Trisse og kors

International names:

Pulley; Rolle/Scheibe; Poulie; Trochlea

English description:

Pulley stand

Danish Instrument Inventory text:

Pulley stand. Mahogany. To demonstrate that a pulley wheel can be considered equivalent to 2 levers joined at one end in a right angle. It also demonstrates that the length of the cord's contact with the pulleys has no influence on the equilibrium. Wooden base 485x120. Overall H545.Not signed1800 app (g)

• Category: Statics
• Hauch number: B35
• Inventory number: 650
• Danish Instrument Inventory number: 93

• Hauch references:
• Begynd.grund: §126
• Cabinet 1: Bd.1 p.102; pl.17 fig.6

• Literature:
• Nollet, J. A.: 3,09436
• Sigaud de Lafond : 1,1307
• Martinus van Marum: 13
• Cataloque of Mechanical Instruments, Museo di Storia della Scienza, Firenze: 2,17