Mechanical Engineering

On August 18, 1900, Catherine Dorothea Bogle of London was granted a patent for an innovative golf ball retriever. Her device featured a spring clip that could be attached to a golf club, allowing players to retrieve balls from the hole without bending down.

On June 23, 1894, Clara Hedwig Martini of Leipzig was granted a patent for developing a novel floating device. Her invention featured a lightweight floating structure, designed to facilitate swift movement through the water.

On February 17, 1898, Cora Alma Polson of Riley, Kentucky, was granted a patent for an innovative poultry perch. Her design not only provided a stable roosting spot for poultry but also helped keep parasites away, ensuring healthier birds and improved hygiene.

On May 11, 1895, Cora Ann Slocomb di Brazzà Savorgnan of Moruzzo, Italy, was awarded a patent for inventing a novel bearing designed to reduce friction in bicycles. Date of Application: 11 May 1895

On June 11, 1918, Dorothy Hooper, a UK citizen living in Nahant, Massachusetts, was granted a patent for inventing a novel inflatable raft. The raft featured multiple independent air compartments designed to maintain stability and could be easily folded for storage.

On October 6, 1894, Eliza Dalton, a gentlewoman of Argyle (New South Wales), obtained a patent for a novel device that let carts or carriages be oiled without removing the wheels or axle caps.

On November 28, 1922, Eudora M. Campbell of Wilkes-Barre, Pennsylvania, patented an innovative thread-holding and cutting device for sewing machines. Her design featured a presser bar, a supporting clip, a pair of clamping arms, and a cutting blade, all arranged to make thread cutting and severing more efficient.

On October 25, 1902, Franziska Gangloff, a resident of Rožmitál, Czech Republic, was awarded a patent for developing a novel head for scraping knives, specifically designed to process the wide side surfaces of shingles on shingle machines.

On February 10, 1949, Franziska Herzberg, a resident of Graz, was awarded a patent for developing a novel luggage rack and child seat for the front wheel of bicycles. The invention featured a lighter and simpler design intended to reduce stress on the wheel.

On December 28, 1925, Franziska Joksch of Vienna received a patent for developing a novel multiplication device aimed at expediting calculations and reducing the range of multiplication tasks. This device builds upon earlier innovations, incorporating individual tables up to 1000 and a small set of simple tools to facilitate efficient computation, especially for common uses in small businesses.