Improved Machine for Making Hexagon Nuts.
Year: 1894

page_text: Date of Application, 10th July, 1894
Complete Specification Left, 4th Apr., 1895-Accepted, 24th May, 1895
PROVISIONAL SPECIFICATION.
Improved Machine for Making Hexagon Nuts.
HENRY BENNETT, Bull's Head Inn, near Oldbury, Nut Maker, FREDERICK
BENNETT 12 High Street Blackheath Staffs, Nut Maker do hereby declare the
nature of this invention to be as follows :-
The machine is an improvement in that it will make hexagon nuts off flat bars
(1 x to make a nut) with no waste except by punching.
The tools or dies to cut the iron as described below, cut through the thick way,
one cutter meeting the other and being >< shaped, leave the end of the iron
pointed, thus being partly shaped for the next nut which is cut off same as first, and
so forth thus making no waste except by punching.
This then is the improvement on the present system of cutting the nut out of the.
flat side of the iron, thus leaving the iron shaped
and when the next nut is
cut off leaving a piece of waste shaped [><.
I
A in the accompanying drawing represents the bed or table of the machine.
B is a roller or shaft (6'); at the back of the bed, and beyond that is
another shaft, C, on which is a fly wheel and a pinion wheel, and driving pulleys.
In the centre of the shaft B is a bevel working with another bevel cog, which is
fastened on to a small shaft which works in the bottom of the headstock D on a
level with the shaft B, on this small shaft is also a spur wheel E which works
another spur wheel F thus driving the shaft G in upper part of the headstock D.
On this end of the shaft G is a cam H and two smaller cams or tappets, the cam H
is for the purpose of driving up and down a slide containing at the bottom a snap
fastened by two lock-nuts, the smaller cams or tappets to drive up and down
another slide holding a punch to work through the snap I. J and K are two cams
working on the shaft B for the purpose of driving a slide each, each slide working
from the shaft B, this end of each of these slides is tapered so that when driven up
by the cams J and K they are able to force or drive another slide each at angles.
As the cams J and K revolve, the work or pressure leaves the slides which are
then pulled back by springs, and are forced up again by the revolving of the said
cams J and K. The dies to cut off and shape the nut should be about 1" broad
and 2" deep and of steel with a 2" shank, one to be fastened in the slide N, the.
öther in slide O, by detachable caps. These dies should be hollowed out so that
when closed the centre should be hexagon, and should be filed out to the size of
but you wish to make. These dies should have a kind of slot filed on the outside
near to the top and pointing to the centre, so that when driven up by the slides,
(the iron being pushed against a back gauge forming part of the back of the dies)
these cutters cut through the iron and thus cut off sufficient metal to fill the dies..
Immediately the iron is cut off, the cam H. has revolved so far as to force down
the slide containing the snap I (which should fit the dies to a nicety) so low as to
squeeze the metal into shape, at the bottom of the dies. Whilst the snap is on the
nut the punch should then go through the nut quickly as possible by means of
the small tappets in shaft G driving down the slide holding the punch. By the
revolving of the cams J and K the dies then open or go, back.
By the side of cam K should be a small tappet fixed in the roller. B. to drive a
bar across the bed from the roller, this bar to work a swivel with another.short bar.
attached for the purpose of kicking off the nut immediately the snap is leaving:

