proved Means of Closing Cylindrical Bottles, Jars, Canisters, and the like.
Year: 1892

page_text: Date of Application, 5th Dec., 1892
Complete Specification Left, 5th Sept., 1893-Accepted, 7th Oct., 1893
PROVISIONAL DEVIIVATION
Improved Means of Closing Cylindrical Bottles, Jars, Canisters, and
the like.
We, WILLIAM JAMES COWAN, of 77, Trinity Road, Wood Green, Agent, and
CHARLES JOHN SAUNDERS, of 48, and 50, Kingsland Road, Tin Box Manufac-
turer, both in the County of Middlesex, do hereby declare the nature of the said
invention to be as follows:-
This invention relates to improved means of closing the mouths or openings of
cylindrical bottles, jars, canisters or other like receptacles intended to contain solid,
pulverulent, liquid or other matters.
In accordance with the invention, the means of closing the bottle, jar, canister or
other receptacle (hereinafter intended to be included under the general designation
"receptacle,") consists of a cylindrically flanged cover which is adapted to co-act
with the mouth or open end of the receptacle in such a manner as to engage there-
with and close the same (hermetically if required) upon being simply pressed home
in the direction of the axis of the receptacle, and as to become disengaged
therefrom upon being turned with a circular or with a helical movement about the
axis of the receptacle, so that it can be removed by simply withdrawing it away
from the receptacle.
To this end, the receptacle is made with a slightly projecting external cylindrical
rim, or with an equivalent external recess adjacent to its top edge, so as to offer a
projecting or recessed part adapted to engage with the holding parts of the cover
when the latter is pressed home as aforesaid.
The receptacle is also formed with projecting or cam-like parts which gradually
increase from the external diameter of the receptacle to that of its projecting rim, or
from that of its peripheral recess to that of the receptacle, and are adapted to
engage with said holding parts of the cover when the latter is turned with a circular
movement with relation to the receptacle so as to cause the said holding parts of
the cover to be distended to the full diameter of the said rim in the one case, or to
that of the receptacle in the other case, so as to permit of the cover being removed
by simply withdrawing it from the receptacle.
When the receptacle is made with a rim projecting beyond the outer diameter of
its body part, there may be made in the lower part of the rim a helical pathway
gradually increasing in diameter from that of the receptacle to that of the rim for
the purpose aforesaid, and in such event a helical twist is given to the cover in
disengaging it from the receptacle.
The flange of the cover is made with holding parts (preferably equidistant)
curving slightly inwards and having rounded or slightly inclined edges, the same
being adapted to slightly distend when the cover being pressed home as afore-
said, and upon reaching the edge of the projecting rim or the circumferential
recess to spring into engagement therewith and efficiently hold therein until
disengaged by the aforesaid circular or helical turning movement of the cover.
The receptacle and cover may be made of any materials respectively suitable.
The holding parts of the cover and releasing parts of the receptacle are prefer-
ably made equal in number and respectively equidistant.
If it be required to close the receptacle hermetically or to prevent the contents
from coming into contact with the cover, suitable packing discs fitting within the
cover and adapted to rest on the rim of the receptacle are firmly compressed upon
the latter when the cover is pressed home as aforesaid.

page_text: By the aforesaid improvements, we dispense with all loose attachments and with
any clipping devices not forming integral parts of the receptacle or cover, and form
the receptacle and cover so as to co-act as aforesaid.
Dated this 2nd day of December 1892.
DAY, DAVIES & HUNT,
321, High Holborn, London, W.C., Agents for the Applicants.
COMPLETE SPECIFICATION.
Improved Means of Closing Cylindrical Bottles, Jars, Canisters, and
the like.
We, WILLIAM JAMES COWAN, of 77, Trinity Road, Wood Green, Agent, and
CHARLES JOHN SAUNDERS, of 48 and 50, Kingsland Road, Tin Box Manufac-
turer, both in the County of Middlesex, do hereby declare the nature of the said
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 relates to improved means of closing the mouths or openings of
cylindrical bottles, jars, canisters or other like receptacles intended to contain solid,
pulverulent, liquid or other matters.
In accordance with the invention, the means of closing the bottle, jar, canister or
other receptacle (hereinafter intended to be included under the general designation
"receptacle") consists of a cylindrically-flanged cover which is adapted to co-act
with the mouth or open end of the receptacle in such a manner as to engage there-
with and close the same (hermetically, if required,) upon being simply pressed home
in the direction of the axis of the receptacle, without any circular or helical
movement about such axis, and as to become disengaged therefrom upon being
turned with a circular or with a helical movement about the axis of the receptacle,
so that it can be removed by simply withdrawing it away from the receptacle.
On the accompanying drawings,
Fig. 1, represents, in sectional elevation, a metal canister and cover respectively
adapted according to the present improvements.
Fig. 2, represents a plan view, half in section on the line a, b, Fig. 1, of the
canister.
Fig. 3, represents, in sectional elevation, part of a glass jar and cover similarly
adapted.
Fig. 4, represents a part sectional plan view on the line c, d, Fig. 3.
Fig. 5, represents a part sectional plan view on the line e, f, Fig. 3.
Fig. 6, represents a part sectional plan view on the line g, h, Fig. 3.
Fig. 7, represents, in elevation, part of a bottle neck, showing the cover in
sectional elevation, not pressed home.
Fig. 8, represents our improved cover partly in elevation and partly in sectional
elevation, and
Fig. 9, represents an under plan view of our improved cover.
To the aforesaid end, the receptacle 10, is made with a slightly projecting
external cylindrical rim 11, or with an equivalent external recess adjacent to its
top edge, so as to offer a projecting or recessed part adapted to engage with the
holding parts 12, of the cover 13, when the latter is pressed home, as aforesaid.
The receptacle is also formed with one or more projecting or cam-like parts 14,
(ride Figs. 1, 2, 3, 5, and 6) which gradually increase from the external diameter of
the receptacle 10, to that of its projecting rim 11, (vide Figs. 2, 5, and 6) or from
that of its peripheral recess to that of the receptacle. The cam-like parts 14, are
adapted to engage with said holding parts 12, of the cover, upon the latter being
turned with a circular movement with relation to the receptacle, so as to cause the

