Features
Tesca Tension Coefficient Apparatus consists of a jib restrained by two chain  ties making a triangulated three dimensional structure. The jib and both ties are fitted with spring  balances so that the internal forces can be measured.  
The bottom of the jib is pivoted to the wall mounted plate and the tie attachment locations can be varied independently at their wall ends.  

A load is hung from the jib end, and the geometry returned to its unloaded state using a knurled collar  before taking the spring balance readings 

Specifications
Determination of forces induced in individual frame members; find theoretical forces by method of  tension coefficients; study of three dimensional equilibrium.  
The wall mounted apparatus consists of a jib pivoted to the wall, and two ties. All incorporate direct  reading spring balances to measure the internal forces.  
Equipped with two units of dynamometers of range 100N @ 300nn x 20mm  
A load is hung from the jib by a load hanger.  
The vertical springing of the ties independently variable.  
The jib and ties re-adjustable to original lengths.  
Dimensions: 500x600x450mm  
An instruction manual for student and lecturer provided.  
Set of weights.  
1m ruler supplied  

Experiments

1. To determine experimentally forces induced in individual frame members  
2. To calculate the theoretical forces induced, using the method of tension coefficients  
3. To compare the experimental and theoretical results  
4. To repeat for other frame configurations  

Operating Conditions
Operating environment: Laboratory  
Storage temperature range: –10oC to +55oC (when packed for transport)  
Operating temperature range: +10oC to +50oC  
Operating relative humidity range: 80% at temperatures < 31oC decreasing linearly to 50% at 40oC