US645282A - Wick raising and controlling device for lamps. - Google Patents

Description

Patented Mar. I3', l900. MEYTROTT.

WAIBEL & n WICK RAISING AND CONTROLLING DEVICE FOR LAMPS.

(Application filed Oct. 25, 1899.)

(No Model.)

. 9 6 V ya :W

UNITED STATES PATENT OFFICE.

FREDERICK B. WAIBEL AND HENRY MEYTROTT, OF NEW YORK,

N. Y., ASSIGNORS TO THE MANHATTAN BRASS COMPANY, OF

SAME PLACE.

WlCK RAISING AND CONTROLLING DEVICE FOR LAMPS.

SPECIFICATION forming part of Letters Patent No. 645,282, dated March 13, 1900. Application filed October 25, 1899. Serial No- 734,722. (No model.)

1'0 a, whom, it may concern:

Be it known that we, FREDERICK B.WAIBEL and HENRY MEYTROTT, citizens of the United States, residing at the city of New York, in the county and State of New York, have invented an Improvementin Wick Raising and Controlling Devices for Lamps, of which thefollowing is a specification.

Our invention relates to a device for regulating and controlling the extent of the vertical movement of the lamp-wick, so as to pre vent the wick being raised or lowered too far. This device is adjustable and operates in connection with the rod from the wick-raiser and a means for raising and lowering the said rod.

In carrying out our invention we prefer to form a screw-thread upon the upper end of the rod and to employ a nut thereon and stops against which the nut strikes with the up-anddown movement of the rod. The rod usually passes through a tubular guide connected to the fount of the lamp, and we prefer thatthe top of this tubular guide shall form one of the stops, and we connect to the side of this tubular guide a vertical arm, the upper free end of which is bent over at right angles to the other portion of the arm and into an approximately-horizontal plane and is provided with an opening or forked end for the rod to pass through, and this arm becomes the upper stop for the nut.

In the drawings, Figure l is an elevation and partial section in which the base and fount of a lamp are shown with a central draft-tube; Fig. 2, a vertical section and partial elevation of the operating parts, and Fig. 3 is a plan View in which only part of the lamp-fount is shown.

The wickraiser a surrounds the central draft-tube, and connected to the lower end of the wick-raiser a is a rod b, the vertical portion of which is provided with teeth, forming a rack. This rod passes through the tubular guide f, connected to and rising from the upper surface of the lamp-fount. Through this tubular guide passes a shaft carrying the pinion 0, which meshes with the rack of the rod 1), and upon this shaft, outside of the tubular guide, is a hand-wheel or knob, by which the shaft and the pinion are rotated to raise and lower the rod 12 and the wick-raiser a.

As a device for regulating and controlling the extent of the vertical movement of the wick we prefer to form the upper end of the rod 1) with a screw-thread and to place a nut e thereon and to employ a rod (1, having a ver tical and a horizontal portion, the lower end of which is secured to the fount of the lamp or to the base of the tubular guide f. The outer free end of the rod dis perforated or forked to receive the upper end of the rod b.

As the rod 5 is raised or lowered by the hand turning the pinion 0, its shaft, and hand-wheel the nut e strikes either upon the top of the tubular guide f or upon the under side of the rod d, these parts forming stops to limit the movement of the rod 1), and consequentlythe movement of the wick-raiser a and the wick. This prevents the wick being raised too high or lowered too far, the idea being to prevent the wick being turned higher than is necessary for the proper size of the flame or carried too low into the fount, as in so doing there is risk of carrying down the fl'ame and igniting the gases in the fount above the oil.

As the wick burns and requires to be further raised for the proper size of the flame the nut c is rotated on the threaded upper end of the rod b, so as to allow the wick to be raised higher.

We do not limit ourselves to the precise devices employed for regulating and controlling the extent of the vertical movement of the wick so as to. prevent the wick being raised or lowered too far.

We claim as our invention- 1. The combination in a lamp with the wickraiser, the rod connected therewith and the means for raising and lowering the rod, of an adjustable device movable longitudinally on the said rod, devices for stopping the said rod in its vertical movement and regulating and controlling the extent of the vertical movement of the wick so as to prevent the same being raised or lowered toofar, substantially as set forth.

2. The combination in a lamp with the wick raiser a and the rack-rod I) connected there with and the pinion and shaft engaging the rack-rod for raising and lowering the same and the wick-raiser, of an adjustable device upon and connected to the upper end of the said rod and fixed stops against which the said adjustable device strikes as the said rodis raised and lowered, substantially as set forth.

3. The combination in alamp with the wickraiser a and the rack-rod I) connected therewith and the pinion and shaft engaging the rack-rod for raising and lowering the same and I the wick-raiser, of the nut e on the threaded

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