Alan Calvert

Alan Calvert (1875 – June 24, 1944) was an American businessman, magazine publisher, and author. He was an advocate of weightlifting as an exercise regimen and a competitive sport. He was a pioneer in the development of adjustable weightlifting equipment. He received a patent for the Milo Adjustable Barbell and founded the Milo Barbell Company in 1902 to produce commercially available barbells. He sold the company in 1920 and it was renamed York Barbell. He published Strength magazine, one of the first strength training magazines in the United States, and several books on weight training.