Improvements in Wrenches.
Year: 1892

page_text: Date of Application, 11th Mar., 1892-Accepted, 16th Apr., 1892
COMPLETE SPECIFICATION.
Improvements in Wrenches.
1, PETER GENDRON of 1413 Walnut Street, in the City of Toledo, County of
Lucas and State of Ohio, United States of America, Manufacturer, do hereby
declare the nature of this invention and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following
statement:
This invention relates to new and useful improvements in wrenches, and the
invention consists in the peculiar construction of an attachment arranged at the
rear face of the jaws, especially designed for use in adjoining the spoke nipples of
bicycles.
The invention further consists in the peculiar construction, arrangement and
combination of the various parts all as more fully hereinafter described.
In the drawings,
Fig. 1 is an elevation of a wrench embodying my invention, showing the jaws
separated.
Fig. 2 is a similar view showing the jaws closed and partly in section.
Fig. 3 is a rear elevation of the jaws thereof.
Fig. 4 is a detached perspective view of the rocking nipple clamp.
A is the stationary jaw. B is the shank secured thereto having at its lower end
the reduced portion C.
D is a movable jaw having formed integral therewith a sleeve or socket E which
is longitudinally apertured to receive the shank B.
F is a handle having the annular head & formed at one end, which is secured to
the body portion of the handle by means of the neck H.
I are T-shaped bearings formed in both sides of the socket E at the lower end,
in which the head and neck G H are adapted to be engaged.
The movable jaw D is made to approach or recede from the stationary jaw by
turning the handle F.
To adapt a wrench of this kind to use for turning the nipples of spokes or other
round articles I extend the jaws A and D to the rear of the shank B and form in
each rear extension clamping devices, which will not interfere with the operation
of the wrench for ordinary purposes and will enable me to clamp such nipples in
place firmly and turn them in adjusting the bicycle spokes.
To this end I form a gain or notch a upon the inovable jaw D in rear of the
shank, this gain being of a depth sufficient to allow the serrated eccentric head / to
lie flush with the upper face of the stationary jaw D.
This head is secured to the movable jaw by means of a cylindrical extension c,
preferably extending the entire length of the head engaging in a corresponding
shaped cylindrical recess d formed in the movable jaw.
The head has a limited oscillating movement upon the cylindrical shank c.
e is a notched grip formed opposite the head b in the rearward extension of the
stationary jaw A. Any suitable means may be employed for securing the
cylindrical extension c in the recess d, the means which I preferably employ
consist of forming a notch in the cylindrical extension c and forcing the end of
the ping therein.
To use the wrench, the handle C is rotated to move the jaw D until the spindle
is gripped between the jaws e and the head b, when by moving the handle to the
right, the eccentric serrated face of the head will tend to tightly clamp the spindle
between the jaws and turn the same, while movement in the opposite direction will
rock the head b in the opposite direction and allow the jaws to slip in returning

page_text: the wrench to a position whereby a new hold may be taken to again turn up.
the spindle.
In case the wrench is desired to be used in the ordinary manner, employing the
usual jaws, the fact that the head is below or on a plane with the upper surface
of the stationary jaw, permits two of the jaws to be tightly clamped together, or
could clamp the smallest article between them.
The jaw A extends beyond the plane of the head D, so that it may readily be
used as a hammer without damaging the nipple clamp. The head of the nipple
clamp is also preferably of just sufficient size to be held against movement when
the two jaws are closed, so that in hammering it cannot be moved, and thus be
broken.
By making the head the width of the gain or nearly so, it works more
positively, and by connecting the cylindrical extension immediately to the head
I obtain a rocking movement on the arc of a very small circle which gives me a
quick grip and a quick release.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :
1. The combination in a wrench of the stationary and movable jaws, extending
on both sides of the central stem, of a gain or recess formed in one of the jaws and
in rear of the shank, an eccentric head pivoted in said recess and a notched grip
formed in the other jaw opposite said head.
2. The combination in a wrench of the stationary and movable jaws extending
on both sides of the shank, with means for actuating the movable jaw, of a head b
having a serrated eccentric face, the cylindrical extension e, a gain or recess a
formed in the movable jaw, a cylindrical recess d formed in said gain, and in which
the extension is adapted to engage, and a notched grip e in the stationary jaw
opposite said head.
C
3. The combination in a wrench of the stationary and movable jaws extending
on both sides of the central stem, the stationary jaw extending beyond the movable
jaw, of a gain or recess formed in the rearward extension of the movable jaw, an
eccentric serrated gripping jaw, a cylindrical extension formed immediately upon
said jaw, and journaled in a recess in the movable jaw, and a notched grip formed
in the rearward extension of the stationary jaw.
4. The combination in a wrench, of the two jaws extending on both sides of the
stem, of an auxiliary gripping jaw journaled in a gain on the rearward extension
of the movable jaw and arranged to allow the two jaws to close, and to clamp the
head against movement in this closed position.
Dated this 13th day of February 1899
PETER
GENDRON.
Haseltine, Lake & Co.,
45, Sonthampton Buildings, London, Agents for the Applicant.