Joseph McKenna

“ Indeed, it is a common experience in patent cases that mere mechanical facility can alter or change the form in which originality and merit expressed themselves, and assert for it the claim of invention. This case is an example of such pretension. We may repeat counsel's question, and ask: What did Henderson do that Murray did not do? ”

“ Both courts, however, concurred in ascribing invention to the Henderson device. In this both courts erred, and the decree of the District Court is therefore reversed, and the case remanded to that court, with directions to dismiss the bill of complaint, on the ground that the Henderson patent is invalid; it exhibiting no invention. ”

“ He made the U-frame which supported the hoising device of continuous metal, instead, as Murray did, of several pieces riveted together, and in the stirrup which it formed he rested the putlogs or beams, loosely making a hinged joint connection between the stirrup and the hoisting machines, with a resulting flexibility. ”