U-shaped screw transfer means in immersion coating apparatus
AssigneeWheatland Tube Company
InventorJoseph T. Saloom
Life of this patent
Estimating the term…
Abstract
Apparatus and method automatically for moving elongated objects into and out of a hot dip galvanizing kettle or the like includes a screw feed conveyor system that continually maintains control over the elongated objects while feeding and removing the objects at a uniform predetermined rate. The screw feed conveyor system includes at least two generally U-shape screws which are rotated about their axes to feed elongated objects horizontally placed thereon at opposed diametrical sides thereof through the galvanizing kettle, said screws, if desired, having flights with selectively varying pitches to tilt the objects for entry into the kettle and drag out from the kettle.
Claims15
An apparatus for moving elongated objects through a liquid coating material contained in a reservoir comprising at least two spaced apart generally vertically oriented, U-shape screws which are partially submerged in the coating material, means to convey the elongated objects to said screws for support thereby, means simultaneously to rotate said screws about their axes to move said elongated objects through said coating material means associated with said U-shaped screws to maintain the elongated objects in driving contact with the screw, and means to remove the coated elongated objects from said screws.
An automatic conveying apparatus for moving elongated objects through a liquid coating bath comprising rotatable, generally vertically oriented U-shape screw means operative to move the elongated objects carried thereby through said bath, and means in said bath to guide the elongated objects carried by said screw means through said bath.
Dependencies are inferred from the claim text.