US1502251A - Pccket stove - Google Patents

Description

s. K NAzAwA POCKET STOVE Filed June 28. 1923 gwuewtoz flrfoznaq To aZZ whom it may concern-.-

Patented July 22, 1924.

roam- Application filedlune Be it known that I, SADANosUKn Karm- ZAWA, a subject of the Emperor of Japan, residing at No. 2 Tashiro-cho, Kanda-ku, in the city of Tokyo and Empire of Japan, have invented certain new and useful Tmprovements in Pocket Stoves, of which the following is a specification.

This invention relates to a portable heat producing device, and more specifically a pocket-stove or warmer.

The device of this invention consists generally of a receptacle containing fuel absorbing material such as cotton and having a top plate provided with a central opening, to which is secured a sleeve, and into which sleeve is placed an inner sleeve hav ing on its periphery a plurality of longitudinal channels and an inwardly projecting lug or lugs for retaining a wick therein, which wick has a core composed of a spiral metal wire, and a heat producing element mounted on the said sleeve, which element contains asbestos carrying platina black or like material thereon.

An object of the present invention is to provide a pocket-stove or warmer which functions in most efiic'ient manner.

Another object is to construct a device of this character, in which any accidental interruption of the warming effect is prevented.

Other objects and advantages will be seen in the description which follows.

In order that this invention may be clearly understood and readily carried into practice reference may be had to the appended explanatory sheet of drawings, in which:

Figure 1 is a front view of a pocket-stove constructed according'to the present invention, with one of the hinged cover plat-es removed, and partly in section.

Figure 2 is a perspective view of an inner sleeve.

Figure 3 is a plan view of said inner sleeve and an outer sleeve.

Referring to the drawings, numeral 1 indicates a receptacle adapted to contain benzine or the like. This receptacle 1 is of comparatively flat shape and is provided with two cover plates 2 hinged thereto at 3, only one such cover plate being shown in the drawing. The cover plates 2 are perforated as at 10. The receptacle 1 has secured thereto a top plate 4;, which is formed with sADA-NosUKn xenezaw'a, or TGKYO, JAPA s'rdvn. I

was, sea-arm. 642.372.

7 a centralopening. This top plate -h'as secured thereto an upwardly; extending sleeve 5'concentric withsaid-central opening; Inserted into the sleeve 5 is an inner sleeve 7 having on its .periphery a plurality of ridges 6 and slots 13 by which a plurality of channels are formed between the sleeve 7 and the inner wall of the outer sleeve 5. Preferably, the inner sleeve 7 is made of a corrugated sheet metal and is'formed with a lug or lugs 7 projecting inwardly, as shown in Fig. 2. Into the innersleeve 7 ispassed a wick 9 having a core 8 composed of a spiral metal wire, said wick 9 being held in its position by the lugs 7 on the inner sleeve 7 A heat producing element 12 is removably mounted onto the sleeve 5, as shown in the drawing. In this heat producing element 12 is filled a suitable quantity of asbestos, in which asbestos is placed platina black or like material. The receptacle. 1 is filled with a benzine absorbing material 11, for instance cotton thread, and is provided with an inlet opening for supplying benzine, said inlet being provided with a cap 14:.

From the foregoing it will be seen that benzine vapor produced in the wick 9 will pass through the space formed by the spiral wire 8 and the benzine vapor produced in the receptacle 1 will rise through the channels formed between the inner sleeve 7 and the inner wall of the outer sleeve 5, and that the same will come into contact with the fibres of asbestos carried by the heat producing element 12 which will be thus caused to glow. The heat producing element 12 will thus produce and give out a desired amount of heat. By referring to Figure 1, it will be noted that the wick 9 is securely held in its proper position in the inner sleeve 7 by the lugs 7 formed thereon, the latter preventing the wick 9 from dropping down. Consequently, there is no tendency of causing any accidental interruption of the heat producing eifect.

What I claim is 1. A pocket-stove consisting of a receptacle for volatile liquid fuel provided with a top plate having a central opening, an outer sleeve secured to the said top plate and concentric with said central opening, an inner sleeve formed with a plurality of longitudinal channels on its periphery and also formed with an inwardly projecting lug or lugs, and a wick passed into said in- I lug 0i ll ugs; the arrangement being s iclr that the vapor produced in the receptacle rises through thechannels formed on th iph er) of the inner sleeve.

2. A pocket-stove consisting Of a recep- "in-the Wick passes through the clearance tacle for volatile liquid fuel provided ivith a top platerhaving awc entral opening an outer sleeve-secured t6 the said' topplate and; concentric. "with, sa1d central qpeni ng,

I an inner. sleeve. fprrned. with a ipluralityi'of ;l 0ngit u,di n al channels on. its. periphery and or lugs, said Wick having a core composed 0f;al1spii aliizmetall=Wire which is arranged in such a manner that the Vapor produced formed. h y the spiral Wire and thence upwardlyfhroligh=the central space. I In testimonyfwhereof I afiix my signature. a 7' ,T JADANQSQ KANAZ W

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