PY. C 109 4th December 1900. 34.9 RECE CAPE D'AGUILAR 1st ORDER LIGHT.
Occulting gear for changing the present Fixed Light into an Occulting Light, to produce occultations at intervals to be decided upon, comprising:- Clockwork complete, with driving chain and spare chain, lead driving weights, snatch block and back balance chain, sheet-iron dropping cylinder, over-gear gear springs, chains, brackets, adjustable clip brackets, bushed brackets for overhead gear, pawl for crank disc, spare chains, 2 spare spiral springs, 2 spare chain pulleys, 1 spare double ended lever, 1 spare trigger, spare screws &c.
To be set up and tested in our Works.
Packed and delivered f.o.b. in London for the sum of £130 (one hundred and thirty pounds).
GREEN ISLAND 4th Order LIGHT.
Occulting Gear &c exactly as above.
Packed and delivered f.o.b. in London for the sum of £125 (one hundred and twenty-five pounds).
We should require to know the period desired for the occultation, how many seconds dark and how many seconds light. Also the diameter of the burner to ensure correct size of the dropping cylinder.
A weight tube for conducting the driving weights should be provided in the tower.
CHANCE BROTHERS AND CO LIMITED
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