Waterproofing and Preserving Composition for Stone, Bricks, also for Plaster and Cement Surfaces.
Year: 1890

page_text: Date of Application. 22nd Jan., 1890
Complete Specification Left, 22nd Oct., 1890-Accepted, 22nd Jan., 1891
PROVISIONAL SPECIFICATION.
Waterproofing and Preserving Composition for Stone, Bricks, also
for Plaster and Cement Surfaces.
I, WILLIAM SINCLAIR, of 78, Beverley Road, Hull, Yorkshire, Gentleman, and
MURDOCH MACKAY, of 11, Queen Victoria Street, City of London, Manufacturing
Chemist, do hereby declare the nature of this invention to be as follows:-
The object of this invention is to make a liquid compound which shall, when applied
by a brush to stone, brick, plaster and cement surfaces, render them impervious to
moisture, the compound soaking well into the body without leaving the objectionable
look of paint or varnish as is usual.
For the purpose of this invention, we dissolve 1 lb. gum "dammer" in 1 gallon of
hot turps, or hot mineral spirit, and then add 2 lbs. parafine wax which will dissolve
itself in the hot liquor. This liquid compound, when cold, can be brushed on to the
surface, or surfaces to be waterproofed and be thereby preserved from the action of
acids or alkalies in the atmosphere and if dirty with soot, such dirt can be removed by
ordinary water, or by a solution of household soila and water.
The liquid compound can be kept ready for use in bottles or jars carefully corked.
D
H. GARDNER,
166, Fleet Street, London, Agent for the said W. Sinclair.
COMPLETE SPECIFICATION.
Waterproofing and Preserving Composition for Stone, Bricks, also
for Plaster and Cement Surfaces.
We, WILLIAM SINCLAIR, of 78 Beverley Road, Hull, Yorkshire, Gentleman, and
MURDOCH MACKAY, of 11 Queen Victoria Street, City of London, Manufacturing
Chemist, 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 :-
The object of this invention is to make a liquid compound which shall when applied
by a brush to stone, brick, plaster, and cement surfaces, render them impervious to
moisture, the compound soaking well into the body without leaving the objectionable
look of paint or varnish, as is usual.
For the purpose of this invention, we dissolve 1 lb. gum " dammer"
in 1 gallon of
hot turps or hot mineral spirit, and then add 2 lbs. paraffine wax, which will dissolve
itself in the hot liquor. This liquid compound when coid can be brushed on to the
surface or surfaces to be waterproofed and be thereby preserved from the action of
acids or alkalis in the atmosphere. If the surface be dirty with soot, such dirt should
be first removed by ordinary water, or by a solution of household soda and water.
The liquid compound can be kept readily for use in bottles, or jars carefully corked.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed we declare that what we
claim is :-
66
1. The combination of gum dammer," turpentine (or a mineral spirit) and
paraffine wax as a composition for surface coating and waterproofing stone, brick,
plaster and cemented surfaces, as described.
2. The above described method of manufacturing a waterproofing and preserving

page_text: liquid compound for application to exposed walls of buildings, or structures, as set
forth.
The 22nd day of January 1800
H. GARDNER,
Patent Agent, 166, Fleet Street, London,
Agent for the said William Sinclair and Murdoch Mackay.