IMPROVEMENTS IN MACHINERY OR APPARATUS FOR BENDING RODS, BARS, SHEETS AND OTHER FORMS OF METAL
Year: 1884

page_text: I ROBERT STOREY of Darlington in the County of Durham, Foreman Machinist,
do hereby declare the nature of the said Invention for IMPROVEMENTS IN
MACHINERY OR APPARATUS FOR BENDING RODS, BARS, SHEETS AND OTHER FORMS
OF METAL to be as follows:-
Heretofore bending machines have been constructed with three rolls, two of
which, according to one arrangement revolve in fixed bearings, whilst the third
revolves in bearings which are capable of travelling within suitable guides and are
operated by screws for adjustment of the roll to the work required to be produced.
. According to another arrangement only one of such rolls revolves in fixed
bearings, whilst the others revolve in adjustable bearings.
In both the above cases lotion has been given to the rolls by means of gearing
consisting of a train of toothed wheels and toothed pinions, so arranged as to give
the required speed to the rolls. This arrangement of driving gear is expensive,
cumbersome, and involves a considerable amount of friction.
According to my present invention I adopt similar arrangements of rolls to
those above described, but in lieu of giving motion thereto by a train of toothed
wheels and toothed pinions, I employ a worm wheel fixed on the axis of one of the
rolls and a worm or screw gearing into the said worm wheel, said worm or
screw being formed or fixed on a shaft to which motion is given in any suitable
manner.
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2004

page_text: I ROBERT STOREY of Darlington in the County of Durham, Foreman Machinist
do hereby declare the nature of the said Invention for IMPROVEMENTS IN
MACHINERY OR APPARATUS FOR BENDING RODS, BARS SHEETS AND OTHER FORMS
OF METAL, and in what manner the same is to be performed to be particularly
described and ascertained in and by the following statement:-
Heretofore bending machines have been constructed with three rolls two of
which according to one arrangement revolve in fixed bearings whilst the third
revolves in bearings which are capable of travelling within suitable guides and are
operated by screws for adjustment of the roll to the work required to be produced.
According to another arrangement only one of such rolls revolves in fixed bearings
whilst the others revolve in adjustable bearings.
In both of the above cases motion has been given to the rolls by means of
gearing consisting of a train of toothed wheels and toothed pinions so arranged as
to give the required speed to the rolls. This arrangement of driving gear is
expensive, cumbersome, and involves a considerable amount of friction. According
to my present invention I adopt similar arrangements of rolls to those above
described but in lieu of giving motion thereto by a train of toothed wheels and
tootlied pinions I employ a worm wheel fixed on the axis of one or more of the
rolls and a worm or screw gearing into the said worm wheel, said, worm or
screw being formed or fixed on a shaft to which motion is given in any suitable
manner.
And in order that my said Invention may be more clearly understood and
readily carried into effect I will proceed aided by the accompanying drawings
more fully to describe the same.
Description of the drawing which represents an end view of a small bending
machine or a plan of a large bending machine provided with my improvements.
a is one of the rollers which works in bearings b which are capable of adjustment
to and fro in ways c¹ formed in the frame c and which bearings are locked in
position endwise in the frame c by locking forks or slips d or in other suitable
manner.
e, e, are other rollers which are mounted in bearings f. f. capable of adjustment
towards and away from each other in ways c².
Each of the rollers a and e, e is provided with adjusting means consisting of
screws g fixed to its bearings b or f, f, which screws are moved to and fro end wise
thereof by worm wheels h tapped to fit the same and operated by worms or
screws i. I prefer to fix the worms or screws i of each roller on the same shaft i¹,
so that by turning such shaft by means of the handle both ends of each roller
can be simultaneously adjusted.
On the axes of the rollers e, e, I fix worm wheels e¹, e'. which are taken into and
receive motion from a worm or screw k to which motion is given in any suitable
manner. By, these means I am enabled to give motion to the rollers e, e. in a
simple and efficacious manner, and such driving means enables me to adjust both of
the said rollers towards or from each other without dismounting any part of the
gearing whilst I am enabled to bend any description of work easily and to bend
the same completely from end to end thereof without the necessity for using hand
labour to complete the bending close to the ends.
This method of giving motion to the rolls of bending machines is applicable to
various arrangements of bending machines and will be readily applied by a
competent mechanic without further description.

page_text: In large machines I prefer to mount the rollers a, e, e vertically in the machine
in which case the accompanying drawing would represent a plan of the machine,
this arrangement enables the roller a, after removal of the locking forks or slips d,
to be readily lifted out of the machine and also enables large plates to be fed to
the machine on edge thus greatly facilitating the work whilst the introduction of
the work and the removal of the same from the machine is also greatly facilitated.
Having now particularly described and ascertained the nature of my said
Invention and in what manner the same is to be performed I declare that what
I claim is giving motion to the rolls of bending machines by a worm or screw k
and one or more worm wheels e¹, e¹ substantially as herein shown and described.
Onthou 1001