In construction you often have to deal with the internal measurements. For example, to determine the distance between the form panels, the value of the window or doorway. A good assistant in such cases would be sliding ruler, made of tube and metal rod with applied risk. V. ANTIPIN
Recommend to read
“ETERNAL” CUFF
The weak point of any piston pump — automobile, motorcycle or Bicycle, as is well known, piston, or rather, leather cuff, and the main fault is a loose fit it to the cylinder walls. The...
DYNAMICS — SECOND LIFE
Popular in the electronic literature was repeatedly highlighted by various fixing methods to the dynamic head (DG). Unfortunately, they all have some significant drawbacks. For...
