Improvement In Gun-Locks. Page: 2 of 2
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UNITED STATES PATENT OFFICE.
JAMES MADISON GRISHAM, OF TOTTASH; TEXAS.
IMPROVEMENT IN GUN-LOCKS.
Specification forming part of Letters Patent No. 152,990, dated Jnly 14, 1874; appliestion filed
March 7, 1874.To all wheom it may concern:
Be it known that I, JAMEs M. Grsuian, of
Towash, in the county of Hill and State of
Texas, have invented a new and useful Im-
provement in Gnn-Lock, of which the follow-
ing is a specification:
Figure 1 is a view of the inner side of my
improved gun-lock. Fig. 2 is a bottom view
of the same, the hammer being shown in sec-
tion. Fig. 3 is a detail view of the outer side
of the lower part of the hammer.
Similar letters of reference indicate corre-
sponding parts.
The invention will first be fully described,
and then pointed out in the claim.
A represents the hammer, which is secured
upon the hammer-pin B by a small hand-not,
C', so that it may be readily detached, as re-
quired. The hammer-pin i3 passes through
the lock-plate D, and to its inner end is se-
cured a wheel or tumbler, E, in the periphery
of which is formed a recess to receive the
T-catch F, the shank of which is pivoted in
a slot in the periphery of said wheel E. G is
the mainspring, the free end of which is
notched and made slightly hook-shaped to
hook upon the T-catch F. The other end of
the spring G is inserted in a hole in the rear
end of the lock-plate D, and has a point
formed upon it, which projects to serve as a
dowel-pil for receiving the rear end of the
said lock-plate in place. Upon the lower side
of the whcel or tumbler E are formed two
notches to receive the engaging end of the
sear II, to the middle part of which is attacheda screw-pivot, which screws into a screw-hole
formed in the plate D. Upon the other or
rear end of the sear II is formed an arm, with
which the trigger is connected, which trigger
is not shown in the drawings. I is a spring,
the free end of which bears against the sear
H, to hold its engaging end against the wheel
E, to catch upon the notches of the same and
hold the ianumner at hlalf-cock and cocked. The
other end of the spring I is inserted in a, hole
in the rear part of the lock plate D, as shown
in Figs. 1 and 2. The forward end of the
lock-plate D has a hole formed in it to receive
the screw, by which it is secured in place.
To take the lock to pieces the springs G I
are detached, the uat C screwed off, the ham-
mer A and wheel E are detached, and the
sear H is screwed off.
To put the lock together the sear II is
screwed on, the wheel E and hammer A are
attached, the nut O screwed on, and he springs
I G attached; the lock being thus taken apart
and put together without the use of a screw--
driver.
Having thus described my invention, I claim
as new and desire to secure by Letters Pat-
ent-
The mainspring 0, extended through the
plate D, and forming, with its rear end, a
dowel-pin therefor, as set forth.
JAMES MADISON GRISHA.L
Witnesses:
1). T. BurTON,
W. T. MooiRE.
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Grisham, James Madison. Improvement In Gun-Locks., patent, July 14, 1874; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth166979/m1/2/?rotate=90: accessed June 29, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.