Abstract: A device and method for dispensing and measuring a plurality of strands from a single spool of stranded material is disclosed. The device is comprised of a mobile portion on which a plurality of pulleys is mounted. The mobile portion includes a frame mounted on an axle to which tires are attached so that the mobile portion may be wheeled about readily. A stationary portion includes a plurality of pulleys and a supply spool of wire. Stranded material from the supply spool is routed back and forth between the mobile portion and the stationary portion, over the pulleys attached to each, until the number of strands between the mobile portion and the stationary portion corresponds with the desired number. Next the mobile portion is displaced away from the stationary portion a distance equal to the length of strands desired. A distance measurement device is mounted on the mobile portion to aid the user in ascertaining the distance that the mobile portion has moved, thereby indicating the wire length.

Abstract: A device and method for dispensing and measuring a plurality of strands from a single spool of stranded material is disclosed. The device is comprised of a mobile portion on which a plurality of pulleys is mounted. The mobile portion includes a frame mounted on an axle to which tires are attached so that the mobile portion may be wheeled about readily. A stationary portion includes a plurality of pulleys and a supply spool of wire. Stranded material from the supply spool is routed back and forth between the mobile portion and the stationary portion, over the pulleys attached to each, until the number of strands between the mobile portion and the stationary portion corresponds with the desired number. Next the mobile portion is displaced away from the stationary portion a distance equal to the length of strands desired. A distance measurement device is mounted on the mobile portion to aid the user in ascertaining the distance that the mobile portion has moved, thereby indicating the wire length.

Abstract: A short range, low power, radio wave transmitter which acts as a miner locator. The transmitter is incorporated with the cap lamp circuitry for the miner. It utilizes the same self-contained power source and its wire connection thereto acts as the transmitter's antenna. No action on the miner's part is necessary in order to begin the transmission which may be on a specific identifying frequency for each miner. An electronic crowbar circuit may be used to conserve power for the transmitter by cutting off power to the cap lamp should the voltage across the self-contained power source fall below a preset level. This enables the transmitter to function for several days by reducing the load on the power source.

Abstract: A professional mounting stand comprising an upstanding tubular support member having its lower end adapted to be secured to a supporting surface. A second tubular member is selectively slideably received by the first tubular member and is selectively rotatably mounted therein about a vertical axis. A normally horizontally disposed collar is pivotally secured to the upper end of the second tubular member and has a face plate selectively rotatably mounted therein about a horizontal axis. In one embodiment, a U-shaped support is secured to the face plate and has a pair of clamping members rotatably and laterally adjustably secured to the outer leg portions thereof. In a third embodiment, the horizontally disposed collar and face plate are secured to the upper end of a short length of pipe which is secured to a supporting surface.

Abstract: Apparatus is disclosed for use with typewriters of the type having trip hammers and is adapted to receive combinations of electrical signals which uniquely define the respective characteristics and to decode the electrical signals to selectively activate the trip hammers of the typewriter. The apparatus has a number of coded plates located adjacent one another in general alignment, with each of the plates having a number of transverse slots at one edge thereof at predetermined positions. Lateral or longitudinal movement of the elongated plates between first and second positions in response to receiving appropriate electrical signals causes the slots to be either into or out of alignment with an activating member which effects triggering of the trip hammer of the typewriter. Any one of the coded plates having a slot in a nonaligned orientation will prevent activation of the particular hammer.

Abstract: Apparatus is disclosed for attachment to a standard typewriter for selectively actuating one or more of a plurality of magnetically actuated switches to provide unique electrical signals that can be recorded or otherwise used to transmit information. The information electrical signals are produced in response to actuation of the typewriter key and an opto-electronic switching circuit is utilized to prohibit the generation of the electrical signals unless and until a type head strikes the platen. Reed switches and actuating levers are provided for each of the unique keys of the typewriter so that signals identifying the corresponding character or function can be produced.

Abstract: Apparatus for attachment to a standard typewriter for selectively actuating one or more of a plurality of magnetically actuated switches in electrical circuits that are connected to recording means through an electrical matrix circuit. A switch and actuating lever are provided for each of the unique keys of the typewriter so that signals identifying the corresponding character or function can be produced. The apparatus is compact and can be easily installed beneath the keyboard under the typewrter. Pivotable actuating levers having magnets thereon move into close proximity to the magnetically actuated switches in response to striking of the typewriter keys. The apparatus also includes magnetic shielding for preventing a lever from actuating more than one switch, even though the switches can be in extremely close proximity to one another.