Process for Manufacturing a Smokeless Inflammable Wick.
Year: 1897

page_text: Date of Application, 14th May, 1897-Accepted, 4th Sept., 1897
COMPLETE SPECIFICATION.
Process for Manufacturing a Smokeless Inflammable Wick.
I HEINRICH FREISE of Hamme-Bothum, in the Kingdom of Prussia, German
Empire, Teacher, do hereby declare the nature of this invention and in what
manner the same is to be performed, to be particularly described and ascertained in
and by the following statement:-
The subject of the present invention is a process for the manufacture of a flat
inflammable wick, the peculiar nature of the inflammable composition of which, as
well as the arrangement of the material, renders it entirely free from the drawbacks
attendant on the use of the inflammable wicks till now in the market.
The defects of these latter wicks are particularly felt in the case of miner's lamps,
the smoke arising on lighting, and the gases evolved, filling the lamp, since the
construction of the latter does not permit of their escape readily enough. The products
resulting from the consequent condensation of the smoke and gases are deposited
on the lamp-glass, rendering it partially opaque, whereby the illuminating power
of the lamp, at no time very great, is considerably decreased. Furthermore the
wicks at present in use being subject to the influence of the weather, frequently
refuse to take light. Attempts have been made to overcome this drawback by
coating with paraffine or wax, but owing to the inelastic character of the material,
these coatings have proved unsuccessful. By the present invention all these defects
have been remedied, the material acquires a decidedly firm character and burns away
at an extremely slow rate.
The manner of manufacturing the inflammable composition is as follows. The
material of the wick proper consists either of a loose or coarse texture of felt or
similar web, such as fustian, flannel or the like, which are suited by their character
to receive powdery substances, which may be fixed by appropriate adhesive medium,
such as glue, gum, albumen of any origin, or resins of every base and solvent medium
which at the same time promote cohesion. Or the wick may be composed of paper
or paper pulp; in the case of the former the powdery substance is applied and fixed
as above mentioned; in the case of pulp, on the contrary, it is intimately mixed in.
The materials for coating the wick proper consist of inflammable paste like those
of sulphur matches, and of sulphur powdered, with the addition of a compound of
oxygen; as also of powdered sulphur with or without the addition of oxygen
compounds, for instance chlorate of potassa, in combination with a substance for
maintaining the flame, such as paraffine, stearine or the like.
The before mentioned material forming the wick proper is treated in the following
manner first comes the order of treatment, the material receiving three coatings,
(1.) inflammable paste, (2.) powdered sulphnr with a compound of oxygen,
(3.) powdered sulphur with paraffine, stearine or the like.
Such is effected in the manner described above, that is to say, in the case of
inflammable paste, by admixture with the paper pulp, or by fixing on the wick
proper with an appropriate adhesive medium; and in the case of the two mixtures
containing powdered sulphur, either in the same way, or by passing through heated
rollers; or by a combination of the before mentioned means. The third coating can

page_text: also at first consist only of powdered sulphur, and then be saturated subsequently
with stearine, paraffine, or the like..
After the wick has been prepared in this manner, it may receive, on one or both
sides, a coating of smokeless combustible material, such as collodion.
By this means the wick is (1.) protected from damp, and (2.) rendered capable
of readily catching light, and of never failing to take light when required.
Having now particularly.described and ascertained the nature of my said Inven-
tion, and in what manner the same is to be performed, I declare that what
I claim is
.
1. A smokeless inflammable wick consisting of a loose, coarse felt or similar
texture, or of paper or paper pulp, covered with three coatings of material
substantially as described.
2. The manufacture of the coating-materials (Claim 1): (1.) of inflammable paste,
(2.) of powdered sulphur with the addition of a compound of oxygen, and (3.) of
powdered sulphur with or without a compound of oxygen, in combination with
stearine, paraffine or the like, all substantially as described.
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1
3. The manufacture of the third coating-material firstly without the combination
of stearine, paraffine or the like, but subsequently, saturated with the same
substantially. as described.
4. The fixing of the coating-materials. to: the wick.proper. with suitable adhesive
means such as glue,, gum, albumen of any origin,, resins of every base and solvent
medium substantially as described.
5. The fixing of these coating-materials by adding to the pulpy material forming
the wick, proper substantially as described.
6. The fixing of the. coating-materials, containing sulphur by, passing through
heated rollers substantially as described.
7. The fixing of the coating-materials by a combination of the different processes
substantially as described.
THE FILM.1007
WHEATLEY & MACKENZIE,
40 Chancery. Lane London. W.C., Agents.