METALLIC PIPE JOINT FOR FIRE ENGINES AND CONDUITS OF DIFFERENT KINDS
Year: 1881

page_text: LETTERS PATENT to Edouard Cooman and Pierre Dallard, of No. 13, Rue
Montigny, in the City of Paris, Gentlemen, for an Invention of "METALLIC
PIPE JOINT FOR FIRE ENGINES AND CONDUITS OF DIFFERENT KINDS."
PROVISIONAL SPECIFICATION left by the said Edouard Cooman and
Pierre Dallard' at the Office of the Commissioners of Patents on the 26th
May 1881.
EDOUARD COOMAN and PIERRE DALLARD, of No. 13, Rue Montigny, in the City
of Paris, Gentlemen. " METALLIC PIPE JOINT FOR FIRE ENGINES AND CONDUITS
OF DIFFERENT KINDS."
The Invention refers to pipe couplings or joints, and consists in the mode of
forming the pipe ends in combination with two hinged claws or fasteners and
rubber scating, so that the pipes may be readily connected and disconnected. The
Invention is performed by making the ends of the pipes to project so far as a half
section of their length is concerned, in such fashion that the projecting half of one
pipe will lie on or over, fit, and abut against the similar projecting half section of
the other pipe. A claw attachment is hinged to each pipe, which is furnished
with a projecting piece or rim on which the claws catch or lock. Tho inner
periphery of cach pipe has a recessed channel and holds a rubber or leather
washer,

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Edouard Cooman and Pierre Dallard in the Great Seal Patent
Office on the 26th October 1881.
EDOUARD COOMAN and PIERRE DALLARD, of No. 13, Rue Montigny, in the City
of Paris, Gentlemen. " METALLIC PIPE JOINT FOR FIRE ENGINES AND CONDUITS
OF DIFFERENT KINDS."
The Invention refers to pipe couplings or joints, and consists in the mode of
forming the pipe ends in combination with two hinged claws or fasteners and
rubber seating, so that the pipes may be readily connected and disconnected.
The Invention is performed by making the ends of the pipes to project so far as
a half section of their length is concerned, in such fashion that the projecting half
of one pipe will lie on or over, fit, and abut against the similar projecting half
section of the other. pipe. A claw attachment is hinged to each pipe which is
furnished with a projecting piece or rim on which the claws catch or lock. The
inner periphery of each pipe has a recessed channel and holds a rubber or leather
washer.
The Drawings hereunto annexed will show how the Invention may be practically
carried into effect. A is the whole joint when shut, and is a section, according to
the letters r, s, t, in front view X; B shows the joint when opened. The joint is
divided into two parts by raising the claws k, each part being constructed as
follows:-
B is a cylindrical tube whose grooved end c is made for fitting the hose or pipe;
d is a circular flange provided with two ears e, between which the claw is placed.
The claw is pivoted on a pin serving as a hinge. A shallow groove f is provided
for lodging the edge g of the opposite part of the joint.
On the side opposite to the ears e the flange d is provided with a tappet / which
is slightly grooved to fit the claw of the other part of the joint.
On the other side of the flange there is a rubber pipe o. A cylindric piece g
envelops the half of its circumference, its width being somewhat greater than the
double width of pipe o.
The end of the half cylinder g is somewhat tapering at the edge, and is made to
fit into the groove or gorge f of the second part of the joint.
The half cylinder g forms part of the tube B. k is the claw for shutting the
joint, which is hinged in the ears e by means of a pin. The end of the claw is
made somewhat thicker to fit into the hollow part of the 'tappet h. Two notches
are provided for admitting of lifting the claws with the fingers. o represents a
washer of india rubber which projects outwards and is rivetted to the tube B.
Figures 1 and 2 show variations of the Invention, the tappet / being placed on
the part g instead of d, and Figure 2 represents the part D made movable on the
part B.
CLAIMS.
A water tight joint consisting of two similar parts furnished with claws, and
admitting of the joint being instantaneously closed and tightened, substantially as
(L.S.)
E. COOMAN.
PIERRE DALLARD. (L.S.)