Not find, perhaps, a car or complicated mechanism which isn’t used ball bearings: they are embedded in devices and engines, airplanes, and tractors, bringing accuracy, reliability and durability. And suddenly — an unexpected metamorphosis: the ball turned into the destroyer, has become a cutting tool. The device, manufactured on its basis, can be used for cutting writing and photographic paper. BARREL-FACTORY
Read No. 5 of 1883 article “do Concrete yourself” with the drawings mixers and remembered how himself had to be built. We used a more simple device, which is produced in one day. Took two hundred liter metal barrel cut in it the hatch lid with rubber seal, missed through the bottom of the pipe-axis Read more…
This simple device will allow, if necessary, to obtain the desired rivet diameter and length. Steel angles from rolled steel clamped in a vise, with the line connector mark and drill holes of the required depth and diameter. Now, loosening the grip, inserted into the hole of the workpiece is of soft wire, the diameter of which corresponds to the desired size of rivet. The device is again clamped in the vise, and workpiece clench; the excess head is removed with a file.
Whether the house the garbage disposal if there is still an intermediary is usually a bucket that have, as a rule, in the bedside sink. However, and sheltered thus, it is preferable to isolate any cover. But this complicates the use of: every time not only to open the door, but also to lift the lid.
