IMPROVEMENTS IN AND RELATING TO FEEDING PAPER OR OTHER MATERIAL TO PRINTING AND OTHER MACHINES, AND MECHANISM EMPLOYED THEREFOR, AND CONSISTS IN IMPROVE. MENTS ON PATENTS N° AND AND
Year: 1883

page_text: LETTERS PATENT to Frederick Hoyer of 59 Cornwallis Street Liverpool
in the County of Lancaster for an Invention of IMPROVEMENTS IN AND
RELATING TO FEEDING PAPER OR OTHER MATERIAL TO PRINTING AND OTHER
MACHINES, AND MECHANISM EMPLOYED THEREFOR, AND CONSISTS IN IMPROVE.
MENTS ON PATENTS N° 2855 AD 1880 AND N° 2457 AD 1881 AND N° 5241
PROVISIONAL SPECIFICATION left by the said Frederick Hoyer at the
Office of the Commissioners of Patents on the 1st January 1883.
FREDERICK HOYER, of 59, Cornwallis Street, Liverpool, in the County of
Lancaster "IMPROVEMENTS IN AND RELATING TO FEEDING PAPER, OR OTHER
MATERIAL TO PRINTING AND OTHER MACHINES, AND MECHANISM EMPLOYED
THEREFOR, AND CONSISTS IN IMPROVEMENTS ON PATENTS N° 2855 A.D. 1880 AND
N° 2457 A.D. 1881 AND N° 5241 A.D. 1881.
My invention relates to improvements in and relating to feeding paper or other
material to printing and other machines and mechanism employed therefor and
consists in. Improvements on Patents N° 2855 AD 1880 and N° 2457 A.D 1881
and N° 5241 A.D 1881.
First in improvements in and relating to the rear-table.
Second in improvements and devices for controlling the sheets of paper on the
feed or delivery tapes and for preventing the disarrangement of the sheets.
Third in an improved construction of the side wipers.
Fourth in improvements in rotating the lifting suction chamber.
Fifth in improvements in construction of the lifting suction chamber.
Sixth in improvements in the oscilation of the lifting suction chamber.
Seventh in improvement in and in connection with a stationary or vertically
raised lifting suction chamber.
Eighth in improvements in connection with feeding up the rear table auto-
matically so as to keep the top of the pile of paper at one uniform height as
regards the lifting suction chamber and for raising and lowering the table aforesaid
in connection therewith

page_text: Ninth in improvements in applying a blast of air for separating purposes and in
construction of such blowing arrangment
Tenth in improvements in and in connection with the under suction chamber.
Eleventh in improvements in cut off valves and working same in connection
with the blowing and under suction chambers
Twelfth in improved arrangements for controlling back edges of the upper sheets
of the pile of paper upon the rear table.
Thirteenth in improved devices for preventing two sheets being fed forward at
one time and to secure the return into position or removal of any second sheet
disarranged.
Fourteenth in a device for warning the attendant should the lifting suction
chamber fail to pick up a sheet.
Fifteenth in improvements in the over-head rollers and in the shaft carrying
same in connection with feeding forwards the sheets of paper
Sixteenth in improvements in arrangements for finding the heighth of the top of
the pile of paper upon rear table and for throwing into action the automatic lifting
mechanism.
Seventeenth in improved arrangement for wiping or separating the sheets of the
pile of paper one from the other.
Under my first part my improvement consists in an arrangement whereby I not
only overcome the disturbance caused by the waftage resulting to the under sheets
from the separating and removal of the upper sheet from the pile, but I actually
utilize the vaccuum causing such disturbance for the purposo of assisting in drawing
off any second sheet still adhering to the top sheet after it has been picked up by
the lifting suction. I obtain this result by the following means; namely, I hinge
the rear table at the inner edge to the frame work of the machine in a convenient
manner and by means of a suitably shaped cam or its equivalent I raise the outer
edge of the table with the paper upon it to the proper or feed heighth and-so soon
as the lifting suction chamber has had time to draw up against it the top sheet, I
lower the table with the pile of paper away from the sheet so held thus creating a
suction which if the table be dropped rapidly will draw off the sheet, even, which
is adhering to the lifting suction chamber. The rapidity of the drop is of material
moment and I regulate this by the special shape I give the cam aforesaid. The
table may be constructed of wood or metal sheets to save space, a slot being cut in
it for the gauge for keeping the inner edge of the pile of paper in position and for
the side gauges also or the side gauges may slide along the outer edge of the tablo
or in other suitable way. To prevent the outer edge of the pile of paper from
sliding forwards and jamming against the under-suction chamber I may employ a
flap or arrangment of wires to be closed up or fall against such outer edge as the
rear table descends and to drop away from the edge of the pile as the table is
raised so as to leave the sheets free. This may be done by a cam or its equivalent
suitably placed The rear table may be constructed so that it is the inner edge
which rises and falls or only a certain portion of the table rise and fall upon its
hinges but the more proper way seeins, to hinge the table as described and raiso
and lower the whole table.
