The art discussed herein relates to knitted fabrics and the machines by which they are produced. The patent in suit covers a machine for producing a heavy knit material, capable of use in making winter undergarments. Its construction is fully explained in the opinion of the court below. -139 Fed. 137.
The claims in suit are as follows:
“(1) A knitting', machine having two sets of needles and cams therefor for producing ribbed fabrics, jacks or loopers, cams and a bed therefor, operated by the driving mechanism of said machine to interlace a supplemental thread with the meshes produced by the said needles* substantially as and for .the purposes set forth. * * * ”
“(3) A circular knitting machine having two sets of needles, needle-cylinder, cam-cylinder, needle-dial, and cam-dial, together with jacks or loopers operatively mounted in grooves of a jack-bed, fastened to the needle-dial, and cams adapted to operate the said jacks or loojiers in conjunction with the said needles, to interlace'a supplemental thread with the meshes produced by the said needles, substantially as and for tlie purposes set forth. * * * ”
“(6) A circular knitting machine having two sets of needles , and means for operating the same, a system of loopers or jacks operated hs' cams to interlace a supplemental thread with the meshes produced by the said needles, and means for supplying the said loopers with yam, substantially as and for the purposes set forth.
“(7) In a circular rib knitting- machine the combination of two sets of needles, a cylinder, and a dial therefor, a system of loopers or jacks, guided' in slots of the said dial, a bed for said loopers or jacks, and means for operating the said needles and loopers, substantially as and for tbe purposes set forth.”
Beilis was the first to produce “a fleecing ribber” and the new fabric known as “fleece rib.” Machines for producing a fleecy inner face on plain knit fabrics had been known for some 13 years prior to the invention of the patent in suit. Ribbed goods had been fleeced by carding the body threads. But plain knit fabrics were inelastic, and carding the body threads weakened the garment. The demand for a fabric which would obviate these objections is indicated by the commercial success of complainants’ and defendants’ manufactures. That the construction of a machine capable of producing such a fabric was not obvious appears from the 31 prior patents introduced by defendants,' no one of which showed a solution of the problem, and fronr the inability of defendants’ experts to construct from the prior art any practical fleecing ribber, or to satisfactorily indicate, how the prior structures could be so adapted as to produce a fleece rib, without radical and substantial modifications, involving the exercise of invention, and by .the further very significant facts that the Scott patents, Nos. 577,788 and 577,789, for rib knitting machines, applied for prior to the issue of the Beilis patent, proceeded upon a theory, and were constructed upon a plan, radically different from the suggestions furnished by the prior art as testified to by defendants’ experts, and that, after the Beilis disclosures, Scott abandoned his former construction, followed Beilis, and finally secured a half interest in the Beilis patent.
The only prior limiting machine material to this discussion is that of the Cooper & Ford, British Patent No. 172, of 1887. But this was a plain nonribbing knitter, provided with' loopers, and if the second set of needles be added thereto in order to make a ribbed fabric, it *917would not operate as a looper at all. The solution of the problem is not accomplished by the introduction of another set of knitting needles into said Cooper & Ford or the prior Sturgess & Hearth machines, because in each of them, as is admitted by defendants’ expert:
“Tlie stretches of supplemental thread which would be exposed on the unribbed fabric would be imbedded and inwrappod within the fabric when made ribbed by the addition of a second set of needles.”
Nor is the solution of the problem furthered by the ribbed fabric machines of the prior art. The closest of them (that of Lecaisne, of 1892), which laid an extra thread in the fabric, need not be discussed, because .it was not enumerated by defendants’ expert in his list of 10 specially pertinent patents, because it is not a looper, and furnishes no suggestion of means for making loops, and because Cooper & Ford in the second patent, chiefly relied on by defendants, abandoned Lecaisne in order to produce a looper. This, therefore, is a case where, so far as concerns machines for making the new fabric, there is no prior art, and, so far as concerns machines for making the old fabrics, they apparently, at most, failed to furnish any suggestion of adaptation to the new purpose, hut, as complainants claim, and there is some evidence to support the claim, their construction would tend to lead the inventor away from, rather than toward, the right path for the attainment of the object sought.
