Year: 1898

page_text: I, GEORGE RADEL, Junior, of Napoleon, Henry County, Ohio, U.S.A., Inventor,
do hereby declare the nature of this invention to be as follows:-
The object of this invention is to provide a lock-nut which, although it will
not become loosened by vibration is capable of being readily removed when
required without injury to it or to the bolt.
By this invention one face of the nut has an aperture which extends into the
usual threaded bolt aperture, and has a shoulder formed at its lower end by
reason of its reduced diameter.
A stud fits slidingly in the aperture, rests upon the shoulder, and has a pro-
jection on its lower end extending through the reduced part of the aperture
into longitudinal grooves on the screw-threaded portion of the bolt. This pro-
jection is bevelled so that when the nut is rotated in one direction it will be
raised as it passes over one edge of each groove. When however, the nut tends
to turn in the opposite direction one side of a groove will abut against the ver-
tical face of the projection and prevent rotation of the nut. A spring, in com-
pression between the stud and a screw-threaded stud closing the aperture, tends
to keep the sliding stud pressed downwards.
The stud with its projection may be raised, when required, by a screw-threaded
stud passing through a face of the nut, preferably at right angles to the sliding
stud, and having a pointed end which enters an aperture, in contact with its
upper edge, and acts as a wedge to raise the sliding stud as it advances towards
it and to hold it permanently raised. The outer end of the screw-threaded
pointed stud is normally flush with the face of the nut, is nicked and is operated
by a screw driver.
In an alternative form, the sliding block, formed with the bevelled projec-
tion, is capable of being raised by a lever pivoted in a bracket depending from
a plate screwed onto two faces of the nut, covering the aperture containing the
sliding block, and provided with a screw-threaded stud bearing upon one end
of the lever to raise its other end which engages under a projection on the
sliding block.
The lever is contained in a recess extending partly around the
bolt aperture.
1000

page_text: I, GEORGE RADEL, Junior, of Napoleon, Henry County, Ohio, U.S.A., Inventor,
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:-
The object of this invention is to provide a lock-nut which, although it will
not become loosened by vibration is capable of being readily removed when
required without injury to it or to the bolt.
In the drawings hereunto annexed, Fig. 1 shews the front face of a nut in
part section illustrating one form of my invention, and Fig. 2 is a side eleva-
tion, in part section, thereof. Fig. 3 shews the front face of a nut shewing an
alternative form of my invention, Fig. 4 is a view of a part thereof, and Fig. 5
an end view thereof with the part shown in Fig. 4 removed. Fig. 6 shews the
invention applied to a square nut, and an alternative method of securing the
parts together.
The nut 1 is provided with two screw-threaded apertures 2,3, in adjacenti
faces of the nut, and meeting at their inner extremities as shewn.
The aperture 2 extends into the bore of the nut as shewn, and is fitted with
a slidable stud 4 formed with a shoulder 5 and a bevelled point 6 adapted to
engage a longitudinal groove or grooves 7 on the bolt 8. A spring 9 on the
upper end of the stud, and retained in place by the screw-threaded stud 10,
tends to keep the stud 4 constantly pressed down.
The shoulder 5 is engaged by the point of a screw-threaded stud 11 adjusted
in the aperture 3.
It will be understood, that when the nut is turned to the right, the stud 4
will recede as it passes the grooves 7, but when the nut is turned-by vibration
or otherwise in the opposite direction, the stud will resist rotation of the nut
independently of the bolt. In order to remove the bolt, the stud 11 is forced
inwardly by a screw driver applied to the nick 12, and the shoulder 5, riding
up on the point 13 of the stud 11, causes the stud 4 to recede until its point
is clear of the circumference of the bolt 8.
i. In Figs. 3, 4, and 5, I have shewn the nut formed with an angular recess 14,
and a part circular opening 15 formed with a shoulder 16 to retain the stud 4
and spring 9, and opening into the recess 14 as shewn clearly at 17, Fig. 5.
A metal strap 18 is fitted to adjacent sides of the nut, and secured, either by
screws, 19, or rivets 20 passed entirely through the nut, as shewn in Fig. 6.
The strap 18 serves to keep the spring 9 and stud 4 in its seat, and is formed
with a bracket 21 comprising a solid portion 22 and ears 23. A lever 24 is
pivoted between the ears 23, and has one end resting beneath the shoulder 5
of the stud 4, and its other end resting on the inner extremity of the adjusting
stud 11, which, in this form of the invention, is fitted in the solid portion 22.
The action of the nut and the method of removing it is the same as that
described with reference to Figs. 1 and 2; but it will be understood that the
stud 11 acts on one end of the lever 24 to raise the other end and the stud 4:
instead of acting thereon direct as before-described.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is―
A
A 1 1
nut haring a Brew-threaded aperture in tow of

page_text: its adjacent faces, said apertures meeting at their inner extremities and one of
said apertures extending into the bore of the nut; a slidable stud having a
shoulder near its lower end, surmounted by a spiral spring, and retained in
place by a screw-threaded stud, in one aperture; and a screw-threaded adjust-
ment stud in the other aperture; all arranged and adapted to operate substan-
tially as hereinbefore set forth and illustrated in the drawings hereunto attached.
(2) A lock-nut, comprising a nut having an angular recess in one of its faces
and a part circular recess adjacent to and opening into said angular recess and
extending into the bore of the nut, a shoulder in said recess, a movable stud in
said recess having its inner end projecting into the bore of the nut, a spring
resting upon said stud, a strap secured to two or more adjacent faces of the nut
by screws or rivets, a bracket on said strap, a lever pivoted in the bracket, and
an adjustment screw in said bracket adapted to raise the removable stud afore-
mentioned, all substantially as and adapted to operate as herein before described
and illustrated in the drawings hereunto annexed.
Dated this 10th day of November 1898
R. RAINSFORD,
Agent for Applicant.