An Improved Filling-up Paste or Putty, applicable for Forming a Smooth Surface for Painting and for other like purposes.
Year: 1895

page_text: PROVISIONAL SPECIFICATION.
An Improved Filling-up Paste or Putty, applicable for Forming a
Smooth Surface for Painting and for other like purposes.
I, JAMES MCMASTER of 25 Tunstall Street, Smithdown Road, Liverpool in
the County of Lancaster, Artist for Milners' Safe Co. Ltd. do hereby declare the
nature of this invention to be as follows:
This invention has for its object a filling-up or levelling paste or putty
applicable for forming a smooth surface for painting and for other like purposes.
In one form it consists of
An Improved Filling-up Paste or Putty, applicable for Forming a
Smooth Surface for Painting and for other like purposes.
I, JAMES MCMASTER of 25 Tunstall Street, Smithdown Road, Liverpool in
the County of Lancaster, Artist for Milners' Safe Co., Ltd., 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:-
This invention has for its object a filling up or levelling paste or body applicable
for forming a smooth surface for painting and for other like purposes. It is formed
essentially of mineral constituents, gums and varnishes so proportioned that they
will form a hard tough material when dried, adhering strongly to the surface to
which they are applied will have an intensely smooth surface and will not crack.
The best proportions I have found so far are as follows but these can be varied to
[Price 8d.l

page_text: suit circumstances, such as variations in temperature and the special purposes for
which the material is used.
Whiting
Fine plaster
White lead
Red lead
Terebene
-
White hard spirit varnish
Oak varnish
about 6 parts
دو
"
3 parts
6 parts
"
part
"
2 parts
1 parts
"
1 part.
دو
The whiting forms the body of the material, the fine plaster assists in producing
a marble-like surface, the white lead increases the coherency of the material and
enables it better to mix with and to a certain extent saponify the varnish, the red
lead is more for colouring matter and in some cases I may use slate powder instead
of red lead or instead of some of the white and red lead. The terebeue enables the
material to dry quickly and is cheap. The white hard spirit varnish and the oak
varnish prevent cracking and enable the material to take paint over it very readily.
It will be obvious from the above that the receipt can be very largely altered
without materially interfering with its effectiveness. It is even sometimes desirable
to mix turpentine with it or other solvent to increase its plasticity and the quantity
of the various ingredients can be very greatly altered without materially interfering
with its utility, the mineral constituents all more or less replacing each other and
other fine pulverulent mineral material can be used as substitutes for the whiting
or slate powder and even in part for the white lead or the fine plaster. In the
same way the various forms of gum and varnish or boiled oil already mentioned
can be substituted in a great measure the one for the other, but the quantity of
the mineral constituent on the one hand and on the other hand of the gums or
varnishes should be relatively those mentioned. Furthermore almost any coloured
metallic oxide can be used instead of red lead as a colouring matter so as to make
the filling-up approximately the same colour as the paint to be placed over it or
the structure on to which it is to be laid.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, 1 declare that what I
claim is :-
A filling up or levelling paste or body consisting of mineral materials and
varnish materials with or without colouring matter substantially as herein
described.
344 HIS
1000
WM. P. THOMPSON & Co.,
Of Liverpool, Manchester, Birmingham, and London, Patent Agents.