Improvements connected with the Locking of Nuts upon their Bolts.
Year: 1895

page_text: Date of Application, 18th July, 1895
Complete Specification Left, 17th Apr., 1896-Accepted, 23rd May, 1896
PROVISIONAL SPECIFICATION.
Improvements connected with the Locking of Nuts upon
their Bolts.
I, JOHN WESCOTT, of Reading Road, Wokingham, in the County of Berks,
Engineer, do hereby declare the nature of this invention to be as follows:-
My invention relates to improvements in locking screw-nuts upon their bolts.
In carrying out my invention provide a nut of special construction, that is to
say a nut having an extension which is cylindrical for part of its length and tapered
or conical the other part of its length, the said extension being slit or divided
longitudinally and having its cylindrical portion screw-threaded to carry a lock-nut
proper, the said lock-nut having an internal taper or conical portion designed, when
the lock-nut is applied to the main nut, to come into contact with the conical part
of the extension on the main nut, and to contract the same and force it tightly into
contact with the threads of the usual bolt or stud.
In a modification of my invention which is especially useful for locking nuts upon
bolts or studs, the ends of which will only project slightly above the nuts when the
latter are in position, I slit the end of the bolt and form a hollow cone therein, a nut,..
having a conical extension adapted to fit into the said hollow cone and screwed on
to a stud fixed in the end of the main bolt, serving, when screwed down into the
bolt, to expand the divided part of the same into the main nut which in this case is
of ordinary construction.
· Dated the 18th dex of Tule 100%
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements connected with the Locking of Nuts upon
their Bolts.
I, JOHN WESCOTT, of Reading Road, Wokingham, in the County of Berks,
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 :-
My invention relates to improvements in locking screw-nuts upon their bolts.
In the accompanying drawing,
Figure 1 is an elevation of a bolt having its screw-nut locked thereon according
to iny invention :
Figure 2 is a plan of the same :
Figure 3 is an elevation of the bolt with my specially constructed nut and the
lock-nut in section; and,
Figure 4 is an elevation of my said nut:
Figures 5, 6 and 7 are similar views to Figures 1, 2 and 3 but illustrating
modification of my invention.
In carrying out my invention which I will first describe by reference
[Price 8d.]

page_text: to Figures 1 to 4, I provide a nut a of special construction, that is to say, a nut
having an extension which is cylindrical for part of its length as shewn at band
tapered or conical the other part of its length, as shewn at c, the said extension
being slit or divided longitudinally as at d and having its cylindrical portion b
screw-threaded to carry a lock-nut proper e, the said lock-nut having an internal
taper or conical portion f designed when the lock-nut e is applied to the main nut a
to come into contact with the conical part c of the extension b on the main nut a,
and to contract the same and force it tightly into contact with the threads of the
usual bolt or stud h.
In a modification of my invention illustrated in Figures 5, 6 and 7, and which is
especially useful for locking nuts upon bolts or studs the ends of which will only
project slightly above the nuts when the latter are in position, I slit the end of the
bolt hand form a hollow cone i therein, a nut j having a conical extension k adapted
to fit into the said hollow cone i and screwed on to a stud fixed in the end of the
bolt serving, when screwed down into the bolt, to expand the divided part of the
same into the main nut m which in this case is of ordinary construction.
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. A nut having an extension internally and externally screw-threaded and slit
longitudinally in combination with a lock-nut having an internal taper or conical
portion adapted to make contact with a conical surface on the said extension
substantially as, and for the purpose, described.
2. A bolt having a hollow cone formed in the threaded end (which end is also
slit longitudinally) and a screw-stud extending through the said cone in combination
with a nut having a conical extension adapted to be screwed on to the said stud
and to fit into the said hollow cone substantially as, and for the purpose,
described.
3. The manufacture and use of locking nuts substantially as hereinbefore
described and illustrated in Figures 1 to 4 of the accompanying drawing.
4. The manufacture and use of bolts substantially as herein before described and
illustrated in Figures 5 to 7 of the accompanying drawing.
Dated this 17th day of Amil 1000
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.