By awarding inventors a temporary monopoly on their inventions, the patent system encourages them to exploit them rather than hiding the ideas a way for fear of them being stolen. The pace of development increases with this encouragement.
John Gorrie patented an ice machine in 1851.
Patents apply to any machine created under that patent until the patent expires. It does not matter how many times the machine is used or how many times it changes hands, the patent is still a patent.
Cyrus McCormick received a patent on his 'perfected' mechanical reaper in 1834, but Cyrus himself was not sole originator of the idea. His lifetime of innovations were in large part influenced by prior work of his own father and a number of other contemporary inventors. McCormick's patents were also the subject of a number of patent infringement cases throughout the inventor's lifetime as he tried to claim rights to what he "patented first." He received another patent on improvements to this machine in 1845, but it was not until the later 1840s that he began achieving more commercial success.
June 21, 1834.
In US patent practice, the terms you're using, "full patent" and "mechanical patent," don't have any meaning. The United States Patent and Trademark Office grants three types of non-provisional patents: design patents, plant patents, and utility patents. They protect different things; one doesn't "override" the other.
Charles Weisenthal was the first inventor of the sewing machine, a German, and he was issued a patent for a needle that was designed for a machine, however, the patent did not describe the rest of the machine if one existed.
Hamilton E Smith was born on May 2, 1837. He received the first patent for a mechanical washing machine in 1858.
Walter Hunt was from the state of New York. He was the first to build a working sewing machine, but he didn't patent his invention. He did not want to cause seamstresses to loose their jobs. Elias Howe was from the state of Massachusetts and invented the first Automatic Sewing Machine. Howe obtained the first patent for the machine. Both are American inventors from the east coast of United States.
Greenough did not commercially manufacture his invention and his patent model remains as the only evidence. So his machine is simply called the "Sewing Machine Patent Model."
Sewing machine.
Yes, if you have a new and non-obvious chemical or mechanical way to improve the art, you may be entitled to a patent.
The answer to your question is yes he was granted an American patent in 1851 and it was suggested he take out a patent on the treadle (foot plate) also but it was too late to do this as it had been in use too long. In 1885 Singer also patented the Singer Vibrating Shuttle sewing machine.