Nelson's Encyclopaedia: Everybody's Book of Reference ...Thomas Nelson, 1913 |
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الصفحة 53
... ship's stern , and was made to revolve from inside . In 1787 Fitch experimented with a screw steamer on the Delaware R. In 1799 Dr. Shorter obtained a patent Common Forms of Screw- propeller . 1. Griffith's . 2. Thornycroft's . for a ...
... ship's stern , and was made to revolve from inside . In 1787 Fitch experimented with a screw steamer on the Delaware R. In 1799 Dr. Shorter obtained a patent Common Forms of Screw- propeller . 1. Griffith's . 2. Thornycroft's . for a ...
الصفحة 54
... ship . Three and four screws have also been used , and have given satisfactory re- sults . In turbine - engined ves- sels the screws are made of small diameter on account of their rapid rotation . Screws are made of cast iron , cast ...
... ship . Three and four screws have also been used , and have given satisfactory re- sults . In turbine - engined ves- sels the screws are made of small diameter on account of their rapid rotation . Screws are made of cast iron , cast ...
الصفحة 60
... ship - carver whose allegorical statue of the Schuylkill River stands in Fairmount Park , Phila- delphia , and John Frazee , the first native sculptor to make a ( By Augustus St. Gaudens . ) ton Capitol , and the bronze doors of the ...
... ship - carver whose allegorical statue of the Schuylkill River stands in Fairmount Park , Phila- delphia , and John Frazee , the first native sculptor to make a ( By Augustus St. Gaudens . ) ton Capitol , and the bronze doors of the ...
الصفحة 67
... ships must be staunchly built to make their way through the ice and to withstand its pressure . The busi- ness is a hazardous one , attended with danger to vessels and hard- ship to the men . Not infrequently ships are lost ...
... ships must be staunchly built to make their way through the ice and to withstand its pressure . The busi- ness is a hazardous one , attended with danger to vessels and hard- ship to the men . Not infrequently ships are lost ...
الصفحة 68
... ship from falling off into the trough of the seas . If the ship is not hove to , she must be kept before the wind , or what is termed ' running . ' As she is then moving n the same direction as the wind , its force is not felt so much ...
... ship from falling off into the trough of the seas . If the ship is not hove to , she must be kept before the wind , or what is termed ' running . ' As she is then moving n the same direction as the wind , its force is not felt so much ...
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