Patent GB-189724363-A (GB)
Title: Improvements in and relating to Automatic Calculators, applicable to Type-setting Machines, Typewriters, and the like.
Inventor: SANDEMAN GEORGE
Filed: 1897-10-21
Granted: 1898-09-10
Abstract: 24,363. Sandeman, G., and Brown, G. M. Oct. 21. Monotype and like machines; type-writers &c.-Relates to calculating or justifying mechanism, applicable more particularly to the strip-perforating apparatus of the Lanston Monotype machine, described in Specifications No. 7399, A.D. 1896, and No. 13,267, A.D. 1897, for automatically dividing the 'copy' into lines and spacing them. The machine shown in plan in Fig. 1 and in sectional elevation in Fig. 3 is a strip-perforating machine in which the lines are automatically divided and the additional-space perforations required to set the spacing or justifying mechanism are made at the beginning of each line. The strip 1 to be perforated is led into the machine round rollers X, Y over a table Y*, where it is perforated by the character &c. punches S, over guide-rollers y, y' between which a loop is formed in which rests a flanged roller Z*, over a table Z where it is punched by the additional-space punches p, and thence to the drawing-rollers z. The strip is fed the required distance after each punching oreration. The punches S are connected to frames a* operated by hooks on the key levers a. The ' new - line' perforation is made at the end of each line by one of a series of punches t, the distance between any two of which is equal to the distance the paper is fed at each operation of the keys. The required punch is operated by a hammer T, which is allowed to fall at the end of each line, and which strikes a head v<2> on a sliding rod v moved along by engagement with the roller Y and a presser-roller u<1>. The roller u<1> is lifted at each operation of a space key to allow the rod to be returned by a spring to normal position at the end of each word. In case a portion of a word is punched, and this word cannot be included in the line, the head v' is in position when the hammer falls to operate the punch at the end of the previous word. The additional space punches p are operated by heads Q of pivoted arms q, which are swung over the proper punches, by the justifying or calculating apparatus, and under a hammer P which falls at the end of each line. The hammers T, P are pivoted near the front of the machine, and are raised and permitted to drop at the required times by arms on a shaft K. The strip is stopped during the operation of the punches p by a catch o engaging the 'new-line' perforation. On each key lever a is a projection a<1> which depresses a pivoted frame B through a distance corresponding to the thickness of the type represented by the key lever. A rear arm of the frame B is connected to a bell - crank lever C, carrying a multiple pawl D operating a ratchet-wheel e on a toothed drum E. Engaging the drum E are two similar toothed wheels F, F', each having a snail cam f or f<1>, adapted to engage and lift a lever J until the line is filled, and then allow the lever J to fall. The wheels F, F<1> and their cams are mounted in sliding supports G, G<1>, so that they may be withdrawn from engagement with the drum E, when they will be rotated back to normal or zero position by springs. During the punching of a line, the lever J engages one snail cam f or f and the frame G carrying the other or inoperative snail cam is engaged by a lever h which is operated at each depression of the space key to disengage its wheel F or F<1> from the drum E, and permit the wheel to return to zero at the end of each word. At the end of each line the lever J is shifted over to the other snail cam, and the lever h is also shifted into engagement with the notch g of the other frame G or G'. In this way the part of a word which may be punched and not included in a line is recorded by the snail cam on to which the lever J is shifted, and is carried or added on to the next line. The zero position of the wheels F is regulated, according to the required length of line, by a pivoted stop frame M which may be connected to an index finger m' at the. side of the machine. The arm J operates to turn the shaft K by engagement with a frame k fixed to the shaft. The shaft K, by a clutch and bevel gears, turns a shaft I in one direction. A crank i on the shaft I operates to move the lever h from one notch g to the other, and a crank i<1>, by a link j, moves the hub of the lever J. The arms q are stopped with their heads Q in position over the required punches by means of two graduated stepped discs R on a vertical shaft R'. The discs R move together, one of them being stepped to indicate or register units, and the other tens of units of space. The shaft R<1> is turned by a depressible sleeve R<2*>, on the lower end of which is a disc R<2> having concentric rows of teeth upon its upper side. With these teeth gears a pinion 2 on a shaft E‹ geared to the drum E by bevel gears. The pinion 2 slides on its shaft, and is moved at each operation of a space so as to be brought into gear with another row of teeth on the disc R<2>. The sleeve R<2*> and disc R<2> are depressed at each operation of the space key, and are also held depressed until the end of a line is approaching, so that the disc R<2> is turned by the pinion 2 to set the discs R according to the length of the portion of a word excluded from a line, but required to fill it. This movement also varies with the number of spaces in the line because of the movement of the pinion 2 into the different rows of teeth on the disc R<2>. If a line is exactly filled at the end of a word the discs R are not moved at all, and the arms are prevented from moving over the punches p. At the end of the line the arms q are released and move until stopped by the discs R, and are then struck by the hammer P.