171 F. 870 | U.S. Circuit Court for the District of Northern New York | 1909
As the defense possessing merit is that complainant’s device or machine, in view of the prior art, fails to disclose patentable invention, and is therefore void, I shall confine myself to a description and consideration of the device of complainant and the patent in suit and to the prior art and its effect op the patent in suit here. The letters patent in suit were granted to Fred C. Wendell. January 12, 1892, upon an application filed March 30, 1891, for an ironing-machine. The proofs show title in the complainant company and plain infringement, if the patent be valid.
The specifications say:
“My invention relates to machines for ironing bed and table linen, and has as its primary object the construction of a simple machine of great capacity adapted to deliver the fabrics with smooth-finished surfaces and in a thoroughly dry condition. Heretofore machines of this character have generally been constructed with a hollow steam-heated drum combined either with ironing-rolls acting to confine the fabrics thereon, or with an endless belt partly encircling the drum for the same purpose. My invention is directed to the full .and complete utilization of the heating surface o. the drum and to the delivery of the fabric in a perfectly dry .condition at a convenient point. In constructing my machine I combine with the heating-drum a series of overlying co-operating rolls, which press the advancing fabric into intimate contact with the drum, and also an endless belt, which encircles the drum on the opposite side from the rollers, so that after the fabric is acted upon by the rolls it is carried around the remaining portion of the drum by the belt, being thus subjected during tlie secondary part of the operation to a further drying action. Inasmuch as the belt serves to carry the fabrics back to that side of*871 the drum on which they wore introduced, and as it is inconvenient to have them delivered into and out of the machine on the same side, 1 propose to combine with the belt: or apron above mentioned a second endless belt, or other suitable carrier, adapted to return the finished fabrics to the rear side of the machine and there deliver them.
“It will bo obvious to the skilled mechanic that the details of my construction are not of tlio essence of my invention, and that they may be modified at will, provided only the drum is combined with the rolls and the aprons in such maimer that they act successively to confine the fabrics, upon the drum and carry them completely around the same, or nearly so. * * * E represents a basket, table, or other support at the front of the machine, from which the fabrics are delivered between the surface of the drum and the first roll, C, As the drum revolves, the fabric is carried forward therewith under the successive rolls until it arrives at the rear side of the drum. I5y this time the fabric, which has been subjected to a high heat and to considerable pressure and entirely exposed to permit the escape of the vaporized moisture, is comparatively dry and presents a smooth surface. In passing the last roll at the rear, the fabric continues its downward course and is carried between the apron, D. and the surface of the drum under the latter and up to the front of the machine. In this passage under ihe drum the fabric is subjected to a further drying influence, so that on delivery at the front it is in a thoroughly dried condition. The delivery of the fabric over the front end of the apron is insured by the presence of a beveled doffer-bar, I, which may, however, be-replaced by any suitable device. * * *
‘It will be observed that in my machine I utilize the heated surface of nearly the entire circumference of the drum, so that when a drum of reasonably large size is used the fabrics are quickly and thoroughly ironed and dried m passing once through the machine. It will also lie observed that ihe belt covering the under side of the drum prevents the loss of heat which ordinarily occurs by radiation from uncovered drums. It will be observed that in my machine the ironing-rolls. Instead of being geared to the drum, as usual, are driven by frictional contact with the intervening fabric. This is found in practice to be of decided advantage, as the rollers, turning somewhat slower than the drum, act with a frictional effect to retard the advance of the fabric while it is being subjected io the polishing action of the drum. I also find it advantageous to make the rolls of successively increasing diameter, preferably by giving the felt covering ail increased thickness, and to adjust: them so that they boar successively with increasing pressure on the drum. I find that when 11ms proportioned and adjusted, and when driven from the drum by the frictional ei'feev, of the intervening fabric, instead of being driven by gearing, each roll will turn at. slightly higher speed than the one next in advance. The result of this is that the rolls act to draw or stretch out: the fabric, keeping Hie same under tension, so that the drum acts to give them a smoother and better finish than when the rolls are positively driven, as usual.”
Claims 1 to 4, inclusive, are in issue, and read:
“1. In an ironing-machine, the combination of a hollow drum, a series of rolls co-operating with the periphery of the drum on one side, and a traveling apron co-operating with the periphery of the drum on the opposite side and arranged to automatically receive the fabric from the Vast roll and return it in contact with the drum toward the side of the machine at which it entered, whereby the fabric is automatically subjected, first to the action of the successive ironing-rolls, and thereafter to the heating and drying action of the drum.
