Joseph P. Bradley, Bridge v. Excelsior Company — Opinion of the Court
“ The patent relates to an oven-shelf placed on a level with the bottom of the oven when the door is open, and outside of the oven, to serve as a shelf for pans and other vessels to rest on, when drawn out of, or shoved into, the oven. The claim is not for the shelf as that is admitted to be old, but for an automatic device for raising the shelf upright and enclosing it within the door when the latter is closed, and letting it down to a horizontal position when the door is opened. ”
