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The cutter described breaks or cuts glass fibers for use in fiber-optic communications systems and eliminates the need for elaborate or expensive tools.
English (United States)
This text was extracted from a PDF file.
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This is the abbreviated version, containing approximately
79% of the total text.
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Low Cost Glass Fiber Cutter
The cutter described breaks or cuts glass fibers for use in fiber-optic
communications systems and eliminates the need for elaborate or expensive
The device consists of a piece of spring steel 1 formed in the manner shown
in Figs. 1 and 2. It is formed to provide a clamp 2 for the bare fiber 3, a radius
ramp 4, a pressure clamp 5, and a cutter (breaker) blade 6. The cutter (breaker)
blade 6 is flame coated with tungsten carbide and lapped to a fine edge. An
aperture 7 is provided at one end for entrance of the fiber-optic cable. A
manually adjustable screw 8 is provided for bare fiber clamp 2. Slots 9 and 10
are provided to guide the screw clamp end.
The device operates in the following manner. A cable 11 with the necessary
amount of covering and protective shield removed is inserted into the cable
entrance aperture 7 in the device. It is then placed on the radius ramp 4 so that
the proper length of bare fiber extends from the protective shield to the cutter
(breaker) blade 6 and to screw clamp 2. The additional bare fiber is then
clamped in screw clamp 2. Upon applying pressure to the pressure point 12, the
following sequence takes place. The fiber pressure clamp 5 closes and starts to
clamp the fiber. As pressure application continues, the fiber is securely clamped.
Due to the pressure, the upper leg tends to straighten out, causing the screw
clamp end to extend. This applies tension to the fiber. As pressure is continued