Farm Implements And Farm Machinery And the Principles of Their Construction And
The book Farm Implements And Farm Machinery And the Principles of Their Construction And was written by author John Jacobs Thomas Here you can read free online of Farm Implements And Farm Machinery And the Principles of Their Construction And book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Farm Implements And Farm Machinery And the Principles of Their Construction And a good or bad book?
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A slight pressure, equal to seven or eight pounds, on a lever, causes the rake to revolve ; and it is also readily elevated for back- ing, or for passing obstructions. An important advantage of this rake is, its gathering the hay free from gravel and earth ; also its cheapness recommends it the price being about $35. 170 MECHANICS. SPRING-TOOTH RAKE. The original form of the spring-tooth rake is shown in fig. 188. The teeth were made of stiff, elastic wire, on thej^oints of which the rake ran, ...and not on the flat sides, as in those already described. They bent in pass- ing an obstruction, and sprung back again to their place. Thisj-ake was un- loaded by simply lifting the handles, which was easily done, the rake be- Sprm_ r-tjoih Horsc-rakc. ing light, and about one-half the weight being sustained by the hoi'se. All the spring-tooth rakes made and used at the present time are attached to wheels, and a seat is furnished for the driver. There are many patented modifications, some possessing advantages of greater simplicity, or ease of management ; but all appear to be good and efticient rakes, enabling the operator to gather about twenty-five acres in a day.
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