Under my second part my improvements consist in providing a strip of wood
or metal having bosses or raised parts at such intervals as when put upon the
machine such bosses rise between the delivery tapes and aro of such thickness or
depth as the top shall lie just above the plane of these tapes. The object is to raise
the tail end or rear portion of the sheet off the delivery tapes so that when the
leading edge of the sheet comes against the gauges of the printing machine, the rear
edge may not be curled over by the still travelling tapes. This frame or strip to
be movable upon the machine so as to be adjustablo to the varying size of the
sheets and it may be secured in its desired position by means of a pin at either end
of the frame, dropping into suitable holes. The bosses are to be so shaped that
the front edge of the sheet may find no impediment from them to its advance.
Another mode of preventing such curling over of the paper is to be effected as

page_text: follows: I fix over the feed table or tapes two or more laths of wood or wires. I
arrange to lower theso over the said feod tapes until they just clear the sheet of
paper as the front edge of the sheet touches the gauges of the printing machine so
that any tendency to curl over is stopped. As soon as the sheet of paper is
removed by the printing machine the wires are raised off the table.
Under tho third part I provide two part circles of wire ono on either sido of the
rubber or wiper and so fixed in the spindle that thoy revolve with the said-rubber-
these wires being so bent and positioned that as the rubber acts on the sheet and
draws it against the side gauge, the free ends of the wire are over the edge of the
sheet and just clear of it so that any buckling of tho edge of the sheet under
pressure of the rubber is provented. Secondly I arrange under this part to unito
the part of the sido gauge carrying the rubber and having the side gauge attached,
to the part sliding on the shaft working the mitre wheel which gears into and
revolves the second mitre wheel fixed on the spindle carrying the rubber aforesaid.
The whole thus slides together and the mitre wheels nro always in gear together
and the side gauge is kept square with the gauges of the printing machine. The
whole is screwed to the table when working or may be kept in position by moans
of a sliding arm upon the smoother shaft, such arm being provided with a set screw
which drops into a bole in the side gauge pieco and which being screwed down,
tightens the gauge against the table or frame of the delivery or feed tapes. Instead
of an entire revolution of the spindle carrying the rubber, I may arrange for a
partial revolution for cach sheet, using two or more pieces of rubber set in the said
spindle each to act in turn.
Under the fourth part I provide a perpendicular rack working or sliding against
one of the upright levers supporting the lifting suction chamber. Into this rack
gears a small pinion wheel attached to a shaft running through the lifting suction
chamber and which is keyed or fixed on to this shaft. About the middle of this
rack piece I provide a stud furnished with a friction roller which moves in a slotted
frame or long cam which is so curved that as the upright lever moves backwards
and forwards, the rack-piece aforesaid is forced up and down and acting on the
pinion-wheel aforesaid causes the lifting suction chamber to rotate more or less
either way and the said lifting suction chamber air passages brought alternately
into picking up and delivery positions. By a suitable shaping of said slotted frame
or cain, I may arrange to give the lifting suction chamber a partial rotation as it
comes into picking up position. I do this by means of a cam fixed on a shaft
suitably placed, working against a lever supported in the middle by a pin fixed in
the frame work of the machine the other end of which lever acting on a stud
suitably placed in said rack piece forces the same upwards and thus moves partially
round the lifting suction chamber and thus causes the sheet it has just picked up
to be raised a little further at the edge off the pile of paper.
Under the fifth part I construct my lifting suction chamber in a cylindrical or
other suitable shape with or without the part carrying the air passages, projecting
from it. In one end of this chamber I place a stout plate with a central boss. On
the other end I fix a strong ring of brass or other metal turned to run upon a
flange of another ring of brass provided with a doublo flange and a central boss
which is attached to the periphery by two or more arms. This second ring is
provided with a projecting foot piece which I bolt on to the top of the second
upright lever. The shaft running through the lifting suction chamber is supported
at one end by the upright lever carrying the rack-piece and the other end passes
through the boss in said second ring. To the other flange of this second ring, I
attach the tube from the fan or exhaust.
Under the sixth part I improve the cross-slotted levers which I employ for
Oscilating the lifting suction chamber, by taking away the horizontal slotted part
employed to support these levors in position and instead I provide a rod attached
to a pin held in a plate fastened to the ground, on which pin the said rod can rock.
The cross-slotted lever is bolted on to the upper end of said rod or bar and is thus
supported in position. By another arrangement I fix one end of a connecting rod

page_text: to a revolving disc and at the other end of such rod I provide a strong stud or pin
provided with friction roller and which stud works in a box cam attached to the
said up-right lever each upright lever being thus furnished. The box cam aforesaid
is shaped so as to give a distinct interval of rest to the up-right levers when the
lifting suction chamber is brought by them into picking up position, before
moving forwards again.
-Under the seventh part I provide in place of the oscilating lifting suction
chamber, one that is fixed either at the outer or inner edge of the rear table and
this chambor may be arranged to be raised up after it has sucked up a sheet
instead of or in conjunction with the table being lowered. the same object being in
view namely all waftage prevented, the same arrangement being also obtainable
though not so conveniently with the oscilating lifting suction chamber, though in
both cases the lowering of the rear table is more feasible, convenient and effective.
