An Improved Paper Feeding Device for Printing Machines.
Year: 1899

page_text: Date of Application, 20th July, 1899-Accepted, 9th Sept., 1899
An Improved Paper Feeding Device for Printing Machines.
I, WILHELM JOSEPH BEHLE, of 113, Haidestrasse, Frankfort-on-the-Main,
Printer, do hereby declare the nature of this invention and in what manner the
same is to be performed to be particularly described and ascertained in and by
the following statement:-
-
This invention relates to apparatus for feeding paper or other material, to be
printed on printing machines, automatically instead of manually.
In order that this invention may be the better understood, I now proceed to
describe the same, reference being had to the accompanying drawings and to
the letters and figures marked thereon. Like letters refer to like parts in the
various figures.
Figure 1 is a side view of the apparatus.
Figure 2 is a plan thereof.
Figure 3 is a rear view thereof.
Figure 4 is a sectional view on the line A-B of Figure 3.
Figure 5 is a view of a detail seen from below.
Above a table a to support the paper a movable paper raising device c is
arranged, in guides b, which consists mainly of a number of suction pipes d
adapted to be placed at desired distances apart from one another. The latter
are connected to one another and to a pump f by a flexible tube e. The device c
is operated from the main axle by means of cams h, and pressing rods k
provided with rollers i and guided in recesses of the table a; these means raise
the device c, which is lowered by its own weight.
Rollers are provided in front of the paper raising device c, and their bearings
rest in supports m arranged on an axle n. These rollers serve as grippers and
approach and recede from the device c after the latter has raised a sheet of paper
by suction from the pile on the table a. This movement is effected by an
oscillating movement given to the supports m of the bearings of the rollers!
by the main axle g. For this purpose a bent rod p with a gripper g is arranged
on a rod o connecting the supports m. The main axle g is free to rotate in a
slot of the gripper 9. On each side of the gripper is situated a roller s
operated by the differently formed cams and respectively of the main axle g.
Of these two cams, t causes the approach of the gripper rollers to the paper
raising device c, and the cam u, which is similar in shape to the cains h, causes
the rollers to recede from the raising device c.
The gripper rollers receive their rotary motion from friction rollers v the
axle w of which, Figure 4, is operated from the main axle g by cog wheels 1, 2,
3, 4, 5, 6.
The proportion and arrangement of parts is such that at each rotation of the
main axle g the paper raising device is slowly lifted and quickly lowered, during
which operation the gripper rollers are caused to approach to the device c so
closely that they grip the sheet raised by the device and make such a number
"

page_text: of rotations as to deliver the largest size of paper required. As soon as the
gripper rollers 7 have gripped the paper, the suction of the paper raising device
is stopped in the following manner:-
The before mentioned oscillation of the gripper roller supports m causes the
disengagement of the tube e and pump f, by a lever 7 attached to one of the
supports m striking against a lever 9 (acted on by a spring 8) of a valve 10,
thus stopping the suction of the pump by the opening of the valve 10.
The paper sucked up by the raising device c and gripped by the gripper
rollers passes by the rotation of the latter to the oblique rollers 12 connected
together by the wires 11, and said rollers are operated in suitable manner and
at required speed, for instance from the printing cylinder 13 by a gut line.
The side 25 is fixed, the other side 14 which guides the paper fed forwards
by the rollers 12, is adjusted on a slide 15 and adapted to be moved by the latter.
The side 14 is adjusted to exactly the width of the paper to be printed and
passes sideways at the passage of the paper. A slide 15 movable in the transverse
direction of the rollers 12 is operated by the main axle g as follows (see
Figure 5):
A cog wheel 16 fixed to the main axle g causes a rotation of the axle n, which
is bent in the form of a crank between the ends, by means of a cog wheel 17.
A connecting rod 18 transmits the motion to a guide rod 21 by an angle lever 20,
pivoted to the frame piece 19 which serves as a guide to the slide 15. The guide
rod 21 engages with a pin 23 of the slide 15, which is guided in a corresponding
slot 22 of the frame piece 19.
Therefore when the paper is fed by the gripper rollers to the rollers 12 it is
brought into position for printing by the before mentioned movements of the
side 14, is taken by the printing cylinder 13, and printed in the usual manner.
The main axle is operated by a pulley 24 from a suitable source of power so
that the feeding apparatus works in accordance with the speed of the printing
press.
Bars 26, conveniently adjustable, may be arranged on the table a to secure
the paper.
Having now particularly described and ascertained the nature of this
invention and in what manner the same is to be performed, I declare that what
I claim is:-
1st. A feeding apparatus for printing machines in which a paper raising
device c moving above a table a and connected with a suction tube de f, feeds
the paper to rollers 12 by gripper rollers in order to deliver the material to be
printed, automatically to a printing machine substantially as described.
2nd. A feeding apparatus for printing machines as claimed in Claim 1 in which
the paper raising device is slowly lifted and rapidly lowered once during a
rotation of the main axle g, during which operation the gripper rollers are
caused to approach the raising device so closely that they grip the sheet of paper
raised by the device c, and make sufficient revolutions to deliver the largest size
of paper, substantially as described.
3rd. A form of construction of a feeding apparatus as claimed in Claims 1
and 2 in which the movement of the paper raising device c and the gripper
rollers is effected from the main axle g, the vertical movement of the paper
raising device c being effected by cams h and pressing rods provided with
rollers i, the rotation of the gripper rollers 7 being effected by friction rollers v,
cog wheels 1, 2, 3, 4, 5, 6, and the oscillating movement of the gripper rollers
between the paper raising device c and the rollers 12 being effected by a gripper q,
situated on a bent rod p which acts on the roller supports m, the main axle g.
being free to rotate in a slot r of the gripper g. and the rollers s being operated
by cams of the axle g, and the suction pipe being disengaged by a lever
arrangement 7, 8, 9, 10 substantially as described.
4th. A form of construction of the feeding apparatus as claimed in Claims 1

page_text: to 3, in which the paper is guided by sides 25, 14, when passing through
rollers 12, the side 14 being movable by a slide 15 which latter is actuated by
crank and gearing 16, 17, 18, 20, 21, substantially as described.
Dated this 20th day of July 1899.
FELL & JAMES,
Agents for the Applicant.