...at the time," the judge expressed the following conclusion on the whole case as to construction : " I must therefore lay down the rule which is consistent...entire machine. It must, to use a logical phrase, assigu the d(tierentia of the new combination. This obligation flows directly from the condition of...

...should r _ ° particularly machinery, the specification must describe the improvement and ascCTtaiifthe define the novelty otherwise and in a more specific form than by mvention. ^e general description of the entire machine, and the patent was held to be void in this...

...indicating where the improvement lay or in what it consisted: Held, that the patent was void at law. In a patent for an improved arrangement or new combination...specific form than by the general description of the whole machine: it must assign the differentia of the new combination. Observations on Harmar v. Playne,...

...machine, that Lord Westburya remarks were addressed when he said : " I must, therefore, lay down the rule that in a patent for an improved arrangement or new...assign the differentia ' of the new combination." The entire machine in that case was a sewing machine ; the new combination was " an arrangement of...

...invention, the patent is void for insufficiency of specification. As Lord Westbury, C., expressed it, that " in a patent for an improved arrangement or...phrase, assign the differentia of the new combination." Wright v. Hancock (f) shows, however, the importance in general of making a definite and precise statement...

...describe and ascertain the invention, and, therefore, in a patent for an improved arrangement, or a new combination of machinery, the specification must...general description of the entire machine ; it must assign the differentia of the new combination, and if a specification is insufficient in this respect,...

...26.) In the case ofFoxwell v. Bostock(4 De GJ & S. 298) Lord Westbury, C., laid down the rule to be that in a patent for an improved arrangement or new...by the general description of the entire machine. " On both principle and authority it is most necessary that the specification should ascertain the...

...the case of Foxwell v. Bostuck (4 De Gr. J. and S. 298) Lord Westbury, C., laid down the rule to he that in a patent for an improved arrangement or new...by the general description of the entire machine. 'On both principle and authority it is most necessary that the specification shotild ascertain the...

...invention, and the manner in which it is to be performed In a patent for an improved invention, or a new combination of machinery, the specification must...by the general description of the entire machine." what is new and in Parkes v. Stevens, LR 8 Eq. 365 (1860), James, LJ, claimed to be T . , . ' , ^ j...

...consisted : — He'd, that the patent was void at law. Ib. In a patent for an improved arrangement or a new combination of machinery, the specification must...specific form, than by the general description of the whole machine : it must assign the differentia of the new combination. Ib. 7. An arrangement of apparatus...