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Topic: Tribrach

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	Tribrach device - Patent RE37318
		The tribrach is secured on its underside to the upper end of the tripod, and the optical sighting instrument is detachably secured to the top of the tribrach device.
		With a conventional tribrach device, the three depending legs of an optical sighting device are received in three openings in the tribrach, after which the legs are locked by rotating a small tab or lever to move a cam against the legs in the openings.
		The tribrach device includes a laser generator 20 such as a 670 nm diode laser which is secured in a recess or cavity in member 19.
	www.freepatentsonline.com /RE37318.html (2444 words)

	Tribrach - Wikipedia, the free encyclopedia (Site not responding. Last check: 2007-10-24)
		A tribrach is a metrical foot used in formal poetry.
		A tribrach is used to iteratively and simultaneously realize the dual requirements placed on a theodolite mounted for measurement over a benchmark: that it be centered and levelled.
		Usually the tribrach also contains a forced centering mechanism, allowing the theodolite to be replaced by a target, optical plummet or other instrument to the same position with sub-mm precision, by just loosening and re-tightening a locking screw.
	www.encyclopedia-online.info /Tribrach (256 words)

	Tribrach -- Facts, Info, and Encyclopedia article (Site not responding. Last check: 2007-10-24)
		A tribrach is a (A group of 2 or 3 syllables forming the basic unit of poetic rhythm) metrical foot used in formal (Literature in metrical form) poetry.
		In surveying science, a tribrach means an instrument attachment plate containing three thumbscrews (see (A surveying instrument for measuring horizontal and vertical angles, consisting of a small telescope mounted on a tripod) theodolite).
		Both metal plates making up the tribrach have a large circular hole in the center, through which goes the attachment screw of the (A surveying instrument for measuring horizontal and vertical angles, consisting of a small telescope mounted on a tripod) theodolite.
	www.absoluteastronomy.com /encyclopedia/t/tr/tribrach.htm (319 words)

	WSLS - Wisconsin Society of Land Surveyors
		If the circular level in a tribrach is out of adjustment it will become apparent when you place an instrument in it and then have to move the foot screws quite a bit to get accurately level.
		Tribrach adjustments are totally independent; changing the adjustment of the level vial has no effect whatever on the adjustment of the optical plummet.
		In theory the plane of the tribrach is the flat surface on which base of the instrument rests.
	www.wsls.org /tribrach.htm (807 words)

	Equipment
		There is a kind of "bombing sight" on the tribrach that puts a crosshair over the image of whatever is directly under the tripod.
		Adjusting the tripod until the bubble is aligned inside the painted circle levels the tribrach and the attached antenna.
		The spike mount circumvents the tripod and tribrach, allowing the antenna to be mounted on a spike that rests on the survey mark.
	www.physics.hmc.edu /Research/geo/equipment.html (877 words)

	SECO Manufacturing Company, Incorporated -- www.surveying.com
		Place the tribrach to be adjusted on top of the adjuster so that it is upsidedown looking at the target on the ceiling.
		Using the leveling screws of the bottom tribrach, point the crosshair of the tribrach being tested to coincide with the target.
		Place the #2002 in the tribrach and level the tribrach using the vial on the #2002.
	www.surveying.com /tech_tips/details.asp?techTipNo=12 (374 words)

	Tribrach - Wikipedia, the free encyclopedia
		Tribrach (poetry), a metrical foot of three short syllables.
		Tribrach (instrument), a device used in surveying for leveling and centering.
		This is a disambiguation page — a list of articles associated with the same title.
	en.wikipedia.org /wiki/Tribrach (84 words)

	GSS Geomatics Information Center: Tribrach Adjustment (Site not responding. Last check: 2007-10-24)
		A tribrach does not have to be levelled to adjust the optical plummet, nor should it be.
		We located the center point; adjusted the reticule of the optical plummet to the center point; and, repeated until the reticule was in perfect adjustment.
		Then, we released the tribrach from the target top; clamped on a second tribrach and adjusted it to the center point on the wall; then, we rotated the tribrach to see if it produced a conical error: it did not.
	www.gssgeomatics.com /tribrachs.html (349 words)

	Tribrach
		A tribrach is a metrical foot used in formal poetry and Greek and Latin verse.
		In quantitative meter (such as the meter of classical verse), it consists of three short syllables; in accentual-syllabic verse (such as formal English verse), the tribrach consists of three stressed syllables.
		Its appearance in English poetry is rare, as it tends to resolve into two disyllabic feet, depending upon the feet that surround it.
	www.clipart.teleactivities.com /poetry/tribrach.html (112 words)

	Youna.com - Products
		The rotatable friction top adapter allows the prism to be pointed after installation in the tribrach.
		CST's most popular adapter, it allows you to point prisms after installation in the tribrach.
		CST Wild-type Tribrachs with optical plummet offer precise plumbing of surveying instruments and adapters, and have a universal 5/8 x 11 base plate.
	www.youna.com /Products.asp?reqCat=Tribrachs (64 words)

