Improvements in Apparatus for the Manufacture of Cardboard Boxes or the like.
Year: 1893

page_text: Date of Application. 7th Feb., 1893-Accepted, 26th Aug., 1893
COMPLETE SPECIFICATION.
Improvements in Apparatus for the Manufacture of Cardboard
Boxes or the like.
A communication from EMIL SALTZKORN, Consul, and LUDWIG NICOLAI,
Manufacturer, both of Lobtaustrasse 21, Dresden, in the Empire of Germany.
1, ALFRED JULIUS BOULT of 323 High Holborn in the County of Middlesex,
M.I. Mech. E., and Chartered Patent Agent, 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 relates to machines for the manufacture of cardboard boxes or
the like and consists in an improved machine arranged to operate as follows,-
A strip or band of paper, canvas, or the like, is first covered with a layer of
paste or other adhesive material on one side, for which a suitable separate device
may be used. The strip is then placed around a frame pivotted to the machine,
so that the side on which the paste is spread is turned outwards; a hand-wheel
being turned for this purpose. When the frame is thus surrounded by paper or
the like, covered with paste, a cutting apparatus is set in motion by means of a
pedal whereby the superfluous portion of the strip or band is cut off. A plate of
cardboard having been prepared beforehand, and cut to the size corresponding to
the frame, is now placed on said frame so as to cover in its underside and the
sides or surfaces formed by the band surrounding the frame the cardboard being
retained thereon by the paste. Another movement of the pedal releases the
frame-spindle so that it and the frame together with the cardboard pasted thereto,
move downwards. In thus moving, the frame is first caused to pass between
adjustable rollers which firmly press the cardboard against the band carrying the
paste; it next passes into a guide adjusted to the desired diameter of the cardboard
box. Through a movement of the pedal in the opposite direction the frame is then
raised by means of its spindle, and as it rises, strippers provided on the guide
catch the ready cardboard box and strip it off the frame, so that the box remains
in the guide, while the frame alone ascends.
The next following box drives the previous one further into the guide and so
forth the guide being arranged to receive four or five boxes, and its size is such
as to enable the boxes to remain in it for a sufficient space of time to allow of the
drying of the adhesive material or paste. Each box, as it is expelled from the
guide, falls upon a bed-plate on which a movable frame or carriage is arranged.
Chains passing on one side around a pulley or drum mounted upon the shaft of
the chain mechanism and on the other side over suitable rollers and provided with
a counter-weight, cause this carriage to move to and fro at the same time as the
box containing frame rises and falls with its spindle, so that as the ready boxes
are deposited upon the bed-plate, the carriage conveys them out of the machine.
In the accompanying drawings
Fig. 1 is a sectional front elevation,
Fig. 2 a sectional side elevation, and
Fig.
a plan of the improved cardboard box making machine.
Fig. 4 is a view showing the shape of the pieces of cardboard used in forming
the boxes, the dotted lines indicating the parts at which each such piece is bent to
form the corners at the bottom of the box.
a is the main framing or table having a hollow space b. Upon this table is
placed the support c in which a tube d is adapted to move longitudinally. This
tube surrounds the spindle e, the upper end of which is suspended from or pivotted
to the chain a passing over the roller f, so that it may turn in any desired

