摘要:
A mending gun for mending tufted fabric which incorporates a control circuit to count the number of actual mends made but prevents counting of mends of a short duration and ignores mends made more often than a selected adjustable time.
摘要:
A random signal generator using a maximum-length shift register sequence to provide control pulses to a slub yarn producing open end spinning system. The time between control pulses is random to prevent any discernible pattern appearing in the fabric made from the yarn.
摘要:
A rotating magnetic sensor which detects a ferrous line on a web of material and compares it with a reference registration line to either speed up or slow down the speed of the section of web material on which the ferrous line is located. The sensor employs a pole-piece, a coil, a permanent magnet and two signal wires.
摘要:
A method and apparatus for use in a tufting operation to advance variable yarn lengths toward the needles of a tufting machine for the formation of tufted pile loops having lengths varied in accordance with a predetermined pattern.
摘要:
Method and apparatus for establishing and maintaining pattern registration control in a printing system which prints an image on a relatively moving substrate. Portions of the overall image are electronically generated and printed in row-by-row (e.g. scanned) fashion at respective print stations positioned along the path of the substrate. Registration control is achieved with the aid of index markings spaced along the length of the substrate.
摘要:
A random signal generator using a maximum-length shift register sequence to provide control pulses to a slub yarn producing open end spinning system. The time between control pulses is random to prevent any discernible pattern appearing in the fabric made from the yarn.
摘要:
A circuit for use with a control system in which interleaved pairs of records and parity characters following each interleaved pair of records are recorded on magnetic tape, with each of the interleaved pairs of records having at its ends a stop-command-forward character and a stop-command-reverse character, the circuit comprising gate means for passing read data from a magnetic tape reader to a utilization device, means for identifying the stop-command-reverse character and the stop-command-forward character, and a flip-flop for disabling the gate means in response to identification of one of the stop-command-characters at the end of a record and for enabling the gate means in response to identification of a different stop-command character at the beginning of a next record.