Improvements in the Manufacture of Surgical Sheets, Pads, and Bandages.
Year: 1889

page_text: Date of Application, 4th June, 1889
Complete Specification Left, 3rd Mar., 1890-Accepted, 5th Apr., 1890
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Surgical Sheets, Pads, and
Bandages.
I, WILLIAM BRADBURY ROBINSON the Younger, of Wheat Bridge House, New
Brampton, in the County of Derby, Manufacturer, do hereby declare the nature of
this invention to be as follows:-
This invention has for its object improvements in the manufacture of surgical sheets,
pads and bandages.
At the present time surgical sheets pads and bandages are sometimes made of
carded cotton enclosed between two gauze fabrics. Now in order to render such
sheets pads and bandages waterproof so that blood or other liquid may not percolate
through them I prepare a portion of the cotton of which the sheet pad or bandage is
made, in the following manner :-I boil the cotton fibre in a weak solution of glue or
other weak gelatinous solution. I then drain off the solution and proceed to treat
the fibre with a solution of alum. Afterwards I dry the cotton, card it and form it
into a sheet. I combine this sheet with another sheet of absorbent cotton and with
gauze fabrics as heretofore. The prepared cotton is on the outer side of the surgical
sheet pad or bandage and the absorbent cotton on the inner side.
Dated this 4th day of June 1889.
CARPMAEL & Co.,
Agents.
COMPLETE SPECIFICATION.
Improvements in the Manufacture of Surgical Sheets, Pads, and
Bandages.
I, WILLIAM BRADBURY ROBINSON the Younger, of Wheat Bridge House, New
Brampton, in the County of Derby, Manufacturer, 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 :-
This invention has for its object improvements in the manufacture of surgical sheets,
pads and bandages.
At the present time surgical sheets pads and bandages are sometimes made of
carded cotton enclosed between two gauze fabrics. Now in order to render such
sheets pads and bandages waterproof so that blood or other liquid may not percolate
through them I prepare a portion of the cotton of which the sheet pad or bandage is
made in the following manner:-I boil the cotton fibre in a weak solution of glue or
other weak gelatinous solution. I then drain off the solution and proceed to treat
the fibre with a solution of alum. Afterwards I dry the cotton, card it and form it
into a sheet. I combine this sheet with another sheet of absorbent cotton and with
gauze fabrics as heretofore. The prepared cotton is on the outer side of the surgical
sheet pad or bandage and the absorbent cotton on the inner side.
I find that solutions containing 10 per cent. of glue and 25 per cent. of alum are
suitable.
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
First. The combination of an absorbent sheet of carded cotton or other cellulose
material with a waterproofed sheet of carded cotton or other cellulose material sub-
stantially as described.

page_text: Second. The method of preparing the waterproof sheet by immersing it in a weak
solution of glue or other gelatinous material and a solution of alum substantially as
described.
Dated this First day of March 1890
WILLIAM BRADBURY ROBINSON, JUNIOR.