FR2743881A1 - Precision clinometer with spirit-level for measuring angle of plane to horizontal - Google Patents
Precision clinometer with spirit-level for measuring angle of plane to horizontal Download PDFInfo
- Publication number
- FR2743881A1 FR2743881A1 FR9601035A FR9601035A FR2743881A1 FR 2743881 A1 FR2743881 A1 FR 2743881A1 FR 9601035 A FR9601035 A FR 9601035A FR 9601035 A FR9601035 A FR 9601035A FR 2743881 A1 FR2743881 A1 FR 2743881A1
- Authority
- FR
- France
- Prior art keywords
- protractor
- level
- spirit
- instrument according
- plane
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C9/00—Measuring inclination, e.g. by clinometers, by levels
- G01C9/18—Measuring inclination, e.g. by clinometers, by levels by using liquids
- G01C9/24—Measuring inclination, e.g. by clinometers, by levels by using liquids in closed containers partially filled with liquid so as to leave a gas bubble
- G01C9/26—Details
- G01C9/32—Means for facilitating the observation of the position of the bubble, e.g. illuminating means
Abstract
Description
La présente invention est du domaine de la mesure et elle a pour objet un instrument destiné à effectuer la mesure précise de l'inclinaison d'un plan par rapport à l'horizontale. The present invention is in the field of measurement and it relates to an instrument intended to carry out the precise measurement of the inclination of a plane relative to the horizontal.
On rappelle que l'on connatt le niveau à bulle, le vernier, la loupe et les rapporteurs gradués. Remember that you know the spirit level, the vernier, the magnifying glass and the graduated reporters.
Selon la présente invention .un instrument, dit "inclinometre de précision", destiné à effectuer la mesure précise de l'inclinaison d'un plan par rapport à l'horizontale comprend essentiellement un bâti à semelle plane supportant un rapporteur gradué supportant lui-même un niveau à bulle aligné sur la graduation zéro du rapporteur. According to the present invention .an instrument, called a "precision inclinometer", intended to carry out the precise measurement of the inclination of a plane with respect to the horizontal essentially comprises a frame with a flat sole supporting a graduated protractor supporting itself a spirit level aligned with the zero graduation of the protractor.
La présente invention sera mieux comprise, et des détails en relevant apparattront, à la description qui va être faite de sa forme préférée, en relation avec les figures de la planche unique annexée dans laquelle
La figure 1 illustre schématiquement en élévation un tel instrument vue de face, et
la figure 2 illustre le même vu de coté.The present invention will be better understood, and details will be apparent from the description which will be made of its preferred form, in relation to the figures of the single sheet appended in which
FIG. 1 schematically illustrates in elevation such an instrument seen from the front, and
Figure 2 illustrates the same side view.
Sur la fiv.1 un inclinometre de précision comprend un bâti 1 pourvu d'une semelle plane 2 et d'un montant 3 perpendiculaire à la semelle; sur une face latérale du montant est monté rotatif un rapporteur circulaire 4 gradué par exemple de 0 à 360-; sur le rapporteur est fixé un support 5 d'un niveau à bulle 6 (tube torique en verre scellé contenant un liquide et une bulle d'air pouvant être mise en position entre deux repères ) . On fiv. 1 a precision inclinometer includes a frame 1 provided with a flat sole 2 and an upright 3 perpendicular to the sole; on a side face of the upright is rotatably mounted a circular protractor 4 graduated for example from 0 to 360-; on the protractor is fixed a support 5 of a bubble level 6 (O-tube in sealed glass containing a liquid and an air bubble which can be positioned between two marks).
Un repère 7, qui peut avantageusement être accompagné d'une graduation de vernier 8, est gravé sur le montant en regard de l'axe 13 de rotation du rapporteur, la ligne 9 joignant le repère 7 à l'axe 13 étant rigoureusement parallèle au plan de la semelle.2. A mark 7, which can advantageously be accompanied by a vernier scale 8, is engraved on the upright opposite the axis 13 of rotation of the protractor, the line 9 joining the mark 7 to the axis 13 being strictly parallel to the sole plan. 2.
