Wrench Page: 2 of 3
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Patented February 21, 1905.
UNITED
STrrES
PATENT OFFICE.
ARTHUR G. HUNTER, OF ELMVIEW, TEXAS.
WRENCH.
SPECIFICATION forming part of Letters Patent No. 783,278, dated February 21, 1905.
Application filed November 17, 1904. Serial No. 233,192.To all whom it may concern:
Be it known that I, ARTHUR G. HUNTER, a
citizen of the United States, residing at Elm-
view, in the county of Grayson and State of
5 Texas, have invented new and useful Improve-
ments in Wrenches, of which the following is
a specification.
This invention relates to wrenches, and has
for its objects-to produce a simple inexpensive
lo device of this character which may be readily
manipulated with one hand and accurately ad-
justed to the desired size and one wherein the
movable jaw after adjustment will be securely
locked against movement.
15 A further object of the invention is to pro-
vide a wrench wherein the parts may be readily
disconnected to permit of new parts being sub-
stituted for those that become worn and one
wherein the movable jaw and its-locking mem-
20 ber will be guided in their movements.
.With these and other objects in view the
invention comprises the novel features of con-
struction and combination of parts more fully
hereinafter described.
25 In the accompanying drawings, Figure 1 is
a side elevation of a wrench embodying the in-
vention. Fig. 2 is a detail longitudinal sec-
tion centrally through the sleeve or casing and
adjacent parts. Fig. 3 is a cross-section taken
30 on the line 3 3 of Fig. 2.
Referring to the drawings, 1 designates a bar
or shank carrying at its forward end a fixed
head or jaw 2 and having a rear reduced por-
tion 3 adapted for the reception of a handle
35 4, there being formed at the juncture of the
shank and its reduced portion 3 a shoulder 5
for a purpose which will hereinafter appear,
the terminal of the portion 3 being threaded,
as at 6, for the reception of a fastening mem-
40 ber or nut 7, which bears upon the rear end of
the handle 4 to secure the latter in place.
Arranged for sliding movement longitudi-
nally of the shank 1 is a movable jaw 8, adapted
to cooperate with the jaw 2 for engaging a
45 nut or other body, there being pivotally con-
nected to the jaw 8 by means of a pintle 9 the
forward end of a rigid element or link 10, pro-
vided at its rear end with a longitudinally-dis-
posed slot 11, in which is pivoted a locking
50 member or dog 12. The dog 12 is providedat its outer end with a substantially C-shaped
thumb-piece 13 and has its inner end beveled
or inclined to produce an engaging portion or
tooth 14, adapted for interlocking engagement
with teeth 15, provided on a bar or plate 16, 55
seated and secured within a recess 17, formed
within the adjacent- longitudinal edge of the
shank 1. Attention is directed to the fact that
the teeth on the bar 15 are spaced in the direc-
tion of the length of the shank and that owing 6o
to the bar 16 being seated in the recess the
outer ends of the teeth are in a plane common
to that of the adjacent edge of the shank.
Seated upon the shank 1 is a tubular sleeve
or casing 18, having a longitudinal opening 65
for the reception of the shank and provided
at the rear end of said opening with an in-
ternal collar or abutment 19, adapted to con-
tact with the shoulder 5 for fixing the casing
against forward movement upon the shank, 70
there being formed at the rear terminal of
the casing a socket or recess 20, in which the
forward end of the handle 4 seats, whereby
when the nut 7 is in position the sleeve will
be fixed against rearward movement on the 75
shank. The sleeve, which is of greater width
than the shank, is provided on the inner
faces of its side walls with opposed longi-
tudinal ribs or flanges 21, adapted for engage-
ment with the adjacentedge of the shank, and, 80
further, with longitudinal ribs or flanges 22,
projecting inward from the side walls of the
casing at the outer edges of the latter, thus to t
produce a longitudinal slot or guideway 23 for
the reception of the locking member 1-2. The 85
outer flanges 22 areappropriately spaced from
the inner flanges 21 in a direction transversely
of the casing 18 and, as illustrated in Fig. 3,
produce a chamber 23', extending longitudi-
nally of the casing for the reception of the 90
link 10 during its longitudinal movements
for actuating the jaw 8.
The link 10 has formed therein an internal
longitudinally-extending socket 24 for the re-
ception of a plunger 25, on which is disposed 95
a pressure-spring 26, adapted for moving the
locking member 12 to engaging position, the
rear end of the plunger 25 being seated in a
suitable socket formed in the locking mem-
ber, as seen at 27 in Fig. 2. 100No. 783,278.
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Hunter, Arthur G. Wrench, patent, February 21, 1905; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth514287/m1/2/?rotate=270: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.