I've got a couple of these very large metal funnels, made back in the day when oil came in cardboard or metal cans and you would pierce the top by pushing the can against the sharpened metal fixture on the funnel, which also held the can in place while it drained. This seems to have been a big seller for the company, since if you google their name, these things come up most frequently.
In the 1970's, the firm became Carter Temro Limited. Two years later, it was acquired by the Budd Automotive Company of Canada, located in Kitchener, a subsidiary of the Budd Company of Troy, Michigan. Under this arrangement, the Carter name was lost when it became the Temro Automotive Division of Budd. In 1976, Budd bought the the Phillips Company of Minneapolis, so the old Carter firm then became Phillips & Temro Industries. In 2002, when Budd itself was acquired by ThyssenKrupp AG, Budd sold the Temro & Phillips to TMB Industries, a private equity firm out of Chicago. The company changed hands several times again before being acquired by the Boston-based Audax Group in 2012. One of their first moves was to shut down the Canadian operation, consolidating all operations in Minnesota. Although the Winnipeg plant was making money, the new owners decided that they could do better by moving all production to a non-union American plant, putting about 200 Canadian workers, primarily women in their 50's, out of work. Nothing personal, just business.
In 2015, the Harbour Group of St. Louis, Missouri acquired Phillips & Temro.