110 F. 383 | U.S. Circuit Court for the District of Washington | 1901
The defendant is the proprietor of, and engaged in operating, ore-smelting works at Fverett, in the state of Washington, and has set up for use in its establishment one ore- . roasting furnace constructed by representatives of the complainant according to the specifications of his patent; also one ore-roasting furnace constructed by the Park & Lacey Company according to the specifications of the Ropp patent; and a third ore-roasting furnace .of the style known as the “Holthoff-Wethey Furnace,” constructed by the Edward P. Allis Company, according to the specifications of the Wethey patents. The several patents referred to all cover improvements in apparatus for stirring the ore during the process of roasting, and moving it continuously upon the hearth from the feeding hopper to the discharge end of the oven. Previous to Mr. Brown’s invention, the process of rabbling the heated ore in reverberating furnaces was done either by manual labor by means of rakes thrust into the oven through side openings, or by mechanism entirely within the oven, and exposed to the injurious effects of heat, fumes, and dust. The hand operation was slow and expensive, and all machinery operating within the hot chamber of the oven was soo.n destroyed by the 'deleterious effects of heat, fumes, and dust. The primary object of Mr. Brown’s patent is to utilize power for operating rabbling apparatus, and to protect the running gear from exposure to the heat, fumes, and dust within the ovens; and the means to accomplish this object, described in his specifications, consists of a .brick arch containing two central compartments, one above the other, which constitute the ovens in which the ore is.roasted. On each side of the central compartment there is a supplemental chamber within the outer walls of the arch, and separated from the central
In the argument which has been made before me, counsel for the complainant has claimed an infringement by the defendant of only the first claim of the patent, which is in the following words:
“(1) In an ore-roasting furnace, having means for stirring and advancing-the ore, a supplemental chamber at the side of the main roasting chamber, and cut off from said main chamber by a wall or partition, and carriers in said supplemental chambers, connected with the stirrers, but removed from the direct action of the heat, fumes, and dust, substantially as herein described.”
The validity of the complainant’s patent has been adjudicated in the United States circuit court for the district of Colorado, and the decision rendered by Judge Hallett in that case has been affirmed by the United States circuit court of appeals for the Eighth circuit, and in the same case it was also adjudged that a furnace constrtícted according to the specifications of the Ropp patent infringes the Brown patent (Metallic Extraction Co. v. Brown [C. C. A.] 104 Fed. 345); and the decision referred to has been followed in another district within the Eighth circuit. After reading all the affidavits filed in this case, and giving due consideration to the arguments, I find that no new evidence of sufficient importance to distinguish this case from the cases which have been adjudged in the Eighth circuit has been furnished, and the opinions referred to appear to me to rest upon the facts and the law. While this court is not bound by the rule of comity to decide a patent case contrary to a belief in the mind of the judge as to the right of the matter, still the decisions of other courts should have weight in resolving any doubts. Mast, Foos & Co. v. Stover Mfg. Co., 177 U. S. 485-496, 20 Sup. Ct. 708, 44 L. Ed. 856. I consider that the reasons set forth in the opinions of Judge Hallett and Judge Thayer are good and sufficient, and I find no ground to justify this court in rendering a conflicting decision.
