Hitch

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hitch

[hich]
(geology)
A fault of strata common in coal measures, accompanied by displacement.
A minor dislocation of a vein or stratum not exceeding in extent the thickness of the vein or stratum.
(mining engineering)
A step cut in the rock face to hold timber support in an underground working.
A hole cut in side rock solid enough to hold the cap of a set of timbers, permitting the leg to be dispensed with.

Hitch

 

in agriculture, a device for attaching several machines to a tractor in order to use the pulling force of the tractor efficiently and to increase the productivity of the unit. Hitches may be general-purpose, special-purpose, trailer, semimounted, or mounted.

General-purpose trailer hitches are used to connect tractors with trailed machines. They consist of two or three beams equipped with extension arms and support wheels and hinged to follow the terrain irregularities better. The machines and extension arms are attached to the beams with clamps that can be moved to ensure correct positioning of the machines or equipment in the unit. The hitch has a tongue for attachment to the tractor. Special-purpose hitches do not usually have wheels; they are composed of links that join the machines to each other, as in plowing combines.

Semimounted hitches are used to attach a tractor to a unit of three mounted machines, each with a working width of 1.8–2.8 m. One machine is fitted to the mounting system of the tractor, and the two others are attached to side mountings on the hitch, similar to the tractor’s own mounting system. Each mounting on the hitch is equipped with a hydraulic cylinder that is operated by the tractor’s hydraulic system; it is used only for lifting the mounted machine. The machine is lowered by its own weight. The proper spacing of machines with different working widths can be achieved by moving the carriage of the hitch’s mounting mechanism along the beam.

A general-purpose hitch can be used to mount harrow units on tractors of small and medium capacity. The harrow units are attached to the post and brackets of the mounting by means of a hinged brace, two long chains, and one short chain. In order to mount harrow units of different working widths, the brackets of the mounting are moved along the beam. One hitch beam can carry three toothed harrow units or two latticed harrow units. A hitch beam may be extended by inserting two tubes in openings in both sides of the beam. The tubes are smaller in diameter than the beam and are welded to brackets for mounting one toothed harrow unit each, for a total of five harrow units.

A. D. UGAROV

References in periodicals archive ?
A series of lawsuits had resulted in federal court rulings that Alabama's use of the hitching post violated Eighth Amendment standards, and DOJ investigations in 1993 and 1994 had concluded that the systematic use of the post constituted improper corporal punishment.
He was handcuffed to the hitching post, already subdued, handcuffed, placed in leg irons, and transported back to prison.
In each of the 16 rear rollovers attributed to improper hitching, attachment of the tow chain to a point above the drawbar was the principal cause of the rollover.
The original Hitching Post in Casmalia and The Hitching Post II's hand-cut steaks grilled over a red-oak wood fire and seasoned with their unique blend of salt and spices are truly some of the best steaks anywhere.
Mr King, who hitched not only here but also in Europe and America, added: "If she saw teenage boys hitching between the villages my mother would always stop and give them a lift because she kind of knew it could be one of us.
For more info on the Hitching Post restaurant and wines, visit www.
Hitching Post Winery is releasing two cuvees on March 1, 2008 with 2004 Merlot, Westerly Vineyard and 2005 Merlot, Alisos Vineyard, both retailing for $25.
Ostini says that not only has business ``skyrocketed'' at his eatery, but the Hitching Post label is suddenly selling well in previously pinot-resistant cities like New York, Boston and Chicago.
In announcing an Oscar Night "Sideways" celebration at the Buellton Hitching Post, Ostini said, "It's a perfect time for us to celebrate the wonderful gift of worldwide recognition that "Sideways" has given the wines of Santa Barbara.
The Hitching Post is a hospitality area designed to cater to the traveling public by providing excellent food at reasonable prices, as well as a host of other amenities from computer access to state-of-the-art ventilation that is designed to provide a comfortable environment for smokers and non-smokers.
Frommer said he pointed out Quartz Hill residents' desires to keep their community's country atmosphere and asked the developers if they would put in a hitching post - like one outside Acton stores - for people to ride horses to the center.