Patent GB-318068-A (GB)
Title: Improvements in and connected with holders for manuscript and like copy
IPC: B41J29/15
Filed: 1928-12-13
Abstract: 318,068. Tugwood, R. J., (Harnsberger, H.). Dec. 13, 1928. Copy-holders.-A copy-holder for shorthand notebooks or loose sheets, which is adapted to be mounted directly behind a typewriter, is provided with friction feed means for gradually moving the front page upwards and turning it over, so as to expose the underlying page. The device preferably comprises a collapsable frame, which can be contracted, when not in use, so as not to project above the typewriter. Framework. The frame of the device consists of a lower or supporting member 30, Fig. 1, and an upper member 31, which carries the copysupporting means, the two members being connected by lazy-tongs. mechanism 33, 35 to permit, the device to be raised and lowered. The lower member 30 is of box-like form for housing the lazy tongs and the lower part of the upper member 31, when contracted. A spring tends to erect the lazy-tongs, which can be locked in either extreme position by means of a spring plate, adapted to engage the upper pivots of the lazy-tongs. To the lower frame-member 30 are pivoted two side-arms, which can be opened out, so as to embrace the sides of the typwriter, and can be locked in the open position. The device may be detachably or permanently mounted behind the typewriter, or may be incorporated in the construction of the machine itself. Copy-supporting means. On the upper frame. member 31 is guided a vertically adjustable booksupport, comprising a plate 90, Figs. 1 and 10, having a supporting ledge 91. The support can be adjusted by means of racks 92 and pinions 94 on a shaft 96, which can be turned by means of a knob 97, Fig. 1. After adjustment, the booksupport is locked against downward movement by a releasable dog 98, which engages one of the pinions 94. When the dog is released from the pinion, an arm 105 thereon is in position to enter a notch in one of the racks, so as to arrest the book-support in a position suitable for holding an ordinary shorthand notebook. A notebook may be supported on the ledge 91 by means of a backing- plate 108, Fig. 23, having pivoted hook-shaped members 172 to engage the fold of the book. The upper frame-member 31 is provided at the top with a clamping-device for sheets, in the form of a V-shaped member 109, Fig. 21, having pivoted to it a U-shaped member 111, so that a number of sheets can be gripped between the two members under the action of a spring. The V- shaped member is pivotally mounted, and can be secured in different angular positions by means of a lever 122, Fig. 10, and a notched segment 121, so as to adjust the reaction exerted by the paper against the page-turning member. Page-turning mechanism. This comprises a rotary or reciprocating sheet-feeding member adapted to contact with the front page of the copy near its upper end, and to move it upwards. The feeding-member may comprise a number of rolls 125, Figs. 1 and 21, spaced along a shaft 126, which mounted on a carrier 127 pivoted to the upper frame-member. The pivot 128 of the carrier is above and behind the point of contact of the rolls and the copy, so that the rolls are held by gravity against the sheet to be turned. Additional pressure may be exerted by means of a spring 160, Fig. 10, the tension of which can be adjusted by means of a lever 157 and a notched segment. The shaft 126 is given a step-by-step rotation in a constant direction by a grooved spring drum, connected to the shaft through a one-way clutch, and rotated by a flexible element attached to the drum and making one or two turns around it, so that by pulling on the flexible element, the feeding-member is advanced, and the sheet is fed upwards by a corresponding amount. A guide-plate 131 deflects the raised sheet towards the rear of the device . On release of the flexible element, the drum is returned to initial position by its spring, the shaft 126 being held stationary by a friction device. The carrier 127 of the feeding-device may be lifted away from the copy, in order to expose it completely, and may be held in raised position by a pivoted supporting member 163, Fig. 7. The flexible element for actuating the feeding-member passes through a flexible sheath 193, Fig. 1, and is attached to a member 181, adjustable upon a lever 180, which can be rocked by a shaft, extending towards the front of the typewriter, and provided with an operating-handle. The extent of feed can be varied by adjusting the position of the member 181 on the lever 180, and also by means of an adjustable stop, controlling the movement of the lever. Line-marker. A line-marker is formed by a strip 209, Fig. 1, carried by a clamping-member 210, which is pivoted to the lower ends of two arms 211, Fig. 7, which, in turn, are pivoted to the upper ends of levers 213. Springs 215, acting on levers 213, hold the line marker against the copy. The member 210 is frictionally gripped between the links 211, and the marker can be adjusted to any desired position by raising or lowering the links 211, which are frictionally held by the levers 213. Gauge-members 222, adapted to engage the side edges of the copy, are adjustable along the marker.