Tin-foil Sentence Examples
For making tin-foil the metal is rolled into thin sheets, pieces of which are beaten out with a wooden mallet.
This armature plate revolved in front of a field plate carrying two pieces of tin-foil backed up by larger pieces of varnished paper.
These glass disks carry on them a certain number (not less than 16 or 20) tin-foil carriers which may or may not have brass buttons upon them.
Dr John Bevis of London suggested, in 1746, the use of sheet lead coatings within and without the jar, and subsequently the use of tin foil or silver leaf made closely adherent to the glass.
In other cases, Leyden jars or condensers take the form of sheets of mica or micanite or ebonite partly coated with tin foil or silver leaf on both sides; or a pile of sheets of alternate tin foil and mica may be built up, the tin foil sheets having lugs projecting out first on one side and then on the other.Advertisement
For the purposes of wireless telegraphy, when large condensers are required, the ordinary Leyden jar occupies too much space in comparison with its electrical capacity, and hence the best form of con denser consists of a number of sheets of crown glass, each partly coated on both sides with tin foil.
The tin foil sheets have lugs attached which project beyond the glass.
When glass tubes are used it is better to employ tubes thicker at the ends than in the middle, as it has been found that when the safe voltage is exceeded and the glass gives way under electric strain, the piercing of the glass nearly always takes place at the edges of the tin foil.
Owing to the variation in the value of the dielectric constant of glass with the temperature and with the frequency of the applied electromotive force, and also owing to electric glow discharge from the edges of the tin foil coatings, the capacity of an ordinary Leyden jar is not an absolutely fixed quantity, but its numerical value varies somewhat with the method by which it is measured, and with the other circumstances above mentioned.
After the bland meal was over and the tin foil discarded, Dean donned his coat and walked up town.Advertisement
The best utensils for cleaning a barbecue are a wire brush or crumpled tin foil.
Edison develops tin foil cylinder phonograph; files patent for it on December 24 which is awarded on February 19, 1878.
Click on picture to enlarge l Edison commissions 600 tin-foil phonographs from several workshops to circulate for demonstration purposes.
Commercially pure tin is used for making such apparatus as evaporating basins, infusion pots, stills, &c. It is also employed for making two varieties of tin-foil - one for the silvering of mirrors (see Mirror), the other for wrapping up chocolate, toilet soap, tobacco, &c. The mirror foil must contain some copper to prevent it from being too readily amalgamated by the mercury.
On a rotating glass or ebonite disk were placed carriers of tin-foil or metal buttons machine.Advertisement
Benjamin Franklin and Bevis devised independently the form of condenser known as a Franklin or Leyden pane, which consists of a sheet of glass, partly coated on both sides with tin foil or silver leaf, a margin of glass all round being left to insulate the two tin foils from each other.
The jar has a certain capacity C which is best expressed in microfarads or electrostatic units (see Electrostatics), and is determined by the surface of the tin foil and thickness and quality of the glass.
It 's not any thicker than tin foil in a pack of cigarettes.
After being separated into teams, participants are given either tin foil or rolls of toilet paper.
Place the finished turkey on your countertop and cover it with a tent of tin foil.Advertisement
While you can buy a nice brass bristled grill brush with which to clean your grill, a ball of tin foil can serve the same purpose.
After that time, turn off the grill and run balled tin foil over the heated grate.