Improvements in Apparatus for the Manufacture of Tin Cans or Boxes.
Year: 1889

page_text: Date of Application, 8th Nov., 1889
Complete Specification Left, 7th Aug., 1890-Accepted, 13th Sept., 1890
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for the Manufacture of Tin Cans
or Boxes.
We, WALTER EDWARD HIGGS, Mechanical Engineer, of 21 College Place, Camden
Town, in the County of Middlesex, ERNEST. FEATHERSTONE GRIFFIN, Factory Manager,
of Sunnyside, Wightman Road, Hornsey, in the said County, and WILLIAM ROOKE,
Accountant, of 11 Milk Street Buildings, Cheapside, in the City of London, do hereby
declare the nature of this invention to be as follows:-
The object of this invention is to greatly simplify the construction of what are
known as double seaming machines and an important feature is that by it the single
seaming machines now in common use can at a small cost be converted into double
seaming machines.
The single scaming machines as at present constructed have two revolving chucks
to hold the top and bottom of the can whilst the seams are being made. The spindle
of one of these chucks. is moveable endwise to allow of the can being put into place.
The seaming tool consists of a roller which can be pressed inwards by a treadle so as
to bear on and turn in the edges of the top or bottom of the can which are brought
opposite to it in turn.
According to this invention we employ two treadles in place of one, each treadle
independently actuating a slide carrying a tool so that whilst one of the tools is
operating upon one end of the can the other tool can be caused to operate upon the
other end.
We also apply to the machine a third tool namely a tucking-in wheel carried by an
arm free to oscillate in a plane parallel to the axis of the can, so that the tucking-in
wheel can be brought into position to operate against the turned in edge of either end
of can. The operation of the machine is as follows:-
The body of the can which consists of a cylinder having the two ends of its sides
turned out so as to project radially together with the top and bottom which consist of
flat or dished plates with their edges turned back into a cylindrical form are first
placed between the chucks and caused to revolve, the plane wheel is then pressed by
means of its treadle against the edge of say the top, by which means the edge is
turned down radially at right angles to the axis of the can.
the can.
The second tool or tucking-in wheel is next brought into operation by a lever. The
effect of this is to tuck in the edge of the top and with it the radially projecting edge
of the end of the body causing them both to incline at an acute angle to the axis of
The can is then turned end for ond and the same operations are performed
on the bottom and after this has been done the third and finishing too! consisting of a
wheel whose surface is concave is brought into operation by the second treadle against
the top, then the can is turned end for end and the same operation is performed on
the bottom. By this tool the now formed joints are consolidated and finished.
Dated this 8th day of November 1889.
W. E. HIGGS.
E. F. GRIFFIN.
W. ROOKE.

page_text: COMPLETE SPECIFICATION.
Improvements in Apparatus for the Manufacture of Tin Cans
or Boxes.
We, WALTER EDWARD HIGGS, Mechanical Engineer, of 21 College Place, Camden
Town in the County of Middlesex, ERNEST FEATHERSTONE GRIFFIN, Factory Manager,
of Sunnyside Wightman Road, Hornsey in the said County and WILLIAM ROOKE,
Accountant, of 11 Milk Street Buildings, Cheapside in the City of London, do hereby
declare the nature of our said invention, and in what manner the same is to he
performed to be particularly ascertained and described in and by the following
statement :-
The object of this invention is to greatly simplify the construction of what are
known as double seaming machines and an important feature is that by it the single
seaming machines now in common use, can at a small cost be converted into double
seaming machines.
The single scaming machines as at present constructed have two revolving chucks
to hold the top and bottom of the can, whilst the seams are being made. The spindlo
of one of these chucks is moveable endwise to allow of the can being put into place.
The seaming tool consists of a roller which can be pressed inwards by a treadle so as
to bear on and turn in the edges of the top or bottom of the can which are brought
opposite to it in turn.
According to this invention we employ two treadles in place of one, each treadle
independently actuating a slide carrying a tool so that whilst one of the tools is
operating upon one end of the can the other tool can be caused to operate upon the
other end.
We also apply to the machine a third tool namely a tucking in wheel carried by an
arm free to oscillate in a plane parallel to the axis of the can, so that the tucking in
wheel can be brought into position to operate against the turned in edge of either end
of can.
Figure 3 an end elevation of a machine, constructed according to our invention.
In each of these figure some of the parts are shown in section and others omitted
for the sake of clearness.
a is the frame, b and c are chucks for holding the can. 6 and c¹ are the pulleys by
which these chucks are independently driven at the same speed. The chuck b can be
moved in and out by means of the lever d e and fare tools which can be pressed
against the can by means of the treadles e' f' and levers e"f" pivotted on the axis g.
They can be operated either independently or together. is the tucking-in wheel,
mounted on the lover so that it can be applied to either end of the can.
This lever is pivotted on the screw " so that the tucking in wheel can be raised
or lowered for different sizes of cans.
Figures 4 to 7 are diagram sectional views illustrating the various stages. The
operation of the machine is as follows:-
The body of a can which consists of a cylinder having the two ends of its sides
turned out so as to project radially together with the top and bottom & which consist
of flat or dished plates with their edges turned back into a cylindrical form, are first.
placed between the chucks b and c and caused to revolve,. the plane wheel e is then
pressed by means of its treadle against the edge of say the bottom k, by which
means the edge is turned down radially at right angles to the axis of the can as
shown in Figure 5.
The second tool or tucking-in wheel his next brought into operation by the lever h³.
The effect of this is as shown in Figure 6 to tuck in the edge of the bottom k, and
with it the radially projecting edge of the end of the body ?, causing them both to

page_text: incline at an acute angle to the axis of the can. The can is then turned end for end,
and the same operations are performed on the top and after this has been done the
third and finishing tool of consisting of a wheel whose surface is concave, is brought
into operation by the second treadle against the top, then the can is turned end for end,
and the same operation is performed on the bottom. By this tool, the now formed
joints are consolidated and finished.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :-
1. The combination with a seaming machine of two treadles each, actuating a tool,
one to operate on one end of the can or box, and the other on the other end, substan-
tially as described.
2. The combination with a seaming machine of a tucking in tool, so mounted that
it can be moved parallel to the axis of the can or box substantially as described.
3. Apparatus for the manufacture of tin cans or boxes, substantially as described.
Dated this 7th day of August 1890.
CARPMAEL & Co.,
Agents.