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4653544 Weft cancellation mechanism for gripper looms
VI
New patents
manner that odd heald shafts are connected to one set of arms and even heald shafts are connected to the other arms, the even number arms extending in a direction opposite that of the odd numbered arms relative to the axis of rotation of the adjacent balance levers. The shedding mechanism of the invention is suitable for use as a special device for modern high speed looms when weaving plain weave fabrics.
4653544 WEFT CANCELLATION MECHANISM FOR GRIPPER LOOMS Michel Vandeweghe, Frans Vandenabeele, Heuvelland, Belgium assigned to N V Weefautomaten Picanol A weft cancellation mechanism for gripper looms, characterized by consisting primarily of a bar (7) located in a position situated between the feed of the weft (4) and the shed (2) which forms an angle with the weft or wefts (4), this bar (7) being attached to an electromagnet (9) which, once a weft breaks, is activated so as to remove the weft (4) offered up to the gripper from the path of the gripper (6).
4654494 ACTUATING MECHANISM FOR AN ELECTRICAL SWITCH WITH PRESSURE CONTACTS, ESPECIALLY FOR A VACUUM SWITCH Hans-Rudolf Wuthrich, Oberentfelden, Switzerland assigned to Sprecher & Schuh AG A reciprocatingly movable actuating rod is coupled to a longitudinally translatable contact plunger through a linkage and a stationarily arranged S-shaped guideway. A compression spring which is compressible during the course of a switching engagement stroke also acts upon the contact plunger. In order to keep especially the contact plunger as free as possible from transverse forces during the switching stroke and to keep the actuating rod unloaded both in the engaged position and in the disengaged switching stroke position, one end of the actuating rod, which extends perpendicular to the direction of motion of the contact plunger, carries a journal pin engaging the guideway. One end of a
connecting rod included in the linkage is pivotably connected to the journal pin. The other end of the connecting rod is pivotably connected to the contact plunger through an entrainment sleeve. The compression spring, which pivots conjointly with the connecting rod, is supported at one end on the connecting rod and at the other end on a coupling sleeve defining the entrainment sleeve on the contact plunger. The guideway is configured such that it has end regions respectively associated with the engaged and disengaged switching stroke positions and which extend perpendicular to the connecting rod.
4655640 ADVANCING MECHANISM AND SYSTEM UTILIZING SAME FOR RAISING AND LOWERING A WORK PLATFORM Don Gillis assigned to Petroleum Structures Inc A rack (16) extends along a support column (12) for a work platform (10) which is guided for up and down movement along the support column (12). A pair of independently movable supports (32, 34) are provided. A separate extendible/retractable hydraulic cylinder (64,68) is interconnected between each support (32, 34) and a frame portion (30,88,90) of the work platform (10). Each support (32, 34) includes an extendible/retractable lock element (100) having an end portion which when the lock element (100) is extended is in locking engagement with either tooth portions of a pinion wheel (56) carried by the support (32,34), or with the rack (16). In use, the lock element (100) is extended to lock the support in position relative to the support column (12). At the same time, the hydraulic cylinder (64, 68) which is connected to the support (32 or 34) is extended or retracted to raise or lower the work platform ( 10). At the same time, the lock element (100) that is associated with the second support is retracted into an unlock position. The second cylinder (64,68) is moved to a starting point so that at the end of the stroke of the lirst cylinder (64,68) the second lock element (100) can be advanced to lock its support in position on the rack and the second lock element (100) can be retracted to free its support for movement along the rack, and the second cylinder (64,68) can be operated to advance the work platform (10) and the first cylinder (64, 68) can be returned to its start position.
New patents
manner that odd heald shafts are connected to one set of arms and even heald shafts are connected to the other arms, the even number arms extending in a direction opposite that of the odd numbered arms relative to the axis of rotation of the adjacent balance levers. The shedding mechanism of the invention is suitable for use as a special device for modern high speed looms when weaving plain weave fabrics.
4653544 WEFT CANCELLATION MECHANISM FOR GRIPPER LOOMS Michel Vandeweghe, Frans Vandenabeele, Heuvelland, Belgium assigned to N V Weefautomaten Picanol A weft cancellation mechanism for gripper looms, characterized by consisting primarily of a bar (7) located in a position situated between the feed of the weft (4) and the shed (2) which forms an angle with the weft or wefts (4), this bar (7) being attached to an electromagnet (9) which, once a weft breaks, is activated so as to remove the weft (4) offered up to the gripper from the path of the gripper (6).
4654494 ACTUATING MECHANISM FOR AN ELECTRICAL SWITCH WITH PRESSURE CONTACTS, ESPECIALLY FOR A VACUUM SWITCH Hans-Rudolf Wuthrich, Oberentfelden, Switzerland assigned to Sprecher & Schuh AG A reciprocatingly movable actuating rod is coupled to a longitudinally translatable contact plunger through a linkage and a stationarily arranged S-shaped guideway. A compression spring which is compressible during the course of a switching engagement stroke also acts upon the contact plunger. In order to keep especially the contact plunger as free as possible from transverse forces during the switching stroke and to keep the actuating rod unloaded both in the engaged position and in the disengaged switching stroke position, one end of the actuating rod, which extends perpendicular to the direction of motion of the contact plunger, carries a journal pin engaging the guideway. One end of a
connecting rod included in the linkage is pivotably connected to the journal pin. The other end of the connecting rod is pivotably connected to the contact plunger through an entrainment sleeve. The compression spring, which pivots conjointly with the connecting rod, is supported at one end on the connecting rod and at the other end on a coupling sleeve defining the entrainment sleeve on the contact plunger. The guideway is configured such that it has end regions respectively associated with the engaged and disengaged switching stroke positions and which extend perpendicular to the connecting rod.
4655640 ADVANCING MECHANISM AND SYSTEM UTILIZING SAME FOR RAISING AND LOWERING A WORK PLATFORM Don Gillis assigned to Petroleum Structures Inc A rack (16) extends along a support column (12) for a work platform (10) which is guided for up and down movement along the support column (12). A pair of independently movable supports (32, 34) are provided. A separate extendible/retractable hydraulic cylinder (64,68) is interconnected between each support (32, 34) and a frame portion (30,88,90) of the work platform (10). Each support (32, 34) includes an extendible/retractable lock element (100) having an end portion which when the lock element (100) is extended is in locking engagement with either tooth portions of a pinion wheel (56) carried by the support (32,34), or with the rack (16). In use, the lock element (100) is extended to lock the support in position relative to the support column (12). At the same time, the hydraulic cylinder (64, 68) which is connected to the support (32 or 34) is extended or retracted to raise or lower the work platform ( 10). At the same time, the lock element (100) that is associated with the second support is retracted into an unlock position. The second cylinder (64,68) is moved to a starting point so that at the end of the stroke of the lirst cylinder (64,68) the second lock element (100) can be advanced to lock its support in position on the rack and the second lock element (100) can be retracted to free its support for movement along the rack, and the second cylinder (64,68) can be operated to advance the work platform (10) and the first cylinder (64, 68) can be returned to its start position.