Machine for use in Jumping Up, Welding and Bending Metal.
Year: 1898

page_text: Date of Application, 7th Nov., 1898
Complete Specification Left, 8th Aug., 1899-Accepted, 4th Nov., 1899
Machine for use in Jumping Up, Welding and Bending Metal.
A communication from F. TIMMERMANS, of Antwerp, and the Firm of G. & A.
CHARLET, of Brussels, in 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 an apparatus by means of which both bending and
jumping up of metal bars of any shape and size can be easily performed. In
other words the invention relates to a machine which is to replace the long and
expensive work of a smith in welding and jumping up; for this purpose the
machine is arranged so that any workman can easily and surely bend any bar
of U-shape, any angle-iron, any round or square bar to a sharp or rounded edge
and an angle of any size, in a time about twenty times quicker than an ordinary
smith would take. The same applies to the jumping up of bars of any cross
section.
The machine is constituted by a frame on which rests a round table forming
a support for various pivotted or hinged parts. These parts comprise a slide which
is either longitudinally movable or remains fixed according as the operation to be
performed is that of bending or jumping up.
This slide has cast on it at the lower end two feet or projections sliding in
the table.
To the upper surface of said slide is permanently secured a bar provided with
teeth for gripping the work and co-operating with a similarly shaped end of a
pivotted lever.
At the side of the table is arranged a worm rotating in a bracket cast on or
connected to said table. This worm is operated by a spindle supported in a
bracket and rotated by means of a hand wheel for performing bending operations.
The worm engages with a sector provided with helical teeth on its circumference.
This sector is movable and has secured to it a toothed bar co-operating with a
second pivotted lever provided at the end with similarly shaped gripping teeth.
The table is provided in the centre with a hole in which engages the central
pivot of the movable sector so that when the worm is rotated by means of the
hand wheel, the sector turns through an angle about said pivot. When an iron
bar to be bent has been placed on the one hand between the two sets of grips and
heated at the point between them at which it is to be bent to a suitable degree
then by rotating the hand wheel it is bent and at the same time the material is set.
It must be pointed out that considerable force may be obtained by means of the
hand wheel and of the worm, so that bending may be effected slowly and without
shocks. Owing to the arrangement described, the machine may be used for
welding and pressing together two pieces of metal, as well as for bending.
As the pressing together of two parts in a straight line is one of the most
important operations, the machine according to this invention is provided with a
device enabling said operation to be easily performed. To this end the table is

page_text: formed with a box at its front, containing guides with which engage the feet of
the slide.
Between these feet is placed a connecting rod with two heads one of which is
movable about a pin the other one being placed on the crank pin of a crankshaft
provided outside the table with a spur wheel keyed to it and engaging with a
spur pinion. This latter pinion is loose on the worm shaft and provided with a
coupling device with which the hand wheel, provided with a similar device, is
adapted to engage.
The motion is transmitted as follows:-
The slide is rendered movable by its bolts being withdrawn, then the hand
wheel is coupled to the pinion which transmits its rotary motion to the wheel
secured to the crankshaft supported in suitable bearings. The crank is then also
rotated which rotation is converted, by means of the two-headed connecting rod
into a reciprocating motion of the slide, the amount of this motion depending
on the throw of the crank. When an iron bar has been placed between the grips
on the one side and those of the movable sector on the other side which has been
fixed by means of a bolt placed in a suitable hole, and when the part to be com-
pressed has been heated in a suitable manner, the hand wheel is rotated whereby
the slide is reciprocated so as to effect a compression in proportion to the throw
of the crank.
A modified construction is provided with a device for rectilinear compression
which has proved very successful. This device is as follows:-
The slide is provided with a dove tail engaging with the table. The longi-
tudinal movement required for the rectilinear compression is obtained by means
of a horizontally arranged eccentric the upper portion of which engages with a
recess in the slide.
The guiding of said eccentric is effected by means of a plate or part bolted to
the table. The shaft on which the eccentric is mounted, is provided at the other
end with a toothed wheel engaging with a worm supported in a bracket secured
to the table.
The transmission of movement is effected as follows:-
The hand wheel is placed on the spindle of the worm and turned, whereby
the worm wheel is also rotated and turns the eccentric which causes the slide to
move longitudinally to an extent depending on the travel or rotation of the
eccentric.
It may be mentioned that the transmission of movement may be also effected
by means of two spur-wheels instead of by worm-gearing.
Dated this 7th day of November 1898.
BOULT & WADE,
Agents for the Applicant.
machine for use in Jumping Up, Welding and Bending Metal,
A communication from F. TIMMERMANS, of Antwerp, and the Firm of G. & A.
CHARLET, of Brussels, in 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 ascer-
tained in and by the following statement:-
This invention relates to an apparatus by means of which both bending and
jumping up of metal bars of any shape and size can be easily performed. In

