Question

Mainspring tension causes the movement of carriage from _____ to ______.

• A. Left , Right
• B. Right , Left
• C. Top , Bottom
• D. None of these

Answer 1

Answer:

B. Right , Left

Mainspring

• Mainspring is the key part of the typewriter.
• It is called the heart of the typewriter.
• It is situated on the back left side of the typewriter.
• The force of the mainspring is transmitted to the carriage by means of draw cord.
• Main spring tension causes the movement of carriage from right to left.
• A high main spring tension causes the Jerky movement of the carriage.
• A low main spring tension causes the sluggish movement of the carriage
• If the mainspring tension is increased carriage does not work properly and letters fall on one over  other . This is known as overlapping.
• Mainspring of a standard typewriter weighs about 453.60gm (1 pound or 16 ounce).
• Tension in a typewriter other than mainspring tension

                      1. Key tension

                      2. Touch Regulator tension