A Practical Treatise on Segmental and Elliptical Oblique Or Skew Arches: Setting Forth the Principles and Details of Construction |
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Common terms and phrases
20 feet span abutment Adjusted Angle Adjusted Divergence Adjusted Radius Angle of Difference Angle of Intrados angle of obliquity arc to chord arch stones Bill of Quantities Bridge Master centre Chord or Span Contractor correct number Cosecant Cosine Cotangent County Surveyor course of arch coursing joint line cross or heading curve cutting the Skewback cylinder Depth of Arch distance ellipse End Joint Arc External Radius Extradosal Angle Face Lines FEET 45 FEET George Joseph Bell Heading Spiral Impost by cutting inches intradosal and extradosal Intradosal Angle squared Length of Arc Length of Check Length of Impost natural sine number of Checks number of Courses Oblique Arc Oblique Span perpendicular Plate Point of Convergence Radius multiplied Secant soffit SPAN SPAN SPAN Spiral Arc square span Tacheometer Tangent of ẞ tangent scale template Theoretic Angle Thickness of Courses twisted bed twisting rules vernier Width of Bridge