US87957A

US87957A - Improvement in lamp-brackets

Info

Publication number: US87957A
Authority: US
Publication date: 1869-03-16
Anticipated expiration: 1886-03-16

Description

.C. H. MILLER.

Lamp Bracket.

Patented March 16, 1869.

Zn'ueYLZ QH N. PETERS, Phok0-Liihographer, Wa shinglon, o. \1

W5 Ewe; S

1 ofBuflalo, in the county of Erie, and State of New York,

lowing is-a full and exact description thereof, r1 ference vent-their disconnection, until it is swung around to .A ledge, h, is cast on the upper surface of the ear f,

CHARLES MILLER, OF BUFFALO, YORK. I Letters Patent No. 87,957, dated March 16, 1869; antedated November 25, 1868. I

LAMP-BRACKETS.

The Schedule referred to in: these Letters Patent and making part of the same To all whom it may concern.-

Be it known that 1, CHARLES H. MILLER, of the cityhave invented a certain new and useful Improvement in Lamp-Brackets; and I do hereby declare that the folbeing had to the accompanying drawings, in which- Figure I is a side elevation of my improved bracket.

fi Figure II is a sectional detached view, in line x x,

Figure III is a plan, showing the manner of attaching the ring, which supports the lamp, to thearm of the bracket.

Like letters of reference designate like parts in all of the figures.

My improvement relates to the special constructions of the joint which connects the standard, that supports the reflector, with the bracket-arm, so as to retain the reflector at whatever angle of inclination to which it may be adjusted.

In the drawings- .lA is the plate by which the bracket is secured to thewa l.

B, the arm of the bracket, which is hinged to the plate A, as shown, so as to allow it to swing horizontally.

O is thering which supports the lamp, provided with {in opening, to permit the passage of the neck of the amp. 7

This ring is attached to the end of arm B, in the following manner: The end of the arm, which is turned upward, is reduced in size, or formed so as to have a shoulder, 11, while the tip, or reduced portion of the arm is formed with a lug, or wing e, at one side.

The ring 0 is cast with an ear, f, in which is formed, or cast, a hole, having a recess, g, at one side, to permit the insertion of the end and wing e of the arm, the two parts'being connected, as shown, and the ring swung into its proper position, so as to destroy the coincidence of the recess and wing. The latter will precoincide with the notch.

which forms a stop, against which the vane strikes,

and arrests the swinging of the ring, when it has arrived at its proper position, in line of the arm B.

The construction of the parts already described, I do not claim as my invention.

From the upper side of the arm B rises a short arm, I, which is provided with a circular opening, 1', with the exception of a notch, or recess, 6, formed in one side.

The end of this standard, at one side, is recessed around the hole t, as shown at m, Fig. II.

J is the arm, or standard, for supporting the reflector K, which is adjusted on the end thereof, in a common manner, as shown.

Near the lower end of this standard J projects, at right angles, a short axial pin, n, designed to fit in hole i, in the end of arm I. This pin is formed with a vane, or wing, 0, corresponding to the notch, t, which permits its passage, as the pin isinserted through the end of the arm, after which, by giving the pin a partial turn, to destroy the coincidence, the vane, or wing, will prevent the withdrawal of the pin.

A coiled spring, s, is first slipped on the pin, before its connection with arm I, which is concealed within the recess m.

The force of the" recoil of this spring, causes the wing o to press against the surface of arm I, so that the friction engendered thereby will be suflicient to retain the arm J, and reflector. at whatever inclination it may be adjusted.

The lower end of the arm J terminates in a thumbpiece, 1:, by which the reflector is adjusted.

The importance of this adjustability of the reflector must be apparent to all.

It enables the reflector to be so arranged as to reflect the light downward upon the work or book, as the case may be, or horizontally outward, or at an inclination upward, as circumstances may require.

I do not claim, broadly, rendering the reflector of lamps adjustable; but

What I do claim as my-invention, and desire to se cure by Letters Patent, is-

The hole 13 i, and recess m, formed in the standard I, in combination with the axial pin a, vane 0, and spiral spring 8, of the reflector-arm J, constructed and arranged as herein set forth.

CHARLES H. MILLER.

Witnesses:

'JAY'HYATT,

G. BURKHARDT.