Year: 1897

page_text: We, JOSEPH HENRY JACKSON, of 53, Clare Road, Cardiff, Mechanical Engineer,
and DAVID RHYS JONES, of 19, Paget Street, Cardiff, Physician and Surgeon, do
hereby declare the nature of this invention to be as follows:-
The bolt if not square or otherwise irregular near its shoulder may be locked to
the work by prominences on the shoulder fitting into corresponding depressions
punched or drilled into the work or else by a dowel.
The washer engages to the work by prominences made by stamping or other-
wise or by dowel-pins fitting into depressions punched or drilled into the work.
Or the inner circle of the washer may be punched so as to form a tongue or
tongues on one or opposite sides, which are depressed downwards into correspond-
ing grooves in the work on the rim of the bolt-hole. The washer has also round
holes punched or drilled through it.
The nut has a hole drilled or punched through it, and this hole is of wider
diameter in the lower or inner part than in the upper or outer part. A spring
piston or plunger passes through this hole. The under or inner part of this spring
piston or plunger is thicker than the outer or upper part. Its lower or inner end
is slightly rounded and it fits easily into any of the holes in the washer. Within
the nut and between the ends of the spring piston or plunger is a spiral spring
which forces the spring-piston or plunger down. At the upper end of the spring-
piston or plunger is a T or somewhat hammer-spaped piece rivetted into this end
of the spring-piston or plunger. The whole spring-piston or plunger including
this T or somewhat hammer shaped head is capable of turning round on its own
axis and this T or somewhat hammer shaped head fits accurately when turned
to the proper extent into a corresponding well-fitted depression on the upper or
outer side of the nut, and is kept firmly in position by the downward pressure of
the spring. This T or somewhat hammer-shaped piece is capable of being lifted
up against the force of the spring by the thumbnail or some sharp tool and of
being turned partly round to rest on the unnotched surface of the nut. The
spring-piston or plunger is then free from the washer and allows the nut to un-
screw. In screwing up, until the nut is almost home the spring-piston or plunger
is held up by this T or somewhat hammer spaped piece. Then this T or some-
what hammer-spaped piece is turned opposite the depression on the nut and the
nut is then turned until the spring piston or plunger locks into one of the holes
in the washer, and the T or somewhat hammer-shaped piece fits even with the
surface of the nut thereby preventing dust or dirt from gathering in the hole of
the plunger.
ARIA BELtoanth day of June 1897
JOSEPH HENRY JACKSON.
DAVID RHYS JONES.

page_text: JOSEPH HENRY JACKSON, of Clare Road, Cardiff, Mechanical Engineer, and
DAVID RHYS JONES, of 19, Paget Street, Cardiff, Surgeon, 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 lock nuts washers and bolts, and the object thereof is
to provide new or improved devices. of this class, 'which are adapted to be used in
connection with various forms of machinery and wherever lock nuts washers and
bolts are required.
The inner side of the bolt head where it is not prevented from turning in the
work by a square or otherwise than round portion of the bolt B is provided with
a prominence E or prominences or else with a dowel pin F or dowel pins which
are adapted to enter corresponding depressions or openings in the work.
Where a washer D is used it is adapted to be mounted on the screw-threaded
end of the bolt B and is prevented from turning by one or more prominences G
Fig. 5 or else tongues H punched in the edge of the hole S in the washer which
radiate outwards and which are bent to fit into corresponding depressions I or
grooves in the work or else by one or more dowel pins fitting into depressions in
the work and any desired number of these prominences G tongues H or dowel
pins may be used. The washer. D where used is provided with a plurality of
holes L which are arranged in a circle therein; or a washer may be dispensed with
and one hole Fig. 2, L or a plurality of holes may be drilled or otherwise made
in a circle round the bolt hole in the work.
The nut is provided on one side with a transverse bore or opening K the inner
end of which M is enlarged to form a corresponding chamber and mounted in said
bore and said chamber is a bolt N provided at its inner end with a knob O which
is adapted to move in said bore K and said chamber M and to enter any of the
holes or openings L in the washer or else any of the holes L' in the work where
the washer is dispensed with. And between the knob of the bolt, and the inner
end of the chamber is a spring P preferably spiral. And the outer end Q of the
bore is enlarged to form a notch on the edge of the nut and so formed as to receive
accurately the head R of the bolt N which is preferably somewhat hammer-head
shaped and the top of the head is flush with the surface of the nut when the knob O
of the spring operated rod N is in one of the holes L of the washer or else in a
hole L in the work where the washer is dispensed with. And this somewhat
hammer head shaped part R may be of one piece with the spring operated rod or
bolt or else may be rivetted or otherwise fastened thereto. The bolt K can be
raised by placing the nail or end of a screw driver or some similar sharp tool
underneath the head R and then turning the head partly rouund so that it rests
on the unnotched part of the nut C and so long as it rests there the effect of the
spring operated rod or bolt N is counteracted. Where the end O of the spring-
operated rod N is conical, by screwing up the nut to the required tightness and
then tapping the spring operated rod or bolt N, a mark will be found on the work
where to centre a hole L¹ for the knob O of the spring operated rod or bolt N so
that when the knob O of the spring operated rod N falls in that hole L¹ the nut C
will lock firmly on the work A.
It will thus be seen that we provide means for preventing the turning of the
bolt B and also the turning of the washer D where employed and likewise the
turning of the nut C on the washer D, or on the work A where a washer is dispensed
with.

page_text: Our invention is well adapted to accomplish the result for which it is intended.
It will be apparent that changes in and modifications of the construction herein
described may be made without departing from the spirit of our invention or
sacrificing its advantages. Among these changes and modifications we may
instance the case of a bolt screwing into the work. In this case the spring
operated rod must-be fitted in the bolt -head-in a manner similar to where it is
fitted in the nut. Again where it may be convenient to use thin nuts our spring
operated rod may be fixed in a protuberance in the nut. In still other instances
the spring-operated rod may be fitted in the washer or work Fig. 4 N underneath
in which case it will lock into a hole L or holes in the nut C.
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: -
1. A method of locking nuts by means of a new or improved form and use of a
spring-operated rod N fixed in the nut C with the use of a washer, D).
2. A method of locking nuts by a new or improved form and use of a spring
operated rod N fixed in the nut C without a washer.
3. A method of locking nuts by a new or improved form and use of a spring
operated rod fixed in the work N Fig. 4 or washer said spring operated rod N
entering into the nut, C.
Dated this Seventeenth day of March 1898.
JOSEPH HENRY JACKSON.
DAVID RHYS JONES.