Eastman recruited William Walker, who had developed a pocket-size camera to be used with dry plates
. Walker proceeded to design a camera that could hold and advance a roll of film.
One of the most interesting reactions of the established producers was the introduction of products that aspired to improve the existing technology of dry plate photography.
Royal was eclipsed by IBM in the transition from manual to electric typewriters; the gas companies faded from the lighting business as the likes of Edison Electric and Westinghouse emerged; the leading dry plate makers faded away as Eastman's roll film gained market dominance.
Before long, dry plates took on all the hallmarks of a commodity business.
Two sets of experiments were carried out: measurement of brake-up for various inlet liquid temperature on the sandblasted vertical plate and measurements of wetting of the previously dry plate for various liquid temperature performed on the sandblasted and on a polished plate, both from stainless steel.
Hysteresis of flow rates has been confirmed experimentally , according to which the flow rates necessary to form a continuous liquid film on the previously dry plate are significantly higher that flow rates detected when continuous film brakes-up.
Minimum flow rate needed to form a continuous liquid film on a dry plate is in average 1 l/min in case of isothermal film.
During its latest trip to Java in October and November this year, the team was allowed by the Jakarta authorities to see a large volume of photographs and dry plates
, including about 500 pictures of the temple taken by Dutch photographers in around 1920.
And Bockarie's training has helped encourage the introduction of plate racks built to dry plates
in a clean manner, and the drainage was improved.
FAST, introduced several years ago, produces dry plates
that are ready for use immediately after processing, unlike conventional solvent or water wash plates that require long drying time.
The HFO can be remote controlled and contains an oil-actuated, self-adjusting clutch assembly using dry plates
. The unit's shaft and bearings are built to take high radial loads.
Its gun trigger acts as the shutter trigger and it takes 10 negatives on 2 x 2cm glass dry plates
held in metal sheaths.