A Machine for Removing Paper from and Placing it in Glazing Plates Used in Paper Making.
Year: 1887

page_text: Date of Application, 20th Jan., 1887
Complete Left, 21st Nov., 1887
Complete Accepted, 6th Jan.. 1888
PROVISIONAL SPECIFICATION.
A Machine for Removing Paper from and Placing it in Glazing
Plates Used in Paper Making.
I, LOGAN MCFARLANE, of 5 Park Place, Saint Mary Cray, in the County of
Kent, Paper-maker's Clerk, do hereby declare the nature of this invention to be as
follows:-
Hitherto it has been the practice to perform the operation of taking glazed paper
out of a set of glazing plates after having been passed through plate glazing
calenders and of filling the said set with paper ready to be placed in the calonders by
hand.
Now the object of my invention is to provide a machine which will perform the
said operation thereby effecting a great saving in labor, time, and material. For
this purpose I provide a series of platforms arranged in sets or pairs, one platform of
each pair being adapted to be raised and lowered alternately with the other; a
number of tubular standards pass upwards above and between the said platforms
where they carry two tubular arms having suckers of india rubber or the like; the
standards are connected with an exhaust fan whereby a vacuum can be formed so as
to cause the arm to lift or suck up the sheets of paper and plates.
A rotary and upward and downward motion is communicated to the standards and
arms by suitable mechanism, such as by gearing and a cam; the standards and arms
rotate over a fixed tube, one end of which communicates with the fan or blower
whilst the other end is provided with a port which allows air to be drawn in through
the arms when they are over one platform and shuts off the communication when
they are over the next platform. Suitable adjustable guides are attached to the macbine
and serve to keep the paper and plates in proper position upon the platforms, and
means are provided for regulating the extent of movement of the platforms to suit
the thickness of the pile of paper and plates being operated upon so as to ensure the
said piles being brought into contact with the suckers of the rotating tubular arms.
A cock or valve can be fitted to the tubular standards or other part to allow of
shutting off the connection of any one or more of the sets of arms with the fan or
blower when required.

page_text: To make use of a machine of this construction having four platforms, for example,
a set. (or sets) of plates containing the glazed paper from a calendering machine is
placed on one of the platforms and a pile of rough paper is placed on another
platform and the machine being set in motion one of the revolving arms of one
standard will remove a plate from the said set or sets to the next platform; one of
the arms of another standard will then carry a sheet of rough paper from the pile
and place it on the plate; meanwhile one of the arms of the third standard will have
carried the sheet of glazed paper which was covered by the removed plate to the
remaining platform and the second arm of the first standard will have then moved
over the set or sets of plates; the cycle of operations herein before stated is then
repeated, and so on until the set or sets of plates or the pile of rough paper is
exhausted or a pile of glazed paper has to be removed.
1
G. F. REDFERN,
4, South Street, Finsbury, London,
Agent for the Applicant.

page_text: Plates Used in Paper Making.
I LOGAN MCFARLANE, of 5 Park Place, Saint Mary Cray, in the county of Kent
Paper-maker's Clerk, 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:-
Hitherto it has been the practice to perform the operation of taking glazed paper
out of a set of glazing plates, after having been passed through plate glazing
calenders, and of filling the said set with paper ready to be placed in the calenders,
by hand. Now the object of my invention is to provide a machine which will
perform the said operation, thereby effecting a great saving in labor, time and
material.
For this purpose I provide a series of platforms adapted to be raised and lowered;
a tubular standard passes upwards above and between the said platforms and carries
three tubular arms having suckers of india-rubber or the like; the standard is
connected with an exhaust fan or air pump whereby a vacuum can be formed so as
to cause the arms to lift or suck up the sheets of paper and plates.
A rotary motion is communicated to the standard and arms by suitable mechanism,
such as by gearing; the standard and arms rotate over or in a fixed tube or bearing
which communicates with the fan. The tubular arms are each provided with a valve
which allows a vacuum to be produced in the arms when they are over one platform
and shuts off the communication when they are over the next platform. Suitable
adjustable guides are attached to the machine and serve to keep the paper and plates
in proper position upon the platforms, and means are provided for regulating the
extent of movement of the platforms to suit the thickness of the pile of paper and
plates being operated upon so as to ensure the said piles being brought into contact
with the suckers of the rotating tubular arms. The hereinbefore described valves
shut off the connection of the arms with the exhaust fan when required so as to cause
the paper and plates which have been sucked up by the arms to drop off. Or the
said valves can open communication with an air compressor or blower for a like
purpose.
In order to enable my invention to be fully understood I will describe how it can
be carried into practice by reference to the accompanying drawings in which
Figure 1 is a plan of a machine having four platforms and constructed according
to my invention for removing glazed paper from and placing rough paper in glazing
plates used in paper making, a portion being removed from the top of the machine for
the sake of clearness.
Figure 2 is a side elevation partly in section of the machine.
Figure 3 is a detached sectional view of part of the machine and
13:
modified construction of part of the machine

