IMPROVED MEANS OR APPARATUS FOR CLOSING AND RE-OPENING SOFT METAL OR LIKE COMPRESSIBLE PIPES FOR CONTAINING OR CONVEYING WATER, GAS, AIR OR OTHER FLUIDS to be as follows:
Year: 1884

page_text: I DANIEL THOMAS BOSTEL of 67 Springfield Road Brighton in the County of
Sussex Sanitary Engineer do hereby declare the nature of my invention for
" IMPROVED MEANS OR APPARATUS FOR CLOSING AND RE-OPENING SOFT METAL OR
LIKE COMPRESSIBLE PIPES FOR CONTAINING OR CONVEYING WATER, GAS, AIR OR
OTHER FLUIDS to be as follows:-
"
-
When it is necessary to remove a cock or valve from a service pipe connected to
a main through which water or gas is flowing it is necessary to shut off the main
before the pipe can be attended to.
The same thing applies if it is necessary to repair such pipes or connect others to
them or otherwise operate on the pipes without shutting off a main or other source
supplying them with water, gas compressed air or other fluids.
The operation can be effected by squeezing the pipe so as to close its bore but
then the difficulty is to open it again.
•
Now my invention consists in an improved means or apparatus by which a
person can squeeze up or close a soft metal or like compressible pipe such as a lead
service pipe and as quickly open out its bore and both operations being effected
from the exterior of the pipe.
I construct a frame having suitable guide plates or grooves in which I arrange
to slide a pair of reversible dies these dies are arranged with one side convex and
the other concave and are fitted with lugs or attached to brackets in which are
formed screw threads to receive adjusting screws.
I prefer to arrange the threads in the lugs of the opposite dies respectively right
and left and pass a similar screw through them. The dies when placed in the
frame can be made to approach to or recede from each other. Now if required to
flatten a pipe the convex sides of the dies are placed in the frame with the pipe
between them the screw rotated and the pipe is dattened or closed.
To open the pipe again the concave sides of the dies are placed against the
elongated ends of the flattened pipe, the screw rotated and the pipe squeezed out
or opened again. The frame can be arranged to take various sized dies and other
means than those mentioned can be adapted for moving the dies without departing
from the principle of my invention.
Dated this sixth day of March 1884

page_text: I DANIEL THOMAS BOSTEL of 67 Springfield Road Brighton in the county of
Sussex, Sanitary Engineer do hereby declare the nature of my invention for
"IMPROVED MEANS OR APPARATUS FOR CLOSING AND REOPENING SOFT METAL OR
LIKE COMPRESSIBLE PIPES POR CONTAINING OR CONVEYING WATER, GAS, AIR OR
OTHER FLUIDS and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement :-
"
When it is necessary to remove a cock or valve from a service pipe connected
to a main through which water, or gas is flowing it is necessary to shut off the
main before the pipe can be attended to. The same applies if it is necessary to
repair such pipes or connect others to them or otherwise operate on the pipes
without shutting off a main or other source supplying them with water gas
compressed air or other fluids.
The operation can be effected by squeezing the pipe so as to close its bore but
then the difficulty is to open it again.
Now my invention consists in an improved means or apparatus by which a
person can squeeze up or close a soft metal or like compressible pipe such as a lead
service pipe and as quickly open out its bore, both operations being effected from
the exterior of the pipe.
I construct a frame having suitable guide plates or grooves in which I arrango
to slide a pair of reversible dies, these dies are arranged with one side convex and
the other concave and are fitted with lugs or attached to brackets to receive
adjusting screws. I may in this form arrange the threads in the lugs of the
opposite dies respectively right and left hand and pass a similar screw through
them. The dies when placed in the frame can be made to approach or recede from
each other.
Now if required to flatten a pipe the convex sides of the dies are placed in the
frame with the pipe between them, the screw rotated and the pipe is flattened or
closed.
To open the pipe again the concave sides of the dies are placed against the
elongated ends of the Hattoned portion of the pipe the screw rotated and the pipe
squeezed out or opened again.
The frame can be arranged to take various sized dies and other means than those
mentioned can be adapted for moving the dies without departing from the principle
of my invention.
And to further elucidate its manner of performance I have caused to be annexed
to this specification the accompanying sheet of drawings and to the figures and
letters of reference marked thereon I now refer.
Fig. 1. is an elevation of one form of apparatus for actuating my special dies.
Fig. 2. an elevation of another form for compressing a pipe.
Fig. 3. a plan of same opened.
Fig. 4. an elevation of same for opening a compressed pipe.
Fig 5. a side view.
Fig. 6 a front view with a pipe to be compressed.
Fig. 7. a front view with a pipe compressed.
Fig. 8. a front view, with the pipe to be re-opened, of my dies fitted to a device
used as a clamp as hereafter described.
In reference to Figure 1. A. A. are the dies with a convex side B and a concave
side O these dies slide in guides jaws or tongues D. D. in the tool E. F is a plate
pressed forward or retracted by a screw G fitted with a fly bolt or nut or like

page_text: The drawing shews a compressed pipe to be opened by turning the screw
forwards the compression of the pipe having been previously effected by the dies
having been reversed.
I can if desired move both dies to or from each other by a right and left handed
screw, the said screw passing through lugs in both dies.
In Figa 2, 3 and 4. H. I are a pair of plates or jaws to grasp the pipe by the die
surfaces B. B. and C. C and furnished with lugs J. J. through which a pin K. pivots
both together. In one plate or jaw I provide a slot L and in the other a square
hole M. to receive the screw pin K¹ N is a fly nut on the pin K which may be
formed with spanners or surfaces to receive such if desired.
O is a stud or boss on the same These jaws or plates are reversible being
pivotted either in holes P. P or QQ by removing pin K. and inserting it in the
corresponding holes of both dies.
In figure 2. the pin K. is put through the holes Q. Q. to compress the pipe which
is first passed between the jaws or dies and then the nut N turned till the pipe is
compressed by the lower ends of the jaws approaching each other. To expand the
pipe the dies are reversed and the nut N turned till the pipe is re-opened as
desired.
When a pipe is required to be kept closed and a pressure is against it, I prefer
to keep my dies on till the repair or renewal desired is effected and Figs 5. 6. 7
and 8 illustrate this-R. S. are the dies formed as before. Thus a pipe compressed
can be kept so, as long as desired the tool being used as in Fig. 7. or a compressed
pipe re-opened as in Fig. 8.
It will be manifest that the dies according to my invention could be formed with
simply concave surfaces and other dies with convex surfaces and both be forced
together in corresponding pairs instead of having both concave and convex surfaces
in one die thus making the said dies reversible for the purpose.
It will also be apparent that instead of a screw or screws for forcing the dies
together other means could be adopted as for instance an eccentric or cam or lever
or fluid pressure or other means or I can adapt such dies or surfaces to a vice or
pliers for the special purpose referred to or the dies could be formed to compress
several pipes (or expand the same) in line or adjacent to each other at one
operation.
Having thus particularly described and ascertained the nature of my said
invention and the manner in which the same is to be performed I declare that
what I claim is―
Firstly. The method of compressing or re-opening soft metal or like compressible
pipes as hereinbefore described by forcing or pressing concave or convex surfaces
or dies against such pipes substantially as described.
Secondly. The dies formed with respectively convex and concave surfaces for the
purpose of operating on pipes as herein before described such dies being combined
with or capable of being operated by screw or other suitable tool substantially as
described.