US272235A - Hanging lamp - Google Patents

Description

R E N S S E A L G R A m 0 M o W HANGING LAMP.

No. 272,235. Patented Feb. 13,1883.

N. PETERS. maulhn hw. war-mm n. c.

Nrrn STATES PATENT OFFICE.

ARTHUR F. GLAESSNER, F Mnm'nE'N, CONNECTICUT.

HANGING LAMP.

SPECIFICATION forming part of Letters Patent No. 272,235, dated February 13, 1883, I Application filed December 11, 1882. (No model.)

To all whom it may concern: I

Be it known that I, ARTHUR F. GLAESSNER, 0f Meriden, in the county of NeWHaven and State of Connecticut, have invented a new and useful Improvement in Hanging Lamps; and I do hereby declare the following to be a full, clear, and exact description of the same, refer- A ence being had to the accompanying .drawings, which form a part of this specification.

My invention relates to that class of hanging lamps which are provided with a shade such as the Wellknown extension librarylam ps--and particularly to the construction of the harp and connected parts in such lamps.

Heretofore hanging lamps have been constructed in such away that the shade has not been removable after the lamp has once been put together andv hung in place, as for purposes of cleansing, renewal, 850., except by taking the structure, to pieces again. 7 My invention is intended to overcome this objection to the hanging lamps at present in use; and to that end it consists in such acornbination of the parts of the harp, with its supporting devices, as will enable the user at any time alter the lamp is put up and in place to move such parts of the harp as interfere with the removal or the putting on of the shade from their interfering position whenever such removal or putting on of the shade is desired, and to restore.those parts to and reta n them firmly and securely in such (their proper) position at other times, as hereinafter described.

, In the accompanyingdrawings,Figurelisa view in vertical section, in the line 00 a, of a hanging lamp embodying my invention in its preferred form. Fig. 2 is a plan view of the same. Fig. 3 is a detail view of a modification.

Like letters of reference indicate like parts in the several figures.

A is the shade-support, carrying, by means of the usual binding-screws, a a, the shade B.

O is any ordinary system of suspendingohains, those shown inthe drawings passing over pulleys attached to the ceiling, &;c., and carrying at one end the shade-support A, and at the other end the usual balancing-weight.

E is the harp, carried on the shade-support A, and itself carrying the lamp proper, F.

In the form of apparatus shown in Figs. 1 and 2, which is the form I prefer, the harp E is composed of two parts hinged orjointed together at b, one of which parts is rigidly attached to the shade-support A at c, and the other of which is carried on a guide rail or rod, G, which follows the curvature of the shadesupport A, and is rigidly attached to such support at c and d in such a way as to allow the movable half of the harp-to wit, the half that is carried on this guide rail or rod-to be swung on its pivot or hinge b along said guiderail toward or from the fixed half of the harp, as indicated by the arrows in the drawings. In this guide rail or .rod G there is a depre sion or recess half-way around the circle from the fixed half of the harp, into which recess the movable half of the harp falls, as is clearly shown at d in Fig. 1, and where it is held fast so long as the lamp is being used; or any other device may be employed that shall suitably fasten the movable half of the harp at that point.

Whenever it'is desired to take 01f the shade for any purpose the lamp proper, F, is removed, the movable half of the harp-is sprung up out of its recess in the guide-rod G, orin any Way suitably unfastened from its seat, and is swung around along said guide-rod until the two halves of the harp are folded one on the other, when, being of the same curvature and shape, the shade, after being unfastened from the shade-support A, is readily removed down the irregular arm formed by the two halves of the harp so folded together, and as readily applied. The hinge at b may be any kind of hinge that will allow of the folding motion described. The guide rail or rod Gr may be left free at its end d, or its place may be taken. by a guidegroove or any other suitable supporting-guide. Again,'it need not extend around the entire semicircle from d to c. It is sufficient if any. device connected with the shade-support be used that will guide the movable half of the harp, when itis being unfolded into its proper too and is adapted to receive a projecting arm or portion, e,ofthe movable halfofthe harp,the position occupied by e in the figure corresponding with the position of the recess in Figs. 1 and 2, and the spring-arm f holding the part 0 firmly in place until said part is forced out, as when it is desired to fold the two halves ofthe harp, as described, and remove the shade.

The operation of my improvement consists in the moving of such parts of the harp as interfere with the removal or application of the shade out of their interfering position Whenever such removal or application is desired, and returning them to and securing them in such (their proper) position at othertiines, substantially by the operation of folding and unfolding hereinbefore described.

hat I claim as new, and desire to secure by Letters Patent, is-

ARTHUR I. GLAESSNER.

Witnesses A. L. OTIS, E. G. KING.

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