US309996A - thomas - Google Patents

Description

. (No Model.) v 2 sheets-sheet 1.

' G. C. THOMAS.

LAMP.

Patented Deo. 30, 1884.

VH1 i (No Model.) 2 Sheets-Sheet .2.

G. C. THOMAS.

LAMP.

No. 309,996. Patented Deo. 30, 1884.

` UNTTED STATES Parser-T Ormea.

GEORGE C. THOMAS, OF VATERBURY, CONNECTICUT.

LAMP.

SPECIFICATION forming part of Letters Patent No. 309,996, dated December 30, 1884.

(Xo model.)

i To all whom it may concern..-

Be itknown that I, GEORGE C. THoMAs, of Wfaterbury, in the county of New Haven and State of Connecticut, have invented a certain new and useful Improvement in Lamps, of which the following is a specication.

My improvement relates particularly to that class of lamps wherein there is au elevated reservoir from which the oil or other iiuid used for illuminating` Hows to the burner.

My improvement consists in the combination, with a reservoir for oil or other fluid, having a delivery-opening near the bottom and a compartment arranged at the side or portion adjacent to said delivery-opening, and having its bottom open and extending down about as low as the top of the delivery-opening, of a tube extending downward from the upper portion of the reservoir into the said compartment.

The improvement also consists in the combination, in a lamp, of a burner-tube, an oil or fluid reservoir connected therewith, and having a filling-tube extending downwardly into it from the upper portion, a support to which the reservoir and supplytube are pivotally connected to enable the reservoir to be tilted for filling, and a support forthe chimney-gallery and shade-holder admitting oi' their adjustment to shift them and the chimney and shade so that they will not be in the way of the bu rner-tubc during the tilting ofthe reservoir.

In the accompanying drawings, Figure 1 is a side View of a lamp embodying my improve ment, the reservoir and certain other parts being shown in section, and the base or end piece of the supporting-rod being omitted. This tigure also includes dotted outlines of certain of the parts in different positions from those in which they are represented in bold outlines. Fig. 2 is a view of the supporting- .rod and certain of its appurtenances. Fig. 3 is a horizontal section ot' the reservoir, (including a representation in dotted lines of the filling-tube and the enlarged chamber with which it communicates) the oil or fluid supply tube, the support therefor, and means whereby it is connected to the support. Fig.I 4 is a vertical section of a reservoir and supplytube illustrating a modification of my improvement, and Fig. 5 is a view of a modification thereof.

Similar letters of reference designate corresponding parts in all the figures.

Referring first toFigs. l, 2, and 3, A designates a supporting-rod which may be erected on any suitable basepiece, or may be suspended from above.

B designates the reservoir of the lamp. C designates the supply-tube, whereby oil or other tluid is conveyed from the lower end of the reservoir to the burner-tube D,wherein the wick is arranged. The supply-tube C is connected toa collar, E, which tits the rod A, and may be secured in different positions thereon by means of a set-screw, a. These parts may bc made of the usual materials. The reservoir is shown as permanently closed, and it is provided with a filling-tube, F, which in this example of my invention extends from the upper part to the lower part. The mouth of this filling-tube extends through the side of the reservoir, and itslower end communicates with a chamber or compartment, G, of segmental form extending across the lower part of the reservoir at the side or portion at which is the delivery opening. This chamber, as here shown, is open at the bottoni, but is closed elsewhere, save where the filling-tube F enters it. The compartment or chamber G eX- tends about as low as the top of the deliveryopening. The supply-tube C is provided with a circular socket, I), which extends transversely therefrom, and fits on a round stud` c, that projects from the collar E. The socket b isprovided with a circumferential groove or slot, e, which terminates at one end in an axial extension, f. A spring, g, tting between the stud c and the socketb, tends to force the latter outward, so as to cause the axial extensionf of the groove to slide over a pin, h, which extends from the stud c. Vhen this occurs the reservoir, supply-tube, and burner-tube are locked in their normal positions. l/Vhen the socket bis pushed inward against the resistance of the spring g, the axial extensionf of the groove or slot is disengaged froin the pin h, and then the reservoir, supply-tube, and burner may be tilted so as to bring the filling-tube Fof the reservoir into an approximately horizontal 'position, as indicated in dotted lines in Fig. 1. YVhen the reservoir is in this position, oil or other duid may be poured into it through the filling-tube, the air escaping during the operation through the latter. After the parts are turned into and locked in their normal positions the oil or iiuidiiows down the supplytube to take the place of that which is consumed in the wick, and air enters the reservoir to take its place through the filling-tube. The chamber G- extends below the top of the burner-tube, and the pressure of air on the oil afforded by it prevents any overflow at the tip of the burner-tube. The wick may be adjusted by any suitable means, for instance, by a spiral tube rotated by the dri p-cup H, and engaging with a non-rotary spiral wick-carrier. The drip-cup may be detachably connected with the said spiral tube, so as to facilitate emptying it.

