Abstract:
A door closer includes a housing; a shaft supported in the housing and connectable to a door; a brake piston supported in the housing and charging the shaft, the brake piston and the housing defining a first space away from the shaft; a blocking member; a spring loading the blocking member and extending orthogonally from the housing; and a pump for pumping brake fluid to or from the first space. The pump is disposed in a second space formed between the housing and the spring. The shaft is lockable in a position by the blocking member.
Abstract:
Door closer with a spring system that must be stretched when the door is open and supplies the closing moment necessary to close the door. There is provided a gear train between the spring system and the door to influence the force curve which varies over the opening angle of the door, whereby the gear train that varies in its translation ratio over the opening angle of the door has a first and a second gear wheel that mesh with each other and are each formed by a circular gear rim and are mounted eccentrically with respect to their centers while retaining the axial distance between them. The first gear wheel is connected with an output shaft and the second gear wheel is connected coaxially with respect to its center of motion with a gear wheel that is engaged in a rack that is coupled with the spring system. The axis of rotation of the output shaft runs through the center of motion of the first gear wheel, and all of the above elements are arranged so that the eccentricity e of the gear wheels that results from the center of a gear wheel and the center of motion is point-symmetric to their pitch point.
Abstract:
A door which can be automatically opened and closed can have an additional releasable connection for allowing the door panels to be manually opened by disengaging the door panels from the device for automatically opening and closing the doors. In particular, two-panel doors which execute a combined sliding and rotational motion around a vertical axis of rotation during the closing and opening motion can be configured with such a device to make it possible to use the doors in evacuation and emergency routes, i.e. routes in which a manual force can be applied from inside to open the door panels. Further, so that the door does not remain open, there can also preferably be switches or circuits in the construction which indicate that a manual opening of the door panels has occurred, in which case an electronic signal can be generated to place the drive device in motion, to thereby automatically restore the connection between the door panels and the drive system.
Abstract:
The detector of the invention relates to the field of X or gamma photon detection. It is particularly adapted as a measuring chamber in conventional radiology and as a detector in scanography.It comprises at least one transformer for transforming X or gamma photons into light photons and at least one transformer for transforming light photons into electric signals representative of the energy of the incident X or gamma photons. The transformer for transforming X or gamma photons into light photons comprises a photoconducting layer and an electroluminescent layer between two electrodes which are brought to a biasing potential. The transfer electrode may be formed by a Schottky barrier. The transformer for transforming light photons into signals comprises a photosensitive layer, as a photovoltaic cell, on a substrate.
Abstract:
A door hinge includes a body received in a cutout provided in the edge of a glass door, a pair of plates which grip the glass door and hold the body in the cutout, and lights on an edge of the body received in the cutout.
Abstract:
Holder for plates, in particular glass plates with borings or holes, whereby in each boring is inserted an annular body with an internal or female thread and an outside facing made of an elastic material. A threaded bolt for the connection to a load-bearing construction can be screwed into the annular body. The punctiform holder makes possible a pivoting and displacement of the glass plate within certain limits. It can be installed quickly and easily.
Abstract:
The movable partition system has a plurality of movable partition elements placed on a horizontal rail. Each of at least two of the movable partition elements has its own electric motor. Each electric motor has a current collector connected to it which passes along at least two conductor rails which are part of the electrical circuit when the electric motor is moved. These rails are connected via lines to a control unit which controls the power supply and the operation. One conductor rail is connected with a single line. On the other hand, at least one other conductor rail has a plurality of lines which lead to electrical connections or taps which are isolated from one another by insulators. This isolation permits the control unit to control the individual flow of current to each separate tap. This makes it possible to individually control and position the individual movable partition elements.