IMPROVEMENTS IN AND RELATING TO FEEDING PAPER TO PRINTING AND OTHER MACHINES, AND MECHANISM EMPLOYED THEREFOR."
Year: 1881

page_text: LETTERS PATENT to John Henry Richardson Dinsmore, and Frederick Hoyer,
both of Liverpool, in the County of Lancaster. For an Invention of
"IMPROVEMENTS IN AND RELATING TO FEEDING PAPER TO PRINTING AND
OTHER MACHINES, AND MECHANISM EMPLOYED THEREFOR."
PROVISIONAL SPECIFICATION left by the said John Henry Richardson
Dinsinore and Frederick Hoyer at the Office of the Commissioners of Patents
on the 30th November 1881.
JOHN HENRY RICHARDSON DINSMORE and FREDERICK HOYER both of Liverpool,
in the County of Lancaster. "IMPROVEMENTS IN AND RELATING TO FEEDING
PAPER TO PRINTING AND OTHER MACHINES, AND MECHANISM EMPLOYED
THEREFOR."
Our Invention relates to improvements in and relating to feeding paper to
printing and other machines and mechanism employed therefor and consists,-
First in improvements in shape and construction of lifting exhaust chamber for
letter press printing and litho and for ruling machines.
Second in improvement and simplification in method of connecting said main
lifting exhaust chamber with the tube from the fan or exhauster.
Third in improved arrangements for raising main exhaust or suction chamber
into position for delivering the sheet of paper adhering to it on to the front or
feed table.
Fourth in improvement of under exhaust or suction chamber.
Fifth in improvement in construction of valves controlling the suction from
under suction chamber and suction tubes connected with the feed table and
connexion of same with fan.
Sixth in an arrangement by which after the lifting suction chamber has sucked
up a sheet of paper against its under surface any second sheet adhering to auch
first sheet may be detached and brought under the control of the under suction.
Seventh in arrangements whereby the separate currents of air from the fan

page_text: •
or exhauster may be regulated singly or by one, valve acting upon th
collectively.
Eighth in improvement in construction of front or feed table.
Ninth in improvement in arrangement of the tapes used for conveying the
sheets of paper down the feed table to front adjusters, and the utilization of certain
of the pulleys giving motion to the same for drawing off the paper from the lifting
chamber.
Tenth in an arrangement whereby the tapes moving upon the feed table are
absolutely arrested in their motion for a certain interval so that the sheet of
paper resting on them may remain undisturbed between period of final adjustment
and the time of being removed by the action of the machine it is being fed to.
Eleventh in improvement in shape of cam working the separator or wiper.
Twelfth in improvements in parts of the separator or wiper.
Thirteenth in an improved device for assisting in the separation of the sheets
of paper when in pile on rear table, and preparing them for the action of the
wiper.
Fourteenth in an improvement in the back gauge on the rear table.
Fifteenth in a device for controlling the back edges of the sheets of paper when
they are being acted on by the wiper.
Sixteenth in an improvement to the rear table by which the paper is caused to
lie in a better position for being acted on by the separator or wiper.
Seventeenth in an improvement to the rear table whereby any rocking motion
upon the lifting screws conveyed to it by the action of the separator may be
prevented, so that the regular rise of the table under the action of the automatic
arrangement may not be interfered with.
Eighteenth in an arrangement whereby wo separate the back edges of the
sheets of paper in the pile as well, and at the same time as the front edges are
operated upon by the front, separator.
Under the first part our improvements consist in making the main exhaust or
suction chamber in one cylinder only, with the under side partially cut away and
the space filled in with a flat sheet of metal, a certain portion of which is perforated,
a flange being left to project from either side of the cylinder for the carrying of
cutting-off slides for diminishing the area of the perforated part when sinaller
sheets of paper have to be operated upon. We also provide a valve arrangement
at one end of the cylinder, so that in case of need the suction upon the paper may
be lessened. For ruling machines we increase the perforated area round to the
front and upper front of the cylinder so that the suction may act on the paper, so
as to enable us by means of tapes working upon rollers of convenient size and
position to cause the paper to work round to the top of the cylinder and to be
there fed on to endless tapes or threads, and by them conveyed to the rulling
machines or any other machine requiring a quick and continuous feed.
Under the second part our improvement consists in connecting the tube from
the fan with the tube from the main suction chamber by means of a collapsing
tube made of leather or other suitable material which opens and closes like the
folding inembrane of an accordion," the folding being regulated by metal or
wooden rings being fixed inside said tube at suitable intervals. By this mode we
save making accurately sliding tubes and save also in waste of suction power.
"
Under the third part our improvement consists in an arrangement for moving
the said main suction chamber upwards and forwards, causing it to move in about
a quarter circle by means of two racks and pinioned-levers working upon them,
the racks having motion conveyed to them by suitable cams working upon the
main shaft.
Under the fourth part our improvements consist in attaching to the face of the
under suction chamber next to the pile of paper upon the rear table a certain
number of ribs of wood or metal whereby the paper is kept off from the face of
the under suction chamber such ribs running the whole depth of the chamber, and
by this meaus open space is secured for the down draught created by the under

page_text: suction chamber to work and act upon the paper always to the full degree arranged
for and calculated upon.
