The glass blower is indispensable to the modern research lab. At the Experimental Station located near Wilmington, Delaware a glass blower's shop is maintained where special apparatus necessary for research is fashioned. Some of the pieces...
Hendrick requests that they make a triple engine for an automobile, complete with necessary chains and sprockets for a surrey, as well as a very strong double brake.
A flyer block of nylon, used in textile machinery, travels as fast as 15,000 revolutions per minute without lubrication. Attached to a spindle in the spinning operation, the flyer clock holds wires which provide necessary tension to the yarn. The...
Table of Contents: Pocket billiards makes a comeback; A longer workweek under water; Design originals: no waiting necessary; A notable new number in nylon; Highways of an enchanted land; Finishes for a fleet afield; A brighter day for the lowly...
Periodicals; Chemical industry; Explosives; Dynamite;
Table of Contents: Avoid Thawing Accidents; The Trouble Duo; Improved Red Cross Dynamite; A Winner: Red Cross Extra 20%; Snow Doesn't Fease the Red Cross Blaster; Word "Danger" on Every Cartridge; A Remarkable Shot with DuPont Straight Dynamite and...
No matter what precarious position or circumstances Uncle Sams fighting men get themselves in to, it will be next to impossible for the men to lose their identities. The army has looked after that and every man is provided with a positive means of...
New York NY- This scene at R.H. Macys is typcial of what is going on in all the Metropolitan department stores. The crowds were so dense that it was necessary to rope off the section and permit so many through at a time.
Formed halves of the bomber nose are cemented together with acrylic resin, the same resin of which the Plexiglas sheets are originally made, Here a workmen is trimming the edges of a bombardiers door end the gun-mount hole so that the necessary...
Taken from New York Herald, U.S. Merchant Marine Supplement; Text from image: "A Nation Must Control its Overseas Commerce -- No nation can be really great that does not control its overseas commerce. The upbuilding and operation of ships are...
This new type of outdoor sign, made with plastic faces, is expected to cause a new trend the in the outdoor display industry. Inexpensively lighted with cold cathode tubes, the sign glows brightly and evenly as the Lucite acrylic resin faces...
Baby carriages roll smoothly and quietly with wheel bearings of Zytel nylon resin which require no lubrication. This is one of the first nylon bearing applications to go into commercial production, although the material is now widely used for...
This photograph demonstrates the exceedingly fine particle size of Ludox colloidal silica, a new product of the DuPont Company. This picture was taken with an electron microscope. The magnification is 25,000 diameters. This high magnification was...
A 'quartz fingernail' is used by DuPont chemists to determine how hard a paint film is. The device measures the weight necessary to drive the rounded end of a quartz rod a given distance into the film. In this manner the exact hardness of the paint...
A 'quartz fingernail' is used by DuPont chemists to determine how hard a paint film is. The device measures the weight necessary to drive the rounded end of a quartz rod a given distance into the film. In this manner the exact hardness of the paint...
Accuracy is extremely important in testing dyestuffs. Delicate balances are used, it being frequently necessary to weigh as little as 1 milligram of color. The DuPont Technical Laboratory is equipped with sensitive scientific balances, handled by...
Dr. John Zapp, director of the Haskell Labs for, consults with DuPont engineers to assist them in building maximum safety into new plants. This is another phase of the laboratory's work. Also, whenever it appears necessary, the lab makes surveys of...
Assemblies of glassware of special and complex design are frequently necessary for the analysis of chemical compounds in the development of new and improved products. Here a chemist and laboratory assistant at the Experimental Station set up...
