Year: 1887

page_text: Date of Application, 29th Aug., 1887
Complete Left, 21st Oct., 1887
Complete Accepted, 22nd Nov., 1887
I WILLIAM JACKSON of Thorn Grove Mannofield Aberdeen North Britain
Gentleman do hereby declare the nature of this Invention to be as follows:-
My Invention relates to machinery or apparatus for rolling tea leaf in which there
are opposing plates or surfaces (usually dished or partially dished out) both of which
have motion imparted to them for effecting the rolling or curling of the leaf.
Three or more crank shafts are employed for operating and guiding the said plates
or surfaces each crank shaft being provided with two cranks or crank pins one for
operating and guiding the upper plate or surface and the other for operating and
guiding the lower plate or surface.
The smaller plate or surface (the one which regulates the pressure) is contained in
a case or jacket which has the bearings for one set of cranks formed in or fixed to it
and through the medium of which the said plate or surface receives its motion.
The other or larger plate or surface has the bearings for the other or second set of
cranks formed in or fixed to its edges.
It will be understood therefore that the two opposing rolling plates or surfaces are
carried upon and receive motion from and are controlled in their motion by one set
of crank shafts each with two sets of cranks or crank pins and the leaf is rolled
between the surfaces.
The frame work is so constructed that the portion of it which carries the driving
gearing can be turned round or adjusted to any position which may be most convenient
for receiving the driving band or other means for transmitting motion from the prime
mover.
I may employ in connection with the upper plate or surface a screw and a hand
wheel working on the said screw by which the plate or surface can be moved in the
case or jacket away from the opposed plate or surface to permit of the leaf being fed
under it by means of a hopper and the pressure on the charge of leaf under treatment
is also controlled by the said screw and hand wheel.
The lower rolling plate or surface may have a discharging trap door formed in the
bottom of the dished part for the discharge of the rolled or curled leaf.
Dated this 29th day of August 1887.
J. H. JOHNSON & Co.,
47, Lincoln's Inn Fields, London,
Agents for the said William Jackson.

page_text: I WILLIAM JACKSON of Thorn Grove Mannofield Aberdeen North Britain
Gentleman 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:-
My Invention relates to machinery or apparatus for rolling tea leaf in which there
are opposed plates or surfaces (usually dished or partially dished out) both of which
have motion imparted to them for effecting the rolling or curling of the leaf.
According to my invention three or more crank shafts are employed for operating
and guiding the said plates or surfaces each in a separate circular path each crank
shaft being provided with two cranks or crank pins the upper ones being for operating
and guiding the upper rolling plate or surface and the lower ones being for operating
and guiding the lower plate or surface.
The rolling plate or surface by which the pressure is regulated is contained in a case
or jacket which has the bearings for one set of cranks formed in or fixed to it and
through the medium of the said case or jacket the said plate or surface receives its
motion.
The other or larger plate or surface has formed in or fixed to it (preferably at its
edges) the bearings for the other or second set of cranks.
It will be understood therefore that the two opposing rolling plates or surfaces
receive their motion from and are controlled in their motion by one set of crank
shafts each with two cranks or crank pins and that the said plates or surfaces may be
carried entirely by these crank shafts.
The framework may be so constructed that the portion of it which carries the
driving gear can be turned round or adjusted to any position which may be most
convenient for receiving the driving belt or other means of transmitting motion from
the prime mover.
to
my
The accompanying drawing represents a tea rolling machine constructed according
Invention Figure 1 being an elevation Figure 2 a plan and Figure 3 an elevation
at right angles to Figure 1 and with the screw and adjuncts removed. C is the upper
plate or rolling surface and G is the larger and under plate or rolling surface dished
in the centre and it may have a discharging door formed in the bottom of the dished
part for the purpose of discharging the rolled or curled tea leaf. Hare bearings at
the edges of the plate G. The plate C is contained in a case or jacket E having
bearings Fattached to it, A is a screw and B a hand wheel for rotating on it by which
the plate can be moved in the said case or jacket E away from the opposed plate
or surface G to permit of the tea leaf being fed under it by means of a hopper D and
the pressure on the charge, of leaf under treatment is also controlled by the said
screw and hand wheel. J. J. are pillars having bearings which carry two of the
crank shafts which act principally as guides or controllers K is the bracket or portion

page_text: of the machine which carries the driving shaft O with fast and loose pulleys at O².
This bracket and driving shaft are capable of movement by rotation between the
supports of the boss of the bracket above and below so that the pulleys 02 may if
necessary be turned to the opposite side of the machine or be brought to any inter-
mediate position between the two sides. M. M. M. are three cranks on the three shafts
mounted and capable of turning respectively in the pillars J and supports and boss
of the bracket K, and N N N are three other cranks a crank M and N being on each*
shaft. The throws of the cranks M are not necessarily equal to those of the cranks N.
The cranks M are situated in the bearings F of the jacket E and so the said cranks
drive and guide the upper plate C and the cranks N are situated in the bearings H and
so drive and guide the plate G.
R. S are bevel wheels for driving the crank shaft to which the wheel S is fixed.
For allowing the adjustment and fixing of the driving shaft OI may make the two
surfaces of the supports between which the motion of rotation is performed one with
a dovetail circular groove or track X in it and the other with holes for bolts Y with
dovetail heads engaging in or with this groove or track and provided with screwed
nuts by which the moveable part may be fixed or released but it can be adjusted and
fixed in any other convenient way.
The tea leaf is fed by the hopper D between the plates C and G and after the rolling
or curling is performed the leaf is removed through the discharge door.
Having now particularly described and ascertained the nature of my said
Invention and in what manner the same is to be performed I declare that what
1 claim is:
First: A machine for rolling tea leaf having three or more crank shafts each with
two cranks one crank of each shaft directly driving or guiding one rolling plate or
surface and the other of the cranks on the same shaft directly driving and guiding
the other rolling plate or surface substantially as herein before described.
Second-In tea rolling machines an arrangement whereby the driving shaft can be
brought into any convenient position for receiving its motion from the prime mover
substantially as hereinbefore described.
Third A tea rolling machine consisting of the arrangement and combination of
parts hereinbefore described and illustrated in the accompanying drawings.
Dated this Eighteenth day of October 1887.
WILLIAM JACKSON.