97 F. 964 | 7th Cir. | 1899
after the foregoing statement, delivered the opinion of the court.
An inspection of the several forms of record books which appear as exhibits in this case demonstrates the utility of chat feature of the patent device by which “the leaves of the book are creased and rendered flexible at a line parallel to and a short distance from the back.” It produces a book whereof, in the language of the specifications, the leaves, when open, will “fall and lie substantially flat, and the pages thus exposed present, as nearly as possible, a level surface for convenience in writing and ruling thereon.” By this improvement the well-recognized defect of bulging leaves in the common form of large blank books, affecting both convenient use and durability, is obviated, and its value is manifest in such books required for records, accounts, and like uses. As the specifications further state, this object is accomplished “by forming a hinge-joint in the leaf at a line parallel to and a short distance from the binding,” and three several methods of producing such joint in the leaf are there described, corresponding to the different forms stated as one element, respectively, in the claims allowed, one being “by a crease made by folding as shown in Fig. 2,” which enters into the first claim of the patent. The appellant produced two record books as exhibits, of wliich he testifies that one is constructed in accordance with claim l of the patent, and the other “an ordinary record book, showing the old method of binding,” and “that the only difference in the construction of the two books is in
GROSSCUP, Circuit Judge, sat at (he hearing, but, by reason of illness, took no part in the decision of the appeal.