page_text: said holding parts 12, of the cover to be distended (cide the left hand half of Fig. 1,
and Fig. 6,) to the full diameter of the said rim in the one case, or to that of the
receptacle in the other case, so as to permit of the cover being removed by simply
withdrawing it from the receptacle.
When the receptacle is made with a rim projecting beyond the outer diameter of
its body part, there may be made in the substance of the lower part of the rim a
helical pathway 14* gradually increasing in diameter from that of the adjacent part
of the receptacle to that of the rim, for the purpose aforesaid, and in such event a
helical twist is given to the cover in disengaging it from the receptacle.
The flange of the cover is made with projecting holding parts 12, (preferably
equidistant) the holding ends 12" of which curve slightly inwards and have rounded
or slightly inclined edges 12b, the parts 12, being adapted to slightly distend when
the cover is being pressed home, as aforesaid, and upon reaching the circumferential
recess to spring back into engagement therewith and efficiently hold thereto or
therein until disengaged by the aforesaid circular or helical turning movement of
the cover.
The receptacle may be made of any suitable material, the cover being preferably
made of tinned steel plate or other suitable resilient material.
The holding parts of the cover and releasing parts of the receptacle are preferably
made equal in number and respectively equidistant.
If it be required to close the receptacle hermetically, or to prevent the contents
from coming into contact with the cover, suitable packing discs 15, (vide Fig. 1,)
fitting within the cover and adapted to rest on the rim of the receptacle may be
used so as to be firmly compressed upon the latter when the cover is pressed home
as aforesaid.
By the aforesaid improvements, we dispense with all loose attachments and with
any clipping devices not forming integral parts of the receptacle or cover, and form
the receptacle and cover so as to co-act as aforesaid.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, we declare that we are
aware that it has been proposed to make various arrangements of bayonet-joint or
analogous stoppering devices in which helical projections or helically-disposed
grooves or recesses are cast or formed around the bottle-neck or mouth end of the
receptacle se as to be adapted to be engaged by a cover fitted with projections
adapted to enter the open ends of said helical recesses and to engage therewith or
with said helical projections on being helically turned, and in which it is required
that the cover should be turned about the axis of the receptacle (or vice-versa) when
being applied thereto so as to close the month or opening thereof, and we desire it
to be understood that we lay no claim to any such arrangement or to any com-
bination of parts in which it is required that the cover and receptacle should so
co-operate when the cover is being applied to the receptacle; but what we claim
15:-
1. As means of closing the mouths or openings of cylindrical bottles, jars,
canisters and the like, a cylindrically flanged cover adapted to co-act with the
mouth or open end of the receptacle in the manner hereinbefore described, so as to
engage therewith and close the same upon being simply pressed home in the
direction of the axis of the receptacle, and as to become disengaged therefrom upon
being turned with a circular or with a helical movement about the axis of the
receptacle so that it can be removed by simply withdrawing it away from the
receptacle.
2. In combination, a receptacle formed with an external cylindrical rim or recess
adjacent to its mouth or opening and with projecting or cam-like parts of gradually
increasing diameter as aforesaid, and a flanged cover formed with projecting
inwardly curved resilient holding parts, when adapted to co-operate in inclosuring.
the receptacle upon the cover being simply pressed home in the direction of the

page_text: axis of the receptacle in manner aforesaid, and to co-operate in unclosuring the
receptacle upon the cover being turned about said axis and withdrawn as aforesaid.
Dated this 5th day of September 1893.
DAY, DAVIES, & HUNT,
321, High Holborn, London, W.C., Agents for the Applicants.