Kræftenes parallellogram

English description:

Parallelogram of forces

Danish Instrument Inventory text:

Parallelogram of forces. Horizontal circular oxidized brass plate Dia213 supported supported on brass pillar and foot. The plate is engraved with force lines and parallelograms. 3 pulleys to be fastened on the edge to carry loads are missing. Overall H206Ref: Van Marum p 145 fig 25.AWH Phys Cab Hefte 1 p 26 Pl 4 fig 8,9,10Not signed1800 app (g)

• Category: Mechanics
• Hauch number: A41
• Inventory number: 320
• Danish Instrument Inventory number: 41

• Hauch references:
• Begynd.grund: §0
• Cabinet 1: p.26, pl.4 fig8

• Literature:
• Nollet, J. A.: 2,05207
• Martinus van Marum: 24

• Desaguliers(1744) pl.24 fig.8

  's Gravesande(1747) pl.14 fig.1

  Adams(1794) III pl.III fig.5