Respondents demur to the complainants’ bill in equity for the infringement of letters patent No. 372,289, dated October 25, 1887, for an improvement in loom shuttles. Several grounds of demurrer arc staled, the important ones being that the amended bill is insufficient and devoid of equity in the following particulars: (8) That it appears upon the face of the patent sued upon that it is void for want of novelty; (4) that it appears upon the face of the patent sued upon that it is void for want of invention. It is not often that these questions are presented by demurrer. Ordinarily the nature of the subject demands the testimony of witnesses skilled in the art to which the patent relates to enable the court to act intelligently upon the question whether or not the improvement required inventive skill for Its production. It is, however, well settled that, in a bill in equity for the infringement of a patent, if the patent is void upon its face by reason of want of novelty or patentable invention, the court may, upon demurrer, stop at the instru*310ment itself, and decide in favor of the defendant; and the court may, upon such investigation, take judicial notice of a thing within the common knowledge and use of the people throughout the country. Brown v. Piper, 91 U. S. 37; Terhune v. Phillips, 99 U. S. 592; Slawson v. Railroad Co., 107 U. S. 649, 2 Sup. Ct. Rep. 668; King v. Gallun, 109 U. S. 99, 3 Sup. Ct. Rep. 85. In the light of these authorities, it is clearly the duty of the court to examine the patent, and ascertain whether or not, upon its face, it is void for want of novelty or invention. In this respect we are aided by the drawings accompanying the patent.
Fig. 1 is a side view of one end of the shuttle, showing the tip in place; Fig. 2 is apian view thereof; and Fig. 3 is a sectional view of the cap removed, showing the holt by which it is secured. The inventor in his specifications states that—
“In the manufacture of loom shuttles, it is customary to protect the end of the shuttle body by means of a flat plate, which is variously secured to the shuttle body, and has a spur or point projecting from one side thereof, which serves to insure the passage of the shuttle properly between the threads of the warp, while a portion of the flat plate serves to receive the impulse of the picker, which throws the shuttle from end to end of its travel. These plates are sometimes secured to the end of the shuttle by means of two pins, which projectfrom the plate and are driven into the end of the shuttle; or they may be secured by means of screws, one of which has its head counter-sunk to tit flush with the surface of the plate, while the other is provided with a pointed extension, as before described. In either case the rapid movement of the shuttle, and the violent blows to which it is subjected, cause the wood to become split in a short time, or the plates to be loosened, and, furthermore, the shuttle bodies are very often split and broken in the act of putting the plates on. In my invention, A is a metallic cap, made of sufficient length to have a chamber, B, formed within its larger end of the same shape as the end of the shuttle to which it is to be fitted. 0 is the pointed tip which insures the proper passage of the shuttle between the threads, as before described. A counter-sunk hole, D, is made through the central portion of the metallic tip, and a bolt, E, passes through this hole, and a corresponding one in the end of *311the shuttle, so that it enters the central open space within the body of the shuttle. A nut, F, is screwed upon the threaded end of this bolt, thus holding the tip firmly to the shuttle, and preventing its over being loosened or displaced, the single boit being sufficient for this purpose. By reason of the above construction, I am enabled to attach the metallic tip to the shuttle body without injury to the latter, and at the same time provide a simple and secure means for holding the same thereon.”
The claims of the patent are:
“(1) The combination with the shuttle body of a metallic tip having a conically shaped chamber adapted to receive the end of the shuttle body, a bolt passing through said chamber and the end of the shuttle body, having a head counter-sunk in the outer end or wall of the tip, and a securing nut on the inner end of said bolt, substantially as herein described. (2) The combination, with a shuttle body, of a metallic cap having a pointed tip, d, and a chamber by which such cap is fitted to the end of the shuttle body, and a bolt passing through said cap and the end of the shuttle body, having at one end a head counter-sunk in said cap, and at the opposite end a securing nut, substantially as described. ”
From this reference to the drawings, specifications, and claims in the patent it appears that on the end of the shuttle body a flat plate was formerly attached by means of a screw or bolt, driven or screwed into the end of the shuttle body; that the constant movement of the shuttle was liable to causo the wood to split, and the plates to become loose. The improvement in this respect is made by extending the screw through the end of the shuttle, and placing a nut on the end of the bolt of the screw. It must be admitted that this is an improvement upon the former methods in common use, in this: that it holds the plate or tip more securely to the end of the shuttle, and prevents the wood from splitting as frequently as it otherwise would. But does this improvement involve any mechanical skill? Can the improvement, as made, be called invention? The use of a bolt with a nut