Boots – shoes – and leggings
Patent
1980-06-25
1982-10-12
Ruggiero, Joseph F.
Boots, shoes, and leggings
731515, 173 6, 175 27, 364156, 364511, G06F 1546, G06G 748, E21C 110
Patent
active
043542336
ABSTRACT:
A system for automatic control of a rotary drill comprises a unit for computing the value of drilling tool penetration per single revolution, said unit connected with its inputs to respective transducers and with its output--to an element for comparison of the current value of drilling tool penetration per single revolution thereof with the preset value of such penetration. The preset value of drilling tool penetration is computed by computer means connected with its inputs to respective transducers and to setters of input parameters. With its outputs, the computer means is connected to the element for comparison of the current value of drilling tool penetration per single revolution thereof with the preset value of such penetration, to regulators of drilling tool axial load and rotation frequency and to an element for comparison of the current value of specific drillability of the rock being drilled with the preset value of specific drillability. The system ensures the possibility of automatic or remote control of the drilling process on the basis of information generated on-line in the course of the drilling operation. The system is capable of operation without re-adjustment, in any field, using a drilling tool of pre-selected type. The system operation ensures the minimum energy consumption and cost of drilling at a high efficiency and drilling tool reliability.
REFERENCES:
patent: 3541852 (1970-11-01), Brown et al.
patent: 3752966 (1973-08-01), Foy, Jr. et al.
patent: 3785202 (1974-01-01), Kelseaux et al.
patent: 4165789 (1979-08-01), Rogers
Butkin Vladimir D.
Kulachek Mikhail I.
Zhukovsky Alexei A.
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