US278729A

US278729A - pabkee

Info

Publication number: US278729A
Authority: US
Publication date: 1883-06-05
Anticipated expiration: 1900-06-05

Description

2 Sheets-Sheet I.

D. W. PARKER.

(No Model.)

LAMP SUPPORT.

Patented June 5,1883.

N. PETERS. mmulm n her. Washington. D. c.

(No Model.) 1 2 sheets-sheet 2.

D; W. PARKER.

LAMP SUPPORT. v

No. 278,729. Patented June 5.1883.

mvm Z'or I Javier WParZen 2y WM NITED STATES PATENT FFI CE.A

LAM P-SUPPO RT.

SPECIFICATION forming partof Letters Patent No. 278,729, dated June 5, 1883.

Application filed November 524, 1882. (No model.)

To aZZ whom it may concern: 7

Be it known that I, DEXTER W. PARKER, a citizen of the United States, residing at Meriden, in the county of New Haven and State of Connecticut, have invented certain new and useful Improvements in Lamp-Supports and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying draw ings, and to letters or figures of reference marked thereon, which form a part of this specification.

This invention relates to the auxiliary pieces which are usually attached to lamp-brackets.

- Hitherto such pieces have been made of cast metal, their ornamental configuration and marking being given by the molds in which they are cast. The pieces thus manufactured are necessarily heavy, and must either be practically in one piece with the bracket, or will be in danger of accidentally falling off and injuring persons or things below. This last defeet is specially noticeable in the case of extension-lamps, which are ordinarily arranged directly over a table and suspended partly or wholly by chains- If the suspending devices break, the fall of the lamp is made more formidable by the cast metal ornaments attached to or formed with its harp or other parts of the fixture. Moreover, in the process of casting it is impossible to produce cheaply the desired fineness of ornamental lines and surfaces, and the figures of such surfaces are often indistinct.

The object of my present invention is to cure these defects, and this I accomplish by substituting for the ordinary heavy castmet-al pieces above referred to light sheet-metal auxiliary pieces, which may be easily detached from the lamp, and which are shaped and ornamented by striking up, thus receiving fine, accurate, and distinct lines and figures.

It is obvious that such auxiliary pieces, as compared with the old ones, will materially lessen the bulk required in the counterbalancing-weight, and thus effect a double diminution of the weight of the fixture as a whole, besides diminishing also the size of the weight and the danger that it will do damage by falling if detached.

3 represents an extension-lamp having itsharp provided with similar auxiliary pieces in the same'manner. Fig. 4 is a detail view of part of a lamp-supporting bracket and an auxiliary piece. Fig. 5 represents a vertical section through line :0 w of Fig. 2.

In said drawings, A designates the lamp, B the shade thereof, 0 the support,.andD Dthe auxiliary pieces.

The support 0 may be of any form convenient to the special use intended. Thus in Fig. 1 it is a bar swiveled to turn laterally, and resembling an ordinary form of gas-fixture for walls, while in Fig. 3 it is the well -known harp of an extension-lamp.

Each of the ornamental auxiliary pieces I) D consists of two counterpart shells having their concave sides toward one another and se cured firmly at the edges. They are provided with lugs or studs (1, which set into recesses of the bracket or support and are secured thereto.

It is not necessary that the pieces D D should be made each in two parts, for an ornamental piece stamped out of one part will answer very well in many instances. In stamping or striking up these auxiliary pieces I form a variety of lines and figures in relief. As these lines and figures are not superficial, but involve the bending of the entire thickness of metal in said pieces, the latter are necessarily stiffened by the process, and a less thickness of metal will answer the purpose than would otherwise be required. An additional advantage is derived from striking up as a preparation for electroplating.

Cast-metal ornamentsrequire to be smoothed by polishing wheels I before electroplating is practicable; but my process makes this stepunnecessary, since the same operation that produces the ornaments also smooths them. These auxiliary pieces may be used on gas fixtures or chandeliers.

WVhen desired, they may be made in one piece withthe lamp-support, and afterward ornamented, as set forth.

v Having thus fully described my invention, what Iclaim as new, and desire to secure by Letters Patent of the United States, is-

1. In combinationwithalamp or gas bracket port, a sheet-metal auxiliary piece struck up or support, as sheet-metal auxiliary piece, for to form stiffening lines and figures in relief. 10

the purpose set forth. I11 testimony whereof I affix my signature in 2. A sheet-metal auxiliary piece for lamp or presence of two Witnesses. 5 gas supports, the same being made detachable DEXTER \V. PARKER.

and stiffened by struck up lines and figures, \Vitnesses: substantiafly as and for the purpose set" forth. W. F. RIGHIMYER, 3. In combination with alamp or gas sup- RALPH A. PALMER.