IMPROVEMENTS IN TOBACCO PIPE JOINTS."
Year: 1878

page_text: LETTERS PATENT to William Horton Sharman, of Red Lion Square, in the
County of Middlesex, for the Invention of "IMPROVEMENTS IN TOBACCO PIPE
JOINTS."
PROVISIONAL SPECIFICATION left by the said William Horton Sharman
at the Office of the Commissioners of Patents on the 7th January 1878.
WILLIAM HORTON SHARMAN, of Red Lion Square, in the County of Middlesex.
"IMPROVEMENTS IN TOBACCO PIPE JOINTS."
My Invention relates to the joint by which the amber or other mouth-piece of a
tobacco pipe is detachably connected to the stem so as to be removable therefrom
for the purpose of cleaning the pipe, and the object of my Invention is to enable
the mouth-piece to be more readily detached, and at same time to provide a stronger
and more durable joint than the ordinary joint at present in use.
The improved joints of this Invention comprise the usual metal mount in two
parts permanently connected, the one to the mouth-piece and the other to the stem
of the pipe, and according to my Invention these are united in the following
manner-According to one arrangement a tubular extension on the one part enters
a corresponding socket on the other part, and the said tubular extension has about
one convolution of a very coarse and strong screw thread formed upon it for a
portion only of its length, which screws into a corresponding female screw in the
other part, so that one turn of the mouth-piece is sufficient to detach it from the
pipe, and the screw is not liable to be damaged or strained, as is the case with the
fine screws at present used.
A modification consists in having about a quarter turn each of the two threads of
a double-threaded screw, forming two lugs at opposite sides of the tubular extension

page_text: taking into corresponding sockets in the other part of the mount.
In each case
the screws are near the base of the tubular extension, which enters a corresponding
socket beyond the female screw to strengthen and steady the joint.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said William Horton Sharman in the Great Seal Patent Office on the
5th July 1878.
WILLIAM HORTON SHARMAN, of Red Lion Square, in the County of Middlesex.
"IMPROVEMENTS IN TOBACCO PIPE JOINTS."
My Invention relates to the joint by which the amber or other mouth-piece of a
tobacco pipe is detachably connected to the stem so as to be removable therefrom
for the purpose of cleaning the pipe, and the object of my Invention is to enable
the mouth-piece to be more readily detached, and at same time to provide a stronger
and more durable joint than the ordinary joint at present in use.
The improved joints comprise the usual metal mount in two parts permanently
connected, the one to the mouth-piece and the other to the stem of the pipe, and
according to my Invention these are united in the following manner :-According
to one arrangement a tubular extension on the one part enters a corresponding
socket on the other part, and the said tubular extension has about one convolution
of a very coarse and strong screw thread formed upon it for a portion only of its
length, which screws into a corresponding female screw in the other part, so that
about one turn of the mouth-piece is sufficient to attach it to or detach it from the
pipe stem, and the screw is not liable to be damaged or strained, as is the case with
the fine screws at present used.
A modification consists in having about a quarter turn each of the two threads of
a double-threaded screw forming two lugs at opposite sides of the tubular extension,
taking into corresponding sockets in the other part of the mount. In each case the
screws are near the base of the tubular extension, which enters a corresponding.
socket beyond the female screw to strengthen and steady the joint.

page_text: The screw is received in a corresponding screwed socket e, also shown separately
on an enlarged scale in Figure 2, together with the screw-threaded tube c. The
screw socket e consists of a short length of tube, the thread being preferably formed
by soldering or otherwise securing a spiral coil e' inside the socket, with which the
thread on tube c engages. The socket is extended at e³ to form a bearing for tube
c, and ensure a perfectly firm joint. The tube b and socket e are both received in
a recess made in the pipe stem, as shown in Figure 1, in which the nicotine is
received and prevented from being drawn into the mouth.
Figure 3 shows in side and end views, and Figure 4 in section and end
view a modified form of screw joint. In this [arrangement about one quarter
turn each of the two threads of a double-threaded screw are employed, forming two
lugs ff, fixed on opposite sides of the tube c, which take into corresponding sockets
g, g, on the pipe stem mount, as shown in dotted lines at f, f, Figure 4.
The parts
may be readily attached by inserting the lugs f, f, in the recesses f¹, f', and then
turning the mouth-piece one fourth of a revolution so as to engage the lugs in the
sockets g, g. A similar movement in the reverse direction is sufficient to disengage
the lugs and allow of the separation of the two portions of the pipe.
Having described the nature of my Invention, and the manner of performing the
same, I declare that what I claim as the Invention to be protected by the herein-
before in part recited Letters Patent is, the improved joints for tobacco pipes con-
structed as shown and described for the purpose specified.
In witness whereof, I, the said William Horton Sharman, have hereunto set
my hand and seal, this Fifth day of July, in the year of our Lord One
thousand eight hundred and seventy-eight.
W. H. SHARMAN. (L.S.)