Read Ebook: Moxon's mechanick exercises volume 1 (of 2) by De Vinne Theodore Low Annotator Moxon Joseph

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Ebook has 67 lines and 59545 words, and 2 pages

In like manner, you may measure any Angle in the Drafts of Letters, by describing a small Arch on the Angular Point, and an Arch of the same Radius on the Centre of your divided Circle: For then, placing one Foot of your Compasses at the Intersection of the small Arch with either of the straight Lines proceeding from the Angle in the Draft, and extending the other Foot to the Intersection of the small Arch, with the other straight Line that proceeds from the Angle, you have between the Feet of your Compasses, the Width of the Angle; and by placing one Foot of your Compasses at the Intersection of any of the straight Lines that proceed from the Centre of the divided Circle, and the small Arch you made on it, and making a Mark where the other Foot of your Compasses falls in the said small Arch, you may, by a straight Ruler laid on the Centre of the divided Circle, and the Mark on the small Arch, see in the Limb of the Circle the number of Degrees contained between the Diametral, or straight Line and the Mark.

If there be Flaws in it, you must also take good Welding Heats, so hot, that the contiguous sides of the Flaws may almost Run: for then, snatching it quickly out of the Fire, you may labour it together till it become close and sound.

This is no strict Length for the Shank, but a convenient Length; for should the Letter Cut on the Face be small, and consequently, the Shank so too, and the Shank much longer, and it not Temper'd in the middle, it might, with Punching into Copper, bow in the middle, either with the weight of the Hammer, or with light reiterated Blows: And should it be much shorter, there might perhaps Finger-room be wanting to manage and command it while it is Punching into the Copper. But this Length is long enough for the biggest Letters, and short enough for the smallest Letters.

What Heighth and Thickness is, I have shewed before in this ?, but not what Body is; therefore I shall here explain it.

He also counts how many are Ascendents and Descendents, m thick, n thick, and Space thick; still considering how many of them are to be Counter-punch'd, and how many not; and makes Wooden Patterns for them.

The inconvenience that this Tool is subject to, is, That with much using its Face will work out of Flat. Therefore it becomes the Workman to examine it often, and when he finds it faulty to mend it.

But if he works on the Triangle of the Top, he is careful not to Cut into the Straight of the Inside lines of the Stems, but to keep the Insides of that Triangle in a perfect straight line with the other part of the Inside of the Stem.

Having well shaped the Inside Stroaks of his Letter, he deepens the Hollows that he made, as well as he can, with his Sculptors and Gravers: And the deeper he makes these Hollows, the better the Letter will prove. For if the Letters be not deep enough, in proportion to their Width, they will, when the Letter comes to be Printed on, Print Black, and so that Letter is spoiled.

If on the inside of the Stroak the Graver or Sculptor have not run straight and smooth on the Stroak, but that an Extuberance lies on the Side, that Extuberance cannot easily be taken off, by beginning to Cut with the Edge of the Graver or Sculptor just where the Extuberance begins: Therefore he fixes the Point of his Graver or Sculptor in the Bottom of the Hollow, just under the Stroak where the Extuberance is, and leans the Edge of his Graver or Sculptor upwards; so as in forcing the Point of the Graver or Sculptor forwards, at the Bottom of the Hollow, the Edge of the Graver or Sculptor may slide tenderly along, and take along with it a very small, nay, invisible Chip of the most Prominent Part of the Extuberance; and so, by this Process reitterated often, he, by small Degrees, Cuts away the Extuberant part of the Stroak.

Between two of these Lines is contained the Heighth of all Letters.

The Long-Letters are contained between the Top and Bottom-Lines, The Ascending Letters are contained between the Top and Foot-Lines, The Descending Letters are contained between the Head and Bottom-Lines, and The Short-Letters are contained between the Head and Foot-Lines.

Through what Parts of the Body all these Lines pass, you may see by the Drafts of Letters, and the following Descriptions.

What the Long-Letters, Ascending Letters, and Short-Letters are, I shewed in the afore-cited ?. Therefore I shall now proceed to particular Terms relating to the Face. As,

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Of each of these in order.

TRANSCRIBER'S NOTES.

PLEASE READ THIS BEFORE YOU DISTRIBUTE OR USE THIS WORK

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