Abstract: Vehicle driving traction is substantially increased by applying a selected quantity of granular material to the roadway surface forwardly of driving wheels by a remotely controlled apparatus which includes a quantity of granular material operatively connected with a tube terminating adjacent the surface of the earth forwardly of driving wheels.

Abstract: A trigger safety device for a firearm having a trigger pivotal within a trigger guard on the firearm is formed by an integral end, side wall and bight portion body forming a socket substantially enveloping the trigger guard and including J-shaped hook means engaging the trigger guard and supported by the side walls with an axial compression spring biasing the hook means into engagement with the trigger guard.

Abstract: A mailbox formed by an upright hollow housing closed by a top door and having a trap door intermediate its height separating the hollow housing into an upper compartment and a lower compartment. The trap door forms a bottom for the upper compartment for supporting mail deposited therein. The top access door is gang connected with the trap door for opening and closing the hollow housing and moving the trap door from a closed position to a downward open position in sequence with the vertical movement of the access door. The housing wall is provided with an outlet door communicating with the lower compartment which is normally closed by a lockable door permitting authorized persons to remove mail or other articles falling by gravity into the lower compartment.

Abstract: A telephone timing device comprising a synchronous motor driven timer energized by a circuit having at least one switch activated by removing the handset from its cradle to start a time cycle. The telephone owner preselects the talking time by setting the timer which disconnects the telephone at a the predetermined time following an audible few seconds warning time to the telephone users. Once started the circuit completes each time period to reset the telephone for a subsequent talking time period. A locked housing containing the timer surrounds the telephone modular wall outlet jack.

Abstract: A roller skate having a frame mounting heel and toe sections which are independently adjustable to accommodate different foot and shoe sizes and wheels having spring supported axles whose ends are releasably positioned in slots in the frame in such a way as to permit rapid removal and replacement of the wheels. The heel section has a rigid ankle support and the toe section has a rigid toe receiving portion which are uniquely constructed and arranged to permit the skate to be worn safely with or without shoes.