Always see during winter time old lady with difficulty dragged through the snow their shopping carts with products, and wheel trucks get stuck in the snow.
I propose by analogy with the runners for baby carriages made of metal of area a small slider, and to them fastened a tin box that tightly would include truck wheel. Length of slider — 200 mm below the removed they were placed at the bottom of the cart bag.
Recommend to read
FROM PROTOTYPE TO COPY
Our journal № 8, 1977 published drawings and gave recommendations for the production and painting of body, interior cockpit and chassis system of the minibus RAF-2203, produced by the...
IN THE CLOUDLESS SKY OF SPAIN
The fighter I-16 in the civil war of Spain. The history of the airplane. This plane was largely first. In the USSR, he was the first popular fighter with retractable landing gear, the...
