An Improved Composition or Plaster for the Treatment of Walls and the like.
Year: 1889

page_text: COMPLETE SPECIFICATION.
An Improved Composition or Plaster for the Treatment of Walls
and the like.
I, JOSE BERRE KING, of West Brighton, County of Richmond, and State of New
York, United States of America Manufacturer, do hereby declare the nature of my
invention for MATERIAL FOR THE TREATMENT OF WALLS AND THE LIKE, and in
what manner the sanie is to be performed, to be particularly described and
ascertained in and by the following statement :-
My invention relates to a composition of matter by which walls, ceilings or the like
can be treated or from which busts, architectural works, etc., can be made, or
which can be used in the arts and manufactures for any purpose which may be
desired.
My invention consists in the composition of matter made from the ingredients
hereinafter set forth, and pointed out in the claims.
I proceed for the production of my invention, as follows:
I take any mineral, earth, stone or stone-like material--among the latter being
marble, chalk, plaster, lime, or the like. Any one of these before-mentioned materials
I grind, preferably reducing it to a fine powder. When I use lime, I, by preference,
hydrate it by slacking it with water, thereby producing what is known as hydrated
lime. I then take this hydrated lime, dry it in any suitable manner, and grind or
comminute it, preferably reducing it to a fine powder.
I dissolve any animal gelatinous, vegetable, glutinous or saccharine matter, or any
other substance which possesses the quality of acting as a restrainer of plaster, in
water, warm or cold as may be preferred. There are a number of these substances
now well-known and they do not require enumeration here. Of them all, however,
for the purpose of this composition of matter, I prefer glue, because of a peculiarly
beneficial result following its use arising from a toughening and strengthening action,
which renders the resulting wall material, whether a base coat or a finish coat, very
strong, and durable.
The restraining material, whatever it may be, as stated, I thoroughly mix with any
of the finely ground materials before set forth. More or less of the dissolved restraining
material can be used, as desired.
To make what I call a "stronger product" more of the restraining material is used.
To make a less strong product, less of it is used. I have found that for ordinary purposes
a mixture of, for example, four pounds of glue may be dissolved in about 10 pints of
water.
This fluid mass will wet a certain amount of ground stone, (or any of the other
materials set forth, in their proper proportion) say about 12 lbs. weight not much more
or less, so as to form a pasty mass.
This pasty mass I then dry, either by artificial or natural heat and in such form as
preferred, and the result will be a dry cake or crust-like mass. It might also be said,
under certain conditions, to be a comparatively hard stone like mass.
Various drying
methods may be used.
I powder or finely divide this dried material, in whatever form it may have been
dried, by grinding or in any other suitable way, and when this is done, I have pro-
duced a powdered compound, which I call a "restrainer" and which is added to the
materials hereinafter set forth, to restrain the setting action.
I provide for the purpose of mixture, by preference, a mechanical mixer, in which
I place plaster or like material, and then add the powdered restrainer in any desired
quantity to restrain the setting action. As an example I may state that 3 pounds of
the restrainer to 400 pounds of plaster gives good results; but I do not tie myself to.
this proportion.

page_text: I take any fibrous material such as asbestos, mineral wool or the like, and grind or
comminute it to a comparatively fine powder. I prefer asbestos. This finely divided
fibrous material I place in the mixer, as before stated, in which has been previously
placed the restrainer and plaster or like material, and thoroughly mix and combine
them together in the proportion of about one quarter lb. of fibre to 100 lbs. weight of
material; and after being so thoroughly mixed the resulting composition of matter
may be placed in barrels or packages for shipment or dealt with as desired.
I have found by actual use that the addition of the above-described fibrous materials,
especially asbestos, with the other materials set forth, renders the resulting wall
material, or plastic body, more tenacious, strong, lighter, and possessing greater
advantages than any other plaster compound, so-called, at present known to me; and
among the most important and valuable of all the advantageous features obtained by
its use, is the hard and highly polished surface it produces, and the ease and quick-
ness of its handling.
When this compound is to be used, it is preferable in all cases to intimately mix it
with water, while it is in a dry condition.
This compound is very useful not only for admixture with the materials forming the
base or brown coat for walls and the like; but, under certain conditions, and owing
to the presence of the fibrous material, it may be employed as a single coat, taking
the place of the base and finish coat, thus saving time, labor, and expense, and
making a strong, durable, and light wall covering.
Other materials, such as coloring matter, sand, etc., may be added to the compound.
but these I do not claim herein.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim, is:
1. The above described composition of matter, composed essentially, of a restraining
material, ground-stone, or its equivalents, and a fibrous material, such as asbestos, or
its equivalents, as set forth.
2. The above described composition of matter, composed essentially, of a restraining
material, ground stone, or its equivalents, and a fibrous material, such as asbestos, or
its equivalents, reduced to a finely divided condition and combined, as set forth.
Dated this Eighth day of Jul. 1900
H. B. RARLOW,
17, St. Ann's Square, Manchester, Agent for Applicant.