The Language of Specifications of Letters Patent for Invention; With the Authorities and Decisions in All the Important and Latest Cases (Paperback)

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1856 Excerpt: ...Alderson B. remarked (J), "If stems and rods are spoken of Morgan v. generally, the natural inference was, that they are to be Seawardof equal lengths;" and if they were to be otherwise, the patentee should have said in his specification, " I make my rods of different lengths, in order that the rest of my floats may enter at the same angle, and the way to do that is so and so;"or he might have said, "it may be determined so and so." Another instance of the error committed by trusting Drawings may to drawings as a particular description of the parts represented is afforded in the specification of Arkwright's patent. Though the invention employed the well known spiral cylinder in his machine, the drawing was so managed that it appeared as if a true cylinder Arkwright's. (with parallel sides) was to be used, (c) Unless these rules are attended to, many drawings, especially when the effect of foreshortening or perspective is attempted, might be rigidly correct as delineations of the appearance of an instrument or machine, without informing a stranger to the invention of the proper proportions of similar parts, as well as of their relative dimensions with reference to the rest of the (a) Forsyth v. Manton, W. (4) Morgan v. Seaward, 1 W. P. Law, 129., and Forsyth v. P. R. 170.(182.) Riviere, 1 W. P. R. 97. (e) Dav. P. C. 116. Godson on Patents, 123. Scale. machine. In all such cases a scale attached to the drawing, and described in the specification will be found useful, (a) Size and form The rapid increase of the number of specifications with of drawings. drawings attached, and a regard to the subsequent methodical publication of the drawings in lithograph to accompany the printed matter, have rendered necessary the establishment of...