To this fixed lifting suction chamber I give a cylindrical or other suitable shapo
and I either may have it fixed altogether or it may rotate entirely or partially for
each sheet fed forwards. In the first case I pass a set of tapes in front of the air
passages, the said tapes travelling round rollers suitably placed and arranged so
that the sheet is drawn against the said tapes by the suctions from the lifting
chamber till it is carried into a horizontal position with the machine and carried
direct by the tapes to the front gauges of the printing machine In case the lifting
suction chamber is rotated or partially rotated the sheet of paper is drawn against
the revolving cylinder itself and delivered by it to a receiving roller with overhead
rollers to keep the sheet against such receiving roller and to pass it on to the
delivery or feed tapes. After the delivery of the sheet to the receiving rollor by
the rotating lifting suction chamber the air passages pass behind a shield which
cuts off the ingress of air. This lifting suction chamber may be made with double
or single cylinders
Under the eighth part I provide either in substitution or in addition to the
lifting screws I have described in the previous patents referred to, the following
arrangement for securing the pile of paper being kept at the proper feed heighth
for the lifting suction chamber to pick up the top sheet. I fix a plate underneath
the rear table in a suitable position, with two lugs through which I pass a pin
supporting a perpendicular rod which is free to sway to and fro. I thread the
lower portion of this rod leaving five or six inches more or less plain, the screwed
portion works in a female screw which is supported by pins or studs projecting
from it in the forked end of a horizontal lever rocking upon a shaft suitably
placed. The other end of this horizontal lever is connected with one end of a
perpendicular lever the other end of which is slotted and through which slot
another shaft bearing a cain passes. In a suitable position furnish this
perpendicular lever with stud provided with friction roller which works against
the face of said cain. As the shaft revolves it carries the cam aforesaid with it
and the perpendicular lever by the cam bearing upon the said stud is thus forced
down and acting on the horizontal lever it is connected with, it forces the rod
upwards as it is held in the female screw aforesaid and the rear table is thus raised
up at the outer edge the degree arranged for. As the cam works round, the
perpendicular lever is allowed to rise again and the rear table consequently falls.
For feeding up the table in compensation for the sheets as they are removed
I employ the following arrangement. On the plain part of the rod attached to the
under side of the rear table I key on a pulley of wood or metal about six inches
long and four inches in diametre more or less and upon the shaft carrying the large
ratchet wheel I fix a V shaped pulley of the same diametre and connect the one
with the other by a strong rubber ring or band, providing at the same time the
large ratchet wheel with a catch-pawl to prevent the spring of the rubber carrying
it back again and thus give no movement to the long pulley. As the large ratchet
is worked round, it drives round the ỵ shaped pulley and the band works the long
pulley and the rod aforesaid is screwed out correspondingly and the table is raised.
To give the band a better hold, the long pulley may be grooved so that the rubber

page_text: can bed itself into the grooves. In place of this arrangement I may however
employ a chain and chain wheel.
Under the ninth part I construct a blast chamber having one mouth pieco
which I place in the centre of the edge of the rear-table, coming in between two
of the under suction air passages and projecting forward to within half an inch
more or less, of the pile of paper. I also provide a valve in the tube supplying such
blast chamber so that the pressure of the blast can be regulated. When the blast
is on, it strikes thus only on one part of the edge of the pile of paper, preferably
the middle, and as a result the upper foed sheets are only raised where the blast
impinges upon them, the weight of the rest of the sheet keeping even the top
sheet from floating all along its length. The advantages gained by this adaptation
of the blowing for the purposes of separation are important. Under the old
system, if two sheets were adhering together they continued to do so as they rose
together and floated on the blast together and no separation took place, but by
blowing in the centre or only on one portion of the sheet and with strength not
sufficient to raise the top sheet above the line of blast, the upper sheets always
remain under power of the blowing, so that it is almost impossible for two sheets
to remain sticking together. The mouth piece may be arranged to be at the end
of a flexiblo tube so that its position may be changed to suit varying sized paper
and in large machines more than one mouth-piece may be used with advantage in
the case of big sheets and heavy paper, but still all close together and the blast
directed to one part of such sheets only. In case that more than one mouth piece
is provided, shutters may be provided for closing any superfluous one. The
moment the lifting suction chamber has reached its picking up position, the blast
is cut off and the under suction is thrown on and the rear table falls. The blast
chamber may be arranged by suitable means, and with the aid of the accordion or
bellows arrangement already employed in other parts, to rise and fall along with
the rear table.
Under the tenth part I construct the under-suction chamber so that the air
passages are at the top of the tubes or chamber, the front part being higher than
the back so that the top slopes off backwards. I arrange also to raise and lower
this chamber along with the rear-table.
Under the eleventh part I arrange the air tubes to the blast and suction
chambers to run for part of the way side by side and fit both into an oval pieco
having two rings; the flange round being thick enough to be bored for a ³/"
spindle passing through both the rings. The valves for the blast and suction
pipes are fitted at right angles one to the other on said spindle, so that when one
is closed, the other is open, so that one cain and lever can work them both.
Under the twelfth part I employ a light rod or tube having rollers thereon at
intervals, the latter resting upon the pile of paper and allowing the top sheet more
readily to be drawn off under the necessary weight to keep the sheets from getting
disarranged.
