Patents by Inventor Francisco Speich
Francisco Speich has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 5816294Abstract: Each of the heddles of a shaft device for a weaving machine has a thread eyelet and end eyelets arranged on both sides of the thread eyelet, so that the heddles can be arranged in rows on heddle slide bars. At least the driving heddle slide bar has at least one thin leg that projects transversely to the plane formed by the heddle slide bar and engages a driving groove of the corresponding end eyelet of the heddle with limited play. In spite of the limited play, the heddles can be spread to a sufficient extent on the heddle slide bars. This limited play allows a better driving performance, with reduced noise level and wear, in comparison with known shaft devices.Type: GrantFiled: June 20, 1997Date of Patent: October 6, 1998Assignee: Textilma AGInventor: Francisco Speich
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Patent number: 5806570Abstract: A gripper weaving machine has at least one gripper which is arranged at weft band and guided so as to reciprocate in a shed. The weft band is guided in the shed on both sides in guide recesses of guide pins at a distance from the warp threads. Each of the guide recesses of the guide pins adjacent a weaving reed has a lower guide surface which ends at least parallel to the plane of the weft band and an upper guide surface opening toward the weft band at an angle relative to the plane of the weft band. The edge of the weft band engaging in the guide recesses has a cross section adapted to the shape of the guide recesses. The angle of the upper surface of the guide pins adjacent to the weaving reed is dimensioned such that the upper guide surface, when exiting from the lower shed and intersecting the warp threads, forms an angle with the warp threads which is greater than or equal to 5 degrees. In addition, the weft band has a protruding portion on the underside and between the edges of the weft band.Type: GrantFiled: February 14, 1997Date of Patent: September 15, 1998Assignee: Textilma AGInventor: Francisco Speich
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Patent number: 5632187Abstract: The fabric run (4) has a hollow marker profile (12) arranged along a cutting line (10). A cutting device (16) is equipped with a sensing tongue (14) which engages in the hollow marker profile (12), and which guides a cutting tool (18) along the marker profile (12) and hence along the cutting line (10). Exact, dimensionally accurate cutting of a fabric run is thereby possible.Type: GrantFiled: May 7, 1996Date of Patent: May 27, 1997Assignee: Textilma AGInventor: Francisco Speich
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Patent number: 5601671Abstract: A process and an apparatus for the manufacture of narrow fabrics include manufacturing a wide fabric run with hollow fabric areas extending along predefined cutting lines, wherein each hollow fabric area is manufactured by providing a front fabric portion and a rear fabric portion, and wherein the edges of the front and rear fabric portions are connected to each other to form a hollow space. The fabric run is cut along the cutting lines such that the front and rear fabric portions are not connected to one another.Type: GrantFiled: January 28, 1994Date of Patent: February 11, 1997Assignee: Textilma AGInventor: Francisco Speich
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Patent number: 5544500Abstract: Guide bars (24, 32, 34) with thread guides (26, 36, 38) are arranged above the knitting needles (4). At least one group (G1 to G7) of at least two guide bars (36, 38) which are arranged one above the other is provided to increase the number of possible guide bars and/or to improve the accessibility of the guide bar region. This arrangement is effected in such a way that the thread guides of the guide bars (32, 34) arranged one above the other do not intersect.Type: GrantFiled: December 5, 1994Date of Patent: August 13, 1996Assignee: Textilma AGInventor: Francisco Speich
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Patent number: 5513676Abstract: A shedding device for weaving machines including lifting knives arranged on both ends of respective knife units for joint displacement with the knife units up and down in respective mutually opposite direction, with each knife unit being connected to the device frame by a separate lever provided on one side of the knife unit and by a lever arrangement provided on another side of the knife unit, which lever arrangement has a lever and a guide rod that connects this lever with the frame or the knife unit.Type: GrantFiled: December 12, 1994Date of Patent: May 7, 1996Assignee: Tetilma AGInventor: Francisco Speich
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Patent number: 5452633Abstract: A process for the thermal cutting of a running, meltable fabric run includes cutting the fabric run by a hot cutting wire. The cutting wire extends in a plane extending essentially perpendicularly to the travel direction of the fabric run. The cutting wire is inclined relative to the fabric run by an angle of greater than 0.degree. and smaller than 90.degree..Type: GrantFiled: January 28, 1994Date of Patent: September 26, 1995Inventor: Francisco Speich
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Patent number: 5386853Abstract: A gripper loom with pneumatic gripper cleaning apparatus is outfitted with at least one gripper associated with a blowing nozzle outside of the weaving area. The blowing nozzle is associated with a suction nozzle on the opposite side of the gripper. The gripper is constructed in such a way that it allows air to pass from the blowing nozzle to the suction nozzle. This enables an intensive and complete cleaning of the gripper and prevents soiling of other structural component parts.Type: GrantFiled: October 23, 1992Date of Patent: February 7, 1995Assignee: Textilma AGInventor: Francisco Speich
