Improvements in the Manufacture or Treatment of Gelatinous Substances.
Year: 1889

page_text: Date of Application, 16th Feb., 1889
Complete Specification Left, 16th Mar., 1889
Complete Specification Accepted, 27th Apr., 1889
Improvements in the Manufacture or Treatment of Gelatinous
Substances.
33
We WILLIAM GRIDLEY, of 4 Bishopsgate Avenue, Camomile Street, in the City of
Riversdale Tierney
London, Isinglass Merchant, and FREDERIOK BAYLY PIKE of
Road, Streatham Hill, in the County of Surrey Manager to Messrs. Gridley & Co.,
do hereby declare the nature of our said invention to be as follows:-
:-
The object of this invention is to manufacture an improved material which may be
used in the place of, or as a substitute for, the well known isinglass of commerce and
which will be known as "Isinglassine."
In carrying out our invention we obtain the gelatinous material from calves feet
and other sources in the usual manner, the dried cakes or sheets being moistened and
welded or joined together for convenience.
The gelatinous matter is next thoroughly disintegrated and reduced to a pliable
homogeneous mass. It is then passed between rollers to reduce the thickness and also
between highly polished steel or other metal rolls from which the gelatinous material
issues in white sheets or ribbons, the width and length of such sheets or ribbons
depending on the amount of material used.
After being dried and pressed the gelatinous substance is cut into fine shreds by
means of machine, having revolving knives, each pound of material being cut into
125,000 shreds or thereabouts.
By the above means we are enabled to produce a material more readily soluble in
boiling water than the gelatinous substances now used.
Dated 15th Kahruar 1880
GEO: DOWNING,
Agent for Applicants.

page_text: COMPLETE SPECIFICATION.
Improvements in the Manufacture or Treatment of Gelatinous
Substances.
We WILLIAM GRIDLEY of 4 Bishopsgate Avenue, Camomile Street in the City of
London Isinglass Merchant, and FREDERICK BAYLY PIKE of "Riversdale" Tierney
Road, Streatham Hill, in the County of Surrey Manager to Messrs. Gridley & Co.,
do hereby declare the nature of our said 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 this Invention is to manufacture an improved material which may be
used in the place of, or as a substitute for, the well known Isinglass of couimerce,
and which will be known as Isinglassine.
In carrying out our invention we obtain the gelatinous material from calves feet
and other sources in the usual manner, the dried cakes or sheets being moistened and
welded or joined together for convenience.
.
The gelatinous matter is next thoroughly disintegrated and reduced to a pliable
homogeneous mass. It is then passed between rollers to reduce the thickness and
also between highly polished steel or other metal rolls from which the gelatinous
material issues in white sheets or ribbons, the width and length of such sheets or
ribbons depending on the amount of material used.
After being dried and pressed the gelatinous substance is cut into fine shreds or
staples by means of a machine, having revolving knives, each pound of material being
cut into 125,000 shreds or staples, or thereabouts.
By the above means we are enabled to produce a material more readily soluble in
boiling water than the gelatinous substances now used.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is:
1. The improved method of manufacturing gelatinous material, as a substitute for
the isinglass of commerce, substantially as herein before described.
2. The improvements in the manufacture or treatment of gelatinous substances,
substantially as hereinbefore described.
Dated 16th Mosh 1000