Improvements in apparatus for scoring cardboard or other like materials
Year: 1886

page_text: We LEONARD GUNN of Banbury in the County of Oxford, Miller, and JOHN PERRY
of 66 East Street, Grimsbury in the County of Northampton, Carpenter and Bee
Hive Manufacturer, do hereby declare the nature of this invention to be as follows:-
Our Invention of Improvements in apparatus for scoring cardboard or other like
materials has reference to the use for the purpose of a single circular knife or discoidal
cutter with double cutting edges, or two circular knives or discoidal cutters arranged
vertically side by side, and each having a single cutting edge, the said knife, knives or
cutters being carried in a suitable holder or holders so as to be free to revolve as the
cardboard or other like material is fed against and beneath or past the two cutting
edges.
The cardboard or other like material thus receives two parallel longitudinal scorės
or indentations, the material left between which is cleared out or removed and the
requisite finished shape of score obtained, by means of a revolving disc or body either
serrated on its periphery or provided with knives or cutters of the desired shape on
the cutting edge, arranged behind the primary scoring knife, knives or cutters as
described in the provisional specification accompanying an application for a patent
made by one of us, the said John Perry dated the 21st October 1886, No. 1346986,
or we may substitute for the revolving disc or body a stationary or non-rotating
cutter of a plough or other suitable shape similarly situate behind the primary scoring
knife, knives or cutters.
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071
cow 1000
THS. J. HANDFORD,
50, Bedford Row, London, W.C.,
Agent.

page_text: COMPLETE SPECIFICATION.
Improvements in Apparatus for Scoring Cardboard or other like
Materials for the Manufacture of Boxes or Receptacles or other
like Purposes.
We LEONARD GUNN of Banbury in the County of Oxford, Miller and JOHN PERRY
of 66 East Street, Grinsbury, in the County of Northampton, Carpenter and Bee
Hive 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 :-
Our Invention of improvements in apparatus for scoring cardboard or other like
materials has reference to the use for the purpose of a single circular knife or
discoidal cutter with double cutting edges or two circular knives or discoidal
cutters arranged vertically side by side and each having a single cutting edge, the said
knife, knives or cutters being carried in a suitable holder so as to be free to
revolve as the cardboard or other like material is fed against and beneath or past the
cutting edges.
And in order that the said invention may be perfectly understood we shall now
proceed more particularly to describe the same and for that purpose shall refer to the
several figures on the accompanying sheet of drawings, the same letters of reference
indicating corresponding parts in all the figures.
Figure 1 of the accompanying drawings represents a side sectional elevation
of a portion of an apparatus for scoring cardboard or other like materials, with our
invention applied thereto. Figure 2 is a sectional elevation of the same taken at
right angles to Figure 1. Figure 3 is a side elevation illustrating a modification (the
connection with the framing is not shewn in this figure), and Figure 4 is a detail
hereinafter referred to.
A is the circular knife or discoidal cutter with double cutting edges a a or these
cutting edges may each constitute a separate circular knife or discoidal cutter, the two
knives or cutters being arranged vertically side by side. This multiple knife or cutter
is carried in a holder B so as to be free to revolve, and the holder is adapted to a
block C fitting in a suitable recess in the main frame D and is provided with a
screw E by the act of turning which in one direction or the other the holder and con-
sequently the multiple knife or cutter will be raised or lowered as required. F is the
usual revolving roller of the apparatus which conducts the cardboard or other like
material 6, supported and guided by a suitable table, against and beneath or past the
cutting edges a a of the multiple knife or cutter in the direction indicated by the
arrows.
We have found it desirable in preparing the cutting edges of this multiple knife or
cutter to employ a tool with a roughened surface such for example as a file which is
held against the sides of the cutting edges while the knife or cutter is caused to
revolve in a lathe or other similar apparatus. This gives the requisite finish to the

page_text: cutting edges to adapt them to the work for which they are intended. It is not
essential, however, that a hand tool should be used in preparing the cutting edges, as
it is obvious that the like operation may be performed by automatic means.
We find in practice that by the use of our invention, when the cardboard or other
like material 6 is conducted against and beneath or past the cutting edges a a, and
the multiple knife or cutter is thereby caused to revolve, not only is the cardboard or
other like material grooved but the strip 6' of material is automatically taken out,
leaving the desired clean groove or recess without the use of a plough behind or
similar subsidiary cutting instrument. In order, however, to prevent the strip 6¹
from following round the cutting surfaces, it is found advantageous to employ a
clearer shewn in detail front elevation in Figure 4, consisting for example of a
piece of sheet metal, which may be carried on a separate holder B2 arranged and
adjusted in a similar manner to the holder B as shewn in Figure 1, or directly attached
to the holder B as shewn in figure 3, the clearer being in either case caused to enter
between the cutting edges and clear or free them of the strip of material which is
conducted out beneath the said clearer. It is sometimes found convenient to provide
the holder carrying the clearer with rollers d (Figure 1) situate one at each side of the
multiple knife or cutter and arranged to press upon the cardboard or like material
being scored.
Although we have described and shewn the multiple knife or cutter as consisting of
two vertical cutting edges either on one knife body or on separate knife bodies, it is
obvious that three or more vertical cutting edges may be used without departing from
the principle of our Invention.
It will be obvious that it is not essential that the multiple knives or cutters should
be constructed of the precise shape shewn in the drawings as any other suitable form
may be adopted.
'
Having
now particularly described and ascertained the nature of our said Invention,
and in what manner the same is to be performed, we declare that what we claim is:
In apparatus for scoring cardboard or other like materials, the employment of
multiple vertical circular knives or cutters, substantially as herein before described.
Dated this 6th day of April 1887.
THS. J. HANDFORD,
50, Bedford Row, London, W.C.,
Agent.