Bakelite moulding and application in the telephone industry
14 January 1936
The advantageous properties of synthetic resin mouldings are briefly enumerated with particular reference to their application in telephone apparatus. The requirements of the telephone industry have created a number of new moulding problems which are solved by means of the injection or extrusion process now in use by the Bell Telephone Manufacturing Company on a commercial basis in producing interesting parts. A description of this process, as well as the conventional moulding process, is given. Illustrations of various moulded parts, as well as the presses and moulds employed in their production, are included.