PL52412B1 - - Google Patents

Download PDF

Info

Publication number
PL52412B1
PL52412B1 PL102007A PL10200763A PL52412B1 PL 52412 B1 PL52412 B1 PL 52412B1 PL 102007 A PL102007 A PL 102007A PL 10200763 A PL10200763 A PL 10200763A PL 52412 B1 PL52412 B1 PL 52412B1
Authority
PL
Poland
Prior art keywords
conveyor
pressure
plow
valve
shifter
Prior art date
Application number
PL102007A
Other languages
English (en)
Polish (pl)
Inventor
inz. Zygmunt Dabinski mgr
inz. Kryatófttoj FasggwW^wPretor mgr
Original Assignee
Zaklady Konstrukcyjnomechanizacyjne Przemysluweglowego
Filing date
Publication date
Application filed by Zaklady Konstrukcyjnomechanizacyjne Przemysluweglowego filed Critical Zaklady Konstrukcyjnomechanizacyjne Przemysluweglowego
Publication of PL52412B1 publication Critical patent/PL52412B1/pl

Links

PL102007A 1963-06-27 PL52412B1 (OSRAM)

Publications (1)

Publication Number Publication Date
PL52412B1 true PL52412B1 (OSRAM) 1966-10-25

Family

ID=

Similar Documents

Publication Publication Date Title
US7926410B2 (en) Hydraulic circuit for synchronized horizontal extension of cylinders
PL124198B1 (en) Releasable check valve used in underground mining as either robbing or jacking valve
US7237983B2 (en) Hydraulic shield support
US4694730A (en) Prop control valve
PL52412B1 (OSRAM)
PL140385B1 (en) Hydraulic control system for self-advancing roof supports
US4264237A (en) Method for controlling a hydraulically operated mine roof support and an arrangement for carrying out the method
CZ65695A3 (en) Support prop for use in mines
US7424803B2 (en) Method and device for pressure amplification in cylinders, in particular hydraulic rams
PL80728B1 (OSRAM)
WO2009024136A2 (de) Ausbaugestell für den strebausbau in bergwerken
GB2132259A (en) Hydraulic control arrangement
PL71636B3 (OSRAM)
EP0344252B1 (en) Device for displacing a first part relative to a second part
SU1602987A1 (ru) Устройство дл управлени стреловидным исполнительным органом проходческого комбайна
PL207470B1 (pl) Blok zaworowy, zwłaszcza do stojaków obudów górniczych
SU949198A1 (ru) Гидросистема управлени механизированной крепью
RU2161254C1 (ru) Гидросистема секции механизированной крепи
SU730970A1 (ru) Гидросистема управлени механизированной крепью
US3721159A (en) Hydraulic control devices
PL160954B1 (pl) Zawór sterowany ciśnieniem
PL189722B1 (pl) Układ wychyłu ramienia górniczego kombajnu ścianowego
PL46883B1 (OSRAM)
PL63725B1 (OSRAM)
SU1548459A1 (ru) Шахтна гидравлическа крепь