Patent GB-189815345-A (GB)
Title: Improvements in Type Casting and Composing Apparatus.
Inventor: GILBERT-STRINGER HENRY JAMES S
Filed: 1898-07-12
Granted: 1899-06-24
Abstract: 15,345. Gilbert-Stringer, H. J. S. July 12. Monotype and l i k e machines.- The keys k are arranged in two sets, one for operation by each hand, and the keys of each set operate arms k<4> connected with arms k<5> which prevent the depression of a key in both sets. Two of the keys in each set operate to move the matrix segment M longitudinally of its pivot shaft m, and the others operate to rotate it a b o u t its pivot. The key stems engage and depress pins k<11> in bosses k<10> on horizontallysliding rods k<6>. The depressed pin or pins k<11> are engaged by the ends of arms p pivoted on a slide P reciprocated by a rod p<6>, lever p<5>, rods p<4>, p<3>, and eccentric p<2>. As the slide P moves forward, it moves forward the rod or rods k<6> which have their pins k<11> depressed. On the ends of the rods k<6> are heads u having inclines some of which engage rods fixed on the matrix quadrant M parallel to the axis m, and thereby rotate it on its pivot and bring the required transverse row of matrices opposite the mould A. Inclines on the other rods k<6> operate to move the segment M on its pivot shaft to bring the proper matrix in the transverse rows into position opposite the end of the mould cavity. The keys of one set rotate the segment in one direction, from its normal central position, and the keys of the other set rotate it in the opposite direction. Inclined plates k<13> raise the depressed keys as the rods k<6> move forward ; and a piece p<8> on the slide P returns the rods k<6> by engaging collars k<7> thereon. Each transverse row of matrices is formed on a matrix bar, movable radially to a small extent in the segment M, and retracted by springs m<6>. When the matrix is positioned it is registered by conical pins q<2> which enter holes in its rear side, and is then pressed up to the mould by the operation of a sliding bar q<1>, lever q, and cam Q. The, pins q<2> are on the sliding bar q<1>. The lower side of the mould is formed by the upper end of a plunger a, sliding between two cheeks which form the sides of the mould. The plunger is withdrawn after each cast by a cam &c., and its upward movement is limited so as to adjust the size of the mould to the size required by the particular character to be cast, by means of a projection a<5> on the plunger a which engages the side of the matrix bar, the latter being stepped or formed to correspond with the characters. The upper side of the matrix is at this time supported by a slide a<6>. After the cast the matrix is withdrawn and the type is lifted by the plunger a, a sliding plate which forms the top of the mould having been first withdrawn. The type is carried, by this sliding plate, over a vertical plunger by which it is lifted into a line channel. Compressible spaces are inserted by operating a key, which operates to move one of them over the vertical plunger which lifts the types. The line, when complete and justified by compression, is pushed laterally into a galley by a sliding pusher, a rule which separates the line from the types in the galley being simultaneously withdrawn. The metal from the pot is injected into the mould by a pump, the piston t of which is depressed by a spring and raised by a lever t<4>, rod t<3>, and cam t<5>. A valve t<1>, operated by a spring and by a cam t<9> &c., admits metal to the pump when the plunger t rises.