KR100301767B1 - Universal Clock From Which Longitude Can Be Determined - Google Patents

Abstract

PURPOSE: A world clock for measuring a longitude is provided to exactly and conveniently detect present time and a longitude of a specific position by inserting a bar into a hole. CONSTITUTION: A world clock for measuring a longitude comprises a bottom plate(1) indicating a relative position of a specific world city according to the longitude of the world city; a circular clock board(2) displaying graduation dividing 24 with a regular angle while rotating one time in a day; a level controller(3); two measuring bars(4) vertically installed on the bottom plate; a measuring hole formed on an upper portion of a clock case; a minute plate displaying minute by rotating one time in an hour; and a time reading line(7) formed on the clock case or a glass cover. Thereby, the world clock for measuring the longitude exactly and conveniently detects the time and the longitude of the specific city in a whole world.

Description

Universal Clock From Which Longitude Can Be Determined}

The present invention relates to a universal clock that can measure the hardness, and relates to a clock that can accurately grasp the hardness and local time of the place even in the unknown.

In some cases, you need to know where you are on the earth and what time it is at that time without any special measurement tools other than the clock. This is the case, for example, when the ship is wrecked in the ocean or fallen into the deep remote areas. At this time, the following method is known as a measurement. However, to apply this method, you must remember exactly the difference between your watch's time zone and Greenwich Mean Time.

First, simple protractors representing right angles, 45 °, and 22.5 ° are easy to make, so they are used to measure the angle between the horizon, the current point, and the North Star, the altitude of the North Star. If you are in the southern hemisphere, measure the altitude of the star that represents the celestial antarctic. The altitude of the North Pole at a point coincides with the north latitude of that point, and the altitude of the celestial antarctic coincides with the south latitude of the point so that the latitude of the point can be determined.

Next, the day and the time of day are measured using a clock to determine the length of the day, and half of the day is added to the time of sunrise to determine the south time of the sun. Converts the sun's southern time at that point to Greenwich Mean Time, and subtracts 12 hours from the sun's southernmost time at that location. Multiply this time value by 15 ° / hour to find the hardness of that point.

As mentioned above, the latitude, longitude, and local time of an unknown point can be determined by using a normal clock, but this method must accurately remember the difference between the region where the clock is set and Greenwich Mean Time. It is difficult to apply in that it cannot be measured accurately and involves complicated calculations, and in particular, there is a problem that cannot be utilized in an emergency.

The present invention has been made to solve the problems of the prior art as described above, to provide a universal clock of a new function that can easily know the hardness and local time of the unknown point without any additional operation or complicated calculations on the fly. do.

1 is a plan view and a sectional view of an example of a watch face combination according to the present invention;

2 is a plan view and a sectional view of still another example showing a combination of a watch face according to the present invention;

***** Explanation of Drawings *****

1. Bottom plate 2. Commercially available 3. Level

4. Measuring rod 5. Measuring hole 6. Separation

7. Visual Reading

In order to achieve the above object, the present invention includes a bottom plate (1) displaying the names, scales, and longitudes of major cities in the world on the circumference of which the date boundary lines are displayed at relative positions according to the hardness of the cities; One round every 24 hours, a round commercially available 2 having a 24-division scale marked at the same angle with respect to the center at its distal end; A horizontal system 3; It includes two measuring bars (4) installed perpendicular to the bottom plate 1 in the 0- o'clock and 6- o'clock directions near the inner center of the glass plate of the clock. To provide (FIG. 1).

In order to achieve the above object, the present invention also provides a watch having a measuring hole 5 formed in the 0-hour and 6-hour directions of the upper surface of the watch case instead of the measuring bar 4 of the watch. (FIG. 2).

In the above description, "0- o'clock direction" and "6-o'clock direction" refer to a direction indicated by a daily two-turn clock, which is not a direction indicated by the clock of the present invention. Used. In addition, in the present specification, 'clockwise' and 'counterclockwise' respectively mean the direction in which the clock hand rotates and the opposite direction in a conventional clock.

