Improved Means for Preparing the Prints used in Printing Potters Ware, and Apparatus therefor.
Year: 1889

page_text: Date of Application, 28th Nov., 1889
Complete Specification Left, 28th Aug., 1890-Accepted, 18th Oct., 1890
PROVISIONAL SPECIFICATION.
Improved Means for Preparing the Prints used in Printing Potters
Ware, and Apparatus therefor.
We, THOMAS WALLIS GIMSON of Duke Street Flenton, in the County of Stafford,
Manufacturer, WILLIAM KENT of North Road Cobridge in the County aforesaid
Engineer, and THOMAS BANKS of Whieldon Road Stoke-on-Trent in the County
aforesaid Potters' Manager, do hereby declare the nature of this invention to be as
follows:-
Our present invention relates to means for preparing the prints used in printing
potters' ware and apparatus therefor, and the objects thereof are firstly: The use of
mechanical or motive power other than manual which have hitherto been employed;
secondly: Employing means whereby less wear and tear is secured on the engravings
when preparing the same, and thirdly: Employing means for heating the stove by
exhaust steam instead of live steam as hitherto; to attain which we construct an
apparatus in the following manner that is to say: We employ a suitably formed iron
table under the face or top of which we arrange two steam stoves or chambers con-
structed with inlet and outlet pipes for the free circulation of the exhaus. steam which
we pass through the same in order to conduct the necessary amount of heat to the
copper-plate having the engraving thereon, and which plate we fix on the top of one
of the said steam stoves, and the other steam chamber or stove is used for the purpose
of keeping the colour or printing material at the required temperature as will be well
understood.
The top or face of the table is preferably of an oblong shape and across the same
we arrange a roller or drum which is carried by two uprights in such a manner that
it may be adjusted so that its periphery may press down upon or towards the table
with a desired pressure. The said uprights are carried by means of suitable runners
or small rollers which rest upon a track arranged at each side of the table so that
they are free to receive a reciprocating motion and consequently impart the same to
the roller or drum; and in order to give power to this by mechanical instead of
manual means we connect the before described uprights by a suitable rod or rods
to a slotted lever which is keyed onto a rocking shaft the said rocking shaft
being carried by bearings made with or attached to one end of the table; this said
shaft has also another slotted lever secured to it, which is connected to a disc or
crank by means of a suitable connecting rod; the said dise or crank being keyed
or otherwise secured onto the end of a borizontal shaft which is preferably situated or
supported at the lower part of the end frame of the table. The horizontal shaft
which carries the disc has also a worm wheel secured to it which gears with a
worm fixed to a vertical spindle, at the upper part of which so as to be clear of
the operator is either a fast or loose pulley to suit a strap or a grooved pulley to
suit a rope or band.
The machine may be set in motion either by means of a suitable belt motion or
in any other ordinary mechanical way which will cause the belt or band to press
onto and so revolve the fast, flat, or grooved pulley, or it may be stopped at will
by the operator throwing the band or strap by suitable mechanical means from
said pulley.
Dated this 27th day of November 1889.
H. F. BOUGHTON, M.1. M. 12.9.
Barnsley and Sheffield, Agent.

