SE466033B - VISA DEVICE MAKES ON THE EARTH POINT OUT AN OBJECTABLE EXISTING GOODS SUCH AS THE SUN, MOON, PLANETS AND CERTAIN SATELLITES - Google Patents

Description

"466 055 objects in the sky with the pointer according to the invention, you need the following information: 1 Your own latitude on earth. 2 The longitude difference from your time zone. 3. North / south direction. 4. Date of the year and time of day. 5. The position of the object in question, ie. RA and the declension are abbreviated Decl. These two data can be obtained from tables specially developed for the use of the invention, which indicate the position in the sky of the objects (sun, moon, planets and satellites) at the time 0 Greenwich time at different dates for certain years. The sun and the moon move fast, which is why the position for each date is stated, while for slow planets the position is stated with intervals between dates.

The tables are designed so that the positions of the individual objects are given with time differences, which eliminates the need for interpolation (with the exception of the moon). For the use of the above information, the invention has obtained the features stated in the appended claims.

An embodiment of the invention is described in the following with reference to the accompanying drawing figures. Figure 1 then shows a perspective view of the display device.

Figure 2 shows concentric scales for R.A. and date / time. Figure 3 shows the device viewed from below. * The pointing device consists of a plate 1, with two fixed legs 2, 3 f and a leg frame pivotable at the plate 4. The angle of the leg position towards the plate is regulated with a slide 5 attached to the plate and adjustable to be fixed at V6 466 053 leg position 4. The slide has a latitude scale of 6 in degrees from 0 ° to 70 °. Rotatable on the plate 1 is a longitudinal disc 7 and a date / RA disc 8 as well as a time disc 9. The discs are rotatable about the same center relative to the plate 1.

On the time plate 9, a 180 ° semicircular disk 10 with a degree scale 11 is set up perpendicularly. The scale is graded from + 90 ° to -90 °, 0 ° being placed on the normal through the center of rotation 14 of the disks. In the center of the circular disk 10 and the protractor 11, a pointer arrow 12 is rotatably mounted for rotation in the plane of the circular disk 10. When a mark 13 on the pointer arrow 12 points towards 0 ° on the degree scale 11, the pointer arrow is perpendicular to the normal through the center of rotation 14 of the discs and lies in the plane of the circular disc.

The longitudinal disc 7, which can be rotated relative to the plate 1, is adjusted relative thereto by means of a circular scale 15 placed on the underside of the longitudinal disc 7, called the "difference to the time zone" and is graded from minus 3 hours to plus 3 hours with 10-minute intervals between scale lines. A window 16 is accommodated in plate 1 for reading against the scale. The set rotation position between the plate 1 and the longitudinal disc can be fixed by means of a screw. The position of the plate in the north-south direction is determined by means of the arrow 18, which thus when the device is set up in place in the northern hemisphere, should point to the south.

Setting up the pointer Turn the planet pointer upside down so that you can see scales and such from below, see Fig. 3. There you will find the scale 6 for the latitude and the scale 15, 16 "the difference from the time zone" and you continue with the following measures to get the pointer to operate from a certain position on earth. 10 15 20 25 30 35 466 us # Adjusting the longitude.

The world is divided into time zones and this gives problems when trying to find an object in the sky, so e.g. the sun and the stars rise in Boston 1 hour before they do so in the Indiana police, even though the clocks show the same time in both places.

To cope with this problem, the pointer can offer a built-in correction for the longitude you are at.

It also provides a correction for summer time.

You find the longitude of the place you are at by looking at a map or otherwise finding out.

Then you determine the difference in degrees between the longitude you are at and the standard longitude for the time zone where you are. In North America, the standard time zone longitudes are 75 ° for the east coast, 90 ° for the central region, 105 ° for the mountain region and 12Û ° for the Pacific coast. In Western Europe, the standard time zone is 0 ° for the Greenwich Mean Time and -15 ° for the Central European Time.

For each degree located west (east of southern latitudes) about the standard longitude, the scale 15, 16 for the "difference from the time zone" shall be set (+) 4 minutes. If you are east (west of southern latitudes), the scale should be set baked (-) 4 minutes. This setting is made by turning the disc 8 relative to the plate 1 and setting the correct part of an hour + or - in the window 16. 'hH The following example applies: Portland Maine is located at 70 ° longitude which is 5 ° west of the standard longitude of its time zone . So for Portland it is important to set the difference from In the time zone in the window to -20 minutes (-5 x 4 = -20). When summer time is available, ie when the clocks are made one hour, an hour must be added to the setting for the difference from the time zone. The correction for Portland will then be +40 minutes. When normal time returns, the scale is set back one hour.

Adjusting the latitude.

First you have to determine the latitude where the device is set up and this can be found in tables or you use a map. The adjustment of the latitude is done by carefully folding the legs 2, 3 and 4 for the pointer until its correct latitude is shown on the scale 6. The slide 5 must then pass through a slot in the leg 4. The two legs and the slide 5 must then form a triangle. The latitude scale 6 works for both northern (+) and southern (-) latitudes.

Instructions for the Northern Hemisphere only, Check that the "Northern Hemisphere" (NHem) appears in the cut-out window 20 on the disc 9 and just above it. If not, disassemble the device and turn the disc 9 and / or the disc 8.

