Box 1
Contains 31 Results:
Francis G. du Pont and Pierre S. du Pont, Specification for improvement in making and granulating smokeless powder for small arms, undated
Concerning their patent No. 503,583 issued in 1893.
Francis G. du Pont equipment drawings, undated
Related to his patents.
Explosives patents, 1890-1893
Includes: Carl Olaf Lundholm and Joseph Sayers, British Patent No. 6399, for improvements in manufacture of explosives, typescript copy; Joseph R. France, Specification forming part of Patent No. 420, 447, for cotton-fiber dust and preparing the same; Carl Olaf Lundholm and Joseph Sayers, British Patent No. 13,486, provisional specification, for improvements in making and applying explosives; Francis G. du Pont and Pierre S. du Pont, amendment to application for Patent No. 455,901, for improvements in explosives.
Applications and specifications, copies, undated
Related to Francis G. du Pont and Pierre S. du Pont's patents for improvements in explosives.
Francis G. du Pont notebooks, 1870-1882
Includes: University of Pennsylvania lectures on chemistry and experiments (while a student); tables of constants concerning soda and moisture; experiments on absorption of moisture by powder; experiments on surface action and absorbancy of powder; experiments on roll cake; notes on surface action of powder; rolling mill explosions with their causes in four volumes; reorganization of Hagley Yard; experiments on the efficiency of Lower Dry House at Hagley Yard; and rewritten notes on experiments at Hagley Yard to determine the efficiency of the Lower Dry House, the shape of the packing house funnels, and the application of experimental research to the manufacture of blasting powder.
Rolling mills machinery sketches, 1891-1892
Includes a rough sketch of equipment at Carney's Point, New Jersey.
Francis G. du Pont, Method of Fabrication of Brown Prismatic Powder as used by the Societe Anonyme Coopal & Cie, Wetteren, Belgium, typescript, 1889 December 10
Francis G. du Pont note on the superiority of DuPont smokeless powder, undated
Includes a note by Alexis I. du Pont concerning experiments by Pierre S. du Pont; an analysis of Schultze, E.C., American Wood, and S.R. powder written by Alexis I. du Pont; and a recipe for making blue paper by Francis G. du Pont (possibly incomplete).
Francis G. du Pont patent, apparatus for purifying water specification, 1899 February 28
Patent No. 620,234.
"Sketch for E. I. du Pont de Nemours & Co). showing form of cut to be made in rods of powder" drawing, 1899 October 10
Related to Gathmann Powder.
Alfred V. du Pont memorandum relative to a ball of the eprouvette, undated
Made with the view of ascertaining the effect produced by shot of identical windage and shape in a common mortar eprouette.
Gunpowder fabrication memoranda, 1844-1846
Alfred V. du Pont letter to unidentified correspondent, 1847 June 19
Regarding experiments with guncotton.
Alfred V. du Pont memorandum with tabulation, 1855
Related to new balls for eprouvette.
"Journal of Rifle Experiments" memorandum with tabulation, 1856
Written in unidentified hand.
"Remarks on the Effects of DuPont's & Hazard's Powder on 8 Inch Columbiards", 1857
Written in unidentified hand.
DuPont powder record of sum of the ranges, signed by Benjamin Huger, 1857
"Notes on the Plans of the Powder Mill and Machinery of E.I. du Pont de Nermours & Company", 1858
Includes additional notes by Lammot du Pont and a list of major explosions at the plant from 1805 to 1858.
"Adjustment of Our Ballistic Pendulum" by Lammot du Pont, 1858
Contains mathematical calculations and additional data.
"Residuum Left by Gunpowder" by Lammot du Pont, 1858 July
Contains mathematical calculations and records of experiments.
Lammot du Pont memorandum on experiments with new grooved eprouvette, 1858 November 9
Lammot du Pont notes concerning powder samples ordered by Major Peter V. Hagner, 1860-1861
Includes: tabulations of ratio of gravemetric density to specific gravity of powder, a note on sieves and tabulation of mixing, a note on Smith & Rand powder, experiments on blasting powder, list of deficient canisters, a note on experiments on density of powder pressed in horizontal presses, and tabulation marked "index" giving number, case, shelf, and remarks.
Lammot du Pont notes and tabulation on pendulum eprouvette, 1862 July 8
Lammot du Pont brief note on passers, undated
Giving the meshes.
Lammot du Pont formula for weight of spring, undated
Lammot du Pont note on experiments on combustion of powder, undated
Lammot du Pont letters to Major Peter V. Hagner, undated
Relating to sifting and rolling of dust, with tabulations; fashioning of an eprouvette plug, with diagram; tabulation of tests, giving details of each firing; notes on residuum tests; "Comparison of all results sent us, of powder on Major Hagner's spring eprouvette; and the result of an experiment made for the purpose of determining pressure produced by fired gunpowder, tabulations.
"La Semaine" extract, 1848 July 23
On "carbonisation du bois par la vapeur."
