Abstract: The invention relates to an injection device (10) having a housing (15) and an injection fluid container (12) which can move, in relation to this housing, between a distal and proximal end position, and also having a pushrod (14) to act on a plunger (23) in this container (12) for the purpose of expelling fluid from the container. A drive connection (27) is provided between the pushrod (14) and the container (12) and, in the distal end position of the container, this drive connection is effective in both the proximal and the distal direction, but in the proximal end position of the container (12), it is only effective when the pushrod (14) is moved in the distal direction.

Abstract: The invention relates to a method for adjusting a real value (actual value) of a physical quantity to a preset value (target value) with the following steps:(a) the difference between the target value and the actual value (referred to below as the control deviation) and its sign (referred to below as the control sign) is determined repeatedly at interval; (b) the control deviation is converted into at least one electrical signal during or after each measurement, and the duration thereof (referred to below as the control deviation duration) is proportional to the absolute value of the control deviation at least in the range of the target value, and the value thereof is a function of the control sign; (c) the charge of an analog electrical memory arrangement is affected by this at least one electrical signal during the control deviation duration; (d) depending on the value of the charge of the memory arrangement, the physical quantity is directly or indirectly affected to keep it in the range of the target valu

Abstract: The present invention relates to an electric motor having a winding support (9) for the windings of the motor stator. The winding support is formed with a cylindrical coaxial space having a first end (16) which is at least partially closed and a second end (14) which is open. A plurality of regularly spaced bars (10) are formed on said winding support (9). Certain of the bars, preferably alternate ones of the bars, are formed with an elongated, outwardly extending projection, adapted for placement thereon of a generally oval winding of the motor stator. Preferably, the partially closed first end (16) has a central opening, into which a bearing (7) for the rotor shaft (4) or a stepped end of a split bell can be inserted.

Abstract: An arrangement with a electronically commutated motor (10) with a permanent-magnet rotor (14) is supplied with DC power from an AC supply (28, 30) via a rectifier (44) connected thereto and a DC link (46,52) connected to said rectifier (44). It has an arrangement (60, 64, 66, 68, 70) powered from the AC system for supplying power to the electronic control circuit (16, 18) of the motor (10), supplying a DC voltage at its output which is lower than that on the DC link (46, 52). To the latter is connected a series controller (76) for alternative power supply to the electronic control unit (16, 18) of the motor (10) which contains a control transistor (78) operating as a variable resistor which, at normal voltage, is blocked at said output (72, 46) and is activated when the voltage is excessively low, so that the electronic control unit (16, 18) can be powered from the DC link (46, 52).

Abstract: A rotating joint for pressure hoses has a plug-in part (1) with a hollow pin (4) that projects into and is sealed against a receiving part (2). The rotating joint also has a rolling bearing, in particular a ball bearing, that has an outer race joined to the receiving part (2) and a inner race joined to the plug-in part (1), as well as two coaxially-arranged elastically biased angular ball bearings (K1 and K2). The angular ball bearings are biased by a thrust collar (21) under pressure, which is slipped onto the hollow pin (4) coaxially to the receiving part (2).

Abstract: A memory device, e.g. a capacitor, is provided for a collectorless DC motor. This component is charged whenever a particular rotor position is reached. In so doing, a voltage value or quantity on this memory device is changed. This quantity is compared to another quantity, which is dependent on a desired parameter, e.g. ambient temperature or gas or dust concentration. A reference signal is produced when a particular reference criterion is satisfied. The difference between the beginning of this reference signal and a second predetermined rotor position, which follows the initial predetermined rotor position with respect to time, is measured, and on the basis of this measurement, the current flow of the collectorless DC motor is influenced or regulated. In particular, the current can be toggled on and off as the rotor passes certain predetermined positions.

Abstract: The invention relates to a sequin delivery system (1) for embroidery and/or sewing machines, in which a pusher (6) delivers sequins (3) from a sequin strip (2), which is at least partly guided laterally, in increments to a needle penetration point (24). A drive mechanism periodically moves the pusher (6) toward and away from the needle penetration point (24), and the pusher (6) has a slaving device, which on the motion of the pusher (6) in the direction of the needle penetration point (24) engages a hole (4) in a sequin (3). The pusher (6) is at least partially elastic, and in particular is a leaf spring, and presses the sequin strip (2) against a contact pressure plate (8).