Linen manufacture in the United States

✍ Scribed by W.

• Publisher: Elsevier Science
• Year: 1901
• Tongue: English
• Weight: 186 KB
• Volume: 152
• Category: Article
• ISSN: 0016-0032
• DOI: 10.1016/s0016-0032(01)90112-7

✦ Synopsis

The apparatus employed consisted of a portable windlass containing 3,(x×~ feet of wire, three Itargrave kites having a total lifting surface of 8o square feet, and an instrument for recording temperature, pressure and wind velocity and humidity. This outfit was installed on the upper deck of a tug in Massachusetts Bay, on August 22d. Two flights were made and the greatest heights reached were 2,63o and 2,67o feet. With more wire at~d kites much greater heights could have been obtained. The natu,al Mud varied between six and eleven miles an hoar, and was much too light to elevate the kites and apparatus, but by steaming against the wind the velocity relative to the tug and kites was increased to between fourteen and nineteen miles an hour. 1,1 this artificial wind the kites rose easily, and so steadily that they could be let out from and hauled into hand without the slightest risk to kites or instrmnents. The kites were very sensitive to alterations o f the course of the tug, and began to fall whenever the course varied 3 °0 to 5 °0 on either side of the mean direction of the wind. The experiment shows that meteorological records at great heights may easily be obtained during cahns or very light winds by means of kites flown from a rapidly moving steamer ; and that it is now possible for the observer and student to work nninterruptedly under almost all conditions of wind and weather.

LINFN I~IANUFACTURE IN TIlE UNITED STATES.