Under the fifth part our improvements consist in connecting the under suction
chamber and the suction tubes to the feed table with an inter-mediate chamber
opening into the tube from the fan; this by preference we make in a cylindrical
form and working in it we fit as closely as possible another cylinder with the
requisite openings to throw open at the proper time a passage for the air to be
drawn by the fan from the respective parts aforesaid, the opening and closing of
these passages being effected by the action of a cam working the inner cylinder by
means of a lever working by means of a roller upon the cam. Or if desirable we
make direct and separate passages of communication between the fan tube and the
under suction chamber and the front suction tubes.
Under the sixth head our improvement consists in conveying from the vomitory
of the fan a portion of the air expelled forwards by suitable tubes up to the top
of the under suction chamber and along the width of it we place smaller tubes
with mouth pieces, so fixed that the currents of air issuing from them blow directly
and strongly on to the edge of the sheet of paper which has been sucked up by
the main exhaust chamber preparatory to its being raised and fed to the front
table, the blast being controllable elsewhere to suit the consistency of the paper.
By this means we secure the removal of any second sheet which by the action of
the suction through the fibres of the first sheet or by cohesion may have been
picked up from the pile; also as the air from the blowing tubes floats off such
sheet, which then comes under the influence of the under suction and settles down
on to the pile again.
Under the seventh part our improvements consist in placing a shut off valve in
the tube from the fan worked by hand with a scale marked on the outside of the
tube and an index finger connected with the valve moving on the scale which is
marked off to show the degree of obstruction to put on the air passage by the closing
to of the said valve for the lighter kinds of paper.
Under the eighth part our improvement consists in simplifying the feed table
by making the same solid instead of with slats.
Under the ninth part our improvement consists in arranging the tapes so that
they pass over pulleys raised sufficiently above the level of the feed table to bring
the upper part of the periphery upon a line with the bottom plate of the lifting
suction chamber they are thus in position to receive the edge of the sheet of paper
upon them as the said chamber brings it forwards and by means of two or more
overhead rubbered rollers we are enabled to utilize certain of said tape pulleys for
drawing off the paper from the lifting chamber. The tapes are brought round
these pulleys and then caused to take an immediate parallel position upon the feed
table by passing under a long roller running along the top end of the feed table;
they then pass down said feed table and are brought round by means of other
pulleys at the other end of the feed table and working on a level with it to the
backside of it, and from thence over another roller or direct on to the pulleys first
nained.
Under the tenth part our improvements consist in an arrangement for stopping
the motion of said tapes after the sheet of paper has been finally "registered" and
lies ready for the working parts of the machine it is being fed to to take it off, so
that the motion of the tapes may not disturb the sheet after this registration We
effect this by cutting away a certain number of the teeth in the driving wheel
working the pinion upon the shaft carrying the first mentioned tape pulleys. Upon
the face of the driving wheel we fix a plate corresponding to and by the part where
the teeth have been cut away the same being above the level of the face and
about / of an inch thick. On the face of the pinion wheel we fix a corresponding
segment of a circle to that on the driving wheel just described, and on the two
wheels revolving one against the other the one segment moves upon the face of
the other and a complete lock is effected and the pinion always positioned to
gear in with the driving wheel when the teeth commence again. All motion

page_text: of the tapes is thus stopped, the time or length of stoppage depending upon the
number of teeth cut away and may thus be regulated to the necessities of the
machine fed to.
Under the eleventh part our improvement consists in forming the cam working
the wiper or separator so as to give it two or three (as determined upon) rubs
backwards and forwards when the separator is in contact with the pile of paper,
and thus securing a better separation of the upper most sheet from the one
next to it.
Under the twelfth part our improvement consists in reversing the position of the
rubber portion so that instead of the edge coming against the surface of the paper
it comes upon the paper as it were back wards, thus giving a more separating push
on the sheet. Or we substitute a piece of tubing instead of the straight piece and
pass the bar of the separator through it; we obtain a rounded and broad surface to
act upon the paper, which may be further increased by running a broad strip of
zinc or tin-plate through the tube as well, the whole being fastened together
by screwing on a bar of iron to the bar of the separator, the screws passing through
top rubber of the tube and through the metal strip into the bar of the separator.
The effect of this form of separator may be further increased by connecting this
tube at one end with the exhaust tube from the fan and then closing the other end
and making perforations in the under part of the said tube, thus a very light
pressure may be given it upon the paper and yet a clinging hold secured to it upon
the top sheet so that less disturbance is given to the under ones, which is an
advantage in more ways than one We further provide a joint where the bar of
the separator is connected with the arm from the lever to allow of a certain degree
of "play" and to reduce the rigidity of action.
Under the thirteenth part our improvement consists in placing in front of the
under suction chamber upon a level with the line the paper is lifted from and so as
to affect the upper ten or twelve sheets, a spindle or rod clothed with stiff hairs or
bristles; we revolve this by suitable mechanisin and the bristles catching the front
edges of the paper agitates them, and so assists the subsequent action of the separator
upon them.
