Year: 1887

page_text: Date of Application, 20th Oct., 1887
Complete Left, 16th Mar., 1888
Complete Accepted, 25th May, 1888
1 FREDERICK JOHN KING of 6 Bishopsgate Avenue in the City of London
Merchani do hereby declare the nature of this Invention to be as follows:-
My invention has for its object to provide simple and convenient apparatus for
forming the angles and for fixing the ends of metal cases without rivetting or
soldering.
In carrying out my Invention in order to form the angles or covers of metal cases
I take a plate of metal of the necessary dimensions to form the body part of the case
and after folding over the ends in the ordinary manner to form the seam the plate is
passed beneath a plate or bar by which it is held against a fixed surface with the
portion of the plate required to be bent to an angle projecting and in order to regulate
the distance to which the plate is allowed to project I provide on the lever or on levers
by which the bending is effected an adjustable stop or stops by means of which the
size of the case may be accurately regulated as required.
The angles in the body of the case having been made and the seam closed so as to
form a tube it is taken to the apparatus for fixing the bottom and cover thereto. This
apparatus consists of a frame into which the body or tube is placed over a block of
wood or other suitable material preferably faced with metal the said block extending
to within a short distance of the top of the tube the sides of which should project
sufficiently above the block to fold over onto the bottom when placed in position as
hereinafter described. The plate to form the bottom is made of sufficient size to
extend say one quarter to three quarters of an inch outside the four sides of the tube or
body of the case or chest which projecting edges may be turned up to right angles by
means of the apparatus hereinbefore described or otherwise so as to form a shallow tray
which will snugly fit into the tube. The bottom thus formed is inserted in the tube
onto the block with the rim or turned up edges upwards so that the upper edges of
the four sides of the tube will project above the turned up edges of the bottom plate
to the extent of say about a quarter of an inch or more.

page_text: The frame hereinbefore referred to carries a nipping device the lower jaw of which
is square or flat at its end and is hinged to the frame whilst the upper jaw is provided
at its end with a projecting edge or with projections between which projecting edge
or projections and the square or flat end of the bottom jaw the metal to be bent is
placed and firmly held in position. The upper jaw is hinged to a lever which is hinged
to the lower jaw so that a very powerful grip is imparted to the article placed between
the jaws.
The tube with the bottom inserted is placed in position in the frame and the
projecting edge of one side of the tube or body is inserted between the jaws of the
nipping device which is then turned on its hinges so as to cause the said projecting
edge to be bent inwards to an angle over the projecting rim of the bottom plate. The
turned over edge is then released from the nipping jaws. The partially turned over
edge is then forced into contact with the turned up edge of the bottom plate of the
chest. For this purpose the upper jaw of the gripping device is turned back on its
hinge and the lower jaw is then turned on its hinge so as to cause the flat or square
end thereof to press forcibly against the turned up edge of the bottom plate which
is thereby enclosed within the turned over edge of the sides of the tube or body of
the case or chest the tube or body of the case is then turned in the frame so as to
bring the other projecting edges into position to be similarly operated on. The next
operation is to flatten the rim thus formed onto the bottom of the case or chest and for
this purpose the rim is nipped between the jaws of the nipping device and turned in
towards the bottom at an angle and afterwards pressed against the bottom by means
of the square end of the lower jaw as hereinbefore described for turning the projecting
edges of the tube over the projecting edge of the bottom plate. The bottom is thus
fixed in position without the use of rivets or solder.
The bottom having been fixed the chest or case thus far made is removed from the
block and turned upside down to have the top fixed thereto which is effected in the
same way as that described for fixing the bottom but instead of the block herein before
described for resisting the pressure in the nipping and folding operation a support is
employed capable of being taken apart or of being folded so as to be readily removed
from the interior of the case through the opening in the top (provided for filling)
'when the case is finished.
11007

