USRE2765E - Improvement in lanterns - Google Patents

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@uiten -tsrtrs ils-trut @fge WILLIAM WESTLAKE AND .JAMES RDANE, oF'NaW YORK, N.- Y.,

' Assiennas vor CONRAD constan.

Letters PdtcntNo. 22,723, dated Jorma-ry 25, 1859; reissue 1Y0. 2,765, dated September 17, 1867.

IMrncVrMEN'r In LANTERNS.

TO ALL WHOM IT MAY CONCERN: A

Be it linown that CONRADGERSTEN, ofthe city of Brooklyn, in thevcounty of Kings, and State of'New York, invented` certain new and useful Improvements in Lanterns for Burning Coal Oils and we do hereby declare that the following is :1f-full,A clear, and'exact description of the same, reference being had to the accompanying drawings, in whchi Figure 1 isa side elevation of thev lantern.

Figure 2 a vertical central section, and

Figure 3a horizontal section taken at the line A a'of iig. 2.

Like letters indicate the same parts in all of the tiguresl 5 The lanterns which have heretofore been made forburning coal oils will not admit of being moved through 'the atmosphere withany degree of velocity, or of being exposed to the wind without .being entinguished and unsteady currents of air affect the flame so as to' cause them to smoke to a very considerable extent.

The obj-ect of this'invcntion'is to avoid the defects'above enumerated, and others not necessaryfco enumerate; V

and to these ends said inventionvconsists in so controlling the supply of-air to feed the flame that'it'cannot bc affected within the lantern by any agitation'of the vair outside; and-said invention also consists in keepingthe oil-chamber cool, (which we consider important in lam-ps forburning'A that class Vof, oils,) by interposing :Invair-chamber between the oil-chamber and what may be termed the burner or flamechamber, so that by the circulatien'of air in Vthe said cooling-chamber `the voil will be prevented from being heated; and said invention also-consists in providing a lantern with a deflec'ting plate or deflector, located'abovc the holes for the admission of air, so as to direct the air admitted into the lantern towards and on to thc-flame.

In the accompanying drawings, a represents the pedestal, which is hollow to form a reservoir to contain the' oil, and is provided with Aa tube, 6, out-side,V and a cup-screw, through` which th oil is to be supplied. TheA ppper plate cof thisioillreservoir has a central hole, provided with a cyliudrical'tube, d, which extends up the required height, and to the upper `en'd of which is fitted a burner, e, o't' the usual construction. The wick is moved up and down by the ratchet-wheels 'on a spindle, z'. The end of this spindle is made to't in theend ofv another spindle, or a continuation, k, of-thelsame spindle which turns in a tubular box, and passing through the surrounding casings, is provided with 'a thumb-and-inger piece, or wheel m, outside, by means of'which arrangc- :ment the wick isadjusted readily f1'omthe`out'sidc. The bottcm m' of Athe burner-'chamber n, is about half an 'finch above the upper platee of the oil-reservoir, so as to form an air-chamber, '0, interposed between the flame and the o ilfreservoir, and the cylindrical ring p, which surrounds this space, and which forms the periphery. of'

mit air to the burner-chamber n, to supply the wick below the defilector, and the upperrowftosupply a o the llame above the deiiector, which delector is represented at q, aud vis made to enclose entirely the Iamcchambcr by extending it so thatits periphery lits thc inside otthe cylindrical' ring p, below the upper the burner bamber, is provided with three. rows of holes-the lower row to admit air to the air-chamber o, the

rangeofi'h esl. It is swelled up in conical form, and in the centre there is aboss which vhas a slot out init of v 1an the thickness ofthe wick for the passage of the flame, and. in consequence 'of entirely .surrounding the flame and lenclosing the llame-chamber except theapcrturc for thc passage of the llame, the currents of air'which'cntcr thcilameehamber are all deflected towards the burner to`fecd thc-'tintura and no agitating currents are permitted to take place. The cylindrical ring p islsurroundcd byian outer vcylindrical casing, T, leaving an annular space, s, between the two, closed at'the bottonrby the pedestal, and open at the top to the inside of the lantern. A little below thel upper cdge. of the ringp, thcoutcr casing spreads out in the form of a horizontal ilanch as at t, 'and turus'up as at u, to form a. scat and enclosure for the lowcrmetallic ring o of the lantern-glass w, which may be of thc form represented or of anyjcthcr suitable form. 'lo the part .u-of thc outer casing are hinged two horizontal levers :t as, 'controlled by a springfy, the tension of which forces inwards the outer ends of thc levers, which are turned inwards andplay through'slots in the' casing. i The other ends of the said levers are so curved as t0 be both operated conveniently by `thcgth'ulubrand finger to contract the 'sp1-ing. When so operated` the ringr 'v of thc lahtern-glass 'w can bc 'lot down on to the sea-t, und then by letting go the levers the ends that play through the slots in the o ntcr' casing are forced inwards over,

the ring, thereby securing the globe to the pedestal. This it ivill be perceived entirely encloses the passages which admitair tothe burner. The upper end of the globe is open, and provided with a ring, a', having tivo ranges of holes, one, Zi', in the lower part so that the entering currents oi' air have an upward direction, and inust curve around the inner edge orrim c of theupper 'end of the glass, and the other, .f above this, which enters above a. deflecting ring, e. The upper part'ef ring alias a central hole,f, covered by a eonicai'cnpw. By

these or equivalent means a provision is niade for a supply of'atinospheric air to feed the naine and for the" escape ofthe products of combustion. 'The air which enters through the apertures at the top to the inside of the lantern or under the band 1J, as shown at fig. 2, passes down the annular space s, and thence enters through' the series of holes in the cylindrical rngp to the cooling-chamber o, and to the burning-chamber n, to supply the {dame-at the junction with the burner, and through the upper series of holes above the dciiector to supply the ame above it, andtoprevent any sudden downward current from affecting the flame, and as the supply of air can only reach the holes leading to these compartments by descending through the narrow annular space,

the current supplied to the flame cannot be materially disturbedl by any agitation outside the lantern. By 'reason of this mode of directing the currents,` and the enclosureof the burner-chamber bythe deiieetor, the Home is thoroughly protected against all disturbing inuences outside', and the arrangement for controlling the' wick from the outside of the lantern can be` used under all circumstances and in all kinds of weather without danger of being extinguished or of smoking, Awhile at thefs'ame time the oil is prevented from being heat-ed by the interposition of the cooling-chamber. The glass-lantern englobe :nay be protected by metallic rods la', or by other suitable means. I

What ive claim as the invention of the said CONRAD GERSTEN, and desire to secure by Letters Patent', as an improvement in lanternsis- Y 1. The dcilector q, constructed and operating substantially as and for the purposes specified.

2. The mode of controlling the current of air which feeds the arne by causing it to pass down in a narrow annular space or passage to the apertures leading to the burner, in combination with a delectorz substantially as 'l specified.

' preventing the oil from being overheated, as described.

3. -Combining with the burner and the oil-reservoir, and interposed between the t\vo an ar-chaulb'er for ,WILLIAM WESTLAKE, JAMES F. DANE.

l .Witnessesz L. L. Boun, A. T. Snucsrou'.

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