IMPROVEMENTS IN THE MANU- FACTURE OF CLIPS FOR THE SPRINGS OF CARRIAGES AND IN APPARATUS TO BE USED THEREFor
Year: 1877

page_text: LETTERS PATENT to Raffaello Calo, of Lisle Street, Leicester Square, in the
County of Middlesex, for the Invention of "IMPROVEMENTS IN THE MANU-
FACTURE OF CLIPS FOR THE SPRINGS OF CARRIAGES AND IN APPARATUS TO BE
USED THEREFor." A communication from abroad by Laurent Colas, of Bogny-
sur-Meuse, Ardennes, France.
Sealed the 20th April 1877, and dated the 11th January 1877.
PROVISIONAL SPECIFICATION left by the said Raffaello Calo at the Office of
the Commissioners of Patents on the 11th January 1877.
RAFFAELLO CALO, of Lisle Street, Leicester Square, in the County of Middlesex.
"IMPROVEMENTS IN THE MANUFACTURE OF CLIPS FOR THE SPRINGS OF CARRIAGES,
AND IN APPARATUS TO BE USED THEREFOR." A communication from abroad by
Laurent Colas, of Bogny-sur-Meuse, Ardennes, France.
This Invention has for its object improvements in apparatus for the manufacture
of clips for springs of carriages, in order to strengthen the angles or bends of such
clips, so as to produce not only ordinary clips, but also clips having sharp angles or
bends without the use of a special instrument or die. For this purpose in order to
obtain this result a projecting piece is fixed to each moveable wing or end of the die
facing the groove in the die; this piece or projection when the bends press on the
corresponding ends of the clip forces the iron into the angle or bend.
The amount of the pressure may be modified in strengthening the angle by
removing or drawing the projecting piece of the die nearer. The position of the
projecting piece is regulated by sliding on a rod fixed to the die and adjusted by
means of a screw nut to the rod in order to stop the moveable projecting piece when
required. Other means may be employed to obtain the same result.
Each moveable projecting piece may be provided with a spring, and when the
ends or projections of the die are spread will draw together each piece towards the
middle of the die, and thereby leave between the two pieces the same length to the
piece of iron to be bent. The piece of iron is then placed in the open space in order
that the two ends of the clip may be placed correctly, and have exactly the same
When the moveable pieces of the die are raised the ends
of the iron to be bent force out the projecting pieces until they come in contact with
length after being bent.
I Price Ad