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Patent number: 5373871Abstract: A shedding device for a textile machine contains two lifting blades (120) which move to and fro antagonistically, two traction elements (121) which can be engaged and disengaged with the lifting blades (120) and an insertion device (12) which is arranged so that the traction elements adopt a defined position with respect to the pole regions when in the lower shed position. The traction elements (121) have coupling parts (123) with hooks (126) which can be coupled with matching lifting blade parts, and stop parts (54) which co-operate with the stop board (46) for the rest position and with the lower edge of the lifting blade (120) so that they move to and fro interlocked with the traction elements (121) coupled with the blades (120).Type: GrantFiled: November 5, 1992Date of Patent: December 20, 1994Assignee: Textilma AGInventor: Francisco Speich
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Patent number: 5327750Abstract: A control arrangement for the shifting movement of at least one guide bar (4) contains a pick-off gear (10) against which the guide bar is pretensioned. The pick-off gear (10) has a plurality of thrust elements (8, 8.sub.1, 8.sub.2, 8.sub.3) connected one behind the other, between which displacement elements (12.sub.1, 12.sub.2, 12.sub.3, 12.sub.4) are arranged, the thrust elements (8, 8.sub.1, 8.sub.2, 8.sub.3) being supported on the radial cams (34) of the displacement elements (12.sub.1, 12.sub.2, 12.sub.3, 12.sub.4). The displacement elements (12.sub.1, 12.sub.2, 12.sub.3, 12.sub.4) are connected via coupling members (16) to a pattern controlled adjusting device (18) and can be adjusted between a basic position and a switched position. In order to improve the warp knitting machine, the adjusting device (18) is constructed as a negative dobby or Jacquard machine operating by the double-lift method and the displacement elements are pretensioned in one position.Type: GrantFiled: September 22, 1992Date of Patent: July 12, 1994Assignee: Textilma AGInventor: Francisco Speich
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Patent number: 5309952Abstract: A shedding device as provided for textile machines which includes oppositely movable lifting blades (41) and pulling elements (42) which are reciprocally movable between a lower shed position and an upper shed position and which are interconnected in pairs by a connecting member (1). The connecting member (1) is connected through a pulley block (2) to a heddle (7) and a retention device (12) is located at a lower shed position and between the pulling elements (42) to control the latter in accordance with the particular pattern program. The insertion device (12) has a wedge-shaped base (17) including a base edge (17a) directed toward the harness string (6). Magnetic pull areas (23, 24) are formed at inclined surfaces (20, 21) of the wedge-shape base (17) and through an associated air gap (A) progressive movement of the coupling portion (46) of each pulling element (42) is effected upon magnet energization or coupling/uncoupling operations at low forces and under relatively quiet operation.Type: GrantFiled: November 5, 1992Date of Patent: May 10, 1994Assignee: Textilma AGInventor: Francisco Speich
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Patent number: 5115839Abstract: A weaving machine includes a guide device for a woven material web. The guide device is arranged downstream of a filling thread set-up edge. The weaving machine further includes a ribbon cutting device for cutting the woven material web into ribbons and for melting on the cut edges. The cutting device is arranged between the guide device and a breast beam. The weaving machine also includes a thermal fixing device mounted independently of the cutting device. The guide device and the cutting device are arranged independently of one another and the fixing device is arranged on a take-up roller arranged downstream of the breast beam and/or on a guide roller immediately following the take-up roller.Type: GrantFiled: May 15, 1989Date of Patent: May 26, 1992Assignee: Textilma AGInventor: Francisco Speich
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Patent number: 5097873Abstract: A gripper loom with at least one filling thread insertion device, including a perforated flexible insertion band, which carries a gripper head at one end and which is advanced into and again retracted from a shed by an alternatingly driven drive wheel. The drive wheel has teeth distributed across the circumference which engage into perforations of the insertion band. Furthermore, a guide member is assigned to the drive wheel near the gripper head so as to prevent the insertion band from lifting off the circumference of the drive wheel, and an end of the band facing away from the gripper head is fastened at a rotary guidance apparatus arranged with respect to the drive wheel so that the band end describes an at least approximate circular guide path during an entire reciprocating motion, the radius of the path being larger than the radius of the drive wheel.Type: GrantFiled: September 14, 1990Date of Patent: March 24, 1992Assignee: Textilma AGInventors: Jakob Muller, Francisco Speich, Erich Buhler
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Patent number: 5052447Abstract: A guide device for a web of material at a point of a textile machine, preferably a weaving machine, at which the web of material is produced. The guide device includes a first guide strip with a guide edge which first guide strip is arranged subsequent to the point at which the web of material is produced and a second guide strip with a guide edge which second guide strip is arranged subsequent to the first guide strip. The guide strips extend in each instance along the entire width of the web of material and overlap one another in such a way the web of material is guided at least approximately in an F-shaped manner. The guide edge of the second guide strip is formed by a rotatable round bar. The rotatable round bar is arranged in a loose manner in such a way that is is supported, under the influence of the tensile stress of the web of material, along the web of material at the first guide edge and in direct contact at the end face of a guide element of the second guide strips.Type: GrantFiled: November 17, 1989Date of Patent: October 1, 1991Assignee: Textilma AGInventor: Francisco Speich
