Patent GB-438272-A (GB)
Title: Machine for the production, by chemical means, of explanatory titles for the pictures on cinematographic films
IPC: G03C11/02
Filed: 1934-05-07
Abstract: 438,272. Printing text on kinematograph films; printing-surfaces. HRUSKA, R., 27a, Rona utca, Budapest. May 7, 1934, No. 13761. Addition to 411,335. [A Specification was laid open to inspection under Sect. 91 of the Acts, Nov. 7, 1934.] [Class 100 (ii)] [See also Group XX] For carrying out the method disclosed in the parent Specification of producing text matter on kinematograph films, which consists in applying to the film surface a resist layer, removing this layer at the parts corresponding to the desired letters, and applying a reactive liquid which removes wholly or in part, or decolourizes, the photographic layer where exposed by the stencil layer, a machine is provided wherein the film 1 passes (1) from a reel 2 first beneath a coating vessel 4, supplied with resist liquid from a dropping vessel 13, and having a slot in its base covered externally by absorbent material which receives liquid through the slot and applies it to the film ; (2) in a zigzag path through a drying chamber 14 ; (3) if desired, over an inspection frame 15 illuminated from below ; (4) beneath a vertically-reciprocating type or block carrier 16 which removes the portions of the resist layer corresponding to the desired letters and is provided with a reciprocating brushing device which automatically wipes over and cleans the face of the type or block when the carrier 16 rises from contact with the film ; (5) if desired, through an idling chamber 48, and (6) through a series of tanks 49 containing the reactive liquids through which the film passes in a zigzag path round fixed and floating rollers 51, 50, to (7) a drying chamber 53 which delivers the titled film to a reel 54. The coating vessel 4 may be mounted on a pivoted arm so that it may be swung away from the film. The idling chamber permits the film to run continuously into the tanks 49 when the drive through the type press has been stopped for type changing. The type press comprises a base 55, Fig. 4, having a bed 34 adjustable in height by a micrometer screw 37, and an upright 16 on which is vertically reciprocatable by an eccentric 20 a member 17 having a horizontal part 17<1> having a rotatable disc 24 provided with guides 23 in which may be slid horizontally a type carrier 27, Fig. 7 ; the carrier may thus be adjusted with precision vertically, horizontally, and azimuthally. The type bodies 30, Fig. 7, in the carrier 27 are seated on an elastic cushion 27a, in order to facilitate adjustment of the type faces in a common plane, and the type are held in the carrier between jaws 28, 29 secured by screws 31. The brushing roller 42 for cleaning the type faces is carried on a slide 41 reciprocatable horizontally by a two-armed lever 45 pivoted at 44 and rocked by a member 38 which reciprocates vertically with the support 17 of the type carrier, lost motion devices being included to delay operation of the brush until the carrier 27 is raised. The Specification as open to inspection under Sect. 91 states also that the upper rollers in the tanks may be connected at will to the common drive of all the parts of the machine by clutches 52 when it is desired to lift the film loops in the tanks. This subject-matter does not appear in the Specification as accepted.