METHOD OF MANUFACTURING CASE FOR TELEPHONE DEVICE USED IN TELECOMMUNICATION INDUSTRY AND PORTABLE TYPE HANDSET OR OTHER CASING OF SAME KIND AS SAID CASE BY WOOD

摘要

Parts for a wooden casing, in particular in the form of a telephone apparatus case, are manufactured as follows. A piece of timber is dried inside an oven to a moisture content of about 4-5% with sufficient moisture content being left to avoid cell collapse in the timber. At the end of the drying period the temperature is raised causing the resin in the timber to flow out and seal the pitch fibers of the wood preventing the wood from reabsorbing moisture. A blank is taken from the dried timber and worked into the final shape of a casing. Any weak points in the casing are reinforced with a reinforcing material in the form of wood or some other material. The pores of the wood are then sealed with varnish.