Ads
related to: first mechanical pencil patent
Search results
Results From The WOW.Com Content Network
Between 1822 and 1874, more than 160 patents were registered pertaining to a variety of improvements to mechanical pencils. The first spring-loaded mechanical pencil was patented in 1877. Two of the most popular 19th-century lead sizes were 1.5 and 1.03 mm, "VS" and "M", respectively.
He became renowned for further development of the mechanical pencil (1906) [4] - then called an "automatic pencil" - and the first solid-ink fountain pen (1907). [5] On 24 January 1906 he registered the patent for an automatic pencil.
Silver mechanical pencil Catalogue from 1898. Sampson Mordan (c. 1790 – 9 April 1843) was a British silversmith and a co-inventor of the first patented mechanical pencil. During his youth, he was an apprentice of the inventor and locksmith Joseph Bramah, who patented the first elastic ink reservoir for a fountain pen.
Hymen L. Lipman (c. 1817/1823 – November 4, 1893) is credited with registering the first patent for a pencil with an attached eraser on March 30, 1858 (U.S. patent 19,783). Hymen L. Lipman was born March 20, 1817, in either Kingston, Jamaica or in the Bahamas, to English parents.
Hawkins was born 14 March 1772 at Taunton, Somerset, England, [1] the son of Joan Wilmington and her husband Isaac Hawkins, [2] a watchmaker. The father, Isaac Hawkins, would become a Wesleyan minister, but was expelled by John Wesley; and after moving the family to Moorfields in London he was a minister in the Swedenborgian movement, which John Isaac would also follow.
Joseph Dixon (1799–1869) was an inventor, entrepreneur and the founder of what became the Dixon Ticonderoga Company, a well-known manufacturer of pencils in the United States. His fascination with new technologies led to many innovations such as a mirror for a camera that was the forerunner of the viewfinder , a patented double-crank steam ...