New or Improved Machines or Tools for the Manufacture of Screws, Rivets, Bolts, Mouldings, Shafts, and the like.
Year: 1892

page_text: .Date of Application, 31st May, 1892
Complete Specification Left, 2nd Feb., 1893-Accepted, 4th Mar., 1893
PROVISIONAL SPECIFICATION.
New or Improved Machines or Tools for the Manufacture of Screws,
Rivets, Bolts, Mouldings, Shafts, and the like.
1, JULES LE BLANC, of 52 Rue du Rendez-vous, Paris, France, Mechanical
Engineer, do hereby declare the nature of this invention to be as follows:-
My invention relates to machinery or tools whereby pieces of metal are rolled.
between two segmental parts turning in opposite directions in such manner as to
form various kinds of articles such as screws, bolts, rods, mouldings, shafts, and
the like.
According to my invention, I provide a frame carrying two bearings, in one of
which is a hollow shaft carrying an external segmental wing. Passing through the
interior of the sleeve. shaft is another shaft carrying an internal segmental wing, and
the aforesaid segmental wings are so arranged, that as they are rotated in opposite
direction, they pass each other in concentric circular planes at a fixed distance
from one another, and should be formed with or carry dies when required to produce
the desired forms upon. the piece to be operated upon. On the outer or sleeve shaft
is mounted a toothed worm wheel, driven by a worm on a transverse first motion;
shaft. This first motion shaft is provided with a'pinion, to drive a second pinion
on.a second transverse shaft, also carrying a worm, gearing with and driving a
second toothed worm wheel, keyed on the interior shaft. A suitable fly wheel may
be provided; a guide or carrier, situate at the segment end of the shaft, serves to
receive the piece to be worked.
The foregoing describes an application of my invention, but I do not limit myself
to the precise arrangement of framework and driving devices. By placing a piece
of metal to be worked on the guide or carrier, and the rotation of the segmental
wings being effected in reverse directions, the piece will be taken in between the.
wings, which produces the impression of threads or grooves or otherwise, and finally
throws out the finished piece. This arrangement of machine enables me to shape a
piece of metal during a fraction of a turn of the machine.
The supply or feeding of the machine can be effected in any convenient manner,
thus 1 may,
for example, apply a table in front of the machine in such manner that
it will only be necessary to place thereon pieces of hot iron, the one after the other,
and to push them into place in order that they come on the guide, or I can establish
at the head of the machine any continuous supplier or feeder, facilitating a large
production.
Dated this 31st day of Mar 1892
COMPLETE SPECIFICATION.
New or Improved Machines or Tools for the Manufacture of Screws,
Rivets, Bolts, Mouldings, Shafts, and the like.
I, JULES LE BLANC, of 52 Rue du Rendez-vous, Paris, France, Mechanical
Engineer, 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 :-
. My invention relates to machinery or tools whereby pieces of metal are rolled
:

page_text: between two segmental parts turning in opposite directions in such manner as to
form various kinds of articles such as screws, bolts, rods, mouldings, shafts, and
the like.
In order that my said invention may be readily understood and carried into
practice, I have represented the same in the accompanying drawing in which
Fig. 1 shews a vertical longitudinal section of a "hot way" tapping machine,
constructed according to my said invention. Fig. 2 is a vertical transverse section.
thereof. In both of these figures the machine is shewn with its several parts in
position for the first stage of the operation.
Fig. 3 is a plan of the machine but shewing the finished piece in the fourth and
last stage of the operation.
Figs. 4, 5, 6, and 7, shew each one of the four successive stages of the
manufacturing.
Similar letters of reference indicate similar parts in these several figures.
According to my invention, I provide a main frame a carrying two bearings, in
one of which is a hollow shaft b6 carrying an external segmental wing c; passing
through the interior of the sleeve shaft is another shaft d carrying an internal
segmental wing e, and the aforesaid segmental wings c and e are so arranged that
as they are rotated in opposite directions, they pass each other in concentric circular
planes at a fixed distance from one another, and should be formed with or carry
dies, when required to produce the desired forms upon the pieces to be operated
upon. On the internal shaft d is mounted a toothed worm wheelf which is driven
by a worm g on a transverse shaft. This transverse shaft is provided with a
pinion to drive a second pinion i on a transverse first motion shaft, also carrying
a worm gearing with and driving a second toothed worm wheel 1, keyed on the
external or sleeve shaft b. Fast and loose pulleys k and m are fitted to the first
motion shaft, and a suitable fly wheel n may also be provided; a guide or
carrier 0, situate at the segment end of the shaft, serves to receive the piece p to
be worked. .
The foregoing describes an application of my invention, but I do not limit myself
to the precise arrangement of framework and driving devices. By placing a piece
of metal to be worked on the guide or carrier, and the rotation of the segmental
wings being effected in reverse direction, the piece will be taken in between the
wings, which produces the impression of threads or grooves or otherwise, and
finally throws out the finished piece. This special arrangement of machine permits
the scales of iron to get out, while allowing the tools to work in an equal manner.
in order to shape a piece of metal during a fraction of a turn of the machine; the
piece to be shaped turning on itself without getting out of order.
The supply or feeding of the machine can be effected in any convenient manner,
thus I may,
for example, apply a table in front of the machine in such manner that
it will only be necessary to place thereon pieces of heated iron, the one after the
other, and to push them into place in order that they come on the guide; or I can'
establish at the head of the machine any continuous supplier or feeder of suitable
construction, facilitating a larger production.
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. In machines for the manufacture of screws, rivets, bolts, mouldings, shafts,
and the like, the two concentric segmental parts, one of which, c, acts by its internal
side, and the other e, by its external one, the tools serving to shape the piece
of metal, which turns on itself without any relative displacement, and the two
segmental parts turning in opposite directions, also without displacing themselves
relatively all substantially as described and shewn in the accompanying drawings
and for the purposes specified..
;
2. The general construction, combination, and arrangement of parts composing
:

page_text: my improved machinery for the manufacture of screws, rivets, bolts, mouldings,
shafts, and the like, all acting as and for the purposes hereinbefore described and
illustrated with reference to the accompanying drawings.
Dated this 2nd day of February 1893
JULES LE BLANC
Brewer & Son,
London and Leeds, Agents.