US PATENTS IN 1880

DESCRIPTIONS AND CLAIMS OF SEVERAL AMERICAN PATENTS ISSUED IN THE YEAR 1880

 

This list of patents is far than be complete, further researches will be done, including patents for Needles and Knitting Machines.

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JANUARY 6, 1880

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FIRST US PATENT FOR THE YEAR 1880

US 223.211

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FEBRUARY 1880

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MARCH 1880

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APRIL 1880

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MAY 1880

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JUNE 1880

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US 228.820                           George Juengst

Sewing Machine

This invention is, in part, applicable to all kinds of sewing machines, but some features of it are or may be limited in their application to machines of one or more particular classes; but the whole invention is capable of embodiment in a single machine, as illustrated in the accompanying drawings. One part of my invention relates to the take-up for taking up the needle-thread. The kind of take-up which employ is that in which the principal element is a vibrating arm or lever and this part of my invention consists in a novel construction and arrangement of the said lever and novel means of operating and controlling the operation of the same, whereby its efficiency is increased. Another part of my invention relates to the mechanism for feeding the cloth or material to be sewed. This part of my invention consists in a novel system of separately-adjust able fulcrum-slides and fulcrums for separately varying the movements of the feed-lever both horizontally and vertically, and thereby varying the relative horizontal and vertical movements of the feed-dog. This improvement in the feeding mechanism is applicable to sewing machines of various kinds. Another part of my invention relates to that class of sewing machines in which a loose bobbin-holder or thread-case containing the secondary or locking thread is arranged within an oscillating hook, which is employed to extend the loop of the needle-thread and it consists in a combination of the feeding-dog with the bobbin-holder, whereby the feeding dog in its downward motion is made to press on the bobbin-holder and so made to press the latter away from the position to which it has been brought in the tightening of the last previously-formed stitch, so that when the dog rises again the bobbin-holder may be left free for the passage of the loop of the needle-thread over or around the bobbin. This part of my invention also embraces means of providing for a regulated pressure of the feeding-dog.

June 15, 1880

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JULY 1880

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AUGUST 1880

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SEPTEMBER 1880

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OCTOBER 1880

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NOVEMBER 1880

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DECEMBER 1880

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DECEMBER 28, 1880

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LAST US PATENT FOR THE YEAR 1880

US 236.136

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US PATENTS IN ...

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           1842   1843   1844   1845   1846   1847   1848   1849   1850  

1851   1852   1853   1854   1855   1856   1857   1858   1859   1860  

1861   1862   1863   1864   1865   1866   1867   1868   1869   1870  

1871   1872   1873   1874   1875   1876   1877   1878   1879   1880  

1881   1882   1883   1884   1885   1886   1887   1888   1889   1890  

1891   1892   1893   1894   1895   1896   1897   1898   1899   1900  

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The United States Patent and Trademark Office (USPTO)

Google Patents

Report of the Commissioner of Patents for the Year 1880