. The Bell System technical journal . furnace moved frombase to base have been designed so that the arms of the six-ton crane grapplecan engage, handle and move all these items. The electrical connections to the furnace bell are made automatically. 122 BELL SYSTEM TECHNICAL JOURNAL This design consists of control and power plugs located on the exterior ofthe furnace and a floor stand with positions for electrical receptacles. Twopins align these units, one of which opens the receptacle covers as the fur-nace is lowered over the retort, Fig. 26. Features such as these make it possible to perfor
. The Bell System technical journal . furnace moved frombase to base have been designed so that the arms of the six-ton crane grapplecan engage, handle and move all these items. The electrical connections to the furnace bell are made automatically. 122 BELL SYSTEM TECHNICAL JOURNAL This design consists of control and power plugs located on the exterior ofthe furnace and a floor stand with positions for electrical receptacles. Twopins align these units, one of which opens the receptacle covers as the fur-nace is lowered over the retort, Fig. 26. Features such as these make it possible to perform all the furnace andcrane operations, to deliver wire to the inspection area, to load skids forshipment of wire with a minimum of effort on the part of the operator. Heattends these operations from a crane cab and as required, operates andadjusts the gas, water and drain valves from floor positions. In the event of power, gas or generating equipment failure, automaticindicating equipment summons the operator who then connects an 8%. Fig Gas generator and Nj tanks used as standby equipment H2-92% N2 mixture into the annealing gas lines. This has providedinexpensive stand-by equipment and constant production of bright annealedcopper wire. Fig. 27. Capacity and Results This mill is set up to produce wire on a three-shift basis. The equipmentof the type described, including space for rod and wire storage, occupiesan area of approximately 14,000 square feet. Training time was not ex-cessive for the average operator—efficiencies of 80% to 90% being attainedin a few months. Rotation of operators to the next shift every two weekshas worked out satisfactorily. NEW COPPER WIRE DRAWING PLANT 123 Periodic checks and maintenance of electrical circuits and apparatus,with adjustments of mechanical assemblies before major repairs arise, havekept repair costs low. Additional training and experience should furtherreduce maintenance and repair time. The use of diamond dies in diameters
Size: 1924px × 1299px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1920, booksubjecttechnology, bookyear1
