Rudimentary treatise on mensuration and measuring |
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Σελίδα 93
... stations , & c . THE CROSS . The cross is an instrument used by surveyors to erect per- pendiculars . It is usually a round piece of sycamore , box , or mahogany , about four inches in diameter , with two folding sights at right angles ...
... stations , & c . THE CROSS . The cross is an instrument used by surveyors to erect per- pendiculars . It is usually a round piece of sycamore , box , or mahogany , about four inches in diameter , with two folding sights at right angles ...
Σελίδα 94
... station on the line , while it is being measured , with a staff or cross on the ground , entering its distance in the field book . When a survey is made for a finished plan , all remarkable objects should be noted down ; as buildings ...
... station on the line , while it is being measured , with a staff or cross on the ground , entering its distance in the field book . When a survey is made for a finished plan , all remarkable objects should be noted down ; as buildings ...
Σελίδα 96
... stations , or other marks are made ; and in the right and left columns , those offsets , marks , and any other necessary observations thereon , must be entered , accordingly as they are situated on the right or left of the chain - line ...
... stations , or other marks are made ; and in the right and left columns , those offsets , marks , and any other necessary observations thereon , must be entered , accordingly as they are situated on the right or left of the chain - line ...
Σελίδα 97
... station 2 , and to the left of station 5 , respectively . NOTE . Another approved and excellent method of setting down the work is , to draw by the eye on a piece of paper , a figure resembling that which is to be measured ; and then ...
... station 2 , and to the left of station 5 , respectively . NOTE . Another approved and excellent method of setting down the work is , to draw by the eye on a piece of paper , a figure resembling that which is to be measured ; and then ...
Σελίδα 100
... Station Line . Perpendiculars on right . to C 3250 2504 1046 D B 1278 1272 Begin at A and range West . Content . 37a . 3r . 2p . 3. Give the plan and area of a field from the following notes . A C 872 B 652 731 423 545 C Begin at A and ...
... Station Line . Perpendiculars on right . to C 3250 2504 1046 D B 1278 1272 Begin at A and range West . Content . 37a . 3r . 2p . 3. Give the plan and area of a field from the following notes . A C 872 B 652 731 423 545 C Begin at A and ...
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Συχνά εμφανιζόμενοι όροι και φράσεις
12 feet 20 feet A B C AMEN CORNER axis Baker's Land base bottom width centre chains Charles Tomlinson chord circle circular circumference content in cubic correction for curvature cubic feet cubic foot cubic yards curve decagon decimals depths diagonal diameter distance Duodecimals Engineering Surveying equal EXAMPLES feet 6 inches feet long figure find the area find the content find the solidity foot fore sights formula frustrum given ground half height instrument Land and Engineering length level book measured method miles multiply NOTE offsets parabola perpendicular polygon Prob PROBLEM pyramid quantity quarter girt radius railway cutting refraction required the area Required the content RULE RULE.-Multiply S. P. Woodward screws segment side slopes SLIDING RULE spirit level square feet square yards staves subtract Table tangent telescope trapezium VIRTUE BROTHERS W. D. Hamilton zone
Δημοφιλή αποσπάσματα
Σελίδα 3 - The circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; and each degree into 60 equal parts, called minutes ; and each minute into 60 equal parts, called seconds ; and these into thirds, &c.
Σελίδα 51 - The sphere may be conceived to be formed by the revolution of a semicircle about its diameter, which remains fixed.
Σελίδα 5 - Is. 6d. 76. GEOMETRY, DESCRIPTIVE, with a Theory of Shadows and Perspective, and a Description of the Principles and Practice of Isometrical Projection, by JF Heather.
Σελίδα 51 - A sphere is a solid bounded by a curved surface, every point of which is equally distant from a point within called the center.
Σελίδα 4 - SHIP-BUILDING AND NAVIGATION. 51. NAVAL ARCHITECTURE, by J. Peake. 3s. 53*. SHIPS FOR OCEAN AND RIVER SERVICE, Construction of, by Captain HA Sommerfeldt. Is. 53**.
Σελίδα 145 - EMIGRANT'S GUIDE TO TASMANIA AND NEW ZEALAND, by James Baird, BA [In Preparation. FINE ARTS. 20. PERSPECTIVE, by George Pyne. 2s. 27. PAINTING ; or, A GRAMMAR OF COLOURING, by G. Field. 2s. 40. GLASS STAINING, by Dr. MA Gessert, with an Appendix on the Art of Enamel Painting, &c.
Σελίδα 81 - Large and plain articles are usually measured by the square foot or yard, &c; but enriched mouldings, and some other articles, are often estimated by running or lineal measure •, and some things are rated by the piece. In measuring of Joists...
Σελίδα 86 - GLAZIERS' WORK. — Glaziers take their dimensions either in feet, inches, and parts ; or feet, tenths, and hundredths. And they compute their work in square feet. In taking the length and breadth of a window, the cross bars between the squares are included. Also, windows of round or oval forms are measured as square, measuring them to their greatest length and breadth, on account of the waste in cutting the glass.