Abstract: A one-piece, collapsible, readily-portable and rapidly-erectable antenna includes a substantially-planar and electrically-conductive ground plane consisting essentially of a central base element and a plurality of electrically conductive assemblies uniformly spaced about and mounted on the base element, the assemblies being guided on telescoping support rods for movement between expanded and collapsed positions relative to the base assembly. An at-least-three-sided elongated frame structure has a first end mounted on the base element; the other end is movable toward and away from the base element between collapsed and expanded frame structure positions, to collapsibly support a conductive radiator portion, comprising a metal helix. The helix is extended when the frame structure is expanded and is retracted when the frame structure is collapsed.

Abstract: An audience polling system includes a plurality of wireless transmitters, each transmitter capable of transmitting a pulse of electromagnetic energy on a selected one of a group of predetermined frequencies. Each frequency selected on which to transmit corresponds to one of a group of suggested responses to a given stimulus. The polling system includes a receiver for receiving the transmitted pulses and electronic counters for tallying the number of pulses received on each of the selected frequencies. An electronic display presents the results of the tallying for observation by the audience or others.

Abstract: A tool for working concrete. The body of the tool has a face with multiple openings and is used to tamp gravel from the surface of the concrete and bring the cream to the surface.

Abstract: An electronic voting system includes a plurality of wireless response units, each response unit capable of transmitting several different digitally coded signals. Each of these digitally coded signals corresponds to the response of a person responding to a given stimulus. Each response unit transmits a selected digitally coded response via a radio frequency signal during one of a series of time intervals, a different time interval corresponding to each of the response units. An interrogating and response processing unit signals the response units to commence response transmission and receives, processes and displays the transmitted responses for observation by selected persons.

Abstract: Method and apparatus for separating and separately collecting stockings and toe end waste therefrom, incorporated with a toe end closing apparatus for a circular knitting machine where the stocking is gathered in a clamp at the toe end and closed thereat, with a short waste end portion being severed therefrom by the closing operation, and including a movable stop for the clamp actuator to stop clamp opening at a partially open position to retain the entirety of the waste end temporarily while the stocking is conventionally sucked away from the clamp through a conduit to a collection station, after which the stop is moved to allow full opening of the clamp for release of the waste end into the suction current created by an air jet temporarily blowing across the conduit for transporting the entirety of the waste end in fabric form to a separate waste collection station.