US783799A - Wick-raiser for central-draft lamps. - Google Patents

Description

PATENTED FEB, 28, 1905.

W. A. PENFIELD.

WIGK KAISER FOR CENTRAL DRAFT LAMPS.

APPLIOATION FILED DEC. 30, 1904.

lUhJlTlED YLEateuted February 28, 190%.,

Fi i C,

WlliLIAM ALLEN PENFIELD, OF MEBIDEN, CONNECTICUT, iliSSlGNOR TO THE BRADLEY & HUBBARD MFG. CO, OF h IERII DEN, CONNE "JTHJU'F, A

CORPORATION.

WlCM-WAlSlEl-i FOP! CENTRAL DRAFT LAlWPiS.

SPECIFICATIDN' forming part of Letters Patent No. 783,799, dated February 28, 1905.

Application filed December 80, 1904:. Serial No. 238,896.

To It IU/UOIII/ fl; 'IJ'ML concern:

pie it known that I, WILLIAM: ALLEN PEN- FIELD, a citizen of the United States, residing at Meriden, in the county of New Haven and 5 State of Connecticut, have invented a new and useful improvement in ick-Raisers for Central-Draft Lamps; and I do hereby declare the following, when taken in connection with the accompanying drawings, and the fig- 1 ures 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 l, a side View, partially in section, of such parts of a central-draft lamp as are necessary to illustrate my improved wick-raiser; Fig. 2, a top or plan view of the same with the upper end of the wick-arresting spindle broken away; Fig. 3, a broken side view of 2 the wick-carrier and rack connected there with, the upper end of the wick-tube being broken away to show the spring wick-gripping jaws and illustrating the cngagementof the lug on the rack with the bridge.

This invention relates to an improvement in wiek-raisers for central-draft lamps, and particularly to such as are provided with a rack and pinion for adjusting the wick, the object of the invention being a simple arrangement 3 of parts whereby the wick-holder may be readily raised when desired to remove or adjust the wick with relation thereto and also to indicate when the wick has been burned to such an extent that adjustment is desirable; and the invention consists in the construction as hereinafter described, and particularly recited in the claims.

In carrying out my invention I employ the usual tubular wickcarrier 2, shell 3, and 4 outer wick-tube 4:, through which the wickcarrier extends. Secured to the tube t within the shell 8 is a bridge 5, through which the shank 6 of an adjusting-pinion 7 extends, the inner end of the shank being upset within the tube, so as to swivelly connect the same thereto. Secured to the lower end of the tube 4 is a rack 8, which extends upward through the shell 3 and bridge 5, the teeth 9 of the rack meshing with the pinion 6, so that as the pinion is turned the tube will be raised or lowered. At a predetermined point on the forward face of the rack is a lug 10, adapted to engage with the lower edge of the bridge 5, as shown in Fig. 3, and thereby arrest the upward movement of the wick. The thickness of this rack is less than the space between the bridge and the tube, and when it is desired to raise the wick-tube, so that the spring-jaws 11 thereof may be released from the wick, the rack is pressed inward toward the tube, so as to disengage the lug 10 from the lower end of the bridge and permit the same to pass upward through the bridge under the continued movement of the pinion. When raised so that the spring-arms extend above the upper end of the wick-tube, they will spring outward, thus releasing the wick and allowing it to be adjusted or removed, as desired. Upon turning "the pinion the rack moves downward, turning the wick with i and after the lug passes below the bridge the rack moves outward, so as to bring the lug into the path of the edge of the bridge and so as to act as a stop to limit the upward movement of the rack, it being understood that the rack will yield to permit it to be pressed toward the tube, although it will normally bear against the inner face of the bridge, so as to assure the lug coming in contact with the lower edge thereof. To permit the rack to have suliicient spring action, it maybe reduced in thickness near its lower end, as indicated at 12 in Fig. 1.

It will thus be seen that by a very simple arrangement and without interfering with the action thereof means are provided to arrest the upward movement of the wick at a predetermined point, and yet permit the wick to be raised and released from the wick-tube when desired.

Having fully described my invention, what 1 claim as new, and desire to secure by Letters Patent, is

1. A wick-raiser for centrald'aft lamps comprising a wick-carrier, a vertically-arranged rack connected therewith, a pinion enlug on said rack adapted to engage with the lower edge of said bridge, and a pinion engaging with said rack for raising and lowering the same, substantially as described.

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

WILLIAM ALLEN PENFIELD.

IVitnesses:

WI LIAM A. HALL, C. l). NEWBURY.

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