Year: 1885

page_text: I, CHARLES ALBERT KNIGHT of 107 Hope Street in the City of Glasgow,
Engineer, 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:-
The object of my invention is to provide simple and efficient means for jointing
and securing together lengths of piping used for conveying water or for like
purposes in such manner that greater strength is ensured than is attainable by the
use of the ordinary faucet and spigot joint.
In lieu of casting on the pipe end the usual faucet into which the spigot of the
adjoining pipe length fits I employ a short tubular thimble which may either form
a double faucet for spigot ends formed on the pipe lengths to be connected, or be
shrunk or forced on one pipe length to form a faucet for the adjoining pipe length.
Such tubular thimble may be made of cast steel or of other material possessing the
requisito strength, but I prefer to make it weldless by rolling it to the desired form
froin a solid piece of metal.
In the accompanying drawings which illustrate typical modifications of my
invention; figure 1, is a longitudinal section of parts of two lengths of piping
jointed and secured together by means of a tubular thimble or double faucet ;
figures 2, 3 4 and 5 are longitudinal sections of modified arrangements; figure 6
shows in section an elbow pipe jointed to and connecting two lengths of piping;
and figure 7, shows the means I employ for connecting pipes meeting at right
angles to each other The lengths of piping A, B, in figure 1, are formed with
tapered spigot ends a, b, which may be truly turned or ground to fit tightly into
seats which are bored out or ground with a corresponding taper in the tubular
thimble or faucet piece C. The internal diameter of the thimble is enlarged at
ench end where the faucet extends beyond the pipe spigot and into the annular
channel D, thus formed at each end of the thimble lead or other jointing material
may be run if desired after the pipe spigots have been driven securely home in
their seats within the thimble.
In the modification shown in figure 2, the thimble or faucet piece C, is shrunk
or forced on to the end of one pipe A, whilst the adjoining pipe B is formed with
a truly turned spigot end b, fitting within a tapered seat in the faucet. In this
arrangement each of the series of pipes to be connected has a faucet piece shrunk or
forced on to one end while the other end is formed with a tapered spigot.

page_text: The connecting thimbles C shown in figures 3 and 4 are made of cast iron in lieu
of steel and are strengthened by means of a band or bands C of malleable metal
which is or are shrunk or forced on. Suitably bored or ground scats c, are formed
within the thimble for the reception of the spigot ends of the pipe lengths to be
joined. Figure 5 represents a wrought iron or steel thimble having its internal
surface truly bored or ground to fit suitably turned collars or shoulders formed on
the ends of the pipe lengths. The thimble is shrunk upon one pipe end while the
other pipe and is fitted in and the joint made tight with lead or other jointing
material.
The thimble may be cylindrical instead of being enlarged at one end as shown
and both pipe ends may be fitted in it and caulked instead of one end being
shrunk or forced on.
In the bend or elbow pipe E shown in figure 6, two of the arrangements of
jointing thimbles or faucets are illustrated. On one end of the elbow pipe a faucet
piece C is shrunk or forced on, and the other end is formed with a tapering spigot.
The faucet may however be shrunk on to the end of the pipe length and the elbow
pipe formed with spigot ends. The thimble or faucet piece may also be made of
Tor cruciform shape to connect pipes which meet at right angles or other angles
in the manner shown in figure 7.
The employment of a thimble or faucet piece separate from the pipe in the
manner described has the advantage that greater strength and tighter joints are
obtained while in case of fracture the pipe is not rendered useless as is the case
when an ordinary pipe faucet is broken.
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
1. The improved means herein described and illustrated for jointing and securing
together lengths of piping.
2. As an improved article of manufacture a tubular thimble or faucet piece
having tapering seats or sockets bored or otherwise formed in its ends and adapted
to fit tightly over spigot ends formed on lengths of piping to be jointed, substan-
tially as described.
3. As an improved article of manufacture a pipe length having shrunk or
forced upon its end or ends a thimble or faucet piece adapted to receive the spigot
ends of lengths of piping to be jointed to it, substantially as described.
Dated this Tenth day of November 1885.