Under the fourteenth part our improvements consist in first in "stepping" the
inner face of the back gauge upon the rear table, we do this either by making
square bottomed grooves lengthwise upon the same or else by "stepping" down as
in the sides of a book case for fixing or easily altering the position of a shelf.
The object of such grooving in the back gauge being to prevent the upper sheets of
the pile of paper when being acted upon by the separator from working down
between the said back gauge and the rest of the pile and so becoming displaced for
the being lifted and fed forward by the main suction chamber.
Under the fifteenth part our improvement consists in further controlling the
displacement of the back edges of the sheets of paper by cutting a perpendicular
groove down the back gauge on the inner side and letting in two brass or metal
plates slightly overlapping groove on either side, we then provido a narrow
strip of wood or light metal with a projecting piece to work in groove or slot
aforesaid. After the paper is placed upon rear table this strip of wood is laid upon
the top sheet and rests upon the back edge being about an inch wide, and it
prevents the paper or aids in preventing the paper from buckling too much at the
back and becoming displaced This device may be made more effective by
serrating the edge with the teeth bent downwards.
Under the sixteenth part our improvement consists in placing on the rear table
upon the front part a broad strip of wood bevelled down on either side to the level
of the table but rising in the middle '/" to 1/8" inch. The front part of the pilo
of paper lying upon this is thus made to present a better angle for the separator
to act upon, and also buckles up more evenly and without "breaking" the paper.
Under the seventeenth part our improvement consists in partially or entirely
overcoming any rocking motion that the rear table might receive upon the lifting
screws under the action of the separator and which rocking motion by causing

page_text: undue action upon the automatic feed to this table, leads to the paper being raised
above its proper level for the main suction chamber to act upon it properly. We
effect this by fixing on the top of one of the brackets of the lifting screws a strong
spring the other end being arranged to rest upon the back edge of the rear table,
a brass plate for it to work on being let into same, this spring only comes into
action when the table has reached a certain heighth at which the rocking motion
begins to be produced, and then as the table continues rising, it presses upon the
back of the table and thus prevents any forward "dip." The other means we
would use would be by putting a bracket upon the table arching over the lifting
screws and by prolonging the shaft of the said screws so as to pass through tho
upper bracket sufficient bearing" would be obtained to over-come the rocking and
to keep the table always steady.
*
Under the eighteenth part our improvement consists in arrangements whereby
we secure the separation of the back edges of the pile of paper as well as the front
edges, when from the size of the sheets or nature of the paper the front wiper does
not properly effect the separation at the back. We effect this, first by resting a
light rod or bar on the paper about mid-way on the sheet, which adjusts itself to
the heighth of the paper. To the supporting bars of the feeder we attach a
horizontal rod on either side, and upon these slide a rod on each, and which can be
dropped if not in use. These two upright rods we connect with a crossbar over
the table and this we steady by suitable supports conveniently placed. From this
cross bar we sling a separator similar in construction to the one in front with such
modifications as may be required. The slings supporting this separator have a
short arm projecting up over the cross-bar, and these are connected with rods to
the levers working the front separator, so that as these work forwards and back-
wards they give a reverse action to the back separator, so that both separators
work to the centre of the sheet, but all conflicting motion to the paper is prevented.
by the rod or bar resting upon it.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said John Henry Richardson Dinsmore and Frederick Hoyer in the
Great Seal Patent Office on the 30th May 1882.
"
JOHN HENRY RICHARDSON DINSMORE and FREDERICK HOYER, both of Liverpool,
in the County of Lancaster. IMPROVEMENTS IN AND RELATING TO FEEDING
PAPER ΤΟ PRINTING AND OTHER MACHINES, AND MECHANISM EMPLOYED
THEREFOR."
Our Invention relates to improvements in and relating to feeding paper to
printing and other machines and mechanism employed therefor, and consists in
improvements on Patents Number 2855, A.D. 1880, and Number 2457, A.D. 1881,
which are,
First in improvements in shape and construction of lifting exhaust chamber for
letter press printing and litho, and for ruling machines.
Second in improvement and simplification in method of connecting said main
lifting exhaust chamber with the fan or exhaust.
Third in improved arrangements for raising main exhaust or suction chamber
into position for delivering the sheets of paper adhering to it on to the front or
feed table.
Fourth in improvement of under exhaust or suction chamber.
Fifth in improvement in construction of valves controlling the suction from the
under suction chamber and suction tubes connected with the feed table, and
connexion of same with fan or exhaust.
Sixth. In an arrangement by which, after the lifting suction-chamber has sucked
up a sheet of paper against its under surface any second sheet adhering to
such first sheet may be detached and brought under the control of the under
suction.
'
Seventh an arrangement whereby the separate currents of air to the fan or
exhaust may be regulated singly, or by one valve acting upon the whole
collectively.
Eighth in improvement in construction of front or feed table.
Ninth improvement in arrangement of the tapes used for conveying the sheets
of paper down the feed table to front adjusters, and the utilization of certain of
the pulleys giving motion to the same for drawing off the paper from the lifting
chamber.
