Abstract: The present invention relates to a method and an apparatus for measuring trace quantity of oxygen in a gas by reacting yellow phosphorus vapor and oxygen in a sample gas, and measuring the intensity of the light emitted by the reaction. Together with the sample gas, a constant amount of oxygen is continuously supplied to a reaction chamber so as to react with the yellow phosphorus vapor, and the intensity of the light emitted is measured. The oxygen concentration in the sample gas is determined from the difference between the value measured as above and the intensity of the light emitted by the reaction between the yellow phosphorus vapor and the added oxygen, or from the oxygen concentration obtained from the measured value and the concentration of the added oxygen.

Abstract: A cable clamp of the present invention comprises a base having a fixing portion on the lower surface, a flat clamp rockingly connected to the base, and a means for locking a distal end of the flat clamp to the base engageably or disengageably. The cable clamp retains electric wires between the base and the flat clamp. The locking member comprises a plate-shaped protrusion provided on the flat clamp or the base and a retaining protrusion formed with the outer surface thereof. A resilient retaining member is protrudingly provided on the flat clamp opposite the plate-shaped protrusion or the base and has a hole for engaging with the retaining protrusion. An engaging member is protrudingly provided on the same surface with the resilient retaining member in parallel and engaging with an inner surface of the plate-shaped protrusion. Further, a notched portion formed with a distal end of the resilient retaining member faces the engaging member.

Abstract: A lift apparatus for lifting cigarette filter plugs which receives cigarette filter plugs fresh from a plug making machine and delivered by a lower horizontal conveyer and upwardly conveys the plugs while piled in multiple layers to an upper horizontal conveyer. The lift apparatus has a pair of vertical conveyers formed of flat belts and diverging as they extend upwardly. A pressurizing conveyer is provided outwardly of a bend in the conveying passage extending from the lower horizontal conveyer to the vertical conveyers. This pressurizing conveyer is rotatable at a greater speed than the vertical conveyers.