page_text: COMPLETE SPECIFICATION.
Improvements in Apparatus for the Manufacture of Metal Chests
or Cases.
1 FREDERICK JOHN KING of 6 Bishopsgate Avenue in the City of London
Merchant 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 has for its object to provide simple and convenient apparatus for
forming the angles and for fixing the ends of metal cases without rivetting or
soldering.
I will describe my Invention with reference to the accompanying drawings
Figure 1 of which is a side elevation and Figure 2 a plan of an apparatus for bending
the plate of metal (of which the box or case is to be made) to form the seam and the
angles or corners of the case.
Figure 3 is a sectional elevation and Figure 4 a plan of my improved apparatus for
fixing the bottom and top of the case into the body thereof and the remaining Figures
illustrate the various stages in the manufacture of the case, and details which will be
herein-after referred to.
In carrying out my Invention I take a sheet or plate of metal A of the required
dimensions to form the four sides or body of the case, and place it upon the table B
Figures 1 and 2 one end of the plate being passed beneath a plate C and made to
project in front thereof to a distance equal to the length required to be folded over to
form the seam the distance being governed by placing the opposite end of the plate
in contact with the stop or shoulder on the gauge attached to the table B. The
folding over of the projecting end is effected in the ordinary manner by the hinged
plate or bar D operated by means of the levers or handles E which when moved in
an upward direction will cause the plate D to bend the projecting end of the plate A
against and over the edge of the plate or bar C. This bar C is held down upon the
plate A when being bent by means of an eccentric or by attaching it to a treadle or
by other suitable means so as to prevent it moving out of position. When one end
of the plate is turned over or bent as shown at a the opposite end is made to project
the required distance to be similarly acted upon the turned over end a of the plate
being placed against the stop or shoulder on the gauge b. The two ends of the
plate being thus bent over as shown at a a¹ to form the seam the said plate is fed
forward to the required distance to be bent to form the first angle or corner c of the
case the distance to which the plate is made to project for this purpose being gauged
by placing the opposite end of the said plate against the stop or shoulder of the
gauge b. The plate is then bent at this part by raising the handles as described for
turning over the end a a¹ of the plate. The distance of the said stop b³ from the front
edge of the bar C is regulated according to the size of case to be made. The first

page_text: angle or corner c having been formed the plate is fed forward until the said angle or
corner c comes against a bar or stop F carried on the handle E which stop determines
the part at which the plate is to be bent to form the next angle or corner c² the said
plate being bent by raising the handles as before. In like manner the other angles
are formed after which the bent plate is removed and the two bent over ends a a
hooked together and hammered to make a tight joint or seam.
The bar or stop F is capable of being adjusted in position on the levers or handles E
by which the bending is effected, according to the size of case to be made.
The angles in the body of the case having been made and the seam closed so as
to form a tube it is taken to the apparatus illustrated by Figures 3 and 4 for fixing
the bottom and top thereto. The plate to form the bottom of the case is made of
sufficient size to extend say about à quarter of an inch outside the four sides of the
tube or body of the case or chest, which projecting edges are turned up to right
angles by means of the apparatus herein before described, or by other suitable means,
so as to form a shallow tray as shown in Figure 5 which will snugly fit into the tube.
In like manner the top is formed from a plate the same size as that from which the
bottom is made but provided with an opening therein as shown in Figure 6 which
may be stamped out in a press or by other means. In the body or tube is placed an
anvil or surface to receive the pressure when securing the bottom and top of the case
which anvil may consist of a block of wood faced with metal but I prefer to form the
said anvil of a number of pieces of metal or wood and metal fitted and held together
so as to be capable of being readily taken apart and removed from the case when
finished. This anvil is illustrated in Figure 7 and consists of top and bottom frames & d'
kept at the required distance apart by angle irons d². Each frame d d' consists of
four bars connected together at their ends by hinges d' and bolts d³. The hinges d
extend beyond the edge of the bars forming the frame, and enter the interior of the
angle irons d² thereby retaining the said angle irons in their vertical position and
giving rigidity to the anvil. The bottom plate formed as herein before described is
inserted in the tube so as to rest on the block or anvil with the rim or turned up
elges upwards the anvil being so far within the tube that the upper edges of the four
sides of the said tube will project above the turned up edges of the bottom plate to the
extent of say about a quarter of an inch as shown in Figure 3".
g
The apparatus Figures 3 and 4 for fixing the bottom and top plates in the tube or
body A consists of a nipping device containing two jaws G and I the jaw G being
square or flat at its end and hinged at to the frame H, whilst the other jaw
is provided at its end with a projecting edge or with projections, between which
projecting edge or projections, and the square or flat end g of the jaw G; the metal to
be bent is placed and firmly held. The jaw I is hinged at 12 to a lever 13 which is
hinged to the jaw G at G so that by pressing together the two handles G³ and I³ of
the respective jaws G and I a very powerful grip will be imparted to the article placed
between the jaws.
The tube with the anvil therein and the bottom insorted, is placed in position in
the frame H (as shewn by dotted lines in Fig. 3) on a plate or turntable M and the
projecting edge of one side of the tube or body is inserted between the jaws G I of
the nipping device as shown in Figures 3 and 3" which device is then turned on its
hinges by means of the handles 13 G3 into the position shown in Figure 8 so as to
cause the projecting edge of the tube held between the jaws to be bent inwards to an
angle over the projecting rim of the bottom plate as shown in Figure 8. The
partially turned over edge is then released from the nipping jaws and is then folded
over by the jaw G into contact with the turned up edge or rim of the bottom plate ;
to do this the jaw I is turned back on its hinge as shown in Figure 9 and the jaw G
is then turned on its hinge so as to cause the flat or square endy thereof to press the
partially turned over edge of the tube forcibly against the turned up edge of the
bottom plate the said edge being thereby enclosed within the turned over edge of
the side of the tube or body of the case or chest as shown in Figure 9". The tube
or partially formed case is then removed from the frame H by drawing out the turn-
table with the tube thereon, and then returned into the frame with another of the

