. The Coach-makers' illustrated hand-book. to 4 feet 2 inches fourteen spokes will be a propernumber, but as the size of the wheel increases or decreases, add or diminish the num-ber of spokes, being careful to reduce your tenon proportionately, in order to notweaken the hub. CENTERING is a useful instrument for centering of all circular work, especially in shops where they mortise their own hubs. Its con-struction is very simple, being but a T-squarewhose stock is a portion of a circle. Let AC be the stock made of one piece of hard woodwell seasoned (the extremities of which at Aa
. The Coach-makers' illustrated hand-book. to 4 feet 2 inches fourteen spokes will be a propernumber, but as the size of the wheel increases or decreases, add or diminish the num-ber of spokes, being careful to reduce your tenon proportionately, in order to notweaken the hub. CENTERING is a useful instrument for centering of all circular work, especially in shops where they mortise their own hubs. Its con-struction is very simple, being but a T-squarewhose stock is a portion of a circle. Let AC be the stock made of one piece of hard woodwell seasoned (the extremities of which at Aand C should have a small piece of steel affixedso that it should not be subject to wear by use),into which stock the blade B D is tenanted, sothat A B is exactly equal to B C, and at the same time perpendicular or square to thecord A C. It is evident that if this instrument is applied to any circle, so that theparts A and C touch it, the blade B D will pass through the center of the circle, andby two applications the center will be 104 COACH-MAKEKS ILLUSTRATED HAND-BOOK. PART DEPARTMENT. »<Ke THE BLACKSMITH. •• Ho, ye who at the anvil toil, and strike the sounding blow,Where, from the burning irons breast, the sparks fly to and fifo,While answering to the hammers ring, and fires intenser glow !—Oh, while ye feel tis hard to toil and sweat the long day through,Bemember, it is harder still to have no work to dot WE imagine we hear the sons of Vulcan throughout the land bemoaning their hardfate. Oh, who, they say, are doomed to lead such a fiery life as we. Althoughthe sun may pour his sultry rays, causing the atmosphere to quiver above the parchedearth, we may not cool the forges heated breath. Enfeebled by the atmosphere fromwithout, we must nevertheless keep up an intense heat in the shop, and for ten longhours stand between these two fires, while the violent exercise which our trade de-mands causes the blood to boil almost within our veins. Ver
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectcarriag, bookyear1875
