The Electrical Machine is a static energy generator that works by rubbing the leather pad against the spinning glass globe to produce a static electrical charge in the globe. Franklin owned this apparatus and used it in his experiments and demonstations., LCP Minutes vol. 3, June 12, 1792, p. 312: Benjamin Franklin Bache presented to the Company the Machine, which Doctor Franklin first used to make Experiments in Electricity., Gift of Benjamin Franklin Bache, 1792., Exhibited in: University of Pennsylvania's exhibition, Benjamin Franklin Winston Churchill (1951); Benjamin Franklin: In Search of a Better World (2005-2007).
Used in electrical experiments., See Library Company Minutes vol. 1, May 1, 1738-Oct. 11, 1742, p. 74, 76, 83, 86, 94, 125-126, for discussion about the air-pump and glass implements., Exhibited in the University of Pennsylvania Library’s exhibition, Benjamin Franklin Winston Churchill (1951).
