Eaton & Prince Co. v. Wadsworth

BAKER, Circuit Judge.

This is an appeal from a decree adjudging that there was no equity in appellant’s bill for infringement of claim 6 of letters patent No. 347,778, August 24, 1886, to appellant’s assignors. The claim is as follows:

“(6) In an elevator safety-brake, the combination, with an expansible ball-governor, of a trigger located relatively to the governor, substantially as shown, whereby said trigger is operated directly by contact therewith of the governor-balls, essentially as specified.”

Small (No. 228,284, June 1, 1880) had shown, in an elevator safety-brake, the combination of an…