Screws are satisfactory substitutes for rivets in fastening together the parts, and wire nails, of a length to allow for about ¹⁄₄-in. clinch, give a fair job. Indians overcome the lack of hardware by the use of rawhide, laced through diagonally staggered holes bored through the crosspieces and bottom boards. Rawhide, which they sometimes stretch over the bow as a protection, affords an opportunity for elaborate ornamentation.
Wooden Lock with Combination Key
This Lock is Made Entirely of Wood and cannot be Picked Easily
The lock shown in the [sketch] and [detailed drawings] is made entirely of wood, and it is nearly impossible to pick or open it without the use of the key. The casing of the lock is 5 by 5 in. and 1 in. thick, of hard wood, oak being suitable for this as well as for the other parts. Three tumblers, a bolt, and a keeper are required. The key is shown inserted, indicating how the tumblers are raised by it. The bolt is slotted and a screw placed through it to prevent it from being moved too far. The lock and keeper are bolted into place on a door with carriage bolts, the heads being placed on the outer side.
The Details of Construction must be Observed Carefully and the Parts Made Accurately to Insure Satisfactory Operation
The detailed drawing shows the parts, together with the dimensions of each, which must be followed closely.
The lock casing is grooved with two grooves, extending the length of the grain and connected by open mortises, all ¹⁄₂ in. in depth. The spacing of the mortises and the grooves is [shown] in the views of the casing. Three tumblers, ¹⁄₂ in. square and 2¹⁄₂ in. long, are required. The bolt is ¹⁄₂ by 1 by 8 in., and the key ¹⁄₄ by ³⁄₄ by 5¹⁄₂ in., and notched as shown. All the parts of the lock must be fitted carefully, sandpapered smooth, and oiled to give a finish that will aid in the operation, as well as protect the wood. Aside from its practical use, this lock is interesting as a piece of mechanical construction.—B. Francis Dashiell, Baltimore, Md.