Patent GB-588060-A (GB)
Title: Improvements in or relating to typewriting or like machines
IPC: B41J11/36
Filed: 1945-01-26
Abstract: 588,060. Typewriters &c. REMINGTON RAND, Ltd., and WOODGATE, P. W. Jan. 26, 1945, No. 2121. [Class 100 (iv)] Feed-roller rotation for condensed-record work; paper supports.-In a typewriter or like machine, e.g., an accounting machine, in which one or more sheets are advanced to a greater extent than others passing through the machine, the two sets of sheets are held against the platen for line-spacing by rollers or the equivalent which are independently releasable for the two sets, and one set is positively gripped ata position beyond the platen so that slack develops during line spacing which is taken up by movement of the gripping means through a predetermined distance after release of that set from the platen but while the other set of sheets are held stationary. The device is in the form of an attachment and may be used for typing a series of cheques 39 in web form and at the same making a condensed record on a sheet 30. Rollers 4, 13 respectively press both sheets and the sheet 30 only, against the platen and are independently releasable. The roller 4 is carried by links 5 pivoted to links secured to a shaft 6 to form toggle links, the shaft being rotated to move the roller to and from the platen by a handle 8 through gearing 10, 11. A link 12 carries the rollers 13 and is operated by a lever 16 pivoted thereto at 116 and fulcrummed at 124 on the frame 2. The web 39 passes over a roller 40 against which it is pressed by spring-pressed rollers on a stirrup pivoted on a shaft 50 and releasable by a handle 54, the roller 40 and associated parts being components of the attachment which is mounted on a frame 31 incorporating a holder 38 for the web pack 39. The shaft of the roller 40 extends into a casing 60, Figs. 5 and 9, fixed to the frame 31 and containing mechanism which can be attached to and operated from the handle 8, so that movement of the handle to release the roller 4 causes a subsequent predetermined rotation of the roller 40. The roller 40 is geared to a shaft 65 carrying a disc 62 and having freely mounted thereon an arm 69 normally retracted against a stop 80 by a spring 70. The upper one of toggle links 66, 66<1> is pivoted at 68 to the end of the arm 69, and to the lower link is pivoted at 73 a brake shoe 64 forming a one-way clutch for engaging the disc 62. A link 72 connects the pivot 73 to a bracket 71 fixed to and offset from the arm 69. An arm 74 is pivoted to the arm 69 at 173 and'has a slotted extension engaging the pivot 67 of the toggle. The lower end of the arm 74 is pivoted to a link 75 having slots 76, 77 for engagement with a pin 78 on the lever 8. When the lever 8 is operated, the roller 4 is lifted whilst the pin 78 moves from one end of slot 76 or 77 to the other end. Thereupon, the arm 74 first causes the toggle 66, 661 to move the brake shoe 64 to grip the disc 62 and then turns the arm 69 and thus the disc so as to rotate the auxiliary feed roller 40. Three lengths of stroke for the arm 69 are provided for (1) by inserting pin 78 in slot 76 and using an adjustable stop 79 for limiting the arm movement (2) by inserting pin 78 in slot 77, and moving the stop 79 to an inoperative position, the frame bar 31 then forming the limiting stop and (3) by inserting pin 78 in slot 76, rendering stop 79 inoperative and limiting the retracted movement of the arm 69 by a stop 85 shown in Fig. 9 in inoperative position. The feeding movement of the roller 40 may take place on the return stroke of the lever 8. Paper-guiding arrangements.-The sheet 30 passes between the platen and a guide plate 118 and the web 39 between the plate 118 and a plate 120. One end of the plate 118 is hooked over the pivot 121 of a lever 122 slotted at 123 to engage the pivot 116 of the lever 16. When the lever 16 is operated to release the rollers 13, the lever 122 is turned and its nose 125 engages the plate 118 to move it away from the platen for inserting a sheet 30. The plate 120 is situated in the gap between the plate 118 and a fixed plate 18 and is movable out of the gap when the roller 4 is released by connections 20, 21 geared to the shaft 9 of the handle 8. According to the Provisional Specification, instead of a brake-shoe 64, a spring-urged pawl-like member is employed. Also, it is stated that the device can be used in a teleprinter.