Apparatus for making high-pressure ports in closed hulls

Details Apparatus for making high-pressure ports in closed hulls Apparatus for making high-pressure ports in closed hulls

1975-08-04

1976-12-28

Smith, Al Lawrence

Abrasive tool making process, material, or composition

Impregnating or coating an abrasive tool

B24B 2308

Patent

active

039993310

ABSTRACT:
An in situ refurbishing system for viewing ports aboard pressure-tight hu includes a guide shaped to cooperate with the viewing port and provide a datum axis centered thereon. An axle is rotatably supported by the guide and carries a lapping tool in polishing engagement with the port. Centering guides permit adjustment of the datum axis and pressure means exert a uniform engagement pressure with the lapping tool such that optical quality surfaces may be obtained without extensive dismantling and use of shipyard time.

REFERENCES:
patent: 692459 (1902-02-01), Langlois
patent: 935291 (1909-09-01), Boenig
patent: 1278607 (1918-09-01), De Forest
patent: 1371484 (1921-03-01), Howard
patent: 1435502 (1922-11-01), Sager
patent: 2180640 (1939-11-01), Mikalson
patent: 2491565 (1949-12-01), Johnson
patent: 2908120 (1959-10-01), Jensen

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