At least four arc lights appear figure 100.
The 1914 photographs are the first show anything the north aisle, the
courtyard side (figures 106 and 107). The 64-inch
Putnam lathe disappeared sometime between 1910 and 1914 and number new
machines arrived: Landis cylindrical grinder, double-spindle drill press near
the Lakeside Avenue door, single-spindle drill press, two lathes, two shapers,
and another double-spindle drill press along the north edge the south aisle. The 1906 view shows some rearrangement the shop and the addition of
four more large-scale machines, along with the general clutter busy operation.
Photographs the machine shop indicate subtle change the use space.
The steam engine was removed 1910 and replaced two electric motors
mounted platform the east end the shop (figure 108).automated and the design and manufacture the machine tools was a
considerable achievement for the laboratory. Figure 102 was taken from the door next the stock room. This surprising because arc lights
were notorious for producing harsh light and noxious odors and were seldom used
indoors.
An inventory and floor plan, made New York Appraisal Company 1920,
provides additional details and specifications.1890 photograph shows open area with few very large machine
tools. These included nine views the first floor
machine shop.
Figure 101 view the southwest comer the shop taken from the courtyard
door. difficult trace changes that side of
the shop any more specifically than saying that there were milling machines
there around 1890 and three place 1914.453
453 See series articles American Machinist 1911. began the east side the shop, the toilet, and
134
.
Figures 103, 104, and 105 are the south aisle the shop, the Lakeside
Avenue side. Figures 101 through 109 show number changes since the 1904
Byron photo and include almost all the machines that are the shop today.
By 1914 the biggest lathe and the steam engine were gone and the shop was
crowded with medium-sized general purpose tools. These received
current from new powerhouse, Building 10, the Edison Phonograph Works.
Dickson’s ca. commissioned extensive set large format photographs
of the laboratory April 1914.
In early 1914 Hutchison put stairway from the heavy machine shop the
precision room upstairs.
Thomas Edison, Inc