The arguments directed to a limitation of the scope of the patent m suit consist, first, in the following criticisms of its language, in connection with tliat of Beilis’ fabric patent, No. 561,559. His object was to construct “a machine which is capable of producing a ribbed knit fabric with backing,” described in his patent therefor, consisting of “a two-ply rib knit webbing,” or provided with “a backing on the ribbed knit fabric, which may be of a different material from that of which the body of the fabric is composed,” to be introduced “while the latter is being produced.” The result, the production of a “ribbed knit fabric with backing,” was accomplished by means of “jacks or loopers operated to act in conjunction with the needles to interlace a supplemental thread with the meshes composing the body of the ribbed fabric.” “But to produce a backing on such fabric while the .latter is being produced devices must be provided which bring the backing or supplemental thread from the inside of the machine over the needles at certain and predetermined intervals, so that it may be interlaced with the meshes of the fabric as will be hereinafter more fully described,” and the jacks must rise to push the thread “over a needle, to be interlaced with a mesh formed by such needle.” There is no statement in the patent that its object was to construct a machine capable of producing loops to be fleeced.
It is admitted that the machine of the patent in suit makes a fabric described in the Beilis fabric patent as one which can be finished in one operation, and that when so finished it is a completed article, with a substantial backing before it is fleeced, while defendants’ fabric has only floating loops for its backing, and is not a completed article until- it has been fleeced.
*918It is further admitted that there are substantial differences in, the construction and operation of the two machines, and that the construction of defendants’ machine follows in certain details the machines of the prior art.
In the light of these facts we are brought to a consideration of the status and scope of the patent in suit and of the single issue in the case — that of infringement. The criticisms upon the language of the patent itself will first be considered.
■It is objected that there is no reference in the specification to the fact that the object of the invention was to produce a fabric capable of being fleeced. But it is well settled that the patentee is not obliged to state all the objects of his invention, and that he is protected in all the beneficial uses thereof within its scope; and here no statement as to fleecing was necessar}'-, because the patent in suit concerned only a new “improved ribbed knit fabric, * * * produced and finished in one operation” (patent No. 561,558) on the patented machine. Whether it should thereafter be used as thus finished, or subjected to a new operation for fleecing, was immaterial. Furthermore, such a construction for fleecing was old in plain knit goods. There is no evidence that the fabric was ever practically used for any other, purpose, and the uncontradicted testimony is that this was the sole purpose to which the invention related.
The references to making the backing of different material are criticised by defendants as referring merely to a double-faced material. But such references might equally well suggest a fabric adapted for fleecing, such as a cotton body with a fleece lining of wool. It is contended that while the stated object of the invention in suit was such that the “extra thread is tightly interlaced with the loops,” etc., “ * * * whereas Fisher’s [defendants’] extra thread is not interlaced, is not secured to the main fabric at all,” etc. But the Fisher patent specifically describes means “to engage with an extra thread and secure it on one surface of the fabric, forming floating loops,” and explains how said loops are “caught on the inside of the fabric by the loops of the main thread.” Whether the defendants’ thread is not in fact interlaced will be discussed later.
Much stress is laid on the language quoted above which indicates that the supplemental thread must be brought “from the inside of the machine over the needles,” etc. But a reference to the specification shows that this statement was made in the course of a description by the patentee of the specific machine illustrated in the drawings, and that such limitation is nowhere else found, except in claim 5, not here in suit, but which covers this specific construction.
But it is argued that, as Beilis insists that however his machine be modified it must be “provided with jacks or similar devices to bring a thread over a needle to be interlaced with a mesh formed by such needle” and as defendants do not thus manipulate their thread, and do not interlace the loop in the body of the fabric, they do not infringe. The differences in the operation of the two machines and in the construction of the loop are fairly shown by the following diagrams and citations from complainants’ brief:
*919
*920“In tlie Exhibit Beilis Machine the loopers take tlie supplemental thread, and push it up against tlie shanks o£ the dial needles, lifting tlie junctions of the loops into the path of the cylinder needles, which rise through them; and thereby two things are done, to wit; (1) to form within the angle of tlie two sets of needles the loops of supplemental thread which are to constitute tlie backing in tlio finished fabric, and (2) ‘to bring the thread, w, over a (cylinder) needle 'to be interlaced with a mesh formed by such needle.’ Beilis patent, p. ,‘i, line SO. When later, the old loops of body thread on the cylinder needles are ‘cast oil,’ the parts of the supplemental thread over the cylinder needles are cast off with them, resulting in the interlacing of the supplemental thread with the meshes formed by tlie cylinder needles, or, as the Fisher patent describes it, tlie extra thread is secured ‘on one surface of ihe fabric, forming floating loops.’
