. Their work also involved the careful recording
of all changes design and production.VIII-43
the impact the change the existing manufacturing
situation. Small changes indeed, but the
result was cheaper and better product the Department was not
laboring vain. Its staff worked primary
batteries and motion pictures, producing series of
improvements the projector and designing one for use the
home. The changes were authorized by
Engineering Notices and carried out the Chief Engineer and
his assistants. Formed June 1910, the committee assessed the
economic consequences proposed design change and decided
66
if was implemented. While the muckers the laboratory were working with
Edison the revolutionary new technologies sound and color
for movies, the Engineering Department was given the important
task day-to-day production engineering.
The Engineering Department soon enlarged its scope to
cover more than the phonograph. This involved very
small, and seemingly inconsequential changes, existing
product lines such lock nut for the mandrel the
phonograph ridge the primary battery jar cover which
a label could placed
