Improvements in Apparatus for Feeding Nails to Box Nailing Machines.
Year: 1891

page_text: Date of Application, 9th Jan., 1891.
Complete Specification Left, 9th Oct., 1891-Accepted, 5th Dec., 1891
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Feeding Nails to Box Nailing
Machines.
I, JOSEPH MARCH WEBSTER, of 22 Waverley Road, Sefton Park, Liverpool
in the County of Lancaster, Timber Merchant, do hereby declare the nature of
this invention to be as follows :--
This invention relates to improvements in apparatus for feeding nails to box
nailing machines of the kind described in the Specification of a former application
for Letters Patent filed by me dated December 13th A.D. 1889 No. 20034.
In the arrangement of apparatus described in my said former Specification there
is used in combination with the nail chute, or with each of them if more than one
be used, a magnet arranged in proximity to the delivery end of the chute and
carried by a bar adapted to be reciprocated in a direction transverse to the chute
and to the direction in which the work table moves, the arrangement being such
that the magnet can remove nails from the chute, one at a time, and carry them
into the path of, a releaser which disengages them from the magnet and allows them
to fall into a tube and thence to a grooved nail plate.
According to my present invention I cause the magnet, or cach magnet above
mentioned to move to and from the delivery end of its chute in the same
direction as that in which the work table moves, and to pass through the front wall
of nail releaser. By this means I am able to use nails, the form of which is such
as to prevent their use in my former arrangement of apparatus.
The bar carrying the magnet or magnets may be supported by levers moved in
one direction by or from the table and in the opposite direction by a spring or
springs.
With this arrangement I find it necessary to provide near the delivery end of
the nail chute a stop or separator adapted to divide the lowermost nail in the chute
from the one next above it, so as to allow only of the lowermost nail being removed
by the magnet, after which the stop or separator is moved to allow the next nail
to pass and stop the remainder, these actions being repeated during the working of
the apparatus. The stop or separator may be made as a pin that is moved
endways in one direction by a lever operated by the bar carrying the magnet or
magnets, and in the opposite direction by a spring.
Another part of my invention consists in arranging one side of the nail delivery
chute or a part carried thereby in such a manner that it can be moved in a longi-
tudinal direction at each stroke of the table. By this means nails, the shanks of
which directly beneath the head are oval instead of circular and are consequently
too large in the direction of their larger diameter to pass into the opening between
the sides of the chute, can be partly turned until they drop into the opening and
are suspended by their heads. Motion in one direction may be imparted to the
loose side or part of the chute by bringing into contact therewith a pin fixed on the
bar carrying the delivering magnet or magnets, motion in the other direction by a
spring.
To more evenly distribute the nails in the nail receptacle than heretofore, I
provide this receptacle with an agitator which may conveniently be made as curved
arms secured to the shaft of the lower roller over which the chain carrying the
feeding magnets pass.
As will be obvious apparatus constructed as described may be modified to suit

page_text: different classes of box nailing machines without departure from the essential
features of this invention.
1
T
J. M. WEBSTER,
By L. W., per F. B.
Improvements.in Apparatus for Feeding Nails to Box Nailing
Machines.
I, JOSEPH MARCH WEBSTER, of 22 Waverley Road, Sefton Park, Liverpool,
in the County of Lancaster, Timber Merchant, 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:-
This invention relates to improvements in apparatus for feeding nails to box
nailing machines of the kind described in the Specification of former Letters Patent
granted to me dated December 13th A.D. 1889 No. 20034.
In the arrangement of apparatus described in my said former Specification there
is used in combination with the nail chute, or with each of them if more than one
be used, a magnet arranged in proximity to the delivery end of the chute and
carried by a bar adapted to be reciprocated in a direction transverse to the chute
and to the direction in which the work table moves, the arrangement being such
that the magnet can remove nails from the chute one at a time, and carry them into
the path of a releaser which disengages them from the magnet and allows them to
fall into a tube and thence to a grooved nail plate.
According to my present invention I cause the magnet, or each magnet, above
mentioned to move to and from the delivery end of its chute or chutes in the same
direction as that in which the work table moves and to pass through the front wall
of the nail releaser. By this means I am able to use nails, the form of which is
such as to prevent their use in my former arrangement of apparatus.
The bar carrying the magnet or magnets may be supported by levers and slides
moved in one direction by or from the table and in the opposite direction by a
spring or springs.
With this arrangement I find it necessary to provide near the delivery end of
the nail chute a stop or separator adapted to divide the lowermost nail in the chute
from the one next above it, so as to allow only of the lowermost nail being removed
by the magnet, after which the stop or separator is moved to allow the next nail
to pass and stop the remainder, these actions being repeated during the working of
the apparatus. The stop or separator may be made as a pin that is moved endways
in one direction by a lever operated by the bar carrying the magnet or magnets, and
in the opposite direction by a spring.
Another part of my invention consists in arranging one side of the nail delivery
chute or a part carried thereby in such a manner that it can be moved in a longi-
tudinal direction at each stroke of the table. By this means nails the shanks of
which directly beneath the head are oval instead of circular and are consequently
too large in the direction of their larger diameter to pass into the opening between
the sides of the chute, can be partly turned until they drop into the opening and
are suspended by their heads. Motion in one direction may be imparted to the
loose side of part of the chute by bringing into contact therewith a pin fixed on
the bar carrying the delivering magnet or magnets motion in the other direction
being imparted by a spring.
To more evenly distribute the nails in the nail receptacle than heretofore, I
provide this receptacle with an agitator which may conveniently be made as curved
arms secured to the shaft of the lower roller over which the chain carrying the
feeding magnets passes.
As will be obvious apparatus constructed as described may be modified to suit

