Improvements in or connected with Nailing Machinery.
Year: 1897

page_text: Date of Application, 12th Oct., 1897-Accepted, 11th Dec., 1897
COMPLETE SPECIFICATION.
Improvements in or connected with Nailing Machinery.
I STILLMAN WILLIAMS ROBINSON of Columbus in the State of Ohio, one of
the United States of America, Teacher, 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:
-
The machine to be herein described employs a metallic nail strip which is
notched at one edge at a nail's length from one end of the nail strip to con-
stitute part of the side of the point and part of the top of the head of a nail,
to be subsequently more fully shaped and cut off from the strip to be driven.
With this first notch made, the strip is fed, its notched edge is again cut
partially away from the top of said first notch to what is to constitute the under-
side of the head of the nail next to be cut and driven from said sirip, and as
this second cut is made, the strip is severed transversely in line with the top
of the previously defined head to remove the finished nail from the strip, leaving
the end of the strip with a notched part for the point of the next nail to be made.
The nail so completed and severed stands within a driver tube or nose from
which it is driven by a suitable driver into the material.
The nail strip is reeled upon a suitable reel or spool, and is acted upon by a
suitable feed wheel, the latter feeding the strip into an orifice of a pointing
quill, said pointing quill also having parallel with it a driver passage..
The pointing quill is supported by a top plate, and a portion of the quill
depending below the top plate is cut away to leave a secant surface, the cut
intersecting the orifice in which the nail strip is fed, so that a portion of the edge
of said nail strip is left exposed at one side of the pointing quill.
Immediately below this top plate the machine has a swing plate provided
with a pointing tool or cutter, which, as the said spring-plate is moved, meets
the exposed edge of the nail strip, and cuts from it a portion to leave a notch,
the notch defining one side of the point of one nail to be made, and the upper
edge or top of the head of another nail, viz:-the next nail to be cut from the
strip and driven.
Directly below the swing plate, is placed a carrier plate provided with a stud,
rectangular in cross section, it entering a cam slot of the swing plate, so that
the said carrier plate derives its motion from the cam of the swing plate, the
stud and slot being so shaped and cooperating together that, when the swing
plate is moved to cause the pointing tool to notch the nail strip, a shoulder of
the cam slot acts against the said stud and swings the carrier plato with it in
the same direction, but for a limited distance, and when the reverse motion of the
swing plate takes place, it starts and has a limited amount of movement in
the left hand end of the cam slot and then a second shoulder of the cam slot meets
the stud, and thereafter the swing plate moves the cam plate with it for a
limited distance, and then drops it while the swing plate returns to its normal
or starting point.
This carrier plate is provided with a grooved block having a driver passage
and at its upper end said block has a lip which overlaps the upper end of an

page_text: auxiliary cutting block mounted on or carried by the nose plate located below
the carrier plate.
The grooved block referred to is attached to an arm pivotted to the carrier
plate, and to provide for altering the effective length of this arm, and cos-
sequently determine to a nicety the position of the driver groove in said block
with relation to the driver passage in the pointing quill, the pin serving as
the pivot of said arm is surrounded with an eccentric which may be turned
when it is desired to effect any nice adjustments of the block.
The nose plate has a suitable nose tube, through which the nail is driven froma
the grooved block.
The machine contains an auxiliary cutting block having a driver passage
and one edge of the block is cut away to leave a shearing edge, against which
the strip is carried, this shearing edge cutting away a part of the same edge of
the strip previously notched, to define one side of the nail from the top of the
point forming notch, to the underside of the head of the nail then to be com-
pleted and severed from the strip to be driven.
When one edge of the strip is being cut away by the shearing edge of the
auxiliary entting block, the carrier plate will be swung with the nail strip
toward the said shearing edge and past the same, putting the strip in the line
of the driver passage of the auxiliary cutting block, and it is this movement
which cuts away a part of the edge of the strip above the notch referred to, tos
form one side of the body of the nail and shape the underside of its head, the
same movement also severing the strip transversely in line with the partially
formed upper end of the head.
