Abstract: An equipment rack incorporating four linked members which mount an equipment rack support to a hitch insert. The linked members are formed by two pairs of pivotally linked arms which in turn are pivotally inked to the hitch insert and to an equipment rack mounting bracket. Each pair of linked arms provides three pivot bearings which have mutually parallel axes. In the collapsed position the linked arms making up each pair are parallel and the equipment rack support and hitch insert are in juxtaposition. In the extended position the arms making up each pair are substantially co-linear. A mechanical link locks the rack support to the hitch insert when the rack is retracted against the rear of the vehicle.

Abstract: An equipment rack incorporating four linked members which mount an equipment rack support to a hitch insert. The linked members are formed by two pairs of pivotally linked arms which in turn are pivotally linked to the hitch insert and to an equipment rack mounting bracket. Each pair of linked arms provides three pivot bearings which have mutually parallel axes. In the collapsed position the linked arms making up each pair are parallel and the equipment rack support and hitch insert are in juxtaposition. In the extended position the arms making up each pair are substantially co-linear. A mechanical link locks the rack support to the hitch insert when the rack is retracted against the rear of the vehicle.

Abstract: A plant growing device includes a two sectional base having an upper and a lower portion, wherein a mechanism is provided for the controlled rotation of the upper portion relative to the stationary lower portion, and a flower pot containing a plant is positioned on top of the upper portion. A mechanism for delivering a controlled supply of water is coupled to the mechanism for rotation.

Abstract: Apparatus for periodically withdrawing power from an alternating current power signal on a power distribution line at the source of the power signal, including an inductance across the power distribution line in series with a silicon controlled rectifier at a frequency which is a sub-multiple of the frequency which is a sub-multiple of the frequency of the power signal and synchronized therewith and means for detecting the periodic variation in the power of the power signal at a remote location and performing a control function, such as turning off a water heater for a predetermined time in accordance therewith and the method of performing the control function including withdrawing power from selected cycles of the power signal and remotely detecting the withdrawn power and performing the control function in accordance with the detection of the withdrawn power.