Interior railway transportation system

In controlled self-propelled car transportation apparatus of the type in which a car travels along a track system having vertical aligned spaced track rail heads formed with convex semicircularly rounded surfaces facing each other in spaced relation;

• the car including a chassis;
• a pair of spaced swivel axle means mounted on the chassis;
• guide rollers journaled on each end of the swivel axle means normally biased axially away from each other;
• each guide roller being formed with a smooth concave groove continuously semicircularly rounded in cross section;
• the semicircularly rounded guide roller groove cross section maintaining complete rounded surface engagement with the semicircularly rounded track rail head surfaces at all times during car travel throughout the track system, thereby transmitting the car load to one of the track rail heads directly and uniformly throughout contacting semicircularly rounded guide roll and rail head surfaces.

In controlled self-propelled car transportation apparatus of the type in which a car travels along a track system provided with channel track sections formed with spaced track rail heads having circularly rounded surfaces facing each other in spaced relation;

• the car including a chassis;
• spaced brackets mounted on the chassis;
• swivel axle means mounted on each bracket;
• guide rollers having grooves journaled on each end of each swivel axle means;
• the guide roller grooves having spring-pressed engagement with rounded rail head surfaces;
• control strips having a series of spaced metal strip conductors thereon mounted between the rail heads on the web of channel track sections at predetermined locations along the track system;
• a plurality of contactor brush means pivotally mounted on one of the brackets on an axis parallel with the swivel axle axis;
• each brush means including a pivoted insulating finger having a contact member, a spring strip conductor connected with the contact member biasing the contact member pivotally away from the swivel axle means;
• and means for adjusting the biased location of each finger to provide the same constant location of all contact members with respect to the track;
• whereby the contact members uniformly engage respective spaced metal strip conductors on a control strip approached by a car traveling along the track system.

In controlled self-propelled car transportation apparatus of the type in which a car travels along a track system provided with channel track sections formed with spaced track rail heads having circularly rounded surfaces facing each other in spaced relation;

• the car including a chassis;
• a pair of spaced swivel axle means mounted on the chassis;
• guide rollers having grooves journaled on each end of each swivel axle means;
• the guide roller grooves having spring-pressed engagement with rounded rail head surfaces mounting the car for travel on said track system;
• pinch roll friction drive roller means mounted on the chassis between the spaced swivel axle means;
• the drive roller means having pressure roll driving engagement with one of the rail heads;
• and obstruction detecting bumper mechanism mounted on at least one end of the car including switch means actuated by said bumper means upon contact of the bumper means with an obstruction.

In controlled self-propelled car transportation apparatus of the type in which a car travels along a track system provided with channel track sections formed with spaced track rail heads having circularly rounded surfaces facing each other in spaced relation;

• the car including a chassis;
• a pair of spaced swivel axle means mounted on the chassis;
• guide rollers having grooves journaled on each end of each swivel axle means;
• the guide roller grooves having spring-pressed engagement with rounded rail head surfaces mounting the car for travel on said track system;
• pinch roll friction drive roller means mounted on the chassis between the spaced swivel axle means;
• the drive roller means having pressure roll driving engagement with one of the rail heads;
• swivel means mounted on the chassis;
• and a container for material to be transported by the car mounted on the swivel means;
• said container swivel mount allowing the container to orient in a horizontal position regardless of the position of the car traveling along the track system.