The piece so severed from the strip is by a continued movement of the carrier
blork. brought into such position with relation to the driver groove in the
auxiliary cutting block as to enable the driver to descend below the driving
groove in the pointing quill and meet the upper end of the head of the nail and
drive it through the nose fube,
The lip referred to as extended from the upper end of the grooved block
mounted in the carrier plate, overlaps as stated the upper end of the auxiliary
cutting block mounted in the nose plate, and said lip and groove act to so support
a portion of the strip as to leave a head projecting from one side of the nail st
upper end.
its
While the nail strip is being acted upon by the pointing tool to notch the
same, a suitable pressing block acts on the edge of the nail strip and holds it
firmly in the strip guide of the pointing quill.
So also the pointing tool is adjustable upon the swing plate carrying it, and
means are employed to clamp and adjust the said pointing tool on or with
relation to the said plate.
The swing-plate carrying the pointing tool derives its movements from a
lever having a pin on which is kosely mounted a sliding block, said block
having a second hole which is fitted loosely over a stud rising from the swing
plate.
The nail strip is fed by means of a feed roll with which cooperates a pressure
roll and a ratcheted roll, a lever and a link, and a click mounted upon the
pivot of said lever and link, the lever working between stops for controlling
the length of the nail.
Fig 1. in front elevation, shows a sufficient portion of a nailing machine with
my improvements added to enable my invention to be understood;
Fig shows part of the nail strip feeding mechanism;
Fig 3, the adjusting device for determining the length of strip to be fed to
thus make a nail of the desired length;
Fig shows a right hand side elevation of the machine represented in Fig 1:
Tig is a face view of the carrier plate and its grooved block:
Fig 4 is a top or plan view thereof, showing the eccentric for adjusting the
position of said block:

page_text: Fig 4 is a face view of the auxiliary cutting block;
Fig 4 is a plan view of the short link or block C;
Fig shows the top plate detached;
PIVO 01 Said D1OCK
Fig 6 shows the nose plate detached; and in top view;
Fig shows the carrier plate mounted on the nose plate;
Fig 8 shows the same parts with the swing plate in its other extreme position;
Fig 9 shows the swing plate mounted on the carrier plate, the swing plate
occupying its normal position with the pointing quill in its position to be actuated
to nick or chip the strip in the formation of the point;
Fig 10 shows the swing plate in edge view with its attached presser block;
Fig 11 shows said presser block detached in two views;
Fig 12 shows end views and side elevation of the pointing quill;
Fig 12 shows a nail strip nicked, as it will be in practice, before it is cut
off in the formation of a nail.
The framework A of the main head, in practice mounted on
a suitable
column A, has bearings for the main shaft A³, provided with an eccentric A³,
a ratchet wheel A, and a toe cam A to act on a block A, secured to and
adapted to lift the driving bar A provided with a driver A³.
This driver bar, as soon as the toe of the said cam lifts and passes the block Aº,
is quickly thrown down by a spring B, one end of which is connected with a
stud 13 of an arm B fixed on a rod 132, the opposite or free end of the spring
acting on a stud B extended from an arm B loose on said rod 13, the end of
said arm acting on a link or upright B seated on or jointed to the driver bar.
The eccentric A is embraced by an eccentric strap at the upper end of a
lever C, having a hub C, which embraces a pin C, mounted in arms of a
link C, pivotally mounted on a horizontal pin C, fixed in suitable cars pro-
jecting from the head A.
The lower end of the lever C has a pin or stud C on which is fitted loosely
the hub e, see Fig 4, at one end of a short link or block C, the opposite end of
said link having a second hub e bored at right angles to the bore in the hub c,
said hub c embracing and sliding freely on a stud, rising from an ear c³, of a
swing plate C7 to be described.
The link C and the pins or studs with which it is connected form a double
sliding joint, and as the said lever is vibrated on its pivot in the link the
swing plate is moved in a plane parallel to the main shaft A2 by an easy link
motion.
The nail stripa, wound in the form of a roll or coil, is sustained by a suitable
spool a, mounted on the end of an adjustable arm a², secured to the stud B².
