Patent GB-189711126-A (GB)
Title: Improvements in and relating to Ruling Machines.
Inventor: GRABER ELLIS
Filed: 1897-05-04
Granted: 1898-07-04
Abstract: 11,126. Graber, E., and Hepworth, L. May 4. Ruling-machines.-Relates to machines of the kind described in Specifications No. 11,858, A.D. 1894, and No. 5394, A.D. 1895. The pen beam A is rocked on its pivot a by means of a clutch mechanism A, described in Specification No. 5394, A.D. 1895, and connected by a lever 14 and link 16 to a pivoted arm 15 which is actuated by one or more cams 12 mounted upon a shaft 5. The shaft 5 is driven from a main shaft 1, which is fitted with a clutch 7 under the control of a forked lever 10, connected by means of a rocking shaft 9 and link 9<a> to a treadle-lever 8. The nipping-bar B of the means for controlling the flow of ink from the reservoirs to the pens is carried by a shaft connected by an arrangement of levers to a pivoted lever which is actuated by a cam adjustably mounted upon a disc fixed to the shaft 5 ; the bar B is capable of sliding along its shaft and out of engagement with the levers. The levers w for actuating the paper grippers w<4>, and stencil holders when such are used, are actuated by a rising and falling bar 54 operated by bell-crank levers 55, 56, and a cam 58, on the shaft 5. The reciprocating table X is provided with a hand-lever fitted with a gripping-device which can be thrown at will into engagement with an endless band passing over pulleys, one of which is mounted upon a shaft driven by means of a segmental rack connected adjustably to a roller which travels in the groove of a suitably-shaped cam on the shaft 5. Motion is imparted by means of this mechanism to the table X, which can be held in any desired position by actuating the gripping-device. The table X comprises a disc X', Fig. 16, mounted upon a frame 101 carrying two diametrically-opposite studs 102 which pass through radical slots 103<a> formed in a lower wheel-shaped frame 103 mounted concentrically about a vertical stud axle 107 supported by a foundation plate 106. This plate also carries an annular frame 108 engaging with the studs 102, and can be adjusted, when desired, so as to be eccentric with the vertical stud-axle 107 on the foundation plate. When the frame 108 is concentric with the stud-axle, the disc X<1> can be rotated about its centre so as to allow circles to be ruled, but when the frame 108 is eccentrically adjusted ellipses can be ruled. The sheets of paper can be held upon the table by hand, or preferably by means of clamps 115, carried by studs 114 secured adjustably by screws 114<a> to sleeves 116 which are periodically raised by means of a cam 120, central rod 119, and cross-bar 118, connected to the sleeves. The clamps are held down upon the paper by means of an arm 122, engaging with the bar 118, and attached to a spring-controlled axle 121. The disc X' is rotated by bevel gearing 105, 82, and toothed wheels 79, 78. The axle 80 carries a brake drum 83 which is acted upon by a brake band 88 actuated by means of a cam 89. The pen slide D, Fig. 2, is transversed by means of a special mechanism when wavy or sinuous lines and irregularly-shaped figures are to be ruled.