Tenth in an arrangement whereby the tapes moving upon the feed table are
absolutely arrested in their motion for a certain interval, so that the sheet of paper
resting on them may remain undisturbed between period of final adjustment
and the time of being removed by the action of the machine it is being
fed to.
Eleventh in improvement of shape of cam working the separator.
Twelfth in improvements in parts of the separator or wiper.
Thirteenth in an improved device for assisting in the separation of the sheets
when in pile on rear table and preparing them for the action of the wiper.
Fourteenth in an improvement in the back gauge upon rear table.
Fifteenth in a device for controlling the buck edges of the sheet of paper when
it is being acted on by the separator or wiper.
Sixteenth in improvement to the rear table by which the paper is caused to lie
in a better position for being acted on by the separator.
Seventeenth in an improvement whereby any rocking motion upon the lifting
screws conveyed to it by the action of the separator may be prevented.
Under the first part our improvement consists in making the main suction or

page_text: lifting chamber in one cylinder, the air passages being slots cut in the periphery
about two inches long by quarter inch broad, conveniently spaced one from the
other, supplemented by other smaller holes about two inches further round, the
object of these smaller air passages being still to hold the sheet in position upon
the cylinder, when from the nature of our design the larger air passages no longer
control the sheet. For ruling machine, or other machines requiring a rapid feed,
we increase the perforated area half round more or less the cylinder so that by
means of tapes or endless bands passing round the face of the cylinder but just
kept off it by means of small rollers or other suitable means, and the tapes then
passing round another roller to the rear, we can cause the sheets of paper to be
sucked up against the tapes, and the tapes being given motion from the rear roller
the sheets may be carried up the face of the suction lifting cylinder into a overhead
position, and then carried onwards by the tapes to the rear roller, and from thence
delivered to the machine being fed. The lifting exhaust chamber may be made
partially cylindrical, one side being shaped so as to project out some what from the
circular form, and the space thus left filled in with a flat plate, a certain portion of
which is perforated, such plate being about three or four inches wide, or more or
less, according to the size of the paper, the cylindrical part being about four inches
more or less in diameter. The edges of the flat plate may project beyond the edges
of the lifting chamber, so as to form flanges, over which cut off slides may work so
as to concentrate the suction when smaller sheets are lifted.
Under the second part our improvement consists in connecting the exhaust
lifting cylinder with the short tube from the exhaust or fan first by an over-arching
air-chamber, which we form as follows:-We fix or solder a flanged ring on to the
end of the lifting chamber, and into the open end of the cylinder, we fix two or
more rods or bars carrying another flanged ring, so that the two rings are four
inches more or less according to size of machino apart, but before fixing or solder
the bars to the lifting cylinder we slip on to the two fixed flanged rings, which are
accurately turned, two loose flanged rings which work on the fixed rings. On the
two revolving rings we solder a strip of metal half round, leaving the ends of the
strip projecting upon either side, so that they may form two sides of the over
arching air chamber We then fill up suitably the other two sides and top left,
open of course to an unequal degree on the side to over-arch to the side next the
cylinder, and then to this over-arching tube we fix in another shorter tube, and to
this we attach our collapsing tube, which we form as follows We make a tube of
suitable material, such as leather or stout canvass, and fix inside rings or hoops
made of wire at certain intervals, stretching the tube over them, so that the
leather tube between each ring is more or less contracted, so that when pressed end
to end the tubo collapses till one ring nearly rests upon the other, as in an
accordion or bellows, and yet the passage for the air remains unimpeded. The tubo
thus formed automatically lengthens or shorts, or allows of a swaying motion
being given to any portion of the machine it is attached to without any
complication of inter sliding tubes requiring very accurate fitting and involving
more or less air wastage. Wo do not confine our use of a tube thus formed to
this one portion of our work but employ it where we find it advantageous to
use it.
Under our third part we employ two rack levers in connection with two
pinioned levers working into the rack-portion of the first named levers, one end of
the rack lever being slotted vide Figure 3 The rack-lever works against the
cheeks of the frame the slotted end passing over the main driving shaft and the
rack-end resting on a stud provided with friction roller suitably placed. The rack-
lever is provided with a stud 1 provided also with a friction roller which works
against a cam 2 see Figure 3, keyed on to the main driving shaft of the machine
The pinion lever 3 is attached to the end of the lifting chamber V, the pinion
portion of it resting in the rack of lever + As the cam 2 presses against the stud 1
the rack lever is forced forwards and this forces the pinion lever to partially rotate
and the back part of the lifting chainber V being prevented from falling backwards

page_text: by means of an up right rod 5, worked by lever 6, the cylinder is compelled to
take a movement describing the part of an are thus rising upward and forward.
