Abstract: A direct reading ohmmeter for neutralizing the effects of foreign voltages is disclosed including alternately connected stages for registering the Thevenin Equivalent open circuit voltage across test probes as well as a voltage whose value is a function of the resistance to be measured, and circuitry monitoring these stages for determining the value of the unknown resistance by a continuous subtraction of the stored voltages.
Type:
Grant
Filed:
July 28, 1976
Date of Patent:
September 6, 1977
Assignee:
Bell Telephone Laboratories, Incorporated
Abstract: There is disclosed a scissor-type screw actuated jack arrangement having a floating load bearing plate centrally situated over supporting lift arms when in the fully extended position and a pair of facing U-shaped channel members coupled to opposite ends of the lift arms for carrying the bearing plate and screw.
Abstract: There is disclosed a gardening tool for extracting weeds from a lawn and adapted to be used while standing erect including an elongated extendible cane shaped member on the base of which is affixed perpendicularly a lateral support running parallel to the ground and a pivotally mounted food operated pedal bar having an integrated soil cutter.
Abstract: Disclosed is a method particularly suited to lampworking for producing unique surface effects on glass. In addition interlocking glass sections formed from bundles of rods preassembled on a cyclindrical core are disclosed.
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