Agfa-gevaert Ag

Herbert Muller

Gunter Fauth

Peter Lermann

Leonhard Huber

Franz Lechner

Helmut Kirschner

A self developing type photographic apparatus wherein one of the spread rollers is driven by one or two toothed racks forming part of or constituting a manually reciprocable handle. One of the racks further rotates a gear which programs the movements of an expelling device for exposed film units, the movements of a device which controls the width of the gap between the spread rollers and the cocking of the shutter.

Self developing type photographic apparatus

An improved pressure roller in a photographic apparatus of the self-developing type is disclosed. The roller has a rigid core provided with two axially spaced circumferential grooves which are filled with resiliently compressible material. The core is jacketed with a resilient sheath which covers its circumferential surface, including the grooves and the material therein.

Photographic apparatus of the self-developing type

The shutter mechanism includes an aperture-unblocking member mounted for movement between an unactivated aperture-blocking position and an activated aperture-unblocking position. A cocked drive mechanism is coupled to the aperture-unblocking member and is operative when released for moving the member from the unactivated to the activated position. An inertial braking mechanism is driven by the drive mechanism when the latter moves the aperture-unblocking member to the activated position, and is operative during such movement for applying to the drive mechanism an inertial braking force slowing the movement of the aperture-unblocking member to the activated position. The drive mechanism includes a drive cam, and the inertial braking mechanism includes a driven cam. The surface of the drive cam bears upon the surface of the driven cam and transmits to the driven cam the drive force by means of which the drive mechanism drives the inertial braking mechanism. The cams are so configured that, as the drive mechanism drives the inertial braking mechanism, the surface of the drive cam rolls along the surface of the driven cam.

Shutter mechanism

A self-developing type photographic apparatus includes a self-developing packet having a pair of juxtaposed sheet elements and a supply of film-processing fluid provided between the sheet elements with at least one of the sheet elements forming part of an area which is to be coated and developed by the fluid. The packet is adapted to be advanced through a pressure-generating gap defined between a pair of juxtaposed rollers. One of the rollers has a rigid sheet-contacting surface, whereas the other of the rollers has an outer resilient material layer. Various embodiments for facilitating the uniform spreading of the film-processing fluid over the film area are disclosed, particularly in the border regions thereof.

Growing community of inventors

Assling, Germany

Herbert Muller