Plumb v. New York, N. H. & H. R.

97 F. 645, 1899 U.S. App. LEXIS 3336
U.S. Circuit Court for the District of Connecticut·Decided October 31, 1899·No. No. 945·Published

Opinion

TOWNSEND, District Judge.

Final hearing on bill and answer raising question of validity of patent No. 348,289, granted August 31, 1886, to complainant’s assignor, Edward W. McKenna, for an air-brake attachment known as “back-up hose,” infringed by defendant. The patent is for a device to he used in connection with air brakes on railway trains. The old straight air brakes were applied by the direct pressure of air from the locomotive. In the later automatic brake system the brakes were applied by exhausting the air pressure. This device is intended to be used in connection with the automatic system. The object of the alleged invention was to provide a portable device adapted to be detachably attached to the train pipe at the end of any car, and to he operated by a brakeman to put on the .brakes. The device itself consists of a flexible tube with a one-half coupling at one end and a stopcock at the other [646] end. Its construction is practically identical with that of the ordinary garden hose. Counsel for complainant contend, however, that for several years after the invention of the automatic brake a problem was presented of providing an effective contrivance for controlling a train which could be practically and conveniently operated from the platform of the car, and attached to any car without any extra mechanism, and without any interference with the operation of the air-brake system, and that this patentee was the first to solve the problem; that his solution involved invention, and that greater safety to employés has been secured thereby. The claims are as follows:

“(1) The combination of a railway car, an air brake and its pipes, and a flexible removable pipe or tube, D, connected to the brake pipes at its lower end, its upper end extending to above the platform o£ the car, and provided with a cock, substantially as and for the purposes set forth. (2) The combination of a car, an air brake, its pipe, O, a flexible portion, G1, thereon having the usual half coupling, c, a separata tube or pipe, D, having a half coupling, d, upon one end, adapted to be coupled to the half coupling, c, and a stopcock, ci, at the upper end; said device being thus adapted to be coupled to the end of said brake pipe or tube, and to be carried up alongside the hand rail to a convenient position to be used, substantially as set forth.”

Long prior to this alleged invention, cars had been equipped with the “conductor’s valve,” usually placed in the water-closet of the coach, and having a cord attached to its handle, which passed through the interior of the car, so that the conductor or trainman could reach and operate it from any position within the car, and in some instances from the doorway opening onto the platform. So, also, long prior to said alleged invention, cocks were attached under the platform at each end of each car to the train pipe. A man, by lying down on the platform, or standing on its step, could operate these train pipe or angle cocks, and vent the pipe, in exactly the same way, and with exactly the same results, as by the operation of the conductor’s valve or of the patented device. Each of these old devices is still in use. The patented device is simply a short extension of the train pipe, with a cock on the end. Another device, known as the “Richmond tail hose,” was admittedly used, long prior to the alleged invention, on the Richmond, Fredericksburg & Potomac Railroad. Its construction was identical with that claimed in the patent, — a removable short piece of hose, with a cock on one end and a coupler on the other, — except that it had double, or male and female, couplings, so as to fit either coupling on the car to which it was to’be attached. It was operated in the same way, by a man standing on the platform, and with the same result, namely, to vent the train pipe. The only material difference between this coupler and that of the patent in suit was that, being attached to the old straight air brake, the venting of the pipe released, instead of applying, the .brakes. The breaking of the train pipe, the bursting of the hose between the cars, the opening of the angle cock or of the conductor’s cock, would do just as effectively what this device does, namely, vent the train pipe and apply the brakes.

In these circumstances, the question presented is- whether it involved invention to detachably couple on to the train pipe a piece of [647] hose to serve as an additional vent. The prior art already showed two such permanent valves for this identical purpose in automatic brakes, and one identical removable valve device in straight air brakes. Even if none of these prior devices anticipate, yet they must be reckoned with in considering the problem presented. Although the patented device is more convenient than the conductor’s or train-pipe valve, yet there was no novelty in the means contrived. The idea of greater convenience by means of a detachable attachment was shown in the Richmond tail hose. Its use in the old operation of venting the hose for the analogous purpose of releasing instead of applying the brakes is strikingly like the analogous uses in Pennsylvania R. Co. v. Locomotive Engine Safety-Truck Co., 110 U. S. 490, 4 Sup. Ct. 220, and Harwood v. Railroad Co., 11 H. L. Cas. 666. In Aron v. Railway Co. (C. C.) 26 Fed. 314; Id., 132 U. S. 85, 10 Sup. Ct. 24, — where the patent in suit covered a connection for opening two gates simultaneously, which had hitherto been separately operated, — Judge Wallace said:

“The patentee is entitled to the merit of being the first to conceive of the convenience and utility of a gate opening and closing mechanism which could be operated efficiently by an attendant in the new situation. His right to a patent, however, must rest upon tlie novelty of the means he contrives to carry his idea into practical operation.”

If this McKenna device had been first in use, and some one had devised the conductor’s or train-pipe or Richmond valve, it cannot be doubted that they would have been held to be infringements. Peters v. Manufacturing Co., 129 U. S. 537, 9 Sup. Ct. 389; Knapp v. Morss, 150 U. S. 231, 14 Sup. Ct. 81.

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Plumb v. New York, N. H. & H. R., 97 F. 645, 1899 U.S. App. LEXIS 3336 (circtdct 1899).

97 F. 645 (Plumb v. New York, N. H. & H. R.) — published by Counsel Stack Legal Research, free access to 12M+ legal documents.

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