Search Results
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Hot pond and sawmill conveyor at Cliffs Dow plant
- 1949
General view of three unidentified employees poling and transferring logs from a hot pond to the washer and sawmill conveyor at the Cliffs Dow wood distillation plant located in Marquette, Michigan. Invented around…
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Vertical retort and wood loading conveyor
- 1949
General view of the vertical retort and wood loading conveyor at the Cliffs Dow sawmill and wood distillation plant located in Marquette, Michigan. Providing a sense of scale, two unidentified employees are visible in…
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Sawmill at Cliffs Dow plant in Marquette, Michigan
- 1949
General view of an unidentified employee loading logs into a machine in the sawmill at the Cliffs Dow wood distillation plant located in Marquette, Michigan. Seeking a source of raw material for its new plastic,…
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Employee using band saw at Cliffs Dow plant
- 1949
General view of an unidentified employee feeding cants (logs with one or more squared sides) into a band saw in the sawmill at the Cliffs Dow wood distillation plant located in Marquette, Michigan. Seeking a source of…
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Employee filing band saw at Cliffs Dow plant in Marquette, Michigan
- 1949-Jun
General view of an unidentified employee filing a band saw in the sawmill at the Cliffs Dow wood distillation plant located in Marquette, Michigan. Seeking a source of raw material for its new plastic, ethylcellulose,…
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Employee filing circular saws at Cliffs Dow plant in Marquette, Michigan
- 1949
General view of an unidentified employee filing circular saws in the sawmill at the Cliffs Dow wood distillation plant located in Marquette, Michigan. Seeking a source of raw material for its new plastic,…
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Then, Less Pain from Back Aches...Now, Longer-Lasting Traffic Paints
- Another Development in Naval Stores Made Possible Through Hercules Chemical Research
- Part of 1948 Hercules Advertisements
- 1948
Advertisement for resins and chlorinated rubber manufactured and sold by the Hercules Powder Company for use in industrial paint. The advertisement details the varied uses of naval stores past and present, highlighting…
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2 items
Letter from Edwin W. Taylor to Arnold O. Beckman
- 1947-Aug-15
This letter includes a report on existing Beckman trademarks as of 1947, including information on the "acidimeter" and the point at which that instrument became known as the pH meter (1935).
- Addressee Beckman, Arnold O.
- Author Taylor, Edwin W.
- Subject Hydrogen-ion concentration--Measurement--Instruments, Patents, Trademarks, Beckman Instruments, Inc.
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Letter from Linus Pauling to Durand Churchill, Jr.
- 1945-Jun-08
In this letter Pauling reiterates requests for permission to discuss and publish on the oxygen meter, and argues for loosening security classification. He cites Arnold O. Beckman's permission to discuss the project…
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Letter from Durand Churchill, Jr. to Arnold O. Beckman
- 1945-May-24
In this letter, Churchill confirms that the National Defense Research Committee (NDRC) has granted Beckman permission to discuss the Pauling Oxygen Meter at an American Chemical Society meeting.
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Letter from Arnold O. Beckman to Commanding Officer, Naval Training Center
- 1946-Apr-26
In this letter, Beckman requests that a former employee, Robert A. Crane, receive an early discharge from the Navy in light of his father's poor health. Beckman notes that he has an open position for Crane.
- Author Beckman, Arnold O.
- Subject United States. Navy, Beckman Instruments, Inc.
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Letter from Arnold O. Beckman to Durand Churchill, Jr.
- 1945-May-10
In this letter, Beckman requested permission to discuss the Pauling Oxygen Meter and made the case that the National Defense Research Committee (NDRC) should lift the "Restricted" classification.
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Model G pH meter cable assembly diagram
- Dwg. No. 662-000740
- 1949-Feb-08
Arnold Beckman invented his first pH meter in 1934 at the request of a chemist from the California citrus industry, who needed an accurate way to measure the acidity of his product. The resulting instrument kicked off…
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3 items
Chase's Products New Insect Bomb
- After 1927 – before 1972
Chase's brand insecticide aerosol spray can with black and white text on black, white, and yellow label. Round red cap.
- Manufacturer Chase Products Co.