	BAP Equipment: Tribrach Adapters
		Rotating tribrach adapter adapts retro prisms to Wild-type tribrachs, and has a removable Zeiss plug for adapting prisms to Zeiss tribrach.
		Rotating tribrach adapter, same as number 61-2520, but with rotatable friction top.
		CST’s most popular tribrach adapter, it allows you to point prisms after installation in the tribrach.
	www.bapequipment.com /cat_334.html (149 words)

	Field Supplies Tribrachs , Tribrach Adapters
		The base plate is a universal 5/8" x 11 with circular leveling vial that has a sensitivity of 10'/2mm.
		This Zeiss/Wild rotating tribrach adapter with a removable center adapts retro prisms to Wild-type tribrachs and has removable Zeiss plug for adapting prisms to Zeiss tribrachs.
		For checking and adjusting optical plummet tribrachs in the office.
	www.instrumentsales1.com /online-store/scstore/fs-15.htm (188 words)

	Total Stations and Angle Measurements (Site not responding. Last check: 2007-10-24)
		Axis of scope in tribrach is aligned with vertical axis of instrument using right-angle prism
		When tribrach has circular bubble, remove tribrach from instrument and roughly level and center tribrach over point before returning instrument to tribrach.
		Remove tribrach from instrument in case, and place on tripod if it has an optical plummet.
	surveying.wb.psu.edu /sur111/Lectures/C8.htm (1821 words)

	Tribrachs, Tribrach Adapters (Site not responding. Last check: 2007-10-24)
		CST Wild-type Tribrachs with or without optical plummet offer precise plumbing of surveying instruments and adapters, and have a universal 5/8 x 11 base plate.
		These tribrachs meet or exceed the quality and construction standards of leading Japanese, Swiss, and German brands.
		Adapts retro prisms to Wild-type tribrachs, with a removable Zeiss plug for adapting prisms to Zeiss tribrach.
	www.advancedlasers.com /supplies/tribrachs.htm (386 words)

	Tribrachs - Holman's, Inc. 1(800)545-0932 (Site not responding. Last check: 2007-10-24)
		Tribrachs accept electronic, and optical surveying and GPS equipment.
		Topcon rotating tribrach adapter featuring a standard 3-foot lock base and 5/8 x 11 rotating plate.
		This Seco tribrach features a standard 5/8 x 11 base, 3-screw leveling system, 8’ circular level vial, and twist-focus 2.5x magnification OP.
	www.holmans.com /eStore/model_2_new.asp?modelid=310 (224 words)

	LO INK SPECIALTIES - ADJUSTING EQUIPMENT - LO INK OP TRIBRACH ADJUSTING RING
		The Op Tribrach Adjusting RING Item No. 175 will check the optical plummet for any error and help in adjusting the tribrach reticule to eliminate that error.
		After placing the adjusting ring on top of one of your Tribrach and while looking at a point on the ceiling, turn the tribrach 180 degrees.
		You can then adjust the OP with the leveling screws on the bottom tribrach and the reticule screws on the top tribrach.
	www.loink.com /product/48/14 (136 words)

	Looking for a Leica GDF 24 tribrach
		HI The GDF 24 tribrach was an optional component of the TC2000 and it is designed to be used with Friburg Ball style setup for SURVEY Pillars.
		More specifically, the GDF24 allows the bottom platform of the tribrach to be removed leaving only the points of the three footscrews as the points of contact.
		These old pillars have their top surface as concrete only and so the disks provide more surface area contact on a concrete sureface that may not be perfectly planar across thr full width between the tribrach foot pads.
	www.ee-one.com /new-5045421-4322.html (355 words)

	FLT Geosystems -Surveying Tips (Site not responding. Last check: 2007-10-24)
		Place tribrach adjuster in tribrach and place tribrach to be adjusted upside down on top of adjuster.
		Place the theodolite in the tribrach and level the theodolite with its plate level and check the plate level in all four quadrants.
		Once the theodolite is level, adjust the circular level on the tribrach to center using an adjusting pin and the screws found immediately below the circular level.
	www.fltgeosystems.com /tips.html (332 words)

	GPS Survey Equipment at Advanced Geodetic Survey (Site not responding. Last check: 2007-10-24)
		It fits all ‘wild-type’ tribrachs with 5/8-11 mounting stud.
		Allows adjustment of the prism height by moving the threaded brass insert in the adapter.
		This adapter adapts retro prisms to ‘wild-type’ tribrachs and has a removable Zeiss plug and locking screw.
	www.agsgps.com /secotribrachs.html (182 words)

