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Patented January 17, 1905.
UNITED
STATES
PATENT OFFICE.
SAMUEL C. ANDERSON, OF WHITEWRIGHT, TEXAS.
WRENCH.
SPECIFICATION forming part of Letters Patent No. 780,257, dated January 17, 1905.
Application filed May 14, 1904. Serial No. 207,983.To all whoJ'h it imcuy concern:
Be it known that I, SAMUEL C. ANDERSON,
a citizen of the United States, residing at
Whitewright, in the county of Grayson and
5 State of Texas, have invented a new and use-
ful Wrench, of which the following is a speci-
. fication.
This invention relates to wrenches, and has
for its object to provide an improved adjust-
10 able-jaw arrangement wherein the movable
jaw may be conveniently adjusted with respect
to the stationary jaw and be held rigidly af-
ter locked in an adjusted position, so as to
prevent the jaw from working loose during
15 the manipulation of the wrench.
In addition to the usual adjustment of the
movable jaw toward and away from the fixed
jaw in substantial parallelism therewith it is
also designed to provide for a tilting adjust-
20 ment of the jaw, so as to accommodate the
wrench to pipes as well as for use upon nuts
and the like.
With these and other objects in view the
present invention consists in the combination
25 and arrangement of parts, is will be herein-
after more fully described, shown in the ac-
companying drawings, and particularly point-
ed out in the appended claims, it being un-
derstood that changes in the form, propor-
30 tion, size, and minor details may be made
within the scope of the claims without depart-
ing from the spirit or sacrificing any of the
advantages of the invention.
In the drawings, Figure 1.is a perspective
35 view of a wrench embodying the features of
the present invention. Fig. 2 is a fragmen-
tary perspective view of the stationary jaw to
show the casing which is carried thereby.
Fig. 3 is a detail perspective view of the mov-
40 able jaw.
Like characters of reference designate cor-
responding parts in each and every figure of
the drawings.
Referring to the accompanying drawings, 1
45 designates the shank or stock of the present
wrench, which terminates at one end in an off-
set handle 2 and at its opposite end in a fixed
jaw 3, disposed in longitudinal alinement with
the shank and having a serrated inner face.
5o At the inner end of the fixed jaw there is abracket 4, rigidly carried by the shank and
projected laterally at the inner face of the
jaw. This bracket is provided with a longi-
tudinal slot 5, disposed in the plane of the
shank and intersecting the front and rear 55
edges of the bracket. The opposite sides of
the bracket are provided with openings 6, the
front longitudinal edges of which are pro-
vided with a series of registering notches 7.
The movable jaw of the wrench comprises 6o
a shank 8, which is movably received within
the slot of the bracket with its forward end
portion 9 projected beyond the bracket and
constituting the movable head of the jaw,
which is serrated upon its inner edge re- 65
versely with respect to the serration of the
fixed jaw, while the rear end of the shank
terminates in a reduced stud or projection 10.
At the base or inner end of the jaw 9 pivot
pins or projections 11 extend laterally out- 70
ward therefrom and work in the opening 6
for engagement with the seats formed by the
notches 7 in the front walls of. the openings.
These pivot-pins are preferably circular in
cross-section, and the seats or notches 7 are 75
rounded or concaved in order that the pivot-
pins may rock or rotate therein to permit of
a tiltable adjustment of the movable jaw. It
will be understood that the pins 11 are rig-
idly carried by the movable jaw and may be 8o
engaged with any of the notches or seats 7,
thereby to provide for the adjustment of the.
movable jaw bodily toward and away from the
fixed jaw.
To maintain the movable jaw in a rigid con- 85
dition after being adjusted, there is a swing-
ing keeper 12 in the nature of a link having
its inner end forked or bifurcated, as at 13,
so as to straddle the shank 1, to which it is
hinged. upon pivot - pins 14, carried by the 90
shank, whereby the keeper is capable of
swinging movements toward and away from
the rear end of the movable jaw. A longitu-
dinal series of openings 15 is formed in the
keeper, so as to constitute a succession of 95
sockets or seats for the individual reception
of the stud or projection 10 at the rear end of
the movable jaw.
In order that the swinging keeper may be
held in rigid engagement with the movable IooNo. 780,257.
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Anderson, Samuel C. Wrench, patent, January 17, 1905; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth511649/m1/2/: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.