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