989 resultados para Wheatstone bridges


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Survey map and description of George Keefer's land created by The Welland Canal Company. Included is a written description of the land along with a drawing of the land. Noteable features include; road, road allowance, line between Black and Keefer's land, township line, reservoir, bridges, lock no's. 32, 33, 34, 35, mill. Surveyor notes are seen in pencil on the map. Land is composed of sections of lot no.s 9 and 17 in Thorold. The land is a total of 28 acres, 2 roads, and 12 perches.

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Survey map and description of William Youell's land created by The Welland Canal Company. The land was in the posession of James Black Esquire at the time of the survey. Included is a written description of the land along with a drawing of the land. The drawing of the land can be found with the record for George Keefer (p. 73). Noteable features include; bridges, mill, lock no.s, 32, 33, 34, 35. Surveyor notes are seen in pencil on the map. The land was originally surveyed in 1826 and then again on July 25th 1831 by George Keefer for James Black.Refer to page 73 for map (George Keefer record).

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Two survey maps and descriptions of George Marlatt's land created by The Welland Canal Company. The first is from 1826, as described in the deed of November 21, 1826. The second survey was done on August 29, 1831 by George Keefer. Included is a written description of the land along with a drawing of the land. Noteable features for the first survey (p.85) include; line between Kelly and Marlatt's land, lot division. Noteable features for the second survey (p.87) include; road to Beaverdams, reservoir, bridges, road allowance, lot divisions, line between Kelly and Marlatt's land. Surveyor notes are seen in pencil on the map.See also Page 90-91

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Survey map and description of John Hellem's land created by The Welland Canal Company. Included is a written description of the land along with a drawing of the land. Noteable features include; W. Crooks land, concession lines, basin, bridges, guard lock, reservoir, tow path, Lyons Creek. The survey was done on three seperate ocassions by George and Samuel Keefer for Hellems lot #26 in Crowland township. Surveyor notes are seen in pencil and red pen on the map.

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Survey map and description of the land belonging to the Welland Canal Company at Dunnville. Created by The Welland Canal Company. Included is a written description of the land along with a drawing of the land. There are two seperate surveys done for the lands: Survey #1 (Pp. 148-149) noteable features include; the Grand River, the original boundry of the Grand River, marsh overflow, marsh, feeder river, bridge, Broad street, Lock street, Main street, embankment, dam (600 ft.), lines between lots, reserve for the ships yard, reserve for lock and dry dock, lands occupied by the canal and towpath to guard gate. The land totals 9 acres, and 3 roads, including the street. Survey #2 (Pp. 150-151) completed by George Keefer noteable features include; embankment, marsh overflow, original channel of the Grand River, salt spring, bridges, wier, proposed waste wier, Van Riper's home, proposed bridge, sulphur spring, road, Sulphur Creek, division between lots 12-17. The land totals 27 acres, and 2 perches. Surveyors notes can be seen in pencil and red ink on the survey.See also Pp. 148-151

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Survey map of the plan of the Village of Marshville, created by The Welland Canal ompany. Included is a two page drawing of the land. Noteable features include; line between 5th and 4th concessions, William Simpson's land, line between 3rd and 4th concessions, feeder, bridges, mill lots, road to Sugarloaf, old stakes, Canby lot 17, lot no.19, lot divisions. The drawing is titled "Plan of the Village of Marshville now Milton, reserveyed September 18th, 1835". Surveyor notes are seen in pencil on the map.See Pages 164-165

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The Niagara Falls Bridge Commission was created by a joint resolution of the 1938 U.S. Congressional Third Session. The Extra Provincial Corporations Act of Ontario, Canada licenses the Niagara Falls Bridge Commission. Canada and the United States are equally represented on the Commission by an 8 member Board of Commissioners. Canadian commissioners are appointed by the Premier of Ontario. The three Niagara bridges are the Whirlpool Bridge, the Lewiston-Queenston Bridge and the Rainbow Bridge. Source:http://niagarafallsbridges.com/index.php3

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he Niagara Falls Bridge Commission was created by a joint resolution of the 1938 U.S. Congressional Third Session. The Extra Provincial Corporations Act of Ontario, Canada licenses the Niagara Falls Bridge Commission. Canada and the United States are equally represented on the Commission by an 8 member Board of Commissioners. Canadian commissioners are appointed by the Premier of Ontario. The three Niagara bridges are the Whirlpool Bridge, the Lewiston-Queenston Bridge and the Rainbow Bridge.