- Subject Pesticides, DDT (Insecticide), Insecticides
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2 items
Shell Tox Aerosol Insecticide
- After 1941 – before 1967
Shell brand insecticide aerosol spray can with red and white text on red, gold, and white label with shell and insect graphic.
- Manufacturer Shell Oil Company
- Subject Pesticides, DDT (Insecticide), Insecticides
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3 items
Gulf Trak Moth Proofer
- Circa 1947
Gulf Trak brand insecticide aerosol spray can with blue, white, and orange text on blue, white, and orange label. Round red cap.
- Manufacturer Gulf Oil Corporation
- Subject Pesticides, DDT (Insecticide), Insecticides
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4 items
Standard Aerosol Insect Killer
- After 1870 – before 1972
Standard brand pesticide spray can with red and blue text on red, white, and blue label. Standard logo. Round red cap.
- Manufacturer Standard Oil Company
- Subject Pesticides, DDT (Insecticide), Insecticides
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10 items
A New Spectrophotometer Employing a Glass Fery Prism
- 1949-May
This paper describes the use of an older style of glass prism in a new spectrophotometer made by Beckman Instruments. This new spectrophotometer would become the Model B, the glass prism making it a cheaper alternative…
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56 items
1949 Hercules Advertisements
- 1949
The extensive collection of Hercules advertising materials, covering the years 1913 through 1952, documents the company's growth as a major manufacturer of chemical products. A portion of the 1949 edition is digitized…
- Creator Of Work Hercules Incorporated
- Subject Toxaphene, Chemical industry, Hercules Incorporated, Pine oil, Corporations, Naval stores, Insecticides, Advertising, Industrial
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Creative Chemistry Helps the South Serve Industry
- Part of 1949 Hercules Advertisements
- 1949
Advertisement for various pine-based naval stores products manufactured and sold by the Hercules Powder Company, including Toxaphene insecticides, wood turpentine, and synthetic resins. This advertisement appeared in Na…
- Creator Of Work Hercules Incorporated
- Subject Chemical industry, Research, Industrial, Turpentine, Hercules Incorporated, Terpenes, Corporations, Naval stores, Gums and resins, Insecticides, Advertising, Industrial
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Texaští Pěstitelě Bavlny! Vyplatí se vám prášiti s Toxaphene
- Texan Cotton Growers! It pays to dust with Toxaphene!
- Part of 1949 Hercules Advertisements
- 1949
Advertisement for Toxaphene, a toxicant manufactured and sold by the Hercules Powder Company for use in pesticides and insecticides. The advertisement is written in Czech and appeared in the Bulgarian journal Svoboda,…
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More Toxaphene for 1950
- Part of 1949 Hercules Advertisements
- 1949
Advertisement for Toxaphene, a toxicant manufactured and sold by the Hercules Powder Company for use in pesticides and insecticides. The advertisement details Hercules' expanded production facilities in Brunswick,…
- Creator Of Work Hercules Incorporated
- Subject Toxaphene, Chemical industry, Research, Industrial, Hercules Incorporated, Corporations, Naval stores, Insecticides, Advertising, Industrial
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These Facts Now Can Help You Fight Insects in 1950
- Part of 1949 Hercules Advertisements
- 1949
Advertisement for Toxaphene, a toxicant manufactured and sold by the Hercules Powder Company for use in pesticides and insecticides. The advertisement includes information for obtaining booklets on the use of Toxaphene…
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Scarce as Hens' Teeth
- Advertisement for Hercules Toxaphene
- Part of 1949 Hercules Advertisements
- 1949
Advertisement for Toxaphene, a toxicant manufactured and sold by the Hercules Powder Company for use in pesticides and insecticides. This advertisement appeared in Agricultural Chemicals.
Formed in 1912 as part of an…
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Valley Cotton Growers: Worms...Weevils and Caterpillars
- Part of 1949 Hercules Advertisements
- 1949
Advertisement for Toxaphene, a toxicant manufactured and sold by the Hercules Powder Company for use in pesticides and insecticides.
Formed in 1912 as part of an anti-trust settlement with DuPont, the Hercules Powder…