Fig. 51.
Using the Wooden Roofing Folder.—Folds of all kinds may be very easily and quickly made by using the wooden roofing folder, [Plate XII]. The work turned out by this simple machine is very straight and true, particularly long folds or angles of tin. The gauge may be set at any desired width up to ⁷⁄₁₆ of an inch and any number of folds of the desired width can be quickly and accurately produced by inserting the tin between the holding bars and closing up the folder.
Fig. 52.
The holding bars are shown at A A, [Fig. 52]. The adjustable gauge at B, C C are the wooden supports which are hinged together. D is the iron handle, E the adjusting screw, F is the piece of tin to be folded.
PLATE X
Dumping truck with body hoisted by winch under seat, made by Miss M. C. Newman