Improvements in or relating to Apparatus for use in Bending and Welding Bars, Girders, or the like.
Year: 1898

page_text: Date of Application, 5th Aug., 1898
Complete Specification Left, 24th Apr., 1899-Accepted, 17th June, 1899
Improvements in or relating to Apparatus for use in Bending and
Welding Bars, Girders, or the like.
A communication from FRANÇOIS EGIDE TIMMERMANS, Manufacturer, of Rue
Breydel, Antwerp, and GUILLAUME and ADOLPHIE CHARLET, Merchants, of
22, Boulevard du Jardin Botanique, Brussels, in the Kingdom of Belgium.
I, ALFRED JULIUS BOULT, of 111, Hatton Garden, in the County of Middlesex,
Chartered Patent Agent, do hereby declare the nature of this invention to be as
follows:-
―
This invention relates to a machine chiefly destined for bending iron bars,
joists, girders and the like of any cross-section and size. By means of this
machine the laborious and expensive work of a smith is saved as the machine is
constructed so that a workman can with the greatest case and security bend to a
desired angle in a very short time girders made of Ų-iron, angle-iron, Ţ-iron
round or square iron rods or bars and similar structures.
The machine consists of a frame to which is secured a table or bed-plate. This
table is circular and serves to receive the apparatus for working the bars. On
one half or side of the table there is secured a plate on which is arranged a toothed
bar or plate. Facing this toothed part there is a lever also provided with teeth.
This lever can be set in any desired proximity to the toothed plate by inserting
its pin in a suitable hole in the supporting plate. On the other side of the table
a worm is supported in a bracket. The bracket is in one piece with or rigidly
connected to the table. The worm is keyed or formed on a spindle rotatably
supported in a bearing and provided at its free end with a hand wheel. The
worm engages with the teeth of a second plate. This plate is pivoted to the table
by means of a pin and is provided with a toothed plate or bar corresponding to
the toothed bar of the other plate and facing it there is adjustably arranged a lever
provided with teeth similar to the other toothed clamping lever. The teeth of
the second lever are formed in opposite direction to those of the opposite plate
and serve to clamp the material to be treated. When a girder or bar is placed
between the teeth and clamped by adjusting the lever it can be bent at an angle
by turning the hand wheel. Of course large girders must be first heated at the
place where they are to be bent. Owing to the arrangement of the hand wheel
and worm, any desired power may be exercised so that very thick girders can be
bent slowly and without shocks.
With such a machine it is possible simultaneously to weld and to bend two
iron joists or plates. By rotating the toothed plate by means of the worm
the portions at the points where the material is secured by the clamps are moved
relatively to each other, the outer layer i.e., the one which lies outside after the
bending, being stressed, more than the inner, whereby it is pressed with con-
siderable force against the latter. If the two parts have been previously sufficiently
heated, there will be a perfect welding at the bend.

page_text: The whole machine is constructed so that it occupies as little space as possible
and can be easily set up in position.
7
BOULT & WADE,
Agents for the Applicant.
Improvements in or relating to Apparatus for use in Bending and
Welding Bars, Girders, or the like.
A communication from FRANÇOIS EGIDE TIMMERMANS, Manufacturer, of Rue
Breydel, Antwerp, and GUILLAUME and ADOLPHE CHARLET, Merchants, of
22, Boulevard du Jardin Botanique, Brussels, in the Kingdom of Belgium.
I, ALFRED JULIUS BOULT, of 111, Hatton Garden, in the County of Middlesex,
Chartered Patent Agent, 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 chiefly destined for bending iron bars,
joists, girders and the like of any cross-section and size. By means of this
machine the laborious and expensive work of a smith is saved, as the machine is
constructed so that a workman can with the greatest ease and security bend to a
desired angle in a very short time girders made of U-iron, angle-iron, T-iron,
round or square iron rods, or bars and similar structures.
In the accompanying drawing
Figure 1 is a side-elevation and
Figure 2 a plan of a machine according to this invention.
The machine consists of a frame A to which is secured a table or bed-plate A¹.
This table is circular and serves to receive the apparatus for working the bars.
On one half or side of the table A' there is secured a plate C on which is arranged
a toothed bar or plate C. Facing this toothed part there is a lever D also provided
with teeth. This lever can be set in any desired proximity to the toothed plate C¹
by inserting its pin H in suitable holes in the supporting plate C. On the other
side of the table a worm F is supported in a bracket E The bracket E' is
preferably in one piece with or rigidly connected to the table A¹. The worm is
keyed or formed on a spindle E rotatably supported in a bearing E2 and provided
at its free end with a hand wheel G. The worm F engages with the teeth of a
second plate B. This plate is pivotted to the table A¹ on a pin B' and is provided
with a toothed plate or bar 132 corresponding to the toothed bar C₁ of the other
plate C, and facing it there is adjustably arranged a lever D' provided with teeth,
similar to the other toothed clamping lever. The teeth of the second lever, D', are
formed in opposite direction to those of the opposite plate and serve to clamp the
material to be treated. When a girder or bar is placed between the teeth and
clamped by adjusting the levers D, D', it can be bent at an angle by turning the
hand wheel G. Of course large girders must be first heated at the place where
they are to be bent. Owing to the arrangement of the hand wheel and worm, any
desired power may be exercised so that very thick girders can be bent slowly and
without shocks.
With such a machine it is possible simultaneously to weld and to bend two
iron joists or plates. By rotating the toothed plate B by means of the worm,
the portions at the points where the material is secured by the clamps are moved
relatively to each other, the outer layer, ie, the one which lies outside after the

page_text: bending, being stressed more than the inner, whereby it is pressed with con-
siderable force against the latter. If the two parts have been previously sufficiently
heated, there will be a perfect welding at the bend.
The whole machine is constructed so that it occupies as little space as possible
and can be easily set up in position.
Having now particularly described and ascertained the nature of the said
invention, as communicated to me by my foreign correspondents, and in what
manner the same is to be performed, I declare that what I claim is:-
1. A machine for use in bending or bending and welding joists, girders and other
plates or bars in which the bar to be worked is gripped between adjustable clamps
provided with teeth and hent by moving one of said clamp parts relatively to the
other substantially as described."
2. A machine of the kind described comprising a fixed plate such as C provided
with clamp members such as C and D, and a pivotted movable plate, such as B,
also provided with clamp members, and means for partly rotating the latter plate
about its pivot, substantially as described.
3. The combination and arrangement of parts constituting the complete machine
for bending bars or plates substantially as described or illustrated in the
accompanying drawing.
בד
13
لبيت
1
P
1900