An improved RONG Angle Iron. பத
Year: 1895

page_text: Date claimed for Patent under Sect. 103 of Act,
being date of first Foreign Application (in 31st Aug., 1894
Switzerland),
-
Date of Application (in United Kingdom), 28th Feb., 1895
Complete Specification Left, 28th Feb., 1895-Accepted, 30th Mar., 1895
COMPLETE SPECIFICATION.
An improved RONG
Angle Iron.
பத
334
I, SAMUEL BAUR-DIEZ, of Hardstrasse, Båle, in the Republic of Switzerland,
Locksmith, 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 a machine for shearing T and angle iron of various
dimensions. It consists of a fixed frame to which is fastened a number or series of
blades between which the T or angle iron to be out is clamped and held in position,
and of a second similar series of blades fixed to the frame in such a manner that
they can rotate thereon and between which the iron to be sheared is also clamped
directly in front of the fixed series of blades in such a way that the place where
the metal is to be divided is situated between the two clamped parts and by
revolving the second group of blades the iron is brokon, twisted or sheared at
this place.
To enable my invention to be fully understood
reference to the accompanying drawing, in which :-
Figure 1 shews a side view of my improved machine:
will describe the same with
Figures 2 and 3 shew respectively a front and back view of the two parts of the
machine divided along the live x of Figure 1:
Figure 4 shews a side view of the machine shewn in Figure 1 but in which the
positions of certain parts have been changed:
Figure 5 is a sectional elevation of a detail:
Figure 6 is a front elevation of the blade holder and blades adapted for shearing
Tiron:
Figure 7 is a vertical section on the ine 7-7 of Figure 6:
Figure 8 is a horizontal section on the line 8-8 of Figure 6:
Figure 9 is a detached view of two of the blades :
Figure 10 shews. the blade-holder with its blades adapted for shearing
angle iron:
Figures 6-10 are drawn to an enlarged scale.
A is the frame of the machine to which is fixed the support B which receives the
blade bolder C. The blade-holder C is tapered from front to back and fixed by
screwing it into a correspondingly shaped opening in the support B. The blade-
holder C is formed of a U-shape and its lower part forms the lower blade for which
purpose it is provided on the front with a plate c of hardened steel which it is easy
to remove and to replace.
The two arms of the blade-holder C are provided at their upper ends with
grooves c into which lateral tongues of a slide D fit so that this piece can slide

page_text: and down between the arms. The slide D is provided at its underside with a
T-shaped grooved into which the T-shaped heads eo of both blades E, E can be
introduced from the side. The blades E, E are also provided on their front sides
with plates e of hardened steel which with the plate e project slightly from the
front surface of the blade-holder C. The upper part of the slide D is provided
with a hole d¹ in which the lower extremity of a screw F, which is screwed into
the support B, is_rotatably attached so that by turning this screw F the slide D
and the blades E, E hanging therefrom will move up and down in the blade-
holder C. The outer edge of each blade E is made inclined and rests on a
correspondingly inclined portion of its arm of the blade-holder so that by
causing the slide D to move downwards by means of the screw F the two blados
are caused to approach. oue another to such an extent that if, for instance, the
blade E is moved one millimetre.downwards each blade is caused to approach the
other half a millimetre in a horizontal direction. In order to provide that
the blades shall move away from one another when they are moving upwards they
are provided with a guide piece e' (Figure 9) which has a slot e running parallel
to the inclined edge of the blade in which slots work two guide pieces e³, fixed to
the blade-holder C. Between the plate and the blades E therefore T-iron of
any desired size can be held by introducing it between these parts and then
clamping it by turning the screw F. To cause the T-iron to be still more firmly
held the surfaces of the plates e and e which come into contact with the same can
be provided with grooves or roughened.
On the bed plate of the frame A is fixed also a bearing G in which a hollow
shaft carrying a wheel H' revolves. In the boss H³ of the wheel H³ a second
blade-holder C is fixed exactly opposite to that fixed in the support B and the
blades of which, adjustable by means of a screw F, also project somewhat, so that
in the position shewn in Figure 1 the plates cand e of both blade-holders touch one
another. The rim of the wheel H¹ is, as shewn weighted at so that this heavy
part has the tendency to revolve in a downward direction and consequently to bring
the blade-holder attached to the wheel to a position corresponding to that of the
first blade-holder. The bearing G is made slightly conical from back to front
(Figure 5) and the shaft H is made conical towards both extremities so that when
the shaft H with the wheel H¹ is pushed into the position shewn in Figure 4 the
axis of the same lies somewhat lower and consequently the wheel with its shaft can
be again pushed into the position shewn in Figure 1 without causing the lower
blade to scrape the under surface of the T-iron which has been clamped in the
support B after having been passed through H. This displacement of the shaft H
is brought about by a double lever I which is pivotted to the bearing G and of
which one arm i is provided with a handle whilst the other arm carries at its end
a roller which fits in a groove g of the shaft H.
The wheel II' is provided in its periphery with several cavities 4° into which a
lover can be introduced for the purpose of turning the wheel. To facilitate the
turning of the wheel H¹ it is provided at one part of its circumference with ratchet
teeth h³ in which a pawl works; this latter is linked to a lever J. which at j' is
pivotted to the frame of the machine; the spring holds the pawl i̟ always in
engagement with the ratchet teeth . The free end of the lever J is provided
with a hole in which a handle can be fixed so that in shearing T or angle iron of
large dimensions the wheel H' can always be moved the distance of one tooth
with slight trouble by pulling down this lever by means of the said handle.
A pawl k prevents the wheel H³ from turning backwards.
To shear T-iron by my improved machine the wheel H¹ is pushed to the position
sbewn in Figure 4 by means of the shaft H to enable the T-iron to be introduced
more easily and the latter is so fixed in the fixed series of blades of the slide D
that the part where it is desired to shear the metal lies immediately in front of the
plates cand e. The shaft H is then moved to the position shewn in Figure 1, the
T-iron clamped in the second series of blades, and the wheel H¹ is then moved in
the direction of the arrow y Figures 1 and 2 by means of a lever introduced into