The Holthoff-Wethey furnace, according to the description of it in the specifications of the patent and the model exhibited to the court, is double-decked, like the Brown furnace, 'and closely resembles it in other particulars, to such an extent that a mere casual observation would probably create an impression that the chief difference between the two is in the superior construction of the Holthoff-Wethey furnace; but to reach a just determination of the rights of the parties a close examination of the two patents is necessary. The Holthoff-Wethey furnace has but a single oven, the ceiling and roof of which is arched; the side walls have longitudinal slots. At each end there are swinging doors. Immediately below the roasting hearth there is a cooling floor of the same length and breadth as the roasting hearth, but this cooling floor is not inclosed by side walls or swinging doors at the ends. There are no supplemental chambers on each side of the roasting hearth, and the slotted walls of the oven are not interior partitions, but are at all times accessible from the outside. Outside of each wall there is a row of perpendicular steel columns
In my examination of the authorities bearing upon the question at issue, I have found no case which more nearly resembles the one under consideration than Bussey v. Manufacturing Co., 110 U. S. 131-146, 4 Sup. Ct. 38, 28 L. Ed. 95, which was a case, involving improvements in reservoir cooking stoves. In that case the plaintiff’s patented stove was described as a cooking stove having an oven; a culinary boiler or hot-water reservoir, arranged oppositie to the rear upright side or end of the oven; and an exit flue extending from the central vertical flue of said stove at a point below the top of the oven under or across the bottom of the reservoir, and from thence up along the- rear upright side of said boiler or reservior to the draft
“(1) A diving-flue cooking stove, with the exit flue so constructed as to inclose on the sides and bottom the culinary boiler or hot-water reservoir, B. (2) A diving-flue cooking stove, with the exit flue constructed across the bottom, and up the rear upright side of the culinary or hot-water reservoir, B. (8) A diving-flue cooking stove constructed with an exit passage, F, below the top of the oven, and an exit flue, E, E, in comhination with an uncased reservoir, B, attached to the rear of the stove, and placed just above such exit passage, and so arranged that the gases of combustion, in passing through such exit flue, will impinge upon or come in direct contact with said reservoir, substantially as and for the purpose hereinbefore specified. (4) An exit passage, E, constructed in the rear of a diving-flue- cooking. stove, and below the top of the oven, in combination with an uncased reservoir, B, attached to the rear of the stove, the bottom of which reservoir is also bolow tiie top of the oven, and so arranged that the gases of combustion will come in contact with and heat such reservoir by a direct draft from the lire box to the smoke pipe. (5) In a cooking stove wherein the rear end vertical plate, or a portion of the same, has been removed for the purpose of heating a reservoir placed in the rear thereof, the shield plate, w, w, in combustion with the uncased reservoir, b, and the rear end vertical flues, K, If, and L', substantially as and for the punióse hereinbefore described and specified.”
The defendant’s stove is described in the opinion of the court as follows :
“The defendant’s stove has three flues and an exit passage below the top of the oran, and a reservoir, the bottom of which is bolow the top of the Oven; but no part of the rear end vertical plate is removed so as to allow the gases of combustion to come into direct contact with the front of the reservoir, nor is any of such plate employed as the plate, w, w, of the patent, but there is a dead air space between the rear plate of the flue and the front of the reservoir. The exit flue is not a narrow one, carried across the middle of the bottom of the reservoir, as in the patent, but the products of combustion, on leaving the flue space, pass into a chamber beneath the reservoir, the area of which is co-extensive with the entire surface of the bottom of the reservoir; and the vertical passage out of such chamber is not one outside of the rear of the reservoir, but is one in and through the body of the reservoir, and removable with it.”
The differences between the rival stoves as described were not nearly so radical as the differences in the construction of the smelting furnaces which I have to compare with each other in this case, and yet the supreme court decided that the defendant’s stove was not' an infringement of the plaintiff’s patent. In that case a narrow flue extending across the middle of the bottom of the reservoir was considered by the supreme court to be a substantial part of the plaintiff’s patent, and that infringement was avoided by a construction in which the exit flue, instead of being narrow, was expanded to the full width of the botton of the reservoir; and yet the expansion which in that case was sufficient to avoid infringement is not comparable with the expansion of the supplemental chambers described in Brown’s patent by the different construction of the Holthoff-Wethey furnace. This construction introduces into the plan of the furnace new elements, a new combination, and a new result. Electric Railroad Signal Co. v. Hall Railroad Signal Co., 114 U. S. 100, 5 Sup. Ct. 1069, 29 L. Ed. 96.
An argument is made upon the affidavit of Mr. Cornthwaite, in,