US246190A - Stephen s - Google Patents

Description

(No Model.)

S. S. NEWTON.

LAMP ATTACHMENT. N0. Z46,l90.- Patented Aug. 23,1881.

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NITED STATES PATENT OFFICE.

STEPHEN S. NEWTON, OF BINGHAMTON, NEW- YORK.

LAM P ATTACH M ENT.

SPECIFICATION forming part of Letters Patent No. 246,190, dated August 23, 1881.

' Applicationfiled June23,1881. (N0lll0d61.)

To all whom it may concern Be it known that I, STEPHEN S. NEWTON, a citizen of the United States, residing at Binghamton, in the county of Broome and State of New York, have invented certain new and useful Improvements in Lamp Attachments 3 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 drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

Figure 1 is a perspective view of a lampburner having my improvement applied thereto. Fig. 2 is a vertical section of a modification of my improvement complete, and Fig. 3 is a vertical section of the upper portion of the construction shown in Fig. 1.

Referring to Figs. 1 and 3, A A A represent a chamber, its upper portion being adapted to receive and support the operative parts of a lamp-burner, the part A being screwthreaded externally to fit the collar of ala-mp, the part A being of reduced diameter.

F is a shaft mounted in the sides of chamber A, and carrying star feeding-wheels Within the wick-tube, which, with other parts of the burner, may be of any usual or approved construction.

B is a short tubular section having small holes or reticulations, and made, by preference, of wire-gauze. It is secured at its upper end to the extension A by wiring, soldering, or otherwise.

0 is a tube or casing, formed, by preference, of a woven fabric composed of asbestus or of some other thread or fiber which is not liable to be destroyed by fire.

D is a coil of wire arranged within the easing 0, and which serves to keep it distended, as shown.

E is a short cylindrical section, made, by preference, of Wire-gauze, and closed atits outer end. It may be either made in tubular shape,

with its end closed by a flat round piece, or it maybe made from a flat piece of gauze byspinning or swaging it into the desired shape.

The casin g G and spiral springD are attached at one end to the part B and at the other end to the partE, preferably by being wrapped as at cl 0; or the parts may be secured to each other by inserting the tubular sections B E respectively within the end convolutions of the coiled wire D, as in practice I propose to have the convolutions much closer together than is shown in the drawings, where I have represented them at some distance apart for convenience in illustration.

Under some circumstances I employ a single flexible safety-tube, G, made of fine but elastic wire, as indicated in Fig. 2, in place of the casing O and coiled wire D, Fig. 1, as it will be understood that if a sufficiently-fine wire be used the spaces between the convolutions' at the outer side of the curve at x will 'be so small as to prevent the passage of flame through them, the intent of this invention being to provide a wick-tube of such flexibility as will enable it, when introduced into a lamp of ordinary construction, to receive a wick of ordinary length and prevent the oil or gas from being ignited in case the gas or oil within the wick-tube takes fire. D

For making a coil, G, of a size suitable for a medium-width wick, I propose to use a brass spring-wire of about No.35 to No. 40, and wind it with the adjoining convolutions in substantially close contact, as such construction will permit the oil and gasto pass freely, but will prevent flame from passing from the inside of the coil to the body of the lamp outsidethe coil.

In the use of my invention oil enters the wick-tube not only through the casing G or coil Gr, but also through the finely-reticulated metal part E, and gas which accumulates in the upper part of the lamp will pass freely throu gh the partB and escape through theventholes a, as shown in Fig. 2.

In Fig. 2 I have shown a construction by which that part of my invention whichisillustrated in Figs. 1 and 3 may be readily applied to lamps as ordinarily made and sold. In this figure the upper part of the chamberA is con- .structed of a circular plate of metal, slightly dishing in form, provided with ports a and an internally-threaded neck or thimble, A, adapt ed to receive a burner of the usual pattern. By this construction the ports a not only per 1nit the escape of gas, but also serve as dripholes.

One object in making the part A of less diameter than the part A immediately above it is to insure that the tube 0 and reticulated section B can be readily introduced into a lamp through a threaded collar, into which the part A shall screw.

I do not claim, broadly, in this case either a reticulated safety wick-tube or a coil of wire surrounding the wick,- but I believe I am the first to employ as a safety-tube surrounding the wick a coil of wire the convolutions of which shall be, when in ordinary use, so close to each other as to prevent flame from passing between them, thus preventing fire from communicatint to the gas or oil which surrounds the wire coil and reticulated parts, even though the gas or oil within the wire coil should take fire.

Vhat I claim is- 1. In a safety attachment for lamps, the combination, with the burner, of the chamber A, having the reduced partA the reticulated In testimony whereof I affix my signature in 0 presence of two witnesses.

STEPHEN S. NEWTON.

Witnesses:

NERI PINE, H. H. BLIss.

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