Mechanical Engineering

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 May 25, 1908, Franziska Leser, a German inventor from Munich, was granted a patent for developing an innovative device to dry out damp walls. Her invention featured a system of air inlets and wires to ensure constant and extensive air circulation.

On May 31, 1931, Abele Catti of Locarno, Switzerland, was awarded a patent for inventing a novel switching device for electric irons. The device featured a toggle switch that, by means of a plug, could be connected to a support to keep the iron in an upright position or in a working position, depending on the need.

On June 27, 1939, Albina Cerveny of Highland Park, Michigan, was awarded a patent for developing a novel brake indicator. Her invention alerted drivers when the emergency or parking brake was still engaged as the engine started, helping to prevent damage to the vehicle and improve safety.

On May 18, 1895, Amelia Noel, a noblewoman of Cardiff, was awarded a patent for improvements to pipe making machinery. Specifically, she proposed enhancing the machine by reducing the pressure needed to shape socket ends.

On February 17, 1894, Anna Siebert, a noblewoman living in Darmstadt, Germany, was awarded a patent for improvements to the chain stitch used in a lockstitch sewing machine, which she had been previously registered in 1891.

On September 23rd, 1909, Augusta Amelia Gleitsmann, a gentlewoman from Stuttgart, Germany, patented an innovative insulating slab for walls, roofs, and ceilings. Her design featured two metal plates enclosing slag wool, forming a fire-resistant, interlocking block for improved thermal insulation.

On November 23, 1911, Bianca Comparini Bertelli and Albina Rossi Capecchi of Fiesole, Italy, received a patent for new methods of making artificial flowers, leaves, fruits, feathers, and birds using ramie or similar plant fibres.

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 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.