Self tightening knot. Tourist tips

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Self tightening knot. Tourist tips

Tourist tips

Of all primitive knots self-tightening knot, perhaps the most original, which is called “it couldn’t be simpler.” A thrust commensurate with the strength of the cable can be applied to the root part of the cable of this unit, and it will hold securely. The greater the thrust, the more strongly the free running end is pressed by the hose, and the knot tightens itself.

This is essentially the simplest form noises (See Fig. 65).

Rice. 44. Self-tightening knot

This unit should be used with great care. Always remember that it is only secure when it is tied around a log and constant force is applied to the root end. If this force is applied to the cable alternately, as if in jerks, then the running end may slip out from under the root end of the cable.

It makes sense to use a self-tightening knot in cases where the load suspended from the root end is motionless and the direction of thrust to this end does not change.

This unit is convenient for hanging bags of grain or cereal on a crossbar in warehouses to save them from rodents. By releasing the running end of the cable, the suspended bag can be smoothly lowered to the ground or warehouse floor.

Author: Skryagin L.N.

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Semi-rugged laptop Panasonic Toughbook CF-54 20.02.2015

Panasonic has introduced a new semi-rugged laptop Toughbook CF-54. The model was developed specifically for the automotive industry, including for diagnostics, repair and after-sales service of vehicles.

The CF-54 is the thinnest and lightest semi-rugged Toughbook. Its key features include a modular system and a host of additional features that allow users to configure the device to suit their work needs, the company said. The 5th generation i5300-3U vPro processor (2,3MB cache, 2,9GHz to 7GHz with Turbo Boost technology) delivers optimized performance and graphics, as well as reduced power consumption. If necessary, the client can order a model with an even more powerful Core i54 vPro processor. The CF-8.1 is running Windows 7 Pro Update, but due to downgrade rights, the customer can get a Windows XNUMX Professional device.

The 14-inch display provides high-definition and detailed images. HD (1366/768), Full HD (1920/1080) or Full HD capacitive multi-touch configurations are available on request. Optionally, the laptop can be equipped with an AMD FirePro M5100 discrete graphics card for even higher image quality.

"Slim design and extensive customization options combined with durability make the CF-54 a new standard in mobile technology. It will be especially sought after by automotive, field service, utility and telecom workers," said Jan Kämpfer, director of marketing at Panasonic Computer Product Solutions.

According to the company, the Toughbook CF-54 is highly durable and can withstand drops from a height of up to 76 cm. The magnesium alloy case, moisture-resistant screen and keyboard, and a hard-framed lid provide the laptop with adequate protection from external influences. For ease of transportation, a special handle is built into the case, on which the company logo can be engraved.

Another important aspect is the duration of the laptop without recharging. One battery installed in the CF-54 lasts up to 11 hours. The hot-swap option allows you to change the battery without turning off the laptop, and adding an additional battery increases the operating time to 18 hours.

The presence of various types of connection in a laptop is of particular importance to mobile workers, Panasonic said. Thus, the Toughbook CF-54 has a wide range of interfaces, including standard LAN, VGA and HDMI ports for video projectors, printers and screens, True Serial port for connecting to legacy systems, USB 3.0 and 2.0 ports and an SD card slot. Wireless LAN adapter compatible with "a", "b", "g", "n", "ac" standards and supporting data transfer rate up to 866 Mbps, and Bluetooth v4.0 provide fast file transfer. The portable computer comes with an adapter for charging from the car's on-board network or a mount on the dashboard. The 4G LTE module, Dual Pass antenna, contactless smart card reader and fingerprint reader are optionally available (only a contactless smart card reader or only a fingerprint reader can be installed, the company explained).

Thanks to its modular design, the CF-54 offers a wide range of configurations compared to other Panasonic semi-rugged devices. At the request of the client, the laptop can be equipped with a DVD drive, an additional battery, a PC card slot, a USB port or a smart card reader. The additional configuration port can be used for a second LAN adapter, a secure USB port, a GPS receiver, or a fourth USB 2.0 port.

The HD display model comes with a 500 GB hard drive, the Full HD model (with and without touchscreen) has a 128 GB SSD. An optional 2 megapixel webcam ensures video communication in any environment. A backlit keyboard is provided for working in the dark.

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