IMPROVEMENTS IN MACHINERY FOR FORGING NUTS
Year: 1885

page_text: I EDWARD DAVIES of Bay Lane, Atherton near Manchester in the County of
Lancaster, Screw Bolt Manufacturer, do hereby declare the nature of my Invention
for "IMPROVEMENTS IN MACHINERY FOR FORGING NUTS," to be as follows:-
My invention relates to improvements in machinery for forging or manufacturing
untapped nuts from heated bars, and consists of a suitable frame provided with
journals or bearings carrying shafts or centres, on which are disposed suitable cams
or other equivalents for operating the slides carrying indenters for pressing or
forming the shape of the nuts, in conjunction with a V die forming two sides of
the nut, which can be fixed or movable. The slides carrying the indenters are
mounted on the frame of the machine, in close proximity to the die or cup on
which the heated bar is placed, after which the indenters advance laterally and
form the sides of the nut, by which the latter is held while the hole is formed by a
punch fixed in a vertical slide; this slide is operated by a cam from the centre or
other driving shaft.
On the side of the machine is mounted a vertical bar on the bottom end of
which is disposed a flatner operated by a pin attached to the slide carrying the
punch working in a slot in the vertical bar, and which presses the flatner onto the
nut. After the punch has completed its downward stroke and the newly formed
nut is held by the flatner on the die or cup, the indenters recede by the action of
the aforesaid cams on suitable levers pivotted on the frame of the machine, which
operate on pins or centres attached to the slides carrying the same. Immediately
the stroke of the punch is completed and the upward stroke takes place, the Hatner
is released, and lifted by a spring fixed in a spring box at its upper end on the
frame work, when the formed nut is removed and the machine is ready for the
next operation.
The machine is driven in any convenient way by suitable gearing fixed on the
aforesaid shafts, which are provided with spur wheels or other equivalents.
Dated this 2nd day of May 1885
EDMUND CHADWICK,
Agent for the Applicant..

page_text: !
I EDWARD DAVIES of Bay Lane, Atherton near Manchester in the County of
Lancaster Screw Bolt Manufacturer, do hereby declare the nature of my Invention
for "IMPROVEMENTS IN MACHINERY FOR FORGING NUTS," 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 improvements in machinery for forging or manufacturing
untapped nuts from heated bars and consists of a suitable frame provided with
journals or bearings carrying shafts or centres, on which are disposed suitable
cams or other equivalents for operating the slides carrying indenters for pressing
or forming the shape of the nuts in conjunction with a V die forming two sides of
the nut. The slides carrying the indenters are mounted on the frame of the
machine in close proximity to the die or cup on which the heated bar is placed,
after which the indenters advance laterally and form the sides of the nut, by which
the latter is held while the hole is formed by a punch fixed in a vertical slide: this
slide is operated by a cam from the centre or other driving shaft.
On the side of the machine is mounted a vertical bar on the bottom end of
which is disposed a flatner operated by a pin attached to the slide carrying the
punch; the pin works in a slot in the vertical bar and presses the flatner onto the
nut. After the punch has completed its downward stroke and the newly formed
nut is held by the flatner on the die or cup the indenters recede by the action of
the aforesaid cams on suitable levers pivotted on the frame of the machine, which
operate on pins or centres attached to the slides carrying the same. Immediately
the stroke of the punch is completed and the upward stroke takes place the flatner
is released and lifted by a spring fixed in a spring box at its upper end on the
frame work, when the formed nut is removed and the machine is ready for the
next operation.
The machine is driven in any convenient way by suitable gearing fixed on the
aforesaid shafts, which are provided with spur wheels or other equivalents.
In order that my Invention may be more fully understood and readily carried
into operation I will now proceed to describe the drawings upon the sheet hereunto
annexed, the same letters and numerals of reference being used throughout all the
figures to indicate the same or corresponding parts of my Invention.
DESCRIPTION OF DRAWINGS.
Fig. 1 is a front elevation of my improved construction of machine for forging
nuts; Fig. 2 is a sectional plan through line A. B; and Fig. 3 is a sectional
elevation through line C. D.

page_text: manufactured, is placed on the die or cup 10, when the indenters advance towards
each other by the action of the cams 4 and forms the sides of the nut outside the
V die 7. While the indenters 6 are holding the newly formed nut the slide 11
descends with the punch 12 and forms the hole; the burr being pushed through the
hole 13 in the die or cup 10. The slide 11 is mounted on the front of the machine
in the slide bars 14, the latter being secured by the set screws or studs 15 or their
equivalents. The slide 11 is provided on the back side with a slot or recess in
which slides the block 16 with the crank pin 17 as the crank 18 on the end of the
centre driving shaft 20 revolves.
On the end of the machine is mounted the shaft 19 in the bearings or
pedestals 21, and is provided with the fly wheel 22, bevel pinion 23, fast pulley 24,
and loose pulley 25, being driven by a belt from any suitable gearing. The bevel
pinion 23 gears into the bevel wheel 26 on the shaft 27 which revolves the spur
pinion 28 gearing into the spur wheel 29 on the cam shaft 3. The spur wheel 29
gears into the spur wheel 30 and drives the centre driving shaft 20 and the slide 11
carrying the punch 12. The spur wheel 30 gears into the spur wheel 31 on the
shaft 3. The spur wheels 29, 30, and 31 are of equal diameters by which an
uniform action is given to the indenters, punch, and flatner.
On the front side of the machine is mounted the vertical sliding bar 32 on the
bottom end of which is disposed the flatner 33. The bar 32 is provided with the
slot 34 through which passes the pin 35 to the slide 11 carrying the punch 12,
being mounted at the top end in the guide 36. After the slide 11 has performed a
portion of its downward travel the pin 35 comes in contact with the bottom end of
the slot 34 and presses the bar 32 downwards with the flatner 33 onto the nut
while being held between the indenters. When the punch 12 has completed its
downward stroke and the newly formed nut is held by the flatner 33 on the die or
cup 10, the cams 4-by their revolving action-release the slides 5, which recede by
the cams 4 striking the levers 37 mounted on the centres 38 to which are fixed the
levers 39, the latter operating on the pins 40 secured to the slides 5, by which the
indenters are placed ready for the next operation as the cams revolve. To prevent
the indenters and slides receding too far the pins 41-employed for securing the
indenters to the slides-extend outwardly and into the slots 42 in the movable
caps 8.
Immediately the upward stroke of the slide 11 and punch 12 takes place the
flatner 33 is released from the top of the newly formed nut and lifted by the
spring 43 fixed in the spring box 44, after which the nut is removed and
the machine is ready. for forging another nut.
The outside or frontside of the indenters are bevelled to correspond with the
V die 7 so that the end of the heated bar-from which the last nut was formed-
will fit into the V die and form two sides of the nut.
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
The construction, combination, and arrangement of parts forming the improved
machine for forging untapped nuts, substantially as described and illustrated.
EDMUND CHADWICK,
Agent for Applicaut.