Hydraulic Tables, Coefficients, and Formulae, for Finding the Discharge of Water from Orifices, Notches, Weirs, Pipes, and Rivers |
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Page v
... passing over quite uncertain , especially for lesser depths , unless where the observer has a large scientific experience ; and the quantities are generally too large to apply the ordinary notch - gauge . In such cases it is better to ...
... passing over quite uncertain , especially for lesser depths , unless where the observer has a large scientific experience ; and the quantities are generally too large to apply the ordinary notch - gauge . In such cases it is better to ...
Page 55
... passing how universal the coefficients 613 to 628 are for all forms of orifices in thin plates ; or with the outside arrises chamfered . Indeed , the coefficient 62 may always be used with certainty , for practical purposes , for every ...
... passing how universal the coefficients 613 to 628 are for all forms of orifices in thin plates ; or with the outside arrises chamfered . Indeed , the coefficient 62 may always be used with certainty , for practical purposes , for every ...
Page 74
... passing over . On a crest 2 feet wide , with 14 inches depth on the upper edge , we have found that the depth on the lower edge is reduced to 11 inches , or as 1-26 to 1. The head taken from 3 to 20 feet above the crest , where the ...
... passing over . On a crest 2 feet wide , with 14 inches depth on the upper edge , we have found that the depth on the lower edge is reduced to 11 inches , or as 1-26 to 1. The head taken from 3 to 20 feet above the crest , where the ...
Page 75
... passing over . This is a reduction , however , which never takes place unless with a wide crest and at its lower edge , or where the head h is measured at a con- siderable distance above the weir , and when a loss of head due to the ...
... passing over . This is a reduction , however , which never takes place unless with a wide crest and at its lower edge , or where the head h is measured at a con- siderable distance above the weir , and when a loss of head due to the ...
Page 79
... passing hw over , with air under it . Values of the head ʼn divided by the thickness of the sheet of water passing over the weir immediately at the upper edge ; = 1.2 between heads of 3 and 14 inches . Head h in feet . average h ww ...
... passing hw over , with air under it . Values of the head ʼn divided by the thickness of the sheet of water passing over the weir immediately at the upper edge ; = 1.2 between heads of 3 and 14 inches . Head h in feet . average h ww ...
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Common terms and phrases
acre average Avoirdupois Bossut Buât Buât's calculated catchment cent centre channel cloth boards coefficient of discharge coefficient of velocity column contraction cost crest cubic feet cubic foot cylindrical d₁ d₂ diagram diaphragm discharge in cubic Ditto drainage drains Du Buât's Edition effect engine equal equation experiments Falls per mile feet per minute feet per second finding the discharge flowing foot formula friction gallons give given h₁ head due heads measured hydraulic inclination hydraulic mean depth Illustrated inches per second increase Interpolated junction Killaloe length loss of head maximum mean radius mean velocity multiplied nearly notch orifice of entry pipe practical RALPH TATE ratio reservoir Revolutions per minute river RIVER ROBE SCOTT BURN sewers short tube side square square mile supply surface theoretical thin plates tical tion Treatise vary velocity of approach velocity of discharge weir wheel width Woodcuts
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Page 10 - A KEY AND COMPANION to the above Book, forming an extensive repository of Solved Examples and Problems in Illustration of the various Expedients necessary in Algebraical Operations.
Page 8 - Edition, very carefully revised, with the addition of Mr. LAW'S Practical Examples for Setting out Railway Curves, and Mr. TRAUTWINE'S Field Practice of Laying out Circular Curves. With 7 Plates and numerous Woodcuts. 8vo, &f.
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Page 9 - Each table is printed on a small card, which, being placed on the theodolite, leaves the hands free to manipulate the instrument — no small advantage as regards the rapidity of work.
Page 11 - HADDON'S RUDIMENTARY ARITHMETIC. By A. ARMAN. is. 6d. 168. DRAWING AND MEASURING INSTRUMENTS. Including — I. Instruments employed in Geometrical and Mechanical Drawing, and in the Construction, Copying, and Measurement of Maps and Plans. II. Instruments used for the purposes of Accurate Measurement, and for Arithmetical Computations. By JF HEATHER, MA, late of the Royal Military Academy, "Woolwich, Author of '* Descriptive Geometry,
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Page 21 - The engineer or architect will here find ready to his hand rules for solving nearly every mathematical difficulty that may arise in his practice. The rules are in all cases explained by means of examples, in which every step of the process is clearly worked out.