Improvements in the Manufacture of Earthenware Measures.
Year: 1893

page_text: Date of Application, 23rd Mar., 1893
Complete Specification Left, 22nd Dec., 1893-Accepted, 10th Feb., 1'94
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Earthenware Measures.
We, ELI BARKER, GEORGE BARKER, JOHN BARKER, and JAMES KENT,
trading as Messrs. Barkers & Kent, of The Foley Potteries Longton, Staffordshire,
Earthenware Manufacturers, do hereby declare the nature of this invention to be
as follows:-
In manufacturing earthenware measures difficulty is experienced in obtaining
accuracy owing to the material shrinking uncertainly more or less during firing,
and various devices have been suggested for correcting the inequalities thus
produced.
According to this invention the vessel is formed in clay of such a size that if fired
it would contain more than the desired quantity and a notch is then cut in its upper
edge of such a depth as to reduce the capacity to less than is desired. The vessel
is then fired and is tested whilst in the biscuit state and the notch is filled up more
or less until the measure holds the desired quantity and no more. The whole is
then glazed which secures the filling to the substance of the vessel. The filling
consists of a block of clay prepared and fired-the blocks being made of various
sizes so as to provide for the amount of the shrinkage which differs in almost every
case..
It is not imperative that the notch should be filled up by means of a clay block
any other suitable material would do and might be fixed by other means than
glazing and after the vessel had been glost fired if thought advisable.
Dated this 22nd day of March 1893.
ELI BARKER.
GEORGE BARKER.
JOHN BARKER.
JAMES KENT.
COMPLETE SPECIFICATION.
Improvements in the Manufacture of Earthenware Measures.
We, ELI BARKER, GEORGE BARKER, JOHN BARKER, and JAMES KENT,
trading as Messrs. Barkers & Kent, of The Foley Potteries, Longton, Staffordshire,
Earthenware Manufacturers, 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 :-
In manufacturing earthenware measures difficulty is experienced in obtaining
accuracy owing to the material shrinking uncertainly more or less during firing,
and various devices have been suggested for correcting the inequalities thus
produced.
According to this invention the vessel is formed in clay of such a size that if
fired it would contain more than the desired quantity and a notch is then cut in its
upper edge of such a depth as to reduce the capacity to less than is desired. The
vessel is then fired and is tested whilst in the biscuit state and the notch is filled up
more or less until the measure holds the desired quantity and no more.
The whole
is then glazed which secures the filling to the substance of the vessel. The filling
consists of a block of clay prepared and fired-the blocks being made of various

page_text: sizes so as to provide for the amount of the shrinkage which differs in almost
every case.
It is not imperative that the notch should be filled up by means of a clay block
- any other suitable material would do and might be fixed by other means than
glazing and after the vessel had been glost fired if thought advisable.
sizes so as to provide for the amount of the shrinkage which differs in almost
every case.
It is not imperative that the notch should be filled up by means of a clay block
- any other suitable material would do and might be fixed by other means than
glazing and after the vessel had been glost fired if thought advisable.
DESCRIPTION OF THE DRAWINGS.
Figure 1 is a side elevation of an earthenware measure made according to this
invention and Figure 2 is a section on the line X X Figure 1.
A is the notch and B the block of clay by which it is partly filled, various sizes
of the latter being shown at Figures 3.
Having now particularly described and ascertained 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. An earthenware measure of larger size than will hold the desired quantity
having a notch in its upper edge of such a depth as to reduce the capacity to
less than is desired such notch being more or less filled up substantially as
described.
2. In the manufacture of measures such as are referred to in the preceding
claim securing the filling in the notch by the glazing substantially as described.
3. The manufacture of earthenware measures substantially as described.
Dated this 21st day of December 1893.
ELI BARKER.
GEORGE BARKER.
JOHN BARKER.
JAMES KENT.
ELI BARKER.
GEORGE BARKER.
JOHN BARKER.
JAMES KENT.