Year: 1898

page_text: I, WILLIAM ROWLANDSON, of 132, Boundary Street, in the City of Liverpool,
Engineer, do hereby declare the nature of this invention to be as follows:-
This invention has for its object a two ram tobacco press or for pressing other
like material, and consists essentially in a revolving table having four moulds on
diameters on the revolving table at right angles to each other. When two of
the moulds come exactly over two of the rams the table comes against a stop and
can go no further in its rotation. When it is rotated in the opposite direction and
the other two moulds come over the rams again the table comes against a stop
and can go no further. A rack and pinion device on the same side of the table
as the ram presses the tobacco out of the holes after ramming. I may ram
several packets of tobacco at a time in the same hole if desirable placing a plate
filling the area of the mould between each packet. The ram can either press
downwards, upwards or horizontally. I prefer it to press upwards against a head
plate. The mode of action is as follows:-The table being revolved till it comes
against the stop two of the moulds are filled with tobacco, the plungers are now
caused to descend pressing the tobacco. In some instances where I press several
packets one over the other they can all be placed in at once or I press one packet,
then place a disc over it, place another disc over that and place a third, or I may
only press a single packet at a time. The ram now rises, the table is turned till
a projection on it comes against the other stop and the rams are caused to press
the alternate moulds which in the meantime have been filled. While the ram is
pressing these the rack and pinion device lifts the material already pressed out of
the other moulds; this is removed, the rack lowered and the two moulds filled
again with tobacco ready for pressing in their turn. In thus describing my in-
vention I do not bind myself to a rack and pinion ejector as it is obvious that
especially in cases where the pressure is downward a lever device, a screw device
or other like mechanism can be employed as an ejector.
I, WILLIAM ROWLANDSON, of 152, Boundary Street, in the City of Liverpool,
Engineer, do hereby declare the nature of this invention and in what manner the
Price 8d.1

page_text: same is to be performed, to be particularly described and ascertained in and by the
following statement:
This invention has for its object a two ram press for pressing tobacco or other
like material.
It is best described by aid of the accompanying drawings, in which,
Fig. 1 is an elevation of the entire apparatus,
Fig. 2 a plan view of the central or rotating part,
Fig. 3 a plan view of the press with the top and rotating parts removed.
In these AA are the hydraulic cylinders, BB bolt standards fastening C the
top member firmly to the lugs D on the cylinders. E is a bolt passing through
the three parts of the apparatus fastened by nuts at top and bottom and acting
as an axis on which the part shown in Fig. 2 turns. G the rotating table shown
in Fig. 2. This is formed with a flat upper surface having four large square
sockets H at four points equi distant from each other and equi distant from the
centre bolt E, the lines connecting the centres of these sockets and the centre
of the bolt being at right angles to each other. II are two beaks cast or rigidly
fixed on the rotating part G and so placed that the part G can only rotate through
an angle of exactly ninety degrees owing to beaks I coming in contact with the
bolt B; any other abutment than bolt B could be used for this purpose. J is the
head plate of the plunger K. L shown in dotted lines in Fig. 1 is the bearing of
the rotating piece G. MM two holes in the base plate N through which a
rack and pinion or other device rises immediately after the table G has been turned
round so as to press up the packet of tobacco that has been pressed.
The mode of action is as follows;
-
Two men stand each of them on one side of the two rams. A plate is placed
over the plunger accurately fitting the socket H. The tobacco required to be
pressed into a packet is placed on this plate and another plate is generally placed
above. Each of the men having done this with their respective sockets the table G
is turned a quarter round and the press caused to descend. In the meantime the
men are each getting tobacco to press, and the rack and pinion ejects the packets
which have been previously pressed. The men move these packets away and as
the rack descends carry on the procedure already described. In thus describing
my invention it is obvious that the press can be made to press upwards, down-
wards, or even horizontally or obliquely. Also sockets can be made deep enough
for packets to be pressed one above another each being separated by a socket plate.
Furthermore if the stopping mechanism be very accurate the plunger head can be
made the exact area of the socket and thus the use of plates could be done away
with. I prefer however to use plates and one great advantage of using plates
is that very exact registration between the plunger and the socket is not requisite
as the plunger being made of considerably less diameter than the socket plate
or the socket hole a considerable latitude can be allowed. The great advantage of
this machine is that two men can be occupied over it and that while two packets
are being pressed the packets which have been already pressed can be withdrawn
and the unpressed material can be collected on the side of the socket and be placed
in the socket ready for pressing and thus there is the least possible waste of
time.
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
I claim is:
―
1. The improvement in tobacco or other like presses which consists in having
two rams and four sockets the latter rotating round a centre exactly equi distant
and in line with the axes of the two rams whereby while the tobacco in one pair
of sockets is being pressed the operators can be removing the already pressed
packets and preparing the free sockets for receiving the rams in their turn sub-
stantially as described.

page_text: 2. The apparatus for pressing tobacco constructed and arranged substantially as
herein described and illustrated in the accompanying drawings.
Dated the 26th day of November 1898.
WM. P. THOMPSON & Co.,
Of 6, Lord Street, Liverpool, Patent Agents for the Applicant.