Plastic and nonmetallic article shaping or treating: processes – Mechanical shaping or molding to form or reform shaped article – To produce composite – plural part or multilayered article
Patent
1977-04-28
1979-01-23
Smith, Ronald H.
Plastic and nonmetallic article shaping or treating: processes
Mechanical shaping or molding to form or reform shaped article
To produce composite, plural part or multilayered article
52515, 52727, 264263, 264269, 264277, 425458, B32B 3106
Patent
active
041361474
ABSTRACT:
The method of applying a coating of a desired uniform thickness of a spreadable material, such as a cementitious fire-proofing material, to an elongate structural member (e.g., an I-beam) comprises applying a plurality of preformed spacers to the beam, the spacers being of a material compatible with the fire-proofing material and being spaced at intervals along the length of the beam. A pair of spaced guide bars are removably secured to the beam with the guide bars extending lengthwise of the beam and being generally parallel to one another. The guide bars are supported by the spacers so as to be spaced from the beam and each of the guide bars has a guide surface thereon. The spreadable fire-proofing material is applied to the beam in a quantity somewhat greater than is needed to provide the coating of desired uniform thickness and then a tool, such as a darby, is run along the guide surfaces of the guide bars to strike off the spreadable material to form the coating of the desired uniform thickness, to cause the spreadable material to flow into the spaces between the beam and the guide bars as the tool strikes off the spreadable material, and to cause the spreadable material to flow at least partially around the spacers. Finally, the guide bars are removed from the beam.
The tool especially adapted for use with the method of this invention is also disclosed.
REFERENCES:
patent: 772597 (1904-10-01), Williamson
patent: 1762254 (1930-06-01), Zarba
Carboline Company
Lawrence Evan K.
Smith Ronald H.
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