Improvements in Vices.
Year: 1892

page_text: Date of Application, 5th Sept., 1892-Accepted. 17th Dec., 1892
COMPLETE SPECIFICATION.
Improvements in Vices.
We, FRIEDRICH CARL BREBECK, Winkelerstrasse and JAKOB KEMPNICH
Gerberstrasse both of Barmen, Rhenish Prussia, Germany Mechanical Engineers
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:—
This invention relates to improvements in parallel vices.
Parallel vices as
hitherto in use, without exception, are so constructed that they have their
support on the work bench only and they are always made of cast iron; this is
the reason why these vices are not much in favour with fitters and engineers,
notwithstanding they possess very good qualities in other respects. The ordinary
vices of wrought iron and with a stilt footing have a more solid stand and make
less noise and the strokes of a hammer upon them are more powerful. Now we
have invented a parallel vice made altogether of wrought iron and combining all
the good qualities of an ordinary vice and of a parallel vice for slow and fast
spanning and fastening, which besides being bolted to the beuch receives its
principal hold upon a stilt.on the ground.
On the accompanying drawing:
Figure 1 is a side view of the new vice partly in section;
Figure 2 is a front view of the same;
Figure 3 is a view seen from the top;
Figure 4 is a section along line I-1;
Figure 5 is a side view of a modified design;
Figure 6 is a front view of this design;
Figure 7 is a plan of the same;
Figure 8 is a section along line II-II;
Figure 9 is a longitudinal section of the spindle and the nut;
Figure 10 shows a simplified design on a small scale.
The vice is made altogether of wrought iron; it consists of the fast check A
which is held to the bench by the bolts 13; its lower part C forms the stilt as
in ordinary vices with which it rests upon the ground.
Just above the bench
the body of the cheek is bored through, at the sides there are bolted to the
part C the plates D serving as supports and as guides for the movable check E
by means of the prismatic piece F, which in its back part is shaped into a
cylinder G fitting into the boring of the body mentioned above. Above this
part F, G, parallel to it, the nut H is fixed into the part A. and secured to it by a
flange and bolts. In the interior of this cylindrical nut the hollow, short bolt H'
can be screwed forwards and backwards. Centrally to it we fix to the movable
cheek E the vice spindle I in such a manner, that it can be turned therein, but
not pulled out of it. The spindle is provided on diametriacally opposite sides
with toothlike projections or combs taking each about a quarter of the circum-
ference and the bolt H is of corresponding inner section, that is to say, one
quarter about of its inner circumference is provided with recesses into which
the combs of the spindle enter, when both are brought in proper position to each
other, but when the spindle makes a quarter turn out of the said position, its
combs are free from the recesses in the bolt H¹ and then the spindle can be
pulled out of the bolt. The cross sections of Fig. 9, right and left show these
two positions. From the above description and by means of the drawing it will
now be understood, that this vice can act like an ordinary screw vice for slow
closing by screwing, and that it can also be opened or closed quickly, by pulling
out the movable cheek together with the spindle from the bolt H' for when the

page_text: combs of the spindle are put in gear with the corresponding projections of the
bolt H, and the spindle is then turned it causes the bolt to be turned also and
this is then screwed forwards or backwards in the mut I according to the direction
of the turning of the spindle by the handle.
The modified design shown by Figs. 5-8 differs from the preceding one only
by the manner of guiding the movable cheek. The two guide plates L are made
deeper than the plates D, and in place of the prismatic piece F and the cylinder G
we have introduced a narrow but deep piece M, forming the lower part of the
movable cheek and this is guided between the plates L; to one of these plates a
bar N is fixed and a corresponding recess is cut into the piece M.
The movable cheek is moved forwards and backwards and set fast by pulling it
out or by screwing it in the same manner as before by means of the nut H2, the
bolt H3 and the spindle 11,
Figure 10 shows a simplified construction in a small scale. Here in the fast
cheek is fitted the nut Q with a hollow bolt in it as before. The movable
cheek R is provided with a prismatic piece S, similar to the piece F of the first
design; this piece is guided between and upon the plates T. The piece S is bored
centrally to the nut Q to receive the spindle U in its boring, which is of similar
construction as the spindles in the other designs, so that the spindle can be turned
in R and S, without being able to be pulled axially, but that both movements may
be made in the nut Q according to their relative position to each other, as was
explained in the former cases.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :
1) A wrought iron parallel vice with a stilt support and arranged for closing
and opening slowly by screwing the spindle, or quickly by pulling out the movable
check and the spindle from the fast check, the latter having a stilt foot C, and in
which the movable cheek E is guided by means of a prismatic piece F or M
respectively and a bolt G or a piece N respectively, upon and between plates D
or L, and the spindle (I or I) of which is provided with combs or teeth projections
on two diametrically opposite sides and fitting into corresponding recesses in a
hollow bolt (I or II) and being capable of making a quarter turn in the bolt,
allowing the pulling out of the spindle with the check in one position and causing
the turning of the bolt in the nut H or H in the other position, thus opening or
closing the movable cheek quickly by the first motion or screwing it slowly by the
second motion.
Dated this 30th day of August 1899
KARL J. MAYER,
Agent for Fr. Carl Brebeck and Jak. Kempnich.