Prism die tower or four pyramid die power line tower numbers

摘要

Topic In order as for the power line tower, those which are constructed to the mountaintop and the wilderness and Tabata etc of mountain zone are many, to manage these towers, number has been attached to all towers. Until recently, if in the tower number label of mode, there was the limit in size and did not go to immediately before the tower the numerical value could not be verified. For maintaining, when it goes to the tower of the mountaintop, verifies number because it is different, furthermore you must climb to another mountain, loss such that accompanied. Then, the number method of presentation which can verify tower number was necessary even from the rank storage space which is far far.SolutionsThis device by the fact that the paint it displays in the basis of the rule which displays fixed numerical value in the main pillar and the horizontal strut and the diagonal strut which form the tower, is the manner which can verify number from the position where it is far from the distance. Choice figure Drawing 5