Abstract: A welding film includes a phenoxy resin, in which a z average molecular weight of the phenoxy resin is 70,000 or more, and a ratio [Mz/Mn] between the z average molecular weight and a number average molecular weight of the phenoxy resin is 5.0 or more.

Abstract: An automobile headlamp inclination controller comprises a reduction gear group coupled between a headlamp and a d.c. motor. The d.c. motor has two windings, one for rotating a rotor in one direction and the other for rotating the rotor in an opposite direction. An angular position switch has a pair of fixed conductors and a plurality of trace conductors connected between d.c. motor and a manual operation switch for controlling the angular positions of the headlamp in response to the setting of the manual operation switch. The angular position switch has insulating portions corresponding to the angular positions of the headlamp. The insulating portions are used for stopping the d.c. motor when one of the trace conductors contacts with the insulating portion.

Abstract: An A.C. voltage picked up from the alternator driven by an internal combustion engine is converted into a pulse train signal so that the number of the pulses is counted for a period of time defined by a reference timing signal produced in synchronization with the rotation of the crankshaft of the engine. When the number of the pulses reaches a predetermined value during the period of time, a counter produces an output signal to indicate that the slipping rate of the belt is within a tolerance. On the other hand, when the number of pulses is less than the predetermined number, the counter does not produce an output signal (indicating that the slipping rate is over the tolerance). The output of the counter may be averaged over a plurality of measuring times.