US71566A - In lamps - Google Patents

Description

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`JOSEPH BELL' ALEXANDER OF WASHINGTON, Dis'rnio'r OF COLUMBIA.

Letters Patent No. 71,566, dated .December 3, 1867.

IMPROVEMENT' IN LAMPS. d Y

TO ALL WHOMIT MAY OONOERN:

Be it known that I, JOSEPH BELL ALEXANDER, of Washington, in the county of Washington, inthe District .of Columbia, have invented o. new and improved Device for Adjnsting the Wicks of Lamps; and I dohereb-y -declare that the following is a full, clear, and exaetdescription thereof, reference being had to the accompanying drawings, andto the letters of reference marked thereon, making a part of this specification.'

Figure 1 represents in perspective a view of the single plate wick-holder, with its turned 'edges C and C',

Vand its turned lip or stop D.

Figure Z'represents'in perspective a view of the wick-holder containing two pieces of wick, and showing at N the manner in which a new wick 'may be added to one that is becoming to short to reach the oil in the d fountain ofthe lamp.

v' Figure 3 represents in perspective a view of the wick-tube, with notches E and E' into its edges, instead of the slots iu the wick-tubes in common use.

,Figure 4 represents in perspective a view ofthe wick-holder A, charged with 'a wick, W, and inserted in the wick-tube B, `so that its edges may -be acted on by the bevelled friction-collars G and G', through the notches'E and E', for thepurpose of raising or lowering the wick.

Figui-e5 represents a transverse sectional viewot a burner in the plane of the axle F, showing the manner in which the bevelled, friction-collars Gr and G', pressed bythe spring S and S', bind with a wedge-like grip upon the free edges of the wick-holder A.'

Figure 6 represents a vertical sectional view of a burner, with the wick-holder plateA., without a'wiek, 'inserted into thcrwick-tube B, and pushed up until ift-rises above the mouth or slot in the cone L, showing the manner in which the stop D arrests its further progress upward.

Similar'letters of reference denote like parts where they occur in the several figures.

A The nature of my invention consists in an improvement upon a patent (No. 64,056) granted to me, April 23', 1867, for a device for'raisingand lowering lamp-wicks through the wick-tube, with certainty, facility, and perfectness, wherein I claimed the use of twoxmetal plates, with turned edges to fit the one into vthe other, as a -wick-holder, and moved in the wick-tube by milled friction-'collars acting through slots'on both its sides. In my present improvement I use butone plate, with turned edges, as a wick-holder, and move it in the Wick-tube Vby means of bevelled friction-collars attached to but one axle, and acting from one side; and by -a wedgelike gripe upon the wick-holder plate when its edges,exposed through notches in the edges of the. wick-tube, are -pressedhetween the bevelled inside faces of the friction-collars, thus forming an entirely new device, easier to manufacture, more simple in its arrangement, and more cer-tain and lasting in its action.

To enahle others skilled in the art te make and use my invention, I will-proceed to describe its construel tion and operation.

I make a wick-tube, of brass or other metal, like those in common use, With-the exception, that instead of p cutting' slotsin the side for thc'admission oftheteeth of spur-Wheels, I cut notches in the edges E and E', (see drawings,) to permit an exposure at those points of the edges of the wiclvholder plate A, asseen in figs. 4, 5,

und 6. I make a wick-holder ofa single plate of metal, (see A, fig. 1,) by turning its edges C and O'in such` amant-1er as to allow a cotton-wick to be easily drawn into it, as seen in W, iig. 2, and Aso that it will pass with ease through the wick-tube B. I also at the lower endturn oii a smalllip, D, as a. stop to prevent it from rising higher in' the Awick-tube than necessary,i(see D, figs. 1 and 6.) On the axle F, I attach firmly, at a. little less distance apart than the'width of the plate A, two small wheels or friction-collars, of brass or other metal, ywith their inner sidesl or faces bevelled, as seen in .Gr and G', iig. 6, so that they will clamp the vedges of the plate A when pressed upon it by-thelaotion of the spring Sand S', which'I attach to the inside of the burner I in such a' manner as tobear firmly with its prong or prongsupon the axle F, as may be seen in figs. 4, 5, and 6. In thesides of the burner, I cut the slots K and K' as hearings-for the axle F, so as to allow it free play under the action of the spring and-.S. Now, by reference to the drawings, it will be seen, that when the plate A, chargedwith a wick, is inserted into the wick-tube B, its edges, through the notches E and E', where they are exposed, will he seized by the friction-collarsGr and G', and-"ii` the button H, on the end of the axle' F, be

turned or twisted by the hand, the plate A will rise vvor lower with perfect ease and certainty, thus adjusting the upper end of the wick above the wick-tubeB, to the amount or volume of ilame'required.

The advantages of my improvement are as follows: A wick can be inserted into the wick-tube with ymuch greater Afacility than in that of lamps lof common use. As there is no direct actionof the moving power, on the body of the wick itself, it ivill continue to hold the shape in which it is ,trimmed without change, and thus give the largest and brightest flame which can'be obtained from a lamp. It will give more freedom to the passage of oil through the wick; and a wick never being ravellcd, as by the spur-wheels which enter it, as in ordinary lamps, will last until it is all consumed, for as soon as a wick, from the process of burning and trimming,

becomes too short totake the oil from the fountain, theend oi" another wick may be added to it, and thus continue to pass theow of oil unobstructed, as will `be seen at N, fig. 2, it being only necessary, when the upper wick is pushed up in trimming, to. push up the lower one again until it touches the rst.

What I claim as new, and as of my invention, and for which I desire to obtain Letters Patent, is-

The single plate A, with the turned edges and C', and the bent stop-piece D, in combination with the wick-tube B, the notches E and E', the bevelled friction'collars Gr and G', the axle F, the spring S and S', and the burner I, substantially as described, and for the purpose setforth.

I also claim thenotches E and E', in the edges of the wick-tube B, substantially as described, and for the i purpose set forth.

I also claimthe bevelled friction-collars G- and G', in combination with the axle F, the plate A, the wicktubeB, the spring S and S', the notches E and E', and the slots K' and K', when arranged together and with regard to the adjustment of wicks in oil-burning lamps.

' J. B. ALEXANDER.

.- Witnesses.:

Gr. BELL, E.. T. BRIDGES.

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