Patent Drawing for E. Berliner’s Gramophone, 11/08/1887
While this drawing shows one of Emile Berliner’s early cylinder-style Gramophones (a format first patented by Thomas Edison), he would go on to develop the well known disc format record that would eventually replace cylinder recordings.
Need a Halloween costume for your pet chicken? Jackson’s patented Eye Protector could be a good start.
Patent of the Month
The National Archives contains many archival gems. To share some of my favorites, I am starting a new feature for the blog, Patent of the Month.
Read the full post on the AOTUS blog.
Eli Whitney’s Cotton Gin Patent Drawing
Designed to separate cotton fiber from seed, Whitney’s cotton gin, for which he applied for a patent on October 28, 1793, and received a patent on March 14, 1794, introduced a new, profitable technology to agricultural production in America, but also led to an increased dependence on the plantation system and slavery.
Need a knock ‘em dead prop for your haunted house? Try Eisenbrant’s spring loaded “Life-Preserving Coffin!”
"Life-Preserving Coffin, In Doubtful Cases of Actual Death"
Drawing for a Life-Preserving Coffin, 11/15/1843
The fear of being buried alive led Christian Henry Eisenbrandt to patent a “life-preserving coffin in doubtful cases of actual death.” In his application, he claimed that through a series of springs and levers, even the slightest motion of the head or hand would instantaneously open the coffin lid.
(Also fun at parties)
#FirstWorldProblems - Polishing safety deposit boxes
On September 8, 1903, Emil A. Strauss was granted a patent for his improvement on the safety deposit box. According to his application, until his invention, the entire safety deposit box had to be removed in order to polish it, which meant the owner had to be present. He states that his invention allows for “boxes with removable fronts, so that they may be polished … without disturbing the renters.”
Patent Drawing for E. D. Bean’s Shooting Jacket, 07/19/1892
Sarah P. Mather’s Submarine Telescope, 07/05/1864
From the Patent and Trademark Office series: Utility Patent Drawings, 1837 - 1911
An improvement over a prior patent she submitted in the 1840s, Sarah Mather’s Submarine Telescope is one of the earliest scientific instruments credited to a female inventor.
And don’t forget to check out our #Patent tag for more American originals!
Patent Drawing for a Staple Machine, 06/23/1903
On June 23, 1903, the Patent Office granted Robert K. Marple’s patent for the staple machine. In his application, he states that “it has as its primary object to produce a simplified machine … and to render the parts readily changeable in order to adapt the mechanism to the character of the work.”
On May 20, 1873, Jacob W. Davis of Levi Strauss & Co. received patent #139,121 for an “improvement in fastening pocket openings.” Davis’s improvement consisted of “the employment of a metal rivet or eyelet at each edge of the pocket opening to prevent the ripping of the seam at those points.”
In a deposition given during a patent infringement lawsuit in 1874, Davis recounts the story of how he came to first use rivets on work pants. He explains how, in January 1871, a woman asked him to make a pair of pants for her husband and to make them strong. Before working on the pants, he had been using rivets to attach straps to horse blankets, and when he noticed the rivets lying on the table, he thought to use them to attach the pockets.
Patent Drawing for J. W. Davis’ Fastening Pocket Openings, 05/20/1873