In most of these countries, the postal authorities operated the semaphore lines.
From the en.wikipedia.org
Holtom, who died in 1985 at age 71, based the image in the circle on semaphore.
From the courier-journal.com
More conventional semaphore signals replaced the discs and crossbars over time.
From the en.wikipedia.org
The first semaphore signals were controlled by levers situated at the signals.
From the en.wikipedia.org
The semaphore is sufficiently elementary to be successfully studied by formal methods.
From the en.wikipedia.org
A later development was the upper quadrant three-position semaphore signal.
From the en.wikipedia.org
He's drawn too stiffly, an emotional semaphore around which the tempest of a plot swirls.
From the charlotteobserver.com
He led in the first round after smashing through a semaphore category.
From the thestate.com
Bloggers and tweeters are quoted freely as semaphore from the streets.
From the nytimes.com
More examples
An apparatus for visual signaling with lights or mechanically moving arms
Send signals by or as if by semaphore
Convey by semaphore, of information
Semaphore is the second studio album by Fridge, released on 16 March 1998.
In computer science, a semaphore is a protected variable or abstract data type that constitutes a classic method of controlling access by several processes to a common resource in a parallel programming environment. A semaphore generally takes one of two forms: binary and counting. ...
Semaphore is the 2004 7" single by the New Zealand post-rock band Jakob. The title track is taken from the album and the b-side is a previously unreleased track taken from the initial (abandoned) Cale:Drew recording session. Semaphore was written during the sessions for Subsets of Sets.
(Semaphores) When a work process locks a resource, it sets a semaphore. Another work process that also wants to access it must then wait.
(Semaphores) and locks of all sorts relieve you of needing to implement common locking techniques.
(Semaphores) messages sent when a file is opened that prevent other users from opening the same file at the same time and compromising the integrity of the data