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The first step of treatment stabilized the ink of the text using a gelatin adhesive. The dirt and grime were then cleaned from the parchments, though original intentional marks were left alone. The Constitution and the Bill of Rights were then humidified and dried under tension to flatten the parchments.
The conservation and restoration of woodblock prints, is the process of caring for and repairing images made from a specific printing process involving using wooden reliefs to stamp or imprint an image onto paper.
The term is based on the word "whet", which means to sharpen a blade, [3] [4] not on the word "wet". The verb nowadays to describe the process of using a sharpening stone for a knife is simply to sharpen, but the older term to whet is still sometimes used, though so rare in this sense that it is no longer mentioned in, for example, the Oxford Living Dictionaries.
A woodworking float (more rarely used in silversmithing), [1] also called a planemaker's float, is a tapered, flat, single cut file [2] of two types: edge float and the flat sided float [3] which are traditional woodworking tools generally used when making a wooden plane. The float is used to cut, flatten, and smooth (or float) key areas of ...
A waterstone used mistakenly with oil usually requires re-surfacing afterwards to repair it. All stones lose their flatness over time, but this is much quicker with waterstones, owing to the production of the slurry, and so these have an obvious flattening process as part of their regular use.
The IRS boosted taxpayer services through Democrats’ Inflation Reduction Act but still faces processing claims from a coronavirus pandemic-era tax credit program and is slow to resolve certain ...
By testing all three in pairs against each other, it is ensured that the surfaces become flat. Using two surfaces would result in a concave surface and a convex surface. Eventually a point is reached when many points of contact are visible within each square inch, at which time the three surfaces are uniformly flat to a very close tolerance.
A gauge block is a block of metal or ceramic with two opposing faces ground precisely flat and parallel, a precise distance apart. Standard grade blocks are made of a hardened steel alloy, while calibration grade blocks are often made of tungsten carbide (WC), chromium carbide (CrC) or ceramic ( SiO 2 -based) because they are harder and wear ...