Siemens Fire Control Instruments: Difference between revisions
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[[Siemens]] manufactured a variety of [[Direct-Working]] [[Fire Control | [[Siemens]] manufactured a variety of [[Direct-Working]] [[Fire Control Instrument]]s and bells for shipboard communication. The Royal Navy tested and deployed in 18 pre-dreadnoughts a variety of early instruments, but soon settled on the [Step-by-Step]] instruments manufactured by [[Barr and Stroud]] and [[Vickers]] for installations after around 1907.{{CN}} | ||
==Prototype Design and Testing== | ==Prototype Design and Testing== | ||
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*{{BibUKARTS1903}} | *{{BibUKARTS1903}} | ||
*{{BibUKARTS1904}} | *{{BibUKARTS1904}} | ||
*{{BibUKARTS1906}} | |||
*{{BibUKTorpedoDrillBook1905}} | *{{BibUKTorpedoDrillBook1905}} | ||
*{{BibUKTorpedoDrillBook1908}} | *{{BibUKTorpedoDrillBook1908}} | ||
Revision as of 16:03, 20 September 2009
Siemens manufactured a variety of Direct-Working Fire Control Instruments and bells for shipboard communication. The Royal Navy tested and deployed in 18 pre-dreadnoughts a variety of early instruments, but soon settled on the [Step-by-Step]] instruments manufactured by Barr and Stroud and Vickers for installations after around 1907.[Citation needed]
Prototype Design and Testing
In 1903, Siemens received permission to send a set of step-by-step transmitters and receivers to Vernon for testing and evaluation, claiming to have overcome difficulties then associated with such devices.[1]
In 1904, testing was done with 2 types of Siemens gear. "Siemens A" was a very reliable 4-wire step-by-step system (Vernon reported it had "never been known to miss a step") for conveying ranges or deflections. Vernon seemed well pleased with it, asking only that the range model be arranged in 25 yard step sizes rather than 100 as demonstrated, and that illumination at the receiver and a reply acknowledgement lamp back to the transmitter be stricken. "Siemens B" was a 10-order direct-working instrument pair employing a large number of wires between transmitter and receiver. That same year, this defect was offset by an innovation of Lieutenant C. R. Nicholl, who reduced the number of wires by using them to indicate in some binary fashion the position the transmitter means to send.[2]
Mark I Instruments
Mark II Instruments
Mark III Instruments
See Also
Footnotes
Bibliography
- Template:BibUKARTS1903
- Template:BibUKARTS1904
- Template:BibUKARTS1906
- Template:BibUKTorpedoDrillBook1905
- Template:BibUKTorpedoDrillBook1908
- Template:BibUKTorpedoDrillBook1912
- Template:BibUKTorpedoDrillBook1914
- Admiralty, Gunnery Branch (1910). Handbook for Fire Control Instruments, 1909. Copy No. 173 is Ja 345a at Admiralty Library, Portsmouth, United Kingdom.
- Admiralty, Gunnery Branch (1914). Handbook for Fire Control Instruments, 1914. G. 01627/14. C.B. 1030. Copy 1235 at The National Archives. ADM 186/191.
