Patent GB-401763-A (GB)
Title: Improvements in memorandum appliances
IPC: B41L3/14
Filed: 1932-05-25
Abstract: 401,763. Memorandum appliances. JANSEN, P. A. M., 49, Pieter de Hooghlaan, Hilversum, Holland. May 25, 1932, No. 14843. Convention date, Sept. 17, 1931. [Class 16.] A memorandum appliance comprises a writing unit having a writing table and a papermagazine, and a duplicating unit comprising a carbon-paper magazine, positioned transversely with respect to the writing table, and a clamp for holding the free end of the carbon paper, the units being adapted to be detachably connected so that they can be separated to enable the writing unit to be used alone. In the form shown in Figs. 1 and 3, the frame 1 consists of single plate bent at one end 2 in semicircular form to receive a paper roll 5, a flat writing table 3, and a shaped end part 4 adapted to receive a pen or a pencil. The paper-roll holder 2 is provided with a rubber foot which, with the part 4, supports the appliance. Two webs 5a, 5b of paper pass from the roll 5 be neath a paper-guide 6, consisting of a bar provided with two pins which project through holes in the writing table 3, and beneath a paper-cutting knife 8. The knife 8 consists of a flat strip provided with slanting pins which project through holes in the table 3. A finger recess 10 to facilitate the withdrawal of the paper is situated in the frame 1 opposite a spring-pressed U -shaped member 11 mounted to surround the recessed portion 12 of the knife 8. When the member 11 is pushed back it exposes a portion of the paper. The carbonpaper holder and clamp are formed from a resilient plate 18 provided with keyhole recesses 20 which are detachably engaged by a transverse movement by headed projections 19 on the underside of the writing table 3, the plate 18 being bent at one end to form a cylindrical container 15 for the carbon-paper roll 17, and bent at the other end into 3-shape to provide the clamp 16 which engages over the edge of the writing table to clamp the end of the carbon paper 17a. The carbon-paper roll 17 is mounted on a shaft 21 which is resiliently pressed upwardly by end fittings 21a. The carbon paper 17a passes across the table 3 between the paper webs 5a, 5b, to the clamp 16, and then through a slot 22 in the clamp. The slot 22 is provided with a projecting longitudinal edge 22a which serves as a cutting-edge for severing a used portion of carbon paper. Instead of a double-wound roll two single-wound rolls or stacks of writing paper may be used, or a threefold wound roll may be employed ; in the latter case two or more rolls or stacks of carbon paper may be employed. The original and the duplicate web may be passed through a slot in the table 3, underneath the table 3, through a second slot near the receptacle 4, and led over the table 3. In this case the paper-guide and the knife are interchanged. Where the writing paper comprises forms having registration perforations therein, the underside of the paper-guide 6 is provided with downwardly projecting cone-shaped studs which are adapted to pass through the perforations in the forms and holes in the writing table. The usual side pins which retain the guide to the frame 1 arc provided with springs which draw the guide towards the frame 1. In the modified form shown in Fig. 7, the carbon-paper holder and clamp and the paper-knife form one unit which is situated above the writing table 3. The carbon-paper clamp consists of two resilient steel plates 25 secured to the bottom side of a plate 23 which connects the unit, and the paper-Knife is provided in similar manner to the arrangement shown in Fig. 1 with a movable piece which is spring-pressed towards the operator. The plate 23 is bent downwardly to provide two side lugs 35 which are pierced to support the spindle 33 of the carbon-paper roll 34. The spindle 33 is also mounted in holes of brackets 31 secured by screws to the writing table 3, which mounting enables the plate 23, the carbon-paper clamp plates 25, and the paper-knife to be raised and swung about the spindle 33 as pivot. The spindle 33 is longer than the distance between the two lugs 31 and is provided with reduced diameter portions to enable it to be moved longitudinally so that the reduced diameter portions coincide with access slots 31b in the lugs 31. In this position the duplicating unit can be detached from the writing table by a lateral movement. A flap 36, pivotally connected to the plate 23, is spring-pressed against the carbon-paper roll 34 to resist unwinding. A vertical part 39 of the plate 23 is slotted to receive a slidable lockstrip 37 connected to the underside of the table 3. The plate 23 has an aperture to enable entries to be made on the writing paper.