Coater for both sides of traveling web
AssigneeBeloit Corporation
InventorClarence R. Zitzow
Life of this patent
Estimating the term…
Abstract
A method and mechanism for applying a liquid coating to both sides of a traveling web including guiding the traveling web along a substantially vertical path through a coating station applying coating continuously across the width of the web hydraulically and in one form the web traveling vertically upward and the excess coating falling downwardly and being directed away from the web, applying a uniform smoothing and distributing pressure to the surface of the coating by pressing first and second opposed thin flexible smoothing blades having a smooth inner surface with sufficient pressure so that the blades bend at an arc and the arc is tangent to the surface of the web.
Claims14
A mechanism for applying liquid coating to coat the surfaces of a continuous traveling web with a smooth coating finish comprising in combination:
- means guiding a traveling web along a coating path through a coating station;
- a coating applying means at said station applying a continuous layer of coating to each side of the traveling web;
- first and second opposed thin flexible smoothing blades positioned after the coating station in said coating path with each having a smooth continuous uniform smoothing surface facing the web so that said surface will have an arc of curvature as said blade is pressed toward the web;
- and first and second blade supporting and loading means positioned to respectively support the blades on each side of the web with the blades positioned so that said arc of curvature of the blades will be tangent to the planes of the surfaces of the traveling web as the blade loading means presses the blades toward each other.
A mechanism for applying liquid coating to coat the surfaces of a continuous traveling web with a smooth coating finish comprising in combination:
- means guiding a traveling web along a coating path through a coating station;
- first and second coating applicators respectively positioned at each side of the web with each applicator having a pressure coating opening extending continuously across the web;
- means for applying coating under pressure to each of said openings;
- said web passing through said coating station in a vertical up direction;
- a smooth surfaces shoe positioned immediately after said openings on each side of the web for distributing the coating;
- and opposed first and second thin flexible smoothing blades positioned above said openings extending in the direction of web travel for applying a smoothing pressure to the coating on the traveling web with the blades forming arcs tangent to the web surfaces.
A mechanism for applying liquid coating to coat the surfaces of a continuous traveling web with a smooth coating finish comprising in combination:
- vertically sequentially positioned coating applying and smoothing elements including applying means at each side of said web applying a continuous layer of coating to each side of the traveling web with excess coatingfalling downwardly;
- first opposed deflector means below said applying means extending in close running relationship with the web on each side thereof and deflecting falling coating away from the web;
- first and second opposed thin flexible smoothing blades pressed against the web above said applying means for smoothing the coating and forming arcs tangent to the surfaces of the belt;
- and a second deflector means positioned between the applying means and the smoothing blades in close running relationship with the web on each side thereof deflecting coating falling downwardly away from the surfaces of the traveling web.
Dependencies are inferred from the claim text.