“2. In an ironing-machine, the combination of the rotary steam-heated metallic drum, the series of felt-covered rolls acting upon its upper surface, the-endless apron surrounding its under surface, and means, substantially as described, for driving said apron.
“3. In combination with the steam-heated metallic drum, the series of overlying rollers covered with felt, the endless apron encircling the lower portion of the drum to return the fabric to the front of the machine, and the second apron or carrier co-operating with the first to return the fabric to and deliver it to the rear of the machine.
*872 “4. In an ironing-machine, in combination with a rotary steam-heated, drum and means, substantially as described, for maintaining the fabrics in contact with the drum throughout substantially its entire circumference that they may return to a point near the point of introduction, a secondary carrier to deliver the fabrics after leaving the drum to the rear of the machine.”
The first claim calls for the combination, in an ironing-machine, of: (1). A hollow drum; (2) a series of rolls co-operating with the periphery of the drum on one side of such drum; (3) a traveling apron co-operating with the periphery of the drum on the other side thereof so arranged as to automatically receive the fabric from the last roll and return it in contact with the drum towards the side of the machine at which it entered, whereby the fabric is automatically subjected, first to the action of the successive ironing-rolls, and thereafter to the heating and drying action of the drum. This implies a heated drum, for I think it would be going far afield to surmise that the heating action of the drum is caused by friction. I think that we are to imply a drum that rotates and means for rotating it and means for moving the apron.
Claim 2 calls for: (1) The combination of a rotary steam-heated metallic drum; (2) the series of felt-covered rolls acting upon its upper surface; (3) an endless apron surrounding the under surface of the drum; and (4) means for driving the apron.
Claim 3 calls for: (1) The steam-heated metallic drum; (2) the series of overlying rollers covered with felt; (3) the endless apron encircling .the lower portion of the drum to return the fabric to the front of the machine; and, (4) the second apron or carrier co-operating with the first to return the fabric to and leave or deliver it at the' rear of the machine.
Claim 4 calls for: (1) The same drum as do claims 2 and 3; (2) in general terms, for both the rollers on the upper side of the drum and the endless apron on the lower side thereof; and (3) the secondary carrier or apron for taking the fabric from the front, after delivery from the metallic drum, to the rear for final discharge or delivery.
The general construction and operation of this machine is as folio ws: We have a frame for supporting the structure, upon which is mounted, in the usual way, a hollow drum of metal, or covered with metal so as to present a smooth exterior surface. The shaft journals of the drum are hollow so as to permit the introduction of steam into the interior of the drum and “maintain the same in a highly heated condition.” On the table of the frame is mounted at each end a strong-half circle of iron, which support a series of rolls or rollers of the same _ length as the drum, and they are so mounted as to revolve by frictional contact with the revolving drum. The mountings of each roller have pressure screws, by means of which the rolls may be pressed with more or less force against the drum. These rollers are coveted with felt, or any other suitable material. Thus far this is an exceedingly simple and common device for carrying and pressing a strip of cloth, leather, or other flexible material between two presses, so to speak, and dry same, if moist. As the drum revolves, any such material fed in between the drum and the first roll of the series will
The axis of the drum is a little above the table of the frame, and the rolls begin and end a short distance above the plane of the axis. On the same iron half circle, forming a part of the frame, or connected therewith, and substantially on a line with the table of the frame, anti on each side of the drum, are pulleys on which, and on guide pulleys below, is mounted an endless apron of felt, canvas, or other suitable material, which, by means of said mountings and pulleys, is made to cover or come in contact with the surface of the lower half of the drum. There is a simple and suitable driving mechanism for this endless apron. It is made to move with the same speed as the drum. This is simple and is the carrying of an endless apron like a belt around a series of guiding pulleys; one part of the apron being at all times, unless something intervenes, in contact with the lower half of the hot drum. The result is that a garment, like a collar, a cuff, or a piece of cloth, fed in under one of the first-mentioned rollers on one side of the drum, will pass as the drum revolves under all the rollers on the upper side of the drum and between them and the outer surface of the drum, and then between the drum and this endless apron and be further smoothed and dried and to some extent, polished. Fed in at one side, the article would be carried around with the drum, retained by the rollers and apron to near the starting point.
It is not desirable to have it discharged or unloaded at the side of the drum where fed in, and hence we have an added apron also carried and guided in part by the same guide prdleys, and wholly by the same driving mechanism. The patentee says of his invention, before speaking of this added apron:
“The foregoing parts constitute a complete and. operative machine well adapted to the end in view. In order, however, to return the fabric to the rear and there deliver it, I provide a second endless apron or carrier,” etc.
