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
ON THE EVE OF PEARL HARBOR
By the end of the First world war the Navy of the United States of America was large, but very strange composition: a significant linear force, the almost complete lack of any modern...
THE CREATORS OF “FIRE ARROWS” (PART 2)
Reactive BM-8-24. In August 1941, took arms 82-mm rocket M-8. It was a modification of the aviation RS-82 for use in the field artillery, which had almost twice the mass of the...
