Patent GB-190611915-A (GB)
Title: Type Casting Machine.
Inventor: NUERNBERGER PHILIP GEORGE
Filed: 1906-05-22
Granted: 1906-11-15
Abstract: 11,915. Nuernbergrer, P. G., and Rettig, G. May 22. Type. - Relates to metal - casting machines especially adapted for casting type, and consists in means for adjusting, closing, and locking the mould and in a matrix-holder which enables the matrix to be readily changed. The mould is carried to and from the metal pot by a plate 21 pivoted on a shaft 22. The lower mould member 24, Fig. 5, is attached to a block 23 adjustably mounted on the plate 21. The upper mould member 29 is carried by a block 25 pivoted in the forked end of a yoke 26 which is secured to the block 23 by bolts 27. The mould as a whole is movable on the plate 21 by means of a screw 30 which passes through tne block 23. The upper block 25 is adjusted by means of a screw 33 to accommodate matrices of different sizes. The matrix-holder consists of a bracket 36 secured to the block 23 and carrying a sleeve 38 through which passes a second sleeve 39. The matrix D abuts against the head 42 of the sleeve 39, and a rib 50 on an extension of the sleeve enters a recess in the matrix. A spring-pressed rod 43, which may be retracted by hand, passes through the sleeve 39 and engages a recess in the base of the matrix. A cap-piece 52, carried by a lever 55, rests on the sleeve 39 between the end of the sleeve 38 and a flange 57. As the plate 21 moves into the casting position, a stop meets the lever 55, which then presses the matrix D against the mould. When the plate 21 moves back, a spring 40 retracts the sleeve 39 and lever 55. To enable the matrix to be changed, the cap-piece 52 is removed. The body of the matrix is held by a spring-pressed bolt 66 against a projection 67. The mould is opened and closed by means of a lever 69, Fig. 1, pivoted to the plate 21 and connected by a rod E to the table B of the machine. To the lever 69 is pivoted an arm 71 carrying an adjustable projection 73 which enters a recess in a lug 75 attached to the block 25. A spring- pressed pin 77 holds the projection 73 and lug 75 in engagement. The mould is locked when in the casting position by a vertically - sliding arm 82, Fig. 1, carrying a bolt 84 which bears on the top of the upper mould block 25. The arm 82 is reciprocated by a cam on the driving-shaft C. To the plate 21 is pivoted an arm 93 having a roller which bears against a cam on the shaft C. A screw passing through the arm 93 and abutting against the plate 21 enables the throw of the plate to be adjusted. The driving-shaft C may be intermittently driven to allow more time for cooling. For this purpose, a loose band pulley 101 is movable along the shaft against the action of a spring 119 by a lever 105. A roller carried by one arm of this lever is engaged by an incline on a disk 112 fast on the shaft C. A stop 118 on the pulley 101 normally engages a clutch-pin 116 on the disk 112. When the lever 105 is rocked by the incline, the parts 118, 116 are temporarily disengaged. A brake valve 120 is held against the disk 112 by a spring arm 121. The pump-plunger 125 is actuated by a cam 124 on the shaft C against the action of a spring 128. The usual cut-off valve is actuated by a cam 130.