IMPROVEMENTS IN COMBINED PIPE TONGS AND PIPE CUTTERS
Year: 1879

page_text: LETTERS PATENT to Frederik Wolff, of Copenhagen, Denmark, Patent Agent,
for the Invention of "IMPROVEMENTS IN COMBINED PIPE TONGS AND PIPE
CUTTERS." A communication from Jacob Henrichsen, of Copenhagen,
Engineer.
Sealed the 5th December 1879, and dated the 8th October 1879.
COMPLETE SPECIFICATION filed by the said Frederik Wolff at the Office
of the Commissioners of Patents on the 8th October 1879.
44
FREDERIK WOLFF, of Copenhagen, Denmark, Patent Agent. IMPROVEMENTS
IN COMBINED PIPE TONGS AND PIPE CUTTERS." A communication from Jacob
Henrichsen, of Copenhagen, Engineer.
The combined tongs and cutter constructed according to this Invention is
especially intended for use in the laying of wrought iron piping.
The tool consists of a handle, to which is connected a claw jointed to an
adjustable screw or block in or on the handle. The handle is formed with a
roughened or saw teeth projection or nose, which together with the inside of the
claw form the pipe tongs. The handle is also formed with another projection or
front part or face fitted with a circular cutter; when the tool is to be used as a
pipe cutter the claw is brought forward, so that it comes opposite the circular
cutter or bridge part formed in the back of the claw, being screwed tightly up
against the aforesaid roughened projection by means of the aforesaid adjusting
screw or block.
Figure 1 of the accompanying Drawings is an end view; and Figure 2, a side
view of the tool when used as tongs; Figure 3 shows it when applied as a pipe
cutter; and Figure 4 represents detail views of the claw.
A is a piece of pipe operated upon when the tool is used as pipe tongs or spanner;
the pipe A is taken hold of between the claw b and the roughened projection or
nose c at the end of the handle d. The claw b can turn on a bolt e, which unites
it with a sliding block f, which can be moved backwards and forwards in a
corresponding slot in a part h of the handle d; the block f terminates at one end in
a screw, by means of which and by a nut g working against the part of the
handle, the tool can be set to various sizes of pipe. When working, the handle d
is only turned in the direction of the arrow, shown in Figure 2,

page_text: When the tool is used as a pipe cutter the piece of pipe A to be cut is taken hold
of between the claw b and the circular knife or cutter i in the projection part or
face on the handle d. The claw b is jammed fast against the pipe A by means
of the nut g. The claw b is prevented from letting slip the pipe A during the
operation by the bridge k, between the two sides or fork part of the claw b, see
Figure 4, which shows the claw separately; the bridge part k of the claw comes
against the nose c during the cutting operation.
I claim,-
The combined pipe tongs and cutter formed by a claw and a handle with two
projections, of which one, j, is fitted with a circular cutter, and the other, c, is
roughened or provided with saw teeth, so that the tool may be used as a pair of
pipe tongs or as a pipe cutter according as the claw, which can be brought up hard
against the pipe operated upon to hold it, is made to act with one or other of the
said projections, all substantially as described and shown on the accompanying
Drawings.
In witness whereof, I, the said Frederik Wolff, have hereunto set my hand
and seal, this Fourth day of October, in the year of our Lord One thousand
eight hundred and seventynine.
FREDERIK WOLFF. (L.S.)