page_title: Railway semaphore signal
hierarchical_section_title: Railway semaphore signal
caption_attribution_description: English: This pic shows a permanent exhibition at the railway station of Steinfurt-Burgsteinfurt.
context_page_description: Semaphore is one of the earliest forms of fixed railway signals. 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 most countries, but in a few they remain in use.
context_section_description: Semaphore is one of the earliest forms of fixed railway signals. 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 most countries, but in a few they remain in use.
caption: German semaphore distant (left) and home (right) signal exhibition in Steinfurt, Germany.
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