“In the defendants’ machine tlie loopers take the, supplemental thread, and bring it over the shanks of the dial needles, and press it down between those needles, and thereby the same two things above mentioned as in tlie Beilis machine are done, to wit; Cl) to form within the angle of the two sets of needles flic loops of supplemental thread which are to constitute the backing in the finished fabric, and (2) ‘to bring the thread, w, over a (dial) needle to be interlaced with a mesh formed by such needle.’ Beilis patent, p. 3, line 80. When, inter, the old loops of body thread on the dial needles are ‘east off.’ the parts of the supplemental thread over the dial needles are cast off with them, resulting in the interlacing of the supplemental thread with the meshes formed by the dial needles, or, as the Fisher patent describes it, tlio extra thread is secured ‘on one-surface of tlie fabric, forming floating loops.'
“In both complainants’ and defendants’ machines, it is tlie upper crest of tlie crinkled supplemental thread (in black in diagram) which is brought over and lies outside the needles, and is afterwards caught into or interlaced with the meshes of the fabric, and in both machines it is tlie lower or bottom wave of tlie crinkled supplemental thread which is inside the angle of tlie two sets of needles, and which afterwards becomes the backing or floating loop in tlie fabric. In one case the thread is caught into or interlaced with the meshes formed by the cylinder needles and in the other case with tlie meshes formed by the dial needles. In other words, tlie fabric from defendants’ machine lias the looped supplemental thread interlaced with tlie front wales of tlie fabric, while the fabric from the Exhibit Beilis Machine has tlie looped supplemental thread interlaced with 1iio roar wales, that is. when you look at the fabric oil its looped face. * * * "Defendants say that Fisher’s loopers cooperate with one set of needles only — tlie dial needles. Fisher’s loopers cooperate also with his cylinder needles, because these loopers, after bringing the thread down over the dial needles to form tlie crinkle', as shown in liis Fig. V, continue to hold down the thread in loops, not only until it lias been cast off ihe dial needles with the loops of body thread, but tlie loopers still continue to hold down the extra thread loops after they have been brought down onto the loops of body thread of the cylinder needles, until tied in by ibe loops cast off by the latter, and furthermore (lie loopers are then ‘further depressed a trifle to tighten tlie extra thread loops’ (Fisher patent, p. 318. lines 33-84). As will be seen by tlie shape of tlie looper cam, in Fig. IV of Fislier patent (p. 82(5). the loopers are held down all tlie way round the cylinder, except where momentarily raised (by cam 81) to take tlie extra thread from guide ,eye 34. Fisher's-loopers thus do co-operate with both sets or' needles by first forming the extra thread loops over the dial needles, and by holding those loops onto the loops formed by the cylinder needles until the extra loops have been tied in.
“In botli the machine of tlie Beilis patent sued upon and defendants’ machine, the slnmks of the dial needles act in conjunction with the loopers to form the loops of tlie supplemental thread that are to be engaged with the knit fabric, and in both it requires the co-operation of both sets of needles and the loopers in order to form tlie said loops, and to cause them to be engaged with the fabric, so that Die loops of supplemental thread will project from tlie back of tlie fabric to form the backing therefor, as is desired in tile product of the machine.”
