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2 061 870

(13)

C1

(51)

IPC

(21) (22)

Application

93047211/03, 1993-10-11

(22)

Actual filing date

1993-10-11

(45)

Published

1996-06-10

(72)

Inventor

Savin V.A.Erokhin A.I.

(73)

Holder

Aktsionernoe Obshchestvo Otkrytogo Tipa Po Dobyche I Pererabotke Uglja

UNIFIED JOINING TIMBERING Russian patent published in 1996 - IPC

Abstract RU 2061870 C1

FIELD: maintaining gallery roof of arched and trapezoid shape in the area of joining to stope. SUBSTANCE: joining timbering includes two sections interconnected through motion hydraulic jacks. The sections have hydraulic uprights, upper beams and cross bars and corner hydraulic cylinders. Hydraulic uprights are enclosed in rotary cantilevers related through cylindrical axles to cross bars and corner hydraulic cylinders. Upper beams of outer section may be connected to its cross bars through cylindrical hinges and may be turned around and stopped in preset position. EFFECT: high reliability. 2 cl, 3 dwg

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RU 2 061 870 C1

Authors

Savin V.A.

Erokhin A.I.

Dates

1996-06-10—Published

1993-10-11—Filed

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