. A practical workshop companion for tin, sheet iron and copper plate workers : containing rules for describing various kinds of patterns used by tin, sheet iron and copper plate workers : practical geometry, mensuration of surfaces and solids, tables of the weights of metals, lead pipe, etc., tables of areas and circumferences of circles : japans, varnishes, lackers, cements, compositions, etc., etc., Describe a circle, three-quarters of an inch larger in diameterthan a circle that will cut each corner of the article the top orcover is for; set off the squares from B to C ; take one hal
. A practical workshop companion for tin, sheet iron and copper plate workers : containing rules for describing various kinds of patterns used by tin, sheet iron and copper plate workers : practical geometry, mensuration of surfaces and solids, tables of the weights of metals, lead pipe, etc., tables of areas and circumferences of circles : japans, varnishes, lackers, cements, compositions, etc., etc., Describe a circle, three-quarters of an inch larger in diameterthan a circle that will cut each corner of the article the top orcover is for; set off the squares from B to C ; take one half of thelargest square ; and \with B and C as centres, describe arcs Gand H ; then with A as centre, describe the arc cutting the squareat I and the arc D ; where the arcs GD and HD intersect, draw thelines AE and AF, also the lines BE and CF. rou DESCRIBING PATTERNS. 19 STEAMER COYER. To describe a Steamer Cover. Pig. Describe a circle one inch larger in diameter than the hoopafter the edge is h;id off; lay the hoop on the pkte, allowing anedge each side, as shown by the diitance between the two circlesand tbe dot on the line AG, the circle DE representing the hoop :take the distance from A to the dot on the lino AO, and set offthree times the distance on the outer circle, as from A to B; drawthe lines AC and BO, cutting the centre at 0. Edges to ibc allowed. ^ .;\f,Vt/\>f PRACTICAL EULES C>iAn OVAL. To describe an Ellipse or Oval, having one TwoDiameters given.
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Keywords: ., bookcentury18, bookdecade1870, booksubjectmetalwork, bookyear1876
