Patent ID: 7295895

Claim:
A method of measuring the quantity of wrap remaining on a round baler supply roll comprising: using a control sequencing machine with a memory and calculating capability and; entering into the machine memory the length of wrap on the supply roll; the number of layers of wrap to be put onto each bale; and the diameter of the bales to be formed; programming the machine: (a) to calculate the minimum amount of wrap needed for each bale; (b) to check if the wrap remaining on the roll is less than the minimum amount needed to cover a bale; (c) if the wrap remaining on the roll is less than the minimum amount needed to cover a bale, to generate an empty warning signal for the operator; (d) to then initiate the action of wrapping a bale; (e) to accept a signal from a wrap length measuring device indicating the amount of wrap used to wrap the bale, to subtract the amount of wrap used to wrap the bale from the amount of wrap on the roll when wrapping the bale began, and to update the amount of wrap on the roll; and (f) to repeat steps (a) through (e) of the program.