*921i'he Beilis loop is formed by having the extra thread pushed against the dial needles and out over the cylinder needles. The Fisher loop is formed by having the extra thread pushed against and over and down between the dial needles carrying a body thread. When the dial needle withdraws, the body and supplemental threads are cast off together, and thereby the two become interlaced. This operation is described in the Fisher patent as follows:
"As tlie dial needles continué their outward "movement, the extra thread slips hack over (he ends of the latches onto the shanks of the needles, where it is left with just a trifle of slack, so that as the' dial needles move in again, having engaged with the main thread, they draw it easily under the extra thread, wiiicli is cast off over the needle Iio'oks at the same time as one loop of tin' main thread, and is caught on the inside of tlie fabric by tlie loops of the main thread."
The operation and result of the two devices thus differ in that in the one the supplemental thread is pushed from the inside outward over the cylinder needles, and thereby firmly interlaced in the body of the fabric; in the other the supplementary thread is pushed in from the outside, and interlaced, “secured,” or “caught on the inside of the fabric.” as the patentee says.
In the light of the foregoing discussion, it is seen that not only was Beilis the first to produce a fleecing ribber and a fleece rib, but he was the first to produce a machine, which interlaced loops on a double ribbed fabric. Tde was the first to conceive a practical method and means for obviating the mechanical difficulties attendant upon the introduction of the extra needles. It may, therefore, fairly be said that he fulfilled the requirements of a generic invention, in that he devised a machine which performed the function o’f looping on a ribbed fabric, a function never performed thereon by any earlier machine, and thereby produced a result never before produced, namely, a ribbed fabric capable of being fleeced, and that in doing this he exercised invention of a high order. And inasmuch as there is no prior art limiting Beilis as the first to produce a machine capable' of providing loops on a ribbed fabric, adapted to be fleeced, wc think his invention is entitled to be regarded as of such primary character as to embrace defendants' machine, which performs the same functions of looping and engaging a thread in the fabric by a combination of means covered by the terms o f the claims in suit, and operating on the same principle, with the same resulting fleecing capacity.
It is argued by defendants, and found by the court below, that the Beilis invention is not a meritorious one because its machines are inoperative or impracticable for successful commercial operation. This argument rests upon the following contentions: Beilis, in his subsequent patent. Mo. 574,129, for an improvement, consisting in the addition of a ring to his prior machine, saj'S as follows:
“The upper peripheral edge, s, of the ring, S, also serves to direct the finished fabric..which is drawn by suitable takeups, downward, so that the newly formed backing loops do not come into tlie way of the jacks to bo next actuated, which, as has been found, was the case where no such ring, S, was provided on the machine, ilie jacks on such machiues generally catching the *922loop previously formed, and tearing on its upward motion tho threads apart, destroying in this way the backing, but this is entirely obviated by the use of the said ring, S.”
All the Beilis machines, with perhaps one exception, are provided with this ring. Scott & Williams, the owners of one half of the patent in suit, have patented and make a different machine, and certain hostile experts testify that in their opinion the Beilis machine is impracticable for various reasons.
_ This last contention is met by proof that the Beilis machines with the ring improvement have been in successful commercial operation for some eight years, and the theories advanced to show why the Beilis machines would not run successfully are denied by witnesses who claim to testify from actual observation.
The Scott & Williams machines are different in some particulars from the specific construction of the patent, but the testimony of complainants’ experts, not disproved by defendants, is to the effect that these machines are within the patented construction. The patented ring is an improvement on the original machine, and remedies a defect therein. But this is a mere detail improvement, and, in effect, merely amounts to an enlargement of the dial of the patent. We are unable to see, therefore, how it affects the meritorious character of the invention. It is frequently a characteristic of generic inventions that their first embodiments work imperfectly, and where the imperfections may be remedied, as in this case, by what amounts to a mere readjustment of relative sizes, such change does not affect the character of the underlying creative conception. In these circumstances, the majority of the court is of the opinion tl\at the decree of the court below as to the defendant corporation must be reversed, with costs.
Inasmuch as it does not appear that the defendant Kerman has any connection with the infringement, except as an officer of said corporation, the bill should be dismissed as to him, with costs. Hutter v. De. Q. Bottle Stopper Co., 128 Fed. 283, 62 C. C. A. 652.
The cause is remanded to the Circuit Court, with instructions to enter a decree in accordance with this opinion.