Heberlein Maschinenfabrik Ag

Tesa Sa

Hans Bors Habotex-consulting

Heberelein Maschinenfabrik Ag

Walter Luthi

Hans Bors

An apparatus for the determination of the inner condition of a porous material, particularly a textile material web, and a method for running the apparatus. The apparatus comprises a pressure element and an extracting and collecting element which clamp the material between them; the clamped-in sample is then extracted with a preferably hot extracting fluid. The extract will then be analyzed in order to yield indications of the inner condition of the material and/or of substances present in or on the porous material.

Apparatus and method for the analysis of porous materials

The device comprises a sensor (2) which is connected to a movable housing (1) by an elastically deformable mechanism (4). The sensor and the housing are connected to an electric circuit (5) comprising:

Sensor device for a machine for measuring conductive parts mounted on a

The yarn cooling apparatus comprises an inner tube through which passes a liquid coolant, e.g. water, and in which there is disposed a coaxial cylinder having a spiral peripheral groove of wedge-shaped cross-section along which the yarn travels. Provided at the yarn outlet end of the coolant tube is a supporting member which has a fixed part with a groove of U-shaped cross-section through which the yarn travels and which extends in the direction of the axis of the coolant-carrying tube, and a movable part provided with air and coolant passages arranged to cover and uncover the groove, according to its position.

Apparatus for cooling heated thermoplastics yarns

A device for cooling heated textile yarns derived from thermoplastic material includes a cylindrical cooling pipe (1) through which the yarn (2) is passed, the pipe (1) being filled with a cooling fluid and having a curved plate (3) inside it which covers the entire length of the pipe (1). A coaxial jacket (5) encloses the pipe and defines an annular cooling zone between the pipe and jacket. At the exit end of the pipe (1) is located a removable sealing plug which has an inlet and outlet for cooling fluid, and an air inlet. Cooling fluid and cooling air can pass into the pipe (1) via the sealing plug and circulate in the pipe and the annular zone so as to cause rapid cooling of the yarn.

Device for cooling heated textile yarns of thermoplastic material

Apparatus for friction texturing textile yarns includes a cylinder (1) rotatable about its longitudinal axis on a base plate (2). The outer surface of the cylinder has regularly spaced friction surfaces (3) with grooves therebetween, and a spirally shaped outer cover (6) containing pegs (5) which project radially into the cylinder and engage grooves (4). The cover (6) has a cylindrical collar (10) having a yarn guide (9), the collar being movable along the axis of the cylinder and held in a desired position with a set screw (11). The top of the cylinder (1) is covered with a disc (13) having a projecting annular flange. Yarn is guided round the cylinder (1) by the pegs (5) and false twist by friction is imparted to the yarn.

Device relating to apparatus for texturing textile yarns

Apparatus for heat-treating textile yarn includes a heater tube (3) through which the yarn is passed, the tube (3) having a holder (2) at each end and a seal in the form of a stopper (5) fitted into a neck (4). The stopper (5) has a groove (10) on its outer surface for guiding the yarn through the heater tube (3). Steam is introduced at the yarn entry end of the heater tube (3), passes over the groove (10) and is removed via passages (11) in the stopper and a suction pipe (7) connected to the passages. The heater tube (3), suction tube (7) and steam supply tube (8) are surrounded by an insulating housing (1) to minimize heat losses.

Device relating to heater units for the heat-treatment of textile yarns

The yarn entry and exit openings in a container for high pressure gaseous or liquid yarn heating medium are each sealed by means of a plunger mounted to slide in a cylinder extending from the opening. Each plunger is formed with a longitudinal groove of U-shaped cross-section on its surface. Therefore, to thread the yarn, it is only necessary to withdraw the plungers from their cylinders, place the yarn in the grooves and replace the plungers. Substantially to eliminate the escape of medium along the grooves, each may have a depth substantially equal to its width and amounting to between 0.1 mm and 0.5 mm, according to the yarn. However, to accommodate yarn with knots along its length or strechable yarn, this dimension may be increased and the pressure of any escaping medium reduced in a stepwise manner by recesses distributed along the plunger and intersecting the groove, into which recesses any escaping medium can expand.

Heating devices for the heat treatment of textile filaments or yarns

Apparatus and a process for texturing textile yarn of thermoplastic material are described wherein the yarn is fed through input guide means including a yarn tension sensing unit to the surface of a continuously rotating cylinder having equidistantly spaced annular grooves distributed along its length with an annular friction surface between each pair of adjacent grooves. A series of rod-shaped thread guides, one for each groove, project from a support element into the grooves at points located on a notional helical curve extending along the cylinder. Thus, the yarn is constrained to travel along a helical path in contact with at least a portion of the series of thread guides while in contact with rotating annular surfaces. The yarn leaves the cylinder by way of output guide means including a yarn tension sensing unit. The angle between the direction of movement of the surface of the rotating cylinder and the direction of movement of the yarn along the helical path is a constant, the angle being larger than the twist angle imparted to the yarn. The input and output tension sensing units may mechanically provide an indication of the ratio of these tensions enabling the ratio to be adjusted if it departs from a predetermined value, usually unity. Alternatively, these units may be electrical and control a servo motor that provides the required adjustment by moving an input thread guide for the yarn. This thread guide may be mounted on a member mounted on a plate to rotate about the cylinder and series of rod-shaped thread guides that extend through a hole in a plate. The servo motor moves the plate along the axis of the cylinder while a cam interaction between the rotatable member and the support for the series of thread guides causes the input thread guide to move parallel to the helical curve. When starting, the plate can first be moved to or close to the output end of the cylinder to reduce yarn tension.

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Ebnat-Kappel, Switzerland

Walter Luthi