63 F. 702 | U.S. Circuit Court for the District of Washington | 1894
(orally). This is an action brought by the plaintiff against the city to recover damages for infringement of letters patent No. 297,699, granted to the plaintiff for an improvément in pins for holding insulators supporting electric wires. What is claimed by the application, and to be considered as protected by the patent, is a pin of iron or steel, of suitable size and any length, with an enlarged head of lead, or any soft metal, upon it, with a thread to fit the inside of glass insulators, which are made with a spiral groove for screwing onto a screw head. The heads are cast upon the ends of pins by running molten lead into a mold while the end of a pin is held therein. A firm union of the lead to the iron is secured by notching the pin end, or making it rough with a chisel. These pins are designed to be •used in connection with glass insulators in common use. No particular kind of insulator is required, and the insulator is not part of the combination which the plaintiff claims as his invention. The kind of pins most commonly used are wooden pins with a thread on the end to hold the insulator; but wooden pins are objectionable because they cannot be made of sufficient strength without being of a size that unfits them for use in many places. For instance, they cannot be set into arms upon telegraph and telephone poles without requiring either very large arms, or making the arms in common use too weak. In all places where the wire makes an angle, a wooden pin must be of considerable thickness to be strong enough to support the wire and bear the strain that is necessary. Iron pins were in use for such purposes a long time before the plaintiff in this case claims to have conceived the idea of this invention, and, in order to use them in connection with glass insulators, of course some material had to 'be used to fill the cavity of the insulator, and accordingly a filling of wood, of canvas coated with white lead, and all the different kinds of cement were used. Cement in a plastic state was run into the cavity in which the iron pins were set, and exactly the same method of making the iron pins available was in use before this invention, except
The plaintiff has cited several cases to show that, in matters of similar character, the fact that an improvement is found to be of such general utility as to cause the improved article to go immediately into general use, and supplant all other methods, is proof of an invention. But the proof here is that wooden pins are still in use, and i his new contrivance has only been used to a limited extent, and that there is no such special utility in it that it has supplanted the old methods. The policy of the law is to reward inventors by giving them, for a limited iinie, tixe fruit of their productions. But mere improvements produced by the use, in a usual manner of previously known instruments, from materials in general use, without application of any new principle, do not entitle their authors to monopolies. Every-day work "in shops and on farms makes necessity for many contrivances; and when a farmer Axes up a broken harness by his own peculiar method, or makes an improvement in the operation of agricultural implements, or when a mechanic adapts Ms tools to the creation of an article required to suit the ideas of a, customer, the results are not patentable inventions. The patent laws cannot be so construed as to restrict ingenuity in the common employment of the people without becoming intolerable burdensome, rather than beneficial. Hollister v. Manufacturing Co., 113 U. S. 59, 5 Sup. Ct. 717.
In my consideration of the testimony in (his case I have read the depositions, and I have concluded to overrule one and all of the objections that are noted. The other defenses in this case are, in my opinion, unavailable under the pleadings. I think the different defenses that have been discussed in this case should have been set forth fully and with greater particularity in the answer, to enable the defendant to take any advantage of them.