Lubricating apparatus

Apparatus for applying a lubricating material to a fast moving strip comprising

• means forming a vertical deposition chamber having smooth and heated side walls, and openings at the top and bottom of the deposition chamber at its central plane,
• second means to move the strip rapidly through the deposition chamber through the openings along its central plane,
• sources forming a plurality of lubricating particles by the use of compressed gas and admitting the particles to the deposition chamber through openings in each side of the deposition chamber intermediate its top and bottom, said side walls being substantially smooth at said openings, the sources of lubricating particles including a plurality of atomizers, each atomizer being formed in a circular block by providing the circular block with a plurality of bores adjacent its periphery, and providing in each bore a nozzle-forming member and an atomizing orifice member, said block having a central passageway and a plurality of radial passageways intersecting the central passageway and each of said bores between said nozzle-forming member and atomizing orifice member,
• third means adjacent the openings at the top and bottom of the deposition chamber to balance the pressure of the atmosphere internally within the deposition chamber so that the gas used in forming lubricating particles flows from the chamber only through the opening at its bottom, and
• electrostatic electrode means supported within said deposition chamber on each side of its central plane, said electrode means being connected with a source of high electrical potential.

Apparatus for applying a lubricating material to a fast moving strip comprising

• means forming a vertical deposition chamber having openings at the top and bottom of the deposition chamber at its central plane,
• second means to move the strip rapidly through the deposition chamber through the openings along its central plane from top to bottom,
• a source forming lubricating particles by the use of compressed gas in each side of the deposition chamber intermediate its top and bottom,
• third means adjacent the openings at the top and bottom of the deposition chamber to balance the pressure of the atmosphere internally within the deposition chamber so that the gas used in forming lubricating particles flows from the chamber only through the opening at its bottom, said third means including a duct work adjacent the opening at the top of the deposition chamber at each side of the strip connected with gas pressure-creating means to pressurize the top opening at each side of the strip, said duct work forming a nozzle-like opening on each side of the strip with the plane of the nozzle-like opening forming an angle of about 70.degree. with respect to the strip as it enters the chamber, said duct work including internal partitions to maintain a uniform gas pressure across the opening, and
• electrostatic electrode means supported within said deposition chamber on each side of its central plane, said electrode means being connected with a source of high electrical potential.