Abstract: A hand tool apparatus uses a cutting tool with a first width and a tool axis to machine a hole in an object. The hole has a second width at least as large as the first width of the cutting tool. The apparatus includes a housing, a spindle unit in the housing for rotating the cutting tool and an orbital drive for rotating the spindle unit. An axial feed mechanism moves the orbital drive and the spindle unit jointly either toward or away from the object being machined.

Abstract: A hand tool apparatus uses a cutting tool with a first width and a tool axis to machine a hole in an object. The hole has a second width at least as large as the first width of the cutting tool. The apparatus includes a housing, a spindle unit in the housing for rotating the cutting tool and an orbital drive for rotating the spindle unit. An axial feed mechanism moves the orbital drive and the spindle unit jointly either toward or away from the object being machined.

Abstract: A sheet film magazine for a film changer has a conveyor for conveying individual film sheets from a film stack to an exposure or receptacle portion of the film changer. The conveyor comprises at least one conveyor wheel which is attached to a shaft that is parallel to the plane of the film sheets and which is driven with a drive mechanism in the conveying direction of the film sheets. The conveyor also has a spacing mechanism for spacing between a film sheet and the conveyor wheel such that the conveyor wheel, when conveying a film sheet from the sheet film magazine to the exposure or receptacle portion, presses against the surface of the film sheet, and is removed from this surface after the end of the film conveying. In order to enable a high film conveying frequency with a conveyor of this type in a simple way, following the end of a film conveying, the conveyor wheel is separated from the surface of the film sheet with the assistance of a separating mechanism.

Abstract: A sheet film magazine for a film changer comprises a housing and a cover that form a space for storing a stack of unseparated sheets of film that lie against a film plane. The magazine includes a conveyor which is provided for conveying individual sheets of film from the film stack through a film exit opening of the sheet film magazine into a receptacle part of said film changer. So that only one sheet of film is conveyed out of the magazine, the sheet film magazine is provided with a control arrangement adjoining the exit opening and the arrangement guarantees that only one sheet is removed at a time.

Abstract: An x-ray film magazine has a housing and a cover which in combination form an interior volume having an approximately C-shaped cross section, which receives a number of sheets of x-ray film in a stack made to conform to the C-shaped cross section. A foil is provided in the interior of the magazine having one end rigidly connected to a base of the housing, and an opposite end being resiliently connected to the cover of the magazine. The foil at least partially supports a bottom-most or lowest sheet of the stack of x-ray film sheets, and due to the resilient mounting of the foil, always presents the uppermost sheet in the stack of film sheets to be presented in a position which permits the uppermost sheet to be reliably conveyed out of the magazine to an exposure position in an exposure component adjacent the film magazine.

Abstract: An exposure unit for a film changer includes a fastening arrangement for upper and lower platens which are movable relative to one another so that film is introduceable therebetween when in one position and so that the film is pressed between the platens when the platens are in another position. The fastening arrangements of at least the upper platen are resiliently formed to insure parallelism between the lower platen and the upper platen during exposure of the film when the platens press against the film.