THREE:In working to regular scales, such as one-half, one-eighth, or one-sixteenth size, a good plan is to use a common rule, instead of a graduated scale. There is nothing more convenient for a mechanical draughtsman than to be able to readily resolve dimensions into various scales, and the use of a common rule for fractional scales trains the mind, so that computations come naturally, and after a time almost without effort. A plain T square, with a parallel blade fastened on the side of the head, [80] but not imbedded into it, is the best; in this way set squares can pass over the head of a T square in working at the edges of the drawing. It is strange that a draughting square should ever have been made in any other manner than this, and still more strange, that people will use squares that do not allow the set squares to pass over the heads and come near to the edge of the board."'1. On Friday, the ninth of October, at noon, I stopped at Landen about forty minutes after arriving from Louvain in a terribly long train of passenger carriages and goods vans, with approximately two thousand wounded. (This estimate may be wrong to the extent of a couple of hundred, but that does not matter.) During this time the wounded were fed.
Click Me!
Look at Me!