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- Julius Lewkowtisch Labratory
- Laboratories;
- 71 Priory Rd., West Hampstead, London
- Litchfield Collection on the History of Fatty Materials
- Lewkowitsch Home in London
- Photographs; Houses;
- 71 Priory Road, West Hampstead
- Litchfield Collection on the History of Fatty Materials
- Katherine Lewkowitsch
- "Kate, age 25" (second, left)
- Litchfield Collection on the History of Fatty Materials
- Essence of Beef
- Oils & fats; Food processing machinery;
- "Lard, Tallow, and Fruit-Press"
- Litchfield Collection on the History of Fatty Materials
- Self-contained Seed Screen for Linseed and Similar Seeds
- Oils & fats; Food processing machinery;
- "Seed Screen No. 287. This screen as shown above, is supported on an iron frame and is quite self-contained, being fitted wtih a pulley for driving from any shaft. The screened material and tailings can be discharged at either end. This screen will...
- Litchfield Collection on the History of Fatty Materials
- Self-contained Decorticator and Separator for Castor Seed, No. 196
- Oils & fats; Food processing machinery;
- "The machines are for treating the Castor Beans shown in illustration B, leaving the white kernel C, ready for the press."
- Litchfield Collection on the History of Fatty Materials
- DuPont Experimental Station
- Laboratories
- A man walks outside a large building with papers under his arm.
- Hagley Digital Images
- Thirty-Chambered Filter Press
- Machinery;
- Aitkin, McNeil & Co., Glasgow
- Litchfield Collection on the History of Fatty Materials
- Testing for flesh tones
- At DuPont's Photo Products laboratory, at Parlin, New Jersey this girl poses to test an experimental film's ability to match flesh tones. At this laboratory, research is also conducted on motion picture, x-ray, portrait and photolithographic films;...
- DuPont Product Information Photographs
- Bancroft Memo Book
- Textile industry; Wages;
- Book contains information about setting up factory and machinery, many pages copied from Woods papers, also shows pricing and wages.
- General Text Collection
- Rotary pumps
- Machinery; Oils & fats;
- Caption text: "Cylinder of iron or bronze with wing valves adapted for pumping oils, varnish, soaps, etc. Can be used for blowing and agitating."
- Litchfield Collection on the History of Fatty Materials
- Coils
- Caption text: "Length of Coils: 13 ft. 4 1/2 in. Dia. of Coils 5 ft. 3 in., 4 ft. 3 in., 3 ft. 3 in. Weight of Coils..."
- Litchfield Collection on the History of Fatty Materials
- A. Lyon's Fat Shreading Machine
- Oils & fats; Food processing machinery;
- Caption text: "This machine is for cutting the fat up into strips for melting, so that it renders in half the time that it would do by throwing the fat into the melting pan in the rough state, also where the fire pans are used, or for making Tallow...
- Litchfield Collection on the History of Fatty Materials
- Barton H. Jenks papers, collection guide
- Collection guide; Manufacturing and related sectors
- Collection guide for Barton H. Jenks papers. The papers include an annotated copy of the Bridesburg Manufacturing Company’s 1867 trade catalogue, and a series of patent papers relating to Barton H. Jenks’ inventions. These include textile...
- Hagley Collection Guides and Finding Aids
- Brandywine Manufacturers' Sunday School papers, collection guide
- Collection guide; du Pont Family
- Collection guide for Brandywine Manufacturers' Sunday School Papers, a nonsectarian school offering classes in reading, writing, arithmetic, and Bible lessons, was incorporated in 1817. Papers include student attendance forms, registration books,...
- Hagley Collection Guides and Finding Aids
- E.I. du Pont de Nemours & Company records, collection guide
- Collection guide; DuPont Company
- Collection guide for E.I. du Pont de Nemours & Company records. The records are arranged into 3 series: Series A contains correspondence (1802-1891, bulk 1802-1815) with over 500 individuals and firms, including customers, suppliers, sales agents...
- Hagley Collection Guides and Finding Aids
- Edward D. deLuca papers, collection guide
- Collection guide; Business services
- Collection guide for Edward D. deLuca papers. The papers cover his work as a management expert both in private practice and for the Agency for International Development and the cities of Baltimore and Pittsburgh. The papers are primarily personal...
- Hagley Collection Guides and Finding Aids
- Eleuthère Irénée du Pont and Sophie Dalmas du Pont Papers, collection guide
- Collection guide; du Pont Family
- Collection guide for Eleuthère Irénée du Pont and Sophie Dalmas du Pont Papers. Eleuthère Irénée du Pont (1771-1834) was the founder of the gun powder manufacturing firm E.I. du Pont de Nemours & Co. The collection consists of both personal...
- Hagley Collection Guides and Finding Aids
- Elmer Ambrose Sperry papers, collection guide
- Collection guide; Manufacturing and related sectors; Research and invention
- Collection guide for Elmer Ambrose Sperry papers (1860-1930). Sperry invented the ship gyrostabilizer, gyrocompass, marine gyropilot, high-intensity search light, and aerial torpedo, and founded the Sperry Gyroscope Company. This collection...
- Hagley Collection Guides and Finding Aids
- Elva M. Chandler papers, collection guide
- Collection guide
- Collection guide for Elva M. Chandler papers. The Elva M. Chandler Papers primarily reflect her memberships in a variety of organizations. There are also some personal papers such as correspondence, bills and receipts, and tax records.
- Hagley Collection Guides and Finding Aids