Did You Know...
...that Thomas Edison's patent application on his phonograph was approved by the Patent Office in just seven weeks? In contrast, it took Gordon Gould, the inventor of the laser, 30 years to obtain his patent -- finally awarded in 1988!
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| Number | Title | Issue Date |
| 6691534 | Light-scanning head for knitting-machine needles, a corresponding light-scanning system and method for checking knitting-machine needles, using said light-scanning system A light scanning system for needles in knitting machines, more particularly circular knitting machines, with a control unit, which comprises at least a light source and an evaluating unit with a receiver, at least a first (22, 42) and a second (24, 44) li... | 02/17/2004 |
| 6318132 | Apparatus and method for detecting broken hooks of needles in a knitting machine, and needles for use with same An apparatus for detecting broken hooks of needles in a knitting machine having first and second cam faces defining a cam for slidably receiving needle butts. The cam includes a raising cam portion, a stitch cam portion, and a welt cam portion in which te... | 11/20/2001 |
| 6219136 | Digital signal processor knitting scanner A digital signal processor system is provided which detects defect in tubular knit fabric. The signal processor system is attached to a circular knitting machine or the like and utilizes a fiber optic scanning head for obtaining light reflectance data fro... | 04/17/2001 |
| 6038890 | Circular knitting machine shut-down positioning and needle/feeder position control method In a circular knitting machine shut-down positioning and needle/feeder position control method, two signals of 90° phase difference are obtained from an encoder and then processed through a pulse generator for controlling the positioning of the forward/r... | 03/21/2000 |
| 6035669 | Apparatus and method for detecting broken hooks of needles in a knitting machine Apparatus for detecting broken hooks of needles in a knitting machine having first and second cam faces defining a cam for slidably receiving needle butts. The cam includes a raising cam portion, a stitch cam portion, and a gate cam portion in which tensi... | 03/14/2000 |
| 5524460 | Device for continously monitoring the needles of a knitting machine during operation thereof The needles of a knitting machine are continuously monitored, during operation of the machine, by an optical head having a light source and an electro-optical receiver which receives the light beam from the light source after the beam has crossed the area... | 06/11/1996 |
| 5284030 | Flat knitting machine stop motion assembly In a flat knitting machine equipped with a manually movable handlebar (11) which is oriented parallel to a needle bed, the eccentrically mounted handlebar (11) is connected to a pivoting lever (15) which is the carrier of an armature (19) for a stationari... | 02/08/1994 |
| 5207763 | Monitoring system for knitting machines A monitoring system for knitting machines, in particular for such machines for the knitting of hosiery or socks, having a number of yearn guards allocated to each yarn for infeed into the machine, the guards each being operative, in response to a movement... | 05/04/1993 |
| 5202610 | Method and apparatus for yarn end-down detection in a textile yarn winding machine Method and apparatus for detecting breakage in a yarn strand being wound onto a yarn support member rotatably driven by a DC motor and having a closed-loop motor control system for maintaining a desired velocity of the motor and for signaling commutation ... | 04/13/1993 |
| 4890464 | Positive feeding device for circular knitting machine Vertically stacked drive wheels (171, 172, 173 and 174) are provided above a yarn feed wheel (21) which is provided with a first yarn feed surface (27) providing comparatively high friction with the yarn engaged... | 01/02/1990 |
| 4790153 | Safety device for flat-bed knitting machines In a safety device, in particular for flat-bed knitting machines, with which, by means of a shutoff device, stoppage of the carriages associated with a drive apparatus of the machines in the event of a change in the power of the carriages as compared with... | 12/13/1988 |
| 4790151 | Yarn stop motion for textile machines A front yarn guide element (11) of the yarn stop motion (10) has the shape of a yarn guide eye (12) formed by a wire spiral into which a yarn can be introduced from the side and deflected to all sides without danger of slipping out. The yarn guide eye (12... | 12/13/1988 |
