Tools for the Industry Available to Purchase

A Selection of Equipment of Use in the Production and Maintenance of Aircraft, Missiles, Space Vehicles and their Components. The Hockley Chemical Company Ltd., Hockley Hill, Birmingham, 18, claim to have been the first people in this country to introduce vibratory techniques for the deburring and polishing of metals. These machines are manufactured under licence from M/s. Carl Kurt Walther of Germany. They have now decided to extend the range of their machines and they are introducing the AVI/4 vibromatic machine which is 100 per cent English design, and has already proved to be very satisfactory. Basically, the machine is driven by a 400 volt, a.c. motor whichiscoupledtoanextcnsionshaft through a special flexible coupling. The extension shaft runs into a housing which is situated immediately under the vibrator work bowl. On each side of the housing are special non‐lubricating bearings, and weights are fitted inside the housing which can be altered in a few minutes to give variable amplitude depending on the type of work being processed. Discharge is carried out through the end of the bowl. At the opposite end of the machine is a built‐in electric control panel with automatic timed stop and start, the timer having a maximum period of 10 hours.