Other

Frank L Porth

James A Black

Harry Russell Farwell

Stencilling apparatus having a trough type fluid scoop positioned behind, parallel to, and spaced from the stencilling squeegee, the scoop being pivotally shiftable through a scooping motion to scoop up excess fluid after the squeegee is elevated. The pivotal shifting is from a first scoop position wherein an edge of the scoop serves as a flow coater to a second position wherein the scoop retains the fluid scooped.

Squeegee and scooping flow coater

Stencilling apparatus having a trough-type fluid scoop ahead of the squeegee and pivotally shiftable in a rearward direction from a fluid dumping position, through a sweeping fluid scooping action adjacent the screen, to a fluid retention position in engagement with the squeegee.

Squeegee, ink scoop and flood blade assembly

Stencilling apparatus having a print and flow action relative to a combination squeegee and flow coater assembly, wherein excess stencilling fluid ahead of the squeegee can flow through the assembly, by flow over the squeegee into a control reservoir behind the squeegee and ahead of the trailing flow coater, and a controlled layer of the fluid flows from the reservoir beneath the lower edge of the flow coater onto the underlying stencil screen.

Stencilling apparatus with flow through print and flow action

A stencilling printer with a flow coater specially mounted to sense viscosity of stencil fluid flowing from a reservoir between the flow coater and the squeegee, the flow coater being shiftable and operably associated with a supply of viscosity-altering liquid for controllably altering the viscosity of stencil fluid in the reservoir.

Flood coater and squeegee with viscosity sensing and control

A tray suitable for providing a uniform coating of predetermined thickness on sheet material includes a generally V-shaped trough for dispensing a fluid contained therein through a plurality of apertures formed through the bottom of the trough and spaced along its length. Along the outer surface of the apex of the V-shaped trough, there is formed a channel communicating with the apertures and defining a pair of spaced continuous blades extending along the length of the trough and spanning the apertures. The lands of material between the apertures of the trough are tapered to a point on the side of the trough adjacent the channel to provide a uniform supply of coating material within the channel. As the trough is moved across the surface of a sheet to be coated, the trailing blade which is spaced at a desired height from the sheet material, provides a uniform coating of fluid to the sheet.

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Morley, MI, United States of America

Frank L Porth