Reinforced hose means for biasing a squeegee Patent #: 4138943
ApplicationNo. 06/061659 filed on 07/30/1979
US Classes:101/124, Stationary-inker machines101/119Internal inker
ExaminersPrimary: Sewell, Paul T.
Assistant: Pearson, C. A.
Attorney, Agent or Firm
International ClassesB41F 15/14 (20060101)
B41F 15/44 (20060101)
AbstractFor use in a silk screen printing machine including an impression cylinder and a doctor-blade mounted parallel to the surface of the impression cylinder for movement relative thereto; a doctor-blade supported at opposite axial ends respectively by a pair of fluid pressure operated piston and cylinder devices and flow control valves are disposed between a source of pressurized fluid and the devices respectively for raising and lowering the doctor-blade relative to the impression cylinder. A cam mounted for rotation with the impression cylinder coacts with a switch to operate the control valves.Combined with the above are a pair of additional piston and cylinder devices coupled to said doctor-blade support, and associated control valves for controlling the pressure or force applied by the doctor-blade to the surface of the impression roller.