US275515A - Extension-chandelier - Google Patents

Description

2 Sheets-Sheet 1.

(No Model.)

D. W. PARKER. EXTENSION CHANDBLIER.

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' (No Model.) Y -2 Sheets-Sheet 2.

' D. W. PARKER.

' EXTENSION CHANDELIER. No. 275,515.'

^ UNITED STATES PATENT OFFICE. i

-I)EXTER PARKER, OF MERIDEN, CONNECTICUT.

EXTENSION-CHANDEUER.

SPECIFICATION forming part of Letters Patent No. 275,515, dated April 10,1883.

Application tiled December 29, 1882. (No model.)

To all whom it 'may concern Beit known that I, DEXTEa W. PARKER,

' a citizen ofthe United States, residing at Meriden, in the county of New Haven and State ofv drawings, and to letters or figures of reference ,marked thereon, which form a'part 'ot' this specification.

The chief object of this invention is to lprovide for the easy attachment and detachment otl the arms of extension-chandeliers. To effect this I employ a ilange with which theinner ends of said arms interlock by means of notches or transverse grooves formed in the top ofthe latter, which tit said tlange, land a movable bottom plate for the center box, said bottom platefbeing set up against said arms by the action of a nut, and having an inclined face, which acts againsta similar tace on the inner end of' each arm. Y

My invention also 'consists in a sectional sleeve interposed between said nut and bottom plate, and slotted to allow the play of a fingerbar which protrudes through the slots of said sleeve, and by means ot' which the cord or chain is operated.

My invention also consists in additional details of construction and combination, as hereinafter set forth.

In the accompanying drawings, Figure l represents a vertical section through an extension chandelier embodying my invention. Fig. 2 represents an enlarged vertical section through the center-box arms and adjacent parts, showing the outer tube attached to the top plate ofthe center box. Fig. 3 represents a detail perspective view of the slotted body of the center box and the cross-bar, and Fig. 4 represents a detail view of the slotted sectional sleeve and the bottom plate and nut, to which its sections are respectively attached. Fig. 5 represents a detail view of the end of one of the arms.

Adesignates the hanger or bracket, to which is attached the inner tube, B, of an extensionchandelier. The outer tube, C, slides over said inner tube, and is locked thereto at any desired point by a sliding wedge and incline, fully illustrated and claimed in my Patent No. 269,105. The y said wedge is withdrawnv by :means cfa cord, D,w'hich extends down through said outer tube, and has a transverse linger-bar, P, on the lower end thereof. To the lower end of said outer tube I attach by screw-threads and nut, or otherwise conveniently, the center box ofthe extensionchandelier. This attachment may be to the top plate, E, of said'center box, as shown 'in Fig. 2, or to a cross-bar, F, ot' the body G of said box, as shown in Fig. l. In the former case the said 4cross-barv may be dispensed with. In the latter case it is preferably integral with the body aforesaid. The' top plate, E, body G, and bottom plate, H, together make up the entire box. 'The former two are connected immovably to one another; but the bottom plate is movable toward and from them, sliding over a small tube, I, which constitutes an' extension ot' tube C. In thecylindric'al body G there are vertical slots g, at suitable intervals, to receive the inner ends ot the bars J, which extend through them into said box. The under side otetop plate, E, is provided with an annular downwardly-extending ange,K,broken only where the bar F crosses it. This tlange tits into notches or recesses j in the upper edges of the inner ends of said bars, which notches practically convert the upper inner corners of said bars into holdin g-hooks that catch against said ilange. The hold of said lange upon the bars is, however, much more secure than it' the latter were provided with a raised shoulder or hook catching against the inner face of said flange. Each bar also has its inner end extended downward and inclined on its front orouter face atJ, and this inclination is arranged and adapted to be brought in contact with a complementary inclination ou the inner face ot a flange, H',

`'raised on bottom plate, H. The upward and downward motion of said bottom 4plate is caused by a nut, L, which turns on 'the screwthreaded lower end ot' tube I, said motion being transmitted through a sleeve, M, which surrounds the latter tube, and preferably consists of two parts or sections, the upper being attached to said bottom plate and the lower ICO to said nut. Sleeve M is provided with vertical slots m, and tube I is provided with corresponding vertical slots, i'. Finger-bar P protrudes on each side through said slots, which allow freedom of vertical motion to it, as well as to said tube and sleeve. When said nut is loosened, gravity causes said bottom plate to descend. The inner ends of bars J may then be inserted through the slots q of body G and' ThisV hooked against flange H', as stated. flange and the sides of the slots g eft'ectually secure said bars against either vertical or lateral displacement while the nut is turned home to force the inclined face of flange H' against the similar faces on said bars, thereby adjusting these bars exactly in a horizontal position and clamping them there.

0f course lugs arranged at suitable intervals may be substituted for the flange on the under side of the top plate; or said flange may have recesses cut in it, and hooks eXtend ing above the inner 'ends of the arms may be substituted for the notches shown therein; or the latter construction may be used without making recesses in the flange.

AS a further guard against displacement, the inner end of each arm J is provided on each side with a vertical rib or ridge, j. These ridges set against the outer face of the body 0f the box and aid in maintaining the arms in vertical position. The rear face, J2, of the-in ner end of each arm J is curved downward and forward without recess from the top to the bottom. This facilitates the introduction of said rear end into the box through its appropriate slot, g, of body G. In the actof thus introducing it the upper corner is first passed through said slot and the flange K'. rIhe notch and the lower edge of the flange, being rounded, allow the arm to turn down into a horizontal position. The shoulders j then bear against the outer face of the body G, and said body and flange, in combination with said shoulders and notch, hold said arm horizontally. When the bottom plate, H, is clamped up against said arms, the tting of all the parts is very exact, for the inclined face of ange K corresponds to the inclined face J on the arm, the notch j just incloses the bottom of the ange, and the shoulders 7" set tightly against the outer face of the body G, substantially as set forth. The vertical slots g in the body G allow the inner end of the arm J to be inserted when said arms are inclined upward or downward, as well as when they are in a horizontal position. Very little care is therefore requisite in their introduction and attachment to the center box, and time is saved thereby.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. A chandelier center box having a body vertically slotted to allow the insertion of the inner ends of said arms, and atop plate which has a downwardly-extending dange, in combination with a set of arms which are provided with shoulders to bear against the outside of said body, and with notches to catch on said flange, the said arms havinga rounded incline forward and downward at their inner ends, substantially as setforth.

2. The suspension-tube C, top plate, E, box body G, movable bottom plate, H, and nut L, for clamping said bottom plate against the chandelienarms, in combination with the slotted screw-threaded tube I, which extends down through the center box and serves to inclose cord D, to allow the protrusion of the ends of finger-bar P and to receive the nut L, substantially as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

DEXTER W. PARKER.

Witnesses JOSEPH H. BncKnrr, FRED PEAsE.

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