Processes Or
Processes Or Manipulation.—throwirig.—the Process Of " Throwiag" Is The Application Of The Principle Of " Turning " To A Plastic Material, The Turner's Tools Being Replaced By The More Delicate Fingers Of The " Thrower." The Main Apparatus, Or " Wheel," Consists Of A Horizontal Disc, Rigidly Fixed On The ...
Processes Or Woollen
Processes Or Woollen Maneeacture. —wool, In Its Transformation Into Woven Fabrics, Passes Through The Following Processes, Which, To Save Frequent Repetition Subsequently, Are Hero Briefly Defined, (1) "stapling " Or " Sorting," Which Ie The Division Of The Fleece Into Its Several Qualities. (2) "opening" Or " Cleansing ": Freeing ...
Production And
Production And Cowierce.—the Silk Production Of Europe Nnay Be Approximately Estimated At 9 Million Lb. Yearly, While Asia Affords An Additional 11 Million Lb. For Export To European Markots. The Chief Contributors To This Enormous Total Of 20 Raillion Lb. Are As Follows :—china, 8 Million Lb. ; Italy, 6-1 ...
Pyroligneoiis Acid Lat
Pyroligneoiis Acid (lat. Acidum Pyrdignosum ; Ger. H0/2.sagre Or ; Fr. Acide Pyro Ligneux). The Impact Or Pyroligneous Aeid Is Obtained By The Dry Distillation Of Wood In Close Ovens. From The First Distillation It Is A Dark, Yellowish-brown Liquid Of Varying Strength, Possessing An Unpleasant Clinging Odour From The ...
Railway Grease Soap
Soap, Railway-grease, And Glycerine. Soap (fn., Savon ; Ger., Seife).—although Soap Has Been Made And Used For Many Centuries (it Is Mentioned By Pliny, And The Remains Of A Soap-factory, With Lime, Ite., Remaining In It, Are Still Shown In Pompeii), The Principles Which Should Guide Its Manufacture Have Only ...
Recovery Of The Nitrogen
Recovery Of The Nitrogen Compounds.—the Fact That Nitrogen Compounds Are Absorbed By Sulphuric Acid Of A Certain Atrength, Furnishes Us With A Means Of Recovering A Portion Escaping Unused In The Exit Gases, And Which May Be Re-ueed In The Process. For One Method, And That By Far The Moat ...
Recovery Or The
Recovery Or The A Cid.—when Cloth That Is Partially Impregnated With Oxalic Acid (or Tartaric Acid) Is Passed Through The Discharge Vat, Containing Chloride Of Lime, With A Greater Or Smaller Excess Of Lime, Decomposition Ensues And The Acids Are Converted Into Their Calcium Salts, And Theae Being Insoluble Settle ...
Reds
Reds. Brazil-wood Lake.—(a) Digest 1 Lb. Ground Brazil-wood In 4 Gal. Water For 24 Hours, Boil 1 Hour, Aud Add 11 Lb. Alum Dissolved In A Little Water ; Mix, Decant, Strain, Add 1 Lb. Tin Solution, Again Mix Well, And Filter ; To The Clear Liquid, Cautiously Add A ...
Reds 1
Reds : (1) Eosine Reds.—these Shades Range From A Cherry-red To A True Rose, And Have Not The Violet Cast Of Magenta. For A More Bluish Shade, Steep In A Bath Of Curd-soap At 62° (144° F.) ; Work For Hour ; Rinse ; And Work For The Same Length ...
Removal Of Arsenic From
Removal Of Arsenic From Sulphuric Acid.—in Many French Works The Sulphuric Acid Is Freed From Arsenic By Sulphide Of Barium. The Sulphate Of Barium Formed Falls To The Bottom Of The Vessel With The Sulphide Of Arsenic. In Germany, Sulphuretted Hydrogen Gas Is More Generally Used. At The Ochre Mines ...
Resinous And Gummy Substances
Resinous And Gummy Substances (fr., Matmres Resineuses Et Gommeuses ; Ger., Harz- Und Gummi-arten). Resinous And Gummy Substances May Be Primarily Divided Into Three Great Classes—gums, Resins, And Indiarubbers ; Each Of These Classes May Be Split Into A Number Of Sub-sections. 1. Gums. —the Term " Gum" Is Properly ...