Year: 1899

page_text: Date of Application, 18th July, 1899
Comptato Cronifiantion Inst 6th Man 4000
001
1
1000
I, HERBERT JOHN HADDAN, of the Firm of Herbert Haddan & Co., of 18, Buck-
ingham Street, Strand, London, Patent Agent, do hereby declare the nature oi
this invention a communication to me from abroad by the Werkzeugmaschinen-
fabrik A. Schärfl's. Nachfolger of Steinstrasse No. 50, Munich, in the Empire of
Germany, to be as follows:-
This invention relates to an improved vice suitable for grasping rods or the like
which can be reversed and has movable flat clamping jaws the lower of which
is so mounted that it can be removed.
The special mounting of the lower clamping jaw or jaws by which the same
can be removed as desired gives means whereby even tube or rod pieces of larger
diameter, or those which are provided with double flanges can be secured in the
vice.
Further this improved vice, standing normally vertical and fastened in place
by means of two angle plates, can be readily adjusted so as to take a horizontal
position.
Further by the special method of fastening the improved vice in position with
regard to known similar devices the improved vice can always be so fastened on
the bench so that the mouth formed by the clamping jaws, always projects over
the edge of the bench so that the worked piece (tube or the like) fastened therein,
can be arranged at any desired angle of inclination.
The body or stand is suitably formed for the reception of the movable flat
clamping jaw or jaws, and carries in its upper part a spindle the female thread
for which is in a cylindrical member of the upper clamping jaw or jaws, whilst
in the under part of the body a bearing for the lower clamping jaws is arranged.
The bearing being formed by a cylindrical boring, is on one side provided with
a passage of less breadth than the diameter of the boring itself, so that the
bearing pivot of the lower jaw being suitably shaped, can pass freely through the
passage when held in suitable position. The bearing pivot is provided with a
groove in which the threaded end of a thumb screw can engage.
As the overreaching mouth pieces of the one clamping jaw or jaws passes into
an oblique cut out portion of the other clamping jaw or jaws the same are com-
pelled to always move mutually
The one half of the overreaching mouth pieces of both jaws is suitably lower so
that the inserting or removal of the tube or the like is easier.
A further advantage is that by means of these clamping jaws even very short
pieces of tube and the like can be secured as the one of the jaws (for instance the
upper) which with its projecting mouth piece passes between the two projecting
mouth pieces of the other, is provided with shoulders. These shoulders project
on both sides so far that their united breadth is equal to that of the other or
lower clamping jaw. They are formed in the shape of a wedge according to the
mouth opening of the lower jaw.

page_text: The changing of the vice from the vertical to the horizontal position is made
possible by means of two angle plates having suitable holes the body having
similar holes, for the passage of screw bolts.
Improvements in Vices.
I, HERBERT JOHN HADDAN, of the Firm of Herbert Haddan & Co., of 18, Buck-
ingham Street, Strand, W.C., London, Consulting Engineer, do hereby declare
the nature of this invention a communication to me from abroad by the Werk-
zeugmaschinen fabrik A. Schärfl's Nachfolger, of Steinstrasse, No. 50, Munich, in
the Empire of Germany, and in what manner the same is to be performed, to be
particularly described and ascertained in and by the following statement:-
This invention relates to an improved vice, suitable for gripping or holding
tubes, rods or the like, which is capable of being reversed and provided with
movable flat clamping jaws, the lower one of which is so mounted that it can be
removed.
The improved mounting of the lower clamping jaw or jaws by means of which
the same can be removed as desired enables even tubes or rods of larger diameter
or those which are provided with double flanges to be secured in the vice.
Further, this improved vice, normally standing in a vertical position and
fastened in place by means of two angle plates, can be readily adjusted so as to
take a horizontal position.
By the improved method of fastening the vice in position with regard to known
similar devices, the said vice can always be so fastened on the bench that the
clamping jaws always project over the edge of the bench thus enabling the piece
(tube or the like) to be operated on fastened therein, to be arranged at any desired
angle of inclination.
In the accompanying drawings Fig. 1 shows the improved vice in side elevation.
Fig. 2 is a front elevation thereof. Fig. 3 is a side view in another position.
Figs. 4 and 5 are detail views.
The body or standard a is suitably shaped for the reception of the clamping
jaws and and carries in its upper part a screw threaded spindle 6 the female
thread for which is in the cylindrical part of the upper movable clamping
jaw k, whilst in the lower part of said standard a bearing or seating (Fig. 4)
for the lower stationary clamping jaw is arranged.
The said bearing or seating is formed by a cylindrical recess 7 and is provided
on one side with a passage 12 of smaller breadth than the diameter of the recess I
itself, so that the bearing pivot of the lower jaw being flattened at the sides
or otherwise suitably shaped, as shown in Fig. 5, can pass freely through the
passage when held in suitable position. The said bearing pivot is provided
with an annular groove n in which the threaded end of a thumb screw f can
engage.
As the overreaching part of the one clamping jaw k passes into an oblique
cut out portion of the other clamping jaw & both jaws are compelled to always
nove mutually when turned about their common axis.
One half, preferably the front of the overreaching parts of both jaws kis
made suitably smaller than the other as shown at (Fig. 1), so that the insertion
or removal of the tube or the like is facilitated and also to permit an easy removal
of the lower jaw.

page_text: A further advantage is that by means of clamping jaws described, even very
short pieces of tube or the like can be secured in the vice without bending same.
as one of the jaws (for instance the upper, k) which with its projecting part
passes between the two projecting parts of the other jaw is provided with
shoulders. These shoulders project on both sides so far that their united
breadth is equal to that of the other or lower clamping jaw. They are formed
preferably in the shape of a wedge or according to the shape of the opening in
the lower jaw.
The mounting of the vice so that is can be changed from the vertical to the
horizontal position is accomplished by means of two angle plates having
suitable holes c, the standard a having similar holes, for the passage of screw
bolts s, as shown in Figs. 1 and 3.
Having now particularly described and ascertained the nature of this inven
tion and in what manner the same is to be performed, I declare that what I
claim is:-
1. A vice for holding tubes, rods or the like, having jaws revolvably mounted
and engaging into each other in which one jaw is seated movably by means
of a suitably shaped bearing pin 4, in a seat with cylindrical recess and open on
one side in order to permit the easy removal of the jaw ¹, whilst the other jaw k
is provided with an adjusting spindle b.
2. A. vice for holding tubes, rods, or the like as described in Claim 1, in which
the projecting parts of the jaws are smaller on one side than on the other in order
to allow of the easy insertion and removal of the piece to be operated upon and
also to permit an easy removal of the lower jaw.
3. A vice for holding tubes, rods or the like as described in Claim 1, in which
the one jaw engaging into the other slotted jaw has shoulders or projections on
both sides so that its width is equal to that of the lower jaw.
Dated this 6th day of March 1000