Water Supply: The Present Practice of Sinking and Boring Wells, with Geological Considerations and Examples of Wells ExecutedSpon, 1875 - 217 pages |
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Page 52
... for applying at the surface a small exhaust fan to which is attached lengths of tubing extending down the well . Another good plan is to pass a 4 or 6 inch pipe down the well , bring it up with a long bend at. 52 WELL SINKING .
... for applying at the surface a small exhaust fan to which is attached lengths of tubing extending down the well . Another good plan is to pass a 4 or 6 inch pipe down the well , bring it up with a long bend at. 52 WELL SINKING .
Page 56
... attached to a set of boring - rods and turned from above . The valve in the old form of mizer is sub- ject to various accidents which interfere with the action of the tool ; for instance , pieces of hard soil or rock often lodge between ...
... attached to a set of boring - rods and turned from above . The valve in the old form of mizer is sub- ject to various accidents which interfere with the action of the tool ; for instance , pieces of hard soil or rock often lodge between ...
Page 57
... attached to a central shank by means of stays . Fig . 34 . 1 Fig . 35 . Fig . 36 . 35 and 36 . The of the The shank extends some 7 inches beyond the bottom , and ends in a point , while the upper part of the shank has an open slot , to ...
... attached to a central shank by means of stays . Fig . 34 . 1 Fig . 35 . Fig . 36 . 35 and 36 . The of the The shank extends some 7 inches beyond the bottom , and ends in a point , while the upper part of the shank has an open slot , to ...
Page 66
... consists of a block made to fit inside the end of the tube , and attached to the rods in the usual way . In the side of the block is fixed an iron stud for slipping into a slot , similar to 66 WELL BORING . Glass Frame ditto ditto.
... consists of a block made to fit inside the end of the tube , and attached to the rods in the usual way . In the side of the block is fixed an iron stud for slipping into a slot , similar to 66 WELL BORING . Glass Frame ditto ditto.
Page 68
... attached ; D D the levers by which the men E E give a circular or rotating motion to the tool ; F , chain for attaching the boring apparatus to the pole G , which is fixed at H , and by its means the man at I transmits a vertical motion ...
... attached ; D D the levers by which the men E E give a circular or rotating motion to the tool ; F , chain for attaching the boring apparatus to the pole G , which is fixed at H , and by its means the man at I transmits a vertical motion ...
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Autres éditions - Tout afficher
Water Supply: The Present Practice of Sinking and Boring Wells. With ... Ernest Spon Affichage du livre entier - 1885 |
Water Supply: The Present Practice of Sinking and Boring Wells. With ... Ernest Spon Affichage du livre entier - 1885 |
Water Supply: The Present Practice of Sinking and Boring Wells, with ... Ernest Spon Affichage du livre entier - 1875 |
Expressions et termes fréquents
Banister Fletcher beds Blue Clay Boilers bore-hole boring rod boring tool boring-head bottom Brewery brick brickwork bucket Butte-aux-Cailles cast-iron chalk chisel Civil Engineers cloth CONTENTS Construction crown 8vo cuts depth Ditto Edmund Sharpe excavation feet deep feet O.D. flints foot Formulæ gallons a day gallons a minute grapnel gravel greensand Grey Hedgerley hole Hydraulic illustrated inches diameter Isometric Projection joint Keuper length lever London clay lower Lower Tertiary Machinery Marl means Mechanical Memoranda mottled clays numerous OOLITE outcrop passed Passy Pebbles pipe piston plates Pocket-Book post 8vo pump quantity Railway rainfall READING BEDS RED SAND red sandstone River rock rope royal 8vo Screw Propeller screwed second edition sewed shaft shell shown in Fig sinking Slide Steam steining stone strata stratum stroke sunk surface Surface Condensers Tables thickness tion trepan tubbing tube upper valve vertical water-bearing strata Waterworks weight wood engravings wrought-iron yield
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