the upper edge of the globe may be grasped by the operator and then by pressing inwardly the disk holder finger in the wide slot may be sprung upwardly over the tang in the third finger and the globe will be released due to. the spring action. oi. the, fingers. When, it is: desired to, insert the globe,- it" is alaced in position in the two semi-rigid fingers and the disk holder is then forced down to lock thethird finger overthelip of the globe and the holder will then-early the globe Without danger of releasing the same, and as soon as the canopy has been lowered into position, thespringfingers. and. the disk holder are positively locked'in their engaging position.- so; that the holder, cannot be. accidentally lifted;to release the fingers.

Other mo des, of," applying the principlev of myinv-ention niay. be. employed instead of the-one explained, change, being madeas, .regards, they: mechanism.herein disclosed, provided the ineansistatedf by. any of the follow. ing: claims or thegequivalent: of such sta ted means be employed.

I therefore-particula-rlypoint. out, and distinctly claim as my invention 1. In a; lighting fixture andglobe holder, the combination of cup. provided withv a socket and a tta :hing means, resilient fingers attachedto said cup and. provided, with ends adapted; for engagement with a globe,- a slotted disk. mounted on said fingers and adapted{ in; onewposition to lock, said fingers in. globe engagi-ng position, and at canopy adapted toafit, oven said-1 cup fingersand. to lock said; disk against upward 1 movement, to prevent accidental; release of said fingers when; said. canopy isinv position.-

21; In alighting fixture and: globeiholder, the-combination of. a cup provided with a socket, aplurality, of. downwardly and outwardly extending spring fingers: attached at their upper ends to said cup, said fingers having their lower ends adapted for engagement, with. the; lip of" a globe said fingers being normally spread apart to receive a globe, and a holder disk having slots to receive said lingers, 7 two. of! such slots snugly receiving said fingers, the other such slot being wider, said first fingers having means to retain the samein" engagement with the edges. of such respective slots, such third finger having means-for detachably engaging such wider slot to permit the displacement' ot said. fin gersv from its globe, engaging position.

3. Ina lighting fixture and;globe holder, the combination of a cup, provided. with a socket, a plurality of downwardly and out wardly extending spring fingers attached. at their. upper ends. to said. cup, said fingers havin'g their lower. ends adapted for engagement; with. the lip of a; globe, said' fingers being normally spread apart to receive a globe, a holder disklia'vingslots:to receive said fingers,.t wo of suchslots snugly receiving saidi fingers the, other such slot being wider, said first fingers having means to retain, the same; in, engagement with. the edges. of such. respective slots, such third finger having means for detachably engaging suchwider slot to permit the displacement of said-fingers flOll'l'ltS globe. engaging position, and a canopy. adapted to fit over and: enclose said fingersand. holder and adapted toyp-revent, upward. movement of said=h0lder disk.

Signedby me, this llthday of. February, 1922.

FREDERICK W. .WAKEFIELD.

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