Just found an article from August 1909 which says that C.E. Richardsons were fined under the Factory Acts for employing young people under the age of 16 without obtaining medical certificates of fitness. It said they carried on "the manufacture of toys, including kites and flying machines."

C E Richardson of Sheffield put in his kites Patent Application No. 3455 in February 1909. The patent in full is a public record.
Dave

Thank you all very much for all the useful information you have given me! I greatly appreciate it! Will be adding it all to my notes. I have been working on my family tree for years but just now getting deeper into my Truelove branch. This website for Sheffield has a lot of very helpful information and I thank you all again!