MORTAR and PESTLE (on
table)
Standard laboratory
equipment.
Use E-3436. Use E-1436 (glass retort), E-
1471 (support), and EDIS
6085 (stand).
BUNSEN BURNER (on
table) with STAND
Standard laboratory
equipment
Use EDIS 6131 (Bunsen
burner) and EDIS 6150
(stand).
Object and Location Evidence Recommendation
Table 7
LAB TABLE with RACK (in
place)
Figure 34. This table furnished the work place of
Jonas Aysworth, the chemist charge the experiments develop materials to
be used phonograph records.
Brass Filter SCREENS (on
table)
Standard laboratory
equipment. Use EDIS 351.
Aylsworth was also testing batches phenol for use making condensite. such important figure the chemical
experiments Edison’s laboratory that has been included the plan, even
though did most his work his private laboratory.
Glass CONTAINER, large (on
table)
Figure 34. A
mortar and pestle would used break the materials use and there would
also equipment heat, mix and filter record compounds.
Celluloid was inorganic chemical first developed artificial substitute for
ivory that had great potential recording surface. Acquire. Use EDIS 3209.
Many the substances this table were important ingredients Edison
cylinders and discs: wood flour and asbestos filler, stearate and other fatty
acids for waxes used cylinders, lamp black give the record surface the shiny
black color, and celluloid.
Glass RETORT (on table)
with SUPPORT and STAND
Figure 34.
1 liter RETORT (on table) Voucher 40, January 1910. 1910 was the best
material for records yet devised; was relatively easy produce, provided a
highly satisfactory recording medium and was difficult break.
190
. was used to
make Edison’s Blue Amberol records.
Reproduce. Shellac, organic product derived from
insect secretions, was another record compound under examination this
laboratory.Table Chemicals For Records