In the clock according to the present invention, a circular separator 6 may be added at a time of one hour, and a 12 division scale is displayed at the same angle with respect to the center.

The watch of the present invention is provided with a clock hand such as hour hand, minute hand, and second hand, and the clock plate is divided into 12 parts, so that the hour hand is rotated two times a day, the minute hand is 24 revolutions per hour, and the second hand is rotated once per minute. Unlike the usual clock that displays the clock hands, the watch hands are divided into 24 instead of rotating the clock (2) is rotated once a day, the hour of the specific time, divided into 12 divided display ( 6) shows one minute at a specific time while making one revolution per hour. The specific time can be known by reading the number on the commercial plate 1 and the number on the separation plate 6 corresponding to the time reading line 7 displayed on the watch case or the glass cover. At this time, the division lines divided into subdivisions as necessary may be displayed between the division marks to determine the minutes at a specific time only by the commercially available 2 or to accurately read the minutes.

Between each divisional display or divisional display of commercially available 2 of the present invention, a number from 0 to 24, or 0 to 12 can be displayed consecutively from 1 to 11, and 0 to 12 can be displayed to represent the afternoon. You can display 1 to 11 in different colors. It is also possible to instantly identify the area where the sun is dominant, ie noon, by marking the sun with a red dot instead of the number 12. The commercial 2 can be rotated continuously in an analog manner or rotated one space per hour in a digital manner. Each division display of the separation plate 6 of the present invention may indicate minutes by displaying numerals of 0, 10, 20, ..., 50 or numerals of 0, 15, 30, 45 for convenience.

The rotational direction of the commercial plate 2 and the separator 6 of the present invention can be arbitrarily determined. However, when each plate rotates counterclockwise, the order of the displayed number of hours and minutes is clockwise, and each plate rotates clockwise. If so, the display order of hours and minutes is shown in the counterclockwise direction. Therefore, in the present invention, the commercial plate 2 and the separator 6 of the clock may be rotated in the clockwise or counterclockwise direction at the same time, and the commercial plate 2 and the separator 6 may be rotated in opposite directions to each other. However, when the commercial plate 2 rotates counterclockwise, each city of the bottom plate 1 is located in the west and is arranged in the circumferential counterclockwise direction, and when the commercial plate 2 rotates clockwise, the west The city located at should be circumferentially clockwise.

The bottom plate 1 in the present invention may be fixed or may be rotated by an operation. When rotating, the bottom plate 1 is interlocked with the commercial plate 2 so as to be rotated at exactly the same angle (on the scale of the bottom plate 1). The minutes in the city are the same everywhere, so the separation plate 6 is not rotated separately).

In the watch of the present invention, the level gauge 3 is a device that allows the watch face to be adjusted in parallel with the horizon. It is preferable to apply the bubble level 3 to the watch face, and it may be located anywhere on the watch face. For convenience, it is better to be located in the center of the clock face.

In the watch of the present invention, the measuring rod 4 or the measuring hole 5 is used to accurately measure the north-south or east-west direction, one each in the 0-hour direction and the 6-hour direction at the center of the clock plate. If necessary, one may be additionally provided in the 3-hour and 9-hour directions, respectively.

In the present specification, only the shape structure and rotation speed of each plate, the position of the horizontal system 3, the position of the measurement bar 4 or the measurement hole 5 are described, but it is a general person skilled in the art to which the present invention belongs. By the description of the will be able to easily implement the watch of the present invention. The watch of the present invention may be made not only by a mechanical method by a combination of a driving device and a tooth having a specific rotation ratio, but also by a display device such as a liquid crystal or a monitor by an electronic method.