screwed on the end of it for the purpose of holding or fastening, things together is not only well known to mechanics, but is a matter within the general knowledge of the public. When, from any cause, it was discovered that the tip on the end of the shuttles would frequently become loose, or the wood split, what would be more natural than to suggest the driving of the bolt through the end of the shuttle, and placing a nut on the end of the bolt, and screw it up tightly? The shuttle, as thus constructed, performs no new function. It operates precisely as it did before the improvement was made. The improvement is superior to the old methods in the mechanical structure of the shuttles, but is not, in my opinion, of such a character as required inventive skill. In Hollister v. Manufacturing Co., 113 U. S. 72, 5 Sup. Ct. Rep. 717, the court, having under consideration a patent for an improvement of a revenue stamp for barrels, etc., used language applicable to the improvement, as made in this case, by adding the nut to the bolt of the screw. The invention—
“Seems to us not to spring from that intuitive faculty of the mind put forth in the search for new results or new methods, creating what had not before existed, or bringing to light what lay hidden from vision; but, on the other hand, to be the suggestion of that common experience, which arose spontanous*312ly and by a necessity of human reasoning in the minds of those who had became acquainted with the circumstances with which they had to deal. * * * As soon as the mischief became apparent, and the remedy was seriously and systematically studied by those competent to deal with the subject, the present regulation was promptly suggested and adopted, just as a skilled mechanic, witnessing the performance of a machine, inadequate, by reason of some defect, to accomplish'the object for which it had been designed, by the application of his common knowledge and experience, perceives the reason of the failure, and supplies what is obviously wanted. It is but the display of the expected skill of the calling, and involves only the exercise of the ordinary faculties of reasoning upon the materials supplied by a special knowledge, and the faculty of manipulation which results from its habitual and intelligent practice; and is in no sense the creative work of that inventive faculty which it is thq purpose of the constitution and the patent laws to encourage and reward. ”
To entitle a party to a patent, the invention must be new and useful, and the improvements must be of such a character as requires invention to make them. In Dunbar v. Myers, 94 U. S. 187, Mr. Justice Clifford, in delivering the opinion of the court, said;
“The patent act confers no right to obtain a patent except to a person who has invented or discovered some new and useful art, machine, manufacture, or composition of matter, or some new and useful improvement in one or the other of those described matters. ”
The patent in that case was for an improved machine for sawing thin boards, etc. Among other things, a circular saw was used, made of thin steel plate, such as is used for sawing veneers, on one side of which was a circular plate áecured by rivets or screws, the plate being less in diameter than the saw, which had the effect to stiffen the plate of the saw, and to enable the operator to use a thinner saw than he would otherwise be able to do. The learned justice in the course of the opinion said:
“Circular plates attached to circular saws, secured by rivets or screws, for the purpose of strengthening the central portion of the saw-plate, and sometimes called ‘stiffening plates,’are old devices which have been known to the operators of the circular saw ever since the circular saw came into general use for sawing shingles, laths, and clapboards. * * * Ordinary mechanics know how to use bolts, rivets, and screws, and it is obvious that any one knowing how to use such devices would know how to arrange a deflecting plate at one side of a circular saw, which had such a device properly arranged on the other side. ”
In Atlantic Works v. Brady, 107 U. S. 200, 2 Sup. Ct. Rep. 225, Mr. Justice Bradley, in delivering the opinion of the court, said:
“The design of the patent laws is to reward those who make some substantial discovery or invention, which adds to our knowledge and makes a step in advance in the useful arts. Such inventor is worthy of all favor. It was never the object of those laws to grant a monopoly for every trifling device, every shadow of a shade of an idea, which would naturally and spontaneously occur to any skilled mechanic or operator in the ordinary progress of manufactures. Such an indiscriminate creation of exclusive privileges tends rather to obstruct than to stimulate invention.”
*313In that case it was held that the placing of a screw for dredging at the stern of a screw propeller, when the dredging had been previously accomplished by turning the propeller stern foremost, and dredging with the propelling screw, was not a patentable invention. The views above expressed are sustained by numerous authorities: Pencil Co. v. Howard, 20 Wall. 498; Reckendorfer v. Faber, 92 U. S. 347; Doubel-Pointed Tack Co. v. Two Rivers Manuf’g Co., 109 U. S. 118, 3 Sup. Ct. Rep. 105; Pennsylvania R. Co. v. Locomotive Engine Safety Truck Co., 110 U. S. 490, 4 Sup. Ct. Rep. 220; Yale Lock Co. v. Greenleaf, 117 U. S. 555, 6 Sup. Ct. Rep. 846; Pomace Holder Co. v. Ferguson, 119 U. S. 335, 7 Sup. Ct. Rep. 382; Phillips v. City of Detroit, 111 U. S. 604,4 Sup. Ct. Rep. 580. The demurrer is sustained, and bill dismissed.