All cyclists know how uncomfortable to pump up the tire pump that comes with the bike. To facilitate this task, I from aluminum bar machined to the console, which allows during operation to install the pump vertically. In the transport position, the pump together with the prefix is fixed on the frame. R. SHAMSUTDINOV, Naberezhnye Chelny
Recommend to read
THE SOLENOID
So, you are already familiar with the electromagnet, knows how to work the buzzer and electric bell (see "M-K" No. 8 this year). But there is a large group of Electromechanical devices,...
“CHUK AND GEK” — SNOWMOBILE
On the shelves of sports stores you can often see elegant double sledge for skiing the mountains, called "Chuk and GEK". The sleds solidly constructed, brightly colored, very attractive...
