US1738992A - Combined filler and stain - Google Patents

Description

Patented Dec. 10, 1929 UNITED STATES EARL D. FLOOD, F CLEVELAND, OHIO COMBINED FILLER AND STAIN No Drawing.

The object of this invention is to produce a filler of such composition that it may be combined with a coloring material comprising the stain, for filling and treating wood at the same time, that is, the combined material will be applied to the wood surface to be filled, accomplish effectively the filling of the grain, and produce the desired color and tone effects; Another important object is that this filler may dry so rapidly that in a matter of a i very short'time, say in an hour or two, it may be sanded and lacquer or varnish applied with the assurance that the lacquer or varnish will not later be discolored and that the filler vill remain permanently fixed. With this in mind. it may be found useful, Without the stain material, and comprise an excellent quick drying filler.

The present methods include the sanding of the surface to be treated, the application of water as by sponging to raise the grain, again sanding the surface lightly, thereafter applying a stain, allowing the stain to dry for many hours before the filler can be applled. After the application of the filler, the surface is again allowedto dry very thoroughly, requiring many more hours before the lacquer or varnish may be applied.

By the use of my combined filler and stain, 39 I eliminate one of these drying periods, as well as the labor of applying the additional stain, saving both a large amount of time and some labor. By the use of the particular composition hereinafter described, .I greatly as shorten the time of the drying of the filler and stain, so combined, whereby in actual practice ll am able to fill andstain a surface previously prepared by sanding and sponging, and within an hour or two the surface 40 is set. I prefer to then apply the varnish or lacquer by the use of a spraying apparatus known as a spray gun.

It is particularly essential that the filler used shall leave an extremely smooth surface when lacquer is used, because the lacquer coat applied by spraying is so thin that it follows any irregularities in the surface, whereas heavier varnish applied with a brush may fill these depressions to some extent and result in a comparatively smooth surface after Application filed October 31, 1925. Serial No. 66,095.

rubbing, even though the filling work has not been perfectly even and smooth.

By way of example of a preferred form of my combined filler and stain, I may first take approximately two ounces of dry dextrine or glueand make a water solution, about the same or a smaller amount of starch in solution separately and combine these, then take three pounds of water (about a pintand a half) [W0 pounds of silica or silex, in powder form, and about one-half .teaspoonful, or a gram, of salicylic acid for preservative. l/Vith this 1 may mix a color material or stain varied to suit the tone desired, for example for mahogany with the above mixture I may use 2 to 5 ounces of dry aniline dissolved in water and two to live ounces of dry drop black Vandyke brown, or other material to suit.

in applying the above mixture to the prepared surr'ace, it must be done quite rapidly 7e and rubbed in, as the usual fillers are applied. For example on a large table top one person applying the filler and another Working close behind to rub and Wipe the filler'assures having it wiped smooth before its sets. A slight variation of the quantity of water is all that is necessary to thicken or thin the mixture as desired. As soon as the surface is rubbed, it will be found to dry in a few minutes sufii cient to be sanded. As soon as it appears to 30 be completely dry, which should be a short time thereafter, the lacquer or varnish may be applied in the usual manner.

'lhe obvious advantages of eliminating the long drying time heretofore considered liecess5 sary between the staining and filling and varnishing, render the use of such a combined filler and stain very economical in furniture factories or like industries where a large amount of storage space and drying rooms are required. lfiy. the method of using my filler and stain, it, will be seen that provision need only be made for a very small amount of drying space for boththe staining and filling. The amount of labor saved is also a considerable item.

While the above'formula has been found to be very satisfactory, my invention is not limited to the particular materials given, as

"various substitutes for silica, for example,

as well as the other ingredients within the knowledge of those engaged in making fillers and stains are intended to -be included in the claim.

Having thus described my invention, I claim:

A combined filling and staining material consisting of powdered silica, suspended in a starch solution, together with glue as a binder, anon-alkaline preservative, and a coloring material.

In testimony whereof, I hereunto aflix my signature.

. EARL D. FLOOD.