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Author Topic:  Maybe part of an old door lock?  (Read 145 times)

Offline Auspostal

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Maybe part of an old door lock?
« on: September 10, 2017, 19:00 »
Any ideas?

Linkback: http://forum.kimbucktwo.com/index.php?topic=31807.0
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Offline Sambo

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Re: Maybe part of an old door lock?
« Reply #1 on: September 10, 2017, 21:35 »
Not sure, but from memory, part of a rifle sight?

Sambo
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Offline Mog

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Re: Maybe part of an old door lock?
« Reply #2 on: September 12, 2017, 18:51 »
These are called a matrix or a mould from a linotype typesetting machine used for making lines of lead type for printing.
There are 90 keys on the keyboard and 90 variations of the little steps in the "V" shaped notch. When a key is pressed, the corrosponding matrix is dropped into the line of text. Molten lead is then injected into the line of matrixes or moulds, forming a line of lead type that can be used for printing.
The matrixes are then loaded back into the machine and work continues.
The lines of lead type are used to print a newspaper or whatever, then sent back to the linotype machine and re-melted.
A lot easier than going through drawers of pre made type and setting each letter manually then clamping it all together and printing.
The linotype machine was invented in 1886.
If you look closely, there will be a character somewhere on the matrix, usually a couple, one as the mould part where the lead would be injected, sometimes another in the injection area as a bold or italic, and sometimes a visual reference.
I remember watching a youtube video about linotype years ago, but this info came from a printer with 50 years experience where I work.
Hope that makes a bit of sense.


If you would like any more info, let me know and I'll ask Dave to explain and I'll take some pics.
« Last Edit: September 12, 2017, 19:04 by Mog »

Offline Auspostal

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Re: Maybe part of an old door lock?
« Reply #3 on: September 12, 2017, 18:59 »
Wow thank you. That explains the 2 N's on it. Amazing thanks
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Offline John-au

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Re: Maybe part of an old door lock?
« Reply #4 on: September 12, 2017, 19:02 »
I have to agree, that was amazing Mog.
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Offline Mog

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Re: Maybe part of an old door lock?
« Reply #5 on: September 12, 2017, 19:06 »
Look like Q's to me. The deep parts would be the printing surface.
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Offline Mog

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Re: Maybe part of an old door lock?
« Reply #6 on: September 12, 2017, 19:09 »
Closer look and probably N's
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Offline Auspostal

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Re: Maybe part of an old door lock?
« Reply #7 on: September 12, 2017, 19:20 »
Found at a 1920s site
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Offline Mog

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Re: Maybe part of an old door lock?
« Reply #8 on: September 12, 2017, 19:41 »
I found that video if anyones interested. www.youtube.com/watch?v=gRHOPmGUtPA

Start it at around 1.30 and watch till you're sick of it.
« Last Edit: September 12, 2017, 19:43 by Mog »
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Offline Mossop

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Re: Maybe part of an old door lock?
« Reply #9 on: September 12, 2017, 21:21 »
These are called a matrix or a mould from a linotype typesetting machine used for making lines of lead type for printing.
There are 90 keys on the keyboard and 90 variations of the little steps in the "V" shaped notch. When a key is pressed, the corrosponding matrix is dropped into the line of text. Molten lead is then injected into the line of matrixes or moulds, forming a line of lead type that can be used for printing.
The matrixes are then loaded back into the machine and work continues.
The lines of lead type are used to print a newspaper or whatever, then sent back to the linotype machine and re-melted.
A lot easier than going through drawers of pre made type and setting each letter manually then clamping it all together and printing.
The linotype machine was invented in 1886.
If you look closely, there will be a character somewhere on the matrix, usually a couple, one as the mould part where the lead would be injected, sometimes another in the injection area as a bold or italic, and sometimes a visual reference.
I remember watching a youtube video about linotype years ago, but this info came from a printer with 50 years experience where I work.
Hope that makes a bit of sense.


If you would like any more info, let me know and I'll ask Dave to explain and I'll take some pics.

That's brilliant work!!!! You guys are great.
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I wanna AM to find finding stuff older than I am . . . . . .

Offline ANT1967

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Re: Maybe part of an old door lock?
« Reply #10 on: September 12, 2017, 21:37 »
Great explanation Mog & Thank you


P.S . Do you own the camera & spy museum ..? 😎
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Anywhere , Everywhere , Nowhere & 
Somewhere are the same place  !!

Offline Mog

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Re: Maybe part of an old door lock?
« Reply #11 on: September 12, 2017, 22:57 »
No I don't have anything to do with th spy camera dude. 
  • Detector(s) owned/used: Xterra 305, E-trac, Garrett Pro-Pointer
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