Abrasive tool making process – material – or composition – With carbohydrate or reaction product thereof
Patent
1979-12-07
1981-07-21
Whitehead, Harold D.
Abrasive tool making process, material, or composition
With carbohydrate or reaction product thereof
51390, 51391, 15210A, B24D 1504
Patent
active
042791030
ABSTRACT:
A block-like body including a cap plate and a pair of rigid plates of a common width and of different lengths substantially registered with said cap plate and disposed in mutually superimposed relation for defining a pair of adjacently related working surfaces arranged in mutually stepped alignment, and a sanding pad arranged in substantially covering relation with each of the working surfaces, each pad being characterized by a resiliently backed, rigidly supported strip of abrasively coated, flexible material having at least one end secured between a pair of said plates and a screw extended through said plates for releasably securing the plates against displacement relative to one another.
REFERENCES:
patent: 103717 (1870-05-01), Chapman
patent: 1062214 (1913-05-01), Bergman
patent: 1145134 (1915-07-01), Fowler
patent: 1455559 (1923-05-01), Wright et al.
patent: 1562415 (1925-11-01), Newman
patent: 1570177 (1926-01-01), Pointer
patent: 2036107 (1936-03-01), Thomas
patent: 2400928 (1946-05-01), Hein
patent: 3975868 (1976-08-01), Botimer
Adolphson K. Bradford
Whitehead Harold D.
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