Queen Cos Manual of Engineers And Surveyors Instruments Construction Manipu
Queen Cos Manual of Engineers And Surveyors Instruments Construction Manipu
James W Queen
The book Queen Cos Manual of Engineers And Surveyors Instruments Construction Manipu was written by author James W Queen Here you can read free online of Queen Cos Manual of Engineers And Surveyors Instruments Construction Manipu book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Queen Cos Manual of Engineers And Surveyors Instruments Construction Manipu a good or bad book?
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, INC. , PHILADELPHIA. 'QUEEN" SURVEYORS' TRANSfT. A 1504. Surveyors* Transit, has achromatic telescope 1 1 inches long. Power of telescope about 24 diameters. Improved rack and pinion movement to object slide ; straight draw focussing arrangement to eye-piece; 2o-second ground level 6 inches long, mounted under telescope. Clamp and opposing spring tangent screw to axle of telescope. Five-inch special magnet steel needle, swung on jeweled centre, supported by* a hardened and well-pointed centre... pin. Variation plate, with improved clamp. Silvered horizontal circle (graduated edge) 6y inches in diameter, graduated to YZ degrees, with double verniers reading to single minutes. Figuring of graduations on circle, in two rows, from o to 360 in opposite directions. Clamp and opposing spring tangent to horizontal limb and centres. Two graduated right angle levels, one placed on horizontal circle and one on left-hand standard. Capped and packed leveling screws. Shifting centre tripod head ; solid leg tripod ; hardwood box, contain- ing sunshade, plumb bob, screw driver and adjusting pins.
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