Abstract: An adjustable stop member is disclosed for establishing a presettable period of runout for an interval timer. The stop member includes a series of openings formed at a common radial distance from a timer setting shaft receiving aperture and a protruding stop. A face plate is provided for the timer with a time scale on the face plate which corresponds with the series of openings in the stop member. The stop member is mounted in adjusted overlying relation to the face plate with a preselected opening of the stop member receiving the face plate stud which cooperates with the timer setting shaft in maintaining the stop member and its protrusion in adjusted position whereby a knob on the timer setting shaft may be rotated into engagement with the stop member protrusion for setting the interval timer to a predetermined period of runout.

Abstract: A timer controlled heat emission device for modifying the operation of a wall mounted thermostat includes a housing slidably mounted on the wall adjacent the thermostat, an electrical heating element disposed in the housing in heat emission relation with the thermostat, switching means movable between a first position in which the heating element is connected to a source of electricity and a second position in which the heating element is disconnected from the source, a timer activatable for a preselected time period, and control means operatively connected to the timer for moving the switching means between the two positions upon the activation and deactivation of the timer.

Abstract: A pneumatic control device for operating pneumatic apparatus in a pneumatic control system. The control device includes a pneumatic conduit having a bleed orifice therein, one end of the conduit being adapted to accommodate an air pressure source, a venting member for regulating the flow of air through the bleed orifice, the venting member being movable between a first position in which the flow of air through the orifice is unimpeded by the venting member and a second position in which substantially no air will flow through the orifice, a timing means activatable for a variable but predetermined time period which time period is selectable at the outset of activation, and a control means connected to the timing means and to the venting member for controlling the movement of the venting member between the first and second positions upon the activation and deactivation of the timing means.