HFC14 Wall Jib Crane

HFC14 Wall Jib Crane

Although wall jib cranes are obsolete, the self evident confluence of the four forces at the end of the jib illustrates the application of a triangle of forces so clearly to a real situation that this is an invaluable lesson.

This wall mounted self-contained jib crane has spring balances built into its two members. After loading the member lengths can be adjusted to their no-load lengths.

The jib out-hangs and the crane cable inclination can be readily changed HFC14 Wall Jib Crane

HFC14 Wall Jib Crane
  • Determination of forces in the crane members
  • Confirmation by theory and polygon of forces
  • The wall mounted crane consists of a compression jib, and a tension tie which is adjustable, and both incorporate a linear, direct reading spring balance to measure the forces in them
  • A load hanger applies loads through the junction of the two
  • Folds flat when not in use. Jib and ties re-adjustable to the original length
  • Set of weights
  • Comprehensive technical manual
  • Set of slotted weights included
  • 2 year warranty


  • Comparison of measured forces with a triangle of forces and theoretical values
  • Comprehension of the action of the crane cable forces on the jib and the effect of the jib inclination