US430870A - James acton miller - Google Patents

Description

(No Model.)

J. A. MILLER LAMP.

No. 430,870. Patented June 24, 1890.

UNITED STATES PATENT CEEIC JAMES ACTON MILLER, CF HARTFORD, CONNECTICUT.

LAMP.

SPECIFICATION forming part of Letters Patent No. 430,870, dated June 24, 1890.

Application filed March 21, 1890. Serial No. 344,839- (No model.)

To all whom, it may concern.-

Be it known that I, J AMES ACTON MILLER, a citizen of the United States, residing at Hartford, in the county of Hartford and State of Connecticut, have invented certain new and useful Improvements in Lamps, of which the following is a full, clear, and exact specification.

The invention relates to the class of oillamps which can be adjusted to extinguish the flame when desired; and the object of the invention is to provide a simple and positive contrivance which may be set so that after a certain quantity of oil is consumed the wick is drawn down into the wick-tube too far for the flame to burn.

Referring to the accompanying drawings, Figure 1 is a side view of a lamp provided with my improvement with the wick raised, part of the shell being broken away to show the interior. Fig. 2 is a side view of the lamp with the wick drawn down into the wicktube as when the flame is extinguished. Fig. is a plan view of the same with the parts set as when the wick is raised. Fig. 4 is a detail view, on an enlarged scale, of a part of the float-rod and adjustable catch.

In the drawings, where my improvement is shown as applied to a central-draft lamp, the letter a indicates the shell, b the wick-tube, and c the circular wick which surrounds the central draft-tube (Z, and is adjustable between the wick-tube and the draft-tube. A rod e, which passes into the shell, is attached at one end to the wick, preferably by a band of metal e, while the outer end is connected with the ad justing-rod f, that passes down through the shell and terminates in a handle 7 below the oil-chamber. Upon this rod is placed a sliding tube that is normally held downward by the pressure of a spring 7b. This tube is provided with a set-screw 9', whereby it may be secured to the rod, and with a lug or collar g, that projects into the path of oscillation of a lever The lever t', which has an oscillation at right angles to the movement of the rod f and tube g, is so pivoted to a stud rising from the shell that when the tube is lifted the lever maybe movedso that one end will engage the projecting collar g" and prevent the spring from drawing the tube downward. \Vhen in this position, the opposite end of the lever is held by a hook j, that projects from a catch j, borne by a rod is, which passes into the oil-chamber and is connected with a float Z. This catch j, which has the hook j, preferably consists of a sliding collar, to which is pivoted a latch j, provided with a tongue j adapted to fit into a series of notches, indentations, or graduations which are formed on the rod 71; to hold the catch at the desired height on the rod. A spring at normally presses the longer arm of the lever away from the hook j, and a plate a is attached to form a guide and stop for this arm of the lever when it moves. \Vhen the setscrew g is loosened so that the rod f is free from the tube g, the wick may be adjustedin the common manner by means of the rod f, which is joined to the rod e,that is connected to the wick in the oil-chamber. In order to set the device so that the flame may be extinguished at the desired moment, the catch j is adjusted to the desired graduation on the rod and the end of the oscillating lever t' engaged by the hook j, so that when a certain amount of oil is consumed and the float permitted to drop the lever is disengaged from the hook j, and under the inpulse of the spring m is thrown outward, and this draws the opposite end of the lever from beneath the collar g on the tube 9, where it was placed, and allows the spring h to suddenly draw down the tube and the rod f, with which it is connected by the set-screw. This movement of the rod draws the wick downward between the wick-tube and the draft-tube so far that the combustion of the oil can no longer take place and the flame will go out. The catch j is adjusted upon the rod 7c, preferably by means of a collar bearing the pivoted latch that swings into and out of the notched graduations, so that the float may be adjusted with relation to the oil in the lamp without any light; but the collar may, if desired, be connected to the rod by a set-screw.

I claim as my invention- 1. In combination with the wick of a lamp, a rod attached to the wick and adj ustably connected,with a sliding spring-actuated rod, and a lever held in engagement with the springactuated rod by a catch that is forced upward by the buoyant pressure of a float in the oilchamber, substantially as specified.

2. In combination with the wick of a lamp, an adj usting-rod connected at one end to the wick and terminating at the other in a handle, a sliding tube adapted to be secured to the adjusting-rod, and a lever pivoted to the shell and adapted to oscillate to engage the tube with one end and with the other a catch attached to a rod connected with a float in the oil-chamber, substantially as specified.

3. In combination with the wick of a lamp, an adjusting-rod connected at one end to the wick and terminating at the other in a handle, a sliding tube adapted to be secured to theadjusting-rod, a spring to pull the tube downward,'and a lever pivoted to the shell and adapted to oscillate to engage the tube with one end and with the other a catch attached to arod connected with the float in the oil-chamber, substantially as specified.

4. In combination with the wick of a lamp, an adj usting-rod connected at one end to the wick and terminating at the other in a handle, a sliding tube adapted to be secured to the adj usting-rod by means of a set-screw, and alever pivoted to the shell and adapted to oscillate to engage the tube With one end and with the other a catch attached to a rod connected with a float in the oil-chamber, substantially as specified.

5. In combination with the wick of a lamp, an adj usting-rod connected at one end to the wick and terminating at the other in a handle, a sliding tube adapted to be secured to the adj usting-rod by means of a set-screw, a spring to pull the tube downward, and a lever pivoted to the shell and adapted to oscillate to engage the tube with one end, and with the other a catch attached to a rod connected with a float in the oil-chamber, substantially as specified.

JAMES ACTON MILLER. WVitnesses:

JOHN P. HEALY, HARRY R. WILLIAMS.

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