DE295403C - - Google Patents
Info
- Publication number
- DE295403C DE295403C DENDAT295403D DE295403DA DE295403C DE 295403 C DE295403 C DE 295403C DE NDAT295403 D DENDAT295403 D DE NDAT295403D DE 295403D A DE295403D A DE 295403DA DE 295403 C DE295403 C DE 295403C
- Authority
- DE
- Germany
- Prior art keywords
- guide
- tripod
- adjusting screws
- triangle
- installation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000009434 installation Methods 0.000 claims description 8
- 238000006073 displacement reaction Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/20—Undercarriages with or without wheels
- F16M11/24—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Telescopes (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
Die Erfindung betrifft eine verbesserte Aufstellung für geodätische, astronomische und Meßinstrumente.The invention relates to an improved setup for geodetic, astronomical and Measuring instruments.
Die bisherigen Aufstellungen mit einfachen Dreifüßen haben den Fehler, daß der eingestellte Zielpunkt durch seitlichen Druck auf den Dreifuß bleibend aus seiner Lage verrückt werden kann. Die Verrückung ist meßbar. Dieser Fehler ist größer bei Instrumenten mit freier Aufstellung (Plattenaufstellung) als bei Instrumenten mit Aufstellung durch Federspannung (Stengelhackenbefestigung). Doch haftet der Fehler beiden Arten gleich störend an, weshalb die Vermessungsvorschriften dem Fehler dadurch begegnen, daß sie für satzweises Winkelmessen vorschreiben, daß das Instrument stets in gleichgerichtetem Sinne um seine Achse gedreht werden muß.The previous setups with simple tripods have the fault that the set Target point by lateral pressure on the tripod, staying out of position can be. The displacement is measurable. This error is greater for instruments with free installation (plate installation) than with instruments with spring tension installation (Stalk hoe attachment). But the error adheres equally to both types, which is why the surveying regulations Counter errors by stipulating that the Instrument must always be rotated around its axis in the same direction.
Die Erfindung, welche in Fig. ι bis 3 der Zeichnung erläutert ist, behebt diesen Fehler durch zwei Dreifüße ά und b, die mit Abstand übereinanderliegend angeordnet und durch eine Säule c starr gegenseitig verbunden sind. Auf diese Weise werden die Stellschrauben e an zwei voneinander entfernt liegenden Punkten in α und δ geführt. Die eine Führungsstelle b liegt dann nahe, die andere Führungsstelle a weiter ab vom Aufstellungspunkte d. The invention, which is explained in Fig. 1 to 3 of the drawing, eliminates this error by means of two tripods ά and b, which are arranged one above the other at a distance and are rigidly connected to one another by a column c. In this way, the adjusting screws e are guided at two points in α and δ that are distant from one another. The one guide point b is then close, the other guide point a further away from the installation point d.
Während früher die Stellschrauben an zwei Punkten, am Aufstellungspunkte und an der Führung im Dreifuße gehalten sind, sind bei der vorliegenden Erfindung die Stellschrauben an drei Punkten, am Aufstellpunkte, an der Führung im oberen Dreifuße und an der Führung im unteren Dreifuße des Doppeldreifußes gehalten.While earlier the adjusting screws at two points, the installation point and the Guide are held in the tripod, are the adjusting screws in the present invention at three points, the installation point, the guide in the upper tripod and the guide held in the lower tripod of the double tripod.
Wenn früher das Führungsdreieck e[ e[ e[ des Dreifußes zum Aufstellungsdreieck ^1 d2 ds um einen gewissen Winkelwert verdreht werden konnte, ist dies beim Doppeldreifuße der vorliegenden Erfindung nicht mehr möglich, da derselbe nunmehr zwei Führungsdreiecke besitzt, nämlich das Führungsdreieck e[ e[ e[ im Dreifuß α und das Führungsdreieck e" e" e1' im Dreifuß b, die. starr miteinander verbunden sind, so daß einer Verdrehung des einen Führungsdreieckes e[ e'% e's zum Aufstellungsdreieck d1 d2 ds das andere Führungsdreieck e't' e" e" hinderlich ist und keine Verdrehung zuläßt.If earlier the guide triangle e [e [e [of the tripod to the setup triangle ^ 1 d 2 d s could be rotated by a certain angular value, this is no longer possible with the double tripods of the present invention, since it now has two guide triangles, namely the guide triangle e [e [e [ in the tripod α and the guide triangle e "e" e 1 ' in the tripod b, the. are rigidly connected to each other, so that a rotation of one guide triangle e [e ' % e' s to the installation triangle d 1 d 2 d s the other guide triangle e ' t ' e "e" is a hindrance and does not allow any rotation.
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE295403C true DE295403C (en) |
Family
ID=549884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT295403D Active DE295403C (en) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE295403C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1448549B1 (en) * | 1962-05-17 | 1970-03-12 | Thomson Houston Comp Francaise | Three-legged frame for supporting heavy equipment with precise positioning |
| WO1989006767A1 (en) * | 1988-01-20 | 1989-07-27 | Bent Nielsen | Platform which can be adjusted in relation to a horizontal plane, especially for the support of a computer |
-
0
- DE DENDAT295403D patent/DE295403C/de active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1448549B1 (en) * | 1962-05-17 | 1970-03-12 | Thomson Houston Comp Francaise | Three-legged frame for supporting heavy equipment with precise positioning |
| WO1989006767A1 (en) * | 1988-01-20 | 1989-07-27 | Bent Nielsen | Platform which can be adjusted in relation to a horizontal plane, especially for the support of a computer |
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