Tape
Tape T apes is linear distance measuring instrument. Tapes are made of many materials and have the advantage of being light weight and providing greater precision. They cannot stand very rough handling as can chains. They can be divided into four classes according to the materials of which they made, such as follows: Cloth or linen tape Metallic tape Steel tape Invar tape Cloth or linen Tape: Tape made of cloth or linen can be termed as the cloth or linen tape. Generally this type of tapes used for the offset measurements. Due to their tendency to stretch easily, twist, and shrink when wet it is not used for the other measurements of high precision required. cloth tapes are available in lengths of 10m, 20m, 25m, 30m (10m to 30m) and in feet; 33ft., 50ft., 66ft., 100ft. One end of the tape is provided with small brass ring whose length is included in the total length of the tape. Metallic Tape: Metallic tape is made up of metallic wire provided with metallic ring. Since metallic ...