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National Archives. Washington, D.C., Nov. 22. In the powerful press, the sheets of acetate, under heat and pressure 'melt' into the pores of the paper and adhere to each other as well. One additional advantage of this process is that, after being pressed with the sheets of cellulose acetate, the paper is thinner and takes up less room than it did originally. The result is a sheet of paper and acetate which comes off the polished metal plates as a single sheet. Tests for the aging of this material made by the Bureau of Standards in Washington have shown that this treatment of the paper, called laminating is as permanent as it is possible to make any record of paper
Crew galley, U.S.S. N. Dakota - Glass negative photogrpah. Public domain.
Бумажная фабрика Роджерса и Рейнера (Царскославянская) 2
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National Archives. Washington, D.C., Nov. 22. In the powerful press, the sheets of acetate, under heat and pressure 'melt' into the pores of the paper and adhere to each other as well. One additional advantage of this process is that, after being pressed with the sheets of cellulose acetate, the paper is thinner and takes up less room than it did originally. The result is a sheet of paper and acetate which comes off the polished metal plates as a single sheet. Tests for the aging of this material made by the Bureau of Standards in Washington have shown that this treatment of the paper, called laminating is as permanent as it is possible to make any record of paper
National Archives. Washington, D.C., Nov. 22. Preservation of documents has long been a problem in libraries and offices of record. It was once done by a process known as 'crepelining,' which consisted in placing coarsely woven silk over and under the paper to be preserved with the use of adhesive. The most modern process now used is called the laminating process and consists in sandwiching the document between two sheets of thin, transparent cellulose acetate. This is then placed between two highly polished metal plates and subjected to heat and pressure in a hydraulic press
Historical documents guarded with great care by National Archives. Washington, D.C., Nov. 22. The treatment and careful handling of valuable historical documents is of prime consideration at the National Archives in Washington, D.C., Records, legal papers, historica data, etc., of all descriptions must be preserved so that they last indefinately. This picture shows documents being unloaded at the National Archives by a worker who uses a specially hand made truck
Historical documents guarded with great care by National Archives. Washington, D.C., Nov. 22. The treatment and careful handling of valuable historical documents is of prime consideration at the National Archives in Washington, D.C., Records, legal papers, historica data, etc., of all descriptions must be preserved so that they last indefinately. This picture shows documents being unloaded at the National Archives by a worker who uses a specially hand made truck
Government discovers method to preserve movie film indefinitely. Washington, D.C., July 8. People living in the year 2000 will be able to see and hear today's history in the making through experiments on preserving movie film now being conducted by the National Bureau of Standards. The experts at the bureau recently completed "accelerated aging tests in which films in six months went through the effects of 50 years' storage in a cool dark room. These tests showed that cellulose, or explosive film, would last from 50 to 100 years. The new Safety or Acetate film "may be preserved for longer periods." Unofficially, the experts put the figure at several hundred years. The following set of pictures were made at the Bureau of Standards and the National Archives Building. (1) Accelerated aging, The stability of the films is tested similarly to paper. They are heated in this oven at 100 [degrees] C and tested for loss of flexibility and for evidences of chemical decomposition. Arnold Soorne, of the Bureau Staff, is picture making the test
Washington, D.C. The National Archives building
[Assignment: 59-CF-DS-15985-04] The American Academy of Diplomacy's 15th Annual Diplomatic Awards Luncheon in the Benjamin Franklin Room, [featuring speech by former Secretary of State Henry Kissinger on the contributions of the late Joseph Sisco. Also delivering remarks were Academy officers and award presenters including former U.S. Ambassador to the Soviet Union and France, Arthur Hartman; former U.S. Ambassador to Israel, Samuel Lewis; and former U.S. Ambassador to Hungary, Mark Palmer. Among those accepting writing awards were Washington Post diplomatic affairs correspondent Robin Wright; ... [59-CF-DS-15985-04_Am_Acd_Dipl_034.jpg]
[Assignment: 59-CF-DS-15985-04] The American Academy of Diplomacy's 15th Annual Diplomatic Awards Luncheon in the Benjamin Franklin Room, [featuring speech by former Secretary of State Henry Kissinger on the contributions of the late Joseph Sisco. Also delivering remarks were Academy officers and award presenters including former U.S. Ambassador to the Soviet Union and France, Arthur Hartman; former U.S. Ambassador to Israel, Samuel Lewis; and former U.S. Ambassador to Hungary, Mark Palmer. Among those accepting writing awards were Washington Post diplomatic affairs correspondent Robin Wright; ... [59-CF-DS-15985-04_Am_Acd_Dipl_031.jpg]
[Assignment: 59-CF-DS-15985-04] The American Academy of Diplomacy's 15th Annual Diplomatic Awards Luncheon in the Benjamin Franklin Room, [featuring speech by former Secretary of State Henry Kissinger on the contributions of the late Joseph Sisco. Also delivering remarks were Academy officers and award presenters including former U.S. Ambassador to the Soviet Union and France, Arthur Hartman; former U.S. Ambassador to Israel, Samuel Lewis; and former U.S. Ambassador to Hungary, Mark Palmer. Among those accepting writing awards were Washington Post diplomatic affairs correspondent Robin Wright; ... [59-CF-DS-15985-04_Am_Acd_Dipl_050.jpg]
National Archives. Washington, D.C., Nov. 22. In the powerful press, the sheets of acetate, under heat and pressure 'melt' into the pores of the paper and adhere to each other as well. One additional advantage of this process is that, after being pressed with the sheets of cellulose acetate, the paper is thinner and takes up less room than it did originally. The result is a sheet of paper and acetate which comes off the polished metal plates as a single sheet. Tests for the aging of this material made by the Bureau of Standards in Washington have shown that this treatment of the paper, called laminating is as permanent as it is possible to make any record of paper
Summary
Public domain photograph, 1910s-1920s portrait, American, free to use, no copyright restrictions image - Picryl description
Tags
district of columbia
washington dc
glass negatives
national archives
nov
press
sheets
acetate
heat
pressure
pores
paper
advantage
process
cellulose
cellulose acetate
room
result
plates
tests
bureau
standards
treatment
record
united states history
workers
industrial history
library of congress
Date
1922
Contributors
Harris & Ewing, photographer
Location
Washington, District of Columbia, United States
,
38.90719, -77.03687
Source
Library of Congress
Link
Copyright info
No known restrictions on publication.