Search Results
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51 items
Instruction Manual, Zeromatic pH Meter
- 514-B
- 1957-Jul
Intentionally blank pages (28, 40, and 42) have been omitted from the digital work.
Arnold Beckman invented his first pH meter in 1934 at the request of a chemist from the California citrus industry, who needed an…
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Dow Chemical Company sign at South Power Station
- 1950-Sep-12
Close-up view of a newly-installed reproduction of the Dow Chemical Company's diamond emblem on the roof of the South Power Station at the Company's headquarters in Midland, Michigan. An unidentified Power Division…
- Creator Of Work Dow Chemical Company
- Subject Branding (Marketing), Emblems, Industries, Electric signs, Dow Chemical Company, Employees
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Production of cellulose gum at Hercules Hopewell plant
- 1957-Mar-12 – 1957-Mar-15
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
- Subject Employees, Chemical industry, Hercules Incorporated, Corporations, Cellulose, Machinery
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Employee loading packaged chemical cotton at Hercules Hopewell plant
- 1957-Mar-12 – 1957-Mar-15
General view of an unidentified employee loading packages of so-called "chemical cotton" into a boxcar at the Hercules Powder Company plant in Hopewell, Virginia. Chemical cotton, a type of purified cellulose obtained…
- Creator Of Work Hercules Incorporated
- Subject Employees, Chemical industry, Cotton, Hercules Incorporated, Corporations, African Americans, Cellulose, Machinery
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Control panel at Hercules Hopewell plant
- 1957-Mar-12 – 1957-Mar-15
General view of a control panel used to manage the continuous bleaching operation, part of the production of so-called "chemical cotton," at the Hercules Powder Company plant in Hopewell, Virginia. Chemical cotton, a…
- Creator Of Work Hercules Incorporated
- Subject Employees, Chemical industry, Hercules Incorporated, Corporations, Cellulose, Machinery
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2 items
Employee operating autoclave control panel at Hercules Hopewell plant
- 1957-Mar-12 – 1957-Mar-15
Two views of an unidentified employee operating the control panel on an autoclave used to process ethyl cellulose manufactured at the Hercules Powder Company plant in Hopewell, Virginia. Ethyl cellulose manufactured by…
- Creator Of Work Hercules Incorporated
- Subject Employees, Chemical industry, Ethylcellulose, Hercules Incorporated, Corporations, Cellulose, Machinery, Autoclaves
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Employee operating loose pulp dryer at Hercules Hopewell plant
- 1957-Mar-12 – 1957-Mar-15
General view of an unidentified employee operating a loose pulp dryer at the Hercules Powder Company plant in Hopewell, Virginia. The loose pulp dryer was likely used to process cellulosic fibrous materials, such as…
- Creator Of Work Hercules Incorporated
- Subject Employees, Chemical industry, Hercules Incorporated, Corporations, African Americans, Cellulose, Machinery
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Employee washing chemical cotton at Hercules Hopewell plant
- 1957-Mar-12 – 1957-Mar-15
General view of an unidentified employee washing so-called "chemical cotton" as part of the continuous bleaching process at the Hercules Powder Company plant in Hopewell, Virginia. Chemical cotton, a type of purified…
- Creator Of Work Hercules Incorporated
- Subject Employees, Chemical industry, Cotton, Hercules Incorporated, Corporations, Cellulose, Machinery
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Employees at work in Sheeting Department at Hercules Hopewell plant
- 1957-Mar-12 – 1957-Mar-15
General view of two unidentified employees using a machine to cut stock of so-called "chemical cotton" into sheets at the Hercules Powder Company plant in Hopewell, Virginia. Chemical cotton, a type of purified…
- Creator Of Work Hercules Incorporated
- Subject Employees, Chemical industry, Cotton, Hercules Incorporated, Corporations, Cellulose, Machinery
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Continuous digester at Hercules Hopewell plant
- 1957-Mar-12 – 1957-Mar-15
General view of the charging end of a continuous digester used at the Hercules Powder Company plant in Hopewell, Virginia. The continuous digester system was likely used to process cellulosic fibrous materials, such as…
- Creator Of Work Hercules Incorporated
- Subject Employees, Chemical industry, Hercules Incorporated, Corporations, Cellulose, Machinery
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Continuous bleaching equipment at Hercules Hopewell plant
- 1957-Mar-12 – 1957-Mar-15
General view of continuous bleaching equipment used in the production of so-called "chemical cotton" at the Hercules Powder Company plant in Hopewell, Virginia. Chemical cotton, a type of purified cellulose obtained…
- Creator Of Work Hercules Incorporated
- Subject Employees, Chemical industry, Hercules Incorporated, Corporations, Cellulose, Machinery
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2 items
Employee operating paper machine at Hercules Hopewell plant
- 1957-Mar-12 – 1957-Mar-15
Two views of an unidentified employee operating a paper machine in the Sheeting Department at the Hercules Powder Company plant in Hopewell, Virginia. The paper machine was likely used to process cellulosic fibrous…
