ADJUSTABLE TOURNAMENT HOOP SETTING GAUGE
The adjustable gauge with inbuilt spirit level. The optional orange cube is a spacer which can be placed on the ground between the hoop legs so that when the gauge is rested on it, the gauge is at mid ball height.
To use the gauge, slacken the thumb wheel called ‘Lock’ and using the other thumb wheel adjust the width of the gauge until it is a close fit to the largest diameter of the largest ball for that lawn. Tighten the ‘Lock’.
Place the orange cube on the ground between the hoop legs and offer the tapered section of the gauge into the gap until it just contacts both sides. Use the spirit level to check that the gauge is horizontal. Then using the graduations on each side it is possible to read off the gap is between ball diameter and the hoop. For example it may be between 1/16″ and 3/32″ indicating that the hoop needs to be tightened if 1/16″ is required.
The contact parts of the gauge have 3mm x 3mm section brass inserts to prevent wear. This photo if of an early version of the gauge without the spirit level or vernier
A vernier is included to give an indication of the size of the ball compared to the standard ball size. When the centre lines of the vernier align the gap between the jaws is the standard ball size. In this case the vernier reads 0.8mm oversize which is on the limit of the permitted tolerance of +/- 0.8mm for the ball diameter.
Optional cups are available for gluing to the jaws to to make it easier to hold the ball so that the horizontal diameter is in the depth of the gauge jaws. There are plastic pins to ensure correct alignment when gluing. Glue provided.
