GB475133A - Improvements in or relating to recording instruments, such as recording theodolites - Google Patents

Improvements in or relating to recording instruments, such as recording theodolites

Info

Publication number
GB475133A
GB475133A GB13873/36A GB1387336A GB475133A GB 475133 A GB475133 A GB 475133A GB 13873/36 A GB13873/36 A GB 13873/36A GB 1387336 A GB1387336 A GB 1387336A GB 475133 A GB475133 A GB 475133A
Authority
GB
United Kingdom
Prior art keywords
shaft
recording
circles
coarse
engagement
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.)
Expired
Application number
GB13873/36A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Askania Werke AG
Original Assignee
Askania Werke AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Askania Werke AG filed Critical Askania Werke AG
Publication of GB475133A publication Critical patent/GB475133A/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C1/00Measuring angles
    • G01C1/02Theodolites

Abstract

475,133. Indicating and recording apparatus. ASKANIA-WERKE AKT.-GES. VORM. CENTRALWERKSTATT DESSAU UND C. BAMBERG-FRIEDENAU. May 15, 1936, Nos. 13873, 13874, and 13875. Convention dates, May 16, 1935, May 18, 1935, and May 25, 1935. [Class 106 (iv)] [Also in Group XX] In a recording instrument, for example a recording theodolite, having a rotary member 2, Fig. 1, bearing a coarse scale and a rotary member 5 bearing a fine scale, the latter is provided with a number of similar scales arranged end to end and is so geared to the coarse scale bearing member that its movement through the range of one of its scales corresponds to the movement of the coarse scale bearing member through one division of the coarse scale. As shown, gear wheels 6, 10 are carried by a shaft 11 rotatably mounted on an arm 7 which is pivoted at 7<1> and biassed by a spring to move the gears 6, 10 into engagement with gears 3, 4 carried by the members 2, 5. The depth of engagement may be controlled by a screw adapted to contact with an abutment on the lever 7. In the theodolite shown in Figs. 3 and 4, the telescope 3, 3<1> is mounted in a hollow shaft 2 rotatable about a horizontal axis N in the housing 1, which is rotatable on a stationary part 6 about a vertical axis H. A bevel gear 4, to which the azimuth coarse circle 5 is fixed, is loosely mounted on shaft 2 and is pushed by a spring 16 into engagement with a bevel gear 7 fixed to the stationary part 6. The altitude coarse circle 8 is fixed to the shaft 2. The fine circles 9, 10 are loosely mounted on the shaft 2 and are driven from the circles 5, 8 respectively by transmission gears 11. The circles 5, 9, 8, 10 lie side by side and their position may be recorded by printing mechanism 18, which preferably draws a strip of carbon paper and a record strip past the circles. The Specification as open to inspection under Sect. 91 describes a printing mechanism detachably or hingedly connected to the instrument casing. This subject-matter does not appear in the Specification as accepted.
GB13873/36A 1935-05-16 1936-05-15 Improvements in or relating to recording instruments, such as recording theodolites Expired GB475133A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE475133X 1935-05-16

Publications (1)

Publication Number Publication Date
GB475133A true GB475133A (en) 1937-11-15

Family

ID=6541809

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13873/36A Expired GB475133A (en) 1935-05-16 1936-05-15 Improvements in or relating to recording instruments, such as recording theodolites

Country Status (1)

Country Link
GB (1) GB475133A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107878090A (en) * 2017-12-11 2018-04-06 泰兴市宏伟机电环保科技有限公司 A kind of environment protection-type noise reduction pattern finishing impression machine
CN115979219A (en) * 2023-03-20 2023-04-18 山东省国土测绘院 Intelligent land surveying and mapping gradiometer capable of autonomous operation

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107878090A (en) * 2017-12-11 2018-04-06 泰兴市宏伟机电环保科技有限公司 A kind of environment protection-type noise reduction pattern finishing impression machine
CN115979219A (en) * 2023-03-20 2023-04-18 山东省国土测绘院 Intelligent land surveying and mapping gradiometer capable of autonomous operation

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