Abstract: Semi-trailer units are configured to erect a mobile and scalable detention center to help relieve overcrowded conditions in prisons. A series of conventional semi-trailer units are modified and configured to create a detention center providing typical incarceration features. The trailer units can be arranged in different configurations to provide space for different purposes. Multiple trailer units can be positioned side by side along their length with the walls of the interior trailer units removed to increase the usable area within and among the joined trailer units. The detention center can be scaled up in overall size with additional units as necessary, and reduced in scale or deconstructed if the overcrowding situation were to become relieved.

Abstract: An electrical toaster is provided with timer means which is initiated when a food product carrier is secured in an operative position adjacent a toasting element. The timer means normally releases the carrier from its operative position after a toasting interval. In the event of a malfunction, the timer means operates a cut-out to interrupt the supply of power to the toasting element within a predetermined period to prevent combustion or ignition of the food product. The latter period is longer than the normal toasting interval. The timer means may include first and second timing devices for respectively timing the toasting interval and the predetermined cut-out period. Alternatively the timer means provides respective outputs for controlling the toasting interval and the cut-out period.