Instruments & Innovation

Search within featured Instruments & Innovation items
You Searched For
Start Over You searched for: Creator Rittase, William M., 1894-1968 Remove constraint Creator: Rittase, William M., 1894-1968 Department Archives Remove constraint Department: Archives Rights No Known Copyright Remove constraint Rights: No Known Copyright Subject Chemical industry Remove constraint Subject: Chemical industry-
Sheet-making equipment in use at Hercules Hopewell plant
- 1951
Close-up view of laboratory operator Donald Stevens using a press to remove water from a sheet of so-called "chemical cotton," i.e. purified cellulose obtained from raw cotton linters, manufactured in the Cellulose…
- Creator Of Work Hercules Incorporated
- Photographer Rittase, William M., 1894-1968
- Subject Employees, Chemical industry, Cotton, Hercules Incorporated, Corporations, Cellulose, Machinery
-
Roll rewinder in use at Hercules Hopewell plant
- 1951
General view of a roll rewinder in use in the Cellulose Department at the Hercules Powder Company plant in Hopewell, Virginia. Per notations accompanying the photograph, the roll rewinder was used to produce smaller…
- Creator Of Work Hercules Incorporated
- Photographer Rittase, William M., 1894-1968
- Subject Employees, Chemical industry, Cotton, Hercules Incorporated, Corporations, Cellulose, Machinery
-
Production of cellulose gum at Hercules Hopewell plant
- 1951
General view of the production of carboxymethyl cellulose (CMC) at the Hercules Powder Company plant in Hopewell, Virginia. Also known as cellulose gum or tylose powder, CMC is a cellulose derivative commonly used as a…
- Creator Of Work Hercules Incorporated
- Photographer Rittase, William M., 1894-1968
- Subject Employees, Chemical industry, Hercules Incorporated, Corporations, Cellulose, Machinery
-
Fourdrinier machine in use at Hercules Hopewell plant
- 1951
Close-up view of a Fourdrinier machine in use at the Hercules Powder Company plant in Hopewell, Virginia. Per notations accompanying the photograph, this Fourdrinier machine was used to dewater sheets of so-called…
- Creator Of Work Hercules Incorporated
- Photographer Rittase, William M., 1894-1968
- Subject Chemical industry, Cotton, Hercules Incorporated, Corporations, Cellulose, Machinery
-
Automatic banding machine in use at Hercules Hopewell plant
- 1951
General view of an automatic banding machine in use in the Cellulose Department at the Hercules Powder Company plant in Hopewell, Virginia. The employees visible in the photograph are identified as Leroy Brown and John…
- Creator Of Work Hercules Incorporated
- Photographer Rittase, William M., 1894-1968
- Subject Employees, Chemical industry, Cotton, Hercules Incorporated, Corporations, African Americans, Cellulose, African American men, Machinery
-
Bale breaking machine in use at Hercules Hopewell plant
- 1951
Two views of employee Paul F. Brown feeding raw cotton linters (short fiber residues left on the cottonseed after the longer staple, aka the "lint" fibers, are removed by ginning) into a bale breaking machine in the…
- Creator Of Work Hercules Incorporated
- Photographer Rittase, William M., 1894-1968
- Subject Employees, Chemical industry, Cotton, Polymers, Hercules Incorporated, Corporations, African Americans, Cellulose, African American men, Machinery
-
Control panel at Hercules Hopewell plant
- 1940s
General view of an unidentified employee examining a control panel used in the production of ethyl cellulose at the Hercules Powder Company plant in Hopewell, Virginia. Ethyl cellulose manufactured by the Hercules…
- Creator Of Work Hercules Incorporated
- Photographer Rittase, William M., 1894-1968
- Subject Employees, Chemical industry, Ethylcellulose, Scientific apparatus and instruments, Hercules Incorporated, Corporations, Cellulose, Machinery
-
Washing tub in use at Hercules Hopewell plant
- 1940-Jun-17
General view of a washing tub in use at the Hercules Powder Company's Ethyl Cellulose plant in Hopewell, Virginia. Per notations accompanying the photograph, constant agitation and continual charges of water were used…
- Creator Of Work Hercules Incorporated
- Photographer Rittase, William M., 1894-1968
- Subject Employees, Chemical industry, Ethylcellulose, Scientific apparatus and instruments, Hercules Incorporated, Corporations, Cellulose, Machinery
-
Caustic soda weigh-tanks at Hercules Hopewell plant
- 1940s
General view of weigh-tanks for caustic soda and ethyl cellulose at the Hercules Powder Company's Ethyl Cellulose plant in Hopewell, Virginia. Per notations accompanying the photograph, caustic soda and ethyl cellulose…