page_text: the fixed screw or any other obstacle to determine their exact maximum for the clip
to be inanufactured.
This improved apparatus consists in the addition to each moveable piece or wing
of the die of a piece forming a projection on the groove of the die, and arranged in
such manner during the bending of the clip that it presses on the end of the
corresponding projection in order to force the iron into the angle, and thereby
strengthen the same as much as may be required.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Raffaello Calo in the Great Seal Patent Office on the 8th May 1877.
RAFFAELLO CALO, of Lisle Street, Leicester Square, in the County of Middlesex.
"IMPROVEMENTS IN THE MANUFACTURE OF CLIPS FOR THE SPRINGS OF CARRIAGES,
AND IN APPARATUS TO BE USED THEREFOR." A communication from abroad by
Laurent Colas, of Bogny-sur-Meuse, Ardennes, France.
This Invention has for its object improvements in apparatus for the manufacture
of clips for springs of carriages in order to strengthen the angles or bends of
such clips so as to produce not only ordinary clips but also clips having sharp angles
or bends without the use of a special instrument or die. For this purpose in order
to obtain this result a projecting piece is fixed to each moveable wing or end of the
die facing the groove in the die; this piece or projection when the bends press on
the corresponding ends of the clip forces the iron into the angle or bend. The
amount of the pressure may be modified in strengthening the angle by removing or
drawing the projecting piece of the die nearer. The position of the projecting piece
is regulated by sliding on a rod fixed to the die and adjusted by means of a screw
nut to the rod in order to stop the moveable projecting piece when required; other
means may be employed to obtain the same result.
Each moveable projecting piece may be provided with a spring, and when the
ends or projections of the die are spread will draw together each piece towards the
middle of the die, and thereby leave between the two pieces the same length to the
piece of iron to be bent. The piece of iron is then placed in the open space in order
that the two ends of the clip may be placed correctly and have exactly the same
length after being bent. When the moveable pieces of the die are raised, the ends
of the iron to be bent force out the projecting pieces until they come in contact with
the fixed screw or any other obstacle to determine their exact maximum for the clip
to be manufactured.
This improved apparatus consists in the addition to each moveable piece or wing
of the die of a piece forming a projection on the groove of the die, and arranged in
such manner during the bending of the clip that it presses on the end of the corres-
ponding projection in order to force the iron into the angle, and thereby strengthen
the same as much as may be required.
The ordinary form of clips for springs of carriages is of U shape, the ends being
of the same length, the angles or bends straight, and the ends formed with a screw
thread thereon.
In the manufacture of clips a bar of iron is used of the length required for the
forination of the clip; the two ends are made round and of the length required for
having a screw thread formed thereon, the two ends being straightened perpen-
dicularly to the base to the required length.
The most difficult and costly part of this manufacture is in bending the bar of.
iron or metal into the form in order that the interior of the angles or bends may
be level and the exterior full and square. They are generally manufactured by
hand labor by means of a complete set of tools, the frequent reheating being an
objection which it is important to avoid. Now the object of these improvements is
by incans of suitable mechanism to bend the blanks or bars of iron by an economical

page_text: and effective process. In order to obtain this result a special die is fixed hori-
zontally, formed in three parts, one in the centre which always remains horizontal, and
the two other parts jointed or hinged thereto, the two jointed parts being raised to a
vertical position by any suitable means. The die is formed with a groove of cor-
responding size to the iron employed for being manufactured into a clip. The iron
is prepared in the ordinary manner and heated at the points which are to form the
angles or bends of the clip and is then placed in the die underneath the press or
punch. When lowered the iron is forced into the central part of the die which
remains horizontal. The two jointed moveable pieces of the die when subjected to
the action of the press raise therewith the ends of the iron which pass equally each
side of the press or punch and press them against the lateral parts of those placed
vertically. The press or punch by raising the die by the action of the balance
weight the lateral moveable parts fall and disengage the clip. The advantage of
bending in this way is to prevent weakening the angles or bends of the clip. By
this process or operation the jointed parts of the die by pressing on the ends of the
iron to raise thein tend to force the iron into the angles or bends and thereby
strengthen them. By these means the iron being well pressed into the groove of
the die the clip comes out in the required conditions for ordinary clips.
The annexed Drawing shows two views of apparatus arranged to act in
accordance with this Invention. Figure 1 shows the position of the apparatus
when commencing the bending, and Figure 2 its position after the bending of the
iron.
The die shewn is arranged to produce one kind of clip only, but it can be easily
modified by replacing the grooved parts of the die according to the special size of
the iron to be employed by other grooves fixed and firinly screwed in the die. The
moving of the hinged point and of the press or punch máy be modified and
regulated according to the dimensions of the clips required.
Any kind of press may be employed, even a hammer to determine the movement
of the punch or the die.
Having thus described the nature of the Invention and the manner of performing
and carrying the same into practice, what is claimed under the above in part recited
Letters Patent is, the improved arrangement of apparatus for manufacturing clips
for carriage springs by means of a die operating mechanically and correctly in one
operation in the bending of iron employed for manufacturing of clips for carriages,
substantially as herein-before described and represented in the Drawings hereunto
annexed.
In witness whereof, I, the said Raffaello Calo, have hereunto set my hand
and seal, this Seventh day of March, in the year of our Lord One thousand
nicht hundred and seventy-seven
RAFF. CALO. (L.S.)