Patent GB-328884-A (GB)
Title: Improvements in typographical composing machines
IPC: B41B11/06
Filed: 1929-08-12
Abstract: 328,884. Hart, H., (Mergenthaler Linotype Co.). Aug. 12, 1929. Distributing matrices; magazines. - In machines having a number of pivotally - mounted magazines, which are in constant operative relation with distributors arranged one above another, and are shiftable in relation to a single assembler-entrance, the magazines and their entrances are mounted in a common shift-frame, movable about an axis located to the rear of, and intermediate between the distributors. The magazineentrances are so arranged that the upper one leads from the upper distributor to the upper magazine, and the lower one leads from the lower distributor to the lower magazine, the entrances being separately pivoted, so that either may be swung down out of operative position independently of the other. Auxiliary magazines, having their entrances similarly mounted, are arranged alongside of the main magazines, and means is provided for stopping the distributor when any of the magazineentrances is moved out of operative position. In one arrangement, two main magazines A, Fig. 1, and two auxiliary magazines A<1>, Fig. 2, are arranged in tandem, and co-operate with two distributors E, E', the upper of which is provided with a fount-separator. The entrances D<1>, D<3> of the upper main and auxiliary magazines are arranged in front of the lower distributor E<1>, and are so mounted that they can be moved rearwards between the two distributors without disturbance of the lower entrances D<2>. D<4>. The upper main entrance D<1>, Fig. 1, is carried by arms D<5> pivoted to extensions of the lower magazine base-frame A<2>. The upper auxiliary entrance D<3>, Fig. 2, is carried by arms D<7> pivoted to fixed brackets O<2> on the distributorframe O. Each upper entrance has pivoted to it a weighted tray D<8>, to catch any matrices that fall from it when in inverted position. The lower entrances D<2>, D<4> are pivoted to the lower magazine base-frames so that they can be swung down without interference with the upper entrances. The auxiliary magazines are mounted to swing about independent axes A<5>, A<6>, Fig. 2, located immediately below the distributors. The main magazines, however, are mounted in a common shift frame formed by the upper and lower baseframes A<2>, Fig. 1, which are connected by a pivot a. This shift-frame is mounted at its upper end on trunnions A<8>, and can be swung for change of magazine by means of toggle-levers operated by a hand-lever K<3>. To minimise the movement of the upper ends of the entrances, the trunnions A<8> are mounted in open bearings, and are slightly shifted during change of magazine by the action of links O<6>, which connect the shift-frame to the fixed brackets O<2>. Distributor stop-mechanism. The distributorscrews are driven through a clutch, which can be disengaged by an overbalanced trip-finger G<8>, Fig. 6, normally held out of action by a bellcrank lever J. The lever J is normally supponed by devices including a pair of aligned slide-rods J<5>, J<6>, carried on the entrance of the upper auxiliary magazine. Intermediate between the rods J<5>, J<6> is a slide J<11>, carried by the entrance of the lower auxiliary magazine. The rod J<5> is urged to the right by a spring J<1>, and the rod J<6> is normally supported by an abutment in the form of a dog J<12>. Movement of either of the entrances thus causes the withdrawal of support from the lever J, so that the distributor-clutch is disengaged. The clutch is also controlled by the main magazine-entrances through the medium of a slide J<13>, which is mounted on the upper entrance, and is normally interposed between the dog J<12> and a plate J<14> carried by the lower entrance. Movement of either main entrance thus permits endwise movement of the rods J<5>, J<6>, and effects the opening of the clutch.