Hereinafter, a method of reading the longitude and local time of an unknown point from the clock of the present invention configured as described above will be described. For convenience of explanation, in the watch of the present invention, each plate rotates in a counterclockwise direction, and is arranged in the order of the bottom plate 1, the commercially available plate 2, the separation plate 6, and the level meter 3 from the outside. (4) is provided one each in the 0-, 3-, 6-, 9-hour direction of the outside of the horizontal system 3 (the display of the separation plate 6 is omitted in the figure).

First, the commercial plate 2 and the separation plate 6 are adjusted to adjust the current time of a specific city, for example, Seoul and Tokyo, to the Seoul and Tokyo scales of the bottom plate 1. In this state, the commercial plate 2 and the separation plate 6 each rotate at a predetermined rotational speed to display the current time of each city corresponding to the scale displayed on the bottom plate 1. Therefore, the watch user of the present invention can immediately check the current time of the major cities of the world without any manipulation. If the user moves from Seoul to Seattle in the United States, the local time of Seattle is the time indicated by the scale of the bottom plate 1 corresponding to Seattle, so there is no need to perform a separate operation. However, for visual convenience, it is possible to rotate the bottom plate 1 with the market 2 so that the scale corresponding to Seattle is in the 0-o'clock direction.

At the time of sunrise at the unknown point, the watch according to the present invention is placed horizontally using the level meter 3 and adjusted so that the shadows of the 3- and 9-hour direction measuring bars 4 are in a straight line. At this time, the 3- o'clock direction of the clock indicates an emotion, and the 9-hour direction indicates an emotion. On the other hand, when there is a measuring hole 5 instead of the measuring rod 4, a straight rod is inserted perpendicularly to the measuring hole 5 and used. In addition, when there is no 3-, 9-hour measuring bar 4 or measuring hole 5, two separate bars are used to determine emotion and emotion. Adjust toward emotion.

There is a point in time where the shadow of the straight bar inserted in the measuring bar 4 or the measuring hole 5 positioned in the 0-, 6-hour direction coincides with time at this position, and the sun is at that point. This culmination is at noon. Therefore, by reading the hardness corresponding to the scale of the bottom plate 1 at the position corresponding to 12 o'clock in the daytime, the hardness of the spot can be accurately known. In addition, the time of the point can be known from the number of the commercially available 2 corresponding to the hardness.

The watch of the present invention has a bottom plate (1) showing the names, scales, and longitudes of major cities in the world on the circumference of which the boundary of the date is indicated at a relative position according to the hardness of the city, and a commercial (2) which rotates once per 24 hours ( It consists of a time slot, a horizontal bar (3), and a hole into which a straight bar or straight bar can be inserted, which can be used as a universal clock, and also makes it possible to accurately and easily grasp the hardness and local time of an unknown point.

Claims (4)

In a clock in which the clock face rotates to display the time, A bottom plate 1 in which the names, scales, and longitudes of major cities of the world are displayed at relative positions according to the hardness of the cities on the circumference on which the date boundary lines are indicated; One round every 24 hours, and at the distal end, a commercially available round plate (2) marked with a 24-division scale at the same angle with respect to the center; Level system 3; And two measuring bars (4) mounted perpendicular to the bottom plate (1) in the 0- and 6-o'clock directions near the inner center of the glass plate of the field of view. Featuring clock. The method of claim 1, A clock, characterized in that it further comprises a circular separation plate (6), which rotates once per hour and has a 12 division scale marked at the same angle with respect to the center. In a clock in which the clock face rotates to display the time, A bottom plate 1 in which the names, scales, and longitudes of major cities of the world are displayed at relative positions according to the hardness of the cities on the circumference on which the date boundary lines are indicated; One round every 24 hours, and at the distal end, a commercially available round plate (2) marked with a 24-division scale at the same angle with respect to the center; And a horizontal gauge (3), wherein each of the plates rotates coaxially and has a measuring hole (5) formed in a zero-hour direction and a six-hour direction on the upper surface of the watch case, respectively. The method of claim 3, wherein A clock, characterized in that it further comprises a circular separation plate (6), which rotates once per hour and has a 12 division scale marked at the same angle with respect to the center.