Then as the cam 2 continues to rotate till the rack lever loses the support given it
owing to the shape of the cam the weight of the lifting cylinder forces it back-
wards as the can recedes till the lifting cylinder resumes its first or picking up
position. The lever 6, which holds the upright rod in position, is also slotted at
the further end, and works over the main shaft of the feeder and it carries on it
at a suitable position a stud 7 provided with a friction roller This stud 7 works
against another cam 8 keyed on to the main driving shaft of the feeder the cain
being so shaped as to allow the lever 6 to be forced back in its slott the effect of
this is to allow the upright rod 5 to slope inwards being caused to do so by the
weight of the lifting cylinder V which then tilts up in front and thus the edge of
the sheet of paper which it has just picked up when this drop backward occurs is
lifted some two or more inches from the edge of the under sheet and thus when
the lifting action of the rack lever comes into play the vaccuum which ensues
upon the rising of the sheet attached to the lifting cylinder is done away with
more or less and any electrical attraction excited by the upper sheet as it moves
off' upon the under ones is diminished and this electrical attraction in some paper
is very strong For over coming this vaccuum and electrical attraction we employ
the following modification of this arrangement we employ two upright levers H,
see Figure 2 pivotted on to two brackets, one upon either of the supporting or
foundation bars of the feeder. Between these two upright levers we sling the
lifting cylinder V which is free to revolve upon two pivots fixed in the upper ends
of such levers. These levers are each connected with a side lever slotted
longitudinally at the further end and having a cross slot suitably distanced from
the end attached to upright levers. The slotted ends of these sile levers work
upon two studs suitably placed in the two cheek plates, the studs being provided
with friction rollers, and the levers being kept in position by suitable nuts and
washers. The cross slots pass over two discs D' keyed on to the main driving
shaft, the discs bearing a stud which works in the slots which in certain parts are
so curved as to correspond with the are of the circle that the stud d moves in, so
as to secure two intervals of rest for the lifting cylinder V to pick up and deliver a
sheet of paper to the receiving rollers whilst the stud d moves round such curves
without giving motion to the levers at one or both ends of the lifting cylinder
wo bolt on gearing wheels through which the pivots work free. These wheels 2
gear into a rack Z', which is bent into the arc of the circle the lifting cylinder V
inoves in and which is thus revolved as it is moved forwards and backwards by
the upright levers H The rack may be toothed the entire distance, or such
distance only as will bring the paper into position for delivery to the receiving
roller when the remaining portion may be plain and a locking slide used to allow
the lifting cylinder to be kept in the proper position for delivering the sheet and
for gearing again with the toothed portion of the rack. The rack is supported
upon two brackets, one attached to the cheek of the frame work and the other to
the undersuction chamber bracket. The locking arrangement referred to is here-
after described in our tenth part. With this arrangement we pick up the sheets of
paper from the edge furthest away from the printing or other machine instead of
from the edge nearest thereto as has hitherto been done and by this means we
peel off one sheet from the other instead of dragging it over the other, so that all
difficulty of separating the back portions of the upper sheet from the under one is
done away with and at the same time any vaccuum still arising from the lift of
the upper sheet or any electrical attraction it may cause is harinless, as we have
longer time left us for the action of the separator so that we can wait for the
subsidence of any disturbance before letting the separator start to work. The
movement of the lifting cylinder may be modified at pleasure, or it may not niove
at all but motion given to the paper by endless tapes or bands placed round it as
described in our part number one and by giving such tapes a diagonal motion we
could secure the sheet being registered to the side so that it might be fed direct to

page_text: the grippers of the receiving machine without any feed-table or receiving rollers
being required. As an additional security, and for the proper positioning of the
paper for delivery we employ two other parts in connection with the lifting
cylinder which we will here describe also. From the upper end of the upright
levers H we carry out two short brackets Y Y which carry a roller X over which
and round the lifting cylinder itself we pass endless tapes or threads so that as the
lifting cylinder revolves the edge of sheet of paper adhering to it is thrown off the
cylinder on to the tapes the air passages V passing under-neath whilst the sheet
is still held in contact with the suction through the smaller air passages,
already described. To prevent the air-currents into the passages from
disturbing and disarranging the forward edge of the sheet overlapping roller X we
provide a screen-made of thin sheet brass or other suitable material fixed to a
rod-also attached to the brackets Y Y on the upright cylinders H. and which
is so placed that as the air passages VI pass under the tape roller X it completely
cuts off all disturbing action from the in draught of air into the lifting cylinder
through such air passages.
Under our fourth part we employ suitably shaped pieces of wood or metal to fix
on to the inner face of the under suction chamber to keep the pile of paper about
a quarter of an inch off the air passages so as to give air-space enough for the in
suck to act upon the under sheets to prevent their rising along with the upper
most one. These may consist of magnetized iron or of any metal that is a good
conductor of electricity and through which by passing an electric current by means
of a small battery suitably placed we might counteract the electricity in the paper
the magnetized iron being used for the same purpose.
Under our fifth part our improvements consist in suitably connecting the under
suction chamber O and feed table suction tube with the fan or exhaust.
Under our sixth part our improvement consists in where desirable employing part
of the expelled air issuing from the fan to assist in the separation of the sheets.
Under our seventh part our improvement consists in placing a subsidiary shut-
off valve in the tube from the fan by means of which the air-current in connection
with the lifting cylinder can be regulated and having a scale fixed on the tubo
over which the handle fixed to the end of the shaft which works the valve passes
so as to indicate how far the valve is open. The valve may be arranged to bo
kept fixed at the required angle by means of a spring on the shaft or other suitable
mechanical means.
