Patent GB-190215798-A (GB)
Title: Machine for Producing Stereotype and Electrotype Matrixes and Printing Blocks.
Inventor: KRAUS ALFRED
Filed: 1902-07-15
Granted: 1903-06-04
Abstract: 15,798. Kraus, A., and Collins, N. July 15. Stereotype matrix and like machines.-Relates to a machine for composing lines of relief or intaglio dies and impressing them to form matrices or printing-surfaces. Fig. 1 shows a plan, and Fig. 3 a section on the line 3-3. The keys A are on levers a, pivoted at 1, operating to raiso detents 2 into position to engage studs b on a rotating barrel B, and stop the latter. The pitch of the studs b corresponds to alternate types on the type-discs D, and the detents 2 move through a guide on a frame 3 pivoted at 4, and movable by a shift key S so as to stop the barrel B and discs D for capitals or " upper case " types. The frame 3 is connected to one arm of a toggle 6 connected by a link 8 to the lever 9 of the shift key S. The barrel B is geared frictionally to its continuously-revolving shaft C, and is geared positively, by wheels 19, 20 to the shaft of the type-discs D. The barrel B is geared to its shaft C by reversible gearings 15, 16, 17 and clutch 10, which latter may be moved by a hand-lever into engagement with a cone 13 on either of the wheels 15, 16. The wheel 15 is loose on the sleeve 12, and the wheel 16 is fast on the shaft C, both wheels gearing with the wheel 17. After each impression from an assembled line on the discs D, the clutch 10 is operated to reverse the movement of the barrel B to return the discs D to normal alignment. The type-discs are successively brought to, and left in, the composed position by a spline or key 21 passing through keyways in the discs D and in the sleeve 23 on which the discs are loosely mounted. The spline 21 rotates with the wheel 20 and shaft E, but is movable longitudinally to release the discs D in succession and permit them to be retained in the positions in which they are stopped by the key mechanism &c. The spline is attached to a collar having a flange engaging a collar on a sliding carriage 29, 30, having a nut piece normally engaging a screw G on a sleeve g loose on the shaft E. The successive movements of the spline are effected by the depression of a feed-key F, which raises a rod 40 and pawl 38 so as to cause a mutilated gear 37, on the screw sleeve g, to come into gear with a wheel 36 driven by gears 35, 34 from the shaft C. The sleeve g is thus driven through a revolution at each depression of the key F, and releases the last set disc D. The carriage 30 slides on the screw sleeve g and on rods 31. Its nut piece is movable by a lever 66 to disengage it from the screw for the return of the carriage. The discs are retained in their set positions by a bar 42, which moves with the carriage 30 and engages between two type-arms of each of the discs. This bar 42 is fixed to a frame 44, and passes through a disc 25 fixed on a sleeve 45, while the frame 44 can slide along the sleeve and is moved by a forked arm projecting down from the carriage 30. The disc 25 and frame 44 are retained in normal position by a jointed lever 48, and may be rotated by this lever, to rotate the discs to bring the composed line to the impression position, and to simultaneously justify the line. The justification is effected by rods 49 rotatable on their axes in the frame 44. The type-discs are each formed with a series of flexible ar us 121, Figs. 7, 8, and 10, carrying type and space blo ks 120. Some of the space blocks 51 are provided with justifyting-screws 50 having square holes through which the rods 49 pass as the line is being composed. When the frame 44 is turned, the rods 44 are rotated on their axes by pinions 53 thereon engaging a wheel 54. This screws out the screws 50, pressing the type-blocks of the various words together, and spreading out the line between the confining-discs 24, 25. The wheel 54 is prevented from rotating by a bar on a spring- held arm, and, when the justification is completed, the wheel 54 and arm rotate with the frame 44. The type-blocks 120 may be mounted to slide on the arms 121, so that the composed line may be projected beyond the normal periphery, and this projection may be effected by a bar 130 carried by the slide 30, passing into slots 131 in the typeblocks. The bar 130 is bevelled at 132, and the slots are also bevelled so that the blocks are lifted successively. The blocks may be returned to and retained in normal position by annular springs 122, 123, engaging shoulders 126, 127 on alternate blocks. The discs D each carry a spring pawl engaging a notch in the sleeve 23, and, when the movement of the drum and sleeve are reversed, this notch engages the pawls and brings the discs all into alignment. The impression is preferably made in strips K of matrix material held between bars alternately attached to side pieces 118, 119 in carriage H, the strips resting on a plate h. The carriage H slides on bars 90 of a verticallymovable frame raised to impress the strips on to the line of dies, by eccentrics on two shafts 92, 93, connected to move in unison by arms 96 and a rod 95, or by an endless chain. The raisiugmechanism is put in operation by depressing a key I, which turns the shafts 92, 93 sufficiently to put a mutilated gear on the shaft 93 into gear with driving-wheels 103. The carriage H is fed line by line by a rack engaged by a pawl pivoted on an eccentric on the shaft 93. The feed-pawl and a detent pawl may be simultaneously disengaged from the rack by operating a key lever M, to permit the carriage to be returned to initial position by a spring drum 109. To avoid a space at the end of a line when the last word does not end at the last disc of the set, the superfluous disc or discs are moved beyond the end of the line by operating a lever 70 which moves the disc 24 away from the disc 25. The lever is secured in any of its several positions by a pin 74 engaging holes 75, 76, &c. To compose a blank the space key may be retained by a pivoted latch 81, and the feet-key F repeatedly operated. The set of discs D is made removable for replacing by another set &c, by mountmg the end bearing 69 of the shaft E removable from the framing.