Improvements in Nut Locks.
Year: 1897

page_text: Date of Application. 13th Mar., 1897-Accepted, 17th Apr., 1897
Improvements in Nut Locks.
I, JOHN EDWIN WARD, of Waverly, County of Tioga, New York State,
U.S.A., Gentleman, 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 consists in the combination with a screw bolt and nut of ordinary
construction, of a washer having a horse shoe shaped groove in its outer face
which is adapted to have a wire nail or a piece of wire driven into it after the nut
is in place.
In the accompanying drawing
Fig. 1 is a plan view illustrating the nut lock of this invention.
Fig. 2 a face view of the washer, with the nut fitting against the same shewn in
dotted lines.
Fig. 3 a detail perspective view of the washer.
1 is the bolt, 2 the nut, 3 the washer having a pin or projection 4 to fit within
a correspouding orifice in a fish plate or other object 5 to be held in place by the
bolt or nut. 6 is a horse shoe shaped groove formed in the outer face of the
washer into which recess is driven, when the nut is in place on the bolt, a wire nail
or piece of wire 7. The ends of the nail or wire 7 are afterwards upset, and bent
down against the outer edge of the nut so as to securely hold the latter in place, or
if a headed wire nail be used only the opposite end thereof need be upset.
In using a horse shoe shaped groove as described I am enabled to drive the
securing nail 7 in place and upset the ends thereof from the same side of the washer.
It is absolutely impossible also, whether the upsetting be performed or not, for said
strip of wire 7 to become detached from the washer 3. Furthermore by reason of
the converging ends of the groove 6 a wedge shaped opening is formed when
hexagonal nuts are used between the outer ends of said groove and the outer edges
of said nut.
This permits of a wedging of the upset ends of said wire and aids in
holding the same firmly and securely in place.
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 :--
1. In a nut lock, the combination with a bolt and nut of ordinary construction,
of a washer having a horse shoe shaped groove in its outer face and a wire nail
adapted to be driven into said groove and afterwards upset for the purpose of
preventing the turning of said nut, substantially as described and shown.
2. In a nut lock, the combination with a bolt and nut of ordinary construction,
of a washer having a groove in its outer face whose outer ends are on the same
edge of said washer and a strip of wire adapted to be driven into said groove and
afterwards upset for the purpose of preventing the turning of said uut, substantially
as described and shewn.
3. In a nut lock, the combination with a bolt and nut of ordinary construction,
of a washer having a horse shoe shaped groove in its outer face whose ends lie at
an angle to the outer edges of said nut forming wedge shaped openings between the
edge of said groove and the edge of said nut and a strip of wire adapted to be
Ipin vs.

page_text: driven into said groove and afterwards having its ends upset and forced into said
wedge shaped openings for preventing the turning of said nut, substantially as
described and shewn.
Dated this 13th day of March 1896.
THOMAS R. SHILLITO,
89 Chancery Lane, London, W.C., Agent for the Applicant.