Under our eighth part we divide our feed table into two parts, one part is a
strip three or more inches in width and fastened on to side frames of angle iron.
This piece carries the side adjusting wiper and through which the tubes from tho
suction tube pass. To the leading edge of this strip we screw a metal plate about
threo inches more or less broad. To the inner edge we fix upon suitable brackets
a small tape roller. The space between this we fill in with another broader piece
of wood bevelled at the edges and shaped to fit close up to the smaller roller just
described and the tape roller. Endless tapes pass over and under this seconed
strip of wood and round the two tape rollers mentioned and upon which the paper
being supplied to the printing or other machine is brought down to the "front lay."
This second strip of wood is also screwed to the side angle frames and carries tho
rod carrying the "smoothers" and holding the side wiping arrangement in position-
This piece may however be dispensed with and two side strips be used instead for
supporting the smoother shaft or rod, the tapes being left open.
Under our ninth part our arrangement consists in passing the endless tapes
mentioned in our foregoing paragraph over pulleys instead of roller which however
may be also employed if desired, such pulleys or rollers being used as receiving
rolier or pulleys also where desirable instead of an intermediate receiving roller.
Under our tenth part our arrangement consists ns follows, In the main-driving
wheel into which works the pinion giving motion to the roller carrying the endless
tapes we cut away a portion of the teeth for a certain space the number of the
teeth being regulated by the interval of rest required to be given to the tapes.

page_text: Upon the outer face of the driving wheel about a quarter of an inch below the
periphery of the portion where such teeth are removed and shaped to the are
of the sinaller circle which such reduced diameter would give, we fix a plate k
about 3/8" more or less thick, each end being shaped semicircularly- On the cor-
responding face of the pinion wheel working into the driving wheel we fix
another plate i about 3/" thick more or less projecting beyond the teeth sufficiently
to come in contact with the plate just described upon the face of the driving
wheel and shaped at the projecting part to correspond to the are described by
the plate k. As the driving wheel is revolved it moves round, taking the pinion
wheel with it until at the position where the teeth are cut away the plate and i
are brought together and work over the face one of the other, a stud-with friction
roller being fixed in face of driving wheel to catch the plate i and guide it into
proper contact with the plate and another stud-also with friction roller upon
it, being provided upon the face of the driving-wheel so as to secure the proper
inter-gearing of the teeth of the two wheels as the plate i leaves the plate, each
stud being so fixed in the face plate of the driving wheel as to guide each corner
of the plate upon the pinion wheel j to catch the semi-circular ends of
the plate respectively. Of course as plate i passes over plate the pinion
wheel is completely locked and no motion is given to the tapes carried by the tape
roller the pinion wheel drives. This arrangement may be applied to other parts
of our machine where convenient when a period of rest is required namely as in
the case of the lifting cylinder V, in which case the rack Z' see Fig. 2 corresponds
to the driving wheel and the gearing wheel z to the pinion wheel j.
Under our eleventh part our improvement consists in forming the cam working
the seperator so as to give two or three rubs to the paper the separator being
drawn back sufficiently each time to allow the rubber portion to be lifted quite off
the pile of paper so to give an entirely fresh contact of the rubber with the pile of
paper so as to give the separator a more certain action in its work of freeing the
upper sheet from any adhesion to the sheets below it at its edge at any rate. If
the separator works backwards and forwards only with each motion but never
leaving contact with the upper sheet, the separation is not nearly so certain as if
the under sheet is adhering to the upper one the chances are that the separator
will simply rub the two together upon the under sheets and no separation will
take place. We show in Fig. 2 the shape of such cam as we propose to employ
but do not confine ourselves to such as some modification as to length of the
separate rubs or the period of rest inust vary with different machines. As a
modification we may employ eccentric pulleys to give separate rubs or motion to
the separator.
Under our twelfth part our improvement consists in so arranging the rubber
portion of our separator that instead of projecting forwards and catching the sheet
and driving it before it on its front edge we either place it in a perpendicular
position with the paper or slant it inwards towards the edge of the sheet. Wo
also further modify the rubber portion by only using two or more separate portions
so held as to slide upon the bar running the width of the table so that they may
be moved to suit the size or position of the shert, being suitably fixed on the bar when
positioned by means of set screws or other suitable means. The rubbers may be
simple short fingers of thick rubber or broader strips of thick sheet rubber single
or double, or doubled together so as to form a loop, the looped part working on tho
paper, or a piece of suitable tubing may be used. As a further modification we
would give the bar carrying the rubbers a rocking or revolving motion when in
working position or constantly, employing in such case a simple single action cam
to move the separator in and out and take the rocking or revolving motion off a
wheel or eccentric suitably worked and carried on shaft or stud fixed in the under
suction chamber brackets in case of picking up from the outer edge of the pile as
we prefer doing in future. The rocking motion could be very simply given to the
rubber shaft by means of a perpendicular lever at one end fixed thereto and
working against a revolving wheel with two or more studs furnished with friction

page_text: rollers, the lever being pressed by suitable means such as a spring against such studs.
