191 F. 837 | U.S. Circuit Court for the District of Western New York | 1911
This is a bill in equity based on two-letters patent granted on April 23, 1901, to Thomas A. Edison, for method of breaking rock and for apparatus for breaking rock, numbered respectively, 672,616 and 672,617. The method patent was issued on application dated July 6, 1897, and the apparatus patent on divisional application dated August 9, 1900. The defendants are charged in the bill with joint infringement of the patents in this district. The answers allege invalidity of the patents because of prior public-use and sale more than two years before they were granted and'want of novelty and noninfringement. At the hearing the jurisdiction óf the court was challenged on the ground that a completed act of infringement prior to the commencement of the action was not proven. This objection will now be considered. - •
The claims of the method patent read as follows:
“1. The method of breaking rock consisting in causing two independently-driven and disconnected massive bodies to travel toward each other at a high speed, partially arresting the motion of such bodies by successively and periodically introducing charges of rock between them, thereby breaking the rock by kinetic energy, and restoring the speed of such bodies during the intervals, substantially as set forth.
“2. The method of breaking rock consisting in driving a pair of independently-driven and disconnected massive rolls at a high speed by means of a small power capable of running the rolls up to speed when no work is being done, partially arresting the motion of the rolls by successively and periodically delivering charges of rock to them, thereby breaking the rock by kinetic energy and restoring the speed of the rolls during the intervals, substantially as set forth.”
The claims of the apparatus patent which are involved, except the fifth and sixth, read:
“1. In apparatus for breaking rock by kinetic energy, the combination of a pair of independently-driven and disconnected massive rolls having rough-*841 ('Tied or irregular surfaces, a power connection delivering power to both the rolls insufficient to break the rock by the direct application of the power, and means for periodically delivering charges "of rock to such rolls at sufficiently infrequent intervals to permit the rolls to recover sufficient speed to effect the successively breaking operations, substantially as set forth.
“2. In apparatus for breaking rock by kinetic energy, the combination of a pair of independently-driven and disconnected massive rolls having roughened or irregular surfaces, a power connection delivering power to both the rolls insufficient to start the rolls from a state of rest, and means for periodically delivering charges of rock to such rolls at sufficiently infrequent intervals to permit the rolls to recover sufficient speed to effect the successive breaking operations, substantially -as set forth.
"3. In apparatus for breaking rock by kinetic energy, the combination of a pair of independently-driven and disconnected massive rolls, knobs of substantially uniform height on the rolls for catching the rock and subjecting it to a rolling action, larger and higher knobs disposed in a longitudinal row on one of the rolls for sledging large pieces of rock and reducing them to a size small enough to be subjected to the rolling action, a power connection delivering power to both the rolls insufficient to break the rock by the direct application of the power, and means for periodically delivering charges of rock to such rolls at sufficiently infrequent intervals to permit the rolls to recover sufficient speed to effect the successive breaking operations, substantially as set forth.
“4. In apparatus for breaking rock by kinetic energy, the combination of the two independent massive rolls having roughened or irregular surfaces, and the slipping power connections for both rolls, substantially as set forth.”
“7. In apparatus for breaking rock by kinetic energy, the combination, with independent massive rolls having roughened or irregular surfaces, of slipping power connections, and means for periodically delivering rock to the rolls, substantially as set forth.”
Claim 1 of the method patent is for a combination and describes the operation. Claim 2 is not substantially different, but has included the feature of periodical delivery of rock to the rolls. Claim 2 of the apparatus patent is similar to claim 1, except that in its combination of elements is. included “a power connection delivering power to both the rolls insufficient to start the rolls from a state of rest,” while in claim 1 “the power connection delivering power to the rolls is insufficient to break the rock by the direct application of the power.” Claim 3 includes the higher knobs to break the rock to be subjected to the rolling action. Claims 4 and 7 are broadly for the combination of two independent massive rolls with irregular surfaces, and the slipping power connections for both rolls. Claims 5 and 6 include the element of friction clutches.
