90 F. 494 | U.S. Circuit Court for the District of Southern Ohio | 1898
(after stating the facts as above). It is contended first that the plea by the defendants of license estops them from disputing the validity of the invention. However this might be were there a defense or plea of license before the court, the suggestion loses all its weight in view of the fact that the defendants did not stand upon their plea, but withdrew the same by leave of court, and filed an answer in which a license is not pleaded. It is conceded that the defendants only infringe the first claim of the patent, covering the application of color to the play in its green state, before it is fired' at all. Color is applied to pottery by the use of mineral pigments carried in a solution of clay. These are technically called “slips.” The gist of Miss Fry’s improvement was the spraying of these slips by the use of an ^tomizer upon the green clay molded into the desired form. Every other step in the process which she describes was old. The application of the color to the green clay before any firing was confessedly old in the making and decorating of the pottery. The only change claimed to have been effected was in the means by which the color was applied, to wit, by atomizing, rather than by a brush. The only question for the court to decide is whether in what had been done before there was a palpable suggestion of atomizing and spraying color upon pottery as a means of getting better effects in the decoration. It is to be borne in mind in determining such a question that the function of
“Hy invention relates to an improvement in devices for distributing pigments, the object being to apply to surfaces of any character all kinds of liquid coloring matter in a state of extreme attenuation. With this end in view, my invention consists in the combination, with a reciprocating needle arranged and adapted to feed a quantity of liquid pigment to its point at every stroke, of devices for projecting a jet of air against the needle, and atomizing the liquid pigment.”
It is unnecessary further to describe the mechanism of the invention than to say that it consisted of an ordinary atomizer with devices for holding the pigment and increasing the atomization by the assistance of a reciprocating needle which presented the pigment in fine drops at the mouth of the atomizer. It was merely an improvement on an ordinary atomizer. The patentee, in describing the operation, said:
“In the reciprocating movement of the needle its point is drawn within and immersed in the pigment in the receptacle, a small quantity of which will adhere to it. When, now, the needle is thrown forward, its point will divide the air jet issuing from the pipe, I), and the adhering color will be blown from its opposite sides thereby, and carried to any object wilhin convenient range of the jet. The quantity of color adhering to the needle is so small, and its atomization so perfect, that the individual particles of color are hardly discernible upon the object on which they are thrown. It will therefore follow that with my distributer and with one pigment colored effects may be produced which will descend from the palest tints capable of being produced by the extreme attenuation of the color through all of the intermediate tints down to the depth of color formed by the paint in mass. As the tone of the different effects will depend upon the length of time that the jet is directed io any one point, exquisitely graded shading may be produced by its careful manipulation. In polychromatic painting, in the prosecution of which it is often necessary, in order to obtain the desired tints, to apply one pigment upon the surface of another color, my distributer will be of great value, as, after it has been used to apply one color, the pigment receptacle may be cleansed, and another color introduced into it, and distributed upon the color first applied. In this way a blending of color may be produced, almost unattainable in brush painting. In painting portraits, either in color or in sepia, and in finishing solar prints, the device may also be used to excellent*498 purpose on account of its adaptation to produce those soft and delicate tints •which this class of work demands. In fact, in all situations requiring delicate coloring my device will be found a great aid in the application thereof.”
This patent was assigned to Liberty Walkup, to whom was issued another patent for a device which is merely an improvement upon Peeler’s paint distributer. Like Peeler’s, it is a device for distribution by atomization of pigments in the art of painting. He says in his patent: “This invention relates to machines employed in the distribution of pigments in the art of painting, but more especially in the fine arts.” Walkup, since 1883 and 1884 down to the present time, has been engaged in the manufacture of a device made according to the Walkup and Peeler patents, that he called an “air brush,” to be used for the distribution of color over surfaces of all kinds. In his advertisement issued in 1883 — a year before Miss Fry conceived her improvement— Walkup said that the air brush would handle liquid pigments on any surface known to the art, and that it would handle any liquid pigment in a satisfactory manner; that it could be applied to “India ink work, water colors, crayon work, photography, pastel work, architecture, lithographing, civil engineering, monumental drawing, designing of house decorations, drapery and costume designing, china decorating, colored photographs, artotypes, photogravures,” etc. There is uncontradicted evidence that in 1883 Mrs. Walkup, the wife of the inventor, used the air brush to decorate china which was subsequently fired, and that three pieces of china were thus decorated to show that the brush was adapted to the work. It is contended that the Peeler and Walkup patents con-not be successfully used with the heavy slip coloring matter that'is used to decorate pottery. This is contradicted. It is not material, however, whether the particular form of atomizer used by Peeler and Walk-up would distribute with sufficient ease the heavier coloring material used in pottery decoration, because the change from Walkup’s invention to the common form of atomizer was palpable. Walkup’s atomizer was merely an improvement on the common form, and was invented only to make the spray finer than the ordinary atomizer would make it. Walkup’s patented device necessarily contained the obvious suggestion that an ordinary atomizer would accomplish the same result in a less degree. It is to be noted that Miss Fry does not mention in the specifications of her patent any particular form of atomizer. It appears that she herself used the ordinary mouth atomizer when she began this method of coloring at the Rookwood Pottery, but that afterwards, because the use of this form of atomizer was disagreeable and harmful to the throats of the designers and artists of the Rookwood Pottery, air pumps and other mechanical devices were applied to the working of atomizers under direction of "Mr. Taylor, the manager- of the pottery. The advantages to be derived from atomization and spraying of coloring matter on surfaces to be decorated were fully set forth in Peeler and Walkup’s patents and in the advertisements of Walkup long before Miss Fry attempted the use of an atomizer. The particular form of atomizer to be used with the heavier pigments was a matter of detail and mechanical skill, for which no patent can be supported. It appears thát the mouth atomizer for distributing and spraying color on clay was' adopted by a number of persons who were entirely ignorant of Miss
It appears from the evidence that Miss Fry first used an atomizer upon clay in her work as designer in the Rookwood Pottery, and that its. success as a means of apjfiying color was there developed with the materials and appliances of the Rookwood Pottery. She does not seem to have thought that: she had invented or discovered anything patentable in the use of the atomizer for this purpose until Mr. Taylor, manager of the Rookwood Pottery, nearly two years after she began using it, and after she had left the employ of that pottery, wrote to her, and suggested that she take out a patent for the process. In the course of