Abstract: This device comprises a casing (2) of synthetic material containing a motor element (7) made of at least one alloy which memorizes its shape and having associated with it a movement transmission element consisting of a piston (9) and a rod (10) and acting on at least one indicator element (4) irreversibly recording each overstepping of a predetermined temperature, the casing being provided with transparent windows permitting the state of the indicator element or elements to be viewed.Application to the monitoring of the overstepping of a temperature.

Abstract: This device comprises a casing of synthetic material containing a motor element made of at least one alloy which memorizes its shape and having associated with it a movement transmission element consisting of a piston and a rod and acting on at least one indicator element irreversibly recording each overstepping of a predetermined temperature, the casing being provided with transparent windows permitting the state of the indicator element or elements to be viewed.

Abstract: This device comprises a casing of synthetic material containing a motor element made of at least one alloy which memorizes its shape and having associated with it a movement transmission element consisting of a piston and a rod and acting on at least one indicator element irreversibly recording each overstepping of a predetermined temperature, the casing being provided with transparent windows permitting the state of the indicator element or elements to be viewed.

Abstract: A poultry coop comprises a plurality of feeding troughs, a winding drum and cable for each trough, a common drive for all the winding drums, and a clutch for each of the winding drums including a manually movable operator for selectively coupling and decoupling its respective winding drum to the drive in order to lift or lower its respective feeding trough.

Abstract: A temperature-monitoring and -witnessing device has an at least partially transparent container forming a pair of adjacent chambers at least one of which is substantially closed and formed with a passage between the chambers, a valve including a metallic shape-memory element that deforms from one shape to another shape when cooled to a predetermined transition temperature for blocking the passage when the element is of the one shape and for unblocking the passage when the element is of the other shape, a body of liquid in the one closed chamber and confined therein when the shape-memory element is of the one shape, and a dye or the like in the other chamber capable of coloring the liquid. Thus the liquid will only be colored when the element has deformed to the other shape and the device is below the transition temperature. Normally the liquid has a freezing point generally at the transition temperature.