I designates a chimney-gallery, and J designates a chimney supported therein.

K designates a shade-holder, andtLashade sustained by it. Both the chimneygallery and the shade-holder are connected to an arm, M, extending from a collar, N, which fits upon a sleeve, O, extending upwardly from the collar E. This sleeve has a longitudinal feather or rib, j, with which engages a groove, Z, on the collar N, so that the chimney-gallery and shade-holder will be maintained in their proper positions with the chimney-gallery over the burner-tube. By raising the collar or socket N above the feather]` and turning it slightly around, as indicated in dotted lines in Fig. 1, it may be supported'on the top of t-he feather with the chimney-gallery, chimney, shadeholder, and shade in positions where they will not interfere with the tilting of the reservior, in the manner before explained.

In Fig. 4 the reservoir B, filling-tube F, and chamber G are the same as those just described, save that the latter are arranged in a vertical plane at right angles to the vertical plane in which the supply-tube C is arranged. The supply-tube is not intended to tilt, but will have the ordinary rigid connection with the collar which fits the supportingrod. The end C of the supply-tube isniade in the form of the plug of a cock,and iits in a socket which is similar to the barrel of a cock and affixed tothe reservoir. The reservoir can be rocked upon and transversely to the supply-tube, to bring the iilling-tnbe into the proper position to receive the oil or other fluid. rIhe end of the supplytube and its socket may be provided with ports, so that communicat-ion between them will be cut off when the reservoir is rocked over, but so that communication between them will be established when the reservoir is adjusted to its normal position. By my invention I dispense with the ordinary reservoir which is removed for filling.

Preferably, in each modification of myA in1- provemeut I apply to the outer end of the filling-tube F a perforated plug, F', so as to prevent oil from rapidly flowing out of the tube in the event of the lamp being turned over. Such plug will be most advantageously made of sheet metal, and hollow,with small apertures p p', as then, if the lamp should be turned over,the oil would have to flow through the aperture p into the plug, and to accumulate there considerably before passing out through the aperture p. The plug may be secured in place by a screw-thread.

As there will he little chance of oil being spilled in any considerable quantity in the event of my lamp being upset, the lamp is more safe t-han the lamps which are in common use.

I am aware that it is old to make a nontilting lamp-reservoir having a chamber with a closed bottom entirely across the lower end of said reservoir, and a pipe extending from the top of the reservoir through it and into the chamber, said reservoir also having on its top a vent-tube provided with a stop-cock. The advantage of my improvement over that referred to consists in thatI am enabled to use a very small chamber, thereby occupying but little space in the reservoir. I avoid the use ot' the vent-tube and stop-cock, and the feed of oil will be more frequentand therefore more uniform.

XVhat I claim as my invention,aud desire to secure by Letters Patent, is-

1. The combination,with a reservoir for oil or other iiuid,havinga delivery-opening near the bottom and a compartment arranged at the side or portion adjacent to said deliveryopening, and having its bottom open and extending down about as low as the top of the delivery-opening, of a tube extending downward from the upper portion ofthe reservoir into said compartment, substantially as herein described.

2. The combination of a burner-tube, an oil or fluid reservoir connected therewith and having a filling-tube extending downwardly into it from the upper portion, a support to which the reservoir and supply-tube are piv-v otally connected to enable the reservoir to be tilted for filling, and a support for the chim ney gallery and shade -holder admitting of their adjustment to shift them and the chimney and shade ont of the way of the burnertube during the tilting of the reservoir, substautially as specified.

The combination of the collar E, provided with the stud c, having the pin h, the supplytube having the socket b, furnished with the slot c f, and the spring g, substantially as specified.

4. The combination of the collar N, provided with the groove l and arm M, and the sleeve O, provided with the feather or rib j, substantially as specified. i

' GEORGE C. THOMAS.

-Vitiiesses: I

Fnnnii. HAYNES, T. J. KEANE.

ICO

IIO

Images