Lock Nut for Screwed Bolts.
Year: 1893

page_text: Date of Application, 17th May, 1893
Complete Specification Left, 16:h Feb., 1894-Accepted, 12th May, 1894
WILLIAM GOLLIN 69 Dorset Street Old Radford Nottingham Iron Driller.
I do hereby declare the nature of this invention to be as follows:-
The object of this invention, is the construction of a nut, to firmly grip the bolt
onto which it is screwed.
I construct the nut similar to those in ordinary use, and after being screwed to
fit the bolt, I make a saw cut, preferably at an angle of thirty degrees with the
axis of the screwed hole, and about half way down the outside of the nut, an'l
preferably three threads down one side of the inside of the hole (the saw cut
being only at one side). The nut is then closed at right angles to the bolt thread
axis, until it firmly grips the bolt onto which it is screwed.
Dated this 15th day of May 1893.
J. E. STEEVENSON,
Agent.
Lock Nut for Screwed Bolts.
I, WILLIAM GOLLIN, of 69 Dorset Street Old Radford Nottingham Iron
Driller 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 :-
The object of this invention is the construction of a nut, to firmly grip the bolt
onto which it is screwed.
The invention will be fully understood from the following description and claims
when taken in connection with the annexed drawing, in which:
Fig. (1) is a diametrical section of a nut embodying my improvement the same
being illustrated as applied to a part of a bolt.
Fig. (2) is a perspective view of the nut removed showing a saw cut on the face
and down the threads of the inside of the screwed hole.
Fig. (3) is a section of the nut before the saw cut is closed.
Fig. (4) is a section of the nut showing the saw cut closed and the threads on
part B out of line with threads on part C.
Fig. (5) is an elevation of the nut showing saw cut on outside.
I construct the nut similar to those in ordinary use and after being screwed to
fit the bolt I make a saw cut preferably at an angle of thirty degrees with the axis
of the screwed hole & about half way down the outside of the nut and preferably
three threads down one side of the inside of the hole (the saw cut being only at
one side).
The nut is then closed at right angles to the bolt thread axis till it firmly grips
the bolt on to which it is screwed.
Having now particularly described and ascertained the nature of my said inven-
tion & in what manner the same is to be performed I declare that what I
claim is :-
(1.) Nut locks formed with the division A in combination with spring part B
which is so closed that the threads in screwed hole on part B are out of line with

page_text: threads in screwed hole on part C, substantially as and for the purpose herein
before described.
(2.) Forming nut locks with the spring part B in combination with the
division A and part C substantially as specified.
(3.) The combination in nut locks of part B bearing in one direction with part C
bearing in the opposite direction against bolt D by reason of part B being closed
against part C substantially as herein described and shewn in the drawing and for
the purpose specified.
(4.) In nut locks the arrangement and combination of part A, B and C
substantially as herein described and shewn in the drawing and for the purpose
:specified.
Dated this Fourteenth day of Fahruere 1804
A. & T. BOWLER,
New Stapleford, Nottinghamshire, Agents for Applicant.