This second apron engages with the first at or near the front and at the point where the articles would ordinarily and naturally be discharged, the drying and ironing process being complete, and continues in engagement carrying the articles between them until the rear of the machine is reached, when at or near the table they are thrown off. The'only function of this added apron is to aid in carrying the dried and ironed articles to the rear of the machine. It adds nothing to the efficiency of the machine as an ironing-machine. By properly arranging the pulleys that guide the added apron, the first apron is utilized to aid the second in carrying the articles, after being ironed, from the front of the machine to the rear. So far there is coaction between the ironing-machine proper and this added apron or carrier. I can discover no patentable invention in adding this apron for this purpose. Clearly it was not a mental conception amounting to patentable invention to conceive the idea that an article like a sheet.
Prior Art.
In the prior art we find the patent to J. P. Baldwin, No. 253,661, dated February 14, 1882, showing a frame with a hollow revoluble metal drum thereon, having a polished exterior surface, “adapted,” says the patent, “to be heated, preferably by steam, as is. usual in such machines.” This is the polishing roll and cannot be differentiated from that of the large metal revoluble cylinder of the patent in suit. Baldwin there provides pressure rolls above the upper half of the polishing cylinder mounted in the same frame or extensions of same, “arranged,” says Baldwin, “to bear against the periphery of the polishing roll with even pressure throughout its entire length. The rolls are preferably, of metal, of the construction hereafter set forth, and covered on their exterior surface with suitable textile material of considerable thickness, so as to render them elastic under pressure.” There is suitable means for turning the rolls and connections by means of cogwheels, etc. The articles to be ironed are fed in between the heated cylinder and first roll in front and carried, of course, under pressure between these rolls and the cylinder to the other side of the machine, where they drop or are discharged upon an inclined plane beneath the machine and slide back to the front of the machine. There are suitable means for increasing or diminishing the pressure between the main heated cylinder and these rolls, substantially those of the patent in suit. So far as frame, steam-heated cylinder with polished exterior surface, and rolls are concerned, AVendell is a substantial duplication of Baldwin. There is no patentable difference. There are minor changes and differences, but nothing that changes the elements or mode of operation or result, thus far; but Baldwin does not have either apron, and the articles to be ironed are not carried around the under side of the heated drum in contact therewith. The patent to Hamilton E. Smith, No. 166,648, of August 10, 1875, is in all substantial respects the same.
The patent to Hamilton E. Smith, of August 10, 1875, No. 166,647, for “improvement in ironing apparatus,” shows a different arrangement of the pressure rollers; that is, they are placed on the under half of the steam-heated cylinder, and this patent also shows the apron idea for carrying the articles and keeping them in contact with the heated cylinder as they pass between the cylinder and pressure rollers. Neither of these patents utilize substantially the entire exterior surface of the heated drum for drying and polishing the articles to be ironed. They do show that the pressure rollers can be attached so as to operate on either the upper or lower half of such drum, and, of course, on both at-the same time. The Smith patent, No. 166,647, also shows that an apron can be used to carry the goods and keep, them in contact with the drum on its under side. AVhether it shall be used in connection with the pressure rollers or not is merely a mat
“The polishing roller. A, is lien ted by means of steam, hot air, or other suitable means, which is introduced to the roller through a pipe, a, affixed to one of its gudgeons.”
Also:
“The rollers, B (the pressure rollers), respectively, revolve in journal boxes, 13. which are adjustable, so that the rollers can be set toward or from the-polishing roller, A, in order to accommodate different thicknesses of cloth, and the said rollers. B, together with auxiliary rollers, If, carry the clothes-supporting apron, C.”
Also:
“The auxiliary or apron rollers. F, are disposed in such a manner that a level portion, IT, is imparted to the apron, upon which level portion the clothes-to be ironed are spread, anil from which the same are carried to the polishing roller. The inner one of the rollers, F, revolves in contact with a guide roller,, G, and between these two rollers, F and G, the clothes are taken up from the: receiving portion, H, of the apron, and conducted to the polishing roller.”
Aprons anc apron rollers in an ironing machine for carrying the ironed goods to any desired point after being ironed are shown hr the patent to William Jones, No. 104,740, dated June 28, 1870. There the apron is below the hollow heated drum and the'pressure rollers and receives the ironed goods and carries them back to the operator below the table. By locating it differently, the goods could have been carried to the back of the machine, or to one end of the table, and by making a double apron they could be carried to the basement or to the garret.
