The present disclosure provides: a biodegradable nonwoven fabric for thermoforming, the biodegradable nonwoven fabric being composed of a fiber of a polylactic acid-based polymer, and having a basis weight of 20-300 g/m.sup.2, preferably, a biodegradable nonwoven fabric characterized by being composed of a long fiber of a polylactic acid polymer, having an MD-direction elongation of 50% or more at 120° C., and having an MD-direction dimensional change rate of ±4% or less at 80-140° C. as determined by thermomechanical analysis; a method for producing a molded body by using said biodegradable nonwoven fabric; and a method for molding a biodegradable beverage extraction container, the method being characterized in that the molded body has an MD-direction elongation change rate of 4% or less, as determined by thermomechanical analysis (TMA) under a load of 0.05 N/2 mm at 30-100° C.

One embodiment can provide an apparatus. The apparatus can include a robotic arm, a pair of jaws coupled to the robotic arm configured to grip a fabric piece at a pair of predetermined locations, a force sensor coupled to the jaws and configured to measure a tension force applied to the fabric piece by the jaws, and a control module configured to control movements of at least one jaw based on the measured tension force, thereby allowing the fabric piece to be stretched.

One embodiment can provide an apparatus. The apparatus can include a robotic arm, a pair of jaws coupled to the robotic arm configured to grip a fabric piece at a pair of predetermined locations, a force sensor coupled to the jaws and configured to measure a tension force applied to the fabric piece by the jaws, and a control module configured to control movements of at least one jaw based on the measured tension force, thereby allowing the fabric piece to be stretched.

A yarn blocking and storage device is provided. The device includes an upper platform having a first plurality of apertures therethrough and a lower platform having a second plurality of apertures therein. A plurality of support spacers is securable between the upper and lower platforms to maintain the upper and lower platforms in a spaced configuration. A plurality of blocking staves is removably securable through the first plurality of apertures and within the second pluralities of apertures, wherein the plurality of blocking staves can be selectively positioned along the upper and lower platforms to support a motif thereon.

The invention relates to a method and a heating device (1c) for inductively heating a stator (2) or armature (3) of an electric machine, in particular before and during trickle impregnation thereof. In addition, the invention relates to an impregnating device (50) in which this heating device (1c) is integrated. According to the invention, it is provided that the heating takes place inductively by electromagnetic fields of different frequencies. For this purpose, it is provided in the case of the heating device (1c) that it has at least one electromagnetic inductor (18, 21, 24) which is disposed coaxially or axially parallel with respect to the longitudinal axis (7) of the stator (2) or armature (3) and which inductively heats said stator or armature, and that the at least one inductor (18, 21, 24) is designed to generate at least two electromagnetic fields of different frequencies.

One embodiment can provide an apparatus. The apparatus can include a robotic arm, a pair of jaws coupled to the robotic arm configured to grip a fabric piece at a pair of predetermined locations, a force sensor coupled to the jaws and configured to measure a tension force applied to the fabric piece by the jaws, and a control module configured to control movements of at least one jaw based on the measured tension force, thereby allowing the fabric piece to be stretched.

One embodiment can provide an apparatus. The apparatus can include a robotic arm, a pair of jaws coupled to the robotic arm configured to grip a fabric piece at a pair of predetermined locations, a force sensor coupled to the jaws and configured to measure a tension force applied to the fabric piece by the jaws, and a control module configured to control movements of at least one jaw based on the measured tension force, thereby allowing the fabric piece to be stretched.

A cloth clamping chuck includes a pair of chuck jaws and a driving process that rotates at least one of the pair of chuck jaws around an open-close axis x to change an opening degree of the pair of chuck jaws. The cloth clamping chuck has a catching portion which is arranged in a position out of an extension line of the chuck jaws, and in associated with the pulling operation of cloth, is caught in a portion of the cloth other than the portion clamped by the pair of chuck jaws to deflect a force applied to the clamped portion of the cloth toward a side along the open-close axis.

A cloth clamping chuck includes a pair of chuck jaws and a driving process that rotates at least one of the pair of chuck jaws around an open-close axis x to change an opening degree of the pair of chuck jaws. The cloth clamping chuck has a catching portion which is arranged in a position out of an extension line of the chuck jaws, and in associated with the pulling operation of cloth, is caught in a portion of the cloth other than the portion clamped by the pair of chuck jaws to deflect a force applied to the clamped portion of the cloth toward a side along the open-close axis.

A yarn blocking and storage device is provided. The device includes an upper platform having a first plurality of apertures therethrough and a lower platform having a second plurality of apertures therein. A plurality of support, spacers is securable between the upper and lower platforms to maintain the upper and lower platforms in a spaced configuration. A plurality of blocking staves is removably securable through the first plurality of apertures and within the second pluralities of apertures, wherein the plurality of blocking staves can be selectively positioned along the upper and lower platforms to support a motif thereon.