Jean Widmer-Steiner

Brevets Swiss & étrangers
Courtelary (Suisse)

I know two types of this device. The device type I is designed to equilibration the screw balance, which is drilled vertically. On type II, the balance rim can be drilled along with the axle.

These two devices, of course, replace a simple balance scales.

I know little about Gene Widmer-Steiner. He was a Swiss engineer. In November 1949, he received a patent in the United States for a shock protection. Apparatus appeared somewhere in the 50th years of the last century.

Type I

Jean Widmer-Steiner, overall view

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.

Jean Widmer-Steiner, balance

If you press the lever, the vibrator unit turns on and this improves the measurement procedure.

Jean Widmer-Steiner, balancing

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 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.

Jean Widmer-Steiner, setting and adjustment

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. This is an interesting addition to the clock loupe, which is always at hand.

Jean Widmer-Steiner, projecting magnifying system of balance

How this device functions, I found by experimenting myself.

Jean Widmer-Steiner, overall view

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.

Jean Widmer-Steiner, spindle

On the devices manufactured later, the places with wear and tear were replaced with rubies.

Jean Widmer-Steiner, view from below

The parts of the device are made of aluminum and brass. These metals have not magnetism, which hinders for the measurement process.

Type II

Jean Widmer-Steiner, overall view

On this machine you can work as well as on type I. Of course, the vibrating device is permanently on and it can not be turned off.

Jean Widmer-Steiner, overall view

Instead of two there is only one air nozzle, which is also almost unregulated. The air pump in this device is also not provided, and then a medical pear is needed.

Jean Widmer-Steiner

The machine is equipped with a drill spindle with 6 mm collets, into which a drill of any size is clamped.

Jean Widmer-Steiner

The depth of the drill can be adjusted with a limiting bolt, but there is no indicator for this.

Jean Widmer-Steiner

When drilling, you must simultaneously control two levers. The first lever the return brooch is lead to the balance hoop and simultaneously is turn the motor on. By the second lever is drilled.

Jean Widmer-Steiner

Also, the device needs to be adjusted and put under a certain balance.

Jean Widmer-Steiner

As an auxiliary optics, swiss designers came up with a prism with a lens. Everything is clearly visible in a increased size. In addition, you can also work with a clock magnifier. For convenience, the prism can be removed.

Jean Widmer-Steiner

However, many nodes are the same as those of type I.

Jean Widmer-Steiner

The balance with a maximum diameter of 23 mm is inserted into the measuring lever. But if you really need it, then, making a some effort, you can put a balance with a diameter of 45 mm.

Jean Widmer-Steiner Jean Widmer-Steiner Jean Widmer-Steiner