Abrasive tool making process – material – or composition – Impregnating or coating an abrasive tool
Patent
1989-08-03
1990-10-09
Smith, James G.
Abrasive tool making process, material, or composition
Impregnating or coating an abrasive tool
51218P, 81418, B24B 4106
Patent
active
049612913
ABSTRACT:
A glass holder tool includes first and second elongate lever arms respectively including first and second handle portions at one end thereof, first and second jaw portions at the other end thereof, and central portions extending respectively between the handle portions and jaw portions. The lever arms are disposed in a crossing arrangement and pivoted at their central portions. The handle portions are disposed on a first side of the pivot and the jaw portions are disposed on a second side thereof opposite the first side. The lever arms are pivotable such that the jaw portions move relatively toward and away from each other in response to relative movement of the handle portions respectively toward and away from each other. Each jaw portion has a gripping plate attached to a free end thereof. One gripping plate extends from the first jaw portion at a first angle relative thereto such that, when the gripping plates are separated by a first predetermined distance, the second handle portion is offset from the one gripping plate toward the other gripping plate by a second predetermined distance.
REFERENCES:
patent: 1445908 (1923-02-01), Perkins
patent: 1612474 (1926-12-01), Strain
patent: 1686640 (1928-10-01), Pierce
patent: 3088252 (1963-05-01), Schmidt
patent: 3263535 (1966-08-01), Zurcher
patent: 3991635 (1976-11-01), Marone
patent: 4315447 (1982-02-01), Tartaglia
patent: 4461193 (1984-07-01), Gruber et al.
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