Both models introduced 1936. Four main and (50 S.M.) four side magazine mixers in adjacent pairs (1 & 2, 2 & 3, 3 & 4). These became the standard multi-magazine mixers until they were replaced by the English Model 70 some time after 1959. ( {L&M 1964}, p. 2.)
In terms of market-segment correspondences, these machines filled the same roles as were filled in America by the American "Blue Streak" Models 29/ 30 (standard 4-magazine mixers, 1937- ).
{L&M Circa 1936}, pp. 34-35 describes the Model 50 as "the standard four-magazine machine, with two distributors" (that is, the standard 4-magazine mixer). It supported "all sizes up to 18-point, and some 24-point founts". Swinging keyboard (as in the Model 48). Standard measure 30 picas, with 36 pica machines available.
{L&M 1964}, p. 2, dates the introduction of the Model 50 and Model 50 S.M. to 1936. This was one year before the American Models 29 and 30, and the same year as the American "Blue Streak" rebranding.
Here is the English Model 50 as shown in {L&M Circa 1936}, p. 29.
(Please see the "IMPORTANT NOTE on the copyright status of: The Linotype: Its Mechanical Details and their Adjustment and Mechanism and Operation of Modern Linotypes" in the legal fine print at the bottom of this page. This image may be in copyright in your country, and is not licensed under the same Creative Commons license as the rest of this page. It is used here under the doctrine of "Fair Use" in US copyright law.)
{L&M Circa 1936}, p. 30, notes that the Models 50 and 50 S.M. "main magazines were wider than normal" (but they were not yet the "Super Range" machine).
Here is the English Model 48 S.M. as shown in {L&M Circa 1936}, p. 31.
(Please see the "IMPORTANT NOTE on the copyright status of: The Linotype: Its Mechanical Details and their Adjustment and Mechanism and Operation of Modern Linotypes" in the legal fine print at the bottom of this page. This image may be in copyright in your country, and is not licensed under the same Creative Commons license as the rest of this page. It is used here under the doctrine of "Fair Use" in US copyright law.)
The English Model 50 S.M. shown in Mechanism and Operation of Modern Linotypes {L&M 1952}, p. xx. indicates that, just as had been the case with the Model 48, they had added a bit more sheet metal by the 1950s.
(Please see the "IMPORTANT NOTE on the copyright status of: The Linotype: Its Mechanical Details and their Adjustment and Mechanism and Operation of Modern Linotypes" in the legal fine print at the bottom of this page. This image may be in copyright in your country, and is not licensed under the same Creative Commons license as the rest of this page. It is used here under the doctrine of "Fair Use" in US copyright law.)
The guidelines for "Space Required for Linotypes" in {L&M Circa 1936}, p. 163, specify:
Here is the installation floor plan for English Models 50 and 50 S.M. as shown in {L&M Circa 1936}, p. 166.
(Please see the "IMPORTANT NOTE on the copyright status of: The Linotype: Its Mechanical Details and their Adjustment and Mechanism and Operation of Modern Linotypes" in the legal fine print at the bottom of this page. This image may be in copyright in your country, and is not licensed under the same Creative Commons license as the rest of this page. It is used here under the doctrine of "Fair Use" in US copyright law.)
{L&M Circa 1936} The Linotype: Its Mechanical Details and their Adjustments. London: Linotype and Machinery Limited, [n.d., circa 1936]
{L&M 1952} Mechanism and Operation of Modern Linotypes. London: Linotype and Machinery Limited, 1952. (Printed Jan. 17, 1952)
{L&M 1964} The Linotype Manual. London: Linotype and Machinery Limited, 1964.
IMPORTANT NOTE on the copyright status of: The Linotype: Its Mechanical Details and their Adjustment , printing code "2128 M 1/EY" and Mechanism and Operation of Modern Linotypes. The first of these books is undated, but probably dates to around 1936. (The latest two machines it mentions are the English Model 50, introduced in 1936, and the A-P-L, introduced in America by 1935. As of 2013, if this volume was published before 1938, then as an anonymous corporate work it is in the public domain in England. However, as this volume was in copyright in England on Jan. 1, 1996, due to the implementation of the Uruguay Round of GATT it acquired a US copyright which will, under current law, expire 95 years from its date of publication. The U.S. does not recognize a "rule of the shorter term." The second of these books was published Jan. 17, 1952 and it is in copyright both in England and the US. It is my assertion, however, that the brief excerpts from these book used in these web pages for the critical analysis of this historical product line constitute "Fair Use" under U.S. copyright law. Please be advised, therefore, that these excerpts and images may not be in the public domain in your country and not licensed under the same Creative Commons license as the pages on which they appear.
All portions of this document not noted otherwise are Copyright © 2013 by David M. MacMillan and Rollande Krandall.
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