Abstract: An internal combustion engine provided with an idling adjusting device including a by-pass air passage which by-passes a throttle valve in a main air passage. The engine is further provided with an auxiliary air introducing device which increases the cross-sectional area of the by-pass air passage as engine temperature and/or ambient air temperature are above respectively predetermined temperatures during starting operation of the engine.

Abstract: In an engine system including an internal combustion engine and an exhaust turbine supercharger, a valve stop mechanism is provided to stop the throttle valve of the engine in an angular position anterior to the idle position thereof when the throttle valve is suddenly moved toward the idle position in the presence of an air pressure higher than a predetermined value in the air induction passageway of the engine downstream of the compressor unit of the supercharger and upstream of the throttle valve of the engine so as to preclude production of pressure surges in exhaust turbine supercharger.

Abstract: A lifting and positioning apparatus for construction panels such as sheet rock, the apparatus including at least one lifting standard having a base, a fixed strut supported vertically from the base, a movable strut supported from the fixed strut, a guide and latch arrangement for retaining the struts in generally parallel relationship, a handle on the movable strut for elevating same in relation to the fixed strut and the base, and a panel engaging rail supported on the movable strut. The panel engaging rail may be supported at the top of the movable strut, in which case, two of the standards are used to elevate and position a panel against the underside of a ceiling framework. In an alternative embodiment, only one standard is used and includes a cleat-like rail at the bottom of the movable strut to engage the lower edge of a panel to be elevated along a vertical wall framework.