I have a rental property that has the old Miami Carey kitchen exhaust fan that basically is a round hole that go out the wall and is not part of the hood above the range top. Last tenant broke/lost the metal bracket that pushes down on the switch when the pull chain is pulled in. This bracket pushed down on the switch. It is about 1 inch wide and 3 inches long.

Does anyone know what I am talking about and where can I find one??? I wish that I had taken a picture of the fan, but the property is 20 miles away and maybe someone knows what I am talking about. The house was built in the early 60's.