This is the crushing machine at the Yat
Courtesy of: John Ricketts. Uploaded: .
John
wrote (Mar 2007): " The workman in the bottom R.H.corner gives a good
scale factor to this shot..... Basically
the crushers had eccentric shafts which closed and opened a tapered
slot ..... thus crushing the inserted stone.
Stone was delivered on small
gauge trucks (drams) then manhandled into the crusher.The gravel produced
dropped through, then was raised
up in the central vertical conveyor and dropped into the storage chamber
which was probably fitted with a grading drum at the bottom .This consisted
of a rotating cylinder set at a downwards angle .The various stone
sizes falling through different sized holes as they pass through.
Interesting
to note the minimal use of high energy materials in the construction of
this plant, also the complete lack of safety guards".
If you wish to comment on this photo or can supply names of people please click
here 
WANTED: Old photos, old postcards, ephemera and memories of the Forest of Dean, Gloucestershire. U.K.