Abstract: A setting device for the conformal positioning of, for instance, a working member on a robot, has a driving motor and a reduction gearing. The latter consists of at least one spindle drive which moves a steel band or the like which is disposed around the take-off shaft and which is pretensioned against the torque applied by the tensioning means. The pretensioning can be applied by a spindle drive opposingly running in the same direction. Furthermore or alternatively it is possible to apply the pretensioning by spring force which acts on the steel band or steel bands.

Abstract: A reprographic camera is described having a table for an original subject, an objective and an image frame. One of these parts is fixed and the others are relatively movable to produce variable scale images or reproductions of the original. The movable parts are coupled via a transmission member which gradually changes the ratio of the lengths of their displacements throughout their ranges of movement.

Abstract: A perforated filing strip is provided and has a self-adhesive strip thereon for attachment to a document to be filed. The perforations in the filing strip receive locating pins or the like for filing. The perforations are on an outer part of the strip and the self-adhesive strip is on the inner part of the filing strip, the inner and outer parts being defined from each other by a fold line.

Abstract: Apparatus for controlling cut-off of paper from a web thereof fed through a blue print machine or the like, includes a main shaft driven by the drive structure of such machine, a threaded sleeve is mounted on said main shaft and is resiliently restrained against rotation. A plier-like pair of jaws is received in the threads of said sleeve for displacing said sleeve axially when it is clutched to said main shaft by an electromagnetic clutch. Holes are provided in said sleeve which are detected optically to operate in the generation of a control signal to effect cutting of said web.