Capsule for a compass and use thereof

A package and compass technology, applied in compass, measuring device, surveying and navigation, etc., can solve the problems of inaccuracy, distortion, misreading, etc., and achieve the effect of reducing the formation of air bubbles, low manufacturing cost, and simple pressure compensation

Inactive Publication Date: 2020-01-21
施泰纳光学有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, it is not good to find even a small air bubble, because as a result, the movement of the scale device, that is, the movement of the rose, is incorrectly or excessively damped, and therefore misreadings occur
Additionally, air bubbles beneath the transparent coverslip impair the legibility of the ruler device
Therefore, in general, the readout results are significantly deteriorated and distorted

Method used

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  • Capsule for a compass and use thereof
  • Capsule for a compass and use thereof
  • Capsule for a compass and use thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0056] figure 1 is a schematic cross-section of a compass package 1 according to the present invention. The package comprises a lid 2 and a base 4 which are rigidly interconnected by a common side surface 6 . Furthermore, the base 4 comprises a bearing arrangement 8 . The bearing device is advantageously designed as a pin, on which the scale device 10 is arranged by means of a bearing 11 for rotatable mounting. The scale device 10 is designed as a rose and comprises at least one magnet 12 on its lower surface. For fixing and / or balancing the scale device 10 at least one washer 14 can also be provided. The arrangement facilitates determination of cardinal directions using the compass package 1 .

[0057] The cover 2 , the base 4 and the side surfaces 6 span the volume G of the housing. The part of the side surface 6 which is arranged outside the housing spans the pressure compensation element volume D together with the pressure compensation element 18 designed as a C-shape...

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PUM

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Abstract

The invention relates to a capsule for a compass and use thereof. The capsule has a housing designed in multiple parts for receiving at least one scale device (10) for reading at least one geographical indication, wherein the scale device (10) is arranged mounted on a mounting device (8), and the housing has a cover part (2) for upper closure of the housing and a base part (4) for lower closure ofthe housing, wherein the cover part (2) and base part (4) are permanently connected to each other via a perforated shell surface (6). Furthermore, the capsule has a pressure equalization element (18)arranged around the housing and spanning the shell surface (6) at least in part for equalizing pressure fluctuations of a liquid medium arranged in the compass capsule (1), wherein the pressure equalization element (18) is designed in an elastic manner.

Description

technical field [0001] The invention relates to a package for a compass comprising at least one housing formed in several parts, and to the use of the package. At least one scale device for reading at least one geographical indication is arranged in the fluid medium itself in a manner mounted on the bearing device. Background technique [0002] Conventional compass packages are known from the prior art, which are formed by a housing containing a fluid medium arranged therein. In turn, a scale is provided in the housing itself, usually designed as a rose. The scales are rotatably mounted on corresponding pins. Petroleum or paraffin oil is often used as the fluid medium, as these long chain hydrocarbons have a sufficiently high viscosity to dampen the rose accordingly when the rose is aligned, and allow easy reading of at least one geographic indication. [0003] However, it has been found in practice to be disadvantageous to provide long-chain hydrocarbons as fluid medium ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C17/08
CPCG01C17/08
Inventor M·鲁克德舍尔W·迈尔-文特
Owner 施泰纳光学有限责任公司
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