Improvements in Nut LOCKS.
Year: 1898

page_text: Date of Application, 19th Mar.. 1898
Complete Specification Left, 8th Dec., 1898-Accepted. 14th Jan., 1899
:
Improvements in Nut LOCKS.
I, JOHN TOMLINSON MCMURTRY, of Conneaut, County of Ashtabula, State of Ohio,
United States of America, Blacksmith, do hereby declare the nature of this invention
to be as follows :-
My invention relates to nut locks for preventing backward movement or unscrewing
of the nuts applied to the bolts or railway rails; and its object is to provide a
combined nut-lock and washer which will effectually prevent the nuts from working
loose.
The invention consists, essentially, in a spring-metal bar having the ends bent
inwardly and formed into loops and formed near said loops with a bend or offset so
that the loops will be in a different plane from the bar.
The combined nut-lock and washer consists of a spring-metal bar comprising a
straight or horizontal portion having the ends curved inwardly in order to form
curved arms, the extremities of which are bent backwardly into a circular form
forming loops of a diameter approximating that of the bolts. Intermediate the loops
or coils and the arms the bar is bent or formed with an offset, so that the loops will
stand away from or be in a different vertical plane from the straight portion of the
bar.
In using the device the bolts are passed through the rails and fish-plate, as usual,
and the locking bar applied by passing loops over the threaded ends of the bolts, with
the coils resting against the fish-plate. The nuts are then placed on the bolts and
screwed home by means of a wrench forcing the loops or coils tightly against the
fish-plate and the inner faces of the nuts, the said bar also engaging with the nuts.
By this means the nuts will be securely held in place and prevented from working
loose under ordinary circumstances. In screwing up the nuts, as described, the bar
will give, so as to allow the corners of the nuts to pass the same, and when screwed
home the resiliency of the bar will cause it to bear on the side of the nuts and thus
aid in preventing them from turning.
It will be noticed that the coils are compressed between the nuts and fish-plates
and thus serve as coiled springs so that should the horizontal arm become broken
said coils will still serve by their resiliency to keep the nuts from turning or working
loose.
As will be readily understood the coils extend or project beyond the horizontal
portion, so that when the nuts are screwed home, clamping said coils between their
inner faces and the fish-plate, the said horizontal portion will lie in a different plane
from the coil, so as to engage with the sides of the nuts.
Dated this 19th day of March 1898.
BOULT & WADE,
Agents for the Applicant.

page_text: I, JOHN TOMLINSON MCMURTRY of Conneaut, County of Ashtabula, State of Ohio,
United States of America, Blacksmith, 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 :-
My invention relates to nut locks for preventing backward movement or unscrewing
of the nuts applied to the bolts or railway-rails; and its object is to provide a
combined nut-lock and washer, which will effectually prevent the nuts from
working loose.
The invention consists, essentially, in a spring metal bar having the ends bent
inwardly and formed into loops and formed near said loops with a bend or off-set, so
that the loops will be in a different plane from the bar, as hereinafter fully described
and claimed.
In the accompanying drawings, Figure 1 is a side elevation showing two
connected railway-rails provided with my improvements. Fig. 2 is a similar view of
the nut-lock, removed. Fig. 3 is a plan view of the same.
In the said drawings the reference-nuneral 1 designates two railway-rails, 2 the
fish-plate, 3 the bolts and 4 the nuts, which may be of any ordinary or suitable
construction.
The numeral 5 designates the combined nut lock and washer, consisting of a spring-
metal bar comprising a straight or horizontal portion 6, having the ends curved
inwardly, forming curved arins 7, the extremities of which are bent backwardly into
circular form, forming loops 8 of a diameter approximating that of the bolts.
Intermediate the loops or coils and the arms 7 the bar is bent or formed with an
offset 9, so that the loops will stand away from or be in a different vertical plane, from
the straight portion of the bar.
In using the device the bolts are passed through the rails and fish-plate, as usual,
and the locking-bar applied by passing the loops over the threaded ends of the bolts,
with the coils 8 resting against the fish-plate. The nuts are then placed on the bolts
and screwed home by means of a wrench, forcing the loops or coils tightly against
the fish-plate and the inner faces of the nuts, the bar 5 also engaging with the nuts.
By this means the nuts will be securely held in place and prevented from working
loose under ordinary circumstances. In screwing up the nuts, as described, the bar
will give, so as to allow the corners of the nuts to pass the same, and when screwed
home the resiliency of the bar will cause it to bear on the side of the nuts and thus
aid in preventing them from turning.
It will be noted that the coils 8 are compressed between the nuts and fish-plates
and thus serve as coiled springs, so that should the horizontal arm become broken,
said coils will still serve by their resiliency to keep the nuts from turning or working
loose.
As will be seen in Fig. 3, the coils 8 extend or project beyond the horizontal,
portion 6, so that when the nuts are screwed home, clamping said coils between their
inner faces and the fish-plate, the said horizontal portion will lie in a different plane
from the coils, so as to engage with the sides of the nuts.
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 :-
In a nut-lock, the combination with the rails, the fish-plates, the bolt and the nut
of the look

page_text: downwardly and then inclined backwardly, at an angle to said horizontal arm and
the extremities bent into coils embracing the bolt and confined between the nut and
fish-plate and, the upper sides of the nut. bearing against said horizontal arm,
substantially as described.