A—CRANE-POST. B—SOCKET. C—OAK CROSS-SILLS. D—BAND.
E—ROOF-BEAM.
F—FRAME. G—LOWER SMALL CROSS-BEAM. H—UPRIGHT TIMBER. I—BARS WHICH
COME FROM THE SIDES OF THE CRANE-POST. K—BARS WHICH COME FROM THE SIDES OF
THE UPRIGHT TIMBER. L—RUNDLE DRUMS. M—TOOTHED WHEELS. N—CHAIN.
O—PULLEY. P—BEAMS OF THE CRANE-ARM. Q—OBLIQUE BEAMS SUPPORTING THE BEAMS
OF THE CRANE-ARM. R—RECTANGULAR IRON PLATES. S—TROLLEY. T—DOME OF THE
F—FRAME. G—LOWER SMALL CROSS-BEAM. H—UPRIGHT TIMBER. I—BARS WHICH
COME FROM THE SIDES OF THE CRANE-POST. K—BARS WHICH COME FROM THE SIDES OF
THE UPRIGHT TIMBER. L—RUNDLE DRUMS. M—TOOTHED WHEELS. N—CHAIN.
O—PULLEY. P—BEAMS OF THE CRANE-ARM. Q—OBLIQUE BEAMS SUPPORTING THE BEAMS
OF THE CRANE-ARM. R—RECTANGULAR IRON PLATES. S—TROLLEY. T—DOME OF THE