-
Period: Jan 1, 1000 to
semaphore
-
robert hooke
robert hooke thoght of the idea of visable telagrath but it wasent untill chluad chappe thaat it was invented -
Claude Chappe
He invented the semaphore tower in France in 1792 for the freanch rvolution -
semaphore tower
the semaphore tower was invented by claude chappe in 1792. It was used to send mesages to the front lines in the freanch revalution. -
naval signall men
Midshipmen at signalling instruction. Postcard of a group of midshipmen signal training in semaphore on board HMS Magnificent (1894). Semaphore is a system of 'optical telegraphy', usually whilst holding flags, where messages were communicated by positioning the arms into recognisable formations to denote different letters and numbers. -
train semaphore
One of the earliest forms of fixed railway signal is the semaphore. These signals display their different indications to train drivers by changing the angle of inclination of a pivoted 'arm'. Semaphore signals were patented in the early 1840s by Joseph James Stevens, and soon became the most widely-used form of mechanical signal. Designs have altered over the intervening years, and colour light signals have replaced semaphore signals in some countries, but in others they remain in use. -
1911
HMS Chatham (1911) signal branch. Group photograph of signallers from HMS Chatham. The three at the front are holding telescopes, which were vital for their jobs in sighting and reading signals in the form of ship's flags, semaphore and Morse code by lamp light. Signalmen were highly trained and vital to the flow of communication between ships of the fleet. They were trained in many methods of communication such as Morse code, flag signalling and semaphore. Signallers had to have good eyesight -
Semaphore Tower before 1913
A black and white photograph of Semaphore tower taken before 1913. On Sunday 20 December 1913 a fire broke out in the Sail Loft, which spread to engulf the building, which included Semaphore Tower. Semaphore Tower was used as a communication post, it was part of a network of Semaphore Towers that spread from the South to Whitehall. It took until 1928 to start rebuilding the nearby building which was to house the Rangefinder Test house, the Rigging House and Semaphore Tower itself. The Dockyard m -
signalman signaling the letter j
Semaphore signalling c.1914-16. Photograph depicting a signaller on board ship practicing semaphore. Semaphore is a system of 'optical telegraphy', usually whilst holding flags, where messages were communicated by positioning the arms into recognisable formations to denote different letters and numbers. This position signals the letter 'J'. Signalmen were highly trained and vital to the flow of communication between ships of the fleet. They were trained in many methods of communication such as -
signal;ers signaling
Semaphore instruction at HMS Dolphin Photograph of submarine ratings at semaphore instruction at the shore establishment HMS Dolphin in Gosport. By the 1920s submarine training at the base had already established itself in the format it was to retain for many years including lectures on submarine systems, equipment and techniques all backed up by practical experience at sea in running boats. The submarine school was originally housed in a collection of wooden huts known as the ‘brown area’. -
Railroad Semaphore Signal
Marker is located on the base, behind the white picket fence.
