1 Burned because of the confidential nature of the written or printed matter thereon. 2 This paper is assorted into the following grades and quantities, bringing prices noted: Does not include portion of salaries of charwomen and messengers. Per ton. $22.00 12.00 4.20 5.00 4.00 4.00 Paper of United States Naval Observatory burned on premises. Paper of Marine Corps (Paymaster's Department) is collected and disposed of by owners of rented buildings. In Reclamation Service the waste paper is disposed of by owners of rented buildings In office of Solicitor the waste paper is burned. In Forest Service the waste paper is disposed of by owners of rented buildings. 7 Estimated. In Bureau of Standards the waste paper is destroyed. This paper is assorted into the following grades and quantities, bringing prices noted: Tons 76.36 shavings from blanks and blank books.. 357.67 shavings from book papers (white). 30.90 monotype keyboard paper. 462.65 shavings from book papers (mixed). 930.92 imperfections from printed paper.. 36.46 manila clippings.. 97.74 brown wrappers. 341.98 waste sweepings. 193.73 cuttings from straw board, etc 60.07 discarded publications.. 10 The cost of hauling to burning place not included. "This amount is cost of baling. Does not include east of collection or other handling. Per ton. $38.00 32.00 30.00 14.00 18.00 20.00 4.00 4.00 4.00 10.00 12 This paper is assorted into the following two grades and quantities, bringing prices noted: 14 This paper is assorted into the following two grades and quantities, bringing prices noted: Tons 153.65 waste paper... 2.08 registered package envelopes.. Per ton. ....... $3.00 THE RECOVERY OF FIBER STOCK OF CANCELED PAPER MONEY. SEPTEMBER 21, 1912. The PRESIDENT: The Commission on Economy and Efficiency has under investigation the disposal of the waste paper of the Government and expects to make a full report to you on the subject by the 1st of December. Among other studies being made are the different processes of deinking and defibering canceled paper money. In connection with the latter we beg to submit at this time a preliminary report prepared by Mr. F. C. Clark of the Bureau of Standards, and a member of our subcommittee on waste paper, relative to the results obtained by a new process of reclaiming waste paper, known as the Winestock process. As will be noted from this report, Mr. Clark estimates that an annual saving of $100,000 will result by the use of this new process, instead of the present process of macerating and disposing of this stock. A former investigation was made of this process of defibering and deinking waste paper, by members of this joint committee, at which time, however, studying its application to waste paper generally, of which there are between 5,000 ana 6,000 tons accumulated annually by the various services of the Government at Washington. There is submitted with the report referred to herewith samples of canceled paper money after maceration by the present process, and samples of the macerated paper after being put through the Winestock process. In order that an idea may be had as to what the Winestock process is, the following brief statement may be of interest: The machine is of the nature of an open centrifugal pump, so designed and constructed as to produce a remarkably rapid defibering action upon a sheet of paper without injury to the fibers in any way. The rapid and complete defibering of the paper tends to produce a much more rapid chemical action between the ink and those chemicals used to produce saponification. The time required to produce complete saponification and defiber the paper varies from 2 to 10 minutes in a small machine and would not exceed 30 minutes in a large commercial machine. At the end of this time the pulp is ready for washing, and then it is available for remanufacture into paper without the use of any bleaching agents. The present methods for the recovery of old paper all require cooking from 8 to 16 hours at high pressure and temperature, with a large amount of chemicals, after which time the pulp requires a prolonged washing operation and a high percentage of bleach to produce the desired white color. |