Improvements in Waterproofing Cartridges.
Year: 1894

page_text: Date of Application, 16th June, 1894
Complete Specification Left, 16th Apr., 1895-Accepted, 18th May, 1895.
PROVISIONAL SPECIFICATION.
Improvements in Waterproofing Cartridges.
I FREDERICK WEAVER OLIVER Lithographer, 259 Burdett Road Lime-
house, E. do hereby declare the nature of this invention to be as follows:-
I take paper which has been prepared with liquid celluloid under Annison's
Patent 19710 of the 13th Nov. 1891 and form cartridge cases of it in the usual
way with paste between the layers of paper, or by rolling up the paper while still
wet with the liquid celluloid which serves as a cementing material in place of
paste. The cases are dried & finished in the usual manner or in hot chambers.
I also prepare the ordinary cases as usually made by dipping them in liquid
celluloid or brushing them over with the liquid either inside or outside or both.
Dated this 15th day of June 1894.
I, FREDERICK WEAVER OLIVEr, Lithographer, of 259 Burdett Road, Lime-
house, E., 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 :-
According to this invention I manufacture the tubular portion of cartridge cases
from paper which has been coated with liquid celluloid as described in the
Specification of a Patent granted to F. G. Aunison No. 19710 of 1891.
The paper may be coated or impregnated on one side with liquid celluloid and
before it is dry rolled up into a tube either on a mandril or by forcing it into a slit
cut lengthways in a tube the internal diameter of which is the same size as the
desired external diameter of the cartridge or may be formed into a tube by other
suitable methods. The paper may be cut either before or after impregnation into
the right width for the length of the tube and similarly it may be cut into the
right length so that the tube may be of the desired thickness, either before the
rolling is commenced or after.
Or the paper may be impregnated on one side with liquid celluloid and dried
and the other side then coated and the tube made as in the first method.
By another method one or preferably both sides are impregnated with liquid
celluloid and dried liquid celluloid paste (which is preferably made not quite so
liquid as that used for impregnating) is then applied to one surface of the paper,
preferably by means of a roller or spreading knife, and the tube is then formed as
before. If the paper is impregnated on one side only it is better to apply the
paste on the other side, but it may be applied on either side.
Or by another method one side of the paper having been impregnated with
liquid celluloid and dried (the other side may or may not be impregnated) a solvent
is applied which thereby softens the celluloid and the paper may be rolled into a
tube the same way as before. The solvent may be one of the ordinary solvents of
Price 8d 1

page_text: celluloid, and the side of the paper to which it is applied should be coated with
several coats of liquid celluloid.
When the tubes are formed by rolling the paper around the exterior of a
mandril they may be dried before the mandril is withdrawn by bringing a heated
roller into contact with them whilst the mandril is being revolved.
Preferably the tubes are made of sufficient length for forming two cartridge
cases. After the mandril has been withdrawn from the tube one of the end caps
used for closing one end of the cartridges is secured to each end of the tube and
afterwards the tube is divided into two to form two cartridge cases.
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 waterproof cartridge having the tubular portion of its case formed of paper
that has been coated with liquid celluloid rolled up into a roll and with the
succeeding layers cemented together by a paste of like nature.
2. The manufacture of the tubular portion of cartridge cases from paper that
has been coated on one side with liquid celluloid and allowed to dry by subsequently
coating it on the opposite side with paste or liquid of like nature and rolling it up
into a tubular roll.
3. The manufacture of the tubular portions of cartridge cases from paper that
has been coated with liquid celluloid and allowed to dry by afterwards wetting it
on a coated side with a celluloid solvent and then rolling it up into a tubular roll.
4. The manufacture of waterpoof cartridge cases substantially as described.
Dated this 16th day of April 1895
F. W. OLIVER.