Patent GB-458871-A (GB)
Title: Improvement in typewriting and like machines
IPC: B41J11/48
Filed: 1935-09-04
Abstract: 458,871. Typewriters &c. REMINGTON RAND, Inc., Buffalo, New York, U.S.A. Sept. 4, 1935, No. 24690. Convention date, Oct. 17, 1934. [Class 100 (iv)] Sheet feeding and guiding arrangements ; paper carriages and supports; column-printing arrangements; line-spacing mechanism.-The main carriage of a typewriter or like machine is associated with an independently movable auxiliary carriage provided with a sheet-holder which is automatically and bodily displaced for line-spacing during the independent movement of the auxiliary carriage. The sheet-holder and main carriage may support a bill and a recordsheet respectively, the movements of the carriages and sheet-holder causing the items to be typed in a number of lines on the bill, and in one line on the record-sheet. In the mechanism shown in Figs. 1, 3 and 5, an auxiliary carriage A is provided with rollers 76 running on a rail 74 forming part of a frame 34 which is mounted, as described below, on the platencarriage 20. The platen-carriage is provided with a table T, apron 28, and pressure rollers 30 for the record-sheet L. A table 52 for supporting a bill-card or sheet B is movable vertically in guides 155 on the auxiliary carriage and is provided with triangular side-plates 51 and a front plate 53 forming a card-shoot. The bottom of the card passes into a channel 42 formed by curved plates 43, 44 secured to brackets 45 on the platen-carriage. An adjustable stop 47 in the channels arrests and squares the card in position for receiving the first line of typing. The stop is secured by screws 48 passing through slots 49. A stationary deflector 46, secured to the top plate 23, guides the card into the channel 42. The card is clamped to the table 52 by means of clamping-fingers 56 on a rock-shaft 57 which is mounted on the plate 53 and is provided with a finger-piece 62. A spring-urged latch 66 co-operates with an arm 63 on the rock-shaft to hold the clamping- fingers in engaged or disengaged position. The clamping-fingers have rubber tips 58, and seat in recesses 60 in the table. The auxiliary carriage is initially near the left-hand end of the rail 74, and is locked by co-operation of a spring- urged latch or bell-crank 81 on the auxiliary carriage with a notch in an adjustable stop 82 on the rail. The stop is secured by screws entering holes 87 tapped in the rail and so arranged that the stop can be secured in positions corresponding to letter-space intervals. The auxiliary carriage is urged towards the right-hand by a spring drum 91 which is mounted on the auxiliary carriage and is connected by a cord 92 to the frame 34. For automatically releasing the latch 81, the frame 34 is provided with rocking arms 121 connected by a bar 124 which engages a roller 85 on the latch. The rocking arms co-operate with adjustable rollers 118 on bell-cranks 95 which are secured to a shaft 100 on the platen-carriage. A bar 102 connecting the bell-cranks carries a support 104 for a cam-lug 110 which co-operates with a one-way abutment 111 on the framework 224. The support 104 is provided with a detent 106 which abuts on a spring-urged thumb-screw 107 and can engage any one of a series of slots formed at letter-space intervals in the bar 102. During tabulating movement of the platen-carriage, the lug 110 rides over the abutment 111, the bar 102 is raised and dropped, the bell-cranks 95 rock the arms 121, the latch 81 is released, and the auxiliary carriage is drawn towards the right-hand until the latch engages a notch in a so-called final stop adjustablv mounted on the rail 74. The distance between the stop 82 and the final stop is equal to the length of the lines typed on the card. The latch-releasing mechanism is effective even if the platen-carriage makes a tabulating movement of only one letter-space. When the platen - carriage is returned, the auxiliary carriage is returned to initial position and is then uncoupled to permit of further movement of the platen-carriage. For this purpose, the auxiliary carriage is provided with a sliding link 151 in connection with a bell-crank 150 abutting on a slide 143 which is formed with a lug 147 for co-operation with a one-way abutment consisting of a hook 133 pivoted on the framework. During return of the platen-carriage, the hook arrests the slide, the link is raised, a lug 154 thereon releases the latch 81 from the final stop, and the auxiliary carriage is uncoupled and arrested. On completion of return of the platen-carriage, the latch is moved into register with the stop 82, and when the platen-carriage moves in letter-spacing direction the latch engages the stop and couples the auxiliary carriage. For automatically linespacing the table 52, a bar 162 mounted on the frame 34 is provided with an inclined cam 183 for co-operation with a roller 164 mounted on a rack 166 which can move vertically on the table but is normally locked by a spring-detent. The table is provided with a roller 161 which runs on the bar 162 when the table is in its lowest position. When the auxiliary carriage is moved independently of the platen-carriage by means of the spring drum 91, the roller 164 rides up the incline 183 and comes to rest on a horizontal ledge at the top, the table being thereby raised four line-spaces. During the final part of the return movement of the platen-carriage, the cam rides away from the roller, and the table drops to its lowest position. Line-spacing is adjusted by means of a knob 172 which is mounted in a bracket 168 on the table and is geared to the rack 166, the knob being turned anti-clockwise to raise the roller 164 through one, two, or three line-spaces, so that when the roller co-operates with the cam, movements of three, two, or one line-spaces are effected. If the roller is raised through four or more line-spaces, the line-spacing mechanism is rendered inoperative. Manual line-spacing is effected by turning the knob clockwise. The table is constrained to move vertically and is counterbalanced by co-operation of racks 157 thereon with pinions 158 on a spring-urged shaft 160. To permit of ready substitution of cams 183 of different formation, the bar 162 is detachably secured by a latch, and the cam is detachably secured to the bar. The frame 34 is pivoted at 184 to the platen-carriage and can be swung forwards to facilitate introduction of the record-sheet L, movement of the frame being limited by means of a slotted link 185 pivoted to a bracket 185<a>. The frame is held in normal position by latches 187 which are releasable by means of a finger-piece 190. In operation, the auxiliary carriage travels with the platen-carriage and items are typed on the record-sheet and card. When the cam 110 engages the abutment 111, the auxiliary carriage is automatically released, drawn towards the right, and raised for line-spacing, so that further items are typed on another line on the card. If it is required to type on more than two lines on the card, more than one stop 82 and cam-lug 110 are employed. The mechanism may be embodied in the computing-typewriter described in Specification 374,109, and may be associated with the automatic tabulating-mechanism described in detail. Specification 372,476 also is referred to.