Abstract: Thermoplastic pipes held by a pair of clamp mechanisms are fusibly interconnected. A torque wrench moves one clamp mechanism toward the other clamp mechanism and provides a signal when the force applied is a given value. A locking mechanism is operated in response to this signal to lock the torque wrench in position. The apparatus is programmed to release the locking mechanism at the end of a predetermined time period. Changes in the programmed conditions are effected in response to changes in the size of one of the clamp mechanisms.

Abstract: A driving apparatus which includes a driving and driven belt pulleys at least one of which is constructed to change the effective diameter thereof, in response to the rotational speed of a driving power source. An endless v-belt serves as the driving connection between the driving and driven pulleys. The belt pulley with a changeable effective diameter has a first fixed pulley plate, a second slidable pulley plate and at least one weight operated by the centrifugal force acting thereon. The weight serves to shift the second pulley plate relative to the first pulley plate thereby to change the effective diameter of an annular groove defined between the first and second pulley plates with the increase of the centrifugal force. Therefore, the speed ratio of a driven unit to the driving power source is varied in response to the speed of the driving power source.

Abstract: A passive seat belt system having a seat belt for restraining a wearer in the seat from being thrown away when large acceleration or deceleration has been exerted on the wearer, a reinforcing strip combined with the seat belt to give the seat belt a rigidity so that the seat belt can stretch by the help of only the above reinforcing strip, and a driving unit connected with the reinforcing strip for driving the strip so that the seat belt can automatically be stretched forward over the seat, whereby the wearer gets in and out of a vehicle very freely.

Abstract: A passive seat belt system having a seat belt for restraining a wearer in the seat from being thrown away when large acceleration or deceleration has been exerted on the wearer, a reinforcing strip combined with the seat belt to give the seat belt a rigidity so that the seat belt can stretch by the help of only above reinforcing strip, and a driving unit connected with the reinforcing strip for driving the strip so that the seat belt can automatically be stretched forward over the seat, whereby the wearer gets on and off a vehicle very freely.