IMPROVEMENTS IN MACHINERY FOR ROLLING STRAIGHTENING AND POINTING HORSESHOE NAILS AND OTHER SIMILAR NAILS
Year: 1885

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Pointing Horseshoe Nails, and other similar Nails.
I PETER JENSEN, Fel. Inst. P. A. of 33 Chancery Lane in the County of
Middlesex do hereby declare the nature of said invention for "IMPROVEMENTS IN
MACHINERY FOR ROLLING STRAIGHTENING AND POINTING HORSESHOE NAILS AND
OTHER SIMILAR NAILS" (a communication to me from abroad by Johan Berglund
of Lagerfors, Maholm, Sweden, Civil Engineer) to be as follows:-
The nail or blank is inserted between two horizontal rolls which receive
continuous or intermittent there and back revolving motion. These rolls are
provided with suitable corresponding circumferential recesses for forming the nail
of the required thickness and form One roll has its recess formed about in the
middle of its width or face while the other roll has its recess formed along one edge.
or side of its face where it is also formed with a breast or shoulder. In the space.
between the edge of the roll face and the shoulder a nail straightening bar is
provided which forms part continuation of a tube or passage arranged below the
rolls. The nail head as it comes down from between the rolls is forced against the
inner side of the said bar and is thus straightened. It then drops into the aforesaid
tube or passage and down onto one jaw of a reciprocating and guided pair of tongs,
riding thereon while still held in the tube till by the retreating movement of the
tongs the nail head.drops between that jaw and the other jaw which latter turns
on a pin and by a link or rod can be pressed against the first-named or fixed jaw.
The rod is moved backwards and forwards and thus while first in its backward-
movement opening the jaws pulls the tongs bodily back until the opening between
the jaws comes under and catches the nail head and will in the subsequent forward
movement first close the jaws on the head and then carry the tongs bodily forward.
The fixed jaw part may be a separate piece adjusted and fixed by screws. The
Between the jaws. is
movement of the tongs is also adjustable by set screws.
arranged an adjustable bottom piece for the nail head to rest on.
The link or rod is connected to a lever which receives the required reciprocating
or oscillating motion from a roller on it working in the path of a cam on a revolving
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page_text: shaft. The nail held by its head in the tong jaws is carried forward to a swage
or mould whereby the end of the nail is pointed. Before the tongs are carried
forward to the mould the tube is opened at the right moment. For this purpose
the front side of the tube is made of a movable part which is pushed out by means
of a cam or lug on one of the rolls which cam comes against a projection on the
movable part of the tube. When the nail has passed out of the tube the latter is
immediately closed again by a spring acting on its movable part, and the tube
is then ready to receive another nail.
Improvements in Machinery for Rolling, Straightening, and
Pointing Horse-shoe Nails, and other similar Nails.
גג
I, PETER JENSEN Fel. Inst. P. A. of 33 Chancery Lane in the County of
Middlesex do hereby declare the nature of said invention for "IMPROVEMENTS IN
MACHINERY FOR ROLLING STRAIGHTENING AND POINTING HORSE-SHOE NAILS AND
OTHER SIMILAR NAILS a communication to me from abroad by Johan Berglund
of Lagerfors, Möholm, Sweden, Civil Engineer and in what manner the same is to
be performed to be particularly described and ascertained in and by the following
statement:-
The machine consists mainly of one or more pairs of rolls of peculiar form, of
a nail-straightening appliance, of mechanism for conveying the nail from the rolls
and of mechanism for pointing the nail.
The machine hereinafter described has two pairs of rolls.
On the annexed drawings Figure 1 is a front view of the machine with the doors
removed from the tubes b b¹ and b².
Figure 2 is an end view of the machine with part of the framing cut away in
order to show the cams;o and o¹.
Figure 3 is a vertical section on the line x x Figure 1.
Figures 4 to 10 are detail views:
Like parts are in all the figures indicated by the saine letters.
A is the frame of the machine B is the main shaft running in bearings in the
frame. C is the driving pulley. By means of the toothed wheels D D1 D2 D3 and
the couplings E, the roll-shafts F F are put in motion, so that all receive the saine
speed.

