AN IMPROVED PIPE VICE
Year: 1878

page_text: PROVISIONAL SPECIFICATION left by the said Philipp Emanuel at the
Office of the Commissioners of Patents on the 1st October 1878.
PHILIPP EMANUEL, of Hamburg, in the Empire of Germany. "AN IMPROVED
PIPE VICE."
This improved device consists of a lower fixed jaw composed of a pair of cheeks
and a movable upper jaw pivoted between the cheeks of the lower jaw, each jaw
being provided with the usual serrated V shaped notches for gripping the pipe. The
jaws are hinged together at one end by a hook-shaped part on the upper jaw
engaging with a joint pin fixed in holes in the lower jaw so as to enable the two
jaws to be readily detached or unhinged to allow a long pipe to be inserted or
removed without slipping it endwise through the vice.
By shifting the joint pin from one hole to another the vice is adapted to hold
pipes of different diameters. The jaws are connected at their other ends by a
tightening screw working through a nut in the top jaw, and connected to the lower
jaw by a ball-and-socket joint. The base of the lower joint is adapted to be
screwed to a truck, bench, or other support, and may have a tenon on its under side
by which it can be held in an ordinary bench vice.

page_text: Figure 1 is a top plan of the improved pipe vice; Figure 2 is a side elevation;
and Figure 3 is a longitudinal section of the same on line 1-1, Figure 1.
A, A, are the pair of parallel cheeks constituting the lower jaw, they rise from a
base plate B provided with holes b for bolting it to a portable truck such as is used
for carrying tools and pipes, or to a bench. C is a tenon on the under side of the
base plate B intended to be held in a bench vice when the pipe vice is required for
temporary use, and which would be received in a mortise in the bench or other
support when the base plate is bolted thereto. The cheeks A, base plate B, and
tenon Care of cast iron, and in one casting. D is the upper or movable jaw of
malleable cast iron, wrought iron, or cast steel, and of the shape shown in Figures 2
and 3. It is received and works between the cheeks A, A, of the lower jaw, and is
formed with a hook-shaped extremity d which takes under a cross pin E passed
through holes e in standards at the ends of the checks A of the lower jaw, and
serving as the joint pin for the jaw D to work on. There is a series of these holes e
at different heights, and by shifting the joint pin E from the one to the other the
vice is adapted to pipes of different sizes. The advantage of the hook shape of
the hinged end d of the jaw D over a complete hinge knuckle on the end of the
jaw is that the jaws can be more readily hinged together, as when inserting the
pin E it is only necessary that the hooked end d should be lower than the hole e
into which the pin E is to be inserted, whereas if there were a complete hinge
knuckle on the jaw D it would be necessary that the hole through the knuckle
should be made to coincide exactly with the hole e in which the joint pin is placed
before said pin could be passed through it, and time would be lost in doing this.
F, F, are the usual V shaped notches in the two jaws for gripping the pipe; the
notch of the upper jaw may be serrated, and that of the lower one plain, as shown.
G is the screw for tightening up the jaws; it works through a female screw in the
other extremity of the jaw D, and is connected to the base plate B, so as to be free
to rotate, by passing through an oblong slot H therein, and terminating at its lower
end in a ball or head g large enough not to pass through the slot, and received in
an oblong countersunk socket or cavity on the under side of said base plate. The

page_text: purpose of the oblong form of the slot is to allow of the screw inclining itself to
suit the varying positions of the jaw D when tightened up or when the height of
the joint pin E is altered, as indicated in dotted lines in Figure 3. The screw is
turned by a spanner I, and has by preference a left-handed thread in order that it
shall be turned to the right in tightening up the jaws, but a right-handed screw
would answer as well.
Having described the nature of my Invention, and the manner of performing the
same, I declare that what I claim as my Invention to be protected by the herein-
before in part recited Letters Patent is,-
1st. The combination and arrangement of parts constituting the improved pipe
vice, substantially as herein shown and described.
2nd. A pipe vice constructed of a fixed jaw formed by a pair of parallel cheeks
united to a base plate, and a movable jaw hinged between the said cheeks at one
end and connected to the fixed jaw at the other end by a tightening screw,
substantially as shown and described.
3rd. In a pipe vice constructed as last specified, hinging the movable jaw by a
hook-shaped lug on the end thereof taking under a joint pin, substantially as and
for the purpose specified.
4th. In a pipe vice constructed of two jaws hinged together and tightened up by
a screw as above specified, connecting said scrow with the fixed jaw by a ball-and-
socket connection, substantially as and for the purpose shown and described.
In witness whereof, I, the said Philipp Emanuel, have hereunto set my hand
and seal, this Twenty-ninth day of March, in the year of our Lord One
thousand eight hundred and seventy-nine.