will be open ard will be The annexed engraving shows an improved device for comprises novel features which cannot be clearly described kept open by the elevator until it passes that floor, when they opening and closing hatchway covers or dvors as the eleva- without engravings. will follow the… … blacksmiths’ use. The invention consists in con- River, by which Mr. Sevey was. killed, and Mr. IMPROVED HATCHWAY. Crowley died since of. his injuries. Since that time necting the cam lever with the movable jaw by there have been eleven elevator accidents, and some a slotted plate, so that the…
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