Motors: expansible chamber type – Fluid supply through diverse paths to single expansible chamber – Activation of one path disables second path
Patent
1973-12-10
1976-06-29
Schwadron, Martin P.
Motors: expansible chamber type
Fluid supply through diverse paths to single expansible chamber
Activation of one path disables second path
60387, 91 2, 91 14, 91 35, 91433, 91461, F15B 1304
Patent
active
039657973
ABSTRACT:
In a mineral mining installation employing a series of shifting rams for advancing a scraper-chain conveyor provided with a guide for a mining machine a control system with a central control station for transmitting control signals. The control signals serve to actuate local control valves, possibly in time dependence, to cause a selected one or group of metering devices to transfer a pre-determined volume of pressure fluid to one or more of the rams to effect said advancement. This volume of pressure fluid is some fraction of the total capacity of the ram or rams in question so that by repeatedly transmitting control signals the device or devices can perform successive cycles of operation to thereby cause the ram or rams associated therewith to extend in defined increments.
REFERENCES:
patent: 1895732 (1933-01-01), Rosenkranz
patent: 2613703 (1952-10-01), Calvert
patent: 2632472 (1953-03-01), Livers
patent: 3307584 (1967-03-01), Czernek
patent: 3382769 (1968-05-01), Raider
patent: 3859791 (1975-01-01), Allen
Gewerkschaft Eisenhutte Westfalia
Hershkovitz Abraham
Schwadron Martin P.
LandOfFree
Control systems and arrangements for use in mineral mining insta does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Control systems and arrangements for use in mineral mining insta, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Control systems and arrangements for use in mineral mining insta will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1269665