| 4765155 | Circular knitting machine with cloth take up safety gate The safety gate extends between and normally encloses the entire space between adjacent legs of a circular knitting machine to prevent the operator from being injured by a knit fabric take up roll mechanism which rotates beneath the needle cylinder and ex... | 08/23/1988 |
| 4730466 | Device for supporting cops in circular knitting machines, particularly in fixed needle cylinder knitting machines This device for supporting cops in circular knitting machines, particularly in fixed needle cylinder knitting machines, comprises a plurality of frames which are arranged close together around the machine axis and carry the machine feed cops. Each frame i... | 03/15/1988 |
| 4710646 | Thread movement sensor The invention relates to a thread movement sensor comprising an arm with at least one thread guide. The invention solves the problem of sensitivity of the sensor to the vibrations of the machine by making a part of the arm an element of a magnetic circuit... | 12/01/1987 |
| 4565076 | Safety device for circular knitting machines A single safety device to automatically stop a conventional circular knitting machine in the event of failure of the belt used to drive a pair of fabric advancing rollers of the machine while the fabric is being knit, and/or to stop the machine in the eve... | 01/21/1986 |
| 4546802 | Automatic failure sensor for hot wire cutters In order to prevent a loom from continuing to operate after burnout of hot wire cutters for cutting selvage, circuitry is provided to automatically stop operation of the loom upon hot wire cutter burnout. The circuitry preferably includes a conventional l... | 10/15/1985 |
| 4505135 | Safety device for a knitting machine A safety device is provided for a knitting machine to ensure that the carriage stops in the case of sudden variation of the speed as a result of an impact or other occurrence such as tangling of the yarn into a ball. The device includes a metal strip form... | 03/19/1985 |
| 4413483 | Control mechanism for circular knitting machine The invention provides a circular knitting machine having a control mechanism with a rackable cam drum. A rackable timing drum carrying control elements for the speed of progress of the timing drum and activation of the cam drum racking, and a quick re-ze... | 11/08/1983 |
| 4387579 | Brake for a warp knitting machine A warp knitting machine has a main shaft driven by an electric motor which is powered by a main circuit. The machine has at least one supplemental, electrically driven arrangement for influencing the thread takeoff of the machine. This electrically driven... | 06/14/1983 |
| 4385508 | Guard for the zone of movement of the carriage of a flatbed knitting machine The zone of movement of the reciprocating carriage of a flatbed knitting machine is guarded, to prevent injury to the operator, by a light barrier set up between each end of the machine and the carriage. Only the barrier on that side of the carriage towar... | 05/31/1983 |
| 4366681 | Detection of flaws, breakages, discontinuities and the like A detector device is provided, in particular for detecting faulty needles or closed needle latches in a knitting machine with latch type needles, consisting of a non-electrically-conductive feeler which is normally resiliently urged into contact with the ... | 01/04/1983 |
| 4353228 | Circular knitting machine with latch detector The knitting machine is provided with latch detector means including primary and secondary sensor means for detecting a latch improperly positioned in a closed position and for signaling when such a condition occurs. A trigger lever (30) having a free inn... | 10/12/1982 |
| 4282725 | Circular knitting machine with latch detector The knitting machine is provided with latch detector means for detecting a latch improperly positioned in a closed position and for signaling when such a condition occurs. A trigger lever (30) having a free inner end (31) is normally positioned in an oper... | 08/11/1981 |
| 4270369 | Device for detecting broken heads of knitting machine needles Device for a knitting machine operative to detect knitting needles having broken heads and to actuate a stop motion to shut down the machine. The device includes a needle sensing unit connected electrically to the stop motion and having a retractable sens... | 06/02/1981 |
| 4236390 | Knitting machine Apparatus for controlling the material tension in a knitting machine, particularly a circular knitting machine, by employing a permanent magnet-excited d.c. motor and an associated circuit to drive a motor torque-dependent material take-off mechanism thro... | 12/02/1980 |
