File:Tornio per forare - Museo scienza tecnologia Milano 03860.jpg
Original file (1,600 × 1,067 pixels, file size: 303 KB, MIME type: image/jpeg)
Captions
tornio per forare ( ) | ||||||||||||||||||||||||
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Title |
tornio per forare |
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Description |
Italiano: Struttura di ferro, a ponte rovesciato, terminante con guide passanti. Il meccanismo è azionato da manovella di ottone con braccio rettilineo e pomolo cilindrico terminale di legno. Ingranaggio a ruote dentate di ottone solidale alla manovella. Fissabile in morsa.
Serve a forare ortogonalmente, mediante punte, lo spessore del pezzo da lavorare.
Il procedimento prevede l'impiego di una punta scorrevole entro supporto, destinata ad forare il pezzo in lavorazione. Le prime punte erano a forma di lancia (oggi elicoidali). Erano normalmente costruite dallo stesso orologiaio che le ricavava al bisogno da una barra d'acciaio a sezione circolare. Ne modellava poi la punta, e la rifiniva su superficie abrasiva.
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Date |
between 1800 and 1899 date QS:P571,+1850-00-00T00:00:00Z/7,P1319,+1800-00-00T00:00:00Z/9,P1326,+1899-00-00T00:00:00Z/9 |
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Medium | ferro | |||||||||||||||||||||||
Dimensions |
height: 5 cm (1.9 in); width: 15 cm (5.9 in) dimensions QS:P2048,5U174728 dimensions QS:P2049,15U174728 Weight: 223 kg (495.19 lb) |
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Collection |
institution QS:P195,Q947082 |
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Accession number |
3860 |
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Object history | Pinardi, Wolfango | |||||||||||||||||||||||
References |
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Source/Photographer | Catalogo collezioni (in it). Museoscienza.org. Museo nazionale della scienza e della tecnologia Leonardo da Vinci, Milano. | |||||||||||||||||||||||
Permission (Reusing this file) |
This file is licensed under the Creative Commons Attribution-Share Alike 4.0 International license.
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File history
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 07:13, 21 May 2016 | 1,600 × 1,067 (303 KB) | Federico Leva (WMIT) (talk | contribs) | {{ICCD TRC | institution = {{institution:Museoscienza}} | permission = {{cc-by-sa-4.0}} | RSR1 = Brenni, Paolo | CTP = Industria, Manifattura, Artigianato | CMPD = 2008 | INV1N = 3860 | CTC = manovella | UTF = Serve a forare ortogonalmente, median... |
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Metadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
Camera manufacturer | Canon |
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Camera model | Canon EOS-1Ds Mark II |
Author | Peter Aaron |
Exposure time | 1/4 sec (0.25) |
F-number | f/18 |
ISO speed rating | 50 |
Date and time of data generation | 07:22, 22 February 2010 |
Lens focal length | 85 mm |
Width | 3,200 px |
Height | 2,133 px |
Bits per component |
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Compression scheme | Uncompressed |
Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Data arrangement | chunky format |
Software used | Adobe Photoshop CS3 Macintosh |
File change date and time | 13:10, 13 March 2010 |
Exposure Program | Manual |
Exif version | 2.21 |
Date and time of digitizing | 07:22, 22 February 2010 |
APEX shutter speed | 2 |
APEX aperture | 8.33985 |
APEX exposure bias | 0 |
Maximum land aperture | 1.625 APEX (f/1.76) |
Metering mode | Partial |
Flash | Flash did not fire, compulsory flash suppression |
Color space | Uncalibrated |
Focal plane X resolution | 3,526.7605633803 |
Focal plane Y resolution | 3,528.0423280423 |
Focal plane resolution unit | inches |
Custom image processing | Normal process |
Exposure mode | Manual exposure |
White balance | Manual white balance |
Scene capture type | Standard |
Image width | 1,600 px |
Image height | 1,067 px |
Serial number of camera | 305634 |
Lens used | 85.0 mm |
Owner of camera | Peter Aaron |
Rating (out of 5) | 0 |
Date metadata was last modified | 14:10, 13 March 2010 |