- Creator Of Work Hercules Incorporated
- Subject Employees, Chemical industry, Hercules Incorporated, Corporations, Cellulose, Machinery
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Continuous bleaching equipment at Hercules Hopewell plant
- 1957-Mar-12 – 1957-Mar-15
General view of continuous bleaching equipment used in the production of so-called "chemical cotton" at the Hercules Powder Company plant in Hopewell, Virginia. Chemical cotton, a type of purified cellulose obtained…
- Creator Of Work Hercules Incorporated
- Subject Employees, Chemical industry, Hercules Incorporated, Corporations, Cellulose, Machinery
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Employee bagging cellulose gum at Hercules Hopewell plant
- 1957-Mar-12 – 1957-Mar-15
General view of an unidentified employee bagging 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…
- Creator Of Work Hercules Incorporated
- Subject Employees, Chemical industry, Hercules Incorporated, Corporations, Cellulose, Machinery
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Employees bailing chemical cotton at Hercules Hopewell plant
- 1957-Mar-12 – 1957-Mar-15
General view of several unidentified employees bailing and wrapping sheets of so-called "chemical cotton" for shipment at the Hercules Powder Company plant in Hopewell, Virginia. Chemical cotton, a type of purified…
- Creator Of Work Hercules Incorporated
- Subject Employees, Chemical industry, Cotton, Hercules Incorporated, Corporations, African Americans, Cellulose, Machinery
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Donald Stevens operating sheet-making equipment 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, Stevens, Donald
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John Coleman operating roll rewinder at Hercules Hopewell plant
- 1951
General view of back tender John Coleman operating a roll rewinder in the Cellulose Department at the Hercules Powder Company plant in Hopewell, Virginia. Per notations accompanying the photograph, the roll rewinder was…
- Creator Of Work Hercules Incorporated
- Photographer Rittase, William M., 1894-1968
- Subject Employees, Chemical industry, Cotton, Hercules Incorporated, Corporations, Cellulose, Machinery, Coleman, John
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Percy L. Bell analyzing viscose solutions at Hercules Hopewell plant
- 1951
Close-up view of laboratory operator Percy L. Bell checking the composition of viscose solutions produced in the Cellulose Department at the Hercules Powder Company plant located in Hopewell, Virginia. The viscose…
- Creator Of Work Hercules Incorporated
- Photographer Rittase, William M., 1894-1968
- Subject Employees, Chemical industry, Scientific apparatus and instruments, Research, Industrial, Hercules Incorporated, Corporations, Cellulose, Laboratories, Bell, Percy L.
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Control test at Hercules Hopewell plant
- 1951
General view of laboratory operator Donald R. Stevens checking the filtration characteristics of viscose solutions produced in the Cellulose Department at the Hercules Powder Company plant located in Hopewell, Virginia.…
- Creator Of Work Hercules Incorporated
- Photographer Rittase, William M., 1894-1968
- Subject Employees, Chemical industry, Laboratories, Research, Industrial, Hercules Incorporated, Corporations, Cellulose, Viscosity, Scientific apparatus and instruments
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Continuous digester system for Hercules Hopewell plant
- 1953-Apr
Artist's rendering of the continuous digester system used at the Hercules Powder Company plant in Hopewell, Virginia. The continuous digester system was likely used to process cellulosic fibrous materials, such as…
- Creator Of Work Hercules Incorporated
- Subject Chemical industry, Hercules Incorporated, Corporations, Cellulose
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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
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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
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Leroy Brown and John Williams operating automatic banding machine at Hercules Hopewell plant
- 1951
General view of Leroy Brown and John Williams operating an automatic banding machine in the Cellulose Department at the Hercules Powder Company plant in Hopewell, Virginia. Per notations accompanying the photograph, the…
- 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, Brown, Leroy, Williams, John
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Timothy R. Curley operating lift truck at Hercules Hopewell plant
- 1951
General view of Timothy R. Curley operating a lift truck to move bales of cotton linters at the Hercules Powder Company plant in Hopewell, Virginia. At the Hopewell plant, raw cotton linters (short fiber residues left…
- Creator Of Work Hercules Incorporated
- Photographer Rittase, William M., 1894-1968
- Subject Employees, Chemical industry, Cotton, Hercules Incorporated, Corporations, African Americans, Cellulose, Forklift trucks, African American men, Warehouses, Curley, Timothy R.
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2 items
Paul F. Brown operating bale breaking machine 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, Brown, Paul F.
