Title:
PLANE GRINDING DEVICE FOR TIGHT RING IN GATE VALVE
Document Type and Number:
Japanese Patent JPS5265399
Kind Code:
A
Abstract:
In an apparatus for grinding plane, annular surfaces such as for lapping faying rings of gate valves, cylindrical grinding heads carrying grinding paper detachably adhering thereto, are mounted for free individual rotation in a rotating disk, so that by friction on the annular surface they rotate like planet wheels. The disk is detachably mounted on a spherical head on a shaft and connected thereto by a rockable diametrical entraining pin, and the shaft is connected to a driving shaft by sprocket wheels and chain.
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Inventors:
PAA JIENSEN
Application Number:
JP13964076A
Publication Date:
May 30, 1977
Filing Date:
November 22, 1976
Export Citation:
Assignee:
JENSEN PER
SOLBERG RINO
SOLBERG RINO
International Classes:
B24B15/02; (IPC1-7): B24B15/00; F16K3/02
Domestic Patent References:
| JPS5029196U | 1975-04-02 | |||
| JPS5037988U | 1975-04-19 | |||
| JPS4893489U | 1973-11-08 |