Next, the hemisphere window 21 on the declination disk 10 should show "NHem". If the loosening disc screw does not loosen, turn the arrow arrow 180 ° and put the screw back in first through one of the declination discs, then through the pointer arrow, and finally through the other declination half-disc.

Sample Set the latitude scale to 40 °, the difference from the time zone scale ie. scale 15, 16 at 0 °, RA scale 25 against RA indicator 24 to Qh, and time scale 22 to "MIDNIGHT" against date scale 23 to February 5. For this see later instructions for 10 15 20 25 30 '466 055 6 use . The cursor arrow should now point to zenith, ie. the point directly above the place where you are. nstä lnin ö only the southern half of the sheep Loosen the north arrow 26. It is fixed by means of a piece of double tape. Turn the pointer side up on the legs (stand) and attach the north arrow above the south arrow 18 on the latitude band.

The north arrow shall then cover the south arrow.

Check that the Southern Hemisphere (SHem) is displayed in the tracked window 20 and also just below it. If not loosen the center retaining screw, turn the disc 9 and / or the date / time disc 8 up and down until SHem is visible in both places.

After this, the window 21 on the declination disc 10 should show SHem, if not loosen and turn the pointer 12 180 °.

Sample Set the latitude scale 6 to 40 °, the scale 15 ,, 16 to the 0, RA scale to Qh, and February 5 towards midnight on the date and time- For this design see the following instructions for use. the scales. Also set the declination scale to -40 °.

The pointer arrow should now point towards the zenith, vertically upwards.

Function of the device First it must be checked that the hand, ie the entire device with stand and hands, is set to the correct latitude and the correct "difference from the time zone". f 10 15 20 25 30 7 * 466 035 To set the pointer arrow to the desired object, proceed as follows. Arrow 18 is oriented in a north-south direction with the south arrow facing south of the northern hemisphere.

The opposite is true when you are in the southern hemisphere when the northern arrow is to face north. The north-south direction can be determined with the help of a compass e.g. It is also important that the entire stand is on a horizontal plane. Set time against date, and RA against the RA indicator. Do not confuse the RA scale with the time scale. They are both denoted in hours and minutes.

Set the declination of the object on the declination scale 11.

Hereafter, the pointer arrow should point to the object in question. To view a new object, return to the time / date setting action. After a period of practice, it should not be a problem to aim for the pointer arrow to find objects in the sky for which data is given.

Example 1: Where can the constellation Orion be found in Boston on January 25 at 9 p.m., Eastern Standard Time? 1. From the table you can find that Boston is at latitude + 42 ° and longitude + 71 °. The device is therefore set on the latitude scale of 42 ° and the scale for the difference from the time zone of -16 minutes. The latter due to the fact that Boston is located 4 ° east of the eastern standard time: -4 x +4 = 16. 10 466 us 9 Next, the pointer device is aligned in a north-south direction with the arrow 18 facing south, see the previous one. Because this is an example, action 2 is not necessary.

The position position of the constellation Orion is set by retrieving data in tables of the type initially described. It is found that R.A. is 5 hours 35 minutes and the declination is 0 °.

First, set 5 hours 35 minutes on the RA scale. Since the time 9 pm on the time scale towards January 25 on the date scale. Then the declination is set to 0 ° on the declination scale, see figure 5. The pointer arrow will now point south quite high above the horizon where Orion can be found.

Claims (3)

Q 466 035 PATENT CLAIMS A pointing device for pointing out on the ground an object in the celestial sphere, such as the sun, the moon, planets and certain satellites, characterized in that a point (12) is arranged to be tiltable on a set up plate (1) in a plane perpendicular towards the plate and is rotatable in the plane of the plate (1), that the tilting position is indicated in degrees of inclination relative to the plane (1) and the rotation position is indicated in a date and time scale relative to a movable disk (8) rotatable on the plate, whose center of rotation coincides with the center of rotation of the pointer (12), that the position of rotation of the disc (8) relative to the plate (I) is determined by a time scale calculated on the difference in longitude between the location of the pointer and the standard time zone of the location in question, that the plate (1) has a leg position (2, 3, 4), which allows the angular position of the plate relative to the horizontal plane to be set and read on a graduated scale, an arrow on the device always pointing in the direction of inclination to orient it towards the north of the earth. south pole, and the date / time scale has a circumferential scale on the disk (8), which is graded around from 0 to 24 hours at ten minute intervals, and which can be set to a fixed point on the plate (1), wherein, for the latter the setting, data, named "R.Af ', is taken from a table indicating this data for the object in question at kl. 0000 Greenwich time, at the time of use of the device and that in the same way the object's data for the declination is produced, which later data was used for the orientation of the pointer relative to the plate (1). A pointer anode according to claim 1, characterized in that the date / time scale is located, in addition to the movable disk (8), on a rotatable base disk (9), the latter being concentrically rotatably arranged on the disk (8) and having the time scale located around the circumference graded for 24 hours - 466 us ”and whereby the moving disk (8) has the date scale placed around its circumference divided into 12 months and the number of days in each month, and the scales are legible against each other by the time scale being concentrically within the date scale. m. 3. A pointing device according to claim 2, characterized in that the washer (9) supports the hand (12) in a rotationally fixed manner via a hinge shaft located parallel to the isher (9).