page_text: Near its lower end the spindlere is provided with a hand-wheel h, and further
below at its extremity a box-like frame i is adjustably secured. This frame may
of course be exchanged according to the size of the boxes to be manufactured;
or the frame itself may be adjustable as to size so as to correspond to various
sizes of boxes, its sides or walls being so arranged that they may be moved away
from each other or brought closer together according to requirements.
A strip of paper, canvas, or the like, covered with a layer of paste on one side
(by means of a separate device) is placed against one of the sides of the frame i
and while its end is held in position, the frame is turned by means of the hand-
wheel h so that the band or strip tightly envelops it. For cutting off the
superfluous portion of the strip, when the frame is entirely enveloped, an
automatic cutting device is employed. The band or strip unwinds itself from a
roller or spool as required. The cutting device consists of a box or sleeve k
pivotted to the support c and in which a pair of shear-like cheeks are located.
These may be brought nearer to each other for cutting purposes by means of
rods m passing through the said box or sleeve k. The cheeks are pivotted to one
end of a lever n which is itself pivotted through the medium of a standard n² to
the support or frame c. With the other end of the lever na rod or link o is
connected, adapted to be raised and lowered as required by means of a pedal o'.
When the pedal is depressed and the lever correspondingly operated, the rods m
are thereby caused to rise and the cheeks brought closer together. One of these
cheeks carries a sharp cutting blade ', and the other a block of wood, lead or
the like. When these two pieces meet under the action of the operating mechanism
just described, the strip placed between them is cut.
released the cheeks 7 move apart by their own weight.
As soon as the lever n is
In the upper plate of the hollow space is provided a slot through which the
frame i with the cardboard box fitted on to it is adapted to pass. Within that
space are arranged four rollers p, superpcsed crosswise in such a manner that they
firmly press the pieces of cardboard against the sides of the frame i as it passes
between them. Upon leaving the space b, the frame i enters the guider having
the shape of a shoot or tube and the size of which also corresponds to that of
the boxes to be turned out. At the upper end of this guide are arranged
spring-controlled fingers or strippers s which are slightly shifted out of the
way as the frame with the cardboard fixed around it, descends into the guide,.
but which when the frame i rises, firmly adhere to the walls of the cardboard box
and retain it.
こ
Upon the supporting arms a' of the main frame a is arranged a spindle t to which
are rigidly secured a number of discs or drums around which chains or their
equivalent are passed. Upon the intermediate one (v) of these discs travels the
: chaing to which is pivotted the frame-spindle e, so that when the pedal z is operated
and the shaft t turned, the said chain g is caused to reciprocate, the said pedal
being connected by means of the chain to with a small pulley v. By depressing the
pedal, the chain to is unwound from the pulley vl, whereby the shaft t is turned and
the chain caused to wind itself round the pulley r, with the result that the
spindle e together with the frame i rises. In this position the mechanism can be s
arrested if required by means of a bolt u placed over the pedal and thereby
locking it in place. As soon as the lever u is swung over to the other side and the
nechanism thereby released by the consequent withdrawal of the bolt u', the weight
of the spindle e causes it to move downwards, so that the chain g unwinds itself from
the disc or pulley while the chain w under the action of the rising pedal again
winds itself on to its pulley v. By this alternate rotation of the shaft t the other
chains wow passing over the pulleys and over rollers (their opposite ends
being secured to a frame or carriage y) are wound and unwound as required, so
that they cause this carriage y either to advance upon the bed-plate with the box
just dropped from the guider, or to recede under the action of the weighted chain to
secured to the other end of the carriage y and also passing over suitable rollers.
Thus it will be seen that the frame or carriage y and the frame-spindle e are arranged
2.

page_text: to operate alternately in such a manner that when the chain g is wound up and the
said spindle e raised, the chain w' is also wound up and the frame y caused to move
forward along with the cardboard box it carries whereas when the spindle e
descends, the frame or carriage y recedes for the reception of the box about to drop
from the guide r.
To enable the frame i as it descends always to retain its proper position so that it
and into the guider the machine
can pass without hindrance between the rollers
The head c of the frame carries two
is provided with a convenient catch device.
bent rails c' diverging upwardly and forming a guide, while the spindle e is provided
should
If the frame i under the action of the hand-wheel
with a long pin or rod.
have been brought into an inclined position the said pin or rod as the spindle e
descends, moves in contact with one of the bent rails c¹, and as the space between
these rails becomes gradually narrower towards the lower end the said pin or rod
so that they both resume the
will necessarily turn the spindle e and also the frame
proper position.
It need hardly be pointed out that this machine which has been here described
as arranged for operation by hand and foot may if preferred be operated by motive
power derived from any suitable source. For example a suitable driving-wheel
or pulley may be used to turn the shaft t as a substitute for the pedal z and the
chain w.
In the same way the hand-wheel h may be replaced by a cord or strap
pulley.
Having now particularly described and ascertained the nature of the said
invention, as communicated to me by my foreign correspondents, and in what
manner the same is to be performed, 1 declare that what I claim is,-
as
1. A machine for the manufacture of cardboard boxes or the like characterized
by the spindle e carrying a frame such as i and attached to chain mechanism such
the said spindle being adapted to be turned for the purpose of placing a band
or strip provided with adhesive material around the frame i before the latter is
allowed to descend a cutting device such as being arranged automatically to cut
off the length of strip placed around the frame from the web substantially as
described and illustrated in the accompanying drawings.
2. In a machine such as specified in Claim 1 the device connected with the
chain mechanism of the frame-spindle e timed so as alternately to co-operate with
that mechanism its object being to convey the ready cardboard boxes as they drop
on to the bed-plate out of the machine and consisting of a frame or carriage y
attached on one side to a chain to passing over a drum or pulley secured to a
shaft t and on the other side to another chain w² to which a counterweight is secured
its operation being such that as the frame-spindle rises the frame or carriage moves
forward and as the spindle descends the frame or carriage is drawn back substantially
as described and illustrated in the accompanying drawings.
Dated this 7th day of February 1893.
W. P. THOMPSON & BOULT,
Agents for the Applicant.