Work progress, visible the 1914 photos, includes seven large (3-1/2 feet in
diameter) cast-iron pans castors.
Sadly, have been unable determine the purpose these presses. Additional
tables, handwheels, pulleys, and other parts for the remaining presses are lined
up the bench between the sawhorses and the motor stand. Unfortunately, research for the machine shop furnishings plan did not
reveal the perfect candidate. Rough frame
castings have have their bases milled flat milling machine and shaftways
bored out and spot faced drill press, lathe, boring mill. The frame,
ram, and handwheel resemble those ordinary light-duty arbor presses. Both the presses the right side the
photo are fitted with circular tables and four clamps brackets.
That shaft turned, through pair bevel-gears, pulley grooved to
accommodate round leather belt. The outside
surface the handwheels are smoothed off and the shaft hole bored out a
lathe. The hollow rams
are bored out and turned lathe. The
circular table about the same size Edison diamond disc, but its purpose,
and that the clamps and rotating spindle, remains mystery. Their rack gear teeth could cut either
844 Photograph Album 10, catalog 5209, leaf 75,
274
. Eight frame castings are sitting the floor next a
milling machine figure 106. (One these
devices survived Building least through 1939, and appears photo 8070
of the inventory E-4536.Searching for this sort interpretatively comprehensive project laudable
quest. These appear having the edges and
mating surfaces their top flanges and lids surfaced the Niles boring mill.644
Parts for specialized presses can seen, various stages completion,
throughout the shop. The keyway that secures the shaft cut shaper.
Similar pans are shown 1911 photograph the plant Silver Lake, being
used manufacture nickel hydrate and iron oxide for storage batteries. Unfortunately, the E-card simply lists "Arbor
Press. Each the castiron
frames carries vertical cylindrical steel ram. Presumably, many
of these parts have just been polished the speed lathe the background. Figure 108 shows the assembly station near the
back the shop with three presses nearing completion. The ram hollow and has rotating shaft the inside.")
Despite all these ambiguities, may worth doing additional research these
curious little presses, not because they are significant examples Edison
manufacture, then because reproducing them would allow demonstration wide
variety machine operations comparatively simple object. The ram has teeth cut its back
edge, forming rack gear that engages pinion gear the horizontal shaft
driven handwheel
