IMPROVEMENTS IN THE METHOD OF STOPPERING OR CLOSING FLASKS, CANISTERS, BARRELS, AND OTHER VESSELS USED IN TRANSPORTING AND STORING GUNPOWDER, AND FOR OTHER USES
Year: 1880

page_text: LETTERS PATENT to Charles Marcus Westfield, of 102, Evering Road, Stoke
Newington, in the County of Middlesex, Gentleman, for an Invention of
"IMPROVEMENTS IN THE METHOD OF STOPPERING OR CLOSING FLASKS,
CANISTERS, BARRELS, AND OTHER VESSELS USED IN TRANSPORTING AND
STORING GUNPOWDER, AND FOR OTHER USES."
(Void by reason of the Patentee having neglected to file a Specification in
pursuance of the conditions of the Letters Patent.)
PROVISIONAL SPECIFICATION left by the said Charles Marcus Westfield
at the Office of the Commissioners of Patents on the 12th October 1880.
CHARLES MARCUS WESTFIELD, of 102, Evering Road, Stoke Newington, in
the County of Middlesex, Gentleman. "IMPROVEMENTS IN THE METHOD OF
STOPPERING AND CLOSING FLASKS, CANISTERS, BARRELS, AND OTHER VESSELS
USED IN TRANSPORTING AND STORING GUNPOWDER AND FOR OTHER USES."
My Invention consists in forming a neck and cover or stopper by pressure out
of brass, tin, or other suitable metal, the neck being made of such form as to
admit of its being applied and fixed to the flask or other vessel by pressure only
without soldering, and the cover or stopper is fastened into the neck by screwing
or turning.
The neck is cylindrical and open at each end, and has formed on its outer or
its inner surface a screw thread and also a flange or projecting ring with a shoulder
adapted to fit on to the neck of the flask or vessel, and to be closed over the
top of such last mentioned neck by meaus of pressure, and thereby become firmly
united to such flask or vessel. The cover or stopper is formed with either an
internal or external screw thread corresponding with that on the said first mentioned
neck, and when screwed on to the neck forms an effectual stopper for the flask or
vessel.
The neck is also intended to be formed with a flange or ring projecting at right
angles from its outer surface, and adapted to fit on one side of a plate or other flat

page_text: surface, the portion of the neck which protrudes through the aperture made to
receive it being turned back on the other side of the said plate, and united thereto
by pressure after the manner of an eyelet.
This plan can be adapted to various kinds of vessels, and is especially suited for
use in gunpowder kegs or barrels in which the head can be pierced and the neck or
bung inserted, and when once made up the kegs or barrels will not require to be
unheaded, provided the neck or bung be made sufficiently large to enable the
ordinary bag to pass through it, or the keg or barrel may be made sufficiently
strong to obviate the necessity for an inner bag. By placing a thin disc of cork
or leather or india rubber band or washer within the cover or stopper, the fastening
can be made air and water tight.
The screw thread formed on the outer or inner surface of the cover or stopper
may have the continuity of its spiral line broken or interrupted in order to
simplify the fastening down of the cover or stopper by admitting of its being
applied to the neck by being passed down the same for a certain distance and then
turned.
The articles or vessels to which the above described necks or covers and stoppers
are to be applied, are flasks of metal commonly made with "tin plates," also
canisters made of similar material or papier maché, also barrels made of oak or
other wood, also boxes made of wood, cardboard, or metal, also any vessels used for
the conveyance or storage of granular or fluid substances liable to decomposition
from atmospheric influences.