A number of patents for crushers having rollers are claimed by defendants to anticipate and limit the claims in controversy; but such patents are inapplicable. To bring together and adapt in dimensions iron rollers of such large proportions inclosed in a frame and providing means for periodically storing kinetic energy and periodically expending it as described in the specifications was invention of the highest merit. It was not a question simply of changing the proportions, size, or shape of the rolls. New and novel additions in crushing apparatus were made. The prior crushing or pressing rolls contained no helpful suggestions to the patentee as to the manner of using kinetic energy to instantaneously fracture heavy rock. Although the prior art shows crushing rolls with irregular surfaces as evidenced by the patents to Umholtz, Nos. 48,224 and 27,581, for
■ .In rolls of the size and weight of complainant’s it was essential that they be driven independently by belting so as to secure both cooperative and varying movements. Indeed, the essence of the invention- resided in such changes over the prior art. For, as indicated by the evidence, to have geared the rolls would, -because of the great weight and strain, have broken the gear teeth. In the Wall rolls, upon which the defendants lay emphasis, the rolls, it is true, were large, but they formed to operate as spiral gears, and were driven by gears; the method of crushing being in the nature of direct application of the power, with the result that only small rock or stone could be crushed or pulverized. Such rolls did not operate by kinetic energy. They were absolutely unable to crush large rock or boulder, and after repeated trials were abandoned. In the prior art there is not disclosed any method or apparatus for breaking rock by the medium pf .crushing rolls which are provided with knobs or projections and ar,e driven by belting. They were provided, in most instances, with teeth or projections on the rolls which were geared together, and their function was to compress, pinch, or pick the material to separate the particles. The driving agent, apparently, performed the work of crushing the material, while in the patents under consideration there is a distinct departure; the material being wholly crushed or broken by the energy of the knobs on the rolls. Although some of the separate elements of the claims in controversy were old and are found in-the prior apparatuses, yet such old elements had never before been assembled or combined to use power stored in the rolls to break or crush rock, nor prior to the inventions in suit had such rock been
The defendants further claim that a commercial machine such as the specifications describe was sold, prior to 1895, to the New Jersey Zinc Company. The record shows that Mr. Edison had given a license to such company to use a crusher — not the completed invention in suit — and any patentable improvements that might subsequently be made. Indeed, it' is satisfactorily shown that the giant rolls embodying the inventions in suit were not used commercially until after the original application for patent was filed, and that prior thereto the inventions were under the exclusive control of Mr. Edison. My conclusion on this phase of the controversy is that the defendants have not proven use or -sale within the statutory period beyond reasonable doubt. In its most favorable aspect the testimony merely shows an experimental use of an incompleted machine, and such use, it has been frequently held,-is not a public use. Elizabeth v. Pavement Co., 97 U. S. 126, 24 L. Ed. 1000; American & English Ency. of Law (2d Ed.) vol. 22, p. 338.
Coming now to the important question of infringement: The defendants, to differentiate its rollers and method of operation from complainants, contend that the rolls installed at Pekin, N. Y., are rotated by a common driving belt which engages the pulleys which are fixed rigidly by the roll shafts; that- no friction clutches are interposed between the pulleys and the roll shafts as in complainant’s structure; that the power is directly applied to the rolls from the driving belt, and the rolls are not driven independently, nor are they disconnected, but, on the contrary, they are dependent and connected upon and to a belt which engages the shaft.
The expert witnesses are not in accord on various propositions relating to the similarity of the defendants’ crusher to that of the complainant or on the means adopted by the defendants to perform their work. By the testimony of complainant’s witnesses Newhouse and Van Zendt, who inspected defendants’ rolls, it appears that they are approximately the same weight and size as those of complainant. They are similarly mounted in a frame, and the two pulleys which are positioned side by side drive the belts by means of a driving belt which runs from a pulley upon a countershaft over a belt-tightening pulley, and the roll pulley, and to quote from the testimony:
“Furthest away from the line shaft, coming in contact with this pulley on the lower side passing partly around this pulley, then partly around the other pulley (U3) and hack to the countershaft (t) in such a way that the same belt drives both rolls in the proper direction, that is, toward each other from the top; each pulley is rigidly keyed to its roll shaft.”
Such method of using the driving belt to rotate the rolls is practically the same as that of complainant. In place of the friction clutch between the pulleys and the roll shafts specified-in claims 5 and 6 of
I am also of the opinion that the defendants’ rolls are “independently driven and disconnected,” and therefore infringe the method patent and the broad claims 1, 2, and 3 of the apparatus patent. The phrase “independently driven and disconnected” relates to the construction and method of driving the rolls, and was obviously used in the Patent Office to differentiate rolls driven by belting and such as are geared • together. In providing a drive by belting, the patentee secured a disconnection of the rolls and independent rotation, which were essential features of his patents, and by which the kinetic energy was rendered capable of being used. Giving said claims such a construction without limiting them to a friction clutch connection, the defendants’ rolls must be deemed to operate within their scope, as each is driven by its own pulley, which,bears independently of the other on the driving belt, thus receiving its momentum directly from its pulley. The patentee has the undoubted right to every use to which his origination can be applied and to every way in which it can be used to carry out its function, and, having correctly described his invention, it makes no difference that he did not claim such uses. National Co. v. Interchangeable Co., 106 Fed. 693-709, 45 C. C. A. 544.
To summarize, the defendants’ rolls in operation are substantially the same as those of complainant, haying a like capacity for crushing rock. They use the kinetic energy to break the material periodically dumped upon the rolls, and in their operation perform the functions of the patents in suit and achieve the same result. The method patent describes the mode of treatment of the rock by which it may be shattered and the series of steps to be taken in the transforming process.
The combination of elements by which the splendid results of breaking rock by blows due to the use of kinetic energy were attained undoubtedly involves the exercise of invention as distinguished from mechanical skill. The prior art neither suggested the patentee’s meth
Accordingly, the complainant may have a decree for injunction and accounting, with costs.