US553959A

US553959A - And thomas

Info

Publication number: US553959A
Authority: US
Publication date: 1896-02-04
Anticipated expiration: 1913-02-04

Description

s Shts-Sheet 1.

' (No Model.)

J. GREGORY. SELF EXTINGUISHING LAMP.

No, 555,959. Patented P55. 4 18,96.

I (612,070 Grgwg/ AN DREW EBRAHAMJFEDYDUIHQWASNIN GTDPLD C.

\ (No Model.) 3 Sheets-Sheet 2.

J. GREGORY, SELF EXTINGUISHING LAMP.

V Patented Feb. 4, 1896."

(No Model.) 7 3 Sheets-Sheet 3.

'J. GREGORY. t SELF EXTINGUISHING LAMP.

No. 553,959. Patented Feb. 4, 1896.

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NITED STATES :ATENT OFFICE.

JOSEPH GREGORY, or SEATTLE, WASHINGTON, ASSIGNOR or TWO-THIRDS ro BESSIE HARDING MoRRILL, or SAME PLAcE, AND THOMAS APPLE- TON, or NEW YORK, N. Y.

SELF-EXTINGUISHING LAMP.

SPECIFICATION forming part of Letters Patent No. 553,959, dated February 4;, 1896.

Application filed April 11,1895. SerialNo. 545,354. (No model.)

To all whom it may concern: mounted and which limits the movements Be it known that I, JOSEPH GREGORY, a eitithereof. Y zen of the United States, residing at Seattle, Referring to Fig. 1 and the detail views of in the county of King and State of VVashingparts thereof, the numeral 1 indicates a wickton, have inventedanew and useful Self-Extube of ordinary construction and arrange- 5 tinguishing Lamp, of which the following is ment common in lamp burners using flat a specification. wicks. 2 is the gallery, and 3 the slotted cone This invention relates to that class of lamps or dome which incloses the upper portion of which are provided with wicks and operate the wick-tube. These parts are of well-known by drawing the oil from a suitably-disposed construction, and are shown simply to illus- 6o reservoir by means of the capillary attraction trate the application of the present-invention. of the wicking and in which the oil is eon- The tubular section 4 is adapted to move sumed at the end of a wick-tube, and the freely upon the upper portion of the wickobject of the same is the provision of such tube 1, and is provided on one side with parlamps with an improved extinguishing deallel lugs 5 for engagement therewith of the 65 vice, whereby the flame will be extinguished bent end of the operating-leverG. This tububy thetilting or upsetting of the lamp or by lar section 4 may be seamless or formed of athe fouling of the same. strip of sheet metal, which is formed into the The improvement consists of the novel fearequired shape and has its meeting ends jointtures and the peculiar construction and comed or brought in close relation, so that the 70 bination of the parts,which hereinafter will be part 4 will conform to the Wick-tube 1, with more fully described and claimed, and which which it telescopes. are shown in the accompanying drawings, in The operating-lever6 is formed of wire and whichis journaled between its ends in any desired Figure 1 is a perspective view of a burner manner to the frame or gallery of the burner, 75 embodying the invention. Fig. 2 is a View preferably by means of a strip of sheet metal similar to Fig. 1, showing the relative posi- 7, which is soldered or otherwise attached to tion of the' extinguishing devices when the the gallery and has its edge portion curled to latter close the exposed end of the wick-tube. provide a long bearing for the operating-le- Fig. 3 is a detail view of the cage for inelosver to insure proper movements of the latter. 8o ing the weight by means of which the ex- The inner end portionSis bent approximately tinguishing devices are held out of operation. at right angles, and is formed with the part Fig. 4 is a detail view of the operating-lever, 9, which engages with the parallel lugs 5 of showing its peculiar formation and adaptathe tubular section 4 and with the upwardly- 3 5 tion,whereby the desired results areattained. extending end 10, which carries the cap 11, 85 Fig. 5 is a perspective view showing the adapthe latter being designed to close the upper tation of the invention to a central draft end of the tubular section 4 when the latter burner. Fig. 6 is a view of the parts shown is at its highest position. The outer end perin Fig. 5 when the latter occupy a position tion 12 of the lever 6 extends down through to extinguish the flame, parts being broken the gallery and curves in an opposite direcgo away. Fig. 7 is a detail view of the form of tion to the bent portion 8 and is adapted to cage shown in connection with the centralbe engaged by a suitably-disposed trip 13. A air-draft burner. Fig. 8 is a detail view of spring 14 is arranged to act upon the lever 6, the operating -lever, showing the toothed so as to throw the extinguishing devices into wheel on its inner end. Fig. Qisadetail view operative relation when the said lever G is 5 of the perforated tubular section carrying the not held in check by means of the trip 13. cap. Fig. 10 is a perspective view of amodifi- This spring is arranged beneath the gallery cation. Fig. 11isadetailviewoftheweighted so as not to be affected by the heat of the trip. Fig.12 is a detail view of the supportflame, and is of the ordinary coiled type, one

ing-braeket upon which the weighted trip is end being attached to the curved portion 12 of the lever 6, and its opposite end being attached to a portion of the burner-frame or gallery.

A cage is located to one side of the gallery or burnerframe and is attached thereto by means of a fusible joint, which, in the event of the burner fouling and becoming enveloped by flame, will fuse or melt and permit the cage to drop and release the lever 6, and permit the spring 14 to regain itself and throw the extinguishing devices into operative position, as shown in Fig. 2, so as to put out the light. A band 16 encircles the lower portion of the cage and has an outer extension 17, to which the trip 13 is pivotally attached. A weight 18, preferably a hall, is located in the cage, and under normal conditions rests upon the long arm of the trip 13 and holds the latter in operative position against the tension of the spring 14. A depending extenston or stop 19 supports the inner end of the trip 13 and prevents the latter from moving downward under the action of the weight 18 and the tension of the spring 14. The short arm of the trip 13 engages with the curved end portion 12 of the lever (3 and holds the latter against the tension of the spring 14, and in such relative position that the tubular section 4' occurs at its lowest position on the wick-tube l, and the cap 11 is held to one side of the wick-tube, so as not to interfere with the flame.

