Abstract: In order to detect a vehicle position on a rail assembly, magnetorestrictive sensors are integrated into said rail assembly and marking magnets are disposed on the vehicles. Measuring bars are successively arranged without overlapping each other, thereby forming a measuring path. In order to detect the vehicle position even in areas where the bars are jointed to each other, each vehicle is provided with at least two marking magnets which are arranged at a certain distance from each other. A rail switch provided with at least two measuring bars is also disclosed.

Abstract: An apparatus for embroidering surface-shaped sewing material includes an embroidery device which is connected, via an intermediate insertion of a distance adapter, to the column or free arm of a sewing machine. By inserting the distance adapter between the embroidery device and the sewing machine the distance between the embroidery device and the free arm or the column of the sewing machine is increased, which makes it possible to use an embroidery frame having a cross-sectional surface which is significantly greater than an embroidery frame which is able to be used if there was simply a direct connection between the embroidery device and the free arm or column of the sewing machine.

Abstract: An apparatus for embroidering surface-shaped sewing material includes an embroidery device which is connected, via an intermediate insertion of a distance adapter, to the column or free arm of a sewing machine. By inserting the distance adapter between the embroidery device and the sewing machine the distance between the embroidery device and the free arm or the column of the sewing machine is increased, which makes it possible to use an embroidery frame having a cross-sectional surface which is significantly greater than an embroidery frame which is able to be used if there was simply a direct connection between the embroidery device and the free arm or column of the sewing machine.

Abstract: An electronic sewing machine is equipped with interfaces (6, 7, 8, 9) by which additional stitch or stitch pattern data can be introduced into a changeable memory of the sewing machine. This conception makes possible that the user of the sewing machine is able to store afterwards, i.e. after having acquired the sewing machine, a selection of preferred stitch types or stitch patterns according to individual wishes, and then to fetch such data without need for any external auxiliary means.

Abstract: An accelerator includes a beam tube having a cavity with a central axis along which particles can be accelerated. A radio frequency power coupling device couples the cavity to a high frequency power source. The coupling device includes a coaxial waveguide having a central axis, an outer conductor and an inner conductor. The outer conductor is fixed relative to the cavity defining an angle between the central axis of the cavity and the central axis of the coaxial waveguide. An external drive moves the inner conductor along the central axis of the coaxial waveguide.

Abstract: A regulating mechanism for needle thread between a standard thread tensioning device in the head of the upper arm of a sewing machine and the eye of the reciprocable needle employs a lever-shaped takeup member which is oscillated in the head in synchronism with the movements of the needle, and a wire spring which is mounted directly on the takeup member. The spring has a U-shaped thread engaging portion which surrounds and cooperates with a hook-shaped arm of the takeup member to define a passage for needle thread. The spring tensions the thread during certain stages of each stitch forming step.