Improvements in Locking Nuts.
Year: 1894

page_text: Date of Application, 8th Feb., 1894
Complete Specification Left, 8th Nov., 1894-Accepted, 8th Dec., 1894
I, JULIUS EVINOF, of The Buckingham Palace Hotel, in the County of
London, Doctor of Medicine, do hereby declare the nature of this invention to be
as follows:--
This invention relates to an improved device for locking nuts so as to prevent
their working loose.
In carrying out my invention I employ a metal strap or clip adapted to take
over the nut, the said strap or clip being provided with a projection or pin at right
angles to the axis of the bolt and adapted when the nut is screwed tight to pass
into a hole in the bolt. The said pin is advantageously split so that when passed
into the hole in the bolt it springs out or can be opened out so that it will hold the
locking device firmly in position.
Instead of employing a split pin as above described I may employ a projection
on the device adapted to pass into or through a hole or slot in the article such as
a fish plate to be bolted in which case the projection is parallel with the axis of
the bolt and the end thereof is formed with a head to prevent the device from
sliding out.
Dated this 8th day of February 1801
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Locking Nuts.
I, JULIUS EVINOF, late of The Buckingham Palace Hotel but now of
36, Members Mansions, Westminster, in the County of London, Doctor of
Medicine, do hereby declare the nature of my invention for "Improvements in
Locking Nuts" 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 an improved device for locking nuts so as to prevent
their working loose.
In carrying out my invention I employ a metal strap or clip adapted to take
over the nut, the said strap or clip being provided with a projection or pin at
right angles to the axis of the bolt and adapted when the nut is screwed tight to
pass into a hole in the bolt. The said pin is advantageously split so that when
passed into the hole in the bolt it springs out or can be opened out so that it will
hold the locking device firmly in position.
Instead of employing a split pin as above described, I may employ a projection
on the device adapted to pass into or through a hole or slot in the article such as
a fish-plate to be bolted, in which case the projection is parallel with the axis of
the bolt aud the end thereof is formed with a head to prevent the device from
sliding out.
To enable my invention to be fully understood I will describe the same by
reference to the accompanying drawings, in which,
Figures 1, 2 and 3 are respectively a plan, front view and a side view of my
improved device for locking nuts.
Figures 4 and 5 are respectively a side and an end view of a bolt and nut with
the device applied thereto.
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page_text: Figure 6 is a similar view to Figure 4 but shewing the nut in a differen
position.
Figure 7 is a sectional elevation illustrating the modification where in place of
the split pin I employ a projection adapted to enter a slot.
Figure 8 is a section on the line 8-8, Figure 7.
Similar letters of reference indicate similar or corresponding parts in all the
figures.
a, 6 respectively indicate a bolt and nut both of which are of ordinary con-
struction except that in the end of the bolt a hole c is formed.
d indicates my locking device, which device comprises a strap or clip e designed
to embrace the nut, as clearly shewn in Figure 5, (where it is represented as
being shaped to fit four sides of a hexagonal nut) and a pin f bent so as to be
parallel with the plane of the nut to which it is applied and at right angles to the
axis of the bolt a, the said pin being split longitudinally as shewn at g, Figures 1
and 2.
It will be understood that when the nut is screwed onto the bolt, for instance,
into the position shewn either in Figure 4 or in Figure 6, the locking device being
applied over the nut so that the pin f enters the hole e in the end of the bolt and
the split end of the pin opened, as shewn in Figure 5, the nut will be prevented
from turning on the bolt.
It will be obvious that from the construction of the locking device it allows of
holding the nut in whatever position it may be placed within certain limits
provided the nut be in such a position that the pin f can enter the hole c in the
bolt.
In the modification shewn in Figures 7 and 8, ƒ indicates the projection I employ
in place of the split pin herein before described, and c the hole or slot which is
formed for example in the fish-plate j in place of the hole c in the bolt to receive
the said projection, which is provided with a head k designed to enter an enlarge-
ment at the back of the slot c to prevent the locking device from becoming
displaced, the projection being parallel with the bolt.
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
claim is :-
1. A device for locking nuts upon screw-bolts consisting of a strap or clip
adapted to partly embrace the sides of the nut and provided with a split pin or
projection adapted to enter a hole in the bolt, substantially in the manner
described and illustrated in Figures 1 to 6 of the accompanying drawings.
2. The combination with a nut and a bolt having a hole c in the end thereof,
of a nut locking device consisting of a strap or clip adapted to embrace the sides of
the nut and having a split pin entering the hole in the bolt, the several parts being
arranged and operating substantially as described and illustrated in Figures 4
and 5 of the accompanying drawings.
3. The modification of the device wherein the strap or clip is provided with a
headed projection adapted to enter a hole in the surface against which the nut is
screwed, substantially as described by reference to Figures 7 and 8 of the
accompanying drawings.
4. The combination of a nut locking device having a headed pin or projection
with a nut and bolt and a hole in the surface against which the nut is screwed
substantially as described and illustrated in Figures 7 and 8 of the accompanying
drawings.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.