Probably every person has an idea of what an Anchor SVG is, and those who are seriously fond of sea transport, will be able to easily tell about the varieties and features of anchors of all kinds. Anchor SVG is an essential part of the ship: it is the anchor that ensures the safety of the ship and the safety of passengers. Today we will talk about the types of anchors. Here you can learn about the types of marine anchors for ships.
Anchor SVG history
Before going into the maze of Anchor SVG classification and review of their construction, it would be a good start to understand why an anchor is needed in principle? The answer is quite simple: the anchor is designed to ensure that the vessel is anchored at stable docking points and in the high seas at accessible depths. But that’s not all: the anchorage device is also indispensable during mooring in extremely adverse weather conditions, such as storms. The anchor appeared in the form we imagine it in the distant East A.D. Pliny attributes the invention of the anchor to the Greek Eulampyus, and others say that it was invented by King Midas. In ancient times anchors were made of wood. The wooden body of the anchor – a spindle was inserted into the middle of a wooden crossbar – a rod, along the entire length of which the hole was burned with hot metal and filled with lead. Sometimes an iron horn was made at the end of the rod, also filled with lead. Later, the second horn at anchor and triangular arrow-shaped overlays on horns – paws – were introduced (probably by Pliny or philosopher Anaharsis).
The rod was needed so that the anchor horns did not lie on the bottom too horizontally. The Romans made it out of an alloy of lead and antimony and then fixed it on a spindle by means of two rectangular apertures. Such an anchor was found in Lake Nemi. Nowadays we know a lot of similar rods. It is assumed that anchors of a similar type were used for quite a long time. With the development of iron melting technique, the anchor begins to make iron, although the rods could be metal or wooden. At both ends of the spindles these anchors had fish on them. The purpose of the lower fish has not been found yet, and it is believed that it served to anchor the anchor at the side. An anchor was found on Lake Nemi, which was made entirely of iron and its stem was mobile, as on later Admiralty anchors.
In the Middle Ages only iron anchors with wooden rods were produced. Looking at the images on the miniatures of ancient manuscripts, coins, seals and paintings, we can confidently say that almost until the XVIII century. form of anchors did not change. There were only minor changes in the technique of their production. In the 14th century a four-horned anchor appeared, which, however, was not very suitable for large vessels. Such anchors were used mainly on galleys.
After forging, the section of the spindle acquired almost rectangular shape with rounded edges. The top of the spindle, equal to 1/16 of its length, had a square section. This part – the shame – was used to secure the stem, so there were projections on both sides – shoulders – or nuts on which the stem lay.
There was a hole in the shampoo – the ear through which the fish were passed. The legs at the Anchor SVG had the form of an isosceles triangle: the sides were approximately 1/3 longer than the base of the Stock made of two oak bars, which were put on the sheima and fastened by four or six iron rope towers, put on the bars in a hot state.
There were anchors with curved horns, which were mainly used on merchant ships, but the most common were anchors with straight horns. They were in service with military vessels until 1820. Later, they were abandoned due to frequent accidents of ships that occurred during their use. By the beginning of the 19th century, the first studies were carried out, which led to significant changes in the design of traditional anchors. The most important of them were the appearance of a movable rod, then rotating horns, and rejection of the rod. In addition, steel castings were used to manufacture anchors. In 1830, Lieutenant Roger of the English Navy, after years of research and experimentation, proposed a new design of the Anchor SVG, which began to be named after him. Roger’s anchor, which was used until recently, can be distinguished from others by the presence of an iron rod with a square hole in the middle. The spindle was put on the spindle shade with this hole and then splinted. In order to remove the rod, it was necessary to remove the fish, so it was later replaced by a bracket. The rod could also be made of wood.