US178508A

US178508A - Improvement in lamps

Info

Publication number: US178508A
Authority: US
Publication date: 1876-06-13
Anticipated expiration: 1893-06-13

Description

G, D. BURTON.

LAMP.

-Patented J'unei3, 1876.

UNITED STATES PATENT OFFICE GEORGE D. BURTON, OF NEW IPSWICH, NEW HAMISHIBE.

IMPROVEMENT IN LAMPS.

Specification forming part of Letters Patent No. 178,508. dated J une 13, 1876; application filed November 9, 1875.

T0 all whom -it may concem Be it known that I, GEORGE D. BURTON, of New Ipswich, in the county of Hillsborongh, State of New Hampshire, have invented a certain new and usetul Improvement in Lamps, of which the foilowing is a description sufficiently full, clear, and exact to enable any person skilled in the art or science to which my invention appertains to make and use the same, reterence being had to the accompanying drawing, forming a part of this specification, in which- Figure 1 is an isometrical perspective view, a portion of the base and shatt of the post being represented as broken-away to show the weight and chains; and Fig. 2 a similar view showing the sliding frame.

Like letters ofreierence indicate corresponding parts in the difierent figures of the draw- 111 g.

My invention relates espeeially to that class of lamps Which are designed for lighting .streets, public parks, &c., and eonsists in a novel construction and arrangement of the parts, as hereinatter more fully set forth and claimed, by which a simpier, cheaper, more efiective, and othcrwise desirable article of this charaeter is produeed than is now in ordinary use.

ihe nature and ehiracter of this device Will be readily obvious to all conversant With such matters from the following description:

In the drawing, A represents the base, B the shaft or body, and N the cap. These parts,which forn 1 the post, are hollow, and preferabiy cast integral, but may be made in sections, if desired, and nnited in any convenient manner Projecting from and opening into the cap N are four downwardly-curving hollow anus, C, carrying a series of chemins, D. These chains extend into thebase A, where their inner ends are attached.to the Weight or counter-balance K, their outer ends being secured to the sliding lamp-frame E. This frame has a central opening, G, for the shaft B, and also four quadrangnlar openings, a, for the lanterns H, the lanterns being fitted with covers J and -lamps Iin the ordinary manner. A pin or bolt, L, threaded to work in a nut (not shown) is disposed in the top et thebase A,'its inner end being shaped to fit the groove 90 in the weight K, and thus form a key or stop to secure the lamps I a't any desired elevation.

In the use'of my improvement it will be obvious that when the key-bolt L is withdrawn the lamps may be readiiy raisedor depressed by slidin g the frame along the shaft, the ehains running freely through the arms, and the weight rising and falling within the body of the post.

Having thus explained my invention, what I ciaim is- The combination, with the frame, lantern, and lamp, suspended by means of a chain, D, in the post A B N, of the grooved weight K, and pin or boit L, substantially as and for the purpose described. V

' GEORGE D. BURTON. Witnesses:

W. A. PRESTON,

G. A, WHITNEY.