Improvements in Nut Locks.
Year: 1897

page_text: Date of Application, 4th June, 1897
Complete Specification Loft 12th Foh 1808 Accented Oth Anr 1808
Improvements in Nut Locks.
I, JAMES DOUGLASS, residing at No. 62 East 124th Street, New York, in the County
and State of New York, United States of America, Engineer, do hereby declare
the nature of this invention to be as follows:-
This invention relates to nut locks for vehicles, and the object thereof is to
provide an improved device of this class whereby the wheel of a vehicle may be
secured thereto in such manner that it cannot accidently come off; a further object
being to provide a nut lock which is adapted to be employed in connection with
shafts, bolts, spindles or rods, wherever nut locks are required.
In the practice of my invention I provide an axle or spindle the end of which
is provided with an extension, on which are formed a plurality of circular ribs or
projections, and I also provide a nut, the central bore of which is provided at
one side thereof with circular ribs or projections which correspond with those
formed on the axle or spindle, and are adapted to engage therewith, and one side of
the nut adjacent to the central bore thereof is cut away so as to form a semi-circular
chamber, and mounted therein is a detachable semi-circular block, the inner part
of which is also provided with a plurality of circular ribs which are similar to those
formed in the opposite side of the nut, and on said axle or spindle, and said ribs
are also adapted to engage with those formed on the extension of said axle or
spindle.
The semi-circular block is removable even when the nut is in position on the axle,
or spindle, this result being made possible by reason of the depth of the semi-circular
chamber in which the semi-circular block is mounted, said depth being slightly
greater than the thickness of the detachable block, and the ribs formed thereon,
and I also provide a screw or bolt which is adapted to be passed through the side
of the nut, and into said chamber, and to bear upon the detachable block and
forced into engagement with the axle or spindle, or with the circular threads formed
thereon.
Instead of passing said screw or bolt through the side of the nut, said screw or
bolt may be passed upwardly and inwardly through the end of the detachable block,
so as to bear upon the upper wall of the chamber in which said block is placed, and
when this construction is employed, the detachable block will be made thicker
and the depth of the chamber in which it is mounted greater, than when said screw
or bolt is passed through the side of the nut.
By removing or loosening the screw or bolt, the detachable block will drop
out of engagement with the extension of the axle or spindle, and the nut may be
removed, and when it is desired to secure the nut in position, the said detachable
block is placed in position, and the extension of the axle or spindle is passed.
through the nut and the screw or bolt is operated to force the, detachable block
inwardly into engagement with the extension of said axle or spindle.
My invention is not limited to the use of the screw or bolt for the purpose
described, and other means may be employed, such as a spring bolt or similar
device, for forcing the detachable block into engagement with the end of the axle
or spindle, and my improvement is well adapted to accomplish the result for which

