Improvements in Buoyant Fabrics.
Year: 1892

page_text: Date of Application, 3rd Aug., 1892
Complete Specification Left, 2nd May, 1893-Accepted, 8th July, 1893
PROVISIONAL SPECIFICATION.
Improvements in Buoyant Fabrics.
We JOHANN GOTTLOB HEINZE, Pattern Designer, and KARL HEINRICH
REINMUTH, Weaver, both of 10 Leontinenstrasse, Reuss, Gera, in the Empire of
Germany, do hereby declare the nature of this invention to be as follows:-
This invention for improvements in buoyant fabrics has for its object to provide
a fabric for use as a lining or as an outer covering for articles of clothing in order
to render the clothing buoyant and thus to protect the wearer thereof from
drowning.
The fabric consists of two woven surfaces which either by the interlacing of the
weft threads in the weaving, or after weaving, by sewing together, are divided into
cellular spaces in which quills are inserted and secured.
Dated this 3rd day of August 1892.
WHEATLEY & MACKENZIE,
40, Chancery Lane, Agents.
COMPLETE SPECIFICATION.
Improvements in Buoyant Fabrics.
We, JOHANN GOTTLOB HEINZE, Pattern Designer, and KARL HEINRICH
REINMUTH, Weaver, both of 10, Leontinenstrasse, Reuss, Gera, in the Empire of
Germany, 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 object of our improvements is to provide a fabric, suitable for use as a
lining or as an outer covering for articles of clothing, and light enough to render
the clothing buoyant and thus to protect the wearer thereof from drowning.
The fabric has two woven surfaces or sheets, which form cellular spaces, either
by the interlacing of the weft threads in the process of weaving, or after weaving,
by sewing the sheets together in a suitable manner, and into the spaces thus
formed quills are inserted, and secured therein by sewing or other suitable means.
In the accompanying drawings,
Fig. 1 is a plan and Fig. 2 a cross section of a woven fabric in which the
cellular spaces or pockets for the quills have been formed in the act of weaving,
a' representing the upper and a' the lower surface.
Fig. 3 is a plan and Fig. 4 a cross section of a fabric composed of two
sheets a' and a³, sewn together at suitable intervals by parallel rows of stitches, so
as to form pockets, into each of which a quill is inserted, and which are afterwards
closed at the ends by transverse rows of stitches.
Fig. 5 is a cross section of a fabric in which each cellular space or pocket
contains two quills, instead of one.
Although we prefer to make the two sheets forming the cellular spaces, of a
light and strong woven fabric, they may be made of other material combining the
desired strength, pliability and lightness.
Having now particularly described and ascertained the nature of the said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is ;-
1. A woven fabric having pockets or cellular spaces which contain quills, the
said pockets being formed in the process of weaving, substantially as described.

page_text: 2. A buoyant fabric composed of two flexible sheets sewn together in such a
manner, as to form pockets or cellular spaces between them, and of quills contained
and secured in the said pockets, substantially as described.
Dated this 29th day of April 1893.
FAIRFAX & WETTER,
433, Strand, London, Agents.