Improvements in Pipe and Pipe-rail Joints.
Year: 1899

page_text: Date of Application, 9th May, 1899-Accepted, 14th Oct., 1899
COMPLETE
35
Improvements in Pipe and Pipe-rail Joints.
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I, ROBERT COOKE SAYER, of 11, Clyde Road, Redland, Bristol, Civil Engineer,
hereby declare the nature of this invention and in what manner the same
to be performed, to be particularly described and ascertained in and by the
ollowing statement:-
The object is to prevent leakage at the joints of pipes, when carrying pressure,
abject to heavy rolling weights, and formed to allow contraction and expansion,
nable them to be suspended, and to remove any pipe without damage.
GENERAL DESCRIPTION.
The pipes are ribbed, connected by fish plates having elliptical holes that allow
the desired expansion. The end of one pipe has a socket and both ends a bevelled
face, packing rests in the chamber formed between the ends leaving a space out-
side, a bevel sided split spring ring acts against the packing but is retained by
a swivel catch until the next pipe is put in place, which carries a hammer to
thrust it over and release the spring to thrust the packing firmly into place.
Pressure admitted to the pipes acts on ring and packing to keep the joint tight
when expanding and contracting.
DETAIL DESCRIPTION WHERE
Fig. 1 is an elevation of a joint rail.
Fig. 2 a sectional plan of it.
Fig. 3 a cross section at a-b on Fig. 2.
Fig. 4 in part, a cross section of a pipe not having through bolts or plates.
Fig.
5 a longitudinal section through the joint.
Fig. 6 in part, a section of the split ring with catch.
Fig. 7 a plan of the catch.
The rails, or pipes 1 and 101 have flanges 2 annular chamber 3 in which a
split ring 4 is placed to thrust the packing 5 against the bevel faces 6 and 7 of
the ends of adjacent pipes 1 and 101, which are retained by plates 8 and 9 when
drawn within bevel faces of the flanges 2 by bolts 10 being screwed into the
sockets 11 of plates or bolts 12, the bolts 10 have shoulders 13 to take against
washers 14. When the bore of a pipe is required free the bolts 10 of Fig.
used.
!
are
The ring 4, Figs. 6 and 7, has a catch 15 swivelled at 16 with a hook 17 to
take over the pin 20 and the pipe 101 a hammer 18 swivelling at '19.
THE WORKING IS AS FOLLOWS.
The plates 8 and 9 keep the pipes 1 and 101 in position horizontally and ver-
tically, the packing 5 is put into the chamber 3, the ring 4 is contracted slipped
into the trough, but when 4 is large and strong it is retained by the catch 15
the hammer 18 of the pipe 101 is projected, the pipe put into place, the hammer
meets the catch 15 releases the spring ring 4, and the plates 8 and 9 are screwed
40 up.
:
The pressure admitted to the pipes acts on the packing 5 and ring 4 forcing th
former against the faces 6 and 7. As the pipes contract and part the pressur

page_text: and spring 4 force the packing 5 out to slide down the faces 6 and 7. As the
pipes expand and draw together the packing 5 and ring 4 are forced up the
faces 6 and 7. Fig. 5 shows a case of large expansion by heat with one pipe
inside the chamber 3. When it is required to take out a pipe adjacent joint
plates 8 and 9 are taken off, the pipe slid out laterally thus contracting the ring 4
and thrusting it and the packing 5 and hammer 18 into the pipes 1 and 101.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is:-
Providing pipes or pipe rails with joint plates 8 and 9, the pipe 1 with a
chamber 3, and both 1 and 101 with bevel faces 6 and 7 packing 5 in the
chamber 3 bevel sided split spring ring 4 to thrust the packing into the chamber 3
a catch 15 to the ring 4 and a hammer 18 on the pipe 101 to release the
spring and allow pressure in the pipes to thrust the ring 4 and packing 5
against the faces 6 and 7 while allowing them to contract or expand to limits
fixed by elliptical holes in the plates 8 and 9, substantially as described and
shown on the drawing.
Doted this 8th dow of Now 1900