Abstract: Detector apparatus adaptably mountable about the external surface of steam pipes and condensate pipes, and wherein the apparatus includes a curved temperature sensitive bi-metallic element fixedly mounted at one end and with the opposed end being free to flex. A push arm is mounted at the free end of the bi-metallic element in engagement with a temperature indicating element for indicating a temperature either within or outside of a range of desired maximums and minimums, utilizing calibrated reference in the form of a rotatable dial. The surface temperature of the steam or condensate pipe being monitored is determined. The apparatus is provided with mounting member or system capable of use in combination with cylindrical surfaces within a range of diameters.

Abstract: A cord locking device includes a channel-shaped housing within which a roller is rotably mounted. Oppositely positioned slots within the housing carry a serrated second roller down and away from said first roller, said serrated second roller travels along a grooved wall section, which has a bent portion at the lowermost portion thereof, permitting the second roller to rotate free of the wall at that position. A cord is trained over the first roller and is locked thereto or freely movably depending upon the position of the second roller.