One of the problems of a pedal of a drive of the bike was and still remains the need to change torque to the driving wheel depending on road conditions. And I must say that the designers decide, but in many ways They even created planetary drive bushings, however they are complicated and therefore not cheap. So often on the rear wheel set of the multistage transmission with more asterisks and mechanisms for the transfer and payment chain length. This is the most waste and inexpensive option. But the number of stars (usually three. sometimes four) is sometimes not enough. Then to increase the number of “speeds” leading asterisk also make two – and even three-stage.
ASTERISK, ONE — SPEED, LOT
When conducting different kinds of work often have to use hand tool percussion: chisel, punch, jumper and others. To eliminate the negative impact response of the impact on a hard work surface, it seems appropriate to use anti-vibration device (Fig. 1, 2, 3) to which the thread mate replaceable shock elements. The figures shown docked replaceable chisel.
“No water and no amplitude, and no syudy…” This catch phrase from the pre-war Comedy “Volga-Volga” is very close and understandable to everyone who is associated with the earth, and the cottagers, and rural residents. Well, if the water system is missing or not working, and the summers are hot and dry, the problem of providing water is becoming a serious. Rescue — pump.
Sooner or later, in the drawers of your Desk, accumulates such a quantity of clippings from Newspapers, magazines, old brochures, notes that it is necessary to decide what to do with them next. There is of course, a radical method – to give it all back in and then put on the bookshelf. But this may not everywhere and not all. There are other, more simple variant: to lay down the clippings in folders with strap and remove the closed part of the Cabinet. Closed because these folders in the apartment don’t look very nice. But by putting them there, you lose these materials, which is not always desirable.
