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The locking bar system allows for even stress to be distributed and prevent canting of the scope mount. Another form of scope canting is caused by the rings themselves. Many Weaver-type mounts, including many Picatinny-type scope rings and even the Redfield Type, have either two or four screws on top of the scope ring that hold the scope in place.
Signals are most commonly mounted on trackside masts about 12 to 15 feet (3.7 to 4.6 m) high to put them in the eyeline of the engineer. Signals can also be mounted on signal bridges or cantilever masts spanning multiple tracks. Signal bridges and masts typically provide at least 20 feet (6.1 m) of clearance over the top of the rail.
A cantilever in a traditionally timber framed building is called a jetty or forebay. In the southern United States, a historic barn type is the cantilever barn of log construction. Temporary cantilevers are often used in construction. The partially constructed structure creates a cantilever, but the completed structure does not act as a cantilever.
A base can thus sometimes constitute a complete scope mount assembly, but is most often used to refer to the lower part of a two-part scope mount assembly. The firearm interface which sits on the firearm and to which the scope mount is attached is often called the base or rail. Some types of bases are: Standard mounts
A double cantilever hangar is a type of hangar that was constructed by the United States Air Force during the Cold War.Large hangars were constructed at Castle Air Force Base, Carswell Air Force Base, Loring Air Force Base, McGuire Air Force Base, and Pease Air Force Base, while smaller hangars were constructed at Edwards Air Force Base, Hanscom Air Force Base, Homestead Air Force Base, March ...
A Catholic nun with the Sisters of Charity Institute in Milan was among 25 people arrested early Thursday morning for a litany of mafia-related crimes, including aiding and abetting extortion ...
Trolley poles are still used by trolleybuses, whose freedom of movement and need for a two-wire circuit makes pantographs impractical, and some streetcar networks, such as the Toronto streetcar system, which have frequent turns sharp enough to require additional freedom of movement in their current collection to ensure unbroken contact. However ...
The Atlanta Falcons have lost three in a row after kicking the season off with a 6-3 record. Perhaps their most felting loss of this recent skid, despite being blown out in Denver, was their 17-13 ...