Using a wheelchair with a stick, faced with the problem of movement in ice. After several trials, it was decided to streamline the stick. In its bottom I drilled a series of blind holes with a pitch of about 5 mm. In need of them put an l-shaped rod, the lower end of which extends slightly beyond the rubber tip of the stick, which is also slotted slit. To keep the rod in the groove cut in the tip, helps the clip from the metal strip. Over time statusisa rod moves down hole. V. TROFIMOV, Saint-Petersburg
Recommend to read
BOAT-NETWORK
One of the main tasks of a designer in any vehicle is to make it easier. Of course, not at the expense of stiffness and strength. If to speak about building of small vessels, the...
WHERE THE ASPHALT ENDS
Readers of the older generation, of course, well remember during the last war. Autumn impassability of roads, forty-one, broken tracks and wheels, smeshannye thousands of feet, frontage...