The parts being assembled as herein shown, and the end 12 of the lever 6 being engaged with the trip 13, the wick-tube will be unobstructed and the lamp can be lighted in the ordinary manner. In the event of the lamp upsetting or tipping sufficient to displace the weight 18 the latter will become disengaged from the long arm of the trip 13, which will turn under the tension of the spring 14 and release the lever 6 and permit the extinguishing devices to come into play. As the operating-lever 6 is actuated the cap 11 is thrown over the upper end of the wick-tube and the tubular section 4 is moved upward, both movements being simultaneous, and the tubular section 4 being limited in its upward movement by the cap 11 with which it engages.

Should the burner become enveloped in flame by reason of the fouling of the lamp, the fusible joint between the cage and the burner will be melted, and the cage will become detached from the burner, thereby releasing the operating-lever, which will operate in the manner just described and extinguish the flame at the wick-tube, thereby preventing serious accident.

The invention is designed to be applied to any style of lamp-burner, and in Fig. 5 is shown in connection with a burner of the central-air-draft type. In this style of burner the tubular sect-ion 20 will be formed of reticulated or foraminous sheet metal, and will be adapted to telescope within the inner shell 21 forming the inner wall of the wick-tube 22. The cap 23 is attached directly to the upper end of the tubular section 20, and has a depending flange to embrace the upper edge portion of the wick-tube 22. The operatinglever 24 is j ournaled in the gallery 26 and the wick-tube 22, and has a toothed wheel attached to its inner end, which is constructed to take into the openings of the foraminous tubular section 20 so as to move the latter positively on the operation of the said lever 24 in either direction. The outer end portion 27 of the lever 24 is bent and curved slightly so as to be engaged by a trip 28, similar in construction to the trip 13, which is pivoted to an arm 29, extending from the cage 30, attached to the frame or gallery of the burner. This cage 30 is formed of wire, which is crossed at its lower end and forms a stop to limit the downward movement of the long arm of the trip 28. A spring 31 is arranged to actuate the lever 24 and apply the extinguishing devices in an emergency in precisely the same manner as hereinbefore explained. This spring, which is of the coiled type, is secured at one end to the burner, and at its opposite end to the lever 24 a short distance from the horizontal portion upon which the toothed wheel 25 is mounted, and this spring is so disposed that when the lever 24 is released the cap 23 will close the upper end of the wicktube 22. Obviously when the lever 24 is engaged with the trip 28 the cap 23 and its tubular section 20 will be elevated sufficiently far to permit the lighting of the wick, and when the lever 24 is released the spring 31 will regain itself and close the wick-tube in the manner just described.

From the foregoing it will be seen that the invention is extremely simple, and can be readily applied to any style of lamp-burner, and that it is thoroughly effective in opera tion, as it not only provides a cap for closing over the upper end of the wick, but also applies a surrounding portion in the tubular section, which closes the sides of the wick and prevents any possible escape of the flame to the spilled oil should the reservoir become broken. The simultaneous action of the tubular section and the cap effectually prevents the transmission of any flame from the burner to any surrounding oil, as will be readily understood.

The construction herein shown is preferred. However, changes in the form, proportion, and the minor details of construction may be resorted to without departing from the principle or sacrificing any of the advantages of this invention.

The style of burner shown in Fig. 10 is precisely the same as that shown in Fig. 1, and the tubular section 4, cap 11, and operating-lever 6 are identical in construction and relation with similar parts shown in Fig. 1 and the detail views thereof. The distinguishing feature resides in the weighted trip 32 and its supporting-bracket 33, the latter being attached to the burner by a fusible joint in substantially the same way as the cages which receive and support the movable weights. The weighted trip 32 is journaled upon a horizontal portion of the bracket33 and is limited in its movements by stops 34, forming an integral part of the bracket The bracket and the stops are formed, preferably, from a single piece of wire bent substantially in the form shown, said wire being attached at one end to the burner by means of a fusible joint.

The operation of the parts illustrated in Fig. 10 does not differ materially from the operation of the extinguishing devices shown in Fig. 1, the end of the operating-lever 6 bein g engaged with the short arm of the weighted trip 32, and on the tipping or upsetting of the lamp the weighted trip will change its position and release the lever 6, thereby permitting the extinguishing devices to be thrown into an operative position th rough the instrumentality of the spring 14 in the manner previously described.

Having thus described the invention, what is claim ed as new is 1. The combination with a lamp-burner, and automatic flame-extinguishing devices, of a counterbalanced trip for holding the flame-extinguishing devices out of working position under normal conditions, and a support bearing the counterbalanced trip and attached to the lamp-burner by a fusible joint which will separate in the event of the lamp fouling and release the flameextinguishing devices, substantially in the manner and for the purpose set forth.

2. The combination with a lamp-burner and fla1neextinguishing devices, of a cage connected with the lamp-burner by means of v and having an upwardly-extending end, a cap secured to the said upwardly-extending end and adapted to be moved thereby over the said tubular section and limit its upward movement, a spring having connection with the operating-lever, a trip for holding the operating-lever against the tension of the said spring, and a Weight normally constructed to hold the trip in operative position, and which will become displaced on the tilting or upsetting of the lamp, substantially as set forth, for the purpose described.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in the presence of two witnesses.

JOSEPH GREGORY. lVitnesses:

GEo. T. MILLS, DAVID C. HAY.