Year: 1897

page_text: Date of Application, 8th Jan., 1897--Accepted, 17th Apr., 1897
Manufacturer do hereby declare the nature of this invention and in what manner
the same is to be performed, to be particularly described and ascertained in and by
the following statement:-
This invention has for its object a coupling-box intended for joining the ends of
two pipes.
In the accompanying drawings which illustrates this invention :-
Figure 1 is a complete view of the coupling-box mounted on a pipe.
Figure 2 is a transverse section thereof.
Figure 3 a longitudinal section, and
Figure 4 is a view in longitudinal section of a modification.
Throughout the views similar parts are marked with like letters of reference.
The coupling-box is composed of two cast-iron pieces, tempered, or of forged
iron. The two halves A, A' are each furnished with two dove-tail tenons B, B¹
both alike, on which two hold fasts C, Clare passed to hold them together. This
coupling-box thus locked needs only to be furnished with a single thread.
The way in which it is to be used is as follows:-In putting the coupling-box on
the pipe, care must be taken that the two threaded extremities of the pipes shall
be united at their plane surfaces; then the two halves of the box are placed on the
two pipe ends. This being done, the two holdfasts are to be slipped on the dove-
tail tenons and the coupling-box is tightened to bring the pipes together. By the
use of this coupling-box, pipes can be quickly and conveniently joined and
separated.
To join a tube with a flange to a tube with a screw-threaded end, the two halves
of my coupling-box are provided on the inside, with a corresponding semi-circular
mortice, to form an annular channel in which the flange of one of the pipes lodges.
That part of the coupling-box intended to retain the other tube has the usual
screw-threading, whilst the part between the channel and the adjacent periphery is
smooth. This last-named part must only be just long enough to ensure proper
strength, so that the screw-threaded portion may be sufficiently prolonged.
E is the end of the flanged pipe, e is the flange, F is the annular recess reserved
in the two halves of the coupling-box A, A1; G is the pipe with the screw-
threaded end, C shews the holdfasts.
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 :-
:
(1) A coupling-box, made in two pieces, with holdfast sliding on dove-tail tenons,
adapted to join the ends of the two pipes, substantially as hereinbefore described,
and illustrated by the accompanying drawing.
(2) A modification of the coupling-box specified in the preceding claim in which
an annular channel is formed in the two halves of the coupling-box, the said
channel being adapted to receive the flange of a pipe for the purpose of connecting

page_text: a pipe with a screw-threaded end to a flanged pipe, the whole substantially as
herein before described and illustrated by the accompanying drawing.
Dated this 8th day of January 1897.
BERT E. PHILLIPS, Assoc. M. Inst. C.E., M.I. Mech. E.,
Consulting Engineer and Patent Agent,
70, Chancery Lane, London, W.C., Associate Agent.