page_text: a a¹ a² and a³ are rolls with circuinferential recesses the rolls a and a² in about
the middle and the rolls a¹ and a³ along one edge or side for extending and shaping
the nails. The roll a³ is shown in end view in Figure 4 and the pair of rolls a² a³
is shown in end view and side view respectively in Figures 6 and 7 together with
the bottom guide tube 62 and door c. b, band bare tubes conducting the rough
nails to and from the rolls. ċ is a door adapted to the lower end of the tube 62,
which door is opened by the cam d (Figure 6) and closed by the helical spring z
shown in Figure 1. The door. c is guided by the screws e and the peg f.
G is a pair of reciprocating. tongs consisting of a long iron bar running between
guides and of a fixed jaw g against which another jaw h moves. These tongs are
shown separately in Figures 8, 9 and 10 in end view, sectional end view and part
sectional side view respectively. By means of the adjusting screw the bolt or
bottom piece k between the jaws may be adjusted as to height whereby the nail
can be brought down more or less between the jaws and the length of the nail thus
to some extent regulated. By means of the adjusting screws and Figure 3 the
motion of the tongs can be regulated, so that their gap places itself alternately
directly beneath the tube band in front of the bottom die m Figures 2 and 3:
•
The tongs and specially also the jaw h receive their motion by the connecting
rod or link H Figures 1, 2, 3, 8 and 10 which is connected to the lever I. This
lever is at the opposite end provided with a friction roller running in a came groove
made in the cam roller K fixed on the main shaft B. The lever I being mounted
on the central pivot n and the friction roller ¹ running in the alternately oblique
groove in the cam roller K the mechanism of the tongs obtains an alternating
motion, when the machine is running.
L is a slide actuated by two cams o and o¹ fixed on the main shaft B. These
cams alternately actuate their respective friction rollers o and o³ fixed on the back
of the slide L. The slidè I receives hereby an alternate motion or the slide may
receive a suitable notion by means of a common eccentric which is connected with
the slide. To the front end of the slide is fixed a die p, adjusted so that it fits the
die-bed m' exactly. The die can be advanced by means of the set screw Z wlien
required.
The roll a³ Figures 4, 6 and 7 in the lower pair of rolls has along one of its edges
a turned recess, and also a shoulder or breast s for the nail shank..
A straightening, bar t Figure 6 forming a prolongation of the tube b² situated
below the rolls works against the parts 18.
(Figure 5) is the removed door appertaining to the top of the tube 62. The
door is suspended on the pins vand is secured by the pivot catch x. If the machine
is provided with more than one pair of rollers as here shown; the connecting tube b¹
between the rollers is covered with a similar door and pivot catches. The feeding
tube b is likewise covered in the same manner.
The machine works in the following manner. The rough nail passing in the
tube b is thus brought down between the rolls a and a¹, whereupon it gets down in
the tube b¹ and between the rollers a² and a³. Owing to the nail head being wider
than the nail shank and to the roller as being formed with the breast r up against
the recess 8 for the nail shank, the nail head will, when descending between the
rolls, partly protrude beyond the inside of the shoulder r or beyond the side of 8
and the protruding part of the head will consequently glide along the upright side t
of the tube 62 situated under the roll a³.
The head being thus forced, on descending, to follow a straight line, the rough
nail will consequently by this arrangement be absolutely straight when leaving
the rolls.
Meanwhile the rough nail falls down, wben rolled, into the tube 62 where it will
remain with the head resting or riding upon the jaw g until the tongs return and
place their gap directly below the tube 63. The rough nail then falls down in the
gap and will stand upon the bottoin piece k. Owing to the advancing motion of
the connecting rod H, the nail will be seized between the jaws and secured. At
the same moment when the link H begins to advance the door c opens by one of
:

page_text: the cams & on the roll a³ coming against the horn formed on the upper end of the
door. Owing to the continued advancing of the link H the tongs holding the nail
by its head eventually advance and the rough nail is thus brought in front of the
die-bed or mould m. The die p then. advancing presses the nail into the die-bed,
from whence it then falls down shaped complete and ready for use.
When the rough nail at the advancing of the tongs has passed the door c, this
latter closes instantaneously by the action of the spring z and the tube b² is again
ready to receive another rough nail from the rolls, which then must wait until the
tongs return.
•
The door c of the tube 62 being thus closed almost the whole time and the tongs
having returned under the tube b, before the chip, striking to the die p, has had
time to be pushed off, the advantage is gained that the gap of the tongs never will
be obstructed by chips falling down therein, and the machine thus works with the
greatest accuracy and security.
Having now particularly described and ascertained the nature of said inven-
tion, and in what manner the same is to be performed I declare that what
I claim as the invention communicated to me is
First. In a nail-rolling machine an appliance for straightening the rough nail
as it comes from the rolls, such appliance consisting of a bar or guide placed against
a shoulder formed at the end of one of the rolls; the nail head gliding past the bar
while the nail shank passes out from between the rolls, substantially as set forth.
i
Second. In a nail rolling machine an appliance for bringing the rough nail after
it has passed between the rolls to a pointing apparatus, the aforesaid appliance
consisting of a pair of tongs which receive a reciprocating or oscillating motion and
which seize the nail and bring it to the pointing mechanism.
Third. The machine for shaping by rolling and for straightening and pointing
nails, consisting mainly of one or more pairs of rolls for forming or shaping the
nail from the blank, of appliances for guiding and straightening the nail, of
reciprocating tongs for conveying the nail to the pointing mechanism, and of a
mould or swage for pointing the nail, substantially as described and shewn on the
drawings.