page_text: it is intended, while being comparatively inexpensive, and it will also be apparent
that this device may be employed in connection with rods, bars, bolts, shafts, and
similar device wherever lock nuts are required.
Dated this 2nd Nov 1807
Improvements in Nut Locks.
I, JAMES DOUGLASS, residing at 62 East 124th Street, New York, in the County
of New York and State of New York, United States of America, Engineer, 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 nut-locks for vehicles; and the object thereof is to
provide an improved device of this class whereby the wheel of a vehicle may be
secured thereto in such manner that it cannot accidentally come off."
1
The invention is fully disclosed in the following specification', of which 'the
accompanying drawings form a part, in which the separate parts of my improve-
ment are designated by the same numerals of reference in each of the views and in
which :-
Fig. 1, is a side view of the end of one of the axles of a vehicle and showing my
improved nut-lock in section;
Fig. 2, an end view thereof; and,
Fig. 3, a view similar to Fig. 1, showing a modified form of construction.
In the drawings forming part of this specification, I have shown at 5 one end
of the axle of a vehicle, which is provided with an extension 6, on which are formed
a plurality of circular ribs 7 in a plane at right angles to the axis of the spindle,
and I have also shown at 8, a nut which is provided with an annular flange or
rim 9, and formed in the central bore of said nut are a plurality of ribs 12, which
correspond with those formed on the extension 6 of the axle and are adapted. to
interlock therewith.
One side of the nut 8, adjacent to the central bore thereof, is cut away or cut out
to form a circular chamber 10, and mounted therein is a detachable section 11, which
is circular in form and which is provided on its inner surface with circular ribs 12,
similar to those formed within the body portion of the nut 8, and said ribs are
also adapted to engage with those formed on the spindle 6, as will be readily
understood.
The circular section 11 is removable even when the nut is on the extension 6 of
the axle, this result being made possible by reason of the depth of the circular
chamber 10, which is equal to or slightly greater than the thickness of the detach-
able section 11 and the ribs 12, formed thereon, and I also provide a screw or
bolt 13, which is adapted to be passed through the side of the nut 8.and into the
chamber 10 and to bear upon the detachable section 11 and force it into engage-
ment with the extension 6 of the axle, and said screw or bolt is preferably provided
with a set-nut 14.
In Fig. 3, I have shown a modification in which the screw or bolt 13 is passed
upwardly and inwardly through the end of the detachable section 11, and
said detachable section 11 is much thicker than in the construction shown in
Figs. 1 and 2, and the circular chamber 10 is much deeper. The inner end of the
screw 13 in this construction is adapted to bear on the upper wall of the chamber 10
and to force the detachable section 11 downwardly on to or into engagement with
the extension 6 of the axle.
.6

page_text: The operation will be readily understood from the foregoing description when
taken in connection with the acompanying drawings and the following statement
thereof.
By removing or loosening the screw or bolt 13 and turning the wheel the detach-
able section 11 will drop out of engagement with the extension 6 of the axle and
the nut 8 may be removed, and when it is desired to secure the nut in position the
said detachable section is placed in position and the extension 6 of the axle is
passed through the nut, and the screw or bolt 13 is then operated to force the
detachable section 11 inwardly, as shown in Figs. 1 and 3.
My invention is not limited to the use of the screw or bolt 13 for the purpose
herein specified, and any suitable means may be employed for forcing the detach-
able section 11 inwardly, and other changes in and modifications of the construction
herein described may be made without departing from the spirit of my invention
or sacrificing its advantages.
It will also be apparent that my improved nut may be employed in connection
with the shafts, bolts, or rods wherever such devices are desired, as well as in
connection with the axle of the vehicle.
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 of the character described, a spindle provided at the end with
a plurality of ribs between which are formed a plurality of grooves, said ribs and
grooves being in a plane at right angles to the axis of the spindle, a block mounted
on said ribbed portion and provided with an opening the wall of part of which is
provided with a plurality of ribs and grooves which correspond with
the said ribs and grooves of the spindle and a detachable section
adapted to be inserted in said opening, said section being segmental in form in cross
section and being provided on the inner side with a plurality of ribs and grooves
which also correspond with said ribs and grooves of the spindle, and means for
forcing the ribs formed in the said block and the ribs formed in the said detachable
section into contact with the ribs and grooves of the said spindle, substantially as
and for the purpose described.
in
cross-
2. In a nut-lock of the character described, a spindle provided at the end with a
plurality of ribs between which are formed a plurality of grooves, said ribs and
grooves being in a plane at right angles to the axis of the spindle, a block mounted on
said ribbed portion and provided with an opening the wall part of which is provided
with a plurality of ribs and grooves which correspond with the said ribs and
grooves of the spindle, and a detachable section adapted to be inserted
section
said opening, said
form in
being segmental in
section and being provided on the inner side with a plurality of ribs and
grooves which also correspond with the said ribs and grooves of the spindles, and
means for forcing the ribs formed in the said block and the ribs formed in the said
detachable section into contact with the ribs and grooves of the said spindle con-
sisting of a bolt mounted in an oblique screw-threaded bore or passage formed in
said detachable section, said bore or passage directed inwardly and upwardly
whereby the inner end of the said bolt is adapted to bear against the wall of the
opening formed in the said block, substantially as and for the purpose described.
1001
1000
WHEATLEY & MACKENZIE,
40, Chancery Lane, London, W.C., Agents.