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
“Teremok” garden house
SUCH GARDEN HOUSES ARE POPULAR AMONG AMATEUR GARDENERS: THEY ARE SIMPLE AND AFFORDABLE TO BUILD; THE SET OF MATERIALS NEEDED FOR EACH IS QUITE CHEAP; BESIDES, SUCH A TWO-STORY COTTAGE HAS...
Cellar on balcony
"Not long ago, the chief engineer of one of the factories producing refrigerators, V. V. Ulyanovsky, called me. As it turned out, he was interested in the thermostat I built for storing...