In the Wiles patent of November 11, 1890, No. 440,292, granted prior to the filing of the application for the patent in suit, we have endless aprons for carrying and guiding the goods, and also for delivering same at the desired point. The same law which enables a roller and an apron moving in the same direction to grasp and carry articles between them will enable two aprons sufficiently near together moving in the same direction to grasp between them and carry goods in any desired direction and to any desired point. Such endless aprons by means of cogwheels and guiding pulleys will take and carry the goods first in one direction and then in the opposite direction.
“The pieces of goods, under operation being, as before described, just introduced upon the surface of the cylinder or bowl, m, m, and tightly held in its stretched state by the two delivery rollers, 1, 1, it immediately proceeds around the polished periphery of the cylinder, m, m, and is operated upon by bowls or rollers, r, r, placed at suitable distances round the cylinder, and which revolve by contact of their surfaces. These rollers or bowls are set or brought to any degree of pressure by means of the tighting screws, s, s, s, s, and the piece of goods being operated upon becomes mangled, calendered, and finished during the process of drying by the operation of the successive .system of bowls upon the cloth as it passes over the cylinder, m, m, until it is delivered in the finished state from the cylinder at t. It will be very evident, to practical persons conversant with these processes as at present conducted, that by passing the cloth around the bowl or cylinder, m, as just described, any degree of finish may be imparted to the goods whilst they are drying upon the surface of the heated bowl or cylinder by varying the degree of pressure of the top or pressing rollers or bowls; and also by making a corresponding variation in their number, or by gearing them so that'they shall-run at a greater or less degree of speed, as may be found desirable; or the goods may be taken off from the cylinder when any sufficient degree of finish has been imparted to them by this combination of mechanism or apparatus by delivering the piece from the machine by the aid of a pair of delivering rollers, which may be attached to any required part of the machinery, as shown at w, w, providing the cloth is ascertained to be sufficiently dried. It will, of course, be evident that in the construction and arrangement of such a combination of apparatus I am neither limited to the precise dimensions, order, or number of any of the before-mentioned rollers, bowls, 0» cylinders, nor to the materials of which they are composed; but as all such operations must be governed by the discretion of the operator, and. of the particular demand of finish the goods shall require, such variations in performing the combined process must be left to the judgment of the workman, and any degree of finish hitherto produced by mangles or calenders separately may then be obtained in working the above-described combination and arrangement of apparatus for stretching, mangling, drying, and finishing woven goods and fabrics.”
I regard it as immaterial in the construction of complainant’s. and of defendant’s alleged infringing machine whether the drum is positively driven and has gears meshing with the rolls to drive them, or whether the rolls are driven by frictional contact with the drum. The drum itself might be driven by frictional contact with the rolls if they are positively driven. Infringement could not be avoided by such a change as that, and to make such a change would not disclose patentable invention. It would be a mere choice of methods.
“Tile process of development in manufactures creates a constant demand for new appliances, which the skill of ordinary head workmen and engineers is generally adequate to devise, and which, indeed, are the natural and proper outgrowth of such development. Each stop forward prepares the way for the next, and each is usually taken by spontaneous trials and attempts in a hundred different places. To grant to a. single party a monopoly of every slight advance made, except where the exercise of invention, somewhat above ordinary mechanical or engineering skill, is distinctly shown, is unjust in principle, and injurious in its consequences.”
But it is said that the defendant has made a machine, an ironing-machine, or mangle, which in all essentials is a duplication, a Chinese copy of complainant’s. This is some evidence of utility and even novelty. If I had doubt, I should allow commercial success, adoption by the trade and users, and by defendant to turn the scale; but 1 have none. I can discover no mental conception amounting to patentable conception. Defendant urges as a reason, or reasons, for copying so closely, that it was found ready to hand, and that, as there is no patentable invention disclosed, it had the absolute light to use or copy, and that in putting the various well-known devices together in one machine it was impossible to avoid close imitation; also, that the complainant itself, or the prior owners of the patent, have for years substantially conceded that this Wendell patent, now expired, is void for want of patentable invention in view of the prior art. It is contended that the owners of the patent have commenced suits for alleged infringement, and that they have never pressed one to a final hearing and determination, although challenged so to do, etc., and that such owner at such times is now a constituent member of defendant company. I find no evidence that estops defendant from now asserting and proving, if it can, the validity of the patent in suit; but it is somewhat suggestive that the validity of the patent has not been adjudicated in view of the litigation begun. I simply say, however, that I do not think defendant has copied the complainant’s structure with any idea that it disclosed patentable invention. The defendant has not conceded the validity of the patent in suit.
There will be a decree dismissing the bill, with costs.