page_text: COMPLETE SPECIFICATION.
Improved Means for Preparing the Prints used in Printing Potters'
Ware, and Apparatus therefor.
We THOMAS WALLIS GIMSON of Duke Street Flenton in the County of Stafford
Manufacturer and WILLIAM KENT of North Road Cobridge in the County of
Stafford Engineer and THOMAS BANKS of Whieldon Road Stoke-on-Trent in the
County aforesaid Potter's Manager 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 :-
+
Our invention relates to means for preparing the prints used in printing potters
ware and apparatus therefor and the object thereof is to employ means whereby less
wear and tear is secured upon the engravings and the preparation of the said
engravings or prints in a quicker and more economical manner than has been
done hitherto to attain which we construct an apparatus as set forth in the accom-
panying sheet of drawings which are to be taken as part of this Specification and
read therewith.
Fig. 1 is a longitudinal elevation of our new or improved apparatus or machine.
Fig. 2 is an end elevation.
Like letters of reference denote corresponding parts in each view.
The said apparatus or machine is composed of a suitable iron table A under the face
or top of which are arranged two exhaust steam stoves or chambers B and C which
are constructed with inlet and ontlet pipes d and e respectively in order to allow
a free circulation of the said exhaust steam for the heating of the said stoves or
chambers B and C.
Upon the stove B is placed the copper plate having the desired design or
engraving thereon.
The stove C is used for the purpose of keeping the colour or printing material
at the required temperature as will be well understood.
The top or face of the table A is preferably of an oblong shape as shown in plan
Fig. 3 and across the same we arrange a roller or drum F which is carried upon two
uprights G in such a manner that it may be adjusted so that its periphery may press
down upon or towards the table A with a desirable amount of pressure that is to say
the journals f¹ of the roller F bear in and are carried by suitable blocks g' which are
free to move or slide vertically in the gaps g² formed in the uprights G. The blocks gl
are pressed down by means of the spiral springs and the said pressure may be
regulated by means of turning or adjusting the screws j.
The uprights G are supported upon suitable runners or small rollers g³ which bear
upon a track K arranged with or fixed to each side of the table A by this means the
said uprights G are free to receive a reciprocating motion which is imparted in
the following manner:
A connecting rod M is preferably made in the form shown at Fig. 3 its fork shape
part receives the extended ends of the journals or spindles f¹ of the roller or drum F
and the opposite end of the said rod M is coupled up to the slotted lever N which is
keyed on to a rocking shaft P the said rocking shaft P being carried in the
bearings a² made with or attached to the table A. The said shatt P receives also
another slotted lever Q which is connected to the driving disc or crank S by means of
the rod R. The crank S is keyed or otherwise secured to a horizontal shaft T which
is carried by preference at the lower part of the table A in the bearings a*. The
shaft T also carries a worm wheel U which gears with a worm L secured to the lower
part of the vertical spindle W. At the upper end of the said spindle W and so as to
be clear of the head of the operator is a grooved pulley X which receives the
driving rope y.
Any ordinary arrangement may be employed for starting and stopping the said
machine or apparatus and where preferred the grooved pulley X may be replaced by a
fast and loose pulley driven in the usual way by a strap and having any ordinary belt

page_text: motion. The potters prints are prepared and our improved apparatus is worked in
the following manner: The colour or printing matter is placed upon the exhaust
steam stove or chamber C the heat from which keeps the said matter in the necessary
fluxy condition so that it may be easily spread by the operator upon the copper plate.
After placing a sufficient quantity thereon the face of said copper plate is scraped so
as to remove the printing matter from the face of the plate as much as possible and
what may be left thereon is then "bossed off" in the usual manner by means of an
ordinary bosser. After having prepare the plate z in this manner the paper which is
to receive the print is placed upon the plate z and the apparatus or machine is set in
motion by which means the periphery of the roller F reciprocates thereon at the
requisite pressure so that the paper is caused to quickly and effectually extract the
colour from the plate and receives the engraving or design after which it is removed
and employed as a print for potters' ware in the ordinary way.
The recess a in the table A shown at Figs. 1 and 3 provides for a suitable metal
plate (not shown) which is used for cleaning the cloth_bosses.
Where preferred the driving spindle W worm L and worm wheel V may be
removed and a treadle or handle may be arranged to revolve the crank or disc U in
which case the operator may work the machine himself.
Having now particularly described and ascert: ined the nature of our said inven-
tion and in what manner the same is to be performed we declare that what
we claim is,
1. In means employed for preparing the prints used in printing potters' ware the
use of an apparatus or machine constructed with a table A and exhaust steam stoves
or chambers B and C in combination with a reciprocating roller F capable of having
its downward pressure regulated substantially as described and illustrated by means
of the accompanying sheet of drawings.
2. In means for preparing the prints used in printing potters' ware the use of the
apparatus substantially as hereinbefore described and set forth at Figs. 1, 2 and 3 of
the drawings annexed.
Dated this 26th day of August 1890.
H. F. BOUGHTON, M.I. Mech. E.,
Barnsley and Sheffield, Agent.