He is also accredited as the inventor of a self-discharging motorized transit mixer that was the predecessor of the concrete mixer truck.
The 346 was intended to be a concrete mixer, dump truck, or snowplow with 44 versions planned but never built.
A typical concrete mixer uses a revolving drum to mix the components.
A plasticizer or a superplasticizer is then added to the activated mixture, which can later be mixed with aggregates in a conventional concrete mixer.
I recall describing the experience afterward as what it must be like to take a trip in a concrete mixer.
However, they set slowly enough that they can be mixed at a batch plant and delivered in a concrete mixer.
To-day we have a mechanical concrete mixer.
I have received a preliminary report from which it appears that this accident was due to a concrete mixer, which was being moved, striking an electric cable and damaging it.