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.
The tenons on the posts of a rocking chair being broken off so close to the rocker that it was impossible to make the ordinary repairs, four window-shade - roller brackets were used in the following manner: The metal was straightened so that it would lie flat and two brackets were used on the end of each post. This made a neat and strong repair. - Contributed by Chas. Schmidt, Baltimore, Md.