Wrench. Page: 2 of 3
[1], 2 p. : ill. ; 23 cm.View a full description of this patent.
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UNITED STATES PATENT OFFICE.
JOHN F. TINER, OF SUTHERLAND SPRINGS, TEXAS, ASSIGNOR OF THREE-
EIGHITIIS TO ELLA J. NEWTON, OF AUSTIN, TEXAS.
WRENCH.
SPECIFICATION forming part of Letters Patent No. 573,313, dated December 15, 1896.
Application filed April 14, 1896. Serial No. 587,529. (No model.)'co all whom it nCay concern:
Be it knownthatI, JOHN F. TINER, a citizen
of the United States, and a resident of Suth-
erland Springs, in the county of Wilson and
5 State of Texas, have invented certain new
and useful Improvements in Wrenches; and
I do declare the following to be a full, clear,
and exact description of the invention, such
as will enable others skilled in the art to which
io it appertains to make and use the same, ref-
erence being had to the accompanying draw-
ings, and to letters of reference marked there-
on, which form a part of this specification.
Figure 1 is a side view of a wrench embody-
I5 ing my invention, its application to different
sizes of nuts being indicated by dotted lines;
and Fig. 2 is a perspective view of the jaw
portions of the wrench.
This invention is designed to provide a nut-
20 wrench of improved character; and it consists
in the novel construction and combination
of parts, all as hereinafter described, and
pointed out in the appended claim.
Referring to the accompanying drawings,
25 the letters A and B designate the two interpiv-
oted bars or members of which and a spring
C the wrench consists. Each of said bars is
somewhat enlarged and offset at its pivotal
portion a, which is about midway of its length,
30 the offset being sufficient to bring the inner
edge of the handle portion of each member
substantially into line with the inner face of
the jaw portion of the same member. The
jaw portion of the member B is straight from
35 its pivoted portion a to a point d, at which it
is bent outward in its own plane, at an oblique
angle, to form the jaw proper. The inner
face of this jaw is formed with a series of
steps or offset shoulders f, which are at sub-
40 stantially right angles to the plane of the
straight portion from a to d. The said shoul-
ders may, however, be at slightly acute angles
to said straight portion, and the term "at
substantially right angles" may be so under-
45 stood. The jaw portion of the member A is
also straight from its pivoted portion to the
point g, which is nearly opposite but slightly
beyond the point d. Beyond the point g it
is bent inwardly into substantially parallel
50 relation to the opposite jaw. At its outer
end it is formed with an inward projection h,
the shoulder h' of which is at substantiallyright angles to the inner face of the jaw and
substantially parallel with the transverse
faces of the shoulders f of the opposite jaw. 55
It will be observed, therefore, that when the
wrench is in operation the point x of said pro-
jection or shoulder is nearer to the hand of
the operator than is the angle at y, which
catches the corner of the nut, and that it will 6o
be consequently impossible for the wrench to
slip off the nut in turning.
The spring C, which is for the purpose of
normally holding the jaws open, is interposed
between the two jaw portions, its outer end 65
being fast to the member A, while its inner
or free end is secured to the member B.
The wrench is always ready for use without
any adjustment whatever and will fit all sizes
of nuts. The operator has simply to, catch 70
the nut in the angle y and grip the handles,
when the opposite corner of the nut will be
caught by the corresponding shoulderf. In-
asmuch as the longer or connecting walls of
these shoulders are substantially parallel 75
with the face of the opposite jaw the grip
upon the nut is perfect. The pivot being
about midway the length of the members the
two jaws have a nearly parallel movement,
while at the same time the operator has am- 80
ple leverage, increased largely by the angle
of the jaws.
The construction as above described is such
that as the jaw portions are closed the longer
or longitudinal walls of the offsets f come 85
successively into substantially parallel rela-
tion to the face of the opposite jaw portion
adjacent to the claw projection h, while their
transverse or shorter faces come into similar
relation to the inner face h' of saidprojection. 90o
The drawings show the wrench in position
for turning the nut on. To take a nut off,
the wrench may be turned over to reverse its
action.
Owing to the character of the bite or grip 95
which the wrench takes of the nut it will not
deface the corners.
Having thus described my invention, what
I claim as new, and desire to secure by Letters
Patent, is- oo0
In a wrench, the two interpivoted members
A and B, having elongated shanks forward of
their pivotal point, the shank of one member
terminatingin an inwardly-bent jaw portion
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Tiner, John F. Wrench., patent, December 15, 1896; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth174460/m1/2/: accessed June 30, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.