Metal tools and implements – making – Tool sharpeners – Cutting
Patent
1994-03-29
1995-07-11
Payer, Hwei Siu
Metal tools and implements, making
Tool sharpeners
Cutting
76 86, 451557, B24B 354
Patent
active
054310695
ABSTRACT:
A sheet metal edging file comprises a frame with a base and two side arms which extend upwardly. The side arms are formed in a generally planar configuration with an inner surface, an outer surface, parallel short end edges and parallel long side edges. The side arms also have an upper region and a lower region, with one short side of each side arm being contiguous with the upper surface of the base. The upper region of each side arm also includes a centrally located aperture extending therethrough. The plane of the side arms are angled at an acute angle with respect to the axis of the base. Two file wheels are formed in a planar, generally circular configuration with a centrally located circular aperture extending therethrough. Each wheel has an inner surface and an outer surface and includes a plurality of blades on its inner surface. The blades extend radially outward from the central aperture to a location proximate to its outer edge. The wheels are positioned to oppose each other at an acute angle. Two axles are formed as long cylindrical members adapted to couple the file wheels to the frame through their respective centrally located circular apertures. A handle is formed in a generally cylindrical configuration with an upper section coupled to the frame and a lower section adapted to be gripped by a user.
REFERENCES:
patent: 320899 (1885-06-01), Tucker
patent: 1055739 (1913-03-01), Haas
patent: 1259136 (1918-03-01), Rogers
patent: 1851012 (1932-03-01), Keil
patent: 5029417 (1991-07-01), Keller
patent: 5040435 (1991-08-01), Millman
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