Year: 1898

page_text: We, LEO MILLER CHAPMAN, Machinist and Inventor, and JAMES MADISON GELATT,
Gentleman, both of 107, East College Street, Louisville, Kentucky, U.S.A., do
hereby declare the nature of this invention to be as follows:-
The object of this invention is to provide a lock-nut which can be quickly applied
and be cheaply manufactured, and is of exceedingly neat appearance.
Our improved lock-nut comprises a thick washer having a central angular aperture
adapted to pass over a similar shaped projection on the bolt or the like. An annular
groove is recessed from the central aperture beneath the front face of the washer.
notch in the face of the washer opens into the groove.
A
The lock-nut has an outer flange which bears against the face of the washer
and covers the notch; U-shaped incisions being made in the flange to enclose
tongues. A projecting lug on the rear face of the nut is adapted to be entered
through the notch so as to revolve in the annular groove, when the nut is applied to
the threaded bolt or the like. Unless the lug be coincident with the notch the nut
cannot be removed.
Bending one of the tongues into the notch makes the locking doubly sure.
R. RAINSFORD,
Agent for Applicant.
We, LEO MILLER CHAPMAN, Machinist and Inventor, and JAMES MADISON GELATT,
Gentleman, both of 107, East College Street, Louisville, Kentucky, U.S.A., 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 an improvement in locking nuts; the object of the
invention is to provide a locking nut especially applicable for securing the wheels
upon axles; but which may also be employed in many cases where locking nuts are
used. Our improved locking nut is neat in appearance, cheap to manufacture, and
exceedingly efficacious in use.
Reference being had to the drawings hereunto annexed:―
Figure 1 is a side elevation of an axle, (which might however be a rod, stud, or other
article to which the nut is applied) shewing the locking device applied thereto.
Fig. 2 is a view of the outer face of a collar forming part of our device; and Fig. 3
[Price 8d1

page_text: is a diametrical section therethrough.
Fig. 5 is a view of the inner face thereof.
Fig. 4 is a side elevation of the nut; and
The axle, rod, stud or other article to which the locking nut is applied is reduced
at its extremity and formed near the shoulder 2 with a square, hexagonal, or other
suitably shaped portion 3; the remainder of the projecting part 4 being screw-
threaded. If preferred the angular part 3 may be dispensed with and a portion of
the stud, equal in length to the angular part, be fitted with a feather, key, or
projecting stud which will prevent the collar 5 from turning thereon.
The collar 5 is hollow as shewn at 6, and is provided on its inner face with an
aperture 7 corresponding in shape to the angular portion 3; or the aperture 7 may be
formed with a key-way to engage the feather, stud or the like as aforementioned.
The opposite outer face of the collar has an aperture 8 in which is a radially extending
notch 9.
The nut comprises the hexagonal or square portion 10, formed integral with the
collar 11, the boss 12, and the radially disposed projection 13; the hole being tapped
as indicated at 14.
In order to assemble the parts, the nut is held at a slight angle to the collar 5 so
that the projections 13 can be inserted into the notch 9, and the boss 12 into the
aperture 8, from whence neither can return so long as the collar 11 is in contact with
the outer face of the collar 5, in consequence of the projection 13 being longer than
the notch 9. The two parts are therefore interlocked so long as they are in
alignment as when mounted on the stud 4 and the nut adjusted thereon, which
causes the aperture 7, or the keyway therein, to engage over the angular part 3, or
feather, key or projecting pin in the stud 4.
It will be understood therefore, that although the locking device may be
readily removed by removing the nut, friction or vibration acting on the collar 5
cannot rotate or remove it.
Having now particularly described and ascertained the nature of our said
invention, and in what manner the same is to be performed, we declare that what
we claim is :-
A locking nut comprising a collar having an internal annular hollow portion,
an angular aperture, or an aperture formed with a key-way entering the hollow
portion from the side of the collar, and an aperture formed with a radially
disposed notch entering the hollow part from the other side of the collar; a nut
consisting of an angular portion adapted for engagement by a wrench, a collar
at the rear of the nut, a boss projecting from the collar and a radially disposed
projection on said boss longer than the notch in the collar, aforedescribed, all substan-
tially as and adapted to operate as hereinbefore set forth and illustrated in the
drawings hereunto annexed.
Dated this 17th day of Inly 1899