Improvements in Nut-locks.
Year: 1893

page_text: Date of Application, 11th May, 1893-Accepted, 17th June, 1893
CUMI LEIE
Improvements in Nut-locks.
I, JAMES GARLAND DULANY, Gentleman, of 113 Walnut Street, Hannibal, in
Marion County, and State of Missouri, 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:-
My invention relates to improvements in nut locks and consists in the novel
arrangement and combination of parts, as will be more fully hereinafter described
and designated in the claims.
The object of my invention is to construct an improved device for locking nuts,
said device serving as a washer and when in position absolutely prevents the
moving of the nut in either direction.
In the drawings :
Fig. 1 is a perspective view of my invention applied to the meeting point of two
rails and holding the connecting-plates to said rails.
Fig. 2 is a perspective view of my invention removed from any connection with
other constructions.
Fig. 3 is a plan view of the bolt and lock and showing in dotted lines the
position of the nut, one corner of said lock being in engagement with the nut.
Figs. 4, 5, 6 and 7 are plan views of the bolt and lock, showing modified forms
of the engagement between said lock and said bolt.
Fig. 8 is a perspective view of the modification shown in Fig. 5, with the bolt
removed and showing two of the corners of the lock turned into position for
engagement with the nut.
Fig. 9 is a plan. view of the lock and bolt and shows an additional modification.
Fig. 10 is a longitudinal sectional view of the bolt made use of in the modification
shown in Fig. 9.
Fig. 11 is a perspective view of the lock shown in Figs. 1, 2 and 3, the same
being provided with a groove or depression to enable the bending of the corner
against the nut.
Fig. 12 is a sectional view of the bolt, nut and lock shown in Fig. 1, with a pin
through said nut engaging the slot in said bolt, and the lock holding said pin in
position.
Fig. 12 is a modified sectional view of the nut.
Referring to the drawings:
1 indicates the adjoining end of two ordinary T-rails such as used in railway
constructions and herein shown to set forth the application of my invention.
2 indicates longitudinal plates located upon both sides of the rail between the
tread and the base flange.
Bolts 3 pass through said plates 2 and rail 1, and are provided throughout
substantially one-half of their length with a V-shaped groove 4.
The lock-washer 5 consists of a rectangular plate made of brass, copper,
galvanized iron, Russia-iron, or in fact any of the well-known sheet-metals.
The lock-washer 5 is provided with a central opening 6, the same in diameter as
the bolt 3 and projecting into the opening 6 is an inverted V-shaped projection 7
formed integrally with the remaining portion of the lock-washer 5.

page_text: a pin 10, the inner edge of which conforms with the shape of the groove 4, into
which it is adapted to engage.
The nut 8 can be provided with one pin as shown in Fig. 1, two pins as shown
in Fig. 12 and four as shown in Fig. 12ª, or rather would be provided with these
numbers of openings 9, only one pin being necessary for each nut.
The object of having a multiplicity of openings 9 for the reception of the pin 10,
is that the pin may be put in the opening nearest the groove when the nut is set,
because the nut can usually be tightened enough to bring said pin into said
groove.
The nut having been set as shown in Fig. 1, one or more of the corners of the
lock-washer 5 are bent at right angles with the main portion of the lock-washer
and against the sides of the nuts and they absolutely prevent the backing of the
nut off the threads.
The corner facing the end of the pin 10 is necessarily bent to hold said pin, and
it is unnecessary to bend any of the other corners unless it is so desired.
In Fig. 4 is shown a modified construction, the bolt 11 being provided with a
rectangular groove 12, into which a coincident projection into the opening of the
washer is adapted to fit.
In Fig. 5 is shown a modification wherein the bolt 13 is provided with a
U-shaped groove 14, and the lock-washer with a coincidingly shaped projection.
In Fig. 6 is shown an additional modification wherein the groove in the bolt 15
is of dove-tailed form, said groove 16 adapted for the reception of a similarly
shaped projection upon the lock-washer.
In Fig. 7 is shown the bolt 17 with a groove 18 which is adapted for the
reception of a projection upon the washer, which is substantially of a truncated
conical form when viewed in plan elevation.
In Fig. 9 is shown an additional modification wherein the bolt 19 is provided
with two longitudinal grooves 20 which are V-shaped and adapted to receive
coincidingly shaped projections 21 on the lock-washer.
In Fig. 11 I show the lock-washer provided with grooves 22, which extend
across one corner of the rectangular shape of the washer, this groove being
provided to enable the operators to more readily turn the corner of the lock up
against the nut.
Although not herein shown, said lock-washer could be provided with a
multiplicity of these grooves extending across the corners of same without in any
way weakening the construction of the washer or affecting the material idea of my
invention.
I wish to specially emphasize the stability of the lock as herein described and
shown, as from practical experiments I find that the nut when set and locked
absolutely irremovable.
When it is desired to remove the nut, the washer corners which are turned up,
are easily forced back into their normal plane, thus enabling the removal of the
nut, the material of which the lock-washer is made permitting of repetition of this
operation a number of times without affecting the strength of the lock.
It will readily be seen how the location of the pin engaging as it does a groove,
and the additional locking of the nut by the bending of the washer corner carries
out the idea of my invention.
The modified forms of grooves and projections shown, are all used in connection
with the pins, as this construction facilitates a surer locking of the parts and does
not in any way weaken the nut.
Having now particularly described and ascertained the nature of my said inven-
tion and in which manner the same is to be performed, I declare that what
I claim is :
1. An improved nut lock having a bolt provided with a longitudinal groove
extending from the outer end of said bolt through the threads, a lock-washer
having a central opening, a projection into said opening, corresponding in form

