Improvements in Nut Locks.
Year: 1897

page_text: Date of Application, 24th June, 1897-Accepted, 21st Aug., 1897
Improvements in Nut Locks.
I, MILFORD CYRUS HOPPER, Carpenter, of No. 39 Sturgis Street, Woburn, in 'the'
County of Middlesex, and State of Massachusetts, one of the United States of America,
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 certain improvements in nut locks, the object being to
provide, in a sinple and inexpensive manner, a locking device wnich is applicable to
nuts and bolts of various characters.
The invention comprises certain novel features of construction and arrangement of
parts, whereby it is made simpler and better adapted for the purposes for which it is
intended, and whereby other important advantages are attained, as will be hereinafter
fully described and specifically defined in the appended claims.
In the accompanying drawing:
Figure 1 represents a perspective view of a bolt and nut lock constructed in
accordance with my invention.
Figure 2 is a similar view showing the locking device connected with the bolt in a
somewhat different manner.
Figure 3 is a perspective view of the nut removed, showing the locking device as it
will appear before engaging with the bolt, and
Figure 4 is a sectional view taken on the line 4-4 of Figure 1.
Similar reference numerals indicate corresponding parts in all figures of the
drawing.
1 designates the bolt, which may be of any desired size, having its end threaded as
usual to receive upon it the nut 2.
The end of the bolt is transversely grooved, and the nut is provided with a locking
device which consists of a wire 3, which is retained in an opening within the nut,
preferably at one of the corners thereof. The opening in the nut, at the inner side
thereof, is preferably splayed or chamfered, and the end of the wire is beaten to
conform to the shape of the opening and thus prevent the removal of the wire from
the nut. It is obvious, however, that the end of the wire may be provided with a
head that will conform to the shape of this opening, thus doing away. with the
necessity of beating, as just described.
The wire 3, after the nut has been properly adjusted upon the bolt, is bent over 80
as to enter the groove in the end of the bolt, which effectually prevents any possibility
of its removal therefrom, until the wire is again withdrawn from engagement with
the groove. The wire being of pliable nature can be bent and straightened a great
number of times before it will break, so that the nut can be removed when necessary
and replaced again.
In Figure 2, I have shown the wire 3 as being bent over upon the nut, and along
its edge toward the center where it abruptly turns and enters the groove in the
bolt.
The wire, as above mentioned, being of a pliable nature will readily permit of its
being bent in any direction, so as to bring its extremity into proper relative position
with the groove in the bolt as under certain conditions, it will be found impossible to

page_text: bring the wire in a direct line with the groove in the bolt, as will be readily
understood.
It will thus be seen, that my invention provides in a simple and inexpensive
manner, a locking device which may be applied to various uses, and the locking
device can be quickly and easily secured to the nut by simply boring a hole and
inserting the wire therein, and filling a groove in the end of the bolt, thus making it
applicable to the nuts and bolts now in use.
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 locking device for nuts, comprising a wire secured within an opening in the nut,
the inner end of which is splayed or chamfered to retain therein one end of the said
wire, the other end being adapted to engage a groove in the end of the bolt,
substantially as described.