IMPROVEMENTS IN MEANS FOR LOCKING NUTS
Year: 1884

page_text: We WILLIAM JOHN CLAPP of Nantyglo, in the County of Monmouth, Surgeon,
and BENJAMIN JOSEPH BARNARD MILLS of 23 Southampton Buildings in the
County of Middlesex, Patent Agent, do hereby declare the nature of our said
Invention for IMPROVEMENTS IN MEANS FOR LOCKING NUTS, to be as follows:-
The present invention has for its object improvements upon an invention for
which the said William John Clapp obtained provisional protection dated the
17th July last, No. 10281 and relates to certain constructions of parts whereby 'the
cost is reduced and other advantages gained.
In the provisional specification of the said William John Clapp, separate loose or
independent pins or studs were employed in connection with a supplemental nut
to obtain the locking action; this employment of separate loose or independent
studs or pins involved the necessity of providing holes through the body or at the
edges of the main nut to receive such studs or pins and retain them separately in
position thereby increasing the cost incurred in producing the main nut.
Now according to the present Invention we connect the pins or studs together in
pairs, thereby enabling us to employ a main nut of the ordinary form, without the
holes above mentioned, or a main nut with grooves on its edges which are of such
form as to enable them to be produced in the same operation with the shaping of
the nut. The part connecting the studs or pins may be in the form of a perforated
plate, dished or otherwise, or of a ring of wire passing loosely over the bolt or it
may be in the form of a semi-circular curved or straight piece of sheet or strip
metal or wire. By.forming the studs or pins and their connecting piece of sheet
metal they can be produced by stamping and when forming them of strip metal or
wire they can be produced by bending the required length into the desired shape.
When employing a dished perforated plate connection, the same acts as a spring
between the studs or pins and the supplemental nut, thereby causing the latter to
act upon the studs or pins with spring pressure.
When employing a circular shaped connection for the pins or studs, the main nut
may be formed without grooves in the edges, but when employing a semi-circular
curved, or straight connection, grooves will be required in the edges of the main

page_text: nut which in some cases will be on opposite edges of the nut and in others on
adjacent edges in which latter case the straight part connecting the studs or pins
together will stand across a corner of the main nut.
In all cases, except when employing a dished circular connection, the heads of
the studs or pins will stand up above the level of their connections.
D
1
WILLIAM JOHN CLAPP.
BENJAMIN JOSEPH BARNARD MILLS.
By Harris & Mills,
23, Southampton Buildings,
Agenta.
We WILLIAM JOHN CLAPP of Nantyglo in the County of Monmouth Surgeon and
BENJAMIN JOSEPH BARNARD MILLS of 23 Southampton Buildings in the County of
Middlesex, Patent Agent, do hereby declare the nature of the said Invention for
"IMPROVEMENTS IN MEANS FOR LOCKING NUTS" and in what manner the same is
to be performed to be particularly described and ascertained in and by the following
statement:
The present Invention has for its object improvements upon an invention for
which the said William John Clapp obtained provisional protection dated the
17th July last No 10281 and relates to certain constructions of parts whereby the
cost is reduced and other advantages gained.
In the provisional specification of the said William John Clapp, separate loose or
independent pins or studs were employed in connection with a supplemental nut to
obtain the locking action; this employment of separate loose or independent studs
or pins involved the necessity of providing holes through the body or at the edges
of the main nut to receive such studs or pins and retain them separately in position
thereby increasing the cost incurred in producing the main nut.
Now according to the present invention we connect the pins or studs together in
pairs thereby enabling us to employ a main nut of the ordinary form without the
holes above mentioned, or a main nut with grooves on its edges which are of such
form as to enable them to be produced in the same operation with the shaping of the
nut or without re-handling of the same. The part connecting the studs or pins
may be in the form of a perforated plate, dished or otherwise, or of a ring of wire
passing loosely over the bolt or it may be in the form of a semi-circular curved or
straight piece of sheet or strip metal or wire. By forming the studs or pins and
their connecting piece of sheet metal they can be produced by the stamping process

