American Casting Mach. Co. v. Pittsburgh Coal Washer Co.

237 F. 590, 150 C.C.A. 472, 1916 U.S. App. LEXIS 1984
CourtCourt of Appeals for the Third Circuit
DecidedNovember 13, 1916
DocketNo. 2119
StatusPublished
Cited by4 cases

This text of 237 F. 590 (American Casting Mach. Co. v. Pittsburgh Coal Washer Co.) is published on Counsel Stack Legal Research, covering Court of Appeals for the Third Circuit primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
American Casting Mach. Co. v. Pittsburgh Coal Washer Co., 237 F. 590, 150 C.C.A. 472, 1916 U.S. App. LEXIS 1984 (3d Cir. 1916).

Opinion

BUFFINGTON, Circuit Judge.

In the court below the American •Casting Machine Company, the owner of patent No. 788,334, granted April 25, 1903, to James Scott for “apparatus for casting metal,” and of patent No. 806,700, granted December 5, 1905, to J. B. McKennan and A. H. Helander for “links for conveyors,” filed a bill against the Pittsburgh Coal Washer Company, charging infringement of certain claims of said patents. On'final hearing that court dismissed the bill, holding both patents lacked invention, and that the Scott patent was also invalid because, more than seven months before Scott applied for it, he had caused the same device to be patented in England. On entry of a decree dismissing the bill, the complainant appealed to this court.

[1] In the view we take of the Scott patent, it will not be necessary for us to decide whether the court below was right in holding it did' not involve invention, for, apart from that question, we are of opinion that court rightly held the English patent avoided the Scott patent.

[2] By section 3 of the act of Congress of 1897 (29 Statutes at Rarge, p. 692), and by the act of March 3, 1903 (32 Statutes at Rarge, p. 1227), section 4887 of the Revised Statutes was amended to read as follows:

[597]*597“No person otherwise entitled thereto shall be debarred from receiving a patent for his invention or discovery, nor shall any patent be declared invalid, by reason of its having been first patented or caused to be patented by the inventor or his legal representatives or assigns in a foreign country, unless the application for said foreign patent was filed more than seven months prior to the 'filing of the application in this country, in which case no patent shall be granted in this country.”

Now, the patent here in suit,' No. 788,334, for an apparatus for casting metal, was applied for by James Scott August 31, 1899, and granted April 25, 1905. More than seven months prior to Scott’s application, to wit, on February 16, 1898, application was made for English patent No. 3,880, which patent was granted to James Willard Miller, who in his specification described himself as a manufacturer’s agent, and therein stated that the said improvement was “partly a communication from Edward A. Uehling, a metallurgical chemist and engineer, of Newark, Essex, New Jersey, U. S. A., and James Scott, of Pittsburgh, Allegheny county, Pennsylvania, United States of America.” Without entering into details, it suffices to say that the subject-matter of the Scott American patent is embodied in the Miller English patent, and, as the American patent was not applied for until more than seven months thereafter, the statute above recited forbade the grant of such patent, if Scott’s invention or discovery had been “patented or caused to be patented by the inventor or his legal representatives or assigns” in England. After hearing the proofs the. court below held that Scott had caused his invention to be patented in England more than seven months before he had applied for his American patent, and that under the statute quoted above the latter patent was void. In view of all the proofs, the relations of the parties concerned, and the inferences fairly deducible therefrom, we are of opinion the court below committed no error in decreeing Scott’s patent void on that ground.

From the proofs it appears that this case concerns the change in pig metal casting from the old sand bed method in universal use to the modern casting in conveyor metal molds. The old process and the underlying features of the new method are contrasted in patent No. 548,146, applied for November 28, 1892, and granted October 15, 1895, to Edward A. Uehling, of Birmingham, Alaw for an apparatus for and method of casting and conveying metals. In such-patent it is said:

“In tbe casting and handling of pig iron as now generally practiced the iron is run into open sand molds called ‘pigs.’ In this operation the iron runs direct from the furnace'into a long sand runner, from which side runners are led off, called ‘sows,’ which feed the “pigs.’ The sows are cut off from the main runner as the ‘pig beds’ fill up, but the pigs must be detached from the sows and the latter broken into proper, lengths for handling after the iron has set. This breaking off is done either while the iron is still red hot in the beds, making it an exceedingly hard task, or the iron is left to cool, in which case heavy bars and sledge hammers are required to break the pigs off the sows and then break the latter into proper lengths. After this breaking, water is sprayed over the iron, and .when it has sufficiently cooled is gathered, loaded on trams, and taken to the yard, where it is piled. The scrap is then gathered from the beds, and the sand is wet down and molded up for another cast. These operations must be'repeated from four to six times a day to take care of the product of a modern blast furnace, and they depend [598]*598almost entirely upon the brute force and physical endurance of the operators. The product is rough and irregular, and the operation is very wasteful, producing large quantities of scrap, which must be remelted, and carries much sand with the iron, which reduces the value of the iron. Moreover, this method of running the iron from the furnace into the sand is under very poor control. It sometimes runs so slowly that the iron chills in the long runner before it reaches the lower pig beds. At other times the running of the iron is with such a rush that the cores, which form the partitions between the pig molds, are washed away and the beds sheeted. In either case the iron must be taken up from the sand beds and remelted to make it marketable, besides the expense of having to break it up and remove it from the beds. The method above stated has also the disadvantage that the iron, as it runs from ;the furnace, is frequently of varying quality, and it is of common occurrence that several grades of iron are run from the furnace at the same cast. In this it not infrequently happens that a portion of the pig is deficient in those elements which are necessary to constitute good cast iron—as, for example, silicon and graphite carbon—while another portion has an excess of these elements. In either the iron has less value that it would have if the elements were properly mixed. In addition to all this, much difficulty is often experienced in keeping the slag from running with and contaminating the iron, as well as preventing some of the iron from being wasted with the slag. To avoid the disadvantages and difficulties above stated, and to reduce the cost of the production and improve the quality of the product, is the object of my invention, and which embraces a novel construction of plant, in which the metal is run from the furnace into a .large reservoir, so mounted that it can be brought in communication with a. series of movable molds, and its contents can be poured into the latter in a continuous and perfectly controlled stream, forming pigs of uniform size, which solidify on their way to the dumping end, where they are automatically delivered into a car or other suitable conveyance.”

From the testimony of Scott, who was superintendent of the Isabella furnaces of the Carnegie Steel Company, it appears that he began in 1895 experimenting on the same general lines, but without knowledge of Uehling’s work. Before, however, he had evolved any method or practical device, Scott’s attention was called to Uehling’s patent, then just issued. His account of the matter is, viz.:

“I remember, before we were about to start the machine, I said to H.

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Bluebook (online)
237 F. 590, 150 C.C.A. 472, 1916 U.S. App. LEXIS 1984, Counsel Stack Legal Research, https://law.counselstack.com/opinion/american-casting-mach-co-v-pittsburgh-coal-washer-co-ca3-1916.