Lee v. Upson & Hart Co.
Opinion of the Court
This is a bill in equity which is based upon the alleged 'infringement of two letters patent, the first being No. 365,819, dated
“The improved art herein described of but-welding the ends of metal tubes, consisting in iirst shaping the end to be welded, then closing the end of the tube sufficiently to bring the edges each opposite to the other, and then heating and welding betweon dies shaped to force the inwardly bent portions of the end of the tube together, and form a but-weld, substantially as and for the purposes set forth.”
Before the date of Jordan’s improvement, the handles of hollow handled cutlery had been made by but-welding the side seams, and by soldering, brazing;, and lap-welding the end seam, and all these methods of uniting the edges of the tubular blank were well known. The fact that side seams were but-welded is not important, for there is an important practical difference between but-welding a longitudinal seam, where very little fin is formed, and but-welding the end portions of a tube where the metal is contracted into a eup-liko form, and flows out more than it does at the sides. The flat or “square” ends of the handles of the Beecher and Patterson patents were lap-welded. The Jeralds and Lawton patent of 1884 showed a tubular metallic blank for a hollow handle, having at one end projecting lips which were bent inwardly, edge to edge, and brazed together. The lips of the blank were very like the Jordan blank, wore bent towards each in the same way, but nearer together than in that blank, for the purpose of being cemented by the brazing process. A Jeralds and Lawton blank, of the proper thickness, was capable of being but-welded by the use of the appropriate dies, and a skilled forger of iuetals could have but-welded such a blank before the date of the Jordan invention, if he had been told to do it. Under this state of facts, without other testimony in regard to the history of the art, it would seem to be an advance not amounting to invention, to bring the inwardly inclined ends of the Jeralds and Law-
The complainant at this point of the case urges that the Jeralds and Lawton blank and the Jordan blank are different things, because the edges of the earlier blank are brought close together for the purpose of brazing, while there is a considerable space between the edges of the later blank. It is said, with a good deal of earnestness, that if the ends of the Jordan blanks were bent together, as is the case with “Hart’s •Oval Handle,” {which is substantially like the Jeralds and Lawton blank,) there would be metal in a space which ought to be empty, and that such metal would be surplusage, and would either form a fin which would prevent the dies from coming together and interfere with the perfection of the weld, or would be driven within the hollow space which would tend “to crippling of the surface of-the hollow handle.” It is thus contended that the invention consisted in part in so arranging the lips with reference to each other that there would be no surplusage of metal, and only a small fin, and that, therefore, merely but-welding a Jeralds and Lawton blank was far from the Jordan invention. The difficulty in the circumstances referred to is rather the difficulty of making an article with commercial success, than the impossibility of making, with the use of proper dies, a but-weld; for it is testified 'by the plaintiff, who is an expert upon the subject, that, under favorable conditions of dies, the end should but-weld, and it seems most plain that if the handles, made after the pattern of “Hart’s Oval Handle,” were not properly but-welded, and too much fin was created, the cause would be apparent to the skilled mechanic, who would make his dies of the proper shape, and would, from the knowledge gained by experience, regulate the space between the edges, which were to be brought together
Case-law data current through December 31, 2025. Source: CourtListener bulk data.