The OMM-Type yarn covering machine is some 10m long, 2m high and about 1m deep. It covers elastic yarn with fine thread and winds it onto a total of 160 spindles. The spindles are arranged in two rows on either side of the machine. A motor-driven belt that is tensioned by 160 jockeys drives each row. These machines produce daily noise exposures of 100dB and clearly are a major problem.
The staff noise exposures were reduced by 15dB. A side benefit of the replacement spindles was that they required less maintenance.
The total cost at today's rates was circa £10,000 for the full treatment ignoring the cost of replacement spindles, which was an on going maintenance issue.
Wykes of Leicester Ltd & PDA Ltd.