Improvements in and connected with Jars, Bottles, or other Vessels for the Preservation of Fruit, Vegetables, Fish, and other Substances
Year: 1897

page_text: Date of Application, 18th Jan.,
1897
Complete Specification Left, 18th Oct., 1897-Accepted, 18th Dec., 1897
PROVISIONAL SPECIFICATION.
"Improvements in and connected with Jars, Bottles, or other Vessels
for the Preservation of Fruit, Vegetables, Fish, and other
Substances."
We, WILLIAM ROBERTSON, Confectioner and Preserved Provision Manufacturer,
and JAMES ROBERTSON, Engineer, both of 211, Barking Road, Canning Town, in
the County of London, do hereby declare the nature of this invention to be as
follows:-
Our invention relates to jars bottles or other vessels for the preservation of fruit,
jams, jellies, vegetables, fish, meat and other perishable substances and to that
class of such vessel which is adapted to be closed by, a metal cap or cover and a
joint ring and wherein the said cap or cover is held on by atmospheric pressure.
In vessels of this kind as heretofore used there has been considerable difficulty
in obtaining a tight closing owing to the facts that frequently the
covers would not adapt themselves to the inequalities of the bottle mouths and that
the joint rings owing to their resiliency constantly tended when compressed to
return to their normal position and lift the lids.
The object of our invention is to overcome these difficulties and to this end we
employ covers of very thin material which will readily adapt themselves to inequali-
ties of the bottles and we employ joint rings with flat surfaces which lie against
the outside of the bottle mouth and the inside of the cap or cover so that the
pressure applied to the caps when closing the bottles tends to compress the rings in
a horizontal rather than in a vertical direction. In order to insure that the joint
ring when compressed shall not expand in a vertical direction we form around the
outside of the mouth of the vessel a series of angular ribs having the appearance
of ratchet teeth, which ribs whilst readily permitting of the downward movement
of the ring under compression will not permit of its upward movement.
In using bottles and covers constructed according to our invention we find it
advantageous to maintain considerable pressure upon the cover during the usual
cooking or cooling operation.
1011
JT1807
66
CUMI LEIE
Improvements in and connected with Jars, Bottles, or other Vessels
for the Preservation of Fruit, Vegetables, Fish, and other
Substances."
We, WILLIAM ROBERTSON, Confectioner and Preserved Provision Manufacturer,
and JAMES ROBERTSON, Engineer, both of 211, Barking Road, Canning Town, in

page_text: the county of London, 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:―
Our invention relates to jars, bottles or other vessels for the preservation of
fruit, jams, jellies, vegetables, fish, meat and other perishable substances and to
that class of such vessel which is adapted to be closed by a metal cap or cover and
a joint ring and wherein the said cap or cover is held on by atmospheric pressure.
In vessels of this kind as heretofore used there has been considerable difficulty
in obtaining a tight closing owing to the facts that frequently the covers would
not adapt themselves to the inequalities of the bottle mouths and that the joint
rings owing to their resiliency constantly tended when compressed to- return to
their normal position and lift the lids.
The object of our invention is to overcome these difficulties and to this end we
employ covers of very thin material which will readily adapt themselves to inequali-
ties of the bottles and we employ joint rings with flat surfaces which lie against
the outside of the bottle mouth and the inside of the cap or cover so that the
pressure applied to the caps when closing the bottles tends to compress the rings in
a horizontal rather than in a vertical direction. In order to insure that the joint
ring when compressed shall not expand in a vertical direction we sometimes form.
around the outside of the mouth of the vessel a series of angular ribs having the
appearance of ratchet teeth, which ribs whilst readily permitting of the downward
movement of the ring under compression will not permit of its upward movement.
In using bottles and covers constructed according to our invention we find it
advantageous to maintain considerable pressure upon the cover during the usual
cooking or cooling operation.
To enable our invention to be fully understood we will describe the same by
reference to the accompanying drawing, in which :-
-
Figure 1 is a vertical section of the upper part of a jar and cover arranged in
accordance with our invention the said cover being in the position which it occupies
before being pressed down to cause the tight closing of the said jar:
Figure 2 is a view similar to figure 1 but shewing the cover pressed down to
hermetically seal the jar;
Figure 3 is an elevation of the jar and cover having applied to it the means
which we advantageously employ for applying pressure to the cover whilst cooking;
and,
Figure 4 is a view at right angles to figure 3.
a is the bottle neck the surface of which around the outside of the mouth of
the bottle is made of a conical shape and b is the metal stopper which is adapted
to fit over the bottle mouth. c is the joint ring which as shown is of rectangular
section so that the surfaces in contact with the cover and bottle are parallel the
said ring being of such a diameter that in order to place it around the mouth of
the bottle it will be necessary to slightly stretch it.
d is a clip which at its ends engages with a rib on the neck of the bottle and
extends across the lid in such a manner that a wedge e can be passed between the
said clip and the cover in order to hold the same against the packing ring in a
well known manner.
As shewn in the drawing the conical surface of the bottle mouth is represented
as provided with a series of circumferential grooves, it is to be understood, however,
that such grooves are not necessary but that the said conical surface can be left
plain if desired.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that what
we claim is:-
1. The combination with a bottle, jar or other vessel having a conical surface
adjacent to the mouth, of a thin metal cap adapted to fit over the said mouth and :

page_text: a packing ring having the surfaces in contact with the bottle and cover parallel,
substantially as described.
2. Improvements in and connected with the closing of bottles, jars or other
vessels, substantially as hereinbefore described and illustrated in the accompanying
drawing.
Dated the 18th day of October 1897.
G. F. REDFERN & Co.
4, South Street, Finsbury, London Agents for the Applicants.