page_text: with the groove in said bolt and adapted to fit therein, and the corners of said
washer adapted to be bent upwardly against the sides of the nut when set,
substantially as set forth.
2. An improved nut lock having a bolt provided with a longitudinal groove
extending from the outer end of said bolt through the thread, a lock-washer
adapted to fit over said bolt, said washer having a projection corresponding in
form with the groove of the bolt and adapted to fit therein, a nut adjustable upon
said thread, said nut provided with one or more radially arranged openings from
the central screw-threaded opening to the sides, a pin located in any one of said
openings which may be in alignment with the groove in the bolt when the nut is
set, said pin adapted to engage in said groove, and a portion of the lock-washer
adapted to be bent upwardly against the side of said nut and the outer end of said
pin, substantially as set forth.
3. An improved nut lock having a bolt provided with a V-shaped depression
throughout one-half, a lock-washer made of yielding metal adapted to fit upon
said bolt, said lock-washer having an inverted V-shaped projection adapted to
engage in said V-shaped depression in the bolt, a nut adjustable upon the threads
of said bolt, said nut provided with an opening extending from the central screw-
threaded opening to one of the sides of said nut, a pin located in said opening, the
inner end of said pin adapted to engage in said groove when said nut is set, and a
portion of said lock-washer adapted to be bent upwardly against the side of said
nut and the outer end of said pin, substantially as set forth.
4. An improved bolt adapted to have a nut locked thereon, said bolt provided
with a multiplicity of longitudinal grooves, a lock-washer having a corresponding
multiplicity of inwardly projecting portions adapted to engage in said grooves in
the bolts, a nut adjustable upon said threads and provided with horizontal openings
in one of which is located a pin, engaging on one of the grooves in said bolt said
lock-washer adapted to be bent upwardly to engage the side of said nut and the
end of said pin, substantially as set forth.
5. An improved nut adapted to be locked upon a bolt, said nut provided with a
horizontal opening, projecting from the central screw-threaded opening of the nut
to the side thereof, a pin adapted to be located in said opening and engage in a
longitudinal groove in said bolt, when said rut is set, a lock-washer adapted to be
located under said nut, said washer having a projection adapted to fit in said
groove and the bending of a portion of said washer against the side of said nut and
end of said pin adapted to lock said nut, substantially as set forth.
6. An improved nut lock having a nut provided with two extending openings
from the side of said nut to the central opening on same, pins adapted to be located
in said openings and the bending of the lock-washer against the protruding end of
said pin adapted to lock the nut, substantially as set forth.
CA
1000
ALLISON BROS.,
Agents for the Applicant.