Mining or in situ disintegration of hard material – Hard material disintegrating machines – With mine roof-supporting means
Patent
1977-01-28
1978-07-18
Purser, Ernest R.
Mining or in situ disintegration of hard material
Hard material disintegrating machines
With mine roof-supporting means
299 11, 299 64, 299 75, E21D 904, E21D 910
Patent
active
041011732
ABSTRACT:
A mineral mining machine of the type having a boom-mounted cutter assembly carried by a mobile base unit is provided with a face support structure which is pivotally mounted on the boom. Fluid operable rams are provided for moving the structure between a stowed position lying adjacent the boom and an operational face supporting position perpendicular to the longitudinal axis of the boom. The face support structure is brought into operation when it is desired to afford temporary support to a face of a ripping lip for example, in arch setting operations. In this latter respect, the boom also carries a stowable platform which can be opened out so that operatives may position themselves to handle arch sections which are elevated into position by a lifting mechanism also pivotally mounted on the boom.
REFERENCES:
patent: 2659586 (1953-11-01), Leven
Coal Industry (Patents) Limited
Purser Ernest R.
LandOfFree
Roof prop and platform movably mounted on boom of tunnelling mac does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Roof prop and platform movably mounted on boom of tunnelling mac, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Roof prop and platform movably mounted on boom of tunnelling mac will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-335546