- Creator Of Work Hercules Incorporated
- Photographer Rittase, William M., 1894-1968
- Subject Employees, Chemical industry, Scales (Weighing instruments), Ethylcellulose, Scientific apparatus and instruments, Hercules Incorporated, Corporations, Cellulose, Machinery
-
Sheeted cotton linters at Hercules Hopewell plant
- 1940-Jun-17
Close-up view of several rolls of sheeted cotton linters mounted on spindles at the Hercules Powder Company's Ethyl Cellulose plant in Hopewell, Virginia. Per notations accompanying the photograph, the cotton was…
- Creator Of Work Hercules Incorporated
- Photographer Rittase, William M., 1894-1968
- Subject Chemical industry, Ethylcellulose, Cotton, Spindles (Machine-tools), Hercules Incorporated, Corporations, Cellulose, Machinery
-
Extruder in use at Hercules Parlin plant
- 1949-Jan
Close-up view of an extruder in use in the Plastics Laboratory at the Hercules Powder Company plant in Parlin, New Jersey. Extruders were commonly used to process and shape a variety of raw materials produced at the…
- Creator Of Work Hercules Incorporated
- Photographer Rittase, William M., 1894-1968
- Subject Chemical industry, Extrusion process, Hercules Incorporated, Corporations, Cellulose, Machinery
-
Injection molding at Hercules Parlin plant
- 1949-Jan
General view of operator J.P. Deran removing injection molded cellulose materials from a 4-ounce Reed Prentice molding apparatus at the Hercules Powder Company plant in Parlin, New Jersey. Per notations accompanying the…
- Creator Of Work Hercules Incorporated
- Photographer Rittase, William M., 1894-1968
- Subject Plastics--Molding, Employees, Chemical industry, Research, Industrial, Hercules Incorporated, Corporations, Injection molding of plastics, Machinery, Cellulose
-
Take-off jig at Hercules Parlin plant
- 1949-Jan
Close-up view of the take-off jig used to control extruded shapes on a National Rubber 2-inch extruder in the Plastics Laboratory at the Hercules Powder Company plant in Parlin, New Jersey. The employee visible in the…
- Creator Of Work Hercules Incorporated
- Photographer Rittase, William M., 1894-1968
- Subject Chemical industry, Extrusion process, Hercules Incorporated, Corporations, Cellulose, Machinery, Ethylcellulose
-
Extruder in use at Hercules Parlin plant
- 1949-Jan
Close-up view of an extruder in use in the Plastics Laboratory at the Hercules Powder Company plant in Parlin, New Jersey. An unidentified employee is seen pouring raw material into the hopper; the material is…
- Creator Of Work Hercules Incorporated
- Photographer Rittase, William M., 1894-1968
- Subject Employees, Chemical industry, Extrusion process, Hercules Incorporated, Corporations, Cellulose, Machinery
-
Two-roll mill in use at Hercules Parlin plant
- 1949-Jan
Close-up view of operator L.F. Strugala using a two-roll mill in the Plastics Laboratory at the Hercules Powder Company plant in Parlin, New Jersey. Per notations accompanying the photograph, the two-roll mill was used…
- Creator Of Work Hercules Incorporated
- Photographer Rittase, William M., 1894-1968
- Subject Employees, Chemical industry, Research, Industrial, Hercules Incorporated, Corporations, Cellulose, Machinery
-
Extruder in use at Hercules Parlin plant
- 1949-Jan
Close-up view of the take-off jig used to control extruded shapes on a National Rubber 2-inch extruder in the Plastics Laboratory at the Hercules Powder Company plant in Parlin, New Jersey. The employee visible in the…
- Creator Of Work Hercules Incorporated
- Photographer Rittase, William M., 1894-1968
- Subject Employees, Chemical industry, Extrusion process, Hercules Incorporated, Corporations, Cellulose, Machinery, Ethylcellulose
-
Milling cutter in use at Hercules Parlin plant
- 1949-Jan
Close-up view of J.P. Drew operating a milling cutter used in the Plastics Laboratory at the Hercules Powder Company plant in Parlin, New Jersey. Per notations accompanying the photograph, the cutter was used to cut…
- Creator Of Work Hercules Incorporated
- Photographer Rittase, William M., 1894-1968
- Subject Plastics, Employees, Chemical industry, Research, Industrial, Hercules Incorporated, Corporations, Cellulose, Machinery, Plastics--Testing
-
Two-roll mill at Hercules Parlin plant
- 1949-Jan
Close-up view of operator L.F. Strugala using a two-roll mill in the Plastics Laboratory at the Hercules Powder Company plant in Parlin, New Jersey. Per notations accompanying the photograph, the two-roll mill was used…
- Creator Of Work Hercules Incorporated
- Photographer Rittase, William M., 1894-1968
- Subject Employees, Chemical industry, Research, Industrial, Hercules Incorporated, Corporations, Cellulose, Machinery