Under the thirteenth part I employ brushes or a wiper to brush or wipe the
sheet as it is held by the lifting suction chamber or I may employ another suction
tubo to act on the outer side of the sheets as they are lifted and carried by the
lifting suction, so that if a second sheet adheres, it may be drawn off but I take
care that such other suction shall not be strong enough to disarrange the sheet
properly held. I also provide as a means of carrying off any sheet so detached,
another suction roller revolving so that any sheet dropping on it, may thus be
removed out of the way. The suction tube as above to rub on the travelling sheet
might perhaps be arranged to do this as well.
Under the fourteenth part I utilize the increased inrush of air into the lifting
suction chamber; occasioned by the absence of any sheet over its air passages, to
sound a whistle or some other instrument and thus give notice to the attendant
that no sheet has been picked up.
Under the fifteenth part I employ a hollow rod or tube as a shaft for carrying
the overhead rollers running upon the receiving roller or tapes, letting a solid piece

page_text: in at each end with projecting part for running in boarings. The rollers I make
of wood or some other suitable material, the peripheries of which I groove out to
receive a thick rubber band. After boring out the centres of the discs or circles, I
saw or cut them in half, the rubber band still holding them together and also
serving to keep them in the position given them upon the said shaft on which they
are adjustable by this arrangement.
Under the sixteenth part I provide a bar or rod which I pin on at one end to
part of the frame work of the machine, the "cheek" being a suitable place. The
other end of this bar reaches to about the outer edge of the rear table, at this part
I bend it upwards and to this bent-up part I attach a crank-piece bent inwards.
The bent part of the bar is gripped between two springs, or other suitable arrange-
ment, which whilst holding the bar in the position given it, allows it to slide
between the said flat springs. On a convenient place on the up-right lever on tho
same side as the aforesaid bar, I attach a pawl carrying a projecting pin from its
side, which pin passes under said bar so that when the bar presses down upon it,
it throws the pawl into gearing position with the large ratchet wheel which is
fixed on the shaft carrying the ✓ shaped pulley already described. As the upright
lever carries the pawl along, the pawl catches the teeth of the ratchet wheel and
moves it round and the pulley attached to the shaft drives the long pulley on the
lifting screw. For finding the heighth of the pile and for throwing the said pawl
into action, I either employ a modification of the wiper or separator which I use
upon the rear table, with a short arm or bar which falls upon the crank-piece
aforesaid. If the separator be not required I employ a shaft carrying two arms
only, one of which is movable and falls on the top of the pile of paper the other arm
falling upon the crank piece aforesaid If the top of the pilo of paper be too low,
action is given to the pawl, the bar being pressed down and throwing the pawl
into gearing position. Or I may attach a bar or rod to the lifting suction cylinder,
which is so arranged as to lie upon the top of the pile of paper when the said
chamber is in picking up position. If the pile be too low, a bar or arm on a
projecting end works the bar throwing the pawl into gear as aforesaid.
Under the seventeenth part I employ a modification of the wiper or separator
already in use, the needful alterations to meet the rise and fall of the table being
introduced into it.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Frederick Hoyer in the Great Seal Patent Office on the 30th June
1883.
FREDERICK HOYER, of 59 Cornwallis Street, Liverpool, in the County of
Lancaster "IMPROVEMENTS IN AND RELATING TO FEEDING PAPER, OR OTHER
MATERIAL TO PRINTING AND OTHER MACHINES, AND MECHANISM EMPLOYED
THEREFOR AND CONSISTS IN IMPROVEMENTS ON PATENTS N° 2855 A.D. 1880 AND
N° 2457 A.D. 1881 AND N° 5241 A.D. 1881"
My Invention relates to improvements in and relating to feeding paper or other
material to printing and other machines and mechanism employed therefor and
consists in improvements on Patents N° 2855 A.D. 1880 and N° 2457 AD 1881
and No 5241 A.D. 1881
First in improvements in and relating to the rear table.
Second in improvements and devices for controlling the sheets of paper on the
feed, or delivery tapes and for preventing the disarrangement of of the slicets.
Third in an improved construction of the side wipers.
Seventh in improvements in and in connection with a stationary suction
chamber.
Eighth in improvements in connection with feeding up the rear table auto-
matically so as to keep the top of the pile of paper at one uniform heighth as
regards the suction chamber and for raising and lowering the table aforesaid in
connection therewith.
Ninth in improvements in applying a blast of air for separating purposes and in
construction of such blowing arrangements.
Thirteenth in improved devices for preventing two sheets being fed forward at
one time and to secure the return into position, or removal of any second sheet
disarranged.
Fourteenth in a device for warning the attendant should the suction chamber
fail to pick up a sheet.
Fifteenth in improvements in the overhead rollers and in the shaft carrying
same in connection with feeding forwards the sheets of paper.
Sixteenth in improvements in arrangements for finding the heighth of the top of
the pile of paper upon rear table and for throwing into action the automatic lifting
mechanism.
