Jean Widmer Jema Steiner machine for dynamically balancing balance wheels
A used Jean Widmer Jema Steiner machine for dynamically balancing balance wheels
Airpump manual for rotation balance wheel
Adjustable vibration for friction reduction
Microscope with lamp and projection
Micrometer for drilling depth
made in Courtelary (Suisse)
Text from internet: The manufactured balance is placed on the measuring lever. By pressing the hand pumpas, air is supplied to the movable nozzle and leads to a balance rotation. When the balance comes to a state of rest, unbalance becomes visible and the heavier part under gravity displace down. If you press the lever, the vibrator unit turns on and this improves the measurement procedure. The next step is to determine the bolt to be lightened. After that, a little material is drilled from the bolt cap. The apparatus is equipped by a drill spindle with a collet, into which a drill with a diameter of 0.4 mm or 0.35mm is clamped. The diameter of the drill is limited by a brooch. The depth of drilling is shown on the measuring clock a scale. In this way, an accurate balancing of the balance is possible. The setting and the adjustment of the apparatus is very diverse. For example, you can precisely adjust the position of the drill to the arrow of the measuring device. All important parts are equipped with the ball bearings or the bearings with rubies, thereby minimizing the effect of gravity on the indicator. Using a beam of light, the black silhouette of the balance is projected onto a small screen. Before the work the device must be scrupulously leveled. This is done with a help the legs, using the level, since there is no built-in one. The parts of the device are made of aluminum and brass. These metals have not magnetism, which hinders for the measurement process.