Avantageusement encore le support 5 du niveau à bulle est formé d'un tube en T renversé dont l'extrémité de la jambe 11 supporte un loupe 12 formant organe optique d'observation et de grossissement de la bulle, loupe dont l'axe optique 10 se confond avec la perpendiculaire au niveau à bulle et passe entre les repères de la bulle sur le niveau; le réglage de l'instrument est effectué au montage. Advantageously also the support 5 of the bubble level is formed of an inverted T-tube whose end of the leg 11 supports a magnifying glass 12 forming an optical organ for observing and enlarging the bubble, a magnifying glass whose optical axis 10 merges with the perpendicular to the spirit level and passes between the marks of the bubble on the level; the instrument is adjusted during assembly.
Avantageusement encore l'entratne- ment en rotation du rapporteur est effectué au moyen d'une vis 15 entrainée par une mollette, la vis engrenant dans un crantage circulaire 17 disposé au dos et au voisinage de la périphérie du rapporteur 4. Advantageously also, the drive in rotation of the protractor is carried out by means of a screw 15 driven by a wheel, the screw meshing in a circular notch 17 placed on the back and in the vicinity of the periphery of the protractor 4.
Avantageusement encore une face au moins 18 des faces de bord du bâti est perpendiculaire à la semelle pour servir de face d'appui dans la mesure de l'inclinaison par rapport à la verticale. Advantageously, at least one face at least 18 of the edge faces of the frame is perpendicular to the sole to serve as a bearing face in measuring the inclination relative to the vertical.
Enfin on peut tirer partie de l'organe optique sus visé pour remplacer les repères habituels du niveau à bulle par un repère unique situé sous la bulle, et utiliser le dioptre concave formé par la bulle pour viser ce repère unique. Finally, it is possible to take advantage of the above-mentioned optical member to replace the usual marks of the bubble level with a single mark situated under the bubble, and to use the concave diopter formed by the bubble to target this single mark.
L'invention trouve une application particulièrement avantageuse dans le génie civil, les construction fixes, etc.. et dans tous les domaines où l'on dédire connaître la valeur exacte d'une inclinaison. The invention finds a particularly advantageous application in civil engineering, fixed constructions, etc. and in all the fields in which it is deduced to know the exact value of an inclination.
Bien que l'on ait décrit ou représenté des formes particulière de réalisation ou d'application de l'invention , il doit être compris que la portée de cette dernière n'est pas limitée à ces formes mais qu'elle s'étend à toute forme de mise en oeuvre telle que la règle en est définie plus haut de façon générale. Although particular forms of embodiment or application of the invention have been described or represented, it should be understood that the scope of the latter is not limited to these forms but that it extends to any form of implementation as the rule is defined above in general.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9601035A FR2743881A1 (en) | 1996-01-24 | 1996-01-24 | Precision clinometer with spirit-level for measuring angle of plane to horizontal |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9601035A FR2743881A1 (en) | 1996-01-24 | 1996-01-24 | Precision clinometer with spirit-level for measuring angle of plane to horizontal |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2743881A1 true FR2743881A1 (en) | 1997-07-25 |
Family
ID=9488592
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR9601035A Pending FR2743881A1 (en) | 1996-01-24 | 1996-01-24 | Precision clinometer with spirit-level for measuring angle of plane to horizontal |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2743881A1 (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2439698A (en) * | 1946-04-11 | 1948-04-13 | Shaler Saul | Level |
US2619732A (en) * | 1951-02-13 | 1952-12-02 | Stanley R Vickery | Scientific leveling and measuring instrument |
US4073062A (en) * | 1975-07-03 | 1978-02-14 | Wright Donald E | Level |
US4656752A (en) * | 1986-06-02 | 1987-04-14 | Wu Chyi Yiing | Precise-reading angular level |
-
1996
- 1996-01-24 FR FR9601035A patent/FR2743881A1/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2439698A (en) * | 1946-04-11 | 1948-04-13 | Shaler Saul | Level |
US2619732A (en) * | 1951-02-13 | 1952-12-02 | Stanley R Vickery | Scientific leveling and measuring instrument |
US4073062A (en) * | 1975-07-03 | 1978-02-14 | Wright Donald E | Level |
US4656752A (en) * | 1986-06-02 | 1987-04-14 | Wu Chyi Yiing | Precise-reading angular level |
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