GB501871A - Improvements in autographic and like writing machines - Google Patents

Abstract

501,871. Writing-machines. WATSON, G. W. April 13,1938, No. 11424. Convention date, April 13, 1937. [Class 146 (iii)] A writing - machine, which is especially applicable for reproducing signatures on cheques &c. is constructed with a table 1 on which is a writing table 26 adapted to receive a sheet of paper on which is written the matter to be reproduced by means of a pen 79 carried by a clip 43 on a holder 42 attached to a pen carriage 41. The carriage 41 is arranged at the intersection of strips 9, 10 of materials such as cellulose, which are driven by means of electricallydriven wheels 5, 7 ; 6, 8, provided with projections engaging apertures 12 in the strips. The carriage 41 is connected to sleeves 37, 38 sliding on bars 35, 36 and the sleeves carry holders 46 which are adjustably mounted so as selectively to bring into operation scribing pens 49, or spring-pressed following-rollers 50. When an inscription is made along a line which is preferably parallel to the intersection of the angle between the strips 9, 10, the pens 49 trace out paths 55, 66 on the strips, and these are cut out to form templates. The following rollers 50 are then brought into contact with the edges of the template by means of detachable spring means, and the motion of the strips then causes the pen 79 to reproduce a copy of the signature written. By this means a number of cheques can be autographed with identical signatures. To enable variations in thickness in writing to be reproduced the table 26 is mounted on adjustable spring 24 in sockets in the table 1 which receive the square legs 25 of the table. A contact 27 on one of the legs moves over a rheostat 29 in a circuit containing a solenoid 57 and a spring-controlled armature 61 fitted with a pen 62 which traces out a line 63 for forming a further template in one of the strips. With this template is engaged a roller 67 on a spring-pressed rod 66 adapted to cause a contact 71 to move over a rheostat 72 in the circuit of an electromagnet 73 the energization of which causes an armature to act on an extension of the pen holder 43 and vary the writing pressure. At places where no writing is required as when the pen is raised for dotting an " i " or crossing a " t " the pen is raised by a lever 82 connected to an armature 81 of an electromagnet 80 in a circuit which is energized when the rod 66 is moved far enough to close a contact 84, 85. The rollers 5, 7 ; 6, 8 are connected to their shafts in such a manner that they can be adjusted circumferentially relatively to their driving axles. A numbering-device can be operated electrically by an. aperture 91 in the strip 10. The device may be varied by mounting the pen stationarily and causing the table 26 to move, and the arrangement of the strips 9, 10, can be varied, and more than two strips may be employed.