Improvements in Paper Folding Machines.
Year: 1889

page_text: Date of Application, 13th July, 1889
Complete Specification Left, 1st Oct., 1889-Accepted, 16th Nov., 1889
PROVISIONAL SPECIFICATION.
Improvements in Paper Folding Machines.
I, ROBERT CUNDALL, of the firm of Robert Cundall and Sons, of Shipley, York-
shire, Machine Makers do hereby declare the nature of this invention to be as
follows:-
My invention has reference to machines employed for folding paper such as note
paper and paper used for pamphlets and other purposes, the object of my inven-
tion being to fold the paper so that it will not open out of itself when laid down,
and this I accomplish by giving the folded paper an additional nip at the folded
edge only.
In carrying out my invention I employ any ordinary form of paper folding
machine having nipping rollers, and under these nipping rollers, or in any other
suitable position I place an additional pair of nipping rollers, but these rollers are
countersunk or the diameter is reduced except at a given point which projects, the
projecting part of one roller, meeting the projecting part of the other roller as the
two rollers revolve so that as the folded paper leaves the ordinary folding rollers
she said folded paper drops or is conducted with its folded edge between the
additional pair of rollers which are timed to receive the folded edge of the paper
for the purpose of giving it an additional uip or squeeze, but only at the folded
edge, which I find, so flattens the paper as to prevent the open edges from separating
or opening out.
Dated this 12th day of July 1889.
TASKER & CROSSLEY,
Halifax, Agents.
COMPLETE SPECIFICATION.
Improvements in Paper Folding Machines.
I, ROBERT CUNDALL, of the firm of Robert Cundall and Sons, of Shipley, York-
shire, Machine Makers, 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 :-
My invention has reference to machines employed for folding paper in sections,
such as note paper, and paper used for account books and other purposes, the object
of my invention being to fold the paper so that it will not open out of itself when
laid down, and this I accomplish by giving the folded paper an additional nip at the
folded edge only.
In carrying out my invention I employ any ordinary form of paper folding
machine having nipping rollers or otherwise, and under such nipping rollers, or
under the striker," I place a pair or an additional pair of nipping rollers, but
these rollers have a projecting knuckle or are countersunk so as to reduce the
diameter except at a given point which projects, the projecting part of one roller
meeting the projecting part of the other roller as the two rollers revolvo so that
as the folded paper leaves the ordinary folding rollers, or "striker," the said folded
paper drops or is conducted with its folded edge between the additional pair of
rollers, which are timed to receive the folded edge of the paper for the purpose of
giving it an additional nip or squeeze, but only at the folded edge, which, I find, so
flattens the paper as to prevent the open edges from separating or opening out.
Such being the nature of my said invention, 1 will now make reference to the
accompanying sheets of drawings illustrative thereof, wherein Fig. 1 is end elevation
of such parts of a paper folding machine as is necessary to shew the application of

page_text: my invention; Fig. 2 cross-section of same, and Fig. 3 plan view. A represents a
portion of the framework of the machine, B a pair of ordinary nipping or folding
rollers, the paper to be folded being inserted between the said nipping rollers by
means of the striker C working upon the fulcrum Darranged in the ordinary manner.
My improvements are shewn by letter E, which comprise an additional pair of
nipping rollers of peculiar form, the axles of which are carried by the square blocks F
supported in a slot or opening in the framework, such blocks F being forced
together so as to give the necessary nip to the rollers, by means of steel springs H,
the effect of which will be well understood by mechanicians; but the use of springs
is not absolutely necessary, as the nip of the rollers can be obtained by screws or
other means. The additional pair of nipping rollers are driven by spur gearing L,
as shewn in plan view Fig. 3. It will be understood that the striker inserts a
number of sheets of paper between the first pair of nipping rollers B, and that such
sheets of paper, shewn at J, will drop with their folded edges between the additional
nipping rollers F, which are so timed in their rotation that the projecting parts a of
the said nipping rollors are ready to receive the folded edges just as they arrive from
the upper rollers B, or from the striker, consequently the said papers are nipped or
squeezed, but only at the folded edges, which so flattens the paper as to prevent the
open edges from separating or opening out.
In Fig. 4 I have shewn that the additional pair of nipping rollers, instead of
working within blocks F as already described, may work between caps or pe estals K
and drawn together by steel spiral springs I
I wish to observe that the extra nip given to the folded edge of the s: .ets of
paper as above described is accomplished without glazing or glossing the paper, as
would be the case if the nipping surfaces of the rollers were more extende,
the extra pair of nipping rollers were of equal diameter.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :
In paper folding machinery, the employment of rollers such as E for nipping or
squeezing the edges of folded sheets of paper.
Dated this 30th day of September 1889.
TASKER & CROSSLEY,
Halifax, Agents.