Abstract:
Improved flaps for tires have a reinforcement in the region of the increased thickness of material around the valve hole and the reinforcement comprises a rigid tubular insert within the valve hole and a layer of reinforced elastomer which forms a covering of the radially inner surface of the flap all around the insert.
Abstract:
A TIRE IS RETREADED BY APPLYING OF TREATED MATERIAL IN RINGS CIRCUMFERENTIALLY OF THE CARCASS, THEN ROTATING THE TIRE WHILE SUBJECTING THE POSITIONED BANDS TO A UNIFORM ROLLING PRESSURE OF AT LEAST .5 KG/CM.2, AND FINALLY VULCANIZING THE ASSEMBLY.
Abstract:
A wheel for heavy vehicles has a rim formed with a well base and a conical bead seat on either side of the well base. A disc is assembled with the rim in such a manner that a reference plane and a reference bore physically formed on the rim are respectively parallel to and coaxial with the middle circle of the rim--defined as the intersection of the rim and the plane of intersection of the conical surfaces of the bead seats.
Abstract:
A permanent magnet is mounted on each wheel of an automotive vehicle. In case of low pressure in one of the vehicle tires, the external magnetic field of the magnet mounted on the wheel for that tire is modified by an automatic movement of either the magnet or a shunt associated therewith. A magnetic field responsive switch is mounted on the vehicle frame next to each wheel-tire assembly. The switch next to the malfunctioning tire responds to the change in the magnetic field to activate a signal alerting the driver of the vehicle.
Abstract:
A driver is apprised, while driving, of an abnormal temperature or pressure in any of the tires of an automobile A receiver oscillator, mounted on the automobile frame near each tire, contains two inductors so arranged that the oscillator is normally blocked. A pair of inductors, associated with each tire and moving therewith, are arranged in series with a normally open switch, which is closed in response to the condition to be monitored. When this switch is closed, the passing of these latter inductors near those of the receiver oscillator causes it to become unblocked, thus producing a signal to warn the driver of the abnormal condition.
Abstract:
A vulcanization press has a fixed frame, a lower, horizontally movable mold plate secured to the frame, and an upper, vertically movable mold plate that can be closed with respect to the lower mold plate. The plates are clamped together in the closed position by a wedge cooperating with inclined thrust blocks, at least one thrust block being connected to each plate.
Abstract:
A pressure contact switch for monitoring the inflation pressure of tires comprises a piston subjected on one side to the pressure of the air in the tire and on the other side to the force of an opposing calibrated spring. A rod coaxial with the piston is formed with an inclined cam surface to push back a contact slide capable of sliding in a first bore. The rod is also formed with a guide and stop for a locking slide capable of sliding in a second bore having an axis perpendicular to that of the first bore. The two slides are urged at all times by springs in directions towards the intersection of the two bores.