Circular modernization. Drawing, description

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Circular modernization. Tips for the home master

Builder, home master

It is known that the standard diameter of a pencil lead and the inner diameter of the collet clamp for it at the compass do not correspond to each other: the rod has to be sharpened in order to be inserted. Even more hassle if a colored lead is required. Yes, and to rescue the rest of the pencil is also not an easy task: this can only be done with a needle or a knife.

Compasses modernization
Collet leg to the compass: 1 - collet, 2 - body, 3 - spring, 4 - pin

I suggest modernizing the compass, for which use an old collet pencil. Its clamping rod is cut at a distance of about 50 mm, a copper wire pin is inserted into the hole for rigidity. The rest is clear from the diagram below.

It would be nice if the industry began to produce such inserted legs for compasses.

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New small craft tracking technology 09.06.2014

The creator of the ship positioning system (AIS), exactEarth, announced the creation, together with the equipment manufacturer SRT Marine Technology (SRT), of a new ABSEA position monitoring system for small vessels and the launch of the exactAIS Trax service. In many ways, a revolutionary new product will help solve the problem of tracking millions of small vessels in the vast oceans.

Graham Stickler, vice president of exactEarth, said, “A huge number of small boats are now spending most of their time out of sight of shore services. With the help of the new ABSEA AIS devices and the exactAIS Trax service, it is possible to achieve high accuracy in determining the position of vessels. We believe that the new vessel traffic management system will provide a higher level of safety for all participants in maritime traffic."

The new system is based on ABSEA technology, which for the first time uses low-power transceivers for satellite monitoring. Small AIS transmitters do not require large power supplies, wired connections or any other vessel modifications.

The transceiver is battery powered and can work with existing AIS satellite constellation. An innovation is the exactAIS Trax service, which provides the possibility of global monitoring of any ships, regardless of their displacement and distance from AIS shore receivers.

In addition to ensuring maritime safety, the new exactEarth system will provide an unprecedented map of the global maritime transport system, updated in real time. In addition, the new generation of AIS can store a history of each ship's movements, making it easier to analyze the data it collects. This information can be useful for analytical geographic information systems used for scientific research, logistics, crime control or military affairs.

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