“PRESS” FOR TUBE

This simple device facilitates the use of any tube, helping to squeeze it evenly and gently. It consists of a base in a hole which is inserted the tube, and turning a key with slit for exciting a planar end of the tube. The base and key are made of wooden bars of appropriate dimensions. Their interaction is clear from the figure.

Recommend to read

  • AN EXAMPLE TO FOLLOWAN EXAMPLE TO FOLLOW
    Unlike analog, in the boat "Victoria" from St. Petersburg to create an air cushion and propulsive forces (thrust) uses an air screw. This allows the machine to move using both static and...
  • MULTI-SPEED FLOATMATHMULTI-SPEED FLOATMATH
    On our market there are now a lot of imported bikes with a large (over a dozen) number of speeds. But fascinating these machines are, perhaps, only youths. Experts understand that to...