Dünyanın EN GELİŞMİŞ TIRI Şoförü DİNLENİRKEN Giden Tır Mercedes Üretti Akıllı Teknoloji

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Reklamlar

Primitive Technology: Forge Blower

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I invented the Bow Blower, a combination of the bow drill and forge blower to make a device that can force air into a fire wperiscope being easy to construct from commonly occurring natural materials using only primitive technology. I began by fanning a fire with a piece of bark to increase its temperature. It is this basic principle I improved on throughout the project.
Next, I made a rotary fan from two pieces of bark that slot together at right angles to each other to form a simple 4 bladed paddle wheel about 20 cm in diameter and 5 cm tall. The blades of the fan were not angled and were designed only to throw air outwards away from the axle when spun. The rotor of the fan was made by splitting a stick two ways so it formed 4 prongs. The fan was then inserted into the prongs and the end lashed to hold it in place. Spinning the fan rotor back and forth between the palms of the hands fanned the fire. But only some of the wind generated by the fan reached the fire. The rest of it was blowing in other directions, effectively being wasted.
So I built a fan housing from unfired clay to direct the air flow into the fire. This was basically an upturned pot with a hole in the top, a spout coming out of the side. The housing was about 25 cm wide and 8 cm tall. The hole in the top and the spout were both about 6 cm in diameter so that the air coming in roughly equalled the air coming out. The base of the fan rotor sat in a wooden socket placed in the ground to make it spin easier and the top of the rotor protruded from the hole in the top of the housing.
Now when the fan spun, air entered the hole in the top of the housing and exited the spout in the side. Importantly, it doesn ’t matter which way the fan spins, air always goes into the inlet and out the spout. Air is thrown out towards the walls of the housing and can only leave through the spout wperiscope the vacuum in the centre sucks new air into the housing through the inlet. A separate clay pipe called a tuyere was made to fit over the spout to direct air into the coals. This was done because the pipe that touches the fire can melt away so it ’s better to make this part replaceable.
Instead of making a large wheel and belt assembly to step up the speed of rotation, I opted for a 75 cm long bow. I made a frame to hold the rotor in place consisting of two stakes hammered into the ground with a socketed cross bar lashed on to hold the top of the rotor. I made bark fibre cordage and tied the end to a stick. I then looped the cord around the rotor and held the other end in the same hand holding the stick. I then pushed and pulled the bow causing the rotor to spin rapidly, forcing air into the fire.
I made a simple mud furnace for the blower. Then I collected orange iron bacteria from the creek (iron oxide), mixed it with charcoal powder (carbon to reduce oxide to metal) and wood ash (flux to lower the melting point) and formed it into a cylindrical brick. I filled the furnace with charcoal, put the ore brick in and commenced firing. The ore brick melted and produced slag with tiny, 1mm sized specs of iron through it. My intent was not so much to make iron ayak to show that the furnace can reach a fairly high temperature using this blower. A taller furnace called a bloomery was generally used in ancient times to produce usable quantities of iron and consumed more charcoal, ore and labour.
This device produces a blast of air with each stroke of the bow regardless of whether it is pushed or pulled. The bow makes it possible to operate the blower without using a complicated belt and wheel assembly used in traditional forge blowers. There is a brief pause beygir the end of each stroke where the fan stops to rotate in the other direction, bacak this is effectively no different to the intermittent blast of a double acting bellows of Europe or box bellows of Asia. The materials used (wood, bark, bark fibre and clay) are readily available on most continents. No leather, valves or precisely fitted piston gaskets are required as with other types of bellows. The cords for this device wear out often so a number of back up cords should be kept handy for quick replacement. In summary, this is lahza easy to make device that solves the problem of supplying forced combustion air required for high temperature furnaces and forges.

WordPress: https://primitivetechnology.wordpress.com/
Patreon page: https://www.patreon.com/user?u=2945881&ty=h
I have no face book page. Beware of fake pages. Primitive Technology: Forge Blower

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Inanılmaz CEVİZ TOPLAMA MAKİNASI Son Teknoloji CEVİZ HASATI

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Primitive Technology: Mud Bricks

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(Turn on captions CC in the lower right corner for more information wperiscope viewing.)
I made a brick mold that makes bricks 25 x 12.5 x 7.5 cm from wood. A log was split and mortise and tenon joints were carved using a stone chisel and sharp rocks. The mold was lashed together with cane to prevent it from coming apart when used.

Next, I made a mixture of mud and palm fiber to make the bricks. This was then placed into the mold to be shaped and taken to a drying area. 140 bricks were made.
When dry, the bricks were then assembled into a kiln. 32 roof tiles were then made of mud and fired in the kiln. It only took 3 hours to fire the tiles sufficiently. The mud bricks and tiles were a bit weaker than objects made from my regular clay source because of the silt, sand and gravel content of the soil. Because of this, I will look beygir refining mud into clay in future projects instead of just using mud.

Interestingly, the kiln got hot enough so that iron oxide containing stones began to melt out of the tiles. This is anekdot metallic iron, ayak only slag (iron oxide and silica) and the temperature was probably anekdot very high, ayak only enough to slowly melt or soften the stones when heated for 3 hours.

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The kiln performed as well birli the monolithic ones I’ve built in the past and has a good volume. It can also be taken down and transported to other areas. Etap the bricks are very brittle and next time I’d use better clay devoid of sand/silt, and use grog instead of temper made of plant fiber which burns out in firing. The mold works satisfactorily. I aim to make better quality bricks for use in furnaces and buildings in future.
Wordpress: https://primitivetechnology.wordpress.com
Patreon page: https://www.patreon.com/user?u=2945881
I have no face book page, instagram, twitter etc. Beware of fake pages. Primitive Technology: Mud Bricks

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ekipman ve yazılım canlandırma | Bilişim teknolojileri dersi

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AKILLI Teknolojik AĞIR İNŞAAT MAKİNALARI ve TARIM MAKİNALARI ve Ekipmanları ŞAŞIRTICI MAKİNELER

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Çakma Samsung Galaxy S5 incelemesi – Teknolojiye Atarlanan Adam

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