Full Report for Listed Buildings
Summary Description of a Listed Buildings
Reference Number
23722
Building Number
Grade
II
Status
Designated
Date of Designation
21/07/2000
Date of Amendment
21/07/2000
Name of Property
Engine House
Address
Location
Unitary Authority
Gwynedd
Community
Llanllyfni
Town
Caernarfon
Locality
Pen-yr-Orsedd
Easting
250969
Northing
354122
Street Side
Location
Located on Level VIII (Bonc Brig) of Pen-yr-Orsedd Slate Quarry at the foot of the modern steep access road from Y Fron.
Description
Broad Class
Industrial
Period
History
Engine house, built c1906. The quarry opened c1816 and in 1863 it was bought by W A Darbishire & Co. During the 1890s about 450 men worked here; it finally closed in 1997.
Exterior
Regularly coursed slate slabs, rendered to upper part of right gable end; slate roof with red brick integral end stack to right gable end. Front wall has wide horizontal window to left and doorway to right; further windows to centre of gable ends. Associated with blondin ropeway system running to the north-west.
Interior
Retains winding drum operated from a Bruce Peebles 3-phase motor of 1906 through reduction gearing, of which the motor, control mechanism and liquid controller survive.
Reason for designation
Included as a well-preserved engine house which, with its associated blondin ropeway system, is a significant feature of the quarry.
Scheduled Ancient Monument (208).
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