Mergenthaler Linotype Company "Mailing Sheets" were engineering-style drawings which gave installation and service procedures for various aspects of the Linotype. They were of various sizes, from ANSI A (basically US Letter size) through at least ANSI D.
When viewing the higher-resolution versions here, it is usually best to download them to your computer and view them offline using a proper image viewing tool. Viewing them with a web browser will probably be unsatisfactory.
M.S. 580 (Micro-Therm, 1942/1948)
"Mailing Sheet Showing Parts Necessary to Apply the Pot (Micro-Therm) Crucible Temperature Control with Neon Lamps to Outstanding Electric Machines with [illegible] Thermometer having Terminal Block (F-3109) or Mechanical Thermostat having Terminals [illegible]." (Brooklyn: Mergenthaler Linotype Company, 1942 (Checked/OK 1948.)) The original from which this was scanned is in very poor condition. It is an old diazo copy, approximately ANSI D size, of an older print of the 1948 edition of this sheet, found in the bottom of a box of old parts. What is illegible on the digital version is also illegible on the paper print.
The icon at left links to a reduced-size (2048 pixel wide JPEG) version of this sheet. That's a version big enough to let you know if it's the sheet you're looking for, but not really big enough to read the small print easily. Here is a high-resolution version (15520x10352 pixels, JPEG, 48 Megabytes in size): mlc-mailing-sheet-580-1942-1948-0600rgb-stitched1.jpg
M.S. 607 (Pot Pump Locking Pin, 1950)
"Mailing Sheet Showing Application of New Style Pot Pump Locking Pin and Related Parts to Outstanding 30 EM Machines List #320, 321, 322, 323, 324, 342, 381, 382, 383, 395 [crossed out], 397, 399, 400, 401, 405, 411-". (Brooklyn, NY: Mergenthaler Linotype Company, 1950/1959.) Drawin 1950-03-026. Revision 5, 1959-02-29.
There is a discontinuity in the stitching in the middle of the title block (between "of/New", "Outs/tanding", and "383/395") It doesn't affect the information content, and it would have been more work than it was worth to try to convince the stitching sofwtware to correct it.
M.S. 634 (Keyrod Mod. for Spaceband Keyrod H-6485, 1952)
"Mailing Sheet Showing Corner of Upper Keyrod Banking Rod To Be Removed for Clearance of New Style Spaceband Keyrod H-6485." Mailing Sheet No. 634. (Brooklyn, NY: Mergenthaler Linotype Company, 1952-09-30.)
The icon at left links to a 2048 pixel wide JPEG version of this image. Here is a PDF of a 6640 pixel wide (600dpi) JPEG version (12 Megabytes): mlc-mailing-sheet-0634-modification-for-new-style-spaceband-keyrod-original-print-linofish-1200rgb-recto-rot90ccw-crop-13280x10104-scale-6640x5052.pdf
Scanned from the original. Thanks are due to Greg Fischer (The Linofish) for preserving it.
M.S. 648 (Pot Pump Lever Shaft B-666, 1955)
"Mailing Sheet Showing Application of Pot Pump Lever Shaft B-666" (Brooklyn, NY: Mergenthaler Linotype Company, 1955-08-11)
This drawing specifies Set Screw J-1451 (and such a screw was indeed present in the envelope with the drawing as acquired). This part, J-1451, is not shown in the Mergenthaler parts book you'd expect a pot pump lever set screw to be in (No. 52). Instead, it is shown in Catalog No. 51, pp. 28-29, as "Keyboard, Auxiliary, Support Shaft Collar, Upper, Set Screw 5/16" - 18 x 1/2".
My original here is an approximately ANSI A size diazo copy of an older drawing, slightly clipped on the right-hand side. It was acquired presumably in the state supplied, in the parts envelope shown below:
The Mergenthaler Mailing Sheets reprinted here were published in the US without copyright notice at a time when such notice was required to secure copyright. They therefore passed into the public domain upon initial publication. These digital reprints remain in the public domain.
All portions of this document not noted otherwise are Copyright © 2012 by David M. MacMillan and Rollande Krandall.
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