Improvements in Jar Closures.
Year: 1899

page_text: Date of Application, 21st Feb., 1899-Accepted, 25th Mar., 1899
COMPLETE SPECIFICATION.
Improvements in Jar Closures.
I, JOHN HARTLEN FOWLER, Manufacturer, of Huntingdon, Huntingdon County,
Pennsylvania, United States of America, 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 jar closures, and consists in the peculiar construction,.
novel combination and adaptation of parts hereinafter described and particularly
pointed out in the claims appended.
In the annexed drawings:-
Fig. 1 is a perspective view of a jar provided with my improved closure.
Fig. 2 is an enlarged, vertical section of the upper portion of the same.
Fig. 3 is an enlarged section illustrating a portion of the cover-securing bow
and the fastening device thereon.
Fig. 4 is a detail section taken in the plane indicated by the line 4-1 of Fig. 1.
Referring by letter to the said drawings:
A is the body of a glass jar embracing my invention; the same being provided
adjacent to its upper end and at diametrically opposite points with exterior lugs
or projections a a¹, and having a slightly flared mouth a, and a circular groove b
in its upper end, as shown. The lug a of the body has a horizontal socket c which
is diametrically disposed and designed to receive an inwardly directed end d of a
cover-clamping bow B, while the lug a¹ has a similarly disposed socket e designed
to receive the other end d of the bow, and an inclined groove f which is not quite as
deep as the socket and extends from the same downwardly to the side of the lug
as shown. By reason of this construction when the ends of the bow are seated
in the sockets cc of the body, the bow is free to swing to and fro but is securely
held against casual disconnection. When, however, it is desired to disconnect
the bow from the jar body, the same may be readily accomplished by simply
springing the end of the bow, which is slightly resilient, out of the socket e and
moving it down through the groove f and out of engagement with the lug a'
when the other end of the bow may be readily removed from the socket c.
bow may be as readily secured to the jar body, and hence it follows that when a
bow or any of its appurtenances are worn or otherwise impaired it may be readily
removed and replaced by a new bow, and in this way the usefulness of the body
may be indefinitely prolonged.
The
C is the cover of the jar which is formed in one piece of glass or other suit-
able material. This cover is preferably equipped with a central, depending por-
tion 9 which has for its purpose to bear upon the fruit in the jar and hold the
same below the juice or liquid as is desirable. The cover is also provided with a
slightly tapered, depending portion designed to be forced in and tightly occupy
the flared mouth of the body, and a shoulder i designed to meet the upper end
of the body. In the said shoulder i is formed a circular groovej of a diameter
corresponding to that of the groove b; and both of these grooves are of angular
form in cross section in order to enable them to receive a rubber gasket or pack-
ing ring D of circular form in cross section, as best shown in Fig. 2.

page_text: In virtue of the portion of the cover C resting in and fully occupying the
mouth of the jar body, and the gasket of angular form in cross section resting in
the coincident grooves in the shoulder of the cover and the end of the jar body,
it will be seen that when the cover is clamped upon the jar body, the jar will
be hermetically sealed and admission of air into the same will be effectually pre-
vented. It will also be seen that the gasket D will cushion the cover C when
the same is forced down on the jar body and will thereby prevent the portion h
of the cover from forcing out or breaking the upper portion of the body, and that
the said cover portion h being adapted to be' tightly forced in the mouth of the
body will effectually prevent the contents of the jar from coming into contact
with and being deteriorated by the rubber gasket which is a highly important
advantage.
On its upper side, the cover C is provided with the diametrically disposed
raised portion E. This portion E is preferably braced by raised portions 7 dis-
posed at right angles to it, and has a central portion m which is slightly depressed
and inclined edges n as illustrated.
The cover securing bow B is provided at its middle with a straight, horizontal
portion p, and on this straight portion is loosely mounted a metallic barrel q
which is surrounded by a sleeve r of rubber. The barrel q and rubber sleeve
form a fastening device which is designed when placed in the depression m of
the-cover-to hold the-bow B-against. casual release. While this is so it will be
seen that when lateral pressure is applied to the bow the rubber sleeve will
yield and permit of the device F being moved out of the depression m.
this done the bow may be disconnected-from-the-body A-as before described,
after which the cover C may be removed.
With
By reason of the bow being adapted to be disconnected from the jar body, it
need not be sufficiently large to swing down to the side of said body.
The rubber sleeve of the device Falso yields and enables the device to enter
the depression m in fastening the cover, and consequently it will be seen that
while there is no danger of the cover being casually unfastened, it may be
fastened and unfastened when desirable, quite as readily as the ordinary jar cover.
The metallic barrel q of the fastening device F prevents the bow from cutting
and wearing the rubber sleeve and also serves to enable the said sleeve to freely
turn on the bow which assists the fastener in entering and leaving the depres-
sion m of the cover when pressure is applied to the bow.
With all of its advantages as pointed out in the foregoing, it will be seen that
my improved jar closure is very simple, and a jar embracing the same may be
produced and sold with profit for as small a price as the ordinary jar.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is:
-
1 In a jar closure, the combination of a jar body having the flared mouth a
and also having the circular groove b of angular form in cross section in its upper
end, the one-piece cover having the central, depending portion y, the tapered
portion adapted to be formed in and tightly occupy the flared mouth of the
body, and the shoulder provided with a circular groove of angular form in
cross section, the gasket or packing ring of angular form in cross section inter-
posed between the end of the body and the shoulder of the cover and seated in the
grooves thereof, and suitable means for clamping the cover on the body, substan-
tially as specified.
2 In a jar closure, the combination of a body having the lugs a a¹ at dia-
metrically opposite points and also having a socket c in one lug, and a socket e
in the other lug and an inclined groove f extending downwardly from the said
socket to the side of the lug, a cover having a diametrically disposed raised por-
tion E provided with a central depression m and inclined edges n, the removable

page_text: clamping bow having the inwardly turned ends seated in the sockets ce of the
body and also having the straight portion at its middle, and the fastening device
comprising the metallic barrel loosely mounted on the straight portion of the
bow and the rubber sleeve surrounding said barrel, as and for the purpose set
forth.
Tel: 01
J. 1900
WHEATLEY & MACKENZIE,
40, Chancery Lane, London, W.C., Agents.