Patent GB-190203486-A (GB)
Title: Improvements in Apparatus for Justifying and Spacing Type.
Inventor: THOMPSON WILLIAM PHILLIPS
Filed: 1902-02-11
Granted: 1902-05-29
Abstract: 3486. Thompson, W. P., [McClintock, F.]. Feb. 11. Type, setting.-Relates to machines for justify ing lines of type, of the kind described in Specification No. 17,302, A.D. 1898. Fig. 1 shows a plan of the machine, Fig. 12 a vertical longitudinal section, Fig. 20 a view of the line carrier, and Fig. 19 a wedge-shaped spacing- bar. The types as they are composed, by operating the keys U, R, &c. of the composing- mechanism, pass down the shoot s and are assembled in the line holder or carrier c. There are two line holders c, each of which is of the form shown in Fig. 20. A type recess 12 is cut in one side of the holder of the size of the types, and is closed at the front end by a stop 2, and at the rear end by a block 6 adjustable for different lengths of line. The block 6 is clamped in a slot 1 by screws, and is provided with a spring plate '8 which closes the end of the type recess 12, and which may be moved inwardly to clear the cam 3, which rotates constantly with a shaft 60, to feed the type and line holder forwards as the types drop from the shoot s. The plate 8 is withdrawn, to clear the cam 3, as the type holder moves forward down the track or guide-way b on the plate a, by a bevelled plate on the side plate f of the framing. The space-bars 19 are in the form of wedges having slits 14, and books 20 by which they are withdrawn after wedging out the line. The lower edge is cut away at 16 to clear the rib 10 in the slot 1, and will move freely through the slot. The rib 10 is rounded and the curved recess 15 in the space-bar engages it. The shaft 60 of the cam 3 rotates in a bearing in the upper end of a pivoted plate 65, and is driven by gearing 61, 62 on the plate 65, from the driving- shaft t, which is constantly driven by a pulley q and belt. The upper end of the plate 65 and with it the shaft 60 and cam are adjustable by screws 66. The space-bars, after being withdrawn from the line, are returned along a guideway to the upper end of the plate a, and are inserted in the line by the operation of a space key p. The end space-bar is first lifted to the level of the slot 1 in the line holder, by a lifter on a vertically-movable slide 101, and is then driven forward into the line holder by a driver on a horizontally-movable slide 109. The slides 101, 109 are operated, to insert the spaces, by springs 105, 125, when permitted by cams on a sleeve on the shaft t. This sleeve is loose on the shaft t, and is coupled thereto, to make a revolution, by a ratchet- and-pawl clutch operated from the space-key p. A brake is applied to the disc 120 of the sleeve, to prevent backward movement and prevent clattering of the clutch. The teeth on the rotating ratchet - wheel of the clutch are so proportioned that the insertion of the space - bar is timed so as to clear the cam 3 and type last inserted, by so proportioning the gearing 61, 62 that the cam 3 makes one revolution for an angular movement of the shaft t through a distance equal to a length of one of the teeth of the ratchet. The space-bar inserting-mechanism is adjusted in relation to the cam 3 by a movable plate 275 fixed by means of slots and screws to the plate a. The space-bar is held in its elevated position, during its insertion by the horizontal driver, by a spring-pressed pivoted plate above which the space-bar is lifted by the vertical slide. The rear ends of the space-bars, when in the holder c, are engaged and held in place by a set of bristles carried by a plate mounted adjustably on the bed-plate a. To prevent the line holder from moving too quickly while the types and space-bars are being assembled therein, a brake is applied in the slot 25 of the holder, the spring pressure of the brake being adjustable by a screw 58. When the line holder is filled, it is advanced down the track b by a sliding bar mounted to reciprocate in a groove in the inner face of the plate f. The slide-bar has a pivoted finger which engages behind the rear end of the line holder. A pin projects from the slide-bar through a slot in the plate f, and to it are attached two cords 167, 168. The cord 167 passes over guide-pulleys and is provided at its end with a weight, which acts to advance the holder c down the track. The upper cord 168 passes over and is attached to a pulley 178, on the shaft of which is a grooved snail cam, to which one end of another cord is attached at the larger diameter of the cam. The other end of this cord is attached to a crosshead on a piston-rod of an air-pressure cylinder, to or from which compressed air may be admitted or exhausted by a valve. When the key k is depressed, it operates the valve to exhaust the air and the valve is so held by a catch until the line is justified. At the end of its movement the line holder operates the catch, and the valve is moved by a spring into position to admit air to the cylinder, whereupon the piston is operated