Improved Compound for Waterproofing and other purposes, Applicable also as an Acid Resisting and Insulating Material for Electric Cells.
Year: 1897

page_text: Date of Application, 15th June, 1897
Commutata Onerifention St SALL D
1007
Ancontrd
5th Enh
1000
Date of Application, 15th June, 1897
-Complete Specification Left, 14th Dec., 1907 Accepted, 5th Feb., 1908
PROVISIONAL SPECIFICATION
An Improved Compound for Waterproofing and other purposes,
Applicable also as an Acid Resisting and Insulating Material
for Electric Cells.
I, CARL BASWITZ, of 39, Alt Moabit, Berlin, do hereby declare the nature of this
invention to be as follows:-
This invention relates to a mixture of heavy oils or fats with asphalt or similar
substances, such as stearine, paraffin, fossil wax (ozokerit) vegetable wax and the
like, which are soluble in volatile carburet of hydrogen. The mixture may con-
tain one or more of these substances. As an addition vaseline is particularly
suitable. Variation of color may be effected by adding soluble fatty aniline colors.
The mixture is more particularly intended for employment in waterproofing
fabrics without destroying their flexibility. It can however be applied to other
purposes, such as a covering for electric cells, it being a non-conductor with great
power of resisting acids. It may be pointed out that the invention lies in com-
bining in one solution the substances, above mentioned, as a waterproofing
material with vaseline. The value of vaseline is derived from its property of form-
ing a homogeneous mixture with all the above mentioned substances, such as
asphalt, stearine, paraffin, and the like, and also by reason of its not melting away
at a high temperature as ordinary oils do. Furthermore, vaseline tends to sterilize
what it is mixed with. The materials used and their proportions will vary accord-
ing to circumstances. A mixture by weight of 15 per cent. of asphalt, 5 per cent.
of paraffin, 3 per cent. of vaseline and 77 per cent. of benzine has been found to
give good results in practice.
The fabric is impregnated with the mixture either by smearing, treatment in a
suitable machine or otherwise. The color of the fabric after impregnation differs
according to the material employed. In the case of asphalt, it would be brownish,
but other colors can be produced by adding soluble fatty aniline colors to the
impregnating substances or mixtures. If for example, it is desired to produce a
light grey, soluble fatty nigrosin is added to the impregnating mixture. In the
case of blue fabrics, a larger quantity of nigrosin is added. Yellowish fabrics
require soluble fatty buff to be added to the impregnating mixture which is thereby
darkened somewhat. Brown fabrics are treated likewise. Black is obtained by
impregnating blue black fabrics with a solution of asphalt without any other
coloring matter. For fabrics of a light shade, a light material such as paraffin,
vegetable wax or a mixture thereof can be employed as the impregnating body,
and a correspondingly smaller addition of soluble fatty aniline colors is made.
The following substances are especially suited for waterproofing. Cotton or linen
fabrics for the personal use of those occupied in the open air. Fabrics for awnings,
tents etc. Asbestos and other substances for covering electric cells. Woollen and
silk fabrics.

page_text: An Improved Compound for Waterproofing and other purposes,
Applicable also as an Acid Resisting and Insulating Material
for Electric Cells.
I, CARL BASWITZ, of 39, Alt Moabit, Berlin, 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:-
My invention relates to a mixture of heavy oils or fats with asphalt or similar
substances such as stearine, paraffin, fossil wax, (ozokerit) vegetable wax and the
like, which are soluble in volatile carburet of hydrogen, and to a solution con-
taining one or more of these substances, I add vaseline in suitable proportions.
Variation of color may be effected by adding soluble fatty aniline colors. The
mixture is more particularly intended for employment in waterproofing fabrics
without destroying their flexibility. It can however be applied to other purposes
such as a covering for electric cells, it being a non-conductor with great power of
resisting acids. It may also be used in the treatment of materials from which are,
or are to be made articles of wearing apparel. The essential feature of the inven
tion is the combining in one solution the above mentioned substances and vaseline.
The value of vaseline is derived from its property of forming a homogeneous
mixture with all the above mentioned substances, such as asphalt, stearine, paraffin,
and the like, and also by reason of its not melting away at a high temperature as
ordinary oils do. Furthermore, vaseline tends to sterilize what is mixed with it.
The materials used and their proportions will vary according to circumstances.
A mixture by weight of 150 parts of asphalt, 50 parts of paraffin, 30 parts vase.
line, and 770 parts of benzine has been found to give good results in practice. The
fabric is impregnated with the mixture either by smearing, treatment in a suitable
machine, or otherwise. The color of the fabric after impregnation differs accord-
ing to the material employed. In the case of asphalt it would be brownish, but
other colors can be produced by adding soluble fatty aniline colors to the impreg-
nating substances or mixtures. If for example it is desired to produce a light
grey, 40 grammes of soluble fatty nigrosin is added to 1 kilogramme of the
impregnating mixture. In the case of blue fabrics a larger quantity of nigrosin is
added. Yellowish fabrics require soluble fatty buff to be added to
the impregnating mixture which are thereby somewhat darkened. Brown
fabrics are similarly treated. Black is obtained by impregnating blue black
fabrics with a solution of asphalt without any other matter. For fabrics of light
shades, a light material such as paraffin, vegetable wax or a mixture thereof can
be employed as the impregnating substance, and a correspondingly smaller addition
of soluble fatty aniline colors is made. The following substances are particularly
suited for treatment with my improved waterproofing compound. Cotton and
linen fabrics for the personal use of those occupied in the open air. Fabrics for
awnings, tents etc., asbestos and other substances for covering electric cells.
Woollen and silk fabrics.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is:
--
An improved compound for waterproofing and other purposes, applicable also as
an acid resisting and insulating material for electric cells, the said compound con-
sisting essentially of a solution, in volatile carburet of hydrogen, of asphalt,
paraffin, stearine, vegetable wax or similar fats or any compound of any or all of

page_text: them, the said solution being mixed with vaseline in suitable proportions and if
desired dyed by the addition of soluble fatty aniline colors, the whole substantially
as described in the above specification.
Dated this 11th day of December 1897
HUGHES & YOUNG,
23, Coleman Street, London, E.C., Agents for Applicant.