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Chandler & Price Pilot Press
Gripper Bar Clamp
& Spring Details
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While adjusting
this press for printing, it is important that you
clean and adjust the gripper bar so that you can
mount the gripper arms and easily create friskets
when needed as well as use them to draw the printed
sheet away from the tacky, sometimes glue-like ink
on the form.
It's pretty easy to take this assembly apart for
cleaning, but reassembly can be confusing. The
adjustment requires the proper installation of some
unfamiliar parts.
Hopefully, these photos and the line drawing will
illustrate for you the proper way to assemble these
parts.
C&P New Series 6x10
Pilot Gripper Bar & Guide Spring mounting details
267 - Gripper Bar Clamp
C&P Old Series 6x10
Pilot Gripper Bar Mounting Details
Note that the gripper arm itself is pretty near
vertical when the press is open like this. Just be
sure to allow sufficient clearance so that they
rollers do not jam on top of the grippers as they come
down over the form.
Once the parts are installed properly, it's a pretty
straightforward adjustment to set the grippers so that
they do not touch the rollers, yet give plenty of
clearance to feed sheets onto the platen.
When the arms are set properly, tighten the lower set
screw to clamp the bar and spring firmly in place.
The procedure for both presses is essentially the same,
the only real difference being the look of the gripper
bar clamp itself.
WARNING!!
- BE SURE TO CHECK ROLLER CLEARANCE!!!!
Failure to do so could cause damage to the
rollers as they roll down over the form.
Note: Since
these gripper arms are often lost, and many presses
are sold without gripper arms, and they are a very
helpful feature, we are fabricating new Gripper Arms
for the Pilot Press. Watch here for an announcement
when they are ready or contact us for details.
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Gripper
Arm Springs and locking screws
(added 10/23/17)
Gripper Arms are often found partially or fully
missing from old Pilots. If you need any of these
parts, we can help you.
To the right is a
detail photo of 3 types of locking screws found on
Pilot Presses. The image to the
left shows complete units including three gripper
springs - one made here at the Excelsior Press
Museum Restoration Facility, the others found on
presses in the shop.
Also in the photo are various screws associated with
the gripper assembly. At the top of the photo are
two of the blocks that hold the spring in place.
Beneath them are 3 larger screws from the C&P.
The wing nuts are from the feed board lock. The
square head screw locks the spring in place on the
block.
The two machine screws at the bottom are the 5/16"
and fit the common style gripper arms. The lowest
gripper arm shows a completely different style of
locking screw. These parts seem to be common between
both early series and new series C&P Pilots.
Other "cloned" Pilots may be different.
Click on either photo to see a larger, more detailed
image.
Note:
All standard Pilot gripper systems require the
installation of the (often missing) feed table
support brackets. However, our solution for that was
to put together a slightly modified design - based
upon an idea seen on the 9x13 Kelsey - to link the
gripper arm spring to a lower mount as can be seen
in the photo to the right.
This easy modification does not require the feed
table bracket to actuate the spring, nor does it
require the heavy spring made for this press by
C&P and others. The lighter spring used on this
design has plenty of force to control the gripper
arms. It is easily adjustable to allow full control
of the gripper arm angle.
Please contact Alan Runfeldt using the
email address on our
contact page
page
last updated Feb 2008 Oct 2017
Sep 2020
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