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A square Opening for a Trap-Door should be left in the Closing of the Chimney, for the Sweeper to go up: The Door may be made of Slate or Tin, and commonly kept close shut, but so plac’d as that turning up against the Back of the Chimney when open, it closes the Vacancy behind the false Back, and shoots the Soot that falls in Sweeping,...
with Water. I have also smelt the Electrical Fire, when drawn thro’ Gold, Silver, Copper, Lead, Iron, Tin,All printed editions omit: “tin.”
is also Run, and appears blisterd, when examined by a magnifying Glass. The Jarrs I make Use of hold 7 or 8 Gallons, and are Coated and Lined with Tin foil. Each of them takes 1000 Turns
...silver will receive a blue stain, near the colour of a watch spring. A bright piece of iron will also be spotted, but not with that colour: it rather seems to be corroded. On gold, brass, or tin, I have not perceived that it makes any impression. But the spots on the silver or iron will be the same, whether the bullet be lead, brass, gold, or silver. On a silver bullet there will...
fire from the clouds; and succeeded, by means of a tin tube, between three and four feet in length, fixed to the top of a glass one, of about eighteen inches. To the upper end of the tin tube, which was not so high as a stack of chimnies on the same house, I fastened three needles with some wire; and to the lower end was solder’d a tin cover to keep the rain from the glass tube, which was set...
I have shipt 18 Glass Jarrs in Casks well pack’d, on board Capt. Branscombe for Boston. 6 of them are for you, the rest I understand are for the College. Leaf Tin, such as they use in silvering Looking Glasses, is best to coat them with; they should be coated to within about 4 or 5 Inches of the Brim. ...Tin into Pieces of the Form in the Margin, and they will comply better with the Bellying of...
approved the next day; the diploma was prepared and signed on July 25, and President Edward Holyoke presented it to Franklin two days later, with a tin box, emblazoned with the college arms, to keep it in.
Let a tin tube, of four or five feet in length, and about two inches in diameter, be insulated by silk; and from one end of it let the cork-balls be suspended by linen threads. Electrify it, by bringing... ...the return of the tube they will approach each other till they touch, and then repel as at first. If the tin-tube be electrified by wax, or the wire of a charg’d phial, the balls will be...tin
the Beginning of this Year twelve Tin Boxes were provided, on which were written these Words in Gold Letters,
Fix a Tassel of 15 or 20 Threads, 3 Inches long at one End of a Tin Prime Conductor; (mine is about 5 Feet long, and 4 Inches Diameter) supported by Silk Lines.