US605186A - Wick-lifting device - Google Patents

Description

(No Model.)

W. A. PENFIELD. WIGK LIPTING DEVICE.

No. 605,186. Patented June 7,1898.

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rnn STATES EFICJEQ BRADLEY dz HUBBARD MFG; CO.,

OF NEW HAVEN, CONNECTICUT.

WICK-LIFTING DEVICE.

. g SPECIFICATION forming part of Letters Patent No. 605,186, dated June 7, 1898. Application filed October 25,1897. Serial No. 656,269. (No model.)

To all whom it may. concern:

Be it known that I, WILLIAM A. PENFIELD, of Meriden, in the county of New Haven and State of Connecticut, have invented a new Improvement in W'ick-Lifting Devices; and I do hereby declare the following, when taken in connection with the accompanying drawings and the letters of reference marked thereon, to be a full, clear, and exact description of the same, and which said drawings constitute part of this specification, and represent, in-

Figure 1, a plan view of a wick-lifting device constructed in accordance with my invention the draw-bar being shown in section; Fig. 2, a view of the device in side elevation, the draw-bar being broken away, as well as the curved outer end'of one of the jaws; Fig. 3, a broken view showing the curved outer ends of the jaws in plan and the wick-tube and wick in horizontal section; Fig. 4, a de tached perspective view of one of the wickholders; Fig. 5, a view in vertical section showing one of the modified forms which my invention may assume; Fig. 6, a detached view showing the jaws with their operatingspring removed; Fig. 7, a detached view of spring.

My invention relates to an improvement in that class of wick-adjusting devices for central-draft or Argand lamps which employ two cast metal wick gripping jaws which are drawn toward each other by means of a spring and one or both of which are pivotally mounted upon the lower end of a draw-bar perpendicularly movable in the top of a lampfount, the object of my present invention being to improve such a device with respect to the adaptation of the jaws to grip the wick and with respect to the adaptation of the jaws for the application of the spring by means of which they are drawn together.

With these ends inview my invention 0on sists of two wick-gripping jaws having their upper faces formed with transverse springrecesses and of a spring set into the said recesses and extending transversely across'the jaws, withwhich it is connected.

In carrying out my invention as herein shown I employ two sheet-metal wick-holders A, having a centrally-arranged rivet hole a and provided at its respective ends with op- I positely-deflected doubly-beveled teeth A A.

These wick-holders are arranged horizontally and secured by means of rivets a a to the inner faces of the curved outer ends of the horizontallyarranged cast-metal wick -holding jaws B 13, upon which the said wick-holders are located at points directly opposite each other, as shown in Fig. 1. rangement the teeth of the two wick-holders in effect straddle a portion of the central drafttube C, upon which the tubular wick D is mounted, as shown in Fig. 3.

As shown in Fig. 5 of the drawings, each of the two sheet-metal wick-holders E E have an upwardly-deflected tooth e and a downwardlydeflected tooth c and are vertically arranged upon the inn er faces of the jaws F F, to which they are secured by means of rivets f f.

I now prefer to arrange the wick-holders horizontally, as shown in Figs. 1 to 4, inclusive; but the vertical arrangement shown by Fig. 5 willbe found effective and may be used, if desired.

These sheet-metal wick-holders may be made, if preferred, with more than two teeth or even with one tooth. I have found it suf Under this arficient to use two of the holders, though more i may be used. I also prefer to employ rivets for securin g the wick-holders to the jaws; but they might be secured thereto in someother way, such as by soldering or as by providing the wick-holders with fingers adapted to be clasped upon the jaws in a way too obvious to need illustration or further description.

Sheet-metal wick-holders formed with jaws are much more efiective than teeth cast inte gral with the jaws. Suchteeth when cast are stubby and clumsy and do not enter the wick so as to grip it firmly, but rather press the wick toward the tube and hold it against the same with so much force as to produce an unnecessary amount of friction and really impede the proper movement of the wick. They are also apt to be eaten and reduced to a stubby and inefiective form by the corrosive action of the oil. Moreover, the restrictions imposed by the operation of casting necessitate that the cast teeth shall have the same direction. Under my invention, however, the teeth may be bent in opposite directions, and thus made more elfective. I do not, however, limit myself to constructing the jaws as described nor to providing them with independently-formed sheet metal wick -holders, though I have found those to be extremely effective.

In carrying out my invention I form a transversely-arranged spring-recess G G in the upper face of each of the WlCl -jtWS, as plainly shown in Fig. 6,which represents the recesses as formed about midway the length of the jaws. The said jaws are also formed with outwardly-projecting extensions G G',the upper faces of which are located in the planes of the bottoms of the said recesses. The said extensions terminate in pins 9 9, over which the loop-like ends h h of the coiled spring 11 are caught, the said spring being received by the spring-recesses of the two jaws, with respect to which it is transversely arranged, as shown in Fig. 1. This is a compact and effective arrangement of the spring and locates the same where its power is exercised to the best advantage. It is also located in a retired and protected position and less liable to injury and derangement than when arranged as in the usual manner, in which it extends around the pivoted inner ends'of the jaws. One jaw is formed with a stop-pin I, received in a stoprecess 1, formed in the other jaw, whereby the opening movement of the jaws is limited and the spring prevented from being unduly extended. The inner ends of the jaws are adapted to be attached to the lower end of a perpendicularly-movable draw-bar J, mounted in the top of the lamp-fount, which is not shown. However, the construction and arrangement of the draw-bar and the particular mode of the attachment of the wick-jaws to it may be varied as desired, as they have no direct connection with my present invention.

In view of the changes suggested and of others that may obviously be made I would have it understood that I do not limit myself to the exact construction herein shown. Thus my improved spring may be used with jaws adapted in other ways to grip the wick, and vice versa. I am aware, however, that it is old to secure independently-formed sheetmetal wick-holders to wick-gripping jaws made of wire. I am also aware that it is old to employ a transversely-arranged spiral spring for drawing together the respective wick-gripping jaws of a wick-adjusting device. I do not, therefore, broadly claim either sheet-metal wick-holders or transversely-arranged springs.

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

In a wick-lifting device for central-draft lamps, the combination with a pair of horizontally-arranged cast-metal jaws, each of which has a transversely-arranged spring-recess formed in its upper face, and with an outwardly-projecting extension located in line with the said recess, a transversely-armnged spiral spring located in the said recesses of the jaws, and connected at its outer ends with the outer ends of the said extensions, and a vertically-arranged draw-bar with the lower ends of which one or both of the said jaws is pivotally connected.

In testimony whereof I have signed this specification in the presence of two subscribing witnesses. WILLIAM A. PENFIELD. WVitnesses:

WILLIAM A. HALL, ELMER R. LEwIs.

It is hereby certified that the residence of the assignee in Letters Patent No. 605,186, granted June 7 1898, upon the application of William A. Penfield, 0f Meriden, C0nnecticut, for an improvement in Wick-Lifting Devices, was erroneously written and printed New-Haven, Connecticut, whereas said residence should have been written and printed of same place (i. e. Meriden Connecticut) and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Office.

Signed, countersigned, and sealed this 14th day of JunerA. D., 1898.

[SEAL] WEBSTER DAVIS,

Assistant Secretary of the Interior. Countersigned C. H. DUELL,

Commissioner of Patents.

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