Improvements in Nail-making Machines.
Year: 1891

page_text: Date of Application, 10th Nov., 1891
Complete Specification Left, 12th Aug., 1892-Accepted, 1st Oct., 1892
PROVISIONAL SPECIFICATION.
Improvements in Nail-making Machines.
1, CHARLES EDWARD HOUGHTON, of the Town of Northumberland, in the
State of Pennsylvania in the United States of America, Machinist, do declare the
nature of my invention for Improvements in Nail Machines for Cutting Points on
Nails from a Rolled Plate, to be as follows:--
My invention relates to and is applicable to the common nail machines for
cutting nails from a rolled plate, and it consists in the adaptation in association
with the gripping-dies of such a machine, of opposing point-cutting dies having
point-cutting grooves or forms whereby the point is made on the nail-blank
while it is held by the gripping-dies; and to effect this point-cutting operation
the point-cutting dies are given a lateral or sidewise movement, whereby the cut
or forming of the point is effected with a direct and also a lateral shear on the
blank.
My invention also includes or embraces a sliding-nipper inserted