Under my first part my improvements consist in an arrangement whereby, I
not only overcome the disturbance caused by the waftage resulting to the under
sheets from the separating and removal of the upper sheet from the pile, but I
actually utilize the vacuum causing such disturbance for the purpose of assisting
in drawing off any second sheet still adhering to the top sheet after it has been
picked up by the lifting suction. I obtain this result by the following means
namely 1 hinge the rear table at the inner edge to the framework of the machine
in a convenient manner and by means of a suitably shaped cam, or its equivalent,
I raise the outer edge of the table with the paper upon it to the proper, or feed
heighth and so soon as the suction chamber has had time to draw up against it
the top sheet, I lower the table with the pile of paper away from the sheet so
held, thus creating a suction which if the table be dropped rapidly will draw off the
sheets even which is adhering to the lifting suction chamber. The rapidity of the
drop is of material moment, and I regulate this by the special shape I give the
cam aforesaid. The table may be constructed of wood, or metal sheets to save
space a slot being cut in it for the guage for keeping the inner edge of the pile. of
paper in position and for the side guages also, or the sido guages inay slide along

page_text: the outer edge of the table, or in other suitable way. To prevent the outer edge
of the pile of paper from sliding forwards I may employ a flap, or arrangement of
wire to be closed up, or fall against such outer edge as the rear table descends and
to drop away from the edge of the pile as the table is raised so as to leave the
sheets free. This may be done by a cam, or its equivalent suitably placed. The
rear table may be constructed so that it is the inner edge which rises and falls, or
only a certain portion of the table rise and fall upon its hinges, but the more
proper way seems to raise and lower the whole table.
Under the second part my improvements consist in providing a strip of wood,
or metal having bosses, or raised parts at such intervals as when put upon the
machine such bosses rise between the delivery tapes and are of such thickness, or
depth as the top shall lie just above the plane of these tapes. The object is to
raise the tail end, or rear portion of the sheet off the delivery tapes so that when
the leading edge of the sheet comes against the guages of the printing machine, the
rear edge may not be curled over by the still travelling tapes. This frame, or strip
to be moveable upon the machine, so as to be adjustable to the varying size of the
sheets, and it may be secured in its desired position by means of a pin at either end
of the frame, dropping into suitable holes. The bosses are to be so shaped that the
front edge of the sheet may find no impediment from them to its advance.
Another mode of preventing such curling over of the paper is to be effected as
follows. I fix over the feed table, or tapes two, or more lathes of wood or wires
I arrange to lower these over the said feed tapes until they just clear the sheet of
paper as the front edge of the sheet touches the gauges of the printing machine so
that any tendency to curl over is stopped. As soon as the sheet of paper is
removed by the printing machine, the wires are raised off the table. These wire,
or laths may take the form of a "flyer" as used on ordinary printing machines.
Under the third part I provide two part circles of wire one on either side of the
rubber, or wiper and so fixed in the spindle that they revolve with the said rubber
these wires being so bent and positioned that as the rubber acts on the sheet and
draws it against the side gauge the free ends of the wire are over the edge of the
sheet and just clear of it so that any buckling of the edge of the sheet under
pressure of the rubber is prevented. Secondly I arrange under this part to unite
the part of the side gauge carrying the rubber and having the side gauge attached
to the part sliding on the shaft working the mitre wheel, which gears into and
revolves the second mitre wheel fixed on the spindle carrying the rubber aforesaid.
The whole thus slides together and the mitre wheels are always in gear together
and the side gauge is kept square with the gauges of the printing machine. The
whole is screwed to the table when working, or may bo kept in position by means
of a sliding arm upon the "smoother shaft such arin being provided with a set
screw which arops into a hole in the side gauge piece and which being screwed
down tightens the gauge against the table, or frame of the delivery, or feed tapes.
Instead of an entire revolution of the spindle carrying the rubber I may arrange
for a partial revolution for each sheet using two, or more pieces of rubber set in
the said spindle each to act in turn.
"
Under the seventh part I provide a suction chamber that is fixed at either the
outer, or inner edge of the rear table. To this fixed suction chamber I give a
cylindrical, or other suitable shape and I may either have it fixed altogether, or it
may rotate entirely, or partially for each sheet fed forwards. In the first case I
pass a set of tapes in front of the air passages, the said tapes travelling round
rollers suitably placed and arranged so that the sheet is drawn up against said
tapes by the suction from the suction chainber till it is carried into a horizontal
position with the machine and carried direct by the tapes to the front gauges of
the printing machine. In case the suction chamber is rotated, or partially rotated
the sheet of paper is drawn against the revolving cylinder itself and delivered by it
to a receiving roller with overhead rollers to keep the sheet against such receiving
roller and to pass it on to the delivery, or feed tapes. This suction chamber is
made with double cylinders.

page_text: Under the eighth part I provide either in substitution, or in addition to the
lifting screws I have described in the previous Patents referred to, the following
arrangement for securing the pile of paper being kept at the proper feed beighth
for the suction chamber to pick up the top sheet. I fix a plate underneath the
rear table in a suitable position with two lugs through which I pass a pin sup-
porting a perpendicular rod which is free to sway to and fro. I thread the lower
portion of this rod leaving five, or six inches more, or less plain. The screwed
portion works in a female screw, which is supported by pins, or studs projecting
from it in the forked end of a horizontal lever rocking upon a shaft suitably
placed. The other end of this horizontal lever is connected with one end of a
perpendicular lever. In a suitable position I furnish this perpendicular lever with
a stud provided with a friction roller which works against the face of a cam. As
the shaft revolves it carries the cam aforesaid with it and the perpendicular lever
by the cam bearing upon said stud is thus forced away and acting on the horizontal
lever it is connected with, it forces the rod upwards as it is held in the female
screw aforesaid and the rear table is thus raised up at the outer edge the degree
arranged for. As the cam works round the perpendicular lever is allowed to fall
again and the rear table consequently falls For feeding up the table in com-
pensation for the sheets as they are removed I employ the following arrangement.