	Learn more about Tribrach in the online encyclopedia. (Site not responding. Last check: 2007-10-24)
		Learn more about Tribrach in the online encyclopedia.
		Hint: Play with putting spaces before and after your words to see the different results you get.
		A tribrach can also mean a three-footed device (see theodolite).
	www.onlineencyclopedia.org /t/tr/tribrach.html (143 words)

	What about tribrach? (Site not responding. Last check: 2007-10-24)
		The existence of the tribrach has been contested by some writers and it has no entry in the OED but does appear.
		edm, tribrachs, edm accessories, rotating tribrach adapters, zeiss tribrachs, leica prism pole adapters, rod adapters, tripod adapters, prism adapters, optical plummet tribrach, tribrach.
		The existence of the tribrach has been contested by some writers.
	tribrach.fgbz.com (244 words)

	CST/Berger EDM Accessories, Adapters
		For adapting Leica snap-on prisms to 5/8 - 11 tribrach adapter or prism pole
		Same as 61-2520, but with a rotating friction top featuring smooth operation and adjustable tension.
		Adapts retro prisms to Wild-type tribrachs, with a removable Zeiss plug for adapting prisms to Zeiss tribrach.
	www.mytoolstore.com /berger/pole05.html (184 words)

	Tripods, Tribrachs & Accessories - Holman's, Inc. 1(800)545-0932 (Site not responding. Last check: 2007-10-24)
		Every good surveyor knows when it comes to that crucial repeatability in the field, a quality setup is one of the surest ways to improve results.
		From composite, hardwood, and fiberglass tripods to a wide range of tribrachs and accessories, Holman’s has what you need to do your best work.
		The bag is padded, with carrying strap, and measures 6-in.
	www.holmans.com /eStore/Model_2_new.asp?ModelID=350 (687 words)

	Contractor - Shopping.com
		For adapting Leica snap-on prisms to 5/8 x 11 tribrach adapter or prism pole.
		Tribrach Leica type prism adapter (to 5/8 x 11).
		Adapts retro prisms to Wild-type tribrachs, with a removable Zeiss plug for adapting prisms to Zei...
	www.shopping.com /xCC-Contractor-price_range_20_70-adapter_plugs_and_converters (997 words)

	SECO -- SURVEYING.COM -- European-Style Tribrach
		This high-quality tribrach features 2X magnification and a twist focus.
		With a sighting distance of 0.3 m to 15 m, the tribrach has an accuracy of 0.5 mm per 1.5 m.
		It also has a locking forced-centering knob, a 5/8 x 11 base and an 8-minute circular vial.
	www.surveying.com /products/details.asp?prodID=2153-05-BLK (65 words)

	Tribrach Optical Yellow
		We can supply the best quality Tribrach Optical Yellow to you.
		We can export our Tribrach Optical Yellow to Philippines, Andorra, Iceland, Chile, Latvia, Australia.
		These exteriorinteror doors are coated with organic lubricating coating to reach the same walking comfort, decoration effect, and is more stable and firm.
	www.openrussia.ru /catalogitems/28670/Tribrach-Optical-Yellow.htm (253 words)

	Tripods, Prisms, Prism Poles, Targets, & Tribrachs
		The Optical Plummet Twist-Focus Tribrach features a twist focus with 2.5x magnification, and leveling screws with center line.
		The optical plummet has a focusing range of 1.5 to 50 feet (0.5m-15m).
		This case is designed to carry a single tribrach.
	www.yoas.net /tripods-prisms.htm (850 words)

	Company Info Products ...
		A complete line of precision engineered tribrachs and tribrach adapters.
		Quality tribrachs and tribrach adapters at economical prices.
		Our tribrachs are available with or without optical plummet.
	www.incitesurvey.com /tribrachs.htm (39 words)

	Tripod and Antenna Set Up
		Use tribrach bull's eye level to initially level tripod.
		Move tripod legs to center optical plumb on monument and to level tribrach bull's eye level.
		If optical plumb is almost centered, loosen tribrach from tripod and move tribrach until optical plumb is centered.
	www.geology.ucdavis.edu /~gps/CAMPAIGN/tripod_antenna.html (203 words)

	Setting up the Base Station (Site not responding. Last check: 2007-10-24)
		The tribrach has one notch on the perimeter which will accept the optical plumb.
		Rotate the lock-lever on the optical plumb to secure the optical plumb to the tribrach.
		The tribrach cannot extend over the tripod shoe (if this occurs, go back to step 4 and move the tripod legs.
	www-geology.ucdavis.edu /~gps/RTK/base_station.html (555 words)

	Amazon.com: Tribrach (Site not responding. Last check: 2007-10-24)
		the dactyl, the niolossus, the tribrach, the amphibrach and the arnphimacer...
		of error in EDM is tribrach er- ror.
		They include these: Tribrach: U U U Cretic: /...
	www.amazon.com /s?ie=UTF8&keywords=Tribrach&tag=dragoncon&index=blended&link_code=qs&page=1 (615 words)

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