The Morkrum Company Model 11 Typewheel Tape Printer, at about 45 words-per-minute, was a bit faster the Morkrum Printing Telegraph Blue/Green-Code printers, and was somewhat modeled after the European Baudot Telegraph System printer. The Model 11 was a Tape Printer which used gummed paper tape (that could be pasted onto a telegram blank). Various types of moisteners were used, each having a container of water and a felt wick. [5]

One feature first developed for the Model 11 was that of "cushioned" keytops, which had small springs inside them. The tops were also of soft material, and the combination had a good "feel" according to the typists using the keyboard. This feature was carried over to many later Models during the succeeding years, until replaced by cheaper molded plastic. [5]

Another new feature was the motor driven "cam-and-contacts" type of sending distributor which took the place of the "brushes-and-faceplate" type. This too was carried over to many succeeding Models. The Governor began to look like later versions, but the control was still on the outside, with an adjusting screw giving precise settings. White dots on the periphery of the Governor were now used in conjunction with vibrating tuning forks to set the Motor speed. The Governor had heavy weights within it, their positions during rotation being transferred to a plunger on the shaft axis for working the external contact. [5]

M11 printers were produced from 1921 to 1925 under the Morkrum Company, and from 1925 to 1927 under the Morkrum-Kleinschmidt Company, but were all branded "Teletype." The scroll symbol was also introduced for the Model 11 machine.

Model 11 Tape Printer

Standard Model: 11
Military Model: None
Design Relative: Baudot Telegraph System
Manufactured: 1921-1927?
Units Produced: 883
Units Remaining: 1 (TU-Delft; estimated)
Dimensions (inches): ??
Weight (pounds): ??

Keyboard: ??
Code: ?? at about 45 words-per-minute
Interface: ??
Motors: 110-VAC Synchronous
Options: ??

This is the only M11 known to exist; it's in the Netherlands. * The large box to the left of the keyboard is likely a power switch for 220V. M11-1b.jpg

Enhancing the detail in the shadows, you can see the Teletype name and scroll, which was first introduced on the Model 11. M11-1c.jpg

This looks like a receive-only version, in a glass case. M11-2.jpg

This drawing is from a patent on the Model 11. M11-3.jpg