The end of the nail strip is led through a suitable guide a and thence between
the face of a feed wheel a and the side of a wheel a, see Fig 1
The pressure of the wheel a toward the feed wheel, to gauge the force with
which the nail strip may be pinched, will be controlled by a spring, acted
upon by a screw a
The feed wheel is mounted loosely on the stud C and has a sleeve hub
provided with a wheel, having teeth which are adapted to be engaged by a
pawl mounted loosely on the pin or stud C, the latter pin or stud in its
imovements with the link C causing said pawl to be moved to turn the feed
wheel.
The extent of the movement of the feed wheel by said pawl may be altered
as desired by turning about the stud C the feed regulating lever b, it having
a pawl controlling shield, on which rides one edge 2 of the pawl, and by
adjusting the position of this shield about said wheel a the pawl in its
movement may engage the teeth of said wheel sooner or later, and so move the
feed wheel for a greater or less distance according to the length of nail desirel
for the work being nailed.

page_text: The lever has a spring pressed pin 3, which by its engagement with the teeth
of a sector locks the said lever in any position in which it may be left.
Extended from the frame is a screw, see Fig 2, on which is an adjustable
stop, and a second one 68, which may be struck by a projection of the
lever b, the position of the said stop on said screw determining the length of
the longest ail to be used, while the stop 48 is to be adjusted for the shortest
nail.
After leaving the feed wheel, the nail strip, of whatever cross-section, is led
into the orifice of the pointing quilt 1, it having also a driver passage
the lower end of said quill below the top plate D', on which it is secured, being
stabbed off, as shown in Fig 12, to leave a secant surface in which may move
the cutting end of the cutting or pointing tool D2, the secant ent in the pointing
quill exposing the edge of the strip through the strip passage.
The top plate is securely attached to the end of the main head of ine
machine by suitable bolts and 7' and extended downwardly from it are two
steel studs, d.
The stud constitutes a fulcrum for the swing plate shown best in
Figs S, 9, and 10, it carrying the cutting or pointing tool D, said tool being
held between a shoulder of the swing plate and a clamping block di pivotted to
the swing plate at , said block being acted upon by a suitable adjusting
device shown as a screw.
The pointing tool is held up to its work by a screw, acting against its rear
end.
This swing plate has attached to it by a suitable screw ", at the front side
of the pointing tool, a presser block ", which acts against one edge of the nail
strip to hold it properly in the strip groove of the said pointing quill preparatory
to and while the cutting tool is acting to cut away a portion of the strip to
leave a notch preparatory to the formation of a nail point.
This swing plate has a cam slot E.
Directly beneath this swing plate is placed a carrier plate F, it turning
freely about the stud d' depending from the top plate.
The carrier plate has extended above it n steel stud P, shown as rectangular
in cross-section, it entering the cam slot E of the swing plate, the said carrier
plate deriving its motion from the cam of the swing plate.
When the swing plate is in its position, see Fig 9, to permit the nail strip
to be fed into the pointing quill, the stud F' stands in the right hand end of
the cam slot.
Now, when the swing plate is moved to cause the pointing tool to notch the
edge of the strip, the shoulder e of the cam slot acts against the said stud and
swings the carrier plate with it in the same direction, but for a limited distance.
When the reverse motion of the swing plate takes place it starts and has a
limited amount of movement in the left hand end of the cam slot, and then
the second shoulder e of the cam slut meets the said stud, and thereafter the
swing plate moves the cam plate with it for a limited distance, and then drops
it while the swing plate returns to its normal or starting point.
This carrier plate is provided with a grooved block see Figs 8 and 4 it
hating a driver passage and at its upper end a lip which overlaps the
upper end of an auxiliary cutting block, mounted on the nose plate G, the
lip enabling the head 9 of the nail to be left and defined,
The grooved block & is in Fig shown as attached by a suitable screw of
to an arm e pivotted to the carrier block at one end by a suitable pin e“, and
to provide for altering the effective length of this arm, and consequently
determine to a nicety the position of the driver passage therein with relation to
the driver passage in the pointing quill above it, the pin is surrounded by
an eccentric f, ser Fig 4", it entering a hole in said arm, and said eccentric may
be turned whenever it is desired to effect any nice adjustments of the block

page_text: This eccentric in this embodiment of this invention is shown as clamped in a
split end of the arm by a clamp screw f¹.