On the plain part of the rod attached to the under side of the rear table 1 key on
a pulley of wood, or metal and upon the shaft carrying the ratchet wheel I fix a
V shaped pulley of the same diameter and connect the one with the other by a
strong band providing at the same time the ratchet wheel with a catch pawl. As
the ratchet wheel is worked round it drives round the V shaped pulley and the
band works the feed pulley and the rod aforesaid is screwed out correspondingly
and the table is raised To give the band a better hold, the feed pulley may be
grooved so that the band can bed itself into the groove. In place of this arrange-
ment I may however employ a chain and chain wheels.
Under the ninth part I construct a blast chamber having mouth pieces projecting
to within half an inch more, or less of the pile of paper. I also provide a valve
in the tube supplying such blast chamber so that the pressure of the blast can be
regulated. When the blast is on it is arranged to strike only one part of the edge
of the pile of paper preferably the middle and as a result the upper few sheets are
only raised where the blast impinges upon them, the weight of the rest of the
sheet keeping even the top sheet from floating all along its length. The advantage
gained by this adaptation of the blowing for the purposes of separation are
important. Under the old system if two sheets were adhering together, they
continued to do so as they rose together and floated on the blast together and no
separation took place, but by blowing on the centre or only on one portion of the
sheet, the upper sheets always remain under power of the blowing so that it is
almost impossible for two sheets to remain sticking together. The mouth pieces
may be arranged to be at the end of a flexible tube so that the position may be
changed to suit varying sized paper and in large sheets the mouth pieces are used
with advantage in the case of big sheets and heavy paper all close together and the
blast directed to one part of such sheets only. Shutters are provided for closing
any superfluous ones The blast chamber may be arranged by suitable means and
with the aid of the accordion, or bellows arrangement already employed in other
parts to rise and fall along with the rear table.
Under the thirteenth part I employ brushes, or a wiper to brush, or wipe the
sheet as it is held by the suction chamber, or I may employ another suction tube
to act on the outer side of the sheets as they are lifted and carried by this lifting
suction so that if a second sheet adheres it may be drawn off but I take care that
such other suction shall not be strong enough to disarrange the sheet properly
held. I also provide as a means of carrying off any sheet so detached another
suction roller, revolving so that any sheet dropping on it may thus be removed out
of the way. The suction tube as above to rub on the travelling sheet might be
arranged to do this as well.

page_text: Under the fourteenth part I utilizo the increased inrush of air into the suction
chamber occasioned by the absence of any sheet over its air passages to sound a
whistle, or some other instrument, and thus give notice to the attendant that no
sheet has been picked up.
Under the fifteenth part I employ a hollow rod, or tube as a shaft for carrying
the overhead rollers running upon the receiving roller or tapes, letting a solid piece
in at each end with projecting parts for running in bearings. The rollers I make
of wood, or some other suitable material, the peripheries of which I groove out to
receive a thick rubber band. After boring out the centres of the discs, or circles I
saw, or cut them in half, the rubber band still holding them together and also
serving to keep them in the position given them upon the said shaft on which they
are adjustable by this arrangement.
4
Under the sixteenth part I provide a bar, or rod which I fix on at one end to
part of the framework of the machine. The other end of this bar reaches to about
the outer edge of the rear table, at this part I bend it upwards. On a convenient
place near the upright lever on the same side as the aforesaid bar I attach a pawl
carrying a projecting pin from its side which pin passes under said bar, so that when
the bar presses down upon it it throws the pawl out of gearing position with the
ratchet wheel, which is fixed on the shaft carrying a V shaped pulley as already
described. As the upright lever rises, the pawl catches the teeth of the ratchet
wheel and moves it round and the pulley attached to the shaft drives the pulley
on the lifting screw. If the top of the pile of paper be too low action is given to
the pawl, the bar leaving the pawl in gearing position. Or I may attach a bar, or
rod to the suction cylinder which is so arranged as to lie upon the top of the pile
of paper when the said chamber is in picking up position. If the pilo be too low a
bar, or arm on a projecting end works the bar throwing the pawl into gear as
aforesaid.
