When the father works in the barn, the door often slams shut from the wind. To avoid this, he inserts it under the shovel which breaks down a lot. I offered to make a turn. Attached it to the doorframe when the door is opened the turntable rotates and locks the door.
G. POTAPOV, Arkhangelsk
Recommend to read
BIKE “ON THE CONTRARY”? The VELOMOBILE!
In the journal "modelist-Konstruktor" No. 4'2003 was a good publication about the interesting developments of the members of the club of Tambov veloturistov: different models for every...
ON THE ROAD, THE ELECTRIC CAR!
Imagine: around the entrance waiting for us miniature car a nice modern shape. Let's do a small trip. The door swings open, as usual, and gently rolled back, releasing a wide opening for...