Patent GB-183819-A (GB)
Title: Improvements in typographical composing and casting machines
IPC: B41B7/16
Filed: 1922-07-20
Abstract: 183,819. Mergenthaler Linotype Co., (Assignees of Kennedy, D. S.). July 27, 1921, [Convention date]. Assembling matrices; magazines; escapements; keyboards. -In machines adapted for composing in Japanese and other languages having a large number of characters, a fount of matrices is divided amongst several magazines from which the matrices are released by means of a single keyboard provided with indicator-mechanism which is adjustable simultaneously with each change of magazine. In the arrangement described, which is adapted for a fount of over two thousand characters, matrices X, Fig. 2a, having two characters in each vertical edge, are contained in four magazines A, Fig. 5. The released matrices pass through entrance throats C<1> Into a vertical raceway C, each throat except the top one being provided with a pivoted closing-flap C<2>. Before reaching the assembler, the matrices pass through an adjustable shoot having a plain and a rifled channel for reversing the matrices, if required. Means are also provided for as. sembling the matrices at either of two levels. The magazineescapements E are all actuated by a single set of reeds E' which act through levers E<2> pivoted on eccentricallymounted shafts F<12>, Fig. 6, which can be rocked so as to bring the levers E<2> into or out of engagement with the escapements E. The shafts F<12> are rocked bv means of arms F" and rods F<10> from levers F<8>, which are actuated by camyokes F<4> and key - levers F. Any lever F', when operated, is held down by a slidlever F<8>, when operated, is held down by a sliding locking-plate, the movement of which releases any previously-operated lever F<8>, so that only one magazine can be in use at a time. The magazine closing-flaps C<2> are simultaneously operated. The magazines are, as heretofore, wider than the keyboard, and rocking bails E<14> are employed to connect certain of the key-levers with their escapements. The indicator-mechan. ism comprises a series of sliding bars H, extending across the keyboard and connected togetgher at their ends. The bars bear index-characters h, Fig. 9, corresponding to the matrices in the four magazines, and are shifted relatively to the keys B by cams and rack-mechanism operated by the magazine-selecting keys F. The upper and lower characters of the matrices are represented on the bars H in corresponding positions, and the characters on the rear edges of the matrices are shaded. The index-characters preferably co-operate with arrows or pointers on the keys. In a modification, the indicator-bars are rotatable, and have characters on their four faces. The assembling and magazine-selecting devices are mounted in a swinging frame P turning about a vertical axis, the opening of the frame being caused to disconnect the power-mechanism of the keys F, and to restore the escapement-operating levers E<2>, closing-flaps C<2> and indicatorbars H to normal position. The operation of the keys F is at the same time prevented by a locking-rod. Distributing matrices.-The second elevator is operated through a link having a yielding connection to ensure the proper location of the elevator-bar. The reversed and unreversed matrices are first separated by mechanism of known form comprising a toothed bar L', Fig. 3, containing a gap beneath which is a selector-bridge L<3> that co-operates with the notches X<3> of the matrices. The two sets of matrices are delivered to shoots L<5>, L', one of which is rifled to reverse the matrices. Intermediate mechanism M of similar form sorts the matrices according to magazine by means of their notches X<4>. The matrices are delivered, by shoots M<5> to the distributors of the different magazines.