page_text: and when forming them of strip metal or wire they can be produced by bending
the required length into the desired shape.
When employing a dished perforated plate connection the samo acts as a spring
between the studs or pins and the supplemental nut, thereby causing the latter to
act upon the studs or pins with spring pressure.
When employing a circular shaped connection for the pins or studs the main nut
may be formed without grooves in the edges thereof but when employing a semi-
circular, curved or straight connection, grooves will be required in the edges of the
main nut which in some cases will be on opposite edges of the nut and in others on
adjacent edges in which latter case the straight part connecting the studs or pins
together will stand across a corner of the main nut.
In all cases, except when employing a dished circular connection, the heads of
the studs or pins will stand up above the level of their connections.
And in order that our said Invention may be more clearly understood and
readily carried into effect we will proceed aided by the accompanying drawings
more fully to describe the same,
DESCRIPTION OF THE DRAWINGS,
In the various Figures like parts are marked with similar letters of reference;
a is a bolt, b is the main nut; cc are studs or pins and d is a supplemental nut,
but instead of employing loose or independent studs or pins c as heretofore we,
according to our present invention connect the pins or studs c c together in pairs
thereby enabling us to employ a main nut 6 of the ordinary form without the holes
herein before referred to or a main nut with grooves on its edges which are of such
form as to enable them to be produced in the same operation with the shaping of
the nut or without re-handling of the same. In the arrangement represented in
vertical section at Figure 1 and in plan at Figure 2, the studs or pins c, c, are
connected together by a ring formed plate c¹ made of one piece with the same and
formed in such manner as to cause the heads of the pins or studs, c, c, to stand up
above the side plate c¹ thereby enabling the supplemental nut d to act directly
upon the heads of the studs or pins c c. In this arrangement the main nut b is of
the ordinary form without any holes to receive the studs or pins c, c, which latter
lie closely on each side of said main nut b.
Figure 3 is a vertical section and Figure 4 is a sectional plan showing another
arrangement and Figures 5 and 6 are respectively a plan and side view of the
connected studs or pins c c separately. In this arrangement the studs or pins co
and their connecting plate are formed in a similar manner to those shown at
Figures 1 and 2 except that the studs or pins c c are closer together and are
received in side grooves b₁ formed in the main nut b which side openings 61 are
broader along their outer side than along their inner side thereby facilitating
manufacture. Figures 7, 8, 9 and 10 represent similar views to Figures 3, 4, 5
and 6 of an arrangement differing therefrom only in the fact that the connecting
plate cis dished in such a direction as to enable the same to act as a spring
between the supplemental nut d and the studs or pins c c which arrangement
causes the supplemental nut & to act upon the studs or pins c c with spring
pressure.
At Figures 11 to 14 I have represented another arrangement which differs from
that described with respect to Figures 3 to 6 in the fact that the pins or studs.cc
and their connecting part c¹ are formed of one length of wire which is bent and
coiled to produce the desired shape.
Figures 15, 16, 17 and 18 represent another arrangement which is of similar
character to that shown at Figures 3 to 6 except that the connecting plate c¹
extends only half round the bolt a.
Figures 19, 20, 21 and 22 represent another arrangement in which the main
nut b has formed near two opposite corners, two pairs of grooves b¹ in the edges
thereof to receive two pairs of pins or studs c c which with the connecting parts c¹

page_text: are in the form of staples made from wire and preferably made to spring slightly
towards each other at their points whereby they are enabled to retain their position
on the main nut even when the supplemental nut is not in position on the bolt.
We would here. remark that the method of manufacture and the shape of the
parts may be varied without departing from the peculiar character of our
invention.
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
In means for locking nuts in which studs or pins c c are employed in combination
with a main nut b and supplemental nut & connecting such studs or pins cc
together in pairs by means of a plate or connecting piece c¹ substantially as herein
shown and described and for the purpose stated.
Dated this 2nd day of June 1885.
W. J. CLAPP.
B. J. B. MILLS.
By Harris & Mills,
23, Southampton Buildings,
Agents..