Improvements connected with Paper Folding Machines.
Year: 1891

page_text: vate of Application, 1st Sept., 1891
Complete Specification Left, 30th June, 1892-Accepted, 30th July, 1892
PROVISIONAL SPECIFICATION.
Improvements connected with Paper Folding Machines.
I CHARLES THOMAS WATSON of 76 High Holborn, London, Engineer do
hereby declare the nature of my invention to be as follows:-
The object of my invention is a novel arrangement of the operating parts of
news or book folding machines.
For the purpose of my invention I arrange a couple of rollers just below the top
board at the crevice where the sheet of paper first enters for folding purposes, the
descent of the paper for the first creasing being effected by a blade projecting
downwards from arms operated from a side shaft and cams. The sheet thus folded
is gathered on tapes which travel to the opposite side of frame, where another
rocking blade is fitted for the second or transverse creasing, tapes being employed
for carrying the sheet to a third blade and so on in like manner for as many
creasings and foldings as may be necessary the foldings being at right angles to
each other.
If a wrapper or outside cover has to be put on, the cover is fed in from a separate
board by tapes and is laid upon the tapes of the last folding operation so as to be
under the last folding in which condition the paper in a folded state and the
wrapper move together to the last blade which releases the book section or the
covered pamphlet as the case may be for after collection.
All tapes are endless and one end is controlled by revolving rollers the other
ends being on bobbins free to run on axle pins which project from slotted slides
and C shaped forks. These forks may be made to receive transverse slides to
allow of the tapes being moved. These slides to be adjustable on frame of
machine by provision made for that purpose so that all tapes may be kept taut.
Smoothing bars or racks are arranged between the tapes to prevent deflection of
the paper while passing along and to prevent sheets from being raised off the face
of tape upon which they travel, it may however be gathered by tapes travelling
outward to the point where it is delivered downwards by two rollers or slides on to
a board provided with two sides which are adjustable, a square blade is inserted
betwixt those sides at the end where the book or folded paper is received; this
blade is operated in a longitudinal manner by cam and levers or eccentric thus
propelling the last folded section forward to a point whereby each last delivered
paper or section is retained by gripper fingers or rack moved by springs or lever so
that the last delivered book is freed from each succeeding descending one.
The inserted blade may be moved upon parallel rods or slides.
The folded paper or book may be delivered flat or on the last folded edge
forming the back opposite end provided with movable stop.
Two rotating cutters or trimmers may be attached to rollers carrying tape
working in plate to form small table or other device, to trim or sever the edges of
paper, cutters to be adjustable, these may be placed at second or subsequent folds.
Dated this 1st day of September 1891
H. GARDNER,
Patent Agent, 166, Fleet Street, London,
Agent for the said C. T. Watson.

page_text: COMPLETE SPECIFICATION.
Improvements connected with Paper Folding Machines.
I, CHARLES THOMAS WATSON," of 76 High Holborn, London, Engineer, 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:
The object of my invention is a novel arrangement of the operating parts of
news or book folding machines, and consists :-
1st. In arranging one, two, or more rollers just below the top or feed board ät
the crevice where the sheet of paper first enters for folding purposes, said rollers
are used in combination with what are hereinafter-termed grip rollers fixed upon
rocking levers projecting from a shaft operated by any suitable system of cam
appliances from the main shafts. If a wrapper or outside cover has to be put
on, a similar arrangement to that above described is fitted to the wrapper feed
board..
2ndly. Controlling the endless tapes at one end by rollers and at the other end
by bobbins free to revolve on axle pins which project from C or other suitable
shaped slotted forks, said slides being adjustable on the frame of the machine, so
that all the tapes may be kept quite taut.
i
3rdly. In the improved method of arranging the "front marks."
My invention will be clearly understood upon reference to the annexed sheet of
drawings in which
Figure 1 is a diagramatic side view of the improvements and manner of applying
same.
W
Figures 2 and 3 are side and plan views respectively of the adjustable bobbin
slides..
134
Figure 4 is a perspective view showing the general arrangement.
Figures 5 and 6 are perspective and plan views respectively. of an arrangement
used upon "point" machines.
In carrying my invention into practice, I arrange beneath the top or feed
board A, one, two, or more rollers or drums B according to the width of the
machine, said rollers B are supported in bearings, and revolved by gearing in any
suitable manner from the main shafts. Above the rollers B are arranged the grip
rollers C held in the fork of the rocking levers D, said levers are fixed upon the
shaft E, to which is imparted a semi rotary movement in any suitable way.
F, F, are the "front marks" which are of curved formation fixed by screw's,
or other means to the shaft G. The tapes H are endless and are passed around
the drums B over the pullies I to the opposite side of the machine, thence under
the bobbins J, and around the bobbins K, said bobbins J, K, revolve upon axle
pins fixed to the horns L, which may be slotted, as in Figures and 3, but are
preferably mounted upon cranked pins L' capable of being moved out or in to
tighten or slacken the tapes and rigidly held in position by set screws M.
N, N, are the first creasing rollers between which the paper is drawn for folding
purposes. The endless tapes which conduct the paper to the rollers for the second
creasing, are stretched upon the bobbins Q of the slotted slides R, said slides R
may have two bobbins arranged in the same manner as the bobbins J, K, of
Figure 1.
The modus operandi is as follows;-
The paper to be folded is laid upon the top board A. over the drums or rollers B
and against the front marks F, F, which at proper intervals recede or are turned
down by means of suitable levers and cams operating the shaft G. The rocking
levers Ď and grip rollers C then descend and bear upon the paper, and cause same
to travel forward upon the tapes until stopped by the gauges S, Figure 4. The
creasing is effected by a blade T projecting downwards from arms U operated from
a side shaft in the ordinary manner and so on to any number of creasings.

page_text: If a wrapper or outside cover is to be put on, it is fed in from the board V upon
a drum, or roller B' and gripped by rollers C₁ of a rocking shaft E' in the same
manner as described with reference to the paper feed.
In that class of apparatus known as "point" machines in which "front marks"
are dispensed with, I prefer to use the device shown in Figures 5 and 6 in which
the pin a is screwed into a roller b and held in a vertical position by the tension
of a spring c, so that when the paper is drawn in for the crease, it gives, or is
drawn over by the paper in the direction in which the paper is moving and
thereafter regains its original position by means of the spring c before mentioned,
whereby the liability of tearing the paper is obviated.
Having now particularly described and ascertained the nature of this inven--
tion and in what manner the same is to be performed I declare that what I
claim is :-
1. The combination of drums or rollers with rocking levers and grip rollers in
connection with feed boards of paper folding machines in the manner and for the
purpose as described and substantially shown with reference to Figure 1 of the
annexed drawings.
2. In paper folding machines the arrangement of drums or rollers B, rocking
levers D, grip rollers C, front marks F all for the purpose and operated
substantially as described.
The means of and appliances for tightening the tapes of paper folding
machines as described and shown with reference to Figures 1, 2, and 3 of the
annexed drawings.
4. In paper folding machines, a spring controlled point a substantially as shown
and described with reference to Figures 5 and 6 of the annexed drawings.
The 30th day of June 1892
H. GARDNER,
Patent Agent, 166, Fleet Street, London,
Agent for the said Charles Thomas Watson.