Harrington & Richardson Model 922 BruceVarner.com
Harrington & Richardson Model 922 (Pre-1940)
4th Variation (Birds Head)
Internal Function (Continued)
--.22 Caliber, 9 Shot Revolver--
Image #4 (Slave pins in place to allow external installation of the firing mechanism)
Here the internal firing mechanism is in its normal hammer down,
carry position.
Page 3 of Harrington &
Richardson Model 922 (Pre-1940) Revolver
Back to Page 1 of Harrington &
Richardson Model 922 (Pre-1940) Revolver
Image #5
Image #6
With this revolver several peculiarities make a further
functionality explanation necessary.
As
shown in the above images, the "Lifter" pushes the hammer when
the trigger is squeezed. Then releases hammer just before
it would otherwise be caught by the sear.
The
cylinder stop or lock is machined into the top side of the trigger.
This design results in the cylinder stop not even sticking
through the frame and the cylinder NOT
being locked into place in the normal hammer down position. The
friction pin is supposed to provide resistance to the cylinder
turning too freely. The result is that the
cylinder can be easily turned at all other times! Worse,
the cylinder is machined to stop the cylinder Lock only from
over travel! More explanation later.
Image #7
The sear is separate from either hammer or trigger and is actually exposed
behind the trigger. Squeezing the trigger when the revolver is in the
cocked position results in the back of the trigger pushing the
sear to disengage from the hammer.
Positioning of the sear during assembly seems to be a difficult
trick. I use a very short slave pin which keeps the sear and its
spring in place on the trigger guard, but still allows the guard to be
installed into the frame. The guns sear pin can then be pushed
through, replacing this small slave pin. All while holding the sear in
place.
Image #8
A "Friction Pin" and
its spring falls out of this hole when the front of the trigger guard is
removed. Careful not to lose these pieces, which must be replaced
correctly during assembly. The friction pin applies upward pressure
against the bottom front of the cylinder.
Image #9
