Abstract: A stroboscopic timing device for an internal combustion engine includes a switchable light source having a light emitter and a base for mounting the light source on an exterior surface of an engine adjacent to a rotating shaft such as a camshaft or a crankshaft. A power source and trigger circuit are operatively associated with the light source, and at least the trigger circuit is enclosed within a housing mounted to the base. A sensor, which is removeably cabled to the switchable light source, triggers energization of the light source when a predetermined engine operating condition, such as a spark voltage, is detected.

Abstract: A stroboscopic timing device for an internal combustion engine includes a switchable light source having a light emitter and a base for mounting the light source on an exterior surface of an engine adjacent to a rotating shaft such as a camshaft or a crankshaft. A power source and trigger circuit are operatively associated with the light source, and at least the trigger circuit is enclosed within a housing mounted to the base. A sensor, which is removeably cabled to the switchable light source, triggers energization of the light source when a predetermined engine operating condition, such as a spark voltage, is detected.

Abstract: An on/off valve for a liquid-directing funnel having a tapered funnel outlet spout features a substantially spherical occluding element resident in the outlet spout. The diameter of the occluding element is such that the occluding element rests against the wall of the tapered spout close to a funnel outlet to prevent passage of liquid therethrough while minimizing discharge at the funnel outlet when the occluding element shuts off flow from the funnel. The occluding element's position in the outlet spout is determined by a wire-like element protruding from the occluding element out of the funnel outlet, the protruding element extending substantially parallel to the outlet spout axis and then bending to form a transverse arm which contacts a rim of a vessel being filled by the funnel whenever one wishes to start flow therefrom.