This section is from the book "The Boy Mechanic Vol. 2 1000 Things for Boys to Do", by Popular Mechanics Co.. Also available from Amazon: The Boy Mechanic, Vol2: 1000 Things for Boys to Do.
A very ingenious way to have a drawer close automatically is to attach a weight so that the rope or cord will pull on the rear end of the drawer. The sketch clearly shows the device which is an attachment similar to that used for closing gates. This can be the Rope and Weight Attached to the Back End of the Drawer Pulls It Closed applied to drawers that are frequently drawn out and in places where a person is liable to have the hands full.