Improvements in the Fastenings of Ohains for Securing Cycles and other purровев.
Year: 1897

page_text: PROVIDIUNAL OF ECIFICATION
Improvements in the Fastenings of Ohains for Securing Cycles and
other purровев.
I, JOSIAH PUMPHREY, of 132, Angelina Street, Birmingham, in the County of
Warwick, Manufacturer, do hereby declare the nature of this invention to be as
follows:-
-
My invention has for its object "Improvements in the fastenings of chains for
securing cycles and other purposes" by which I provide a fastening which is easy
manipulated and at the same time is effectual in action while being cheap and
easy to manufacture.
un-
In carrying my invention into effect I prefer to utilize a chain which is formed
after the manner of cycle driving chains i.e., one which will bend in one plane
while being rigid in the other. To one end of this length of chain I attach a
screw pin having a milled head cap and at the other end I mount a tapped socket
having a plain cap which socket is free to turn on its attachment, and on this
socket I provide two square faces or other shaped arrangement which by means
of a key to fit enables the socket to be screwed tightly against the head of the
sorew thus wedging the one against the other sufficiently to prevent it being
done without the aid of a key. The milled head to the cap is provided to mislead
anyone trying to unscrew the fastening and a similar milled ring may be mounted
to turn freely on the socket. This fastening is arranged as a continuation of the
chain, but in case I prefer to have it projecting from the chain I provide an eye-
let link on one end of the chain and a screw pin on a similar link at the reverse
end of the chain which screw pin is made to pass through the aforementioned eye-
let where it is secured by a nut having a suitably shaped head to receive a box
key by which it can be readily locked by being screwed so as to wedge against
the links. To prevent the nut being lost or turned by other means than the key
I provide a spring steel washer between the nut and the links the edges of which
washer is split and turned over all round so as to form a protecting cover to the
nut and at the same time by engaging with a groove in the key the nut is re-
tained to the key when not in use.
Doted this 8th day of December 1897.
Improvements in the Fastenings of Chains for Securing Cycles and
other purposes.
I, JOSIAH PUMPHREY, of 132, Angelina Street, Birmingham, in the County of
Warwick, Manufacturer, do hereby declare the nature of this invention and in

page_text: what manner the same is to be performed, to be particularly described and ascor-
tained in and by the following statement:-
My invention has for its object "Improvements in the fastenings of chains for
securing cycles and other purposes" by which I provide a fastening which is easy
manipulated and at the same time is effectual in action while being cheap and
easy to manufacture.
In order that my invention may be clearly understood and more easily carried
into practise I have appended hereunto a sheet of drawings upon which
Figure 1 is a front elevation of the chain and attachment.
Figure 2 is a side elevation of Figure 1.
Figure 3 is an enlarged section through the fastening shewn in Figures 1 and 2.
Figure 4 is a front elevation of the screw in Figure 3.
Figure 5 is a front elevation of the socket in Figure 3.
Figure 6 is an enlarged view of the ends of the chain when unfastened showing
a modification in the fastening.
Figure 7 is a section of l'igure 6 when fastened.
Figure 8 is a view of the shield for key and
Figure 9 is an elevation of part of the key.
In carrying my invention into effect 1 prefer to utilize a chain which is formed
after tho manner of cycle driving chains i. e., one which will bend in one plane
while being rigid in the other as shewn by A Figure 1.
To one end of this length of chain I attach the screw pin B having the milled
head cap bund at the other end I mount the tapped socket C'having the plain
cap C which socket is free to turn on its attachment and on this socket I provide
two square faces or other shuped arrangement C which by means of a key Denables
the socket C to be screwed tightly against the head B of the screw thus wedging
the one against the other sufficiently to prevent it being undone without the aid
of a key. The milled head b to the cap B is provided to mislead anyone trying
to unscrew the fastening and a similar milled ring may be mounted to turn freely
on the socket. It is not absolutely necessary to use a key with this fastening as
the collar may be screwed up with the lingers sufficiently to secure it fairly
tightly.
This fastening is arranged as a continuation of the chain but in case I have it
projecting from the chain I provide the eyelet link E at the one end of the chain
and a screw pin on a similar link at the reverse end of the chain which screw
pin is made to pass through the aforementioned eyelet E where it is secured by
the screw nut H which is provided with a suitably shaped head or projection
to receive the box key K by which it can be readily locked by being screwed so
as to wedge against the link E.
To prevent the nut H being lost or turned by other means than the key K I
provide the spring steel washer M between the nut and the links the edges of
which washer are split and turned over all round at m' to form a protecting cover
to the nut and at the same time by means of the spring cover being turned in
at and engaging with the groove or projection in the key the nut H is
retained to the key K when not in use. I may prefer to cover the chain with an
india rubber tube to prevent scratching the machines.
Having now particularly described and ascertained the nature of my said in-
vention and in what manner the same is to be performed I declare that what I
claim is:-
1st. In chains for securing cycles and other purposes the combination of the
chain A screw pin B and pivoted socket C substantially as and for the purpose
herein set forth and illustrated.
2nd. In chains for securing cycles and other purposes the combination of the
pivoted socket C screw pin B and milled edge substantially as and for the
purpose herein set forth and illustrated.

page_text: 3rd. In fastenings for chains for securing cycles and other purposes the nut H
and spring cover M substantially as and for the purpose herein set forth and
illustrated.
Dated this 8th day of September 1908
LEWIS WM. GOOLD,
Agent for Applicant, 5, Corporation Street, Birmingham.