US900282A - Extinguishing device. - Google Patents

Description

F. H URSTHOUSE.

- EXTINGUISHING DEVICE. APPLICATION FILED JULY 6, 1906.

Patented Oct. 6, 1908.

FIG}.

FIG. I.

INVENTOR.

WITNESSES.

onms 0., wnsuma FRANoIsHURsTHoUsE, OF MANCHESTER, ENGLAND.

EXTINGUISHING nEvroE. f

To all whom it may concern:

Be it known that I, FRANoIs HURSTHOUSE, a subject of the King of Great Britain and Ireland, and resident of Manchester, in the county of Lancaster, England, fitter, have invented certain new and useful Improvements in Extinguishing Devices, of which the following is a specification.

This invention relates to improvements in extinguishing devices and relates more particularly to extinguishing devices for paraffin and similar lamps burning hydro-carbon and like oils having as their characteristic features a pivoted or swinging weight in conjunction with flat disks adapted to operate a rod connected to an extinguisher device on the wick tube guish the flame when the lamp is tilted, the object of my invention being to prevent accidents due to the bursting of the oil reservoir or to the breaking of such when knocked over or let fall or in general to prevent the oil becoming alight through any of the causes,

referred to or by the undue tilting .or.pushmg or dragging of the lamp in any direction, by the provision of improved, simpler and more eflicient means than has hitherto been employed.

y invention consists in providing an. extinguishing device, the main operating parts of which are, preferably, locatedin the interior ofthe oil vessel orchamber, though they may be arranged outside such, the only external pa-rt generally being that which comes in direct contact with the upper end of the wick tube or wick, an essential feature of such device being the provision of improved means to obtain a greater lift of the extinguishing device proper with the minimum of movement of the lamp body and in the smallest possible space for effective operation. I

My invention may be appliedto lamps providedwith one or morewicks, with my improvements added thereto; but in these drawings which are quite sufficient to enable the character of the invention to be thoroughly understood, Figure 1 indicates a sectional elevation of a single-wick burner with my improvements shown in connection therewith, Fig. 2 plan of same, elevation taken at right angles to the view shown in Fig. 1, Fig. 4 a modification which will be hereinafter described, while Fig. 5, illustrates a slightly modified detail of the invention.

- i Specification of Letters Patent. Application filed July 6, 1906. Serial No. 325,032.

so that the latter may extinthe to interfere with the Fig. 3 sectional Patented Oct. c, 1908 -In the drawings referred to like reference characters indicate similar-parts in all the views.

In carrying out my invention with special reference to Figs. 1 to 4 I suspend in the interior of the oil vessel a rod a, the lower end of which is weighted or provided with a weight b. The upper end of this rod has secured to it a head 0 which may consist of brass or any other suitable material, the lower side of such head being semi-spherical or curved or otherwise adapted so that it may bear only and roll upon a small portion of its surface, while the top side 03 of the head is dished or curved out or may be fiat as indicated in Fig. 4. The rod a with its head is suspended in a skeleton frame 6 forming part of or attached to the underside of the screwed portion 7 of the burner g which screws into or is otherwise attached to the oil vessel or chamber, the manner of suspension being such that the weighted rod a is at liberty to swing about its pivotal point in any direction as will be understood bythe broken lines shown in Figs. 3 and 4.

The hole in frame 6 through which the rod a passesis countersunk on its underside for the purpose just stated. Above the head of pivoted rod I arrange a second rod h, the lower end 2' of which is provided with a ball or with a convex end which rests, upon the head a secured tubular portion j of the burner and up along one side of the wick tube is and preferably at the side opposite to that at which the wickregulating mechanism is arranged. This rod may be attached to a strip of metal m which I may term the extinguishing device proper and which may be arranged to have a certain resiliency or spring in it. This strip of metalmay be arranged in the form of a band or hands a adapted to embrace or pass over the upper end of the wick tube while its extreme upper end 0 is bent over or flanged in a direction towards the wick tube and its extreme point or edge ;0 may be serrated, as indicated in plan in Fig. 2 or provided with depressions in such a way as not passage of air towards the burning point of the wick. Normally, this serrated edge rests against the wick tube is, as will be clearly seen in Fig. 3, at a very short distance from its upper end, the temper or spring in the strip keeping it in contact therewith. The upward movement to the first rod a while the upper end of the rod passes through the I having a perforation, a weighted rod passing required vertical lift of the rod h to be ac- 'tube of a lamp burner, a skeleton frame deof the strip m, is limited by the stopsk, carried by the upper portion of the wick tube is.

In Fig. 4 the head 0 is made flat and the rod h is enlarged at the end or provided with a disk r against which the upper edge ofthe head may come in contact for extinguishing purposes. ticular attention to the construction of the" head 0 and its action with relation to the 1 disk 1. The convex or semi-spherical base of the head 0 rests upon the flat upper surface of the frame 6 consequently when the lamp is tilted so that the rod to and ball 6 assume'the broken line position the convex or spherical base rolls upon the frame and has an increasing leverage which enables the complished with the minimum of movement of the lamp body when the latter is tilted, pushed or dragged as will be clearly understood from Fig. 4.

In a device of the character described should the oil vessel be tilted or fall over or be pushed or dragged the weighted rod would swing in such a way that the head a would come in contact with the rod h and lift it, as will be understood from Figs. 3 and l. The serrated strip or strips, would thus be pushed up above the top edge of the wick tube as will be seen in Fig. 3 when the spring in the material causes such edge to pass over the wick tube and instantaneously extinguish the light so that no accident or damage would result. The parts are afterwards returned to normal position by pressing back the spring piece and pushing it downwards, suitable projections or other simple devices being provided for this purpose, if required.

What I claim as my invention and desire to secure by Letters Patent is r- 1. In combination with the cap and wick pending from the base of the cap, said frame through the perforation of the frame, a h cad on said rod contacting with the frame, the contacting portion of the head being conveXed and the opposing face conc-aved, a rod slidably held by the wick tube, said rod I would here draw parhaving a conveXed end engaging the concaved surface of the head, a resilient plate secured to said rod, said plate being provided with bands to embrace the tube, the upper portion of the plate being flanged, said flange beingheld normally in contact with the wick tube, said bands being of such length as to permit movement of the plate with relation to the wick tube.

2. In combination with the cap and wick of a lampburner, a skeleton frame depending from the base of the cap, said frame having a perforation, a weighted rod passing through the perforation of the frame, a head on said rod contacting with the frame, the contacting portion of the head being convexed and the opposing face concaved, a rod slidably held by the wick tube, said rod having a convexed end engaging the concaved surface of the head, a resilient plate secured to said rod, said plate being provided with bands to embrace the tube, the upper portion of the plate being flanged, said flange being held normally in contact with the wick tube, said bands being of such length as to permit moven'lent of the plate with relation to the wick tube and stops carried by the wick tube for limiting the movement of the plate upwardly thereon.

3. In combination with the cap and wick tube of a lamp burner, a skeleton frame depending from the base of the cap, said frame having a perforation, a weighted rod passing through the perforation of the frame, a head on said rod contacting with the frame, a rod slidably held by the wick tube, said rod contacting with the head of the first named rod, a resilient plate secured to the second named rod, said plate being provided with bands to embrace the tube, the upper portion of the plate being flanged, said flange being held normally in contact with the wick tube, said bands being of such length as to permit movement of the plate with relation to the wick tube.

In testimony whereof I have hereunto set my hand in the presence of two witnesses.

FRANCIS HURSTHOUSE.

\Vitnesses MABEL LEE, IVILLIAM A. CoLnBoRN.

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