Science Museum, South Kensington, London .
Demonstration model of Babbage's Difference Engine No. 1.
H.P. Babbage
A model to demonstrate the Calculating Part of Difference Engine No. 1.
This was one of approximately six demonstration models of the calculating mechanism of Difference Engine No 1 assembled by Henry Prevost Babbage after his father's death, from parts rescued from the meltdown of the original after the project was abandoned.
Trial Model for part of Babbage's Difference Engine No. 1. Presented by University College London. One of the five or six made by H.P. Babbage from the surviving parts of Difference Engine No. 1 in 1888. INV 1967-70. This fragment has one figure wheel adding to two.
The museum also has
Spare parts and trial pieces (brass/gun metal) from Babbage's Difference Engine No. 1. Presented by King's College, London. INV 1971-267. Included in the collection are 2 Framing Plates, a Bolting Lever, a Carry Warning Lever, some Roller Levers, a Lower Calculating Wheel, several Number Rings, an uninscribed Figure Wheel Drum, a Snail Wheel, some Plate Spacers or Columns Sockets and a set of 4 gear wheels (of unidentified purpose) with triangular cog teeth similar to those found in the Oxford Museum of the History of Science
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