IMPROVEMENTS IN PIPE JOINTS
Year: 1880

page_text: LETTERS PATENT to Nicolas Talard, of Boulevard Magenta, 47, at Paris, in
the Republic of France, Mechanician, for an Invention of "IMPROVEMENTS IN
PIPE JOINTS."
PROVISIONAL SPECIFICATION left by the said Nicolas Talard at the Office
of the Commissioners of Patents on the 7th December 1880.
NICOLAS TALARD, of Boulevard Magenta, 47, at Paris, in the Republic of France,
Mechanician. "IMPROVEMENTS IN PIPE JOINTS."
My Invention has for its object to afford ready means for securing together the
ends of pipes without the use of screw bolts or screw couplings, so that the joint
may be rapidly and effectually connected and disconnected.
For this purpose the ends of the pipes may either have sockets and spigots fitting
into each other, or their end surfaces may merely butt against each other, suitable
packing being provided between the meeting surfaces in either case if necessary to
make a tight joint. The end of the one pipe has lateral lugs, to which are pivotted
links, the free ends of which have excentrics or cams that can be turned by means
of levers or keys. The end of the other pipe has projecting jaws corresponding in
position to the lugs on the other pipe, so that for making a joint between the two
pipes their ends are brought together, and the said links of the one pipe are
introduced between the jaws of the other, where upon the excentrics or cams are
turned by their levers or keys, so as to press against the jaws with sufficient force
to bring the two ends of the pipes tightly together, and thus to make a perfectly
tight joint. By turning the cams or excentrics in the contrary direction the
joint is as rapidly disconnected again. When the excentrics are actuated by levers
fixed thereto the latter are so arranged that when the excentrics are tightened
up for making the joint, the levers lie close against the sides of the pipe.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Nicolas Talard in the Great Seal Patent Office on the 3rd June
1881.
NICOLAS TALARD, of Bouvelard Magenta, 47, at Paris, in the Republic of France,
Mechanician. "IMPROVEMENTS IN PIPE JOINTS."
My Invention has for its object to afford ready means for securing together the
ends of pipes without the use of screw bolts or screw couplings, so that the joint
may be rapidly and effectually connected and disconnected."
For this purpose the ends of the pipes may either have sockets and spigots fitting
into each other, or their end surfaces may merely butt against each other, suitable
packing being provided between the meeting surfaces in either case if necessary to
make a tight joint. The end of the one pipe has lateral lugs, to which are pivotted
links the free ends of which have eccentrics or cams that can be turned by means
of levers or keys. The end of the other pipe has projecting jaws corresponding in
position to the lugs on the other pipe, so that for making a joint between the two
pipes their ends are brought together, and the said links of the one pipe are
introduced between the jaws of the other, whereupon the eccentrics or cams are
turned by their levers or keys, so as to press against the jaws with sufficient force
to bring the two ends of the pipes tightly together, and thus to make a perfectly
tight joint. By turning the cams or eccentrics in the contrary direction the joint
is as rapidly disconnected again. When the eccentrics are actuated by levers fixed
thereto the latter are so arranged that when the eccentrics are tightened up for
making the joint the levers lie close against the sides of the pipe.
DESCRIPTION OF THE DRAWINGS.
Fig. 1 shews a plan of the spigot or male half joint; Fig. 2 shews a section on
line a, b, Fig. 1; Fig. 3 shews a plan of the socket or female half joint; Fig. 4
shews a section on line c, d; Fig. 5 shews the two half joints secured together.
The male half joint A, which is secured in any known manner to the end of the
tube or hose, has, firstly, a projection or spigot t, which fits into the recess or
socket t¹ of the female half joint B, and, secondly, a caoutchouc ring o, which butts
against the meeting surface of B when fitted together. Both half joints have
forked lugs D, D, U¹, D', those D of the female part having pivotted to them by
pius n links C, to the other ends of which are pivotted levers L by means of pins m;
these levers have on each side eccentric or cam shaped projections M, so that when
the joints are fitted together, and the links Care placed in the forks D¹ of the
joint A with the levers extended in the contrary direction to that shewn in Fig. 5,
the shortest radii of the cams will be presented to the surfaces of D₁; if now the
levers be turned into the position shewn in Fig. 5 the cams M will draw the half
joints close together, compressing the caoutchouc ring o between them, so as to
make a tight joint, and they will be securely held in the position shewn by the
flat faces of the cams being brought to bear upon the faces of D¹. On again turning
up the levers L, and drawings the links C out of the forks, the joint will be as
rapidly disconnected.
Having thus described the nature of my Invention, and in what manner the same
is to be performed, I claim,―
First. In a pipe joint the combination of the links C pivotted to the one half
joint with the levers L, having cams M that are caused by turning the levers to
bear upon the forks D' of the other half joint, so as to draw the two halves close
together, substantially as herein described.

page_text: Second. In a device for securing pipe joints the use of pivotted levers L having
cams M with flat faces, operating as herein described.
In witness whereof, I, the said Nicolas Talard, have hereunto set my hand
and seal, this Second day of June, in the year of our Lord One thousand
eight hundred and eighty one.
NICOLAS TALARD. (LS.)