Smeaton's pulleys
Datebefore 1815
Inventory Number1999-1-0036
ClassificationWeights and Pulleys
Subject
Maker
W. & S. Jones
fl. 1791 - 1859
Cultural Region
Place of Origin
Dimensions3.5 x 54 x 12 cm (1 3/8 x 21 1/4 x 4 3/4 in.)
large pulley: 10.5 cm (4 1/8 in.)
pulley set up with weight hanging: 12 cm (4 3/4 in.)
pulley hanging with weight level: 54 cm (21 1/4 in.)
large pulley: 10.5 cm (4 1/8 in.)
pulley set up with weight hanging: 12 cm (4 3/4 in.)
pulley hanging with weight level: 54 cm (21 1/4 in.)
Material
DescriptionHanging demonstration model of Smeaton's pulleys, made of brass with two brass lead-filled weights, one of 90 oz. Troy and the other of 12 oz Tr..
Signedunsigned, but sold by W. & S. Jones
FunctionDemonstration of mechanical powers, showing how a 12 oz Troy weight can be used to balance a 90 oz Troy weight.
Historical AttributesDescribed in "Philosophical Apparatus and Professorship of Natural History" p. 19, W. & S. Jones bill dated 9th August, 1815 (Archives VAT* 15 960) as "A set of Smeaton's Pullies in brass £2-10-0". See Jones list, page 6.
English
Date: circa 1820
Accessories: 5 brass weights, brass holder, piece of lead
Object number: DW0227
W. & S. Jones
Date: circa 1804
Object number: 0077d
American
Date: mid 19th-early 20th Century
Accessories: brass rod/holder
Object number: 3812
Central Scientific Company
Date: circa 1929
Object number: 1998-1-1848
W. & S. Jones
Date: circa 1804
Object number: 0077b
Percy Williams Bridgman
Date: early 20th-mid 20th Century
Object number: 2002-1-0101
W. & S. Jones
Date: circa 1799
Accessories: original curatorial cards (in instrument file); typed draft of curatorial card on white paper from January 1967 (in instrument file); two black and white photos (in instrument file)
Object number: 0066a