Year: 1888

page_text: 1, LUCIEN SURPRENANT, of Putnam in the County of Windham and State of
Connecticut, United States of America, mechanic, 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 a device for locking and retaining bolt-nuts in position upon
their bolts, so as to prevent the nuts from being worked loose by constant jarring and
shaking which they may be subjected to when used, for example, upon machinery
or railway-rails.
The objects of my invention are to provide a durable nut-lock which is adapted to
lock a set of nuts and which may be placed under control of an ordinary lock
and key.
To the aforesaid purposes my invention consists, essentially, in the certain combina-
tions set forth in the claim at the close of this specification and comprising the following
mechanical features—namely, a pair of hinged frames or members cut away to receive
the bolts, and provided upon their meeting faces with seats appropriate to receive
the respective transverse halves of the bolt nuts, means for locking the said members
together, the bolts, and the bolt-nuts.
In order that my invention may be fully understood, I have illustrated in the
accompanying drawings and will proceed to describe, the best form thereof so far
devised by me with the knowledge that the same may be somewhat modified, as shewn
in the alternative forms hereinafter referred to, without, however, making a substantial
departure from the spirit of the invention.
In the accompanying drawings, Fig. 1 is a side view of my improved nut-lock and
shews the side opposite where the bolts enter the nut-lock, the bolt heads, nuts, and
the seats for the nuts being shown in dotted lines. Fig. 2 is a top plan view of Fig. 1.
Fig. 3 is a sectional view taken on line in Fig. 2. Fig. 4 is a side view of my
improved nut-lock having different locking means for the two members than the means
shewn in the other views. Fig 5 is an elevation of an alternative form of my inven-
tion, and Fig. 6 is a plan of same. Fig. 7 is an elevation of yet another form of my

page_text: invention, and Fig. 8 is a plan of same. Fig. 9 is an elevation of an alternative
form of my invention conveniently adapted to take hexagon nuts, and Fig. 10 is a
plan of same.
In the said drawings, like numbers of reference designate corresponding parts
throughout.
Referring to the drawings, the numbers 6 and 7 designate, respectively, the lower
and the upper members or frames, which are hinged together at one end by means of
the hinge 8, and are adapted to open and close upon each other in an obvious manner.
The meeting faces of the members 6 and 7 are provided, respectively, with the seats 9
and 10, which are formed in a series for each bolt-nut in such manner that when
the two members are closed on each other, the two opposite sets of seats 9 and 10 of
the respective members will together forum something of a star shape, as shewn in the
sections in Fig. 3.
The respective members 6 and 7 are cut away at 11 and 12, in order to receive
the bolts 13, upon which the bolt-nuts 14 work. The object in having a series
of seats 9 and 10 for the bolt-nuts is to avoid an extended adjustment of the nuts
in order to get them into position to receive the locking members.
Each member 6 and 7 receives one of the respective transverse halves, or the upper
and lower halves, respectively, as shewn in Figs. 1, 3, and 4, of the bolt-nuts 14, which
are-entirely concealed and locked when the members are closed.
The members or frames 6 and 7 may be made out of cast iron-or-any-suitable well
known material.
In order to maintain the members securely in locked position, I have provided the
lower member, 6, with a spring lock, 15, having a key hole, 16 to receive a key which
is not shewn. The bolt 17 of the spring lock is adapted to lock with the staple 18,
which is secured to the upper member, 7. In this manner the members may be placed
under control of an ordinary lock and key.
In Fig. 4 I have shown a modified form of the locking means for the members 6
and 7 and the same consists in the ears 19 and 20, formed upon the respective
members and provided with the screw-threaded perforations 21 and 22 respectively.
These perforations 21 and 22 are arranged to register with each other when the members
are closed, so that the cars 19 and 20 may be secured together by means of
the screw stem 23, which may be passed through the perforations 21 and 22,
as shewn.
The members or frames 6 and 7 may be formed with several seats, as 9 and 10, in
order to include and to lock more than the two nuts shewn.
The operation of the device will be readily understood. When the nuts are screwed
down into position, the members 6 and 7 are opened and are placed over the nuts 14,
so as to receive the same in the respective seats 9 and 10. Then the members are
brought together and locked.
In Figs. 5 and 6, are shewn two views of an alternative form of my invention,
which consists essentially of the two members 24 and 25. The two extremities of the
two members are shaped to receive the sides of the nuts, as shewn in dotted lines, and are
provided upon their surface with the overlapping flanges 26. Through the centre
of the respective members is an aperture 27, through which a suitable bolt may be
passed, when the locking device is placed in position over the nuts.
Figs. 7, and 8 shew a modified form of the device shewn in Figs. 5 and 6. In this
form however the flange 26 as shewn in Figs. 5 and 6, is carried to overlap one side
as shewn. In this arrangement as well as in the preceding and following devices
shewn, the aperture through one of the members may be of an elongated shape, to
permit of easy adjustment of the bolts.
In Figs. 9 and 10 I have shown an alternative form of my invention which will
be found convenient for use in connection with bolts having hexagon nuts. In this
form, the two members 28 and 29 are formed at their extremities to receive the sides
of the nuts, as indicated by dotted lines, and are provided with overlapping flanges 26
as shewn. When placed in position over the bolt heads or nuts they are coupled
together by means of a suitable bolt, which is passed through the apertures 27.

page_text: Having now particularly described my said invention, and in what manner
the same is to be performed, I declare that what I claim is :-
1. The combination, as hereinbefore set forth, with the bolts and bolt nuts, of two
members hinged together and cut away to receive the bolts, and provided upon their
meeting faces with seats appropriate to receive and seat the respective transverse halves
of the nuts, and means for locking the said members together, substantially as and for
the purpose herein described.
2. The combination, as hereinbefore set forth, with the bolts and bolt nuts, of two
members provided with apertures for the reception of binding bolts, said members
adapted to fit over the bolts or bolt nuts, and provided with overlapping flanges, all
substantially as and for the purposes set forth, and shewn in the drawings hereunto
annexed.