An Improvement in Vices.
Year: 1899

page_text: An Improvement in Vices.
:-
I, ALBERT SCHMID, Engineer, of Zürich-Siel, Switzerland, 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 invention relates to an improvement in vices to enable round tubes to be
held securely between the jaws, which tubes cannot be easily fixed in an ordinary
vice. The improvement consists of grooving or recessing the inner portions of
the jaws of a parallel vice either on the upper or the lower end, in such a way
that when screwed together, a round tube, offering only little resistance, is
held securely at four or more points in its circumference that the tube cannot
rotate, so that the manipulation on such tube can be carried on without fear
of the tube slipping.
viz.
The accompanying drawing gives a clear illustration of the improvement,
Figure 1 shows part of the cross section of a vice.
Figure 2 shows an upper view.
Figure 3 shows a lateral view.
According to the construction shown on the annexed drawing, the vice con-
sists of the fixed jaw a having a spindle or arm e for pivotal connection with a
projection c¹ on a support b, the arm c of the jaw a being held in the said sup-
port by means of a screw d. The jaw a is provided with slides ee which have
their ends connected by a cross piece e¹ for carrying a screw spindle g, this being
prevented moving longitudinally by its collars g, g² the slides e, e, also serve
as guides for the loose jaw f of the vice. The moving of the jaw f takes place
in the usual way by means of the spindle g lying between the guides e, e, which
spindle is moved by a lever h which when turned in one direction will move
the jawf forward, and when turned in the opposite direction will move the jaw f
backward.
The inner faces of the jaws a and f are provided with incisions or recesses i, 2,
(preferably angular) which are intended to hold the tube in its position in the
vice and to prevent rotation during the work, this being effected by the tube
being held by the angled sides of the recesses i, i, thus gripping the tube at
four or more places instead of at two only as in the ordinary flat faced jawed
vices hitherto constructed.
It will be readily understood that any size of tube within the limits of the
action of the vice can be operated upon.
According to the drawing the vice is shown as having jaws on opposite sides
of the screw, one side having the recesses i, i, for holding tubes, and the other ¿¹
being plain for securing articles other than tubes. The jaws are reversable
and are fixed in the desired position by the set screw d. The screw spindle g
may be secured to the fixed jaw a, for ensuring only a rotative movement, in the
well known manner.

page_text: Having now particularly described and ascertained the nature of the said in-
vention and in what manner the same is to be performed, I declare that what I
claim is;-
1. The improvement in vices herein before set forth.
2. In a vice with parallel jaws, providing the jaws with angular incissions
or grooves in their working faces to enable tubes to be held firmly therein,
substantially as described and as shown on the annexed drawing.
R. CORE GARDNER,
Patent Agent, 166, Fleet Street, London,
Agent for the said Albert Schmid.