With the platen's running along in their design, we had to start thinking about the all important method of exerting pressure.  In previous drawings, Maurice had illustrated a screw-top press, as with the turned wooden screw used in Gutenberg presses.  However, although this would be possible to make, Maurice came up with the above idea.  This method is beautiful not only because of the ease of use for the printer, but also because this type of ever is capable of exerting huge amounts of pressure, possibly up to 1200psi.  With the long handle, the amount of force required by the printer to be able to exert the high pressure is minimal.  Also, unlike the Albion and similar relief presses, where the handle is pulled along the horizontal plane, this is more like the mechanical direct litho presses, where the handle is pulled in the vertical plane. Note also the holes along the lever.  This allows the pressure to be increased or decreased, depending on which hole the connector is pinned into.  It truly is a wonderful design by Maurice.