Wrench Page: 3 of 3
[1], 2 p. : ill. ; 23 cm.View a full description of this patent.
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9 9,167
tained by turning the knurled head 10, thus
causing the latter to be rotated on the screw
9 thereby moving the movable jaw 6 away
from the carriage, thus enabling the said
5 movable jaw to accurately grip the said nit,
thereby enabling the fine adjustment of the
wrench.
It will be noted that by reason of the
formation of the guide grooves 12 in op-
10 polite sides of the sleeve 11 it prevents any
possibility of the disengagement of the
locking member with the shank, . for the
reason that the yoke 15 is held securely on
the sleeve by having the arms engaged in
15 the grooves in the latter.
What is claimed is:
The combination of a wrench including a
shank having a fixed jaw and provided with
a rack, a movable jaw slidable on said shank,
20 a carriage having a central opening slidably
receiving said. shank and having guide
grooves m opposite sides and one end there-
of, the said groove in the end of the car-
riage intersecting its central opening, a yokeembracing the carriage and slidably engaged 25
in the side grooves therein,. a toothed lock-
ing member pivoted in the yoke and work-
ing in the said end groove for engaging the
rack, an adjusting screw integrally formed
with the carriage, said movable jaw being 30
formed with an opening adapted to receive
said screw and having a recess dividing the
path of said opening, a knurled nut for the
recess and adapted to engage with the screw
thereby connecting said movable jaw and 35
carriage. together, said marriage and yoke
having alining counter sockets, and an ex-
pansion spring interposed between the yoke
and the carriage and engaged in said sockets
for sustaining the locking member in en- 40
gagement with the rack.
In testimony whereof I affix my signature
in presence of two witnesses.
ARTHUR G. HUNTER.
Witnesses:
MURRAY C. CAUDLE,
ALBERT DUKE.2
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Hunter, Arthur G. Wrench, patent, July 25, 1911; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth509664/m1/3/: accessed July 17, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.