Date: July 18, 2011

Jag BrushTM Is Less Likely Than Standard Jag or Loop To Become Stuck, Part III:
Effect of Bristle Flex

Los Angeles, CA — the flexibility of Jag BrushTM bristles creates a dynamic gap
clearance, and, in turn, a Jag BrushTM and patch combo is less likely, than a
standard jag and patch combo, to become stuck in a bore.

Diameters of ribs of a solid jag are sized by its designer to push a specific patch
thickness or a precise number of pleated patch layers.  Because the ribs are
inflexible, there is a narrow tolerance range for correct numbers, and when a jag is
used with thickness or pleat number straying from the narrow range, the combo is
likely to become stuck in the bore.

Also being rigid, a standard metal or plastic loop has a narrow range for correct
patch thickness or pleat number.  Its eye has fixed gap clearances, the smaller one
at loop profile and the larger at loop face.  Like a standard jag, a loop and patch
combo become stuck in a bore when a patch too large or too thick is used.

On the other hand, the flexible bristles of a Jag BrushTM give it a broader tolerance
range for patch thickness or pleat number.  It can flex to accommodate many pleats
at bore entry or inside the bore without becoming stuck.  Evidence is the fact that a
Jag BrushTM has a greater upper limit for the amount of single-patch 5-layer it can
accommodate.

The greater limit is verified by the fact that a Jag BrushTM pushes even more than 5-
layer pleats of thick patch through a bore.  Solid standard jags and loops cannot do
that.  While not recommended, a carefully used Jag BrushTM can push two thick
patches doubled up down a bore.  The doubled patches form 6-layer pleats, and the
number 6 is known by the fact 6 is twice each patch’s 3-layer pleating.

The Table that follows shows gaps created by standard jags.  It shows that typical
gaps are 1 to 2.5 times the thickness of a thick cotton patch.  Because cotton flannel
compresses, we see that standard jags, at their largest rib location, use or require 3-
layers of pleating.  2-layers of pleating is not available there since 2-layer pleating
does not occur near the top of a jag, being the location where only odd numbers of
pleats occur and where the largest rib is.  Keeping in the mind the rigidity of their
structure and the fact that cotton compresses only so much, the range "1 to 2.5"
shows that standard jags at their largest rib location have trouble pushing through a
5-layer pleating of thick cotton patch since 5 is well above the upper limit of 2.5.










































PRESS CONTACTS                                                                                 

Shane Smith
+1  310-463-7811 (mobile)
RigelProducts@yahoo.com


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Press Release
Caliber
Jag Largest Rib
Diameter

(Inches)
Min Gap Range
for Jags to Bore
Wall

(Inches)
Gap/Thickness

Ratio: jag gap to
0.016" patch
thickness
17
0.130 to 0.140
0.016 to 0.021
1.00 to 1.31
20
0.167 to 0.168
0.016
1.00
22
0.165 to 0.196
0.016 to 0.028
1.00 to 1.75
6 mm
0.172 to 0.205
0.016 to 0.032
1.00 to 2.00
243
0.172 to 0.205
0.019 to 0.036
1.19 to 2.25
25
0.197 to 0.217
0.016 to 0.018
1.00 to 1.13
6.5 mm
0.197 to 0.217
0.015 to 0.029
0.94 to 1.81
270
0.197 to 0.230
0.021 to 0.037
1.31 to 2.31
7 mm
0.197 to 0.230
0.023 to 0.039
1.44 to 2.44
30
0.249 to 0.255
0.028 to 0.030
1.75 to 1.88
338
0.273 to 0.299
0.032
2.00
35
0.290 to 0.307
0.022 to 0.023
1.38 to 1.44
9 mm
0.290 to 0.307
0.024 to 0.032
1.5 to 2.0
375
0.325 to 0.336
0.020 to 0.025
1.25 to 1.56
40
0.362 to 0.378
0.011 to 0.019
0.69 to 1.19
44
0.365 to 0.393
0.023 to 0.038
1.44 to 2.38
45
0.375 to 0.409
0.024 to 0.038
1.5 to 2.38
50
0.47
0.015
0.94 or less