The two studs and also enter holes 2 and in the nose plate G, said
plate being provided at its underside with any usual or suitable nose tube g.
At one side of the nose plate is an upright lug or car g provided with two
threaded holes g (Fig 8) for the reception of two screws g, which are extended
through the flange on the main head frame, see Fig 1, said screws also passing
through the top plate of the working head, and serving as an additional means
to not only connect the top plate at the main head but also the said nose plate
to the top plate.
The auxiliary cutting block e has a driver passage 4 and one edge of the
said block is cut away to leave a shearing edge against which the strip is
carried, it having previously had cut from its edge by the pointing tool 12 a
notch to aid in forming the point shown completed at 6.
Fig 12 shows the nail strip as it will appear when most of the cuts are made,
and said strip has at its lower end a point 6, and above said end it has a
second like notch 7, which, as before said, aids in forming the point of the
second nail.
Now, in this condition of the strip with these two notches, the carrier plate
will be swung in the direction to carry the body of the strip between those two
notches toward the driver passage of the auxiliary cutting block, and in this
movement the nail strip will be cut off in the line, and at the same time
or immediately after, the portion of the strip to make the nail next to be driven
will have cut from its same edge between its own point and the previously
formed point 7 above a space S to thus form the body of the nail and leave
a head 9 for the nail, the severing of the strip transversely completing the point
above it for the succeeding nail.
1
"
The nail thus cut off from the strip is by a further movement of the carrier
block brought into such position with relation to the driver groove 4 in the
auxiliary cutting block e as to enable the driver to meet the upper end or head
of the nail or fastening, drive it out through the nose tube g, the head of the
nail in this further lateral motion of the carrier block and its arm, resting on
and travelling over the upper end of the said auxiliary cutting block.
By providing the auxiliary cutting block with a shearing edge, as described,
which may be of any desired curve or angle, it is possible to so cut into the
edge of the thin metallic strip used as to gradually remove therefrom a portion,
thus materially lessening the force required for removing the chip.
In order to hold the arm up firmly in place during the time that it is
cutting and moving the nail, as stated, I have provided the nose with a bearing
plate, it being held in place by a suitable screw h¹.
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
1. The use in a nailing machine having a pointing quill, provided with a nail
strip passage and a driver passage; of a pivotted swing plate, provided with a
pointing tool and a suitable means to actuate said swing plate, substantially
as described.
2. The use in a nailing machine, having a pointing quill, provided with a
nail strip passage and a driver passage, of a pivoited swing plate provided with a
pointing tool, and a pressing block to act on the nail strip, substantially as
described.
3. The use in a nailing machine having a pointing quill provided with. a
nail strip passage and a driver passage: a pivotted swing plate provided with a
pointing tool; and means to clamp and adjust the said pointing tool on
with relation to said plate, substantially as described.
P
4. The use in a nailing machine, having a fixed pointing quill provided with

page_text: a nail strip passage and a driver passage; of a pivotted swing plate, provided
with a pointing tool, and with a cam slot; and a carrier plate having a stud
entering
substantially as described.
said
cam
slot,
5. The use in a mailing machine, having a pointing quill, provided with a
nail strip passage and a driver passage, and a pivotted swing plate provided
with a pointing tool, said swing plate having a cam slot provided with two
shoulders between its ends, of a carrier plate having a stud entering said cam
slot, whereby said swing plate is enabled to impart intermitting reciprocating
motion to said carrier plate, substantially as described.
6.
A
the nail
face
and
pointing quill having two slots, one for driver and the other for
strip, the lower end of the quill being slabbed off to leave a secant
expose the nail strip groove, substantially as described.
the
7. The use in a nailing machine with a top plate supporting a pointing qu
or block having a nail strip passage and a driver passage, a driver, a swing
plate provided with a pointing tool and having a cam slot, and a carrier plate
located below said swing plate and having a nail carrying block and a stud, of
a nose plate having a nose tube, and means to actuate said swing plate and
said driver, substantially as described.
