Improved Means of Hermetically Closing Wide Mouthed Bottles, Jars, Cans, and other Vessels.
Year: 1887

page_text: Date of Application, 4th May, 1887
Complete Left, 1st Feb., 1888
Complete Accepted, 16th Mar., 1888
PROVISIONAL SPECIFICATION.
Improved Means of Hermetically Closing Wide Mouthed Bottles,
Jars, Cans, and other Vessels.
I, ALEXANDER MELVILLE CLARK, of the firm of A. M. and Wm. Clark, of
53, Chancery Lane, in the County of Middlesex, Fellow of the Institute of Patent
Agents, do hereby declare the nature of this Invention a communication to me from
abroad by La Société Vilmorin-Andrieux et Compagnie, of 4 Quai de la Mégisserie,
Paris, France, Seedsmen to be as follows:-
This Invention relates to an improved method of hermetically closing wide mouthed
bottles, jars, cans, and similar vessels; and it consists essentially in the combination
with a screw threaded mouth or neck of a similarly threaded cap or cover screwing
thereon and flared at its lower edge to receive and compress a luting or packing placed
around the base of the mouth or neck of the vessel to make an air-tight joint. The
screw threaded mouth or neck may be provided with a channel to contain the luting or
packing which may be putty or caoutchouc or it may be tow or cotton steeped in tar
or other matters capable of being compressed between the mouth or neck of the con-
tainer and the cap in screwing on the latter, or this annular recess may be dispensed
with and the packing be simply enclosed between the flared edge of the cap or cover
and the mouth or neck of the vessel.
Reference is to be had to the accompanying drawing forming part of this specification
which shews several examples of the Invention. Figure 1 is a sectional elevation of
the improved means of closure, as applied to a metal can, provided with an annular
channel around the base of the mouth or neck. Figure 2 shews the same arrangement
as applied to a vessel made of materials other than metal. Figure 3 shews the same
means of closure, without the groove or channel for the luting.
a is a screw-threaded cap or cover, of some suitable metal, provided at its base with
a flaring or coned rim b. c is the mouth or neck of the vessel formed with a corre-
sponding screw-thread upon which the cap or cover a is screwed, after first placing a
luting d either in the groove e, Figures 1 and 2, or simply around the base of the mouth
or neck, as in figure 3. In screwing on the cap, the luting, which is in a soft condition,

page_text: becomes compressed in the groove and also between the screw threads next the lower
part of the cap, whereby a perfectly air-tight joint is obtained.
The screw thread may be formed in any suitable way, or it may be entirely dispensed
with, and the flared rim of the cap be connected to the vessel by other means, such as
by inclined lugs or segments of a screw, stirrups or otherwise. The form of the rim b
may also bo varied, for instance, it may be concave, convex, or undulated and it may
be at a greater or less angle to the body of the cap.
A MELVILLE CLARK.
By A. M. & Wm. Clark,
53, Chancery Lane, London,
Patent Agents.

page_text: COMPLETE SPECIFICATION.
Improved Means of Hermetically Closing Wide Mouthed Bottles,
Jars, Cans, and other Vessels.
I, ALEXANDER MELVILLE CLARK, of the firm of A. M. and Wm. Clark, of
53, Chancery Lane in the County of Middlerex, Fellow of the Institute of Patent
Agents, do hereby declare the nature of this invention (a communication to me from
abroad by La Société Vilmorin-Andrieux et Compagnie, of 4 Quai de la Mégissiere,
Paris, France, Seedsmen) and in what manner the same is to be performed, to be
particularly described and ascertained in and by the following statement :-
This Invention relates to an improved method of hermetically closing wide mouthed
bottles, jars, cans, and similar vessels; and it consists essentially in the combination.
with a screw-threaded mouth or neck of a similarly threaded cap or cover screwing
thereon and flared at its lower edge to receive and compress a luting or packing placed
around the base of the mouth or neck of the vessel to make an air-tight joint. The
screw-threaded mouth or neck may be provided with a channel to contain the luting or
packing which may be putty or caoutchouc, or may consist of tow or cotton steeped in
tar or other matters capable of being compressed between the mouth or neck of the
container and the cap in screwing on the latter, or this annular recess may be dis-
pensed with and the packing be simply enclosed between the flared edge of the cap or
cover and the mouth or neck of the vessel.
Reference is to be had to the drawing left with the Provisional Specification which
shews several examples of the invention. Figure 1 is a sectional elevation of the
improved means of closure, as applied to a metal can, provided with an annular
channel around the base of the mouth or neck. Figure 2 shews the same arrangement
as applied to a vessel made of materials other than metal. Figure 3 shews the same
means of closure without the groove or channel for the Inting. Similar letters of
reference represent like parts in all the figures.
a is a screw threaded cap or cover of some suitable metal, provided at its base with
a flaring or coned rim b. c is the mouth or neck of the vessel, formed with a corre-
sponding screw-thread upon which the cap or cover a is screwed, after first applying a
luting d, either in the groove e, figures 1 and 2, or simply around the base of the
mouth or neck, as in figure 3. In screwing on the cap, the luting which is in a soft
condition, becomes compressed in the groove and also at the commencement of the
screw-threads at the lower part of the cap, whereby a perfectly air-tight joint is
obtained.
The screw-thread may be formed in any suitable way or it may be entirely dispensed
with, and the flared rim of the cap be pressed against the vessel by other means, such
as by inclined lugs or segments of a screw, stirrups, or otherwise. The form of the
rim b may also be varied, for instance, it may be made concave, convex, or undulated,
instead of flat as shewn, and it may also be placed at any suitable angle to the body of
the can

page_text: Having now particularly described and ascertained the nature of the said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is;
The herein-described means of hermetically closing wide mouthed bottles, jars, cans,
and other containers, consisting essentially in the combination with a screw-threaded
mouth or neck e having a luting d contained in an annular channel or groove, or
placed around the base of the neck, of a similarly screw-threaded cap or cover a
screwing or otherwise secured thereon and flared at its lower edge b to receive and
compress the luting or packing around the base of the neck, substantially as
hereinbefore described and represented in the drawing.
Dated this lot dom of Wah 1000
A. MELVILLE CLARK.
By A. M. & Wm. Clark,
53, Chancery Lane, London,
Patent Agents.