
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
CHAIN — ANY
On the proposed technology of wire matching section can be manufactured in a variety of shapes and sizes of links. The circumferential wire on one, two or three metal bar clamped in a...
HOMESTEAD FARMER
Electrofresh is intended for soil (top soil) household and cottage (with electricity) sites, hilling potatoes. Considering the rather difficult conditions: long continuous work,...