IMPROVEMENTS IN UNIONS OR COUPLINGS FOR PIPES, HOSE AND OTHER ARTICLES
Year: 1883

page_text: LETTERS PATENT to Nathan Thompson of 23 Southampton Buildings in the
County of Middlesex for an Invention of IMPROVEMENTS IN UNIONS OR
COUPLINGS FOR PIPES, HOSE AND OTHER ARTICLES
PROVISIONAL SPECIFICATION left by the said Nathan Thompson at the
Office of the Commissioners of Patents on the 1st October 1883.
NATHAN THOMPSON of 23 Southampton Buildings in the County of Middlesex
IMPROVEMENTS IN UNIONS OR COUPLINGS FOR PIPES, HOSE AND OTHER ARTICLES.
The Invention has for its object improvements in unions or couplings for pipes,
hose and other articles and relates to a novel construction of parts whereby great
facility is afforded for connecting and disconnecting two lengths of pipe or hose,
or for coupling together other articles, whilst after the joint has been effected, the
two lengths or articles are prevented from becoming accidentally disconnected.
For this purpose I form on one end of a length of pipe or other article a flange
which on one face is formed with a socket to receive a plain flange formed on the
adjacent length of pipe or other article. The first named flange is formed on the
other face with two or more inclines and the said flange has two or more slots or
openings formed in the edge thereof. Over the other pipe or article is passed a
coupling piece which takes a solid bearing against the plain flange formed on said
pipe or article.
This coupling piece is formed with a cylindrical cavity to receive the flange and
inclines of the first pipe or article, and it is formed with two or more inwardly
projecting clips formed on their inner edge with teeth or recesses. The first named
pipe or article has also formed thereon a socket in which is placed a spring catch
which acts in combination with the teeth or recesses on the aforesaid clips.
When it is desired to couple two lengths of pipe or hose or other articles the
two parts of the coupling are brought together endwise, and then turned axially
until the packing between the two lengths of pipe or hose is sufficiently compressed,
the spring catch then becomes engaged with one of the aforesaid teeth or recesses
and prevents back action of the parts.

page_text: packing piece and a plain flange b₁ formed on the adjacent length of pipe b or
other article. The flange a' is formed on the opposite face to that before referred
to with two or more inclines a³ and the said flange a' has two or more slots or
openings a formed in the edge thereof. Over the pipe b is passed a coupling
piece c which takes a solid bearing against the plain flange b' formed on said pipe
or article b.
This coupling piece c is formed with a cylindrical cavity c¹ to receive the
flange al and inclines a³ of the pipe or other article a and it is formed with two or
more inwardly projecting clips c² which are formed on their inner edge with teeth
or recesses c³. The pipe or other article a has also formed thereon a socket a³ in
which is placed a spring catch a which acts in combination with the teeth or
recesses c³.
The pipe or other article a is provided with lugs a7 and the coupling piece e
with lugs c by which such parts can be held and turned.
When it is desired to couple two lengths of pipe hose or other articles the two
parts of the coupling are brought together endwise, the projecting parts of the
flange a' entering the spaces between the clips c of the coupling piece c, as shown
at figure 2, then by turning the parts a and c axially in contrary directions to each
other the projecting parts of the flange a' are caused to pass under the clips c² as
shown at Figure 3. and, by the inclined shape of the surfaces in contact, the
packing d is caused to be compressed between the ends of the parts a and b and
when sufficiently compressed the spring catch a' becomes engaged with one or
other of the teeth or recesses c³ and thereby prevents back action of the parts.
By pressing on the exterior of the spring catch a and turning the parts in the
reverse direction they can be readily disconnected from each other.
In the modification represented at Figures 11, 12 and 13 the teeth or recesses c³
are formed on the outer face of the clips c instead of upon their inner edge and
the spring catch a is caused to slide in a direction longitudinally of the tube a
instead of transversely thereto as in the arrangement represented at Figures 1
to 10.
In the modification represented at Figures 14 to 22 the teeth or recesses c³ are
transferred to the edge of the flange a' and the spring catch a³ is transferred to the
coupling piece c
Having thus described the nature of my said Invention and the mode in which
I carry the same into effect I would have it understood that what I claim is
First. The improved union or coupling consisting of a coupling piece c formed
with a cylindrical cavity c¹to receive the flanges a b₁ and with clips c³ to act in
combination with the inclines as substantially as herein shown and described and
for the purpose stated, and
Second. The coupling piece c formed with cylindrical cavity c¹, and clips c² to
act in combination with flanges a¹ b¹ and inclines a³ together with spring catch a
and teeth or recesses c³ substantially as herein shown and described and for the
purpose stated.
In witness whereof I the said Nathan Thompson have hereunto set my hand
and seal this Twenty ninth day of March in the year of our Lord One thousand
eight bundred and eighty four.
NATHAN THOMPSON (L.S.)