the maximum possible angle of inclination # for the conveyance of product X with belt Y can be determined by a simple method. Fix a sample belt (1)on a fixed support, such as a wooden board (2)
, and place on it one or more of the goods to be conveyed (3). Now incline the support untill the goods start to slide. Measure the gradient height $, just before sliding starts and divide this height by the length of support ; in this way you obtain the