Improvements in the Construction of Clamps.
Year: 1899

page_text: Date of Application, 20th May, 1899--Accepted, 24th June, 1899
COMPLETE SPECIFICATION.
Improvements in the Construction of Clamps.
We, WILHELM GOEBEL, of No. 297, Kölner Strasse, Düsseldorf, in the German
Empire, Foreman, and GUSTAV GOCKEL, of No. 20, Aders Strasse, Düsseldorf,
in the German Empire, Manufacturer, do hereby declare the nature of this in-
vention and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement:-
The present invention relates to improvements in the construction of clamps,
the purpose of the invention being to attain an accelerated adjustment of the
two jaws. Our improved construction of the clamp further entails the advantage
of being enabled to vary the diameter of the internally screw threaded bore of
the sliding jaw which receives the usual adjusting screw, thus rendering the
clamp useful for a prolonged period of time in comparison with clamps of
ordinary construction.
We will now proceed to describe our invention more fully, reference being had
to the accompanying drawings, in which
.
Fig. 1 shows a side elevation of a clamp having the present improvements
applied thereto.
Fig. 2 is a front view of same.
Fig. 3 illustrates a plan view, the adjusting screw being removed.
The shank which carries in the usual manner the fixed arm a, is provided
with teeth c at its inner edge, the outer edge being smooth. The sliding arm d
fits with its sleeve e over the shank 6 on which it is movable up and down. The
sleeve e permits a hook shaped wedge f to be inserted between the outer edge
of the shank b and the sleeve. Projections g at either side of the bottom end of
the wedge prevent an unintended or accidental removal from the sleeve e.
The sliding arm d is provided with a screw threaded bore h for the reception
of the adjusting screw in the usual manner. The extremity of the arm d
is split from the screw threaded bore h, as shown at k in Fig. 3. The two por-
tions of the arm d are adjustably connected together by means of a screw m.
The adjusting screw i is provided with prismatic screw threads.
To adjust the two arms of the clamp for the required width, the wedge f is
loosened by knocking against the lower side of its hook shaped head, whereupon
the sliding arm can be moved in view of its sleeve
shank and fixed
e along the
on any one of the teeth C. The incline of the
teeth c in connection with the inclined surface in the sleeve e and the wedge f
permits a rigid fixing of the sliding arm d in the required position, the adjust-
ing screw i serving in the usual manner for exerting the necessary pressure for
holding tight any object clamped between the two arms.
d
When the internally screw threaded bore of the sliding arm d gets worn out
through prolonged use of the clamp it is simply necessary to draw tighter the
adjusting screw m which will reduce the diameter of the bore in view of the
arrangements above described,

page_text: Having now particularly described and ascertained the nature of our said in-
vention and in what manner the same is to be performed, we, declare that what
we claim is:
-
1.) In a clamp the combination, with the shank and fixed arm, of a sliding
arm movable along the shank and adapted to be fixed thereon by means of teeth
on the inner edge of the shank and a wedge inserted between the sliding arm
and the outer edge of said shank, the extremity of the sliding arm being bifur-
cated from the bore which receives the adjusting screw, and an adjusting screw
for connecting the two halves of the sliding arm, substantially as and for the
purposes set forth.
2.) A clamp having the present improvements applied thereto, the whole con-
structed arranged and adapted to operate substantially as described with refer-
ence to the accompanying drawings.
B. REICHHOLD,
International Patent Office,
24, Luisen Strasse, Berlin, N.W., Germany,
Agent for the Applicants.
B. REICHHOLD,
International Patent Office,
24, Luisen Strasse, Berlin, N.W., Germany,
Agent for the Applicants.