A historic Sheffield foundry has closed with the loss of 45 jobs - but the site is set to be reborn after being acquired by bolt maker Cooper & Turner. Darwins Castings, which dates back to 1774, sold its site on Sheffield Road, Rotherham, with the majority of the workforce turning down the chance to work at a sister site in Scunthorpe. Bosses hoped “a sizeable number” would transfer, but just six took up…