Original file (1,267 × 408 pixels, file size: 106 KB, MIME type: image/jpeg)
Summary
DescriptionLinotype Matrix Transposition Error (crop).JPG |
English: This is a photo of two lines of metal-cast characters, produced by a Linotype machine. In one of the lines, the letter H is in the wrong position in the line, which was explained to me as being due to the machine not being cleaned as often as they would like.
The image is upside down. Linotype slugs, like all hot metal type, were read from left to right.The matrixes are lubricated with graphite powder, while the rest of the machine is lubricated with oil. Oil and graphite don't mix very well, and produce a slimy substance that slows down movement of the matrixes, causing them to arrive more slowly than other matrixes and to become assembled out of order. So while the operator did not make any mistake (and in this case the machine was being driven by a repeating loop of punched tape), the mistake was due to the slow matrix. Type lines produced from a demonstration Linotype machine operating in the Western Minnesota Stream Threshers Reunion (WMSTR) printing building in Rollag, Minnesota, USA. (This is an example of how a mistake can be an educational event. I don't feel bad about making light of this typesetting production error since the press operators are running the Linotype machine for operational demonstration purposes only, for the general public to observe and discuss, and so perfect operation for actual typesetting application is not a requirement for the demonstration. Most of these type lines get tossed back in the melting pot after demonstration casting.) - Dale Mahalko, Gilman, WI |
Source | Own work |
Author | DMahalko |
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Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License.http://www.gnu.org/copyleft/fdl.htmlGFDLGNU Free Documentation Licensetruetrue |
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Creative Commons Attribution-ShareAlike 3.0 Unported
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Canon PowerShot A640
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 23:38, 26 November 2008 | 1,267 × 408 (106 KB) | DMahalko | {{Information |Description={{en|1=This is a photo of two lines of metal-cast characters, produced by a Linotype machine. In one of the lines, the letter N is in the wrong position in the line, which was explained to me as being due to the machine not bein |
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Camera manufacturer | Canon |
---|---|
Camera model | Canon PowerShot A640 |
Exposure time | 1/80 sec (0.0125) |
F-number | f/2.8 |
Date and time of data generation | 17:49, 26 November 2008 |
Lens focal length | 7.3 mm |
Orientation | Normal |
Horizontal resolution | 180 dpi |
Vertical resolution | 180 dpi |
File change date and time | 17:49, 26 November 2008 |
Y and C positioning | Centered |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Scene capture type | Standard |
Exif version | 2.2 |
Date and time of digitizing | 17:49, 26 November 2008 |
Image compression mode | 5 |
Shutter speed | 6.3125 |
APEX aperture | 2.96875 |
Exposure bias | 0 |
Maximum land aperture | 2.96875 APEX (f/2.8) |
Metering mode | Pattern |
Flash | Flash did not fire, compulsory flash suppression |
Color space | sRGB |
Focal plane X resolution | 12,710.801393728 |
Focal plane Y resolution | 12,725.581395349 |
Focal plane resolution unit | inches |
Sensing method | One-chip color area sensor |
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Ferns27
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Fruits3
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Garden Plants23
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Herb17
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Northeast Native Plants112
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Rose1
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Wildbirds172
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