Joints and Connections for Rods, Tubes, and the like.
Year: 1896

page_text: Date of Application, 1st July, 1896
Complete Specification Left, 27th Mar., 1897-Accepted, 12th June, 189?
Joints and Connections for Rods, Tubes, and the like.
I, EDWARD CHARLES CHRISTMAS, of 55 Dartmouth Road, Forest Hill, in the
County of Kent, Builder and Decorator, do hereby declare the nature of this
invention to be as follows:-
The object of this invention is to so unite lengths of rods, tubes and the like
that they shall not become disconnected by turning them in either direction.
In carrying out this invention a socket is constructed to receive one end of a rod
or tube to be joined and has secured to it a projecting plug of square or other-
suitable section slightly tapered towards the end, and mounted on this projecting
plug is an internally screwed union nut. A double socket is also provided one end
to receive another length of rod or tube and the other end the beforementioned
projecting plug, the said plug socket being screw threaded externally to receive the
beforementioned union nut, by which the aforesaid projecting plug is secured in its.
socket, thereby firmly uniting the two rods or tubes together. To prevent the
union nut from becoming unscrewed by friction a collar is formed on each of the
sockets, slightly larger in diameter than the said union nut, which prevent it from:
rubbing against the insides of drain pipes and the like.
Dated this 1st day of July 1896.
WHEATLEY & MACKENZIE,
40 Chancery Lane, London, W.C., Agents..
Joints and Connections for Rods, Tubes, and the like.
I, EDWARD CHARLES CHRISTMAS, of 55 Dartmouth Road, Forest Hill, in the
County of Kent, Builder and Decorator, 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 :-
The object of this invention is to so unite lengths of rods, tubes and the like-
that they shall not become disconnected by turning them in either direction.
The invention is especially suited for use in coupling rods to be used in cleaning
drain pipes, drawing electric cables into pipes; it may also be used for couplings:
shafts and the like.
The annexed drawings illustrate a joint made in accordance with this invention.
Figure 1 is a side elevation of a rod with a socket piece attachment, and Figure 2:
is an end elevation of the same.
Figure 3 is a side elevation of another rod to connect with the first, it also has a
socket attachment, and Figure 4 is an end elevation of the same.
Figure 5 is a side elevation of the two rods united, and Figure 6 is a section of
the same.
Figures 7 and 8 are sections on the lines 7. 7-8. 8 Figure 6.

page_text: a a are rods which if the apparatus is for passing through drains or for such like
use may be of cane. Each rod receives a socket piece, the socket piece of the one
rod is provided with a nozzle on which a screw thread 6 is cut and in the nozzle the
cavity c is formed. The socket piece of the other rod to be connected with the first
has solidly fixed to it in any convenient manner a tongue piece d terminating in a
projection e of a form to fit the cavity c and this form must be such that the one
part cannot turn in the other. On the tongue pieced a screw nut fis provided and
a collar . The screw and nut with the collar form a screw union. g g are
projections on the two socket pieces of such dimensions that the nut fis kept out
of contact with the supporting surface when the rods are thrust through pipes or
other passages.
hh are holes provided for the escape of dirt which may find its way into the
cavity c when the rods are detached.
Thus the rods are connected in such manner that one rod cannot turn inde-
pendently of the other and so that they can only be detached by turning the nut
which is effectually protected whilst the reds are in use.
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 :-
1. A joint or connection, substantially as described, for rods, tubes and the like,
and consisting of a screw union, with which is combined a projection on the one
part fitting into a cavity on the other, and thereby preventing unscrewing by the
turning of the rods or tubes.
2. In a joint or connection in accordance with the preceding claim, the enlarge-
ments g g which support the rods or tubes as they are thrust along a pipe or
passage and keep the nut fout of contact with the surface on which the enlargements
rest.
3. A joint or connection substantially as shown by the annexed drawings.
Dated this 24th day of March 1897.
EDWD. C. CHRISTMAS.