Very often, the spokes of the umbrella over the plastic lugs which may fall, break, and the needle exposed, and the fabric is lifted up. Because the tip will not stick together, the rescue wearing instead spoke plastic sleeve (insulation). In the sleeve is screwed a suitable nut to which said loop tensioning of the fabric. N. SMOLIN, Chelyabinsk
Recommend to read
AQUAPLANE? NO, SNOWPLANE
These sleds, perhaps, the most simple design, gather them literally in half an hour. For the manufacture of snegopada will need straight grained boards 30 mm thick (200X1200); two strips...
FROM THE “UNDERWATER FROG” TO THE SUBMARINES-“DINOSAURS”
As we have seen, the "underwater thing" in France during the time of Napoleon special did not develop, despite quite a rich flow of suggestions, starting with Robert Fulton. However,...
