Search Results
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3 items
Handwritten letter by Marsilo Landriani to a naturalist
- 1787-May-07
Manuscript letter from Marsilio Landriani (1751-1815), chemist, physicist and meteorologist, to a naturalist. Written on May 7, 1787, the letter deals with several topics including the work of Lavoisier, Guyton de…
- Author Landriani, Marsilio, 1751-1815
- Subject Lavoisier, Antoine Laurent, 1743-1794, Chemistry, Guyton de Morveau, Louis-Bernard, 1737-1816, Naturalists, Kirwan, Richard, 1733-1812, Chemists, Meteorology, Fourcroy, Antoine-François de, comte, 1755-1809, Laplace, Pierre Simon, marquis de, 1749-1827, Scientists, Chemistry--Nomenclature
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128 items
Robert Bruce Merrifield notebook
- 1959-May-26 – 1960-Jan-25
Notebook #321 kept by Robert Bruce Merrifield from May 26, 1959 through January 25, 1960 in which he sets out his general conception of solid phase peptide synthesis. This work earned him a Nobel Prize in Chemistry in…
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390 items
Advertisements from the Dow Chemical Historical Collection
This archival collection consists of approximately 900 domestic print advertisements, leaflets, posters, and other ephemera for various brands of The Dow Chemical Company, primarily taken from magazines published…
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9 items
Paul C. Lauterbur notebook
- Genesis of MRI notebook
- 1971-Sep-02 – 1971-Sep-07
Notebook used by Paul C. Lauterbur to document the genesis of Magnetic Resonance Imaging (MRI). The notebook is titled, "Spatially Resolved Nuclear Magnetic Resonance Experiments - General Idea and Some Potential…
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48 items
Notes on lecture by Matthieu Orfila in Paris
- 1834
Lecture notes recorded by Jean-Baptiste-Alexandre Stroehlin in Paris when he attended lectures given by Matthieu Orfila. The lectures are organized around specific chemicals, thus there are headings such as "Carbonates"…
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Continuous polymerizer salt holding tank
- 1947-Apr-09
General view of a continuous polymerizer salt holding tank used during the early stages of synthetic fiber production and research at DuPont.
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Monomer still used in production of nylon
- 1947-Apr
General view of a monomer still used during the early stages of nylon production and research at DuPont. The photograph is labeled "Figure 2," indicating that it appeared in a report or publication.
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Two-gear melt-pool booster pump
- 1947-Apr
General view of the component parts of a two-gear melt-pool booster pump used during the early stages of synthetic fiber production and research at DuPont. Typically, such booster pumps were used to feed a bubble-free…
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Thermoswitch and thermoregulators used in production of synthetic fibers
- 1946-Aug-09
- 1947-Mar
Assorted apparatus, including a Fenwal Thermoswitch and Thermoregulator, H-B Mercury-in-glass Thermostat, and Scaico Thermostat, used during the early stages of synthetic fiber production and research at DuPont.…
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Continuous denier meter used in production of synthetic fibers
- 1947-Mar
General view of a continuous denier meter used to measure the denier, or thickness, of filaments during the early stages of synthetic fiber production and research at DuPont. The spool of yarn to be measured is visible…
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2 items
Measuring cell used in production of synthetic fibers
- 1947-Mar
Two views of a measuring cell used during the early stages of synthetic fiber production and research at DuPont. Typically, such cells were placed in an electrolyte bath as part of a metered device used to measure the…
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Yarn windup for production of synthetic fibers
- 1947-Mar
General view of a yarn windup used during the early stages of synthetic fiber production and research at DuPont. The components of the windup are identified as follows: windup rolls (left); gear box (center); and…
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2 items
Six-position staple spinning unit
- 1947-Mar
Two views of a six-position staple spinning unit used during the early stages of synthetic fiber production and research at DuPont. Various components of the spinning unit are visible in the photograph, including a pump…
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Pump block for six-position spinner
- 1947-Mar
Close-up view of the pump block of a six-position spinner used during the early stages of synthetic fiber production and research at DuPont. During the production of nylon, melt from the spinning machine typically…
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Trumpet and chamber for roll crimper
- 1947-Mar
Detail view of a trumpet and chamber for a 2.5-inch-wide roll crimper used to crimp textile fibers during the early stages of synthetic fiber production and research at DuPont. Typically, fibers entered a crimper…
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High-speed creel guide
- 1947-Mar
Detail view of a high-speed creel guide used during the early stages of synthetic fiber production and research at DuPont. "Creel" refers to a rack holding bobbins or spools for spinning. The photograph is labeled…
- Subject Nylon, E.I. du Pont de Nemours & Company, Machinery
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Wide-roll crimper chamber
- 1947-Mar
Detail view of a wide-roll crimper chamber used to crimp textile fibers during the early stages of synthetic fiber production and research at DuPont. Typically, fibers entered a crimper machine via drive pulleys and…
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Detail view of crimper used for production of nylon
- 1947-Mar
Detail view of a type of crimper used to crimp textile fibers during the early stages of synthetic fiber production and research at DuPont. Typically, fibers entered the machine via drive pulleys and were fed into a…
- Subject Nylon, E.I. du Pont de Nemours & Company, Machinery
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3 items
Measuring tension on drawing machine used for production of nylon
- 1947-Mar
Three close-up views of tension measurements taken on various components of a drawing machine, including the draw, creel, and crimper, used during the early stages of nylon production and research at DuPont. The…
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Inspecting feed to spinning machine at nylon pilot plant
- 1947-Feb
General view of technicians inspecting the feed to the two-position spinning machine used at the DuPont plant in Seaford, Delaware during the early stages of nylon production and research. The two cylindrical hoppers…
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Inspection of autoclave at DuPont facility
- 1947-Feb
General view of technicians inspecting an autoclave located in the Polymer Wing at a DuPont facility during the early stages of synthetic fiber production and research. The individuals visible in the photograph are…
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Inspection of staple drawing machine at DuPont facility
- 1947-Feb
General view of technicians inspecting the creel (a rack holding bobbins or spools for spinning) on a staple drawing machine used during the early stages of synthetic fiber production and research at DuPont. During the…
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Screw and booster pumps used for production of synthetic fibers
- 1946-Nov-11
- 1947-Jan-06
Detail views of screw and booster pumps used during the early stages of synthetic fiber production and research at DuPont. The photographs are captioned "Figure 4--Experimental Melt-Pool Screw Pump" and "Figure…
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Distillation units at DuPont facility
- 1947-Feb
General view of the distillation units located in the first floor Organic Laboratory at a DuPont facility during the early stages of synthetic fiber production and research. The individuals visible in the photograph are…
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Continuous polymerizer at DuPont facility
- 1947-Jan-07
General view of component parts, including a holding tank, flash tube, spinner, and finisher, of a continuous polymerizer used during the early stages of synthetic fiber production and research at DuPont.
