An Improved Machine for Making or Cutting Cardboard Frames.
Year: 1898

page_text: Date of Application, 24th Jan., 1898
Complete Specification Left. 19th Sept., 1898-Accepted, 12th Nov., 1898
An Improved Machine for Making or Cutting Cardboard Frames.
I, OTTO FISCHER, of 59, Dresdenerstrasse, Berlin, in the Empire of Germany,
Manufacturer, do hereby declare the nature of this invention to be as follows:-
This invention has for its object a machine for cutting out rectangular card-
board frames from cardboard of suitable strength, and immaterially whether with
a straight or oblique cut. The cardboard or pasteboard may be cut not merely
internally but also externally. The adjustment of the knives during the cutting
and the withdrawal of the same after the cutting is ended takes place automati-
cally. The latter takes place slowly during the reciprocating movement of the
knives.
The invention is shown in the accompanying drawings:
Figure 1 is a side view of the machine;
Figure 2 a plan view;
Figure 3 a left hand end view;
Figure 4 an elevation of a support on an enlarged scale;
Figure 5 a side view of Figure 4, the support carriage being cut away;
Figure 6 a rear view of a portion of the support;
Figure 7 a partial cross section of Figure 4 on the lines II-II of Figure 4.
In the end view in Figure 3 the front guide support is for the sake of clearness
removed along the line II of Figure 2.
The arrangement of the machine is as follows:
1. Device for making the two longitudinal incisions for the opening of the
cardboard frame.
Two guide bars 2 are mounted on a frame 1, in which bars a carriage 3 is
A standard or frame 5
adjustable to and fro in the directions of the arrows 4.
is secured to each of the bars 2 and these frames carry a plank 6 extending over
the carriage. On this plank two supports A mutually adjustable towards or away
from one another by means of a screw spindle 7, Figures 1 and 3, mounted in
the plank are arranged. Each support consists, as may be seen in Figures 4
a bolt 9 is
and 7 of a support carriage 8 on which a knife box pivoting on
arranged, said knife box consisting of a carriage guide a and a carriage b mounted
in the same, in which the actual knife support 11 is adjustably arranged. The
knives 12 may therefore be adjusted to any desired angle to the horizontal and
may be regulated in their depth of movement.
The pasteboard or cardboard 10 which is to be operated on is firmly held in
the carriage 3 by means of an arrangement which will be hereinafter described
and this pasteboard is moved to and fro with the carriage under the knives 12
until the two longitudinal incisions in the same have been made.
In order to automatically effect the simultaneous pushing forward of the knife
carrier 11 with the knives 12 the following arrangement is adopted:
The bolt 9 on which the knife case pivots is perforated and a spindle c is

page_text: The carriage 3 may be moved to and fro by means of any suitable arrangement.
In the present case a crank 53 revoluble and adjustable by means of gearing 51
and 52 is selected which engages with a push rod 54 pivotally arranged on the
under side of the carriage.
III. Arrangement for clamping or securing the cardboard on the carriage.
A bar 56 standing under the action of springs 57 having an upward pressure
is arranged on each two supports 55. Rack bars 58 and 59 are also adjustably
arranged in the carriage (see Figures 2 and 3) lying normally to the bars 56,
each of which rackbars carries one of the supports 55 and a pin 64 and by means
of a gearing 60 may be moved towards or away from one another. Elbow
levers 62 are arranged on the carriage pivoting in adjustable supports 61 and held
by means of a spring which is not shown in the drawings. If by means of the
gearing 60, the racks 58 and 59 and thereby the bars 56 are moved towards one
another, the latter engage under the arms 63 of the elbow levers 62 and on the
further approach towards one another of the bars 56 the pins 64 encounter the
lower arm 65 of the elbow levers so that the arms 63 engage the bars 56 and
press them downwards, whereby the pasteboard or cardboard is pressed down on
the carriage.
If the pasteboard is to be nicked on the outside, it is pressed against the car-
riage after the bars 56 have first been removed by means of bars 66 specially
arranged or inserted for this purpose. These bars 66, which must be removed in
case the bars 56 are to be used, are carried in adjustable supports 67 mounted on
the guide bars and are also held in their highest position by means of springs
mounted in the said supports.
The shaft 68 is also mounted in each two supports 67, which shaft has at its
ends cams or eccentrics 69 and handles 70.
If the shaft 68 be revolved to about 180° eccentrics 69 press the pasteboard
against the carriage and it can be cut, whilst the supports A or B are inclined
under an opposed elbow piece and are brought into action in the manner herein-
before described.
The working of this machine may be briefly described as follows:-
The pasteboard or cardboard to be treated is firmly fixed in the manner described
in Part III. on the carriage 3, the supports A. described in Part I. being brought
into the correct position. The two longitudinal incisions in the cardboard or
pasteboard are then made. by the part m as described in Part I. and when this
has taken place the carriage is fixed in the middle position, the supports B
mounted on the bridge 31 are adjusted and operated by means of gearing 32
cranks 35 and push rods 36 diagonally to the two first incisions by which means
the two transverse incisions are made. The aperture of the cardboard frame is
then finished.
Dated this 00d day of Januar 1908
I, OTTO FISCHER, of 59, Dresdenerstrasse, Berlin, in the Empire of Germany,
Manufacturer, 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:-
This invention has for its object a machine for cutting out rectangular card-

