Improvements in Lock-nuts.
Year: 1896

page_text: Date of Application, 24th Oct., 1896
Complete Specification Left, 26th July, 1897--Accepted, 28th Aug., 1897
I ALBERT EDWARD ROGERS of 141 Rye Lane, Peckham, in the County of London,
Schoolinaster, do hereby declare the nature of this Invention to be as follows:-
My Invention has for its object to provide lock-nuts by means of which the
fastenings of railway fish-plates, of axles of vehicles, of bearings for engines, or the
fastenings in bridge work holding down bolts or other fastenings where nuts are
screwed onto bolts or studs or their equivalents, are prevented from becoming
loosened, or rendered insecure.
According to my Invention I provide two nuts one formed with a female screw and
the other with a male screw, which are engaged together so that the two nuts are
screwed upon the bolt, stud, or the like, as one nut. The screws by which the two
nuts engage are preferably in the reverse direction to the threads in the interiors of
the nuts and on the bolt, stud, or the like, with which the threads in the interiors of
the nuts engage. In this case as the last named threads are usually right handed,
those by which the two nuts engage with each other are left handed.
The two nuts are screwed together and they are then screwed upon the bolt, or
stud, or its equivalent, as one nut, and, after the screwing home has been effected,
the one nut is turned slightly relatively to the other, and by this means the two nuts
are firmly locked in position on the bolt, stud, or the like, and are not liable to be
shaken loose by vibration.
Dated this 24th day of October 1896
JOHNSONS & WILLCOX,
47 Lincoln's Inn Fields, London, W.C., Agents.
Improvements in Lock-nuts.
I ALBERT EDWARD ROGERS of 141 Rye Lane, Peckham in the County of London,
Schoolmaster, 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 has for its object to provide lock-nuts by means of which the
fastenings of railway fish-plates, of axles of vehicles, of bearings for engines, or the
fastenings in bridge-work, holding down bolts or other fastenings where nuts are
screwed onto bolts or studs or their equivalents, are prevented from becoming
loosened, or rendered insecure.
According to my Invention I provide two nuts marked A and B in the
accompanying section, one formed with a female screw & the other with a male

page_text: screw which are engaged together so that the two nuts are screwed upon the bolt
stud C, or the like, as one nut. The screws by which the two nuts A and B engage
are preferably in the reverse direction to the threads in the interiors of the said nuts
& on the bolt, stud C, or the like, with which the threads in the interiors of the
said nuts engage. In this case as the last named threads are usually right handed,
those by which the said two nuts engage with each other are left handed. If the
threads of the screws by which the nuts are engaged together be in the same direction
as those on the bolt or stud or the like & inside the nuts they may with advantage
be of different pitches.
The two nuts A and B, are screwed together & they are then screwed upon the
bolt, or stud C or its equivalent, as one nut, and, after the screwing home has been
effected, the one nut is turned slightly relatively to the other and by this means the
two nuts are firmly locked in position on the bolt, stud C, or the like, & are not
liable to be shaken loose by vibration.
Having now particularly described and ascertained the nature of my said Invention
& in what manner the same is to be performed I declare that what I claim is :-
1. Lock-nuts formed of two component parts engaged together by a screwed
connection substantially as hereinbefore described.
2. Lock-nuts formed of two component parts engaged together by a screwed
connection having the screws thereof in a direction the reverse of the direction of the
screw on the bolt, stud or the like & of the screw in the nut which engages
therewith substantially as herein before described.
Dated this 26th day of July 1897.
JOHNSONS & WILLCOX,
47 Lincoln's Inn Fields, London, W.C., Agents.