US222737A - Improvement in lamps - Google Patents

Description

A. RINCKLAKE. Lamp.

No. 222,737. Pamed Dec. 16, 1879.

PETEHS, FHOTO-LITHOGRAPHER WASHINGTDN' D c.

NrrED SrA'rEs Parnnr (marca` AUGST RINCKLAKE, OF BRUNSWIGK, GERMANY.

IMPROVEMENT IN LAMPS.

Specification forming part of Letters Patent N o. 222,737, dated December 16, 1879; application filed July 28, 1879.

.To all whom it may concem: p

Be it known that I, AUGUsr R1NoKLAKE,of Brunswick, in the Empire of Germany, have invented certain new and useful Improvements iu Lamps, of which the following is a full and complete specification, reference being had to the accompanying drawings, iu which- Fignre l represents an elevation, partly in section,:of myimproved lamp; and Fig.2,atop view of the vapor-cap of the same.

Similar letters of reference indicate corresponding parts.

The object of this invention is to so improve the petroleum-lamps in general use that the so-ealled sweating7' of the same is entirely prevented. This sweating of the lamps is caused, first, by the leakage of oil through the cement joint between the neck of the lampbowl and the collar into which the burner is screwed; second, by the capillary action which takes place around the threaded portion of the burner which is screwed into the collar; and, third, by the passa-ge of oil from the wiek to the spur-wheels, and then along the shaft of the same to the hand-wheel by which the wiek is adjusted, and from which it drips down onto the bowl. Besides these causes, there is also a eonstant overflowing of petroleum at the top of the burner, arising from the capillary action of the wiek.

To obviate these various causes of the sweatin g of lamps, the lamp-bowl is provided, first, with an annular gutter or drain, by which the oil is prevented from spreading1 over the surface of the bowl, and conducted by openiugs in the bottom of the gutter, said openings having' downwardly-extending tubes back into the bowl. The shaft of the wick-adjusting spur- Wheels is next provided with a (hip-disk, that is arranged outside of the burner proper and ble manner into the bowl when the same is of sheet metal. i Q

At the bottom of the gutter B are arranged one or more openings, b', by which the drippin g's that are collected in the gutter may be returned to the interior of the bowl. The opening` or openings are provided with down- \\'*arclly-eXte11di1ig narrow tubes b', in which, owing to their capillary action, always a small quantity of oil is retained. This oil prevents the passage of the vapors that collect iu the upper part of the bowl to the outside. In other words, the oil forms areliable vaporseal. This gutter catehes, in the first place, all the oil which makes its way through the cement joint of the neclc of the bowl and the collar, also that which passes by eapillary action between the screw end of the burner and collar, and, finally, that which rnns over the top of the burner.

The shaft of the spur-wheels by which the wick is raised or lowered is provided with a drip-disk, O, vertically above the gutter B. This drip-disk returns the oil that passes from the wiek to the spur-wl1eels, and then along the shaft to the outside, back to the gutter, and .thence into the bowl.

A vapor-eap, D, extends concentrically to the neck of the bowl, and is fitted to the exterior part of the gutter and to the lower `part of the burner above the drip-disk, it being' preferably slotted at the side for the spurwheel shaft, so as to be readily removed forV cleaning` when the burner is unscrewed from the bowl. The vapor-cap D is fitted by an annular rim, d, around the hurner, the rim having notches cl', for admitting' the passage of drip-oil from the exterior of the burner and along the collar to the gut-ter and-bowl.

As the gutter forms a kind of fence or barrier that encircles the burner and neck of the howl, it prevents the oil from spreading` over the outer surface of the bowl. This gutter forms, therefore, the essential feature of my invention, to which the drip-disk and vaporcap are the necessary accessories. By these simple additons an effective remedy for one of the most disagreeable and annoying features of petroleum -lamps is provided, and thereby their cleanliness and their more general application are considerably promoted.

I am aware that lamp-bowls withcollectinggutters around the neck of the bowl are old. I am also aware that lamp-bowls with gutters having' discharge-openings have been used; but neither construction prevents the sweat ing of the lamp-bowls, the latter even increasing it, as the vapors pass freely to the outside and are condensed on the outer surface of the bowls.

Having` th ns described inyinvention, I claim as new and desire to secure by Letters Patent- 1. A lamp-bowl provided with an annnlar gntter or drain around the neck of the bowl, the gntter having one or more discharge-openngs, and a downwardly-extending tube or tnbes, which conduct the oil coilected in the gutter to the inside of the bowl, and form a vapor-seattor the bowl, snbstantially as described.

2. The combination of a lamp-bowl having an annnlar gutter or drain and a downwardlyextending` dischargc tube or tubes with a dripdisk arranged outside of the burner on the spur-Wheel shaft and verticall y above the gutter, snbstant-ially as set forth.

3. The combination of a lamp-bowl having an annular gutter or drain and adownwardlyextending discharge tube or tu'bes With a burnerencireling va-por-eap that is fitted to the onter circnmference of the gutter, substantia-Ily as speeified.

4. The combination of a lamp-bowl having an annular gntter or drain and a downwardlyextending discharg'e tube or tubes with a dripdisk. that is arranged outside of the burner on the spur-wheel' shaft, and With a vapor-cap which is fitted around the bnrner and adapted to inclose drip-disk and gutter, as set forth.

In testimony that 1 ela-im the foregoing' I hereunto set my hand.

Brunswick, April 5, 1879.

AUG. RINGKLAKE. Witnesses: WILLIAMs O. FOX, J o1-1s. KRAGKE.

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