Patent US560759A successfully refreshed from Google Patents.
Patent US3790761A successfully refreshed from Google Patents.
US3790761A
Expired / Lapsed
US
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Machine feed and output monitoring apparatus
Assignee: Individual
•
Filing: 1971-09-29
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Granted: 1974-02-05
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Expires: 1991-09-29
Abstract
Abstract An electric pulse generator of photoelectric form emits pulses corresponding to the formation of discrete courses in a knitted fabric by a circular knitting machine. A second electric pulse generator of the same type emits pulses corresponding to units of length of yarn used in the formation of each discrete course. The two sets of pulses are shaped by shaping circuits, forming input signals for logic circuits and a counting circuit. In the logic circuits, the signals corresponding to course formation control input to the counting circuit of the signals corresponding to units of yarn length. In the counting circuit, units of length of yarn are accumulated during the formation of selected courses and visually displayed on a read-out panel. A second counting circuit may be used to accumulate a continuous count of courses in the knitted fabric. A metering unit associated with the second electric pulse generator includes a measuring-wheel-enclosing housing assembly, telescopically assembled and disassembled. The metering unit is mounted as a portable hand unit.
Inventors
- 👤 C Crabtree
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:40
CPC Classifications
D; D04; D04B; D04B35/00; D04B35/10
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
273 words
Apparatus for monitoring the operation of a machine of the type adapted to receive at least one elongated input material fed thereto and having an output controlled by the cycles of operation of the machine, said apparatus comprising: a. first means for determining each cycle of operation of the machine and emitting a pulse in response thereto; b. second means effective when actuated for measuring the length of the input material fed into the machine and for registering a visual read-out of said length, which second means includes means for emitting pulses corresponding to units of length of said elongated input material; and c. control means including: i. a flip-flop having one input and two outputs, said input receiving the pulses emitted from said first means, which pulses cause said flip-flop to change states each time one of said pulses is generated thereto; and ii. a first gate and a second gate, each of said gates having two inputs and one output, said first gate having one input thereof receiving the pulses emitted by said first means with the other input thereof connected to one output of said flipflop, said second gate having one input thereof receiving the pulses emitted by said second means with the other input thereof connected to the other output of said flip-flop, said control means responsive to the pulses emitted by said first means to actuate said second means during one cycle of operation of the machine, deactuate said second means during the next succeeding cycle of operation thereof and reset said second means before a next cycle of operation during which cycle said second means is reactuated.
Claim 2
Dependent Claim
273 words
Apparatus for monitoring the operation of a machine of the type adapted to receive at least one elongated input material fed thereto and having an output controlled by the cycles of operation of the machine, said apparatus comprising: a. first means for determining each cycle of operation of the machine and emitting a pulse in response thereto; b. second means effective when actuated for measuring the length of the input material fed into the machine and for registering a visual read-out of said length, which second means includes means for emitting pulses corresponding to units of length of said elongated input material; and c. control means including: i. a flip-flop having one input and two outputs, said input receiving the pulses emitted from said first means, which pulses cause said flip-flop to change states each time one of said pulses is generated thereto; and ii. a first gate and a second gate, each of said gates having two inputs and one output, said first gate having one input thereof receiving the pulses emitted by said first means with the other input thereof connected to one output of said flipflop, said second gate having one input thereof receiving the pulses emitted by said second means with the other input thereof connected to the other output of said flip-flop, said control means responsive to the pulses emitted by said first means to actuate said second means during one cycle of operation of the machine, deactuate said second means during the next succeeding cycle of operation thereof and reset said second means before a next cycle of operation during which cycle said second means is reactuated.
Claim 3
Dependent Claim
62 words
Apparatus as claimed in claim 1, wherein: the first means includes a sensing yoke, the sensing yoke includes a light source and a photosensitive device positioned to receive light emitted from the light source, the first means further includes an interrupting means adapted to interrupt the light received by the photosensitive device at intervals corresponding to cycles of operation of the machine.
Claim 4
Dependent Claim
34 words
Apparatus as claimed in claim 2, wherein: the interrupting means is an opaque body mounted on a rotating element of the machine with the sensing yoke mounted on a stationary portion of the machine.
Claim 5
Dependent Claim
56 words
Apparatus as claimed in claim 1, wherein; the second means includes: a metering unit emitting pulses corresponding to units of length of the elongated input material fed into the machine; and a pulse accumulator and read-out to accumulate the pulses emitted by the metering unit and register a visual read-out of the units of length measured.
Claim 6
Dependent Claim
82 words
Apparatus as claimed in claim 4, wherein; the metering unit includes: a light source; a photosensitive device spaced apart from the light source and positioned to receive light therefrom; and a measuring wheel of known circumference rotatably mounted between the light source and the photosensitive device and in measuring contact with the elongated input material, the wheel having an opening therein to permit light emitted from the light source to be received intermittently by the photosensitive device during rotation of the wheel.
Claim 7
Dependent Claim
62 words
Apparatus as claimed in claim 5, wherein; the pulse accumulator and read-out includes: a decade counter to receive and accumulate the pulses from the metering unit; a decade decode-driver energized by the decade counter; and an electrically activated numerical display to register the visual read-out of the units of length measured by advancing one unit responsive to pulses from the decade decode-driver.
Claim 8
Dependent Claim
51 words
Apparatus as claimed in claim 4, including: an elongated housing providing an enclosure for the pulse accumulator and read-out and having the metering unit operatively mounted at one end thereof to form a hand unit adapted for manual positioning of the metering unit in measuring contact with the elongated input material.
Claim 9
Dependent Claim
22 words
Apparatus as claimed in claim 15, including: a counter connected to the first means to record cycles of rotation of the machine.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-02-04 | 1977-08-06 | 1978-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-04 | 1981-08-06 | 1982-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-04 | 1985-08-06 | 1986-02-05 | $7700.00 | Window Closed / Lapsed |