page_text: In front of the snap is box through which to feed into the dies, and under which
the short bar attached to the swivel to kick off the nut, should work.
Dated this 30th day of August 1894.
FRED. BENNETT.
HENRY BENNETT.
Improved Machine for Making Hexagon Nuts.
We, HENRY BENNETT, of Bull's Head Inn, near Oldbury and FREDERICK
BENNETT, of 12 High Street, Blackheath, bath of Staffordshire Nut Makers, do
hereby declare the nature of our said invention aud in what manner the same is to
be performed to be particularly described and ascertained in and by the following
statement:-
Our invention has for its object the manufacture of hexagon nuts from flat bars
by which we save the waste in the metal which has hitherto been necessary when
the nuts have been cut from the flat face by a hexagon tool in the usual way.
In order that our invention may be clearly understood and more easily carried
into practice we have appended hereunto a double sized sheet of drawings upon
which we have fully illustrated the nature of our said improvements together with
the mode of carrying the same into effect.
Figure 1, is a front view of the machine for making hexagon nuts in accordance
with our improvements.
Figure 2., is a plan of the cutters in course of operation upon the bar.
Figure 3., is a similar plan to Figure 2 but showing the cutters and nut after
operation.
Figure 4., is an enlarged sectional elevation of the centre of the machine.
Figure 5., is a plan of Figure 4 with the top and side tools removed.
In carrying our invention into effect we take the bar X froin which the nuts are
to be formed and cut it through on the thick face from each side the cutters M
and N being formed with the cutting edges m' and n¹ and shaped or thickened out
at m² and to an angle which is the same as that of the hexagon. The nut Y is
thus cut off and at the same time leaves the end of the bar X pointed at 21 and of
a suitable shape for forming the one side of the next nut to be cut and thus obviates
the waste of the intermediate piece which by the old process it has been necessary
to cut away to make the two sides of the nut correspond. The backs m³ and n' of
the mouth of the dies M and N when coming in contact with the square y' of the
nut forms a guage to the extent of which the cutters are limited to travel thus
preventing the cutting edges m' and n' from injuring each other while the ears m
'and n are provided to prevent the nut from being mis-shapen by the cutting
process. After the nut Y has been cut it may be pressed from the dies by a
plunger into a hexagonal shaped tube against the resistance of a spring bolt which
stamps it into a finished state after which it is raised for removal and ejected.
The machine I prefer to use for this purpose is illustrated by Figure 1 in which
the roller or shaft B is mounted in suitable bearings upon the bed A and is caused
to revolve through the gear wheels 6' with the driving shaft C which bears the fly
wheel V and driving pullies U.
Central upon the shaft B a bevil wheel is formed upon a cross shaft which works
in the bottom of the headstock D on a level with the shaft B and upon this cross
shaft the spur wheel E is mounted to gear with the spur wheel F which is mounted
above it upon the shaft h' which shaft also bears the cam H. having the two
tappets and h².
The cutters M and N are mounted to slide upon the bed A and are actuated
from the shaft B by the cams J and K through the cross slides and k¹. These

page_text: cross slides j¹ and ¹ are tapered at their ends and engage with similar tapers formed
upon the ends of. the cutter slides M and N so that when the cross slides are forced
forward by the cams J and K they in turn operate the cutter slides M and N in
a forward direction the return movement being effected by suitable springs.
The slide S¹ is mounted in the headstock D and is provided with the adjustable
bolt S which is secured by lock nuts to the slide S' which is operated by the
tappets and h³ and is provided with the hexagonal punch s for punching the nut
into the socket or tube Lagainst the resistance of the bolt P which is supported
by the strong spring R from the bed A of the machine the rebound of which
spring raises the nut from the socket L. The cutters M and N are made detach-
able in their slides and a brush or tappet is arranged in connection with one of the
cams to brush away each nut after it has been finished.
Of course we do not confine ourselves to the exact details of the machine herein
described as we may vary these without departing from the nature of our said
improvements.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we declare that what
we claim is―
1st. The mode of and means for forming hexagonal nuts without waste of metal
substantially as herein set forth and shown upon the accompanying drawings.
2nd. A machine for cutting hexagonal nuts without waste of metal substantially
as herein set forth and shown upon the accompanying drawings.
3rd. In the manufacture of hexagonal nuts the cutters M and N substantially as
and for the purpose herein set forth and shown.
4th. In the manufacture of hexagonal nuts the combination of the plunger S
spring bolt P and socket L substantially as and for the purpose herein set forth
and shown.
Dated this 3rd day of April 1895.
GEORGE BARKER,
77, Colmore Row, Birmingham, Agent for Applicants.