page_text: projecting edges in position to be turned over and in like manner the other projecting
edges are brought successively into position and acted on in the manner described.
The projecting edges of the four sides of the tube being thus folded over the rim of
the bottom plate a rim consisting of three thicknesses of metal is thus formed round
the tube as shewn in Figure 9 and the next operation is to Hatten this rim onto the
bottom plate. For this purpose the tube and the turntable carrying it is raised so
as to bring the surface of the bottom plate about level with the top edge 3 of the
frame H the rim being made to project above the frame. The rim on one of the four
sides of the tube is then nipped between the jaws of the nipping device and turned
in at an angle towards the bottom as shown in Figure 9b and afterwards pressed
against the bottom by means of the square ond of the jaw G as shown in Figures 10
and 10 and the other portions of the rim being similarly acted upon the bottom is
fixed in position without the use of rivets or solder. The elevation of the turntable
with the partly formed chest thereon may be effected by inserting a plate of the
required thickness between the turntable and the base plate of the apparatus or. by
any other suitable means. The chest or case thus far made and still containing the
anvil is removed from the frame and turned upside down to have the top fixed thereto
which is effected in the same way as that described for fixing the bottom the anvil
being of such a length that the four sides of the body of the case will project about
a quarter of an inch above the turned up edge of the top plate when the said plate is
resting on the anvil. When the fixing of the top plate is completed the case is
removed from the apparatus and the anvil taken apart, and removed from the interior.
To remove the anvil it is simply necessary to withdraw the bolts d³ which connect
together the parts of the upper and lower frames after which the parts may be easily
separated and withdrawn through the opening in the top of the case.
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 apparatus for bending plates of metal for the manufacture of metal chests or
cases, a gauge bar or stop (F) attached to the levers or handles E and capable of
adjustment thereon according to the size of cases to be made substantially as herein-
before described and illustrated in Figures 1 and 2 of the accompanying drawings.
2. In apparatus for the manufacture of metal chests or cases a nipping and folding
device consisting of two jaws connected together and hinged to a stationary frame
or support one of the said jaws being provided with a flat or square edge the edge of
the other jaw being provided with a projection or with projections and arranged to
operate substantially in the manner and for the purpose hereinbefore described with
reference to Figures 3 to 10 of the accompanying drawings.
3. The combination with the subject matter of the last preceding claiming clause
of an anvil or frame to receive the pressure of the gripping and folding device when
fixing the ends of a chest or case the said anvil consisting of a number of pieces
capable of being readily connected and taken apart substantially as and for the purpose
hereinbefore described and illustrated in the accompanying drawings.
4. The general construction combination and arrangement of parts constituting
apparatus for fixing the ends of metal chests or cases as hereinbefore described and
illustrated by Figure 3 to 10ª of the accompanying drawings.
Dated this 16th day of March 1888