SU878946A2 - Metallic closed yielding roof support - Google Patents

Metallic closed yielding roof support Download PDF

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Publication number
SU878946A2
SU878946A2 SU792733001A SU2733001A SU878946A2 SU 878946 A2 SU878946 A2 SU 878946A2 SU 792733001 A SU792733001 A SU 792733001A SU 2733001 A SU2733001 A SU 2733001A SU 878946 A2 SU878946 A2 SU 878946A2
Authority
SU
USSR - Soviet Union
Prior art keywords
roof support
metallic closed
yielding roof
closed yielding
metallic
Prior art date
Application number
SU792733001A
Other languages
Russian (ru)
Inventor
Валентин Николаевич Каретников
Николай Ильич Прохоров
Борис Иванович Синкевич
Анатолий Васильевич Степеннов
Григорий Семенович Фридман
Original Assignee
Тульский Политехнический Институт
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Тульский Политехнический Институт filed Critical Тульский Политехнический Институт
Priority to SU792733001A priority Critical patent/SU878946A2/en
Application granted granted Critical
Publication of SU878946A2 publication Critical patent/SU878946A2/en

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  • Structure Of Emergency Protection For Nuclear Reactors (AREA)

Description

..

5252

Claims (1)

Формула изобретенияClaim Металлическая замкнутая податливая крепь по авт. св. № 709816, отличающаяся тем, что, с целью повышения надежности соединения боковых элементов с лежнем при комбайновой проходке, упоры выполнены Ш-образной формы.The metal closed pliable support on a bus. St. No. 709816, characterized in that, in order to increase the reliability of the connection of the side elements with the lying during the combine driving, the stops are made in the shape of a w-shaped. Источники-информации, принятые во внимание при экспертизеSources of information taken into account in the examination ί. Авторское свидетельство СССР № 709816. кл. Е 21D 11/14. 1976 (прототип).ί. USSR copyright certificate No. 709816. cl. E 21D 11/14. 1976 (prototype).
SU792733001A 1979-03-05 1979-03-05 Metallic closed yielding roof support SU878946A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU792733001A SU878946A2 (en) 1979-03-05 1979-03-05 Metallic closed yielding roof support

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU792733001A SU878946A2 (en) 1979-03-05 1979-03-05 Metallic closed yielding roof support

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
SU709816 Addition

Publications (1)

Publication Number Publication Date
SU878946A2 true SU878946A2 (en) 1981-11-07

Family

ID=20813673

Family Applications (1)

Application Number Title Priority Date Filing Date
SU792733001A SU878946A2 (en) 1979-03-05 1979-03-05 Metallic closed yielding roof support

Country Status (1)

Country Link
SU (1) SU878946A2 (en)

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