Another mode of giving this rocking motion would be by using another cam upon
the cam shaft with four or more or less indenting equal curves and a rod working
in same connected with an upright pin in the rubber shaft or rod.
Under our thirteenth part our improvement consists in using one or more
revolving brushes made of bristles or fine wire, the under-suction chamber being so
constructed in a castelated form for instance as to afford spaces between the suction
holes for the brush to come in contact with the edges of the top dozen sheets or so
of the pile of paper. The rod carrying the brushes would be supported upon
brackets fixed into the rear of the under-suction chamber and driven by means of
suitable pulleys and band off the cam shaft.
Under our fourteenth part our improvement consists in roughening the inner face
of the back gauge of the rear table by stepping saine down as in a book-case for
easily altering the position of the shelves, or in cross-cutting same, as in a file, the
object being to catch the edges of the sheets bearing against such face and prevent
the sheet from riding upwards or downwards behind the pile of paper under the
action of the separator, as it buckles the upper sheets.
Under our fifteenth part we employ a light strip of wood or card-board or metal
to rest upon the back or further edge of the sheet resting against the back gauge
to prevent the sheet from buckling too much against the back gauge and remaining
so buckled so as to leave the leading edge of the sheet too far back for the lifting
cylinder to pick it up properly for delivery to receiving rollers. We arrange for
compensating for the diminishing height of the pile of paper by providing a
projection from such strip to work in a groove or slot of a suitable shape in the
back gauge or by attaching same to such part of the back gauge as may be
arrange to compensate for the rise of the rear table.
Under our sixteenth part our arrangement consists in so constructing the rear
table as to present the leading edge of the pile of paper in such a position as best
suited to the action of the Separator we do this by means raising the height of
this part of the rear table about an inch inore or less it having a square or bevelled
*surface.
Under our seventeenth part our arrangement consists in preventing the rocking
motion that the working of the separator gives to the rear table by means of a
suitable spring, bearing upon same or by continuing the upper shaft of the lifting
screws through two brackets screwed to the upper side of the rear-table.
Having in the before going detailed the nature and construction of our
improvements we will now describe the operation of the machine with the same
applied and the construction of the feeder as we propose to employ for the
automatic feeding of printing machines or other machines to which a feeder so
made could be successfully adapted.
DESCRIPTION OF THE DRAWINGS

page_text: chamber
Figure 10 is an end sectional view of Figure 9
The Drawings are marked with letters and figures of reference corresponding
with those in the following explanation, and like letters and figures are used to
denote the same, cr corresponding parts in the various views.
The Drawings show those parts of our Invention, which we consider most
essential. The other parts being sufficiently described under the various heads of
the Specification.
In the Drawings, A. A are the bars for the foundation and are constructed
suitably to rest upon the projecting frame work of a printing machine to the rear,
and upon these bars all our work is supported excepting the fan or exhaust (which
stands now upon the floor) and one or two minor parts B B are the two checks
or side franies and are bolted to the bars A A carrying in suitable positions
the driving shaft C and shafts carrying the tape roller D and receiving roller E
and the over-head pulleys F which work upon the receiving roller E. Gare
right and left hand brackets also bolted to bars A A respectively and carry the
upright levers H H and the shaft carrying the ratchet wheel I and the bevelled
wheels K below the rear table for automatically raising the said table as the
heighth of the pile of paper diminishes by means of the lifting screws-working
through the female screws-which carry Hanges on to which the rear table L is
fastened the said male screws being held in position by means of the brackets M,
also bolted to the bars A A or to the foot of the brackets G. N N are brackets
at the furthest end of the bars A A and carry the under suction chamber into
which also such chamber shuts on its being attached to said brackets N N by
means of pins or pivots P P upon which the under suction chamber moves as
upon hinges and there are taper pins to keep it in position when up. The
end pieces of such under sction chamber Q being provided with suitable
projections for carrying the separator cam shaft R and the levers S which
are conveniently jointed for actuating the separator rod T carrying the rubber
pieces U U. V is the lifting suction chamber or cylinder with over-arching
air box W slung between the upright levers H working upon pivots-passing
through the upper end of said levers H. X is a roller carried upon two short
brackets Y are projecting from levers Hand V' tapes or threads passing over
roller X and round lifting cylinder. V is a scre or shield supported upon a
rod fastened to either bracket Y. V" are the main air passages into the exhaust
lifting chamber V and V are subsidiary ones for sustaining the sheet of paper
being carried forward by the lifting chamber after the main suction holes V have
passed behind the screen cuts off the suction upon the paper from these as they pass
behind roller X. Z are two gearing wheels bolted on to either end of the lifting
cylinder V and gear into racks Z' bracketed between cheeks B and brackets N in
a suitable manner. a is the tube connecting the air box W with the fan or
exhaust. bb are two side levers working in a horizontal position, being attached
to the upright levers H by means of studs or pivots c the further ends which are
slotted a certain distance working upon the studs a provided with friction rollers.
