Rationalization proposal Lyubertsy student of secondary school № 42 of Konstantin Shishkin. If you need to turn on a lathe a few identical parts rather complicated configuration, it makes sense to use a universal strap-holder which can be mounted a set of cutters. It is made very simply is a steel bar with a groove in which is invested cutters. In the holder they are fixed by bolt. To change the distance between the incisors allows a set of replacement crackers. The use of this device in a school workshop allowed us to reduce labor costs and increase accuracy of manufacturing of a number of parts.
Recommend to read
WING — ON THE RISE
The peculiarity of the proposed model rocket class "Hawk" — the displacement of the wing at takeoff. As this increases the area of the tail section, shifting the center of pressure of...
MASCHLANKA
As the camouflage makes the scout invisible on the ground, so maschlanka hide from the eyes of the rough risers of steam heating, giving the room or the kitchen a more cozy feel. Hide so...
