IMPROVEMENTS IN RECEPTACLES OR BOXES FOR TRANSPORTING AND PRESERVING SUBSTANCES
Year: 1884

page_text: PROVISIONAL SPECIFICATION.
I WALTER ALFRED BARLOW of 6 St Paul's Churchyard in the city of London
Patent Agent and Engineer do hereby declare the nature of the said invention for
"IMPROVEMENTS IN RECEPTACLES OR BOXES FOR TRANSPORTING AND PRESERVING
SUBSTANCES a communication to me from abroad by Eugen Ritter of Ehrenfeldt
near Cologne in the Empire of Germany, Manufacturer; to be as follows:-
"
This invention relates to certain improvements in receptacles or boxes for
transporting and preserving substances.
In carrying out this invention there is employed a vessel of circular shape
encased in a metal jacket and in the opening or mouth of the vessel is soldered or
otherwise fixed a metal ring having around its lower side an internal flange
projection or seating onto which the cover of the vessel, which is provided with an
india rubber packing will bear when the vessel is closed down.
The top of this metal ring is also formed up with an internal flange or projection
having openings therein to allow of the insertion of a second or receiving ring on
the outer edge of which are lugs or projections corresponding in shape and size
with the said openings in the upper flange of the first mentioned metal ring so that
the lugs or projections on such second ring may pass through the aforesaid openings
and be free to turn beneath the top flange of the first ring until they come to stops
on the underside thereof provided for the purpose.
This second or receiving ring
is further provided on the inner face or edge with a screw thread for the reception
of a third or pressure ring similarly screw threaded on its outer edge so as to engage
with the screw thread on the inner face of the receiving ring. This third or pressure
ring is formed with cross pieces or arms carrying a central boss or nave fitting upon
a stud or spindle provided in the centre of the cover of the vessel upon which stud
or spindle the said pressure ring is free to turn and is kept in position by means of
a jam nut.
Thus when it is desired to close the vessel, the cover with the pressure ring and
receiving ring will be placed in the mouth of the vessel, the lugs or projections of
the receiving ring passing down through the openings in the flange of the outer

page_text: metal ring soldered to the vessel, the receiving ring will then be turned around
until the projections strike against the stops when the pressure ring will be screwed
down thus pressing the cover with its india rubber packing tightly against the
internal flange seating or projection on the bottom of the metal ring soldered to the
vessel and thereby effectually and hermetically closing the same.
The connection of the second or receiving ring with the ring soldered to the
opening of the vessel may be effected by lugs or projections on the receiving ring
engaging with a flange or with slots in the ring soldered to the vessel.
The improvement consists in that the pressure ring does not engage directly with
the thread of the opening ring but with that of the receiving ring specially pro-
vided for it. This receiving ring remains permanently connected with the pressure
ring by its screw thread so that the screw threads are always covered up and
cannot become damaged whilst the pressure ring is itself considerably strengthened.
Dalhin 1nt ..1.. 1001

page_text: "
COMPLETE SPECIFICATION.
'I WALTER ALFRED BARLOW of 6 St Paul's Churchyard in the city of London;
Patent Agent and Engineer, do hereby declare the nature of the invention for
"IMPROVEMENTS IN RECEPTACLES OR BOXES FOR TRANSPORTING AND PRESERVING
SUBSTANCES a communication to me from abroad by Eugen Ritter of Ehrenfeld
near Cologne, Germany, Manufacturer 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 certain improvements in receptacles or boxes for
transporting and preserving substances, the object being to provide a means of
effectually and hermetically closing such receptacles or boxes by a lid or cover
which may be readily removed.
The invention is illustrated by the accompanying sheet of drawings wherein
Figs 1 and 2 are respectively a transverse section and plan view of one of these
improved receptacles with its lid or cover in position when closed down.
Figs 3 and 4 are like views of the same with the lid or cover removed, and
Figs 5 6, 7 and 8 are similar views showing a modification of the Invention.
In carrying out this Invention the receptacle or vessel is encased in a metal
jacket m and in the opening or mouth of the vessel is soldered or otherwise fixed a
metal ring having around its lower side an internal flange projection or seating 11
upon which the lid or cover 6 which is provided with india-rubber packing a will
bear when the vessel is closed down.
.
In the form of construction shown in Figs 1, 2, 3 and 4 the top of the metal
ring is also formed up with an internal flange or projection n having openings t
wherein to allow of the insertion of a second or receiving ring kc, on the outer edge
of which are lugs or projectious 8 corresponding in shape and size with the said
openings t in the upper flange n of the first mentioned metal ring so that the
said lugs or projections 8 on such second ring k may pass through the aforesaid
openings t and be free to turn beneath the top flange n of the ring & until they
come to the stops 2, formed on the underside thereof.
This second or receiving ring k is further provided on its inner surface, or edge
with a screw thread for the reception of a third or pressure ring c which is similarly
screw threaded on its outer edge so as to engage with the screw thread on the inner
face of the receiving ring k.
The pressure ring c is formed with arms or cross pieces d carrying a central boss
or nave g fitting upon a stud or spindle f provided in the centre of the lid or
cover of the vessel, upon which stud or spindle f the said pressure ring c is free
to turn, and is kept in position by a jam nut e.
To close the vessel down the entire closing device consisting of the cover b with
the pressure ring c and receiving ring k will be placed in the mouth of the vessel,
the lugs or projections 8 of the receiving ring k passing down through the openings t,
in the flange of the outer metal ring l, affixed to the vessel, the receiving ring k will
then be turned around until the projections 8, come in contact with the stops

page_text: when the pressure ring c will by means of a screw key fitting into the arms & be
screwed down so pressing the cover b with its india rubber packing a tightly
against the internal flanged seating on the bottom of the metal ring / affixed to
the vessel and thereby effectually and hermetically closing the same.
The opening of the receptacle is effected by a reverse operation.
In the modification shown in Figs 5, 6, 7 and 8 the ring secured to the mouth
of the vessel is constructed without the internal, flange n upon its top edge, and
bayonet joint slots y are formed in the circumference of the ring itself for the
reception of the lugs or projections S upon the receiving ring k in manner similar
to that before described.
By the improved construction of closing device as herein described the pressure
ring c does not engage directly with the thread of the opening ring / but with that
of the receiving ring specially provided for it and said receiving ring k remains
permanetly connected with the pressure ring c by its screw thread, so that the
screw threads are always covered up and cannot become damaged whilst the
'pressure ring c is itself considerably strengthened.
:
Having now particularly described and ascertained the nature of the said
Invention, and in what manner the same is to be performed, I declare that what
I claim is
The ring k having an interior thread between the pressing ring c and the ring ?
for opening the vessel, the ring k being connected in the manner shown in Figs 14
or in Fig 5 and 8 of the drawings and as herein described.