The power source was a wet-cell storage system charged by a dynamo powered by an upright steam engine, which also supplied power for machine tools and similar requirements in the shop/laboratory building.
The power source was a wet-cell storage system charged by a dynamo/laboratory building. This dynamo was powered by an upright steam engine. An upright steam engine also supplied power for machine tools in the shop. An upright steam engine also supplied power for similar requirements in the shop.