IMPROVEMENTS IN CLOSING OR FASTENING SHEET METAL BOXES BY MEANS of SCREW FITTINGS
Year: 1884

page_text: I WALTER ALFRED BARLOW of 6 St Pauls Churchyard in the city of London
Patent Agent and Engineer do hereby declare the nature of the said invention
for IMPROVEMENTS IN CLOSING OR FASTENING SHEET METAL BOXES BY MEANS of
SCREW FITTINGS a communication to me from abroad by Eugen Ritter of Ehrenfeld
near Cologne in the Empire of Germany to be as follows:-
This invention relates to certain improvements in closing or fastening sheet
metal boxes by means of screw fittings and has for object to prevent air and
water from entering sheet metal vessels without soldering down the cover and so
as also to leave the said covers removablo.
The sides of the sheet metal vessel (or box or chest) are enclosed within &
wooden bottom and wooden sides (or frame). The upper part of the sheet metal
vessel is provided with a flange resting on the wooden sides. The cover of the
sheet metal vessel is provided with a rim which is fixed either to the cover or to
the sides. Around the rim is laid an india rubber ring which is pressed down by
the cover and the flange of the vessel.
A wooden lid or cover is laid over all and is held down by means of screws on
to the wooden box. The screws work in nuts screwed or let into the wooden sides.
These nuts are composed of metal cylinders inside of which is a screw-thread in
which the screws work with their thread. On the outside these cylinders are
provided with a thread for wood screws and furnished with an exterior groove.
As soon as the cylinders are screwed down in the wood by means of a screw-
driver a pin is driven in the exterior groove so that the nuts cannot work
themselves loose again. The thread of the nuts may likewise be made to taper off
towards the bottom end so as to make it easier to screw them in and so as to form
a stop, a conical or straight head may be provided to the upper part of the nuta.
Dated 27th March 100

page_text: I WALTER ALFRED BARLOW of 6 St Pauls Churchyard in the city of London
Patent Agent and Engineer do hereby declare the nature of the invention for
IMPROVEMENTS IN CLOSING OR FASTENING SHEET METAL BOXES BY MEANS OF
SCREW FITTINGS a communication to me from abroad by Eugen Ritter of Ebrenfeld
near Cologne Germany, 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 closing or fastening sheet metal
boxes by means of screw fittings and has for its object to prevent air and water
from entering sheet metal vessels without soldering down the cover and so as also
to leave the said covers removable.
In order that my invention may be more readily understood I have hereunto
annexed a sheet of drawings wherein Fig. 1 is a longitudinal section; Fig 2 a
transverse section at lines T and U of Fig 3 and Fig 3 a sectional plan at line R, S,
Fig.1-of-a-box-constructed.according to this invention.
The sheet metal vessel, box, or chest n is at its sides surrounded by or enclosed
within an outer casing of wood C with its wooden bottom E. The upper part of
the sheet metal lining vessel is provided with a flange resting on the wooden
1
sides C; m is the cover or lid of the sheet metal lining vessel and i is a rim which
may be provided upon the inside of the lid or cover m as shown on the right hand
in Figs 1 and 2 or such rim i may instead be formed upon the sides n of the metal
vessel itself as shown on the left in Figs 1 and 2. Around this rim i whether it
be formed on the lid or cover m or upon the sides n of the metal vessel an india
rubber ring K is laid which on closing down the lid of the box will be compressed
between the cover m and the flange and so effectually render the box or case air
and water-tight.
A wooden lid or cover D is laid over all and is held down to the wooden box C
by the screws A which take into nuts or sockets B said sockets B being screwed or
let into the sides of the outer wooden case or box. These nuts or sockets B consist
of metal cylinders c having an internal screw thread d for receiving the screws A
and are furnished on their outer surfaces with a screw thread c for wood. By
means of a screw driver of the kind shown in Fig 4 these nuts or sockets B are
screwed down into the sides of the outer wood case and in order that they may not
work themselves loose after being so screwed down into position, a small groove or
slot fis provided in the cylinder c into which a pin may be driven to hold same
securely in place.
The external screw thread e formed on the cylinder c of the socket piece B may
be made to taper towards the bottom as seen on the right hand of Fig 1 so as to
more easily enter the wood, and to serve as a stop a conical head h or a flat head q
may be formed thereon as shown on the left and right hand of Fig 2.
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:-
Firstly. The closing or fastening of sheet metal vessels encased with wood by
means of the india-rubber ring K flange rim and nuts or sockets B with
internal and external screw threads, said nuts or sockets B receiving the fastening
screws A of the cover D as and for the purpose herein set forth and shown by the
accompanying drawings.
'
Secondly. In means for closing or fastening wood or wood covered vessels the
screw nut or socket B composed of a cylinder c with an external securing screw

page_text: thread c and an internal screw thread d as and for the purpose herein set forth and
shown by the drawings.
Thirdly. In means for closing or fastening wood or wood covered vessels the
screw nut or socket B composed of a cylinder c with an external securing screw-
thread e and an internal screw thread & said cylinder c being provided with a
groove or slot ƒ as and for the purpose herein described and shown by the
drawings.
Fourthly. In means for closing or fastening wood or wood covered vessels the
screw nut or socket B consisting of a cylinder c tapering external securing screw
thread e internal screw thread d, and with or without the groove or slot fas and
for the purpose herein described and shown by the drawings.
Fifthly. In the means for closing or fastening wood or wood covered vessels the
screw nut or socket B consisting of a cylinder c external securing thread e internal
screw thread d groove f and conical head / or cylindrical head q as and for the
purpose herein described and shown by the drawings.
Dated this 20th day of November 1884.