Who invented the Baby Cage 1937?

In the 1930s, London nannies lacking space for their young ones resorted to the baby cage. It's exactly what it sounds like: a creepy wire contraption, patented in the U.S. in 1922, that lets you claim that space outside your city window for your infant. The "health cage", as it was initially called, was invented by Mrs. Robert C Lafferty to provide babies with fresh air and sunshine while living in crowded cities.