US970782A

US970782A - Safety lamp-burner.

Info

Publication number: US970782A
Application number: US53402409A
Authority: US
Inventors: Olai O Berquam
Original assignee: Individual
Current assignee: Individual
Priority date: 1909-12-20
Filing date: 1909-12-20
Publication date: 1910-09-20
Anticipated expiration: 1927-09-20

Description

0. 0. BBRQUAM. SAFETY LAMP BURNER.

APPLICATION FILED D30. 20, 1909.

970,782. Patented Sept. 20, 1910.

@- Zmzsszs: A g g .81 M urro zavzr OLAI O. BERQUAM, GRAFTON, NORTH DAKOTA.

SAFETY LAMP-BURNER.

Specification of Letters Patent.

Patented Sept. 20, 1910.

Application filed December 20, 1909. Serial No. 534.024.

To all whom it may concern:

Be it known that I, OLAI O. BERQUAM, a citizen of the United States, residing at Grafton, in the county of-Walsh and State of North Dakota, have invented a new and useful Safety Lamp-Burner, of which the following is a specification.

My invention relates to safety devices for oil burnin lamps; and the object is to pro'- Vide an efficient, unfailing automatic device that will extinguish the flame of the lamp as soon as the lamp happens to be turne over or upset.

In the accompanying drawing,Figure 1 is a side elevation of a burner of a common kerosene lamp Wlil'l niy safety device applied thereto; "the top of the burner is thrown open and only shown in normal posit-ion in dotted lines. Fig. 2 is a top view of the burner in Fig. 1 with-the staff 24 in section at the point a in F ig.-1. Fig. 3 is a ri ht handslde elevation of certain parts of Fig. 1. Fig. 4 is a detail view of the gravityoperated part of the mechanism. Fi 5 is a detail view of the gear, rock sha t and rocker-arm forming parts of the extinguishingimechanism.

eferring to the drawing by reference numerals, I have illustrated my device as ap- 3O plied to a common kerosene lamp burner, of

which 1 is the threaded stem to be screwed into the top of the oil-holder (not shown) 2 is a hollow table upon whose lower rim 3 the chimney (not shown) is supported between the usual guards 4, while upon the top 5 of the table rests the hinged cap 6,.having the usual central aperture \7 for the flame from the wick (not shown) in the wick tube 8, which tube is provided with the usual feed screw 9, having co ged wheels 10 for moving the wick up and down. There is also upon one side of the wick tube the usual small air tube or vent 11: and-the top of the table is perforated as at 12 to admit air upward the'rethrough.

Upon the perforated top .of the hollow table I secure a suitable frame 13, in whose vertically upstanding end portions or flanges are journaled two rock-shafts 14. 15, upon extlnguishing more promptly and safely,"the' other-shaft has a wing 17 acting as a door to said members are closed and the open side of the hood; the said door preferably fits partly into the hood, but it may also be made to simply meet the edges of the hood; or the two members may each form a half hood and meet each other centrally above the wick, as such variation would not effect the mechanism by which opened, and which will now be described.

The two

shafts

14 and 15 are made to rock in reverse direction by a pair of intermeshing gear wheels 18, 19, one of which is firmly secured on each shaft. The shaft 14 has one. end extended beyond the top of the table and provided with a rocker arm 20 formed with an eye 21, (see Figs. 2, 3 and 5) in which is very loosely fitted the portion 23 of a stafi 24, which above and below said ortion or neck 23 is provided with fixed col ars 25, by which the rocker arm is actuated. The upper end of thestafl is provided with a we1ght26, and the lower end is normally supported upon the head27 of a U-shaped arm 28, whose other end 29 is secured inside the hollow table, while the headed end 27 is held directly below a large a ert'ure in the tends through said aperture from the. head 27 below it to the rocker arm above it. The

rocker arm 20 is normally im elled downward by a spring arm 31 exten' ing through the aperture 30.and having one end secured at 32 within the table and the other end engaged at 33 with the rocker arm.

In the operation or use should the lam be over-turned on its side, or be much inclined .in either direction, the weight 26 will cause the bottom end of the stafi to move in the opposite direction and leave its support (the eye of the rocker. arm acting as fulcrum to the staff) the rocker ,arm is thus free to be operated by the spring 31, and the result is that the hoods are instantly closed in upon the top end of the wick tube and the flame is thereby extinguished. As soon as the lamp is righted again to normal position the hoods are spread from the wick tube to the position shown in Figs. 1 and 2 by simply putting the stafl' with its lower end upon thehead or support 27 The U-shaped form of the support is to permit the staff to escape freely at either side of the head 27.

In Figs. 2' and 3 is shopvn that each hood member is provided with an aperture 34 or "35 which are to admit air freely to the flame when the lamp is burning, when the hooda clearing in thelatter for said air tube 11.

37 is a clearing in the cap 6 for the rock shaft 14.

Having thus described the I'claim is:

1. In an oil lamp burner the combination with pivoted hood-members adapted to extinguish the flame by closing together above the top of the wick tube, of means gearing toinvention, what 'gether said hood members to make them close and spread in. unison, a rocker arm on one of the members, a stafi loosely ointed I to the rocker arm so as to swing in any direction with it'sends, a weight fixed on the upper end of the staff, a support fixed in or to the structureof the burner and-having a head-shaped portion for the lower end of the stafi to normally stand on, and ,a spring arranged to act on the rocker arm to close with pivoted hood-members adapted to ex.-,

tinguish the flame by closin together above the top of the wick tube, 0 means gearing together said hood members to make them close and spread in unison, a rocker arm'on' one of the members, a stafl? loosely jointed to the rocker arm so as to swing in any di rection with its ends, a vweight fixed on the upper. end of the staff, a support fixed in or to the structure of the burner and havingt'a head-shaped portion for thelower end of the staff to normally stand on, and .a spring arrangedio act on the rocker arm to close the hood members whenever .the stafi is brought beyond the supporting head; one of said hood members having a clearing for the usual air duct or tube at one side of the wick tube, and a wing adjacent the clearing for closing the upper end of the air tube when the hood members are closed.

i In testimony whereofI ailix my signature;

OLE OUvERsoN, P. A. BLAKs'L-nLU