Improvements in Joints for Connecting Rod or Pole Ends, and for like purposes.
Year: 1893

page_text: Date of Application, 29th June, 1893
Complete Specification Left, 19th Mar., 1894-Accepted, 21st Apr., 1894
Improvements in Joints for Connecting Rod or Pole Ends, and for
like purposes.
CHARLES FREDERICK CHINNERY 96 Kensington Road Southport Lanc.
Furnishings Salesman do hereby declare the nature of this invention to be as
follows:-
-
The object of my invention is the construction of a plug for inserting in tubular
rods or poles for the purpose of fixing the knob or rod end, and my improvement
consists of a piece of sheet iron, steel, or any other metal, cut the width to fit inside
the tube, the ends of the piece of metal are pressed together in shape of sugar
tongs, and the extreme points are turned outwards. When the plug is inserted in
the tube by simply screwing the knob or rod end between the points of the plug,
these are expanded and by pressing against the inside of the tube are securely
fastened.
Dated this 28th day of June 1893.
CHARLES FREDERICK CHINNERY.
COMPLETE SPECIFICATION.
Improvements in Joints for Connecting Rod or Pole Ends, and for
like purposes.
1, CHARLES FREDERICK CHINNERY, of 17 Lord Street, and late of
96 Kensington Road, Southport, in the County of Lancaster, do hereby declare the
nature of my said 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 plug for inserting in tubular
rods or poles for the purpose of fixing the knob, or rod end and my improvement
consists of a piece of sheet iron, steel or other metal cut the right width to fit
inside the tube, the ends of the piece of metal are pressed together in the shape of
a pair of tongs, and the extreme points are turned outwards when the plug is
inserted in the tube by simply screwing the rod end between the points of the plug
these are expanded and by their pressure against the inside of the tube are securely
fastened.
In order that my invention may be clearly understood and more easily carried
into practice I have appendel hereunto a double sized sheet of drawings upon
which I have fully illustrated the nature of my said improvements.
Figure 1, is a sectional elevation through the end of a tube B having the knob D
attached thereto by means of my improved device A which is also shown in section.
Figure 2, is a section through the tube showing the device A in elevation with
the knob end partly attached.
Figure 3, is a section through the tube showing the device in elevation prior to
the attachment of the knob end.
Figure 4, is an end elevation of the device A from the inside of tube.
Figure 5, is a section through the tube showing a modification of the expanding
clip in elevation the knob end being shown as ready for insertion.
In carrying my invention into effect ny expanding clip A is formed from sheet
metal and is cut out with the arms a' and centre hole a the centre part a' being
[Price 8d.]

page_text: stamped pressed or otherwise cupped into a suitable shape to fit the tube or rod B,
the prongs or arms a¹ being pressed in and turned over to form the outward
projections a. The expanding clip thus formed is then placed in the end of the
tube B as shown by Figure 3. The knob end D is provided with the screw stem d¹
which engages with the hole a' in the clip A and as it is screwed home it expands
the arms a outwardly until the noses a are thereby forced against the inside of
the tube, the clip being thereby caused to take a firm grip of the tube and as the
screw d¹ is supported both by the hole a' and at the point by the arms a' so that
no unsteadiness of the knob occurs when once it is fixed. It will be seen that the
cup end a of the expanding clip fits the tube B at the one end while the noses a
are forced against it at the other end thereby preventing any cbance of the knob
being knocked or bent out of centre. In the case of the modification the expanding
clip A is formed with the arms as the nose in this case being formed upon each arm
at a the screw of the knob in this case expanding the points of the arms outwardly
thus bringing each nose a to bear against the inside of the tube and in either case
I may use any number of arms or prongs as for instance three instead of four. By
substituting a right and left hand screw for the knob the ends of two tubes may be
joined together by having an expanding clip in the end of each tube.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
A joint for connecting rod or pole ends and for like purposes consisting of an
expanding clip such as A operated by a screw substantially as and for the purpose
herein set forth and shown upon the accompanying drawings.
Dated this 17th day of March 1894.
GEORGE BARKER,
77, Colmore Row, Birmingham, Agent.