soft steel
61Katana — For other uses, see Katana (disambiguation). The katana (刀?) is one of the traditional Japanese swords (日本刀, nihonto …
62M18 Claymore mine — M18A1 Claymore mine The M18A1 Claymore mine with the plastic trigger and detonator wire Type Direction fragmentation anti personnel mine …
63Roller printing on textiles — Roller printing, also called cylinder printing or machine printing, on fabrics is a textile printing process patented by Thomas Bell of Scotland in 1783 in an attempt to reduce the cost of the earlier copperplate printing. This method was used in …
64Linear-motion bearing — A linear motion bearing or slide is a bearing designed to provide free motion in one dimension. There are many different types of linear motion bearings and this family of products is generally broken down into two sub categories: rolling element …
65Penny black printing plates — The printing plates for the penny black, two pence blue and the VR official were all constructed by Perkins Bacon, the printers of the first postage stamps issued in Great Britain.The construction of these plates was long winded and complicated,… …
66duralumin — /doo ral yeuh min, dyoo /, n. an alloy of aluminum that is 4 percent copper and contains small amounts of magnesium, manganese, iron, and silicon: used for applications requiring lightness and strength, as in airplane construction. [1905 10; < L… …
67Actinide — The atomic bomb dropped on Nagasaki had a plutonium charge.[1] The actinide or actinoid (IUPAC nomenclature) series encompasses the 15 metallic chemical elements with atomic numbers from 89 to 103, actinium thro …
68Harvey process — Har vey proc ess (Metal.) A process of hardening the face of steel, as armor plates, invented by Hayward A. Harvey of New Jersey, consisting in the additional carburizing of the face of a piece of low carbon steel by subjecting it to the action… …
69gauge — gaugeable, adj. gaugeably, adv. /gayj/, v., gauged, gauging, n. v.t. 1. to determine the exact dimensions, capacity, quantity, or force of; measure. 2. to appraise, estimate, or judge. 3. to make conformable to a standard. 4. to mark or measure… …
70transferring machine — noun : a press for impressing an engraved and hardened steel die on a soft steel roller that is afterward hardened and used to impress a plate (as for printing bank notes or stock certificates) …