page_text: the holes hº, or by means of the lever J and the pawl j. In this manner the
T-iron is broken, twisted or sheared in the plane between the two series of
blades.
If the machine is to be used for shearing angle iron then in place of the blade-
holders C two others C¹ (Figure 10) are used. In these two blade-holders the two
lower blades, arranged at right angles to one another, are formed by the blade-
holder C which is provided with hardened steel plates e, whilst a third blade E
also provided with hardened steel plates and formed with a right angle at its
lower end, is introduced by means of its T-shaped head into a corresponding
groove d of a slide D' attached to the screw F in the same manner as the slide D.
This slide D' is provided with lateral tongues which can slide up and down in
corresponding grooves in the arms of the blade-holder. The clamping and
shearing of the angle iron is then carried out in the same manner as described with
reference to the T-iron.
It is evident that the wheel H' could be turned by other arrangements than that
hereinbefore described.
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 machine for shearing T and angle iron having two series of blades of which
the one series adapted for gripping the T or angle iron to be sheared, is fixed to
the machine frame and so constructed that one part of the T or angle iron to be
sheared can be clamped and held in the same, whilst the other part can be clamped
in the other series of blades (which is analogous to the first aud arranged exactly
opposite to it and provided with a wheel and fixed to a hollow rotatable shaft) so
that the place where the T or augle iron is to be sheared is situated between the
two series of blades and by turning the second series of blades the Tor augle iron
can be twisted, broken or sheared substantially as described.
2. In a machine for shearing T and angle iron of the kind described in Claim 1
the arrangement for revolving one of the series of blades, consisting of a wheel
fixed to a shaft which wheel is provided at its periphery with holes in which levers
can be introduced and which further, at one part of its circumference, is provided
with ratchet teeth in which a pawl works the pawl being pivotted to a lever which
is pivotted to the frame of the machine and has a hole adapted for receiving a
turning lever so that the wheel can be revolved with slight trouble by means of
the lever and the pawl, a second pawl preventing the wheel from revolving in the
opposite direction, substantially as set forth.
3. In a machine for shearing T and angle iron of the kind described in
Claim 1:
(a) The blade-holders adapted to be used for shearing T-iron, in the grooves
of which holders a slide attached to a guide screw, can slide up and down by
incans of its tongues the slide being provided with a T-shaped groove in
which the T-shaped heads of both blades are introduced, whilst a third blade
is formed by the blade-holder itself, the blades being provided with inclined
lateral edges which, ou the up and down motion of the same, slide on corre-
spondingly inclined surfaces of the blade-holder so that T-iron of various
dimensions can be clamped between these three blades, the blades being
further caused to move away from one another in a lateral direction during
the upward motion of the same by means of guide pieces.
(b) The blade-holders adapted to be used for shearing angle iron of which each
forms two blades at right angles to one another whilst a third blade is placed
with its T-shaped head in a correspondingly shaped groove of a slide
attached to a guide screw and movable up and down by means of lateral
tongues in the grooves of the blade-holder so that, by suitably turning the
guide screw, angle iron of various dimensions can be clamped between these
blades.

page_text: 4. The improved machine for shearing T and angle iron hereinbefore described
and illustrated in the accompanying drawings.
Dated the 28th day of February 1895.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.