and, through the cords, cam, and pulley 178, returns the slide-bar to normal position, for advancing another holder c. The weight on the cord 167 is in two parts, one of which rests loosely on the other, and this loose weight engages and rests on a part of the frame when the line holder has cleared the spring- pressed brake, so that the holder is advanced during the rest of its movement by the other weight alone. The line holder is moved down the track by the cord 167 &c. until the projecting ends of the first space-bar are engaged by stops and arrest its movement with the first space-bar opposite the justifying and space-selecting mechanism. The line holder is held during each of its periods of rest, for justifying, by a slide 600 pressed towards it by a spring and moved away after each insertion of a space by a cam on a sleeve o on the justifying-shaft w. The parts for driving in the space-bars to space out the line are mounted on a slide 312, and consist of a plate 313 fixed to the slide 312 and having its front edge parallel to the line holder, a pivoted plate 315, and a vertical plate 325 fixed to the slide 312 in line'with the first, or arrested, space-bar. The end of the vertical plate 325 is a little in advance of the edge of the plate 313, so that the leading space-bar is driven farther into the line than the others. The plate 315 is pivoted to the plate 313 at 316 and is pressed forwards by a spring plunger 318, and the front edge of the plate which engages the space-bars is serrated. Its movement is limited by a pin and slot. When the slide 312 moves forwards, the space-bar arrested by the stops is driven in the greatest distance, and the others, progressively, to a less extent, as the plate 315 which engages them yields on its pivot and its edge takes up an inclined position. This space-bar driving operation is repeated for each space-bar as it is arrested, and the effect of the progressive driving is to produce a more-evenly spaced line. On the top of the vertical driver 325 is a spring plate 327 having a hook which engages the hook 20 and withdraws the front space from the line when the slide 312 moves back. The slide 312 is moved forwards, to drive in the space-bars, by a cord and weight, when permitted by a cam 339 engaging a roller 337 on the slide. The cam 339 is fixed on the sleeve o loose on the shaft w. The shaft w is driven by gearing from the shaft t. The sleeve o is coupled to the shaft w by a clutch operated by each spacebar, as it reaches the stops, through lever &c. mechanism. The permanent spaces are contained in channels in a case l, the end of which slides in guides 501 on an arm 502 pivoted to the framing at 503. The other end of the case l is moved, to bring the proper size space over the space-bar in the line, by an arm 506 pivoted at 507 to the slide 312 and having at its front end an adjusting-screw engaging a lug on the space rack. As the movement of the slide 312 is limited by the front space-bar, the space-rack is moved a distance varying with the distance this space-bar is driven through the line. The end space is ejected from the positioned compartment of the case l and driven down into the gap left in the line by the withdrawal of the space-bar, by a space-ejector 530 operated by a lever 511 moved down by a cord and weight and lifted by a cam on the sleeve o. The shape of this cam is such as to cause the lower bevelled end of the space-ejector 530 to enter the proper compartment of the space-case, and remain there until the arm 506 is lifted by a cam to free the space-case, whereupon the weighted cord 522 which moves the case to the left, as shown in Fig. 1, moves the case until the side of the compartment engages the flat side of the ejector, to bring the compartment exactly over the gap in the line. The cam then permits the lever 511 to move down and push the space down into the line, the lever being lifted by the cam immediately after it has driven down the space. The spaces are fed forwards in the channels by gravity and followers 519. To prevent the case from being swung too far to the left by the cord 522 and weight, an arm 531 on the case engages a hanger 532 pivoted on the bracket 344 in which the space ejector is guided. The holder c carries the justified line to the mouth of the galley u into which the line is pushed by a bunter 704 passing through the slot in the line holder. The bunter plates 704 are removably secured to the slide 702 by a cap plate 705 and screws, and are of such widths that they may be adjusted to the length of line to be composed. The slide 702 is operated by a crank-pin 709 and a rod 708 connected to the slide by a spring 719. The disc 710 carrying the crank-pin 709 is loose on the shaft w, and is coupled to it by a clutch arrangement operated by a lever 717 engaged by the end of the line holder. When the bunter is withdrawn, the empty line holder falls through an opening in the plate a to the lower track d, along which it is returned by one of the lugs 804 on an endless chain 800 on wheels 801, 802. The cha