Year: 1885

page_text: I EMIL HAMMERSTEIN of 4 Amalienstrasse Vienna in the Empire of Austria,
Merchant do hereby declare the nature of this invention (communicated by
F. S. Köhler of Prague in the Empire of Austria Manufacturer) to be as follows:-
The object of my invention is to produce a machine that will cut or shear metal
plates or sheets into the desired small pieces preferably of a cubical or other some-
what similar shape in one operation that is to say as the plate or sheet is passing
once through the machine and each of these small pieces shall be or can be made to
be of an exactly equal and similar shape and size.
To carry out this object I mount in or on a suitable frame two series of cutting
discs secured on two parallel shafts or axles so arranged that the peripheries or
cutting edges of these discs meet each other. The discs are preferably so secured
on the axles that the distance between each disc on the same axle can be adjusted.
Instead of the two series of separate discs aforesaid I can also form similar cutting
edges round and on the outer surfaces of two rollers or cylinders. A suitable table
with guides and other usual appliances is supported on the frame on which the
plate or sheet can be laid and when the axles that carry the discs or the rollers
aforesaid are caused to rotate in contrary directions by any usual appliances the
plate or sheet is forced or drawn in between the cutting edges and is thereby cut
or sheared into long strips. One or more knives or shears are supported in guides
formed therefor on the frame transversely across the same in such a position that
as these strips issue from between the cutting edges as aforesaid the knife or
knives are caused by any suitable arrangement of usual devices to come down
or to cut these strips into the desired lengths and thus pieces of any size and shape
can be produced according to the distance apart of the cutting edges and the
frequency in which the knife or knives are caused to cut the strips.

page_text: An Improved Machine for Cutting or Shearing Metal Plates
or Sheets.
I EMIL HAMMERSTEIN of The Holborn Viaduct Hotel in the City of London
Merchant do hereby declare the nature of this invention (communicated by
F. S. Köhler of Prague in the Empire of Austria Manufacturer) and in what manner
the same is to be performed, to be particularly described and ascertained in and by
the following statement :-
The object of this invention is to produce and provide for use a machine that
will cut or shear metal plates or sheets into the desired small pieces preferably of a
cubical or other somewhat similar shape in one operation that is to say as the plate
or sheet is passing once through the machine and each of these small pieces so
produced shall be or can be made to be of an exactly equal and similar shape and
size and therefore when this machine is so fitted and arranged as to produce such
exactly equal and similar pieces as aforesaid it is extremely suitable for use with
the method of making shot and other similar articles also communicated to me by
my correspondent F. S. Köhler of Prague Austria and for which I have made
application for a Patent under number 14650 dated 28 November 1885.
This object aforesaid is carried out by passing the metal plate or sheet that is to
be treated between two grooved rollers or two series of cutting discs by the which
the said plate or sheet is divided into strips and as these strips issue from between
the said rollers or discs the said strips are divided transversely by shear cutters
while the rate at which the said plate or sheet is fed into the machine is so
regulated and adjusted that certain desired lengths of the said strips are so cut off
by the said shear cutters.
In order the more clearly to explain this invention and in what manner the
same is to be performed I refer to the accompanying drawings in which I have
shewn a very convenient and suitable form of this machine.
Figure 1 is a side elevation of the machine. Figure 2 is a rear elevation of the
same with the table removed. Figure 3 is a plan of the same. Figure 4 is a
vertical transverse section of the same with the table in position.
On the surfaces of the two rollers a and a¹ are formed corresponding series of
parallel annular grooves and the sharpened or angular shoulders of these grooves
constitute the required cutting edges which when the said rollers a and a¹ are in
position for work accurately fit each other and may slightly interlock if required
and thus the plate or sheet as it passes in between these rollers is divided by the
cutting edges thereon into a series of strips corresponding in number with the
grooves in the rollers. The upper roller a is carried in suitable bearings in and by
the sliding block b while the lower roller a¹ is carried in suitable bearings formed
in or borne by the frame of the machine and the exact position of the upper
roller a in respect of the lower roller a' can be adjusted and regulated by the
adjusting screw c. A funnel or guide piece d the teeth whereof exactly or other-
wise fit and enter into all the grooves in the rollers a and a¹ and disengage
therefrom and force thereout all the strips into which the plate or sheet of metal
has been divided as is aforesaid then collects and replaces on the same level all the

