fork mounting

Collins Dictionary of Astronomy © Market House Books Ltd, 2006

The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Fork Mounting

a parallactic telescope mounting with a polar axis terminating in a fork that carries the declination axis around which the telescope rotates. This mounting makes it possible to direct the telescope at any point in the sky. Fork mountings, which were first used in the USA (1908) for the 1.5-m reflector of the Mount Wilson Observatory, are widely used for mounting large reflectors. The 2.6-m reflector of the Crimean Astrophysical Observatory is thus mounted.

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References in periodicals archive ?

Then we made a fork mounting out of channel iron with a 2-inch equatorial shaft inserted into a part scavenged from an injection-molding machine.

Fond telescope memories

Features include pin-type inner fork mounting for stable support, bolt-on interchangeable forged forks and an adjustable fork spread to accommodate different size pallet loads.

Focus on lift truck attachments

A wide view mast and larger opening between the upper and lower fork mounting bars provide improved visibility during travel and positioning of loads (Toyota).

Lift truck ergonomics move front and center

Amateurs contemplating the purchase of a C-11 can, for about the same money, now choose between a fork mounting and a heavy-duty German equatorial.