We have only three layers of material-- the metal contact, the carbon film and the electrical contacts to address each pixel.
12.
Wooden brake shoes perform well, but if subjected to numerous high-speed applications they develop a carbon film that diminishes brake performance.
13.
The Tech-3 ribbon offered equivalent security to the carbon film ribbon, as its impressions were permanent as soon as they were struck.
14.
Prior to about 1970 the most common cause of Type 1 pitting was carbon films left in the bore by the manufacturing process.
15.
Most of the heating films sold are based on a carbon film, a silver booth bar, copper foil booth placed under a Laminex film.
16.
The latter used a carbon pigment similar to that on the regular carbon film ribbon, but its binder did not permanently adhere to the paper.
17.
The original Selectric had to be ordered to use either cloth reusable ribbon or one-time carbon film ribbon; the same machine could not use both.
18.
This was also true of the original, non-correcting Selectric II . IBM had used a similar carbon film ribbon on their earlier Executive series of typewriters.
19.
There are also many variations of this underfloor heating system, as many underfloor heaters are based on PTC heating element, far-infrared rays, carbon film, or cables, etc.
20.
White cover-up ribbons were used with fabric ink ribbons, or an alternate premium design featured plastic lift-off correction ribbons which were used with carbon film typing ribbons.
