Improveme
Year: 1897

page_text: Improveme
I, ARCHIBALD KEIR LEITCH, of Great Valley, Deltotte, Ceylon, Planter, do hereby
declare the nature of this invention to be as follows:-
My invention relates to improvements in lock-nuts, which consists of making a
groove in the bolt deep enough to take a flexible pin or wire, below the level of the
threads of the screw, and at the end of the groove I drill a hole in the bolt so as to
allow of the bent end of the pin being passed into it and so secured. then take a
pin bent at right angles at one end and lay it in the groove with the bent portion
in the hole in the bolt pass the bolt through the bolt hole of the pieces to be connected
together, and then screw on the nut. (which may have any number of grooves in the
face of it, so as to allow of the bending over of the other or tail end of the pin or wire
without disturbing the level of the face aud so making the hold inore secure) and then,
bend over the tail end of the pin in one of the grooves cut in the face of the nut after
the said nut has been thoroughly tightened up.
Although I usually only cut six grooves in the face of the nut, there may be any
number where there is room for radiating from the centre, for the end of the pin to
be bent at right angles, over, depressed or clamped into either of the aforesaid
grooves.
It will be seen by this method that after the pin has been fixed it is impossible for
the nut to become loose from the bolt, owing to the nut being fixed to the bolt by.the
action of clinching the pin hereinabove described.
J. P. BAYLY,
18 Fulham Place, London, W., Agent for the Applicant.
I, AROHIBALD KEIR LEITCH, of Great Valley, Deltotte, Ceylon, Planter, 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 lock-nuts, for the purpose of rigidly bolting
together various parts of materials employed in mechanical constructions and to
prevent any nut so employed becoming loose on the bolt.
And in order that my invention may be thoroughly understood, I now proceed to
describe the accompanying drawing thereof, reference being had to letters and figures
marked thereon.
Fig. 1. is a side elevation of the bolt.

page_text: Fig. 3, is a view of the pin bent at right angles at an end.
Fig. 4, is a view of the pin bent at both ends.
Fig. 5, is a view of the nut with six grooves; and
Fig. 6, is a vertical section of two pieces g of machinery bolted together with the
nul fixed to the bolt by means of the tail end of the pin turned up at right angles.
The invention consists of making a groove a in the bolt b deep enough to take a
flexible pin & or wire, bolow the level of the threads ; of the screw, and at the end of
the groove a I drill a hole in the bolt b so as to allow of the bent end or head i of
the pin being passed into. it and so secured. I then take a pin d bent at right angles
at one end and lay it in the groove a with the bent portion or head & in the hole in
the bolt pass the bolt through the bolt hole of the pieces g to be connected together,
and then scrow on the nut e (which may have any number of grooves f in the face of
it, so as to allow of the bending over of the other or tail end h of the pin or wire
without disturbing the level of the face and so inaking the hold more secure) and
then bend over the tail end of the pin in one of the grooves f cut in the face of the
nute after the said nut has been thoroughly tightened up.
Although I usually only cut six grooves in the face of the nut e, there may be any
number where there is room for radiating from the centre, for the end of the pin d
to be bent at right angles, over, depressed or clamped into either of the aforesaid
grooves.
It will be seen by this method that after the pin has been fixed it is impossible for
the nut to become loose from the bolt and bolt head c, owing to the nut being fixed
to the bolt by the action of clinching the pin hereinabove described.
Having now particularly described and ascertained the nature of my said
Invention, and in what manner the same is to be performed, I declare that what I
claim is :-
1. In bolts and lock-nuts, the combination of the bolt b with a hole & pierced to
receive the head & of the pin d and the longitudinal groove a, and nut e with grooves ƒ
radiating from the centre, substantially as herein described and for the purpose
specified.
2. In bolts and lock-nuts, the combination of the pierced grooved bolt, bent pin and
the nut with the face grooved, substantially as described.
3. In bolts and lock-nuts, the combination of various parts, substantially as above
described in this specification.
4. In bolts, the combination of the bolt, with the hole and groove, substantially os
described.
5. In lock-nuts, the combination of the nut and grooves cut on the face radiating
from the centre, substantially as described for the purpose specified.
Dated-this 12th day of July 1897.
J. P. BAYLY,
18 Fulham Place, London, W., Agent for the Applicant.