The cross slots pass over studs or pins & which are fixed in dises d' which are
keyed on to the main driving shaft c. e is the feed table And is a cam keyed on
to the main driving shaft c and working a lever y actuating the cut off valve / in
the suction tube a connecting the lifting cylinder V with the fan or exhaust
We now proceed to describe the operation of the machine. Motion having been
given to the parts the dises d' in revolving cause the side lever bby beans of the
pins d to move backwards the upright levers H these carry with thein the lifting
cylinder V which revolves by incans of the gearing wheels Z upon the racks Z¹
which are suitably arched for this purpose. The lifting cylinder having thus been
moved into a position for picking up a sheet remains thus momentarily at rest by
the cross-slot having been given a curve to correspond with the circle the pins d
move in. After working round this curve the pins d again begin to move tho.

page_text: upright levers H only in an opposite direction to that first given and the lifting
cylinder V with the slicet adhereing to it moves forwards now towards the receiving
roller E and as it does so the cylinder revolves also peeling off the sheet it carries
from the pile of paper and bringing forward the leading edge of the sheet over the
roller X the tapes or threads V throwing it off the lifting cylinder V itself. As
the paper takes this position ready for delivery to receiving roller E the air
passages Vi pass under the screen as the lifting cylinder continues to revolve so
that they may not depress the edge of the sheet the paper being sustained in
position by the suction through the subsidiary air passages Vill As the edge of
the sheet enters between receiving roller E which is always revolving, and the
over-head pulleys F which are shiftable upon their rod so that they may be placed
to suit the size of the paper, the pins d again cease to move the sliding levers by
means of another but shorter curve in the cross-slot, and at the same instant the
cam f closes the cut off valve h in the suction tube a by means of the lever g. The
sheet thus fed to the receiving roller E is fed forward by it on to the feed-table e
the tapes on which carry it down to the front lay of the machine being supplied
with paper and they adjust the sheet against such "lay" the side wiping finger
then comes round upon the side edge of the sheet and draws it against the base of
the frame work of the wiper which is kept perfectly square with the front lay.
The sheet having now been properly registered the tapes el upon the feed-table aro
arrested in their motion by the locking plate i Fig. 5 fixed on to the pinion
wheel coming into contact with the locking plate k upon the main driving
wheel and the grippers of the machine being fed then seizo and draw off the
sheet which has ineantime after the tapes ceased moving been held in position by
the suction from the tubes. Whilst the sheet has thus been fed forward and
drawn off the lifting cylinder has picked up another sheet and is now ready to
deliver it to the receiving roller thus keeping up a continuous supply. The
separator takes action upon the pile between the time the lifting cylinder V has
commenced to remove one sheet and comes into position to pick up another the
separator U U retiring as the cylinder advances towards it. The operation of this
is as follows, the cams m work the levers S forwards and they carry forward
the wiper bar T and the bar passing free of its supports allows the rubbers to
come into contact with the paper the cams then cause the rubbers to nove
backwards and forwards on the pile drawing back the bar on to its supports so as
just to lift the rubber free of the paper before the next rub and finally drawing it
off the pile into its resting position over the under suction chamber. If the
revolving or rocking motion be given to the separator, we use a simple cam to
throw the separator on and off the paper, the revolving motion being given by
suitable gearing wheels. But if the rocking motion be employed we use the other
cams already described and shewn at Fig. 2 as well as the plain cams.
Having now described our Invention we claim
Under the First part.
The construction and arrangement of the main suction or lifting chamber v
substantially as herein described and shown in the Drawings hereto annexed.

page_text: Under the fourth part,—
Overcoming the electrical attraction of the sheets of paper for each other by the
use of a counteracting material and conductor, substantially as herein described.
Under the seventh part,-
The construction and arrangement and operation of the subsiduary shut off
valve, as described under the said Seventh part.
Under the eighth part,―
The construction and arrangement of the feed-table substantially as herein
described and shown in the Drawings hereto annexed.
Under the tenth part,—
Cutting away a portion of the teeth of the driving wheel so as to arrest the
motion of the tapes on the feed tablo substantially as herein described and shewn
in the Drawings hereto annexed.
Under the eleventh part,-
Shaping the cam m so as to cause the separator U to give two or three rubs to 1
the paper substantially as herein described and shewn in Drawings hereto
annexed.
•
Under the twelfth part,-
Arranging the rubber portion of the separator so as to draw the paper instead of
driving it, substantially as herein described.
Under the thirteenth part,-
The use of revolving brushes for fretting the edges of the bulk of paper,
substantially as herein described.
Under the fourteenth part,-
Roughening by stepping, or cross cutting the back gauge of the rear table, as i
herein described for the purpose specified.
Under the fifteenth part,-
Employing a light strip of wood, or equivalent material to prevent the sheet
from remaining buckled, as herein described.
Lastly. The machine for feeding paper to printing and other machines, con-
structed arranged and operating substantially as herein described and shewn in
the Drawings hereto annexed.
In witness whereof, I, the said Frederick Hoyer on behalf of the said John
Henry Richardson Dinsmore and myself, have to this our Specification set
my hand and seal, this Twenty seventh day of May, in the year of our Lord
Oue thousand eight hundred and eighty two.
FREDERICK (α) πουπό