WORLDKINGS - On This Day – March 30, 2022 – The first U.S. patent for a combination lead pencil and eraser was issued to Hyman L. Lipman, in 1858

30-03-2022

(Worldkings.org) In 1858, the first U.S. patent for a combination lead pencil and eraser was issued to Hyman L. Lipman, of Philadelphia, Pa. (No. 19,783).

The pencil was made in the usual manner, with one-fourth of its length reserved inside one end to carry a piece of prepared india-rubber, glued in at one edge.

 

Thus cutting one end prepared the lead for writing, while cutting the other end would expose a small piece of india rubber. This eraser was then conveniently available whenever needed, and not subject to being mislaid.

Further, the eraser could be sharpened to a finer point to make a more precise erasure of fine lines in a drawing, or cut further down if the end became soiled.

According to todayinsci


Brian (Collect & Edit) - WORLDKINGS (Source of photos : internet )

 

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