Improvements in or connected with Taking-off Mechanism of Varnishing and like Machines
Year: 1897

page_text: Date of Application, 3rd Feb.,
1897
Complete Specification Left, 29th Oct., 1897--Accepted, 11th Dec., 1897
PROVISIONAL SPECIFICATION.
'Improvements in or connected with Taking-off Mechanism of
Varnishing and like Machines."
I, EDMUND BUSH, of Hunslet Road, Leeds, in the County of York, Engineer, do
hereby declare the nature of this invention to be as follows:-
Much difficulty has hitherto been experienced in removing coated sheets from
varnishing and like machines, especially in cases where very thin or limp paper is
employed, owing to the tendency of the said sheets adhering to the cylinder and thus
failing to feed over the fingers onto the taking-off bands.
The object of my invention is to provide suitable mechanism, whereby the front of
the sheet is lifted away from the cylinder on the release of, the grippers, the said
sheet being thus held until it engages with the fingers and passes to the travelling
bands.
According to my invention, I mount a rocking shaft near the grippers in the
cylinder, the said shaft tending to keep in one direction by reason of a spring which
takes its bearing on the cylinder. On the end of the rocking shaft an arm is mounted,
carrying a friction roller on its outer end; and an adjustable incline is provided on
the frame of the machine, for the purpose of actuating the friction roller and thus
rocking the shaft. At equal distances on the rocking shaft, I mount a series of arms
having forked ends, which rest between the gripper fingers and within the cylinder
when they are in the back position; but on the rocking of the shaft, the said arms
move out between the gripper fingers to a distance which has been predetermined by
the setting of the incline.
The sheet is fed to the cylinder and the grippers take hold of the sheet in the
ordinary way, the ends of the forked arms resting behind the front edge of the said
sheet. At the moment when the grippers open, the roller comes in contact with the
incline,thereby rocking the shaft, and the forked arms moving outward with the rocking
of the said shaft, lift the front edge of the sheet away from the surface of the cylinder
However limp or
and deposit it over the fingers leading to the taking-off bands.
thin the sheet happens to be, the front edge will be easily lifted away from the
cylinder by the forked arms, and as the fingers pass between the forks with the move-
ment of the cylinder, the closest contact is obtained, thus ensuring the transfer of
the sheet to the travelling bands.

page_text: "Improvements in or connected with Taking-off Mechanism of
Varnishing and like Machines."
-I, EDMUND BUSH, of Hunslet Road Leeds, in the County of York, Engineer, do
hereby declare the nature of this invention and in what manner the same is to be
performed to be particularly described and ascertained in and by the following
statement:-
Much difficulty has hitherto been experienced in removing coated sheets from
varnishing and like machines, especially in cases where very thin or limp paper is
employed, owing to the tendency of the said sheets adhering to the cylinder and thus
failing to feed over the fingers onto the taking off bands.
The object of iny invention is to provide suitable mechanism, whereby the front of
the sheet is lifted away from the cylinder on the release of the grippers, the
said sheet being thus held until it engages with the fingers and passes to the
travelling bands.
In order that my invention may be clearly understood, I will proceed to describe
same with reference to the accompanying drawing, in which similar letters refer to
like parts in all the figures.
Figures 1, 2, and 3 are transverse sections, shewing a portion of machine with my
invention applied thereto. Figure 4 is a front elevation of the mechanism
in the position shewn at Figure 2, and Figure 5 is an end elevation of the
same.
According to my invention, I mount a rocking shaft A within the cylinder B at a
suitable distance from, and relative to, the gripper shaft C. On the rocking shaft A
and at equal distances apart, I mount a series of arms D having forked ends E, the
said arms D being placed on the shaft A in the alternate position to that of the
grippers F on the gripper shaft C. On the end of the rocking shaft A and outside
the cylinder B, an arm G is mounted carrying a friction roller H at its outer end;
and an adjustable incline J is provided on the frame K of the machine, for the
purpose of actuating the arm G through the medium of the friction roller H, and
thus rocking the shaft A. A stop L is provided on the outside of the cylinder B,
against which the arm G of the rocking shaft A is elastically held by means of a
spring M, which latter is arranged within the cylinder B, in such a manner that the
arms D of the shaft A are kept always within the cylinder B, except when rocked
outward by the incline J.
The sheet N is fed to the cylinder B and the grippers F take hold of the sheet in
the ordinary way, the forked ends E of the arms D) resting behind the front edge of
the sheet N as shewn at Figure 1. At the moment when the grippers
open, the
friction roller H of the arm G comes in contact with the incline J, thereby rocking
the shaft. A and moving the arms D with their forked ends E outward, which has the
effect of lifting the front edge of the sheet N away from the surface of the cylinder B
as shewn at Figure 2. The cylinder B in continuing its rotation, causes the
stationary fingers P to pass in between the forked ends E of the arms D and under
the front edge of the sheet N as shewn at Figure 3, thereby transferring the sheet N
to the travelling bands R, which carry it clear of the machine.
However limp or thin the sheet N happens to be, the front edge will be easily
lifted away from the cylinder B by the forked ends E of the arms D, and the fingers P
in passing in between the said forked ends E as above described, ensure the transfer
of the sheet N to the travelling bands R.
Having now
narticularly described
and
ascertained the

page_text: invention and in what manner the same is to be performed I declare that what I
claim is :-
1. The arms D mounted on the rocking shaft A, in combination with stationary
fingers P, substantially as and for the purposes set forth.
2. The combination of the rocking shaft A, grippers F, arms D, forked ends E,
fingers P, and travelling bands R, substantially as and for the purposes set
forth.
3. The combination of the shaft A, cylinder B, shaft C, arms D, forked ends E,
grippers F, arın G, roller H, incline J, stop L, spring M, fingers P, and bands R,
substantially as and for the purposes set forth.
Dated this 25th day of Oct
BREWER & SON
London and Leeds. Agents for the Applicant.
BREWER & SON
London and Leeds. Agents for the Applicant.