page_text: Similar letters in all the Figures represent similar parts.
a, a', a² and a³ are the platforms which are mounted on pillars b, b, b, b, sliding in
bearings c, c, c, c fixed to standards d, d, d, d and through tables e, e, e, e on the top
of the said standards; the pillars 6 are provided with toothed racks c³, c², c², c² and
are adapted to be raised and lowered in the said bearings by means of weighted
levers ¹¹¹¹controlled by double segments fff one part of each of which
segments gears with one of the racks whilst the other part engages with a pawl g
mounted on a weighted lever h. This lever is provided with a roller which rests on
the periphery of a discj having a depression forming a kind of cam.
The discs of the platforms a², ³ are actuated from the main shaft k through
bevel gearing 1, 1, 1, and spur gearing m, m and the discs ; of the other two
tables a al are actuated by gearing-n, n from the shafts o, o of the gearing m, m.
Each disc carries a pin p which just before the table commences to rise comes
against the tail of the pawl g and trips the pawl out of the ratchet teeth of the
segment, for the purpose hereinafter referred to.
q is the tubular standard passing upwards above the platforms as shown.
T, 1,are the three tubular armis carried by the standard q and connected by a
ring
5, 1, 2 are the suckers of india-rubber or the like attached to the tubular arms r, r²,
respectively and adapted to adhere by suction as hereinafter described to the corners
of the sheets of paper and plates.
201
A to and fro rotary motion is communicated to the standard g, and arms r,
by means of a sliding rack worked from a disc crank on the main shaft by a
connecting rod, the said rack engaging with a spur wheel mounted loosely on the
standard g and gripped between friction discs w, w keyed to the standard as shewn
clearly in Figure 3; one of the discs we can be adjusted by screwing up a nut ..
y is the fixed tube or bearing in which the lower end of the standard 9 rotates, the
said tube or bearing communicating by means of a branch pipe z with the exhaust
fan (not shewn in the drawing), and forming a communication between the tubular
standard
q
and the said fan.
c in figure 2 indicates in section one of the valves with which each of the tubular
arms is provided, d¹, d', d', in figure 1 indicating the casings of the said valves which
latter allow the vacuum maintained in the tubular arms by the exhaust fan to extend
to the suckers s, s', when the tubular arms are in certain positions as hereinafter
described the valves also allow of communication being effected between the
suckers s, s¹, s² and a pipe e¹ leading to a suitable air compressor (not shown in the
drawing).
The valves c are connected by rods f to arms g¹ rigidly connected to one another
and turning loosely on the tubular standard 9 and allow the suckers to communicate
alternately with the exhaust fan and air compressor.
A projection is provided on the ring which projection comes against stops
and serving to limit the rotary movement of the tubular arms to a quarter of a
revolution, that is to say, to stop them when the suckers are in position over the
platforms.
The rack carries pins j and which strike respectively against a downward
projection on one of the arms g¹ when the rack is at one end of its stroke and
against a downward projection m on a shorter arm n' when the rack is at the other
end of its stroke. The arun n¹ is fixed to the boss carrying the arms g¹. By this
means the valves c are actuated at the proper moment to cause a suction or a blowing
off action at the suckers s, s², s².
o, o are the guides adjustably fixed to the tables by screw bolts and nuts, shewn
in dotted lines at p³, p₁, for keeping the paper and plates or paper alone in proper
position upon the platforms a, a, a³, a³. The platforms are formed with slots which
work over the guides o', o' and allow of thein being adjusted as above referred to.
The extent of upward movement of the platforms a, a¹, a², a³ is limited by the
paper or plates coming in contact with the suckers s, s¹, s³.
The platforms are enabled to move upwards to the said extent by the pawls g being

