Methods of Location: Or, Modes of Describing and Adjusting Railway Curves and Tangents, as Practised by the Engineers of PennsylvaniaBiddle, 1837 - 41 páginas |
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Methods of Location: Or, Modes of Describing and Adjusting Railway Curves ... Samuel Wright Mifflin Visualização completa - 1837 |
Methods of Location: Or, Modes of Describing and Adjusting Railway Curves ... Samuel Wright Mifflin Visualização completa - 1854 |
Methods of Location: Or, Modes of Describing and Adjusting Railway Curves ... Samuel Wright Mifflin Visualização completa - 1854 |
Termos e frases comuns
angle AFB angle required axis back sight CALIFORNIA L Fig central angle centre circle described circumference circumferential complete the parallelogram completing the tangent course of survey Curve HAE curve SFM curves HF degree of curvature describe the differential differential circle differential curve distance equal and parallel equal to half exterior angle feet fix the sight H Fig HF and LF HS and LM index to Zero integral curve intersection isosceles triangle level and clamp LIBRARY Measure the Angle METHODS OF LOCATION opposite direction parallel and equal parallel to EF point H point of meeting PROPOSITION XV radius is equal reverse the Telescope reverse the Transit reversed curve right angles set the index set the instrument show the angle take a back take any point take sight tangent required tangential angle terminate turn the head turn the index turn the rack UNIVERSITY OF CALIFORNIA