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Patent number: 4949762Abstract: A gripper loom comprises a filing thread insertion device with a gripper (2), which contains a clamp or clip (16) for a filling thread (8) that is releasable by an opener. An adjustment apparatus (28) is provided for setting up the spacing (X) of the open position of the clip or clamp at the filling thread pullout side of the shed (6) or the selvage (43). The adjustment apparatus (28) is actuatable during the operation of the gripper loom. For this purpose, the adjustment apparatus contains, for instance, a pivotable control strip (32) which cooperates with a stop cam (26) of the clip or clamp.Type: GrantFiled: October 3, 1988Date of Patent: August 21, 1990Assignee: Textilma AGInventors: Francisco Speich, Erich Buehler
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Patent number: 4918947Abstract: A weft knitting machine for producing a warp knit fabric includes knitting needles guided so as to reciprocate transversely of a knockover bit. Warp thread guides are provided for the needles and at least one reciprocating filling thread guide transverse to the needles. The knitting needles are distributed onto knitting-needle bars which are located on the same side of the fabric and are arranged alternately to one another and are capable of being driven out of phase. Each knitting-needle bar is assigned a set of warp thread guides.Type: GrantFiled: May 12, 1988Date of Patent: April 24, 1990Assignee: Textilma AGInventor: Francisco Speich
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Patent number: 4913195Abstract: A filling thread feeding device (2) comprises a thread guide (4) for placing at least one filling thread (S.sub.1) into the entrainment region of a gripper (6) which can be extended into and retracted out of a shed (8). A pair of scissors (22) open against a weaving reed (14) is incorporated at the insertion side externally of the fabric edge (20) in the region of a looping edge (16). The scissors serve for cutting off a previously inserted filling thread (S.sub.1, S.sub.2, S.sub.3, S.sub.4) during renewed insertion into the shed (8). The scissors (22) are designed and arranged in order to improve the operational security and achieve a simpler construction of the gripper loom. The scissors are, on the one hand, closed during the looping motion of the weaving reed and, on the other hand, an inserted filling thread (S.sub.1) can be conducted above and past the upper scissor blade (24) into a catching hook (32) lying in front (FIG. 2 ).Type: GrantFiled: October 5, 1988Date of Patent: April 3, 1990Assignee: Textilma AGInventor: Francisco Speich
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Patent number: 4895006Abstract: A crocheting machine has slide needles (2) with knitting needles (4) which are disposed on a knitting needle bar (6). Slides (8) of the slide needles (2) are attached at a slide bar (10) which is disposed over the knitting needle bar (6). Thus, a simple and rugged construction for the crocheting machine is obtained.Type: GrantFiled: July 28, 1988Date of Patent: January 23, 1990Assignee: Textilma AGInventor: Francisco Speich
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Patent number: 4724872Abstract: A method of controlling a weaving machine which includes a shedding device with yarn guiding eyelets, an electronic control device for the shedding device, a warp let-off device and a fabric take-off device, the electronic control device having a program memory providing a weaving program with weaving program steps and an auxiliary program, comprises stopping the weaving machine in a shed by means of a stop signal, switching by means of the auxiliary program to inverse weaving the shedding device and the weaving program step of the shed in which the weaving machine has stopped, returning by means of the auxiliary program the weaving machine to the next preceding shedding crossing point, stopping by means of the auxiliary program the weaving machine in this next preceding shedding crossing point so that the yarn-guiding eyelets are placed in a middle position, switching by means of the auxiliary program the weaving machine from inverse weaving to normal weaving according to the weaving program, and restartingType: GrantFiled: September 16, 1986Date of Patent: February 16, 1988Assignee: Textilma AGInventor: Francisco Speich
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Patent number: 4669510Abstract: A weaving machine having a filling breakage detector for generating an error signal upon breakage of a filling thread. This error signal then stops the weaving machine. A pick finding process is then initiated in which the weaving program is set back and then blocked. After removal of any filling thread in the open shed, the weaving machine is operated until the preceding shed is opened enabling the removal of the filling thread. If this is the ruptured filling thread, it is replaced by a new filling thread, the weaving program is unblocked and the weaving machine is operated in its normal sequence. If the filling thread is not ruptured once or if another ruptured filling thread is detected in a preceding shed, the pick finding process is repeated. The cloth takeoff and the warp letoff are also set back correspondingly with the weaving program.Type: GrantFiled: May 23, 1985Date of Patent: June 2, 1987Assignee: Textilma AGInventor: Francisco Speich