page_text: tripped out of engagement by the pins pas hereinbefore described when the paper
or paper and plates are being placed on or removed from the platforms by the
suckers.
To make use of a machine of this construction the tables being in their lowered
position, a set of plates containing the glazed paper from a calendering machine is
placed on the platform a, a plate being at the top as will be obvious, and a pile of
rough paper is placed on the platform a¹.
The machine is then set in motion and the platforms a, a, a², a³ will be moved
into their raised position, the platforms a, a², a³ being beneath the suckers
S, s¹, s² as
shewn in Figure 1.
Figure 2 shews the raised position of the platforms a, a³.
The valve of the arm will then have opened communication between the
suckers and the exhaust fan and will suck up the top plate from the platform a
whilst the valves c¹, c¹ of the arms 1, 2 will have opened communication between
the suckers s¹, s2 and the air compressor.
The platforms will then descend through the action of the discs as hereinbefore
described and the tubular arms r., will then be moved a quarter of a revolution
by the rack and wheel in the direction indicated by the arrow drawn in full
lines in figure 1, the projection h¹ coming against the stop determining the extent
of movement. The suckers s will by this movement carry the plate referred to over
the platform a².
The rack continuing to move will bring the pin k¹ against and move the arm n¹
so as to reverse the positions of the valves c². During this last mentioned operation
the platforms will have again risen and the suckers & will, by reason of their
communication with the air compressor, drop the plate on the platform a², the
suckers & will at the same time pick up a sheet of rough paper from the platform a¹,
and the suckers 2 will pick up a sheet of glazed paper from the platform a.
The platforms will now again descend and the tubular arms, ², 2 will then move
back in the direction indicated by the dotted arrow in figure 1 until the projection h¹
comes against the stop ².
The suckers s' and 2 will by this movement carry the sheets of rough paper and
glazed paper respectively over the platforms a and a³.
The rack then continuing to move back will by its pin j¹ move the arm g¹ by
means of the projection l¹ so as to bring the valves c¹ into the position first herein
referred to.
The platforms by this time will again have risen and the suckers s will pick up
another plate from the platform a and the suckers s¹ and s will drop their sheets of
paper onto the platforms a² and a³ respectively. The cycle of operations above
described is then repeated and so on until the set of plates and paper on the platform a
and the pile of rough paper on the platform a² are exhausted when the said platforms
must be re-supplied and the pile of glazed paper on the platform a³ and the set of
plates and rough paper on the platform a² ready to be glazed, must be removed.
For
Figure 4 illustrates a modified form of sucker which will adapt itself to the
unequal thickness of the corners of a set of plates and paper or pile of paper.
this purpose the sucker is formed with a spring mouthpiece q'.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is
1. In the manufacture of paper the use of a new kind of machine constructed in
such a manner as to take glazed paper out of a set of glazing plates after the said
paper and plates have been passed through plate glazing calenders and to fill the said
set of plates with rough paper ready to be placed in the calenders.
2. The arrangement of rotating tubular arms carrying suckers adapted to lift and
deposit glazing plates and sheets of paper, substantially as, and for the purposes,
herein before described.

page_text: 3. The mechanism for raising and lowering the platforms and automatically
regulating the extent of movement of the same to suit the varying thickness of the
pile of paper and set of plates and paper, substantially as hereinbefore described.
4. The arrangement of toothed rack and wheel and stops whereby a period of rest
is given to the tubular arms to allow of the valves being operated and the platforms
to rise and fall substantially as herein before described.
5. The machine for removing glazed paper from and placing rough paper between
glazing plates substantially as hereinbefore described and illustrated in Figures 1
and 2 of the accompanying drawings.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London,
Agents for the Applicant.