Having now set forth the various features of my Invention, it will be seen that
I have abandoned several heads as set forth in my Provisional Specification. I will
now proceed to describe how the parts which I have retained may be combined
and co operate and for that purpose, I have hereunto attached three sheets of
Drawings which are marked with figures and letters of reference corresponding
with those in the following explanation, like letters and figures being used to
denote the same, or corresponding parts throughout the various views

page_text: one end through the pipe C to an exhaust fan. The cylinder B is of section as
shown by the details Figures 10 and 11, namely it is provided with the longitudinal
opening B' and the circumferential grooves B³. The cylinder B is surrounded by
an outer casing D which is perforated and revolves round the cylinder B as and for
the purposes hereafter described. At the end of the frame and in front of the
table A there is mounted the blowing chamber E, which is connected to a blowing
fan through the pipe E' the function of the blowing chamber E is to cause a blast
of air to pass through the openings e e¹ e in the chamber E, which blast of air
separates the sheets of paper of the pile by blowing on a portion of their front
edges at the proper time. I arrange the blowing in the following manner: air is
only allowed to blow onto one portion of the front edges of the pile of paper,
namely at either side, or at the centre This partial blowing only causes one
portion of the top sheet, or sheets to float off the pile, so that when the suction
cylinder A has taken up a sheet, the weight of the undisturbed portions of the
immediate sheets beneath has the effect of making them fall rapidly to the pile
which has been lowered and with certainty over the tubes E' I ship sleeves e to
form shutters to the openings e e' e³, so that I can close, or partially close the
holes e ele, or I can leave them fully open, thus I am able to regulate the amount
of blast and any portion of the number of tubes required to be in action. It will
be understood that the sheets are separated before the pile is raised, the blast
coming through the holes e and during the time it is raised, the holes e¹ e the
blast through the holes e is applied, over the whole edge of the sheets F is a stop
piece running the whole breadth of the table and mounted on the rocking levers F³,
which are fulcrumed at F and worked by the rod F³ which is operated by a cam
on the main shaft EI of the machine, so as to cause the stop piece F to take the
position shown at Figure 1 and so prevent the sheets of paper from lapping round
the cylinder D until the table A and pile of paper have been lowered so that should
any sheet, or sheets be held by the suction cylinder other than the uppermost
sheet, it, or they are prevented from lapping round the outer cylinder D and fall
back onto the pile. To convey the sheets of paper from the revolving cylinder D
to the printing machine I use a series of travelling bands I on which the sheet
rests and is conveyed down to the gate J, the function of which is to straighten the
sheet of paper on the bands I. The gate J partakes of the nature of a fork and
extends across the machine, the prongs coming up between the bands I as shown
at Figure 1. Movement is given to the gate J by the rod K and the cam K', which
is mounted on the main shaft EL as shown. After passing the gate J, the sheet of
paper is conveyed onto the table L where it is adjusted by the side registering
device M which consists of a strip of wood or metal sliding laterally across the
table Land worked by the crank and bevel gear device M' which receives move-
ment from the pulley M which is worked by a band from the main shaft. The
rear edge of the sheet being raised from off the tapes to prevent buckling by the
studs which slide along the tablo L to suit different sizes of sheets. The table L
is similar to those in common use and delivers the sheet of paper to the printing
machine in the usual way. The endless bands I pass over the rollers J Jª°J³ J* J³
and the roller J' receives motion by the band Jo driven by the pulley J7 which is
mounted on the secondary shaft N which receives motion from the main shaft H
through the tooth wheel gear O
The table A as shown at Figure 1 is hinged at A' and is operated, namely raised
and lowered by the rod A², the upper end of which is hinged under the front end
of the table A The rod A is screwed, on this scrowed rod A there is a screwed
nut P having a grooved wheel P¹ outside the nut P there is a sleeve P¹ provided
with pins P which work in the ends of the forked lever Q which is fixed on the
shaft Q. The shaft Qis rocked by the lever Q2 and the rocking motion is
imparted by the connecting rod Q which receives motion from the cam Q' on the
main shaft H. Thus by every revolution of the shaft H an up and down move-
ment is given to the table A. To feed the table A for compensating for the removal
of the sheets of paper I use the gear shown at Figures 1. 4. 5. and 6. This gear

page_text: consists of the bar R, which is adjustable radially for the different sizes of sheets.
The end of the bar rests on the plate R', which rests on the surface of the lower
end of the pile of paper. The plate R' slides vertically in the gauges a, the bar R
is fulcrumed on the bracket R². The end R³ of the bar R comes under the
T headed rod S, which receives motion from the cam S' on the main shaft H
between the end R³ and the fulcrum R2 of the bar R, and under the bar R there is
placed the T headed rod T the lower end T of which is bent round as shown.
The purpose of the bent portion T¹ of the bar T is to allow the pawl T¹ to
gear either in, or out of the ratchet wheel T3 which is mounted on the shaft t and
is worked by the pawl T which works on a pin between two levers t', which are
mounted on the shaft t and are rocked by the rod t worked by the cam T on the
main shaft H, the rod t works on the guide pin 3 On the shaft t is a ropo
pulley U shown in dotted lines and the shaft t. thus by the endless rope U'
operates the pulley P¹ on the screwed nut P and so imparts the feed through the
rod A to the table A. The action of the feed gear is thus as the sheets of paper
are removed from the pile on the table A the sliding plate R' drops and the bar R
drops with it the end R³ of the bar rises and allows the T headed bar T to lift by
the spring T and so lets the pawl T come into gear with the ratchet wheel T
when the bar T is down the pawl T is prevented from gearing with the wheel T³
by the pin t, which rides on the bent part T¹ of the bar T. The feeling up of the
tablo A brings the pile of paper up to the proper position and causes the bar T to
throw the pawl T out of gear with the wheel T3 and stops the feed until the pilo
of paper is again reduced.
