Improvements connected with Union Nuts or like Connections for Pipes.
Year: 1896

page_text: Date of Application, 24th Apr., 1896-Accepted, 30th May, 1896
COMPLETE SPECIFICATION.
Improvements connected with Union Nuts or like Connections
for Pipes.
1 EDWIN MARTIN of 68, West India Dock Road, County of London,
Coppersmith 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:-
My invention has for object the construction of two half nipples or ferrules for
use in combination with an union nut by which two adjoining ends of pipes can be
connected.
The half nipples or ferrules and their union nut are capable of many variations
in shape according to the uses for which such may be desired.
As an example of my invention 1 make a nipple or ferrule in say two pieces or
halves, one having a V or equivalent hollow in its edges and the other a
corresponding shape of projections, so that when two of such halves aro brought
together to form a tube the projections of one fit the hollows of the other and
vice versa to ensure each half coming together at the proper place, the nipple or
ferrule being screwthreaded for the reception of an union nut to bond the two
halves together so that the article can be utilized in conjunction with a screw ring,
a screw flange or the like for jamming up any kind of packing for connecting up
tho ends of two pipes.
The invention is more particularly available for what are known as unions in
which one union nut can over-run a collar for conuecting up the ends of two
pipes.
My invention will be understood by reference to the annexed drawings.
Figure 1 represents two halves of a nipple or forrule with the hollows and
projections in the edges, both halves being screw threaded both internally and
externally.
Figure 2 shows a modified shaped half ferrule, screw threaded on the outside
only.
Figure 3 indicates two halves of a nipple or forrule surrounded or enclosed by an
union nut which binds them together, also one arrangement for coupling up two
pipe ends.
Figure 4, represents a coupling up of an union nozzle and a pipe.
Figures 6 and 6 show sectional olevations of my invention of half nipples or
ferrules at right angles to each other as regard to Figure 1.
Figure 7, a sectional elevation with regard to Figuro 2.
Figure 8, indicates the use of two separate pairs of half nipples or forrules with
their union nuts for coupling up the ends of two flanged pipes.
The same letters of reference relate to the same parts in the several figures.
A. Figure 1, half nipples or ferrule screwthreaded internally and externally.
B. V shaped hollows in each edge of one half nipple or ferrule. C. V shaped
projections on edges of other half nipple or ferrule. D. flange. E. neck.
Two of said half nipples or ferrules constitute a full nipple or ferrule. F screw.
threaded extension on Figure 2, the inner surface being plain. G collar with plain
end and which when screwed on to the two half nipple or ferrule, bond them
together as one, the three pieces constituting a nut.
H. H. collars or flanges on end of two adjoining pipes or nozzles I. I.
In using my invention I first place the union nut over the end of one of the pipes

page_text: the internal diameter of the union nut being sufficiently large to go over the collar,
if there be one.
I then place the two half nipples or ferrules on the pipe and draw the nut
back for the threads to engage and I screw the nut tightly up to combine the
three articles and if the collar or flange of the end of the opposite pipe be screw-
threaded the ends of the two pipes can bo secured. If neither pipe end has a
screw threaded collar or flange I repeat the operation for both pipes and utilise the
threaded neck on.one article for engagement of the other article and screw up.
When the screw threads of an ordinary union uut have been stripped from any
cause I slip the union nut back and pass my half ferrules over the ends of the
pipes and join up as before this obviating the necessity of unsoldering or
unbrazing the old nozzle or collar or flange from the pipes for the replacing and
Boldering or brazing on of fresh unions or collars.
My invention is applicable to all kinds of pipes whether gas, steam or water
and by its use great saving of labour is effected by reason of its easy application
the pipes not being required to be moved from their position to make a fresh
union when one goes wrong by bursting or otherwise.
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
The construction and employment of two half nipples or ferrules, an union nut
screwable thereon, constituting when combined a means for joining the ends of
pipes as described and substantially as shown on the annexed drawings.
Dated this 94th day of
H. GARDNER,
Patent Agent, 166. Fleet Street, London,
Agent for the said. E. Martin.
H. GARDNER,
Patent Agent, 166. Fleet Street, London,
Agent for the said. E. Martin.