Separable ink supply trough for rotary printing press

Separable ink supply trough structure for a rotary printing machine having

• a lower support portion (3) having an upper inclined support surface;
• an ink transfer roller (6);
• a doctor blade (5) located on the inclined support surface to adjust the amount of ink being supplied to the transfer roller;
• means (8) for controlling the position of the doctor blade with respect to the transfer roller (6) secured to the lower portion;
• an upper portion (2) including a bottom wall and two wall leg portions (11,12) shaped to define an ink trough having an inclined bottom wall (13),
• said ink trough being formed with an outlet (4) formed by non-parallel surfaces which are fixed with respect to each other at the lowest corner of said upper portion, said surfaces being the end faces of the bottom wall and one leg portion (12) of said upper portion which is adjacent said corner, said outlet tapering towards a narrow mouth and, in cross section, being essentially funnel-shaped, said outlet being directed towards and positioned adjacent the transfer roller at the lowermost edge of the bottom wall and located above the doctor blade;
• the upper portion (2) being removably secured to the lower portion;
• the doctor blade being positioned between said upper and lower portions, carried by one of said portions and extending at least in part across said outlet to direct the flow of ink from the outlet to the transfer roller and control the quantity of ink being applied on the roller;
• and a closure element (9) located within said ink trough selectively movable between said non-parallel surfaces of said outlet between blocking and unblocking positions of said outlet, to permit closing of the opening in the ink trough and removal thereof independently of the positions of the doctor blade.