Abstract A method intermittently supplying bulk material, especially scrap iron, to a point of use so as to supply thereto a charge equal to a predetermined mean constant rate of supply per unit of time of such material, in which successive discrete quantities of such material are withdrawn, for instance by being elevated by an electromagnet, from a storage area, in which the weight of each withdrawn quantity or partial charge is measured, and in which the time of departure of each charge toward the point of use is calculated as a function of the sum of weights of preceding quantities released, the weight of the elevated quantity and the desired charge, and an apparatus for carrying out the aforementioned steps and to calculate the time periods of releasing successively raised quantities of material.
A method of intermittently supplying bulk material, especially scrap iron, from a first location to a point of use so as to supply to the latter a charge equal to a predetermined constant rate of supply per unit of time of such material, said method comprising the steps of withdrawing a discrete quantity of the material at said first location; measuring the weight of the withdrawn quantity; and releasing the withdrawn quantity for movement toward the point of use at the end of a time period tn calculated as a function of the sum of weights of preceding quantities released, the weight of the withdrawn quantity and the desired charge according to the formula:
Claim 2
Independent Claim
114 words
A method of intermittently supplying bulk material, especially scrap iron, from a first location to a point of use so as to supply to the latter a charge equal to a predetermined constant rate of supply per unit of time of such material, said method comprising the steps of withdrawing a discrete quantity of the material at said first location; measuring the weight of the withdrawn quantity; and releasing the withdrawn quantity for movement toward the point of use at the end of a time period tn calculated as a function of the sum of weights of preceding quantities released, the weight of the withdrawn quantity and the desired charge according to the formula:
Claim 3
Dependent Claim
42 words
A method as defined in claim 1, wherein the start of the period of time at the end of which the respective quantity of material is released is periodically reset to zero in synchronism with the release of a quantity of material.
Claim 4
Dependent Claim
59 words
A method as defined in claim 2, wherein the sum of the weights of the preceding released quantity of material is memorized by a memory, and including the step of setting this memory to a reset value simultaneously with resetting the start of the time period to zero by introducing into the memory a value calculated from the formula:
Claim 5
Dependent Claim
39 words
A method as defined in claim 1, wherein the start of the period of time at the end of which the respective quantity of material is released is set to zero in synchronism with the release of each charge.