Word: sparkly
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Dates: during 1930-1939
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...applied an instant too long, the soft brass or bronze is burned and the seam ruined. In the Longoria device the weld is made with a small needle projecting from an insulated handle. When the needle is lifted from the seam, current stored in three condensers is discharged, a spark jumps the gap and just the right amount of heat is delivered to make a good seam. On this apparatus and process Dr. Longoria was granted U. S. Patents Nos. 1,972,529 and 1,972,530. The method was respectfully discussed last March in The Welding Engineer...
...deserted was the underground Lakeside Exhibition Hall, where visitors were invited to prowl through plaster of Paris mines, gaze at blast furnaces and Bessemer converters, store away such bits of useful knowledge as: "It takes five tons of material to make one ton of steel." Touching off a brighter spark of interest was the Hall of Progress. There, not far from a distiller's display, was the Woman's Christian Temperance Union's booth, the Ohio State Chiropractic Society's show, a $275,000 exhibit of the good works of the Federal Government. In the Automotive...
...offering prolonged electric resistance without burning out. Of this alloy or its variants are now made the wire elements which glow in electric stoves, heaters, curling irons, percolators, toasters, sterilizers, waffle irons, cigaret lighters, bed pads. Such an alloy is also used in 85% of all U. S. spark plugs. Metalman Marsh was the first man to make it, first to produce it commercially, first to put it on the market. More than half the alloy wire in U. S. heating elements is still made in his tidy Detroit plant...
French Concessions- To help hasten this return, France granted reductions in 19 rates. Duty on grapefruit and automobile chassis was halved. Reductions of smaller and varying percentages were made on sewing-machine heads, canned asparagus, spark plugs, dried prunes, fountain pens, raisins, cash registers and unsweetened pineapple juice (the French obtain their sweetened juice from French West Africa and Guadeloupe). A 75% reduction was made for canned pilchards (sardines), U. S. exports of which in late years have been too negligible for anyone to list. French quotas were enlarged on 44 U. S. products including fresh apples and pears, false...
...crankshaft speed-up to 250 m. p. h. Light from the explosion passes through a heavy quartz window in the cylinder head to a stationary lens, thence to a series of 30 rapidly moving lenses which follow the film and hold each image motionless on it during exposure. The spark is seen first like a lone star in a black sky, then a flame front spreading and backwashing around the base of the chamber. At one stage back pressure was observed to make combustion-produced carbon dioxide hotter than the actually burning gases. Pressure-curve recorders enable motormen...