S. The use in a
machine having a pointing quill provided with a
nail strip passage and a driver passage, a driver, a swing plate provided with a
pointing tool and having a cam slot, a carrier plate located below said swing
plate and having a pivotted arm provided with a grooved nail carrying block
having a lip, and a stud, of a nose plate having a nose tube, and an auxiliary
cutting block notched for the entrance of said lip, said lip serving to form a
head on the nail to be made, as set forth.
nailing
9. The use in a nailing machine, having a pointing quill provided with a nail
strip passage;
a swing plate having a pointing tool cooperating with said
pointing quill to cut from the strip a chip to leave a notch to aid in forming
the point of a mail, a carrying plate, provided with a grooved nail varrying
block having at its upper end a lip. and a combined nail and driver passage,
and a nose plate, of an auxiliary cutting block with which said mail carrying
block cooperates, said auxiliary cutting block having a shearing elge," and
means to actuate said carrier plate and said nail carrying blork to remove from
the nail strip a portion of its edge S above the previously formed point and
have at the upper end of the portion so last cut away a head, substantially as
described.
10. The use in a nailing machine with a carrying plate and an arm provided
with a nail carrying block, of a pin connecting said arm and block and an
recentric located about said pin to, by its adjustment, determine the exact
position of the said nail carrying block on the said carrying plate, substantially
as described.
H. The use with a nose plate provided with an auxiliary cutting block, and
a carrier plate provided with an arm having a nail carrying block, and menus
to actante said carrier plate, of a bearing plate to act on and hold the said
arm and its nail carrying block up firmly to the auxiliary cutting block. sub-
stantially as described.
12. The use in a nailing machine having a pointing quill, means to hold it:
a swing plate provided with a pointing tool: a lever, and a pivotted link carrying
the fulcrum for said lever, of a sliding block loosely connecting one end of
said lever with said swing plate, substantially as described.
18. The use in a nailing machine of the following instrumentalities, eis:-
pointing quill or block having a wire passage and a driver passage and means
for holding it, a driver, a swing plate containing a pointing tool and a cam slot,
a carrier plate having an attached nail carrier piece and a stud working in sail
cam slot, substantially as described.
14. The use in a nailing machine of the following instrumentalities, vis:--a
feeding mechanism to feed a nail strip intermittingly; a pointing quill to receive

page_text: :
the end of the said nail strip; a pointing tool cooperating with said pointing
quill means to move said pointing tool to cut into and remove a portion of
said strip from one edge thereof to leave a notch at a distance from the end of
the strip equal to the length desired for the nail next to be cut from the strip,
an auxiliary cutting block having a driver passage and a shearing edge; a
carrier plate located below the pointing tool and provided with a driver passage
and having a lip to overlap the upper end of said auxiliary cutting block, and
means to move said carrier plate, whereby the notched edge of the strip is
further cut away from the top of said notch upwardly for the length desired for
the shank of said nail being made below its laterally extended head, and the
Eaid strip is at the same time severed transversely above the head of the nail,
leaving it in condition to be driven, substantially as described.
15. The use in a nailing machine, with feeding mechanism to feed a nail
strip, and a plate provided with a pointing quill having a nail strip passage
and a driver passage, of a pivotted swing plate provided with a cutting too!,
and suitable means to actuate said swing plate, substantially as described.
16. The use in a nailing machine with feeding mechanism as described to feel
a nail strip, of a lever operated by an eccentric on the main shaft, and a pivotted
link carrying the fulcrum of said lever, substantially as described.
17. The use in a nailing machine with feeding mechanism consisting of a fed
roll, a pressure roll and a ratchet roll, a lever, a link, and a click mounted upon
the pivot of the said lever and link, as described, of a lever working between
stops for controlling the length of the nail, substantially as described.
Dated the 11th day of October 1897.
WM. BROOKES & SON
55 & 56 Chancery Lane London, Agents for the Applicant.