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2 021 525

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(51)

IPC

(21) (22)

Application

4937542/03, 1991-04-04

(22)

Actual filing date

1991-04-04

(45)

Published

1994-10-15

(72)

Inventor

Parfenov V.E.Zel'Tser Ju.G.Potapenko V.A.Tsyplakov B.V.Dubovskij Ju.P.Remezov A.V.Starostenko G.I.Dubrovskij V.I.Liskovets S.A.Shkaranov G.S.

(73)

Holder

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

END UNIT OF POWERED SUPPORT Russian patent published in 1994 - IPC

Abstract RU 2021525 C1

FIELD: underground mineral mining. SUBSTANCE: additional support is made in form of girder including capping installed on hydraulic props and located above outer parts of cross-pieces for longitudinal motion between brackets. Brackets are connected on top of cross- pieces on both sides of capping. The other part of cross-pieces is arranged in guides furnished at lower part of roofing. Roofing is made elongated towards caving and extends in plan to guard edge. Cross-pieces are made telescopic and have rams connected with their one ends to them. The other ends of the rams are connected with roofing. Installed between capping and cross-piece is additional ram which may be located inside cross-piece. EFFECT: higher efficiency. 2 cl, 5 dwg

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RU 2 021 525 C1

Authors

Parfenov V.E.

Zel'Tser Ju.G.

Potapenko V.A.

Tsyplakov B.V.

Dubovskij Ju.P.

Remezov A.V.

Starostenko G.I.

Dubrovskij V.I.

Liskovets S.A.

Shkaranov G.S.

Dates

1994-10-15—Published

1991-04-04—Filed