Patent GB-168912-A (GB)
Title: Improvements in typographical composing machines
IPC: B41B7/16
Filed: 1921-09-09
Abstract: 168,912. Mergenthaler Linotype Co., (Assignees of Rogers, J. R.). Sept. 10, 1920,. [Convention date]. Assembling and distributing matrices ; magazines; escapements ; keyboards.-Relates to. machines of the kind having supplementary magazines arranged alongside or " in tandem " with the main magazines. (1) Each of the supplementary magazines C, Fig. 1, four of which are employed in the arrangement described, has a separate conveyer-belt F, the lowest belt being extended to the left so as to fcrm a continuation of the main assembler-belt A'. The upper belts communicate with the lowest through conductors G. The space between the lowest belt F and the belt A<3> is bridged by a curved throat G' containing a guiding leaf-spring G<5>. The conductors G contain similar springs G<1>, G<2>, to guide and cushion the matrices. The frame. M carrying the assembling- devices of the supplementary magazines turns about a. pivot M<1> at the right of the machine so that it does not interfere with the mainassembling-mechanism, which turns about a pivot N'. The driving-mechanism of the belts F is concentric with the pivot M'. (2) Each of the auxiliary founts is divided between two supplementary magazines, the auxiliary keyboard H being connected to either pair of magazines as required. The channels and escapements of the two magazines of a pair are staggered, and all of the escapements are operated by a single set of reeds H<2> acting through levers H', Fig. 3, which have adjustable pivots so that the upper or lower pair of magazines can be put out of action. The levers H<1> have open bearing-notches with straight rear walls h, Fig. 5, and the pivots J are flattened or recessed at one side so that, by rotation of the pivots, the levers H<1> are moved into and out of engagement with the escapements C<2>. The rotation of the pivots is effected by rack-bars J<3> operated by two shiftkeys J<4>which are connected together. The esca.pement-reeds H<2> can be locked by means of a sliding bar K which is caused by cam-slots and guiding-pins to move edgeways into notches in the reeds. (3) The two magazines containing each fount are connected together as heretofore by transverse bolts C<9>, Fig. 3, so as to form a single structure, and are provided with transverse bars C<5>, the projecting ends of which slide in grooves in the machine frame. The magazines are held in place by retractable locking-bars D which are engaged by fore-and-aft bars C' on the underside of the magazines. (4) The matrices of the two parts of each fount have the same toothcombinations, and are distinguished by differently located notches which cause them to be delivered to different distributor-bars. The distributorbars for the supplementary magazines are continuous with those for the main magazines, and the bars for the magazines which contain matrices of the same fount have the same toothcombinations arranged in staggered relation to correspond with the arrangement of the magazine-channels. (5) The distributor.frame can be raised by means of a hand-lerver and a link, the lever being arranged to pass the dead centre so as to lock the frame in the raised position.