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2 012 816

(13)

(51)

IPC

(21) (22)

Application

4948353/03, 1991-06-24

(22)

Actual filing date

1991-06-24

(45)

Published

1994-05-15

(72)

Inventor

Gorodilov N.N.Bobrov G.N.

(73)

Holder

Vsesojuznyj Nauchno-Issledovatel'Skij I Proektno-Konstruktorskij Ugol'Nyj Institut

SELF-ADVANCING DRIFT SUPPORT Russian patent published in 1994 - IPC

Abstract RU 2012816 C1

FIELD: mining. SUBSTANCE: drift support has units of extensible cappings and hydraulic props. The latter are furnished with guides on which support advancing mechanism is mounted. Its conveyer is installed in upper part with front and rear overhangs for value not less than step of support (support unit) spacing. Guide may be attached to casing of hydraulic prop with its one end for turning through 180 deg. round its axle of attachment to casing. EFFECT: higher efficiency. 2 cl, 2 dwg

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RU 2 012 816 C1

Authors

Gorodilov N.N.

Bobrov G.N.

Dates

1994-05-15—Published

1991-06-24—Filed