page_text: different classes of box nailing machines without departure from the essential
features of this invention.
In the accompanying drawings,
Fig. 1 is a side elevation of a box nailing machine provided with nail feeding
apparatus constructed according to my invention.
Fig. 2 is a vertical section of the upper part thereof to a larger scale taken on
line 10, 11 of Fig. 3; and
Fig. 3 is a plan or top view of the parts shown in Fig. 2.
Figs. 4 to 9 are detail views hereinafter referred to.
Similar letters refer to like parts throughout the drawings.
The iron nails to be fed are placed in a trough A and are taken therefrom. by
the travelling feeding magnets B. B and delivered into one or more chutes (
there being three in the machine illustrated.
The arrangements for actuating the feeding magnets B, the work table D, and
the nail drivers E, are the same as previously described in the Specification of my
former Letters Patent hereinbefore referred to.
The delivery magnets F are adjusted and secured to projecting pieces F¹ on the
magnet bar G which is carried in guides formed with the machine side frames H. H.
This bar slides towards and from the lower ends of the nail chutes in the same
direction and simultaneously with the work table D which is provided with side
brackets D carrying vertical pillars D' that engage with the extended ends of
the magnet bar G, and allow it to move positively in one direction i.e. away from
the chute. As the vertical pillars advance towards the chute the magnet bar and
attached magnets are moved in the same direction by tension cords J passing over
pulleys J and provided with weights J2 as shewn in Fig. 1 thus preventing damage
to the machine should the delivery magnets get out of place. Directly in a line
between the delivery magnets and the end of the nail chute is placed a tubular
releaser or extractor K which is connected with the delivery nozzle K by a
flexible tube K². The releaser or extractor K has two openings formed in it for
the pole pieces of the delivery magnet F to pass through; the opening nearer
the chute end being sufficiently large to allow the two poles of the magnet with a
nail attached to pass freely through, whilst the other opening is only of sufficiently
size for the magnet to pass. Thus the nail is caught by the inner walls of the
tube K, drops down the tube and is delivered on to the grooved nail bar K³ ready
to be driven as the table D advances.
The delivery magnets are preferably made in the form of a horse shoe with
the poles closed as shewn, the thickness of the pole ends being somewhat less than
the diameter of the nails, whilst the width across is a little less than the full length
of nail.
The nail chute is formed of two stationary bars C₁ C² shewn to a larger scale in
elevation in Fig. 4 and in plan in Fig. 5. These bars are capable of adjustment.
to suit the size of nails and are secured to the cross bars.H' H* Figs 2 and 4. At
the lower end of the chute bar C' a stop or separator pin L is provided which is
moved in one direction by a curved lever L' pivotted to a projection on the chute
bar Cand in the opposite direction by a spring L2. On the magnet bar Ga
pin G¹ is provided and fixed so that simultaneously with the entrance of the end
of the delivery magnet F into the nail space between the chute bars C¹ C² the
curved lever L' is moved and the separator pin L withdrawn to allow the lowermost
nail to be attracted and caught by the said magnet and as it recedes the separator
pin again projects across the opening and prevents the remaining nails sliding
down.
The fixed chute bar C¹ is provided with a sliding upper piece (³ on which one
side of the nail heads rest and are suspended. This slide C³ projects at the lower
or delivery end of the chute to about the same distance as the before mentioned
curved lever L' and is moved longitudinally of the chute in one direction by the
pin G on the magnet bar G and in the opposite direction by a spring C+ Fig. 4.
In Fig. 5 the slide C³ is shewn in its normal position, and in Figs. 6° and 7 it is

page_text: shewn slid up or towards the chute, Fig. 6 being a side elevation and Fig. 7 being
a plan.
By this sliding motion nails that are oval in section directly beneath the
head and too thick across their larger diameter to slide down the chute are caused
by contact with the bar C³ to turn partly round until they slide freely. Defective
nails that will not enter the space between the chute bars gradually slide down on
the heads of the other ones and drop off the end of the chute into the receptacle A¹
instead of passing again into the trough A. Agitator arms B₁ are provided on the
lower feeding roller shaft B2 for moving the nails towards the magnets as others
are extracted.
Figs. 8 and 9 shew transverse sections of the nail chute and attached parts the
former on the line 12, 13 and the latter on the line 14, 15, Fig. 5.
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 apparatus of the kind herein referred to for feeding nails to a box nailing
machine, a delivery magnet or magnets carried or each carried by a bar arranged
to slide in the longitudinal direction of the machine to and from the delivering end
of the nail chute or chutes, the said magnet, or each of them, if there be more than
one, be arranged to extract the lowermost nail from its corresponding chute, whilst
the remainder of the nails are arrested and to pass through a slotted tubular releaser
into which the extracted nail is delivered on the backward motion of the magnet
substantially as described for the purpose specified.
2. In apparatus of the kind herein referred to for feeding nails to a box nailing
machine providing the lower end of the nail chute with a stop or separator pin
moved simultaneously with the delivery magnet so that at the required times the
passage in the chute through which the nails slide is opened and closed substantially
in the manner and for the purpose hereinbefore described.
3. In apparatus of the kind herein referred to for feeding nails to a box nailing
machine, arranging one side of the nail delivery chute or a part carried thereby
in such a manner that it can be moved in a longitudinal direction at each
stroke of the table substantially in the manner and for the purpose hereinbefore
described.
4. My improved apparatus for feeding iron nails to a box nailing machine con-
structed and operating substantially as described with reference to and illustrated
in the annexed drawings.
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J. M. WEBSTER,
By L. W., per F. B.