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Two classes of building blocks have been prepared and characterized and their coordination chemistry explored working towards the preparation of new molecule-based magnetic materials. In the first project, the amine functionality of 3,3'-diamino-2,2'- bipyridine was exploited for the preparation of a new family of ligands (H2L 1)-(H2L 4). The molecular structures of three ligands have been fully characterized by X-ray crystallography. [molecular structure diagram will not copy here, but is available in full pdf.] The coordination chemistry of these ligands with divalent first row transition metal ions was investigated. For ligand (H2L1), the molecular structures of four coordination complexes with stoichiometries [Zn2(Ll)(OAc)(MeO)]2 (I), [Cu2(L1)(OAc)2 (II), [Li(L1)]3 (III), and [Ni(L1)]3 (IV) were determined by X-ray crystallography. For ligand (H2L2), a Cu(II) complex of stoichiometry [Cu3(L2)(OAc)3MeO] (V) was determined by X-ray crystallography. The magnetic properties of complexes (II), (III), and (V) have been fully elucidated. In project two, synthetic strategies for the preparation of porphyrin molecules bearing triol substituents is presented. Following this approach, three new porphyrin derivatives have been prepared and characterized [Zn(HPTPP-CH2C(CH20H)3)] (VI), [P(TPP)(OCH2C(CH2)H)3)2]+CL- (VII), and [P(OEP)(C6H5)(OCH2C(CH2OH)3)]+Cl- (VIII). Attempts to exchange the labile methoxide bridges of a tetraironIIl single molecule magnet of stoichiometry [Fe4(OMe)6(dpm)6] (Hdpm = dipivaloylmethane) with the triol appended porphyrins will be discussed. [molecular structure diagram will not copy here, but is available in full pdf.]

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The Niagara Parks Commission administrative headquarters are located in Oak Hall which is on the cliff above Dufferin Islands. In 1798 this land was granted by the crown to United Empire Loyalist James Skinner until 1898. A century later it was the home of the Clarks, Streets and Macklems. These families controlled the mills of Bridgewater which was a pioneer industrial village located at Dufferin Islands. Then, it was known as Clark Hill. Colonel Thomas Clark, commander of the Second Lincoln Militia in the War of 1812 is the earliest known occupant of the house. When Clark died in 1837, the house went to Thomas Clark Street who was the son of the Colonel’s partner. Mr. Street was a bachelor and his sister, widow of Dr. T.C. Macklem, managed his household. Mrs. Macklem had 2 sons. The eldest son drowned in the Niagara River at the age of 8 and the younger son, Sutherland became heir to the estate. Mr. Macklem opened Cynthia Islands and Cedar Island to the public and had roads built to reach them. Two suspension bridges connected them to the mainland and tolls were charged on the bridges. The improvements to the land cost Macklem $18,962. He called the bridges “Bridge Castor” and “Bridge Pollux”. There was also an office built at the end of Bridge Castor. Macklem also spent $454 fixing up the Burning Spring Building (the burning spring is enclosed in a barrel which collects gas and lets it out through a tube at the top). Macklem received a yearly income of $56,378.79 from tourists and visitors. In 1887 Cynthia Islands and Cedar Island were deeded to the crown and became part of Queen Victoria Park. The name Cynthia was changed to Dufferin in honour of Lord Dufferin. Sources: www.niagarafrontier.com/parks.html www.niagarafrontier.com/burningsprings.html

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Using focus group methods, this project examines six men’s experiences of becoming vegetarian and the unique interaction between two identities commonly assumed to be in conflict: vegetarianism and masculinity. Included in this report is an overview of the contemporary debates in gender theory, with specific attention paid to men and masculinity. Seen through the lens of poststructural gender theory and the notion of multiple masculinities, this report demonstrates how vegetarian men challenge, negotiate and assert themselves as men both within the dominant culture and within their own vegetarian communities. This project bridges two existing bodies of work - poststructural gender theory and critical animal studies - to bring a more nuanced and better-articulated critique of gender to existing studies of the relationship between meat and masculinity and to offer this examination of meat consumption and gender performance as an illustration of the valuable applications of poststructural gender theory within critical animal studies.

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Final Report of John A. Roebling, Civil Engineer, to the Presidents and Directors of the Niagara Falls International Bridge Companies.

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From American Society of Civil Engineers.

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From American Society of Civil Engineers.

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Memoirs of the late Brigadier-General Sir Samuel Bentham, with an account of his inventions -- The Paddock Viaduct / by John Hawkshaw -- Lockwood Viaduct / by John Hawkshaw -- Denby Dale Viaduct / by John Hawkshaw -- Tithebarn Street Viaduct, Liverpool / by John Hawkshaw -- Newark Dyke Bridge on the Great Northern Railway / by Joseph Cubitt -- Mountain top track in the state of Virginia / by Charles Ellet -- Preliminaries to good building / by Edward Lacy Garbett / Suggestions for increasing the circulating medium in aid of commerce and mechanical enterprise