page_text: greatest eccentricity of the eccentric or cam 17 comes in contact with the roller 16
so that actually the knives 12 are only adjusted to the depth rendered necessary
by the cardboard, as the eccentric 17 may be brought by means of a hand-
wheel 25 into the necessary position corresponding to the thickness of cardboard
or pasteboard to be treated before starting the machine.
The curve of the cam falls off proportionately from the point i so that on the
further reciprocatory movement of the carriage the rack 14 returns and thereby a
somewhat rapid withdrawal of the knives takes place.
II. The apparatus for making the two other incisions crossing the longitu-
dinal incisions mentioned in Part I.
When the pasteboard or cardboard has been nicked or cut through internally
or externally on two opposite sides in a parallel direction, the carriage is pushed
into the centre and fixed by means of a pin k, (Figure 2, on the right) or the like,
in order to carry out the incisions or cuts at right angles to the first incisions or
cuts.
Two supports 26 are mounted transversely across the direction of movement of
the carriage on the 'bars 2 which supports have a slide track 28 (see Figures 2
and 3). In each slide track 28 there is a carriage 29 with rollers 30 adjustably
arranged. Both carriages are mounted on a common bridge 31 (see also Figure 1)
which carries two supports B. The reciprocatory displacement of the bridge 31
with the carriage 29 in the directions of the arrow 27 is effected by means of push
rods 36 and adjustable cranks 35, which latter are mounted on a common shaft 34
and are driven by means of gearing 32. The shaft 34 is mounted in bearings 33
fixed in the frames or supports 26. In the first incisions described in Part I., the
cardboard or pasteboard is moved to and fro, whilst in the present case the knives
move to and fro. The supports adjustably mounted in the bridge 31 are arranged
precisely like the supports A, but their cogwheels are guided in one of the
frames or supports m of the bridge 31 and engage a short rack 45. The right
hand end of this rack 45 has also an arm 46 (shown in dotted lines in Figure 2),
which arm encounters the eccentric or cam 47 (shown in dotted lines in Figure 1)
of a shifting apparatus which is arranged similarly to the shifting apparatus
described in Part I., with the exception that the separate parts such as the eccen-
tric or cam 47, ratchet wheel 48, shaft 49, handwheel 50 and adjustable plate 44
with the pawl are arranged in such a manner as the conditions of space allow.
The action of this shifting apparatus is similar. It is operated by contacts 43
situated on the right hand support 26 and a displacement of the rack 45 and ad-
justment of the knife carrier 11 of the support B takes place by means of the
same in the same manner as was described in Part I.
The carriage 3 may be moved to and fro by means of any suitable arrangement.
In the present case a crank 53 revoluble and adjustable by means of gearing 51
and 52 is selected which engages with a push rod 54 pivotally arranged on the
under side of the carriage.
III. Arrangement for clamping or securing the cardboard on the carriage.
A bar 56 standing under the action of springs 57 having an upward pressure
is arranged on each two supports 55. Rackbars 58 and 59 are also adjustably
arranged in the carriage (see Figures and 3) lying normally to the bars 56,
each of which rackbars carries one of the supports 55 and a pin 64 and by means
Elbow
of a gearing 60 may be moved towards or away from one another.
levers 62 are arranged on the carriage pivoting in adjustable supports 61 and held
by means of a spring which is not shown in the drawings. If by means of the
gearing 60, the racks 58 and 59 and thereby the bars 56 are moved towards one
another, the latter engage under the arms 63 of the elbow levers 62 and on the
further approach towards one another of the bars 56 the pins 64 encounter the
lower arm 65 of the elbow levers so that the arms 63 engage the bars 56 and
press them downwards, whereby the pasteboard or cardboard is pressed down on
the carriage.
If the pasteboard is to be nicked on the outside, it is pressed against the car-

page_text: one another by means of rackbar gearing (58, 59 and 60), and on the other hand
by an arrangement of elbow levers (62) pivoting in adjustable supports accord-
ing to the bars and having an arm projecting downwards, the horizontal arms of
which elbow levers on the adjustment of the bars (56) engage over the latter and
on a further adjustment of the parallel bars (56), the downwardly projecting arm
is simultaneously so influenced by a pin (64) mounted on the rackbars (58 and
59) that the horizontal arms press the bars against the cardboard substantially as
described.
5. in the machine for cutting out cardboard frames hereinbefore described, the
arrangement of bars (66) capable of being inserted or removed and standing under
the pressure of springs and adapted to be pressed by means of cams or eccen-
trics (61) against the cardboard, with the object of enabling either straight or
oblique cuts to be made on the outside of the arm after the clamp bars (56) have
been removed substantially as hereinbefore described.
Dated this 17th day of September 1898.
WM. P. THOMPSON & Co.,
Of 6, Lord Street, Liverpool, Agents for the Applicant.
WM. P. THOMPSON & Co.,
Of 6, Lord Street, Liverpool, Agents for the Applicant.