page_text: said strips and guides the same forwards to the shear cutters e and e¹. The lower
cutter e is firmly attached to a connecting rib f of the frame and the upper cutter e¹
is carried by the crosshead g which travels in guides formed therefor between the
frame h and the caps or covering pieces and this crosshead 9 is actuated and
driven upwards and downwards in the said guides by the rods k and k¹ mounted
on the eccentrics and which eccentrics and are fitted on the shaft m
whereon also may be fitted and mounted the fast and loose pulleys n and n¹
whereby or by means of which the said shaft m may be revolved in any usual
manner or this the main driving shaft m may be revolved in other convenient
manner as may be desired.
The grooves in the rollers aforesaid can be made of any desired breadth and
depth to produce strips in accordance therewith and if one machine is or may be
required to produce pieces of different sizes at various times corresponding pairs of
rollers with the required varying breadths and depths of the grooves therein can
be made and at any particular time the proper pair of rollers can be placed in the
machine.
Instead also of the rollers hereinbefore described a series of discs can be secured
on two shafts on all of which discs or on the alternate or other discs on each shaft
are formed in a similar manner the required cutting edges and these discs would
preferably be so secured on the said shafts in any usual or convenient manner that
the distance between the said discs can be adjusted and when the said shafts with
the said discs are mounted and carried as are the rollers herein before described the
plate or sheet would be or could be similarly divided into strips as is required.
By this machine therefore as hereinbefore described pieces of any size and of any
rectilinear shape can be produced from the plate or sheet of metal according to the
depth of the grooves in the rollers and the distance apart of the cutting edges on
the said rollers or on the discs and the frequency with which the shear cutters are
caused to divide the strips and the angle to the line of the said strips at which the
said shear cutters are placed and the rate at which the said plate or sheet is fed
into the said rollers or discs.
Any usual or convenient intermittent feed motion may be used with and in this
machine so constructed and arranged that a certain desired amount of progression
may be given at the necessary and required instants or times to the plate or sheet
as the same passes in between the rollers or discs and to the strips made therefrom
as the same pass from the said rollers or discs to the shear cutters whereby the
said shear cutters at every stroke shall cut off the certain desired lengths of the
strips.
I shew in the accompanying drawing a convenient method of effecting this
object and giving the desired intermittent feed though I would have it clearly
understood that I do not limit myself thereto. The eccentric o is fitted on the
shaft m the rod p whereof is jointed to the crank p¹ on the shaft q and thus by the
revolution of the said shaft m an oscillating motion is given to the said shaft q on
which shaft q is secured in a convenient position the arm r whereto and whereon
the end of the lever 8 is connected and borne. This lever 8 which may be pivotted
in any suitable position actuates through and by any usual pawls or otherwise the
ratchet wheel t which wheel t preferably through geared wheels on the counter
shafts u and ul as shewn causes the lower roller a¹ to revolve and the two rollers a
and a can also very conveniently be geared together. All the aforesaid geared
wheels are so made and proportioned as to produce the average amount of move-
ment required of the rollers a and a¹ to give the average desired progression to the
plate or sheet and to regulate still more exactly and minutely this amount of
movement aforesaid the arm r preferably carries a screw and the end of the lever 8
is connected to and borne on and held by a sleeve working on this screw. Thus at
every revolution of the main shaft m and cousequently at every complete up and
down stroke of the cutter e¹ an intermittent movement of the rollers a and a¹ and
thereby an intermittent forward progression of the plate or sheet and of the strips
of metal formed therefrom is effected the exact amount of which progression can be

page_text: regulated by the screw on the arm and a graduated scale can very conveniently
be provided on the said arm r to indicate and register the said exact amount of
the intermittent forward progression aforesaid.
The pieces of metal when so cut off as hereinbefore described by the shear.
cutters & and e¹ fall into the trough and can be conveyed away thereby. This
machine is supported in and by a suitable frame standing on the base plate x and
the plate or sheet of metal is laid on and is supported by the table y before the
same enters between the rollers a and a¹. The screw z secures the guide piece or
funnel d hereinbefore described in position.
I have thus described and I have shewn in the accompanying drawings what
I consider to be a very convenient and suitable form of a machine for performing
and carrying into effect and practice this invention but it is sufficiently obvious
that I do not limit myself to the exact machine as so described and shewn or to
the exact details of the several parts thereof or to the exact relative or absolute
positions of the said several parts thereof or to the exact construction of the same
for such alterations or varieties of arrangement may be made therein as may be
convenient or expedient or suitable in each particular 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. The combination of the grooved rollers or the discs on which are cutting
edges the transverse shear cutters and an intermittent feed motion substantially as
and for the purpose hereinbefore described and declared,
2. The machine for cutting sheets of metal into small pieces substantially as
herein before described and shewn in the accompanying drawing.