US1635982A - Elastic composition floor - Google Patents

Description

reamed m 19, 1927.

UNITED STATES runs-arc n. BOELKOW, or wauwa'rosan'nn rarnnnrcn WILHELM o'r'ro ns'rmer PATENT OFFICE.

- OI NOBTH IILWAUKEE, WISCONSIN, ASSIGNORS TO DURABLE FLOOR CORPORA- T1011, 01' MILWAUKEE, WISCONSIN, A CORPORATION OF WISCONSIN.-

' nmsrrc comrosrrron rroon.

80 Drawing.

Our invention relatesto an improvement in composition floors, which ossess thevery desirab e attributes "of dura ility and permanence, and at the same time have the 6 likewise desirable feature of elasticity, which latter contributes reatly to the comfort of persons whose wor requires them to stand upon afloor for protracted periods of time.

The composition floor. embodied in our in- 10 vention is intended primarily for use in dwelling houses. It is impervious to mois ture, and has been used advantageously in and factories, where traflic is voluminous.-

It,-is entirely free from the objections attendant upon the use offloors of the strenolith type, inthat it is not susceptible to wear and consequently does not produce dust. Moreover, in addition to being elastic to the tread, that same property preserves the composition floor from cracking and so becoming unsightly.

The im roved com ositiou floor may be readily laid in old buildings as well as new. 8 In racticing the invention, we first prepare an lay a base, this being composed of commercial wood flour or a mixture of wood flour with fine sawdust magnesite- (25%), and. gray silica (50% which s mixed with a suitable quantity 0 magnesium chloride to produce a thoroughly coherent plastic mass, the plastic mass being spread over the floor boards and pressed or rolled into a layer ap in thickness.

flooring boards.

The surface layer is composed of the best ade of wood flour (25%), ma esite white silica (18%), and fla e as- 45 gbestos (12%). This composition is likewise mixed with a suitable quantity of magnesium chloride so as to form a thoroughly saturated and coherent plastic mass of the nature of his base will be nailed" to the that first described, but which may be less, spread over the base in a layer moist, and is approximately %ths of an inch in thickness. The best results are obtained by tamping the surface layer with-wooden tamping devices of flat face and about 12 inches square,

roximately %ths of an inch Application ma January 20,, 1926. Serial 1%. cam...

.such tamping devices being provided ,on

their fiat face with parallel ribs about onehalf an inch wide and spaced the same distance apart, so as to thoroughly impact the plast1c material into a closely adhering mass and. express the surplus moisture therefrom. While we prefer the tamping as described, other pressure methods may be used.

l?ractice of the invention as above descr1bed,willproduce a floor the surface of which is neutral in tint, but whi'ch' is a.c.- ceptable in certain places and is economical. Variegated surface appearance in the floors of dwelling houses is often required,- and to produce the desired efiects, we introduce eoloring matters into the composition forming the surface layer of the floor. This is effected by dividing the mixed bulkw'hich is I to form the surface layer into a number of parts, either while its components are in a dry state or after they have been converted into a plasticstate, and mixing with the selected divisional parts suitable coloring pigments, such as iron oxide, zinc oxide, carbon, canary yellow, Prussian blue, or other elements which will produce desired colors. Each sub-divided part is thoroughly mixed so that the chosen color permeates the whole of the particular part, and produces a uniformly colored divisional mass. In break ing up the differently colored divisional parts, now in a plastic state, previous to .the mixin of all of the parts "so as to effect distributlon of the colors throughout the wholemass, we rub s'uch differently colored parts through a screen of suitable mesh, or pass them through, a grinder, from-which they emerge as separated particles.

The several differently colored parts, each new in the form of a cohering but readily frangible. mass, are mixed together so as to colors throughout the whole, the colored fra ents,.however, remainin 'distinct with their separate entities preserve The plastic aggregate with the colorsdistributed there through, is now laid as a surface coat and treated in the manner hereinbefore described for laying the surface coat of a single color.

It is essential that care be exercised in the timin of the several operations, in order that t e best results maybe attained. The surface layer mustbe p aced upon the base while the latter is damp, in order .to bind effect a good distribution of the separate I properly and secure an integral formation.

The tamping action must be preformed at the time that the surface layer has received a suitable set. After the tamping action has been completed, the surface layer will be covered with a cloudy film, which is removed by scraping just before the final set highly pleasing.

able in bath-rooms and kitchens.

of the surface layer takes place. After scraping, the several colors will stand out distinctly and in such manner as to give the surface of the floor a finished appearance which is The finished surface may be rubbed with a thin coat of raw linseed oil. Aprons or wash-boards may be formed and contribute greatly to the appearance of the improved composition floor.

Having thus described our invention, what we claim and desire to secure by Letters Patent of the United States, is:

' portions stated of wood I. An improved composition for floors formed as a mixture substantially in the proflour, magnesite,

white silica, and flake asbestos, saturated with magnesium chloride, and adapted while magnesium chloride to bind the constituent elements together. 3. An improved composition floor, comprising a base layer formed as a plastic in combination wlth a surface layer, the latter.

being composed of wood flour, magnesite,

white silica, and flake asbestos, with magnesium chloride.

4. An improved composition floor comprising a homogeneous plastic layer pressed into place, and formed of wood our, magnesite, White silica, flake asbestos and coloring matter saturated with magnesium chloride, and presenting a yariegated colored surface.

5. A magnesite floor containing wood flour and asbestos as an aggregate or filler, sub stantially in the proportions stated.

In testimony whereof, we have signed our names at Milwaukee, this 9th day of J anuary, 1926.

FRIED. WILH, OTTO LISTING. FREDERIC E. BOELKOW.

saturated