US963550A - Wrench. - Google Patents

Wrench. Download PDF


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US963550A US53763310A US1910537633A US963550A US 963550 A US963550 A US 963550A US 53763310 A US53763310 A US 53763310A US 1910537633 A US1910537633 A US 1910537633A US 963550 A US963550 A US 963550A
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Robert Earl Harshell
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Robert Earl Harshell
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    • B25B13/00Spanners; Wrenches
    • B25B13/10Spanners; Wrenches with adjustable jaws
    • B25B13/12Spanners; Wrenches with adjustable jaws the jaws being slidable


Specification of Letters Patent.
Patented July 5, 1910.
Application 1ed January 12, 1910. Serial No. 537,633.
To all whom it may concern:
Be it known that I, ROBERT EARL IIAR- SHELL, a citizen of the United States of America, residing at Georges Station, in the county of Westmoreland and State of Pennsylvania, have invented certain new and useful Improvements in Wrenches, of which the following is a specification, reference being had therein to the accompanying drawing.
This invention relates to wrenches, and the objects of my invention are to provide a wrench consisting of comparatively few parts that can be easily and quickly assembled to provide a strong and durable structure, and to provide 'a wrench that can be used either as a nut wrench or pipe wrench.
Further objects of my invention are to furnish a nut wrench with a reversible lever that will serve functionally as a handle in manipulating the wrench when rotating a nut or similar object, and to provide a wrench that is simple in construction, inexpensive to manufacture and highly eilicient for variouspurposes.
These and such other objects as may hereinafter appear are attained by the novel construction, combination and arrangement of parts to be hereinafter specifically described and then claimed.
Reference will now be had to the drawing forming a part of this specification, where- 1n:-
Figure 1 is a longitudinal sectional view of a portion of a wrench constructed in accordance with this invention. Fig. 2 is a cross sectional view of the same. Fig. 3 is a side elevation of the shank detached and forming a part of the wrench. Fig. 4 is a similar View of a lever or handle detached and forming a part of the wrench, and Fig. 5 is a side elevation of the complete wrench.
In the accompanying drawings the reference numeral 1 denotes a shank rectangular in cross section and having the ends thereof provided with integral or ixed gripping jaws 2 having confronting right angularlydisposed gripping surfaces or faces 3. The outer and inner edges of the shank 1 are toothed, as at 4 and 5, respectively, for a purpose that will hereinafter appear.
Mounted upon the shank 1 is an adjustable clamping member consisting of a body portion 6 having its inner face provided with a plurality of teeth 9 adapted to engage the teeth 5 on the inner edge of the shank 1. Formed integral with the body portion 6 and projecting therefrom in a direction so as to straddle the sides of the shank 1 is a pair of arms 7 of a length as to project beyond the teeth 4 on the outer edge of the shank 1. The body portion 6 at its outer face is provided with a slot or groove 8 constituting a nut socket and which extends at right angles with respect to the direction in which the shank 1 extends.
10 denotes a lever or handle which has one end extending between the arms 7, the said end being apertured as at 11 and extending through the aperture 11 and connected to the arms 7 is a pivot pin 12 employed for retaining the end of the lever between the arms 7. The opposite end of the lever or handle is bifurcated to provide gripping jaws 13, having the curved faces thereof provided with teeth 14. The lever or handle 10 adjacent to the pivoted end thereof is provided with enlargements 15 terminating in teeth 16, and these teeth are adapted to engage the teeth 4 of the shank 1.
The gripping jaws 13 can be used for rotating a pipe or structure having cylindrical surfaces, and since the adjustable clamping member can be moved relatively to the jaws 2, nuts of various sizes can be gripped. The grooved outer face of the adjustable clamping member serves functionally as a Spanner wrench for a certain size of nut, and with either the adjustable clamping member in engagement with a nut or the jaws 2 thereof, the lever or handle 10 will provide suiiicient leverage to operate the wrench.
There is suiiicient space for the shank 1 within the adjustable member to permit of it being easily and quickly adjusted when the handle or lever 10 is swung out of engage-- ment therewith.
The wrench in its entirety is made of strong and durable metal and can be used by machinists or other artisans.
I-Iaving now described my invention what I claim as new, is:
' 1. A wrench comprising a shank, jaws carried by the ends thereof4 and having confronting gripping surfaces, teeth carried by the inner and outer edges of said shank, a movable clamping member slidably mounted upon said shank and having its inner face provided with teeth engaging the teeth on the inner face of the shank, arms projecting from said member and straddling said shank,
a pivoted lever `or handle arranged betweenY said arms and having enlargements terminating in teeth adapted to engage the teeth upon the outer edge of said shank.
Q. A wrench comprising a toothed shank, a jaw' projecting from each end of the shank,
Y a movable clamping member arranged upon the shank and'coperating with said ]aws,
`and a lever pivotally mounted'in said member and having. opp'ositely` disposed enlargements terminating in teeth adapted to engage said toothed shank forsmaintaining said member in its adjusted position. 3. A wrench comprising a toothed shank.
a jaw projectingfrom each end ofthe shank wand opposing each other,-amovable clampoperating with said jaws, and a lever havingk ing member arranged upon the shank and coone end pivotally connected with said member andfurther having oppositely VdisposedV enlargements terminating in teeth adapted to engage saidrtoothed .shank to prevent shifting movement of'V said. member, said confronting gripping facesa movable clamp l Venlargements in proXimityto thepivoted end of said lever.
, 4. A wrench` comprisingV a toothed shank, jaws'carried by the ends thereof and'having ing member arranged upon said shank and coperating, with said jawsand further provided with teeth adapted'to engage certain of the teeth of said shank,.. and ra ever pivotally mounted Yin said member and having opposite disposed enlargements yterminating in teeth adapted to engage cert-ain of the teeth ofthe shank to prevent shifting of said member, the teeth of said lever arranged in proximity to the pivot thereof.
4'In testimony whereof I affix my signature in the presence of two witnesses.
US53763310A 1910-01-12 1910-01-12 Wrench. Expired - Lifetime US963550A (en)

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