page_text: The machine is constituted in both cases by a frame A on which rests a round
table A forming a support for various parts of the apparatus. These parts
comprise a slide which is either longitudinally movable or remains fixed accord-
ing as the operation to be performed is that of bending or jumping up.
This slide has cast on it at the lower end two feet or projections c¹ and c¹ sliding
in the table A¹.
To the upper surface of said slide is permanently secured a bar C provided with
teeth for gripping the work and co-operating with a similarly shaped end of a
pivotted lever D.
At the side of the table A¹ is arranged a worm F rotating in a bracket E¹ cast
on or connected to said table A¹. This worm F is operated by a spindle E sup-
ported in a bracket E2 and rotated by means of a hand wheel G for performing
bending operations. The worm engages with a sector B provided with helical
teeth on its circumference. This sector B is movable and has secured to it a
toothed bar 132 co-operating with a second pivotted lever I provided at its end
with similarly shaped gripping teeth.
The table A' is provided in the centre with a hole in which engages the central
pivot B of the movable sector B so that when the worm F is rotated by means
of the hand wheel G the sector B turns through an angle about said pivot B¹.
When an iron bar to be bent has been placed on the one hand between the grips C
and D and on the other hand between the grips B³ 1) and heated at the point
between them at which it is to be bent to a suitable degree then by rotating the
hand wheel it can be bent and at the same time the material will be "
set."
It must be pointed out that considerable force may be obtained by means of the
hand wheel and of the worm, so that bending may be effected slowly and without
shocks. Owing to the arrangement described, the machine may be used for weld-
ing and pressing together two pieces of metal as well as for bending.
As the pressing together of two parts in a straight line is one of the most
important operations, the machine according to this invention is provided with a
device enabling said operation to be easily performed. To this end the table A' is
formed with a box H at its front containing guides with which engage the feet c¹
and c of the slide C.
Between these feet is placed a connecting rod J with two heads J and J¹, one
of which is movable about a pin O, the other one being placed on the crank pin K
of a crank shaft L provided outside the table A¹, with a spur wheel M keyed to it
and engaging with a spur pinion N. This latter pinion is loose on the worm
shaft E and provided with a coupling device with which the hand wheel G, pro-
vided with a similar device, is adapted to engage.
Figure 1 the hand wheel G can rotate freely upon the shaft E, and therefore only
In the position shown in
the pinion N and wheel M will be driven when it is rotated. The outer end of
the shaft E is provided with a feather e with which the hub of the hand wheel G
engages when it is drawn outwardly against the retaining nut. In this position
the shaft E will be rotated when the hand wheel is turned, but as the latter is no
longer coupled to the pinion N neither it nor the wheel M will be rotated. In

page_text: this way it will be evident that either the worm F, or the pinions N and M, can
be rotated as desired.
The motion is transmitted as follows:-
The slide C is rendered movable by its bolt X being withdrawn, then the
hand wheel is coupled to the pinion N which transmits its rotary motion to the
wheel M secured to the crank shaft L, supported in bearings Y Y. The crank K
is thus also rotated which rotation is converted, by means of the two-headed con-
necting rod J into a reciprocating motion of the slide C, the amount of this
motion depending on the throw of the crank. When an iron bar has been placed
between the grips C and D on the one side (Figure 1) and 12 and D of the
movable sector B on the other side, which sector has been fixed by means of a
bolt X placed in a suitable hole, and when the part to be compressed has been
heated in a suitable manner the hand wheel G is rotated whereby the slide C is
moved inwards so as to effect a compression in proportion to the throw of the
crank.
The modified construction shown in Figures 4 to 8 is provided with a device
for rectilinear compression which has proved very successful. This device is as
follows:
-
The slide C is provided with a dovetail C2 engaging with a corresponding pro-
jection on the table A¹. The longitudinal movement required for the rectilinear
compression is obtained by means of a horizontally arranged eccentric H¹ the
upper portion of which engages with a recess I in the slide C.
The guiding of said eccentric H' is effected by means of a plate or part J2 bolted
to the table A¹. The shaft on which the eccentric is mounted is provided at the
other end with a toothed wheel K¹ engaging with a worm M' supported in a
bracket N1 secured to the table A¹
The transmission of movement is effected as follows:-
The hand wheel G is placed on the spindle O¹ of the worm M¹ and turned,
whereby the toothed wheel K¹ is also rotated and turns the eccentric H¹ which
causes the slide C to move longitudinally to an extent depending on the travel
of rotation of the eccentric.
It may be mentioned that the transmission of movement may be also effected
by means of two spur-wheels instead of by worm gearing.
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 designed to effect in an automatic manner the bending as well as
the compression of metal bars or the like comprising a table provided with two
sets of clamps for holding the article to be acted upon and means for moving
the sets of clamps relatively to each other to bend the clamped article in combi-
nation with means for the rectilinear compression of the bar or article substan-
tially as described.
2. In a machine of the kind described means for effecting the compression of
the clamped metal bar or the like comprising a slide carrying one set of clamping
jaws and gearing to effect the gradual movement of the slide and its appurte-
nances to produce compression on the bar substantially as described.
3. The complete apparatus for use in bending, welding and compressing metal
bars and the like substantially as described and illustrated in Figures 1 and 2
or in Figures 4 and 5 of the accompanying drawings.
Dated this 8th day of August 1899
BOULT & WADE,
Agents for the Applicant.