| 4178969 | System and method for controlling the stopping operations of weaving machines A system for controlling the stopping sequence of a plurality of weaving machines under emergency conditions and a method for the same are disclosed. The system includes a preference control circuit which upon receipt of high and low priority emergency si... | 12/18/1979 |
| 4156357 | Carriage releasing mechanism for a flat bed knitting machine A driving connection between a motor driven belt and the carriage of a knitting machine is provided with disengageable parts which separate when the carriage jams and thereby disconnect the carriage from the belt.... | 05/29/1979 |
| 4112712 | Rocking jack safety device A circular knitting machine has rocking selector jacks, selected ones of which are raised in a raising zone by means of a raising cam. A cam is provided in correspondence of the raising zone with a lower profile extending parallel to the intended trajecto... | 09/12/1978 |
| 4079600 | Method and apparatus for doffing fabric rolls from a circular knitting machine Method and apparatus for doffing fabric rolls formed on a winding shaft from a circular knitting machine. When the knitting machine is stopped after a predetermined length of knitted fabric is wound on a winding shaft, the angular position of the winding ... | 03/21/1978 |
| 4064711 | Safety stopping device for knitting machine A hood movable in the direction in which pinching of the operator's hand would occur extends across the stationary part and between the stationary part and the movable part of a straight knitting machine such that a machine stopping mechanism can be trigg... | 12/27/1977 |
| 4064710 | Safety device for knitting machine A hood which is mounted to and shields a slide which in turn is longitudinally movable on a straight knitting machine, has contact devices for triggering a stopping mechanism for the knitting machine slide on the end faces of the hood as viewed in the dir... | 12/27/1977 |
| 4059740 | Switch and operating mechanism for circular hosiery knitting machine speed control A mercury switch which operates the speed control of a circular hosiery knitting machine is positioned within an elongated chamber of a switch housing. The switch housing, in turn, is pivotally mounted to the frame of a knitting machine at such a position... | 11/22/1977 |
| 4033149 | Latch closer in combination with a closed latch detector A device to stop a knitting machine when a needle hook has broken. The device consists of a directed blast of air at the needles of a knitting machine as the needles pass the point on the machine where an existing electronic detector device stops the mach... | 07/05/1977 |
| 4027982 | Needle detector for circular knitting machines Improvement in apparatus used for the continuous inspection of the moving circle of needles of a circular knitting machine to detect faulty needles which comprises a first group of optical glass fibers to guide light from a light source to the needles and... | 06/07/1977 |
| 4026128 | Faulty needle sensing Apparatus for sensing faulty knitting needles includes two needle sensors that are supported in predetermined relation for concurrently sensing different portions of the same needle. An indicator produces an output indicating that a sensed needle is defec... | 05/31/1977 |
| 4020655 | Device for detecting defects in needles on a knitting loom which is in operation A device is disclosed for detecting defects in needles on a knitting loom which is operating. The device comprises at least one Hall probe magnetic detector the active surface of which has a width less than the thickness of the needles to be detected. The... | 05/03/1977 |
| 3995450 | Knitting machine performance regulating system A knitting machine is disclosed in which measurements are made reflecting the output characteristics such as the forces incident to the operation of the knitting needles relatively to operating cam means therefor, and a system is provided for influencing ... | 12/07/1976 |
| 3987649 | Damaged needle detector with single needle sensor A detection and control apparatus for a textile machine having a coil through the field of which the machine needles pass individually and a pair of coupled oscillators operating in frequency step with the phase change due to a broken or damaged needle pa... | 10/26/1976 |
| 3967656 | Method of and device for controlling a weaving loom Herein disclosed is a method of and a device for controlling a weft inserting motion of an automatic weaving loom so that the loom is brought to a stop in the event a weft yarn has failed to be properly picked into a shed of warp yarns a predetermined num... | 07/06/1976 |