The perforated cylinder D is revolved by the bevel gear shown at Figure 7,
motion being obtained from the secondary shaft N One end of the cylinder D is
mounted in the cup on the end of the shaft & which is carried by the bracket d¹.
The other end of the cylinder D runs in the cone bearings d' which is mounted on
the fixed suction cylinder B. The shaft d is provided with the level wheel №³
which gears into the bevel gear as shown at Figure 7.
The blast of air to the chamber E is provided by a suitable fan through the
pipo E which is provided with a valve at E' worked by the lever and rod E³ and
receiving motion from the cam E at every revolution of the shaft H the cain E*
being so positioned as to cause a blast of air to pass through the openings e e¹ e³ of
the chamber E at the desired time.
The cams T, Q' E' are arranged as shown at Figures 8 and 9, so that they can
be adjusted in their relative position to operate at the correct time for use with
different sized sheets of paper. For instance the cams can be adjusted on the
shaft H so that supposing the full sized sheet is 30 inches and that a smaller sheet
say 20 inches is being fed I can shift the cams so as to cause the table A to rise
sooner, so that immediately the suction orifice is clear from the preceding sheet the
next sheet may be picked up immediately and I so obtain an increased time for
separation.
On the stop piece F I provide the wires or their equivalent f to push back any
sheet that may be drawn forward out of place. The front edge of the pile is thus
kept even. The pile of paper is placed on the table A and is removed sheet by 4
sheet and delivered to the printing machine in the following manner. The table A
and pile of paper being in their lowered position the blast through the chamber E
is turned on and separates the upper sheets in manner before described, the blast
being continued for about half the cycle of operation The table is then raised by
its gear into position as shown at Figure 1. The suction from the cylinder B then 5
lifts and holds the upper sheet of paper in contact with the perforated revolving
casing D, the stop piece F holding the leading edge of the sheet, the table being
lowered almost immediately and the separated sheets then fall onto the pile, a
single sheet only adhering to the cylinder D. During this time the sheets are held
at their lower edges by the plate R' and bar R which is of sufficient weight to hold 5
the sheets of paper against the pull of the cylinder D. After the sheets have
settled tho bar R is raised and releases the top sheet of paper which is then carried

page_text: round by the cylinder D and delivered onto the bands I which carry the sheet to
the gate J which straightens the sheet and then falls and allows the shoet to pass
down the bands I onto the table L where it is finally registered and taken by the
printing machine in the usual manner.
To give an alarm if the suction cylinder fails to take up a sheet. I provide the
reed instrument B inside the cylinder B as shown at Figure 11. The extra rush
of air through the opening B' when the pile is finished causes the instrument B' to
give an alarm.
As another method and instead of the tapes I,
convey the sheets down to the table L. The flyer being operated by any suitable
use a flyer I see Figure 12 to
mechanism from the crank shaft such as is used for operating ordinary printing
machine flyers. In operation the sheets are delivered from the cylinder D onto the
slats of the flyer I The flyer is then rocked and delivers the sheet onto the lower
table L, the gate J being in this case on the flyer and adjustable.
I would have it understood that although the table A is shown at Figure 1
hinged at A' and having a rocking movement that the table may be moved bodily
in a horizontal position
Having now described my Invention I claim
First In mechanism for feeding sheets of paper from a pile to printing
machines, raising and lowering the pile up to and down from a suction and
delivering device as the paper is withdrawn sheet by sheet substantially as herein
set forth.
Second In mechanism for feeding sheets of paper to printing machines the use
of a stop device F for the purposes herein set forth and as shown in the Drawings
hereto annexed.
Third In mechanism for feeding sheets of paper to printing machines the
use of adjustable cams E. Q and T for varying the action of the parts which
they operate for the purpose set forth and as shown in the Drawings hereto
annexed.
Fourth In mechanism for feeding sheets of paper to printing machines the
application of a blast directed onto a portion of the edge of the pile as herein
described and for the purposes set forth.
Fifth The construction and mounting of the fixed suction cylinder B and the
mode of carrying the perforated cylinder D substantially as herein described and
shown in the Drawings hereto annexed.
Sixth The use of a rocking device such as f for purposes specified and as shown
in the Drawings hereto annexed.
Seventh The table feeding device as herein described and shown in the Drawings
hereto annexed.
Eighth The gate J for purposes specified and operated as herein set forth and
shown in the Drawings hereto annexed.
Ninth The use of a device such as R R¹ for holding the rear edge of the pile of
paper as herein described and for purposes set forth and as shown in the Drawings
hereto annexed.
Tenth The registering device M as herein described and operating and as shown
in the Drawings hereto annexed.
Eleventh The use of a flyer for the purpose set forth and such as shown at
Figure 12 of the Drawings hereto annexed.
In Witness whereof, I the said Frederick Hoyer have hereunto set my hand
nd seal this Twenty ninth day of June, in the year of our Lord one thousand
ight hundred and eighty three.
RADARR
FREDERICK HOTER
L.S.)