Abstract: An engine powered rotary lawn mower has a brake which upon being engaged stops the engine crankshaft and the cutter blade fixed thereto. A deadman control on the handle of the mower, upon being moved partway to the "run" position in which it must be held to enable operation of the mower, disengages the brake. A manually activated gravity deactivated latch holds the deadman control in brake-off position to enable starting the engine, until the deadman control is moved all the way to the "run" position whereupon gravity deactivates the brake.

Abstract: A card file having a rotor with radiating arms, each of which has a card-carrying tray detachably connected thereto. The rotor is mounted in a housing for rotation about a horizontal axis so that each tray can be brought to a detent-defined viewing position at which the tray is disposed in a substantially horizontal attitude affording ready access to the file cards carried thereby. Inwardly facing ribs on the lower portion of the housing have their edges concentric to the axis of the rotor to be engagable by the outer extremities of the trays as they traverse the lower portion of their orbit upon rotation of the rotor, to thereby prevent detachment of the trays from the rotor arms. The various components of the rotor are held assembled with one another and with the housing entirely without reliance upon screws, bolts, rivets or the like.

Abstract: An automatic armature production line comprising an assembling machine by which the component parts of an armature core assembly are assembled, a bank of armature winding machines by which the armatures are wound, a welding machine by which the wire leads connecting successively wound coils are physically and electrically connected to the terminals of the commutator, a testing station at which the completed armatures are tested for electrical continuity, and a transfer system by which the armature core assemblies and then the wound armatures are quickly moved from one work station to another, the transfer system comprising a plurality of identical cylindrical carriers that have axial cavities into which the armature core assemblies and the wound armatures are inserted and which roll along downwardly inclined tracks that lead from station to station, and which carriers have a flat surface spaced from their axes of rotation to coact with flat surfaced guides at the different work stations to hold the carriers i

Abstract: A pan-like spilled fuel diverter overlies the fuel tank of a small engine and has the filler neck on the top of the tank projecting through a hole in the bottom wall of the diverter with a liquid-tight connection therebetween. A portion of the diverter projects laterally beyond a side of the tank remote from the engine cylinder and has a downwardly projecting discharge spout spaced from the tank. A downwardly and outwardly slanting deflector at the bottom end of the spout directs spilled liquid that is caught by the diverter away from the tank.

Abstract: Leaf tobacco or the like in a substantially airtight enclosure is cured and dried by circulating through the enclosure air that is controllably heated by a forced air fuel burner located in an elongated vertically oriented duct outside the enclosure. The outlet end of the duct is communicated with the enclosure at the bottom thereof, and its upper inlet end is controllably communicable with the enclosure at the top thereof and with the ambient atmosphere. The air intake port of the fuel burner receives only air flowing through the duct. Air circulation is effected by an electric motor driven fan near the inlet of the duct, and a restriction in the duct produces a pressure drop across the burner that prevents back-drafts through it.