Improvements in Lever Bottle Stoppers.
Year: 1896

page_text: Date of Application, 2nd Apr., 1896-Accepted, 2nd May, 1896
COMPLETE SPECIFICATION.
Improvements in Lever Bottle Stoppers.
1, CHARLES HOUGHTON BROWN, of 13, Victoria Street, Westminster, in the
County of London, Chartered Accountant, 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 :-
My invention relates to lever stoppers for bottles intended to contain pickles or
other substances preserved in vinegar, acetic or other corrosive acids, and has for
its object to so construct the stopper as to present only incorrodible material to
the action of the acid, whereby the stopper cannot deteriorate nor taint or flavour
the contents of the bottle.
Hitherto the lower surface of such stoppers has always been made of or covered
with tin or other metallic substance which suffers sooner or later from the
corrosive action of the acid and is then detrimental to the contents.
According to my invention I use for the lower portion of the stopper and all
such parts thereof as may by any possibility be affected by the acid an incor-
rodible material or composition. Preferably I employ porcelain made up in the
manner technically known as "dust wise," that is to say from powdered clay or
other suitable pulverised material which when kneaded with water can be readily
moulded to any required form and then burnt hard; but I do not confine myself
to such porcelain as I may use other incorrodible tasteless substances such as glass,.
ebonite, vulcanite, celluloid, ivory, papier maché, or preparations of the same, or
other incorrodible substances adapted to the purpose.
In carrying out my invention I form and arrange the parts of the stopper in
the manner I will now describe in reference to the accompanying drawing which
represents in cross section the well-known lever stopper for pickle bottles showing
three arrangements of my improvement.
The lower part a of the stopper is formed of a porcelain disc of suitable
thickness and of two diameters, the lower part has the larger diameter and fits
well into the mouth of the bottle, and the upper part having the lesser diameter
has a circumferential rebate or inwardly inclined rounded shoulder b. Centrally
in the upper side is formed a recess c or equivalent hole to receive the flange or
screw of the lever hook l. When a flange is inserted it is secured either as in
Fig. 1 by a small recessed iron plate d held firmly down by an outer covering cap e
of tin clipped and pressed firmly into the rebate b; or the flange may be secured
as in Fig. 2 by a sheet iron cap d, secured circumferentially in the rebate b.
The above represents the arrangement of the lower porcelain portion and the
lever hook, and the rest of the stopper may be either arranged in the usual
manner as shown in Figs. 1 and 2, being the outer cap slotted at f for the
reception of the lever and made of tiu in the usual manner, or for the cap I may
use porcelain or material similar to that used for the lower portion a formed and
arranged as shown in Fig. 3.
represents the usual rubber band sprung around the periphery of the stopper
and confined and adapted to be compressed between the flange f' of the outer
capf and the flange a of the lower part a.
The action of the lever serves to draw the two portions together and compress
the rubber ring so as to make a tight joint, and to liberate the same when required
in the usual manner

page_text: Having now particularly described and ascertained the nature of this inven
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. In a lever stopper for bottles such as above referred to the use for the lower
portion of a disc of porcelain or other incorrodible and tasteless material or
composition constructed as specified, in combination with-a-metallie-es-a-porcelain
upper portion, the two portions being arranged and adapted to operate sub-
stantially in the manner and for the purpose set forth.
2. The improved lever stopper for bottles containing acids having a porcelain
or equivalent lower portion as described and illustrated in the drawings.
Dared this 200 doy of A pm) TRUK
VALEA na
200 doy ot ABTRUK
For the Applicant,
J. C. CHAPMAN,
70, Chancery Lane, London, W.C., Chartered Patent Agent.