US1002890A - Lamp. - Google Patents

Description

D. A. WILLIAMS.

LAMP. APPLIOATION FILED JULY 2, 1909.

' 1,002,890.` f Patented Sept.12,1911.

WITNESSE y g .@W. 1BY" ATTORNEY INVENTOR UNITED .sTATEs 'PATE-'NT OFFICE.

DAvIID A. WILLIAMS;v or sonanrroN,l PENNSYLVANIA, yAssreiaorjor -ONE-HALF To DAVIDR. JAMES, or scnAN'roN, PENNSYLVANIA.

Specication of Letters Vlatent. Application ltiled July 2, 1909. Serial Io505,5'63.

LAMP.

Patentedse'pe. 12, 1,911.

To all 'whom it 'may coacernf l Be it known that I, DAVID A. VVILnIAMs, alcitizen of theUnited States, residing at State of Pennsylvania, have invented certain new and useful Improvements in Lamps, of.

invention is directed particularly to the protype adapted for usey vision of a lamp ofthis l as a miners lamp, but 1t may also be employed in bicycle lamps and lamps for other uses.

' The primary object of my invention is to 'produce a lamp of this character which is far more simple in construction than those Scranton, in the county of Lackawanna and which have heretofore been proposed vandy which, because of its simplicity, can be manufactured at a greatly reduced cost and will not require frequent adjustment and repa1r as have the lamps of this type heretofore used. To this end, the lamp is made of a small vnumber of parts, which can be'readily manufactured and assembled at small cost and all the parts are so mounted that the jarring to which they are subjected in use will not disturb their positions so as to cause ineicient operation of the lamp.

I have illustrated the. preferred embodi-V central vertical section.v

Referring' to these "drawings, the lamp A consists of a water reservoir/1 and a carbid receptacle 2 detachably connected together, a water-tube' 3 for conveying the water from invention in the accompanying the reservoir to the receptacle, a gas-purifier 4 and a burner 5 towhich the gas' passes Afrqm the carbid receptacle through the puriv lier. The reservoir and receptacle are made of sheet brass,the latter consisting of a circular base 6 and a' strip 7 curved to a cylinder and secured to base 6 as by solderlng 1t thereto.' The upper edge of the side wall T of the receptacle is provided with a screw thread as shown at 8. The Water reservoir i' consists 'of .top and bottom plates 9 and '10 respectively 'and a strip 11 curved form a 4outlet at the end. lVithi receptacle, whereby these-twoparts may be secured together in such a manner as to permit `of readily'detaching them to remove the s laked carbid and inserta new .supplyrof unslaked carbid. Preferably a gasket 13 is employed at the base of the thread 8 with which the lower edge of the flange 12 coacts to make the carbid receptacle gas-tight. At the center of the top -of the reservoir is au 'opening in which a` plug 14 is secured by solder, this plug having a central threaded opening therethrough.

In the :bottom pla'tefO of the water-reservoir is vano'p'enin'gand the'upper end of a water-tube 3 is sealed into this opening. Tubefris'openat its upper end within the water reservoir, so that lthe water may flow ,the lower end of the tube the opening therethrough is tapered, as at 16, forming a small the tube is a Valve-rod 17 having its upper end threaded to coactvvith'the4 threads ofthe plug 14, and

onjthe upper end ofthe rod 17 is a handle or finger-piece 18 -by which the rod may be conveniently turned. The flower end of rod.

17 is tapered tori'correspond with the taper Vin the lower endlof the opening in tube 3.

To make the structure more rigid, I employ a piece 19"about the tube 3 directly` below the bottomplate 10 of the reservoir,- this bein-g secured both to plate 10 and tube y 42. This piece is: preferably a sheet-metal strip Wrapped`around the tube and soldered to plate 10 and tube 3;lit is preferably formedto provide a slightly tapered exterior -.v

Surface so as to holdthe solder within it and also to hold the water-distributer 20. This distributer is a tubular metallic member of slightly greater interior diameter than the `may pass to the carbid. In upositioningthe dist-ributer, it is moved up over the tube 3 until its upper portion/engages the tapered piece (1 9 'adfwpd'geatheren as to hold f exterior diameter of tube -3; it is closed at its tightly therein.

. points. The gas rising "he distributor firmly; when in this position the lower end of the distributer is near the lower end of the tube.

The gas-purifier consists of cotton, 4, or other suitable material in a holder 21 fixed upon the interior walls of the water reser,` voir. The holder is formed of a sheet-.metal plate by bending the plate to substantially the shape shown and securing this plate by solder to the wall 11 near the lower edge thereof. The entrance for the gas tothe purifier is through an opening in t-he bottom plate 10 ofthe water reservoir and holder 2l of the purifier is soldered to bottom plate 10 about the opening in the latter to make the reservoir water-tight. The gas outlet is a tubular member 22 secured in an opening in the wall 1l, and in this member is secured the burner 5. A reflector 23 isse` cured to the exterior of Wall ll around the burner. j

In the top of the water reservoir is an opening in which is secured a jamb 24. A cap 25 is hinged to the top of the reservoir adjacent to this j amb and may be turned on its hinge to close the opening and wedge To the wall 7 at a point opposite the reflector is secured means for s-.ipporting Ithe lamp, as the hook 2G shown when the lamp is used as a miners lamp.

The reservoir l is partially filled with water through the opening therein and this water flows through the opening in tube 3 the various openings in the distributer to the carbid in the receptacle 2. By turning the .rod 17 by means of its handle 18, the tapered end thereof may be moved toward or away from the tapered Wall of tube 3 so as to regulate the fiow ofthe water. water rises in the distributer so that it passes therethrough to -the carbid at a plurality of from the carbid passes over the wall of the holder 2l and is purified by the cotton 4 through which it passes in a downward direction to the burner. v

l't will be seen that the lamp thus made of very simple construction and that the and the tube to the distributer and through Copies f, this patent may be obtainedifor tive cents each, by addressin Washington, D; C.

The

parts thereof are all so rigidly held that they will not be jarred out of position when the lamp is in, use. Most of the parts are of sheet-metal, and for this reason particularly the lamp may be manufactured at very louT cost.

One of the important advantages of the construction herein shown and described is due to the fact that when the lamp is carried in the hand by means of the hook 26,. the gas will be properly fed to t-he burner. Though such miners lamps as that here shown are usually worn afiiXed to the miners cap, still the lamp is often carried'for a-eonsiderable vdistance in the hand. When so carried, it is -usually inclined at considerable of an angle, buteven when so carried, the lamp here shown will give a steady light. The location of the purifier above the carbid receptacle a vsubstantial distance, as here shown withinthe water-reservoir and communicating with the carbid receptacle through an opening in the bottom wall-0f the Waterreservoir, has been found in practice to be a feature of substantial importance, since .with this arrangement a much steadier light is obtained.

Having now described my invention, what I claim as new therein and desire to secure by'Letters Patent is as follows A lam comprising a Water reservoir, a carbid receptacle. a tubular member leading from the reservoir down into the. receptacle and'presenting a tapered exterior surface below the bottom of the reservoir, :1 Valve for regulating the'low of water in said tubular member, a tubular distributor having openings therein at various levels, said distributer fitting over said tubular member and having its upper end engaging and wedging upon said tapered. surface of the tubular member, a gas -purifier and a burner, substantially as set forth.

This specification signed and witnessed this 26th day of June, 1909.

DAVID A. WILLIAMS. YVitnesses: l

LEWIS HARRIS, WILLIAM JERvIs.

g the Commissioner of Patents.

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