Improvements in Fog-signalling Apparatus for Sailing-ships, Light-houses, Light-ships and the like.

摘要

20,330. Schõffer, C. Sept. 12. Compressing; storing under pressure.-A hand-operated compressor b, a storage chamber a, and a horn, siren, or whistle c a r e combined to form a portable fog signalling apparatus for use on sailing-ships, lighthouses, and the like. [Reference h a s been directed under Patents Act, 1902, to Specification No. 12,212, A.D. 1904.]