US502880A

US502880A - edsall

Info

Publication number: US502880A
Authority: US
Publication date: 1893-08-08
Anticipated expiration: 1910-08-08

Description

(No Model.)

w. H. BDSALL.

LAMP.

No. 602,880. Patented Aug. 8, 1893.

4 "'"i' -m H "i WITNESSES: lNVEN 70/? M XQ UNITED STATES PATENT OFFICE.

WILLIAM H. EDSALL, or BROOKLYN, NEW YORK.

LAMP.

SPECIFICATION forming part of Letters Patent No. 502,880, dated August 8, 1893.

1., Application filed February 15 1893- Serial No. 462,392. (No model.)

lyn, Kings county, New York, have invented a new and useful Improvement in Lamps, of which the following is a specification.

The present invention relates to oil burning lamps, and especially to central draft lamps, employing cylindrical wicks.

The object of the invention is to provide improved means for raising and lowering the wick of such character that the device connected to the wick can be disconnected therefrom and again connected at any point on the wick from outside the lamp.

The invention consists in the arrangement and combination of parts as hereinafter more fully described and set forth in the claims.

In the accompanying drawings, Figure 1 is a side view, partly, in section, of so much of a lamp as is necessary to illustrate the improvements; and Fig. 2 is aview on line 2-2, Fig. 1, looking in the direction of the arrow.

it indicates the body or oil-chamber of the lamp, and b the central draft tube, which may be supported in any suitable way by the body of the lamp. 0 is a cylindrical wick surrounding said tube, and terminating just above the tube, at which point the wick may be lighted. As the wick burns away it becomes necessary to raise it on the tube, and for this purpose I have invented a new device now to be described; 01 are jaws or arms, on opposite sides of the cylindrical wick, pivoted together at e, and provided with shoulders d thereon for purposes which will be hereinafter referred to. These arms (1 are pressed together by a spring f, so as to bear upon the wick c. The pivot pin consists of a rod 9 rigidly supported from the body of the lamp, preferably by means of the sleevehextending down from the top of the lamp, as shown in Fig. 1, and on which arms at can slide up and down. Through the sleeve h extends a rod 2', preferably having a bent endj to form a handle, and carrying at its lower end an arm or cam is rigidly fixed thereon so as to turn with the rod,and, having also a disk Z above and below the cam is. The bent with a lug It thereon adapted to abut against a shoulder d. on the arms d and so limit the movement of the cam in either direction. This prevents the rod 71 from turning so that thehandle will jam against the gallery, and also prevents the cam L; from turning farther than the highest point thereon, thereby avoiding any danger of the teeth on the jaws engaging the wick. When cam 70 just passes the center, in spreading the arms, spring f will tend to hold the parts in the dotted position, Fig. 2. The arms 01 will also stand open without being held by the operator, while a new wick is being put on the wick tube.

At the outer ends of the clamping arms d are preferably formed one or more rows of teeth m, adapting them to take a firm hold of the wick.

Then the wick raising devices are in the position shown in full lines in Fig. 1, and it is desired to raise the wick, it is simply necessary to grasp the handle j, and to move it up to the desired extent. When the Wick has been repeatedly raised and burned away at the top until the handle occupies the position shown in dotted lines, Fig. 1, it becomes necessary to disengage the clamping arms d from the wick, which is done by turning the handle j until the cam is presses said arms apart, so that they occupy the position shown in dotted lines, Fig. 2; the handle can then be moved down to its full line position, Fig. 1, after which the wick can be raised, as already described.

A spring 8 is supported on sleeve h, or in any other suitable position, and bears against the rod 11 with sufficient force to keep it from slipping down, accidentally, during use.

What I claim is 1. In a wick raising device for lamps, the combination of pivoted spring pressed shouldered jaws d, wick raising, rod 2', cam 76, attached to said rod and lug is on said cam,

adapted to abut against the shoulders 0n the jaws d to limit the movement of the cam, snbstant-iaily as and for the purposes specified.

2. In a wick raising device for lamps, the combination of spring-pressed, pivoted jaws (I, having shoulders d thereon, wick raising rod 1', cam is attached to said rod and lug k on said cam, adapted to abut against the shoulders d on the jaws d to limit the movement of the cam and a spring sbearingagainst the 10 rod 2' to hold it in its adjusted position, substantially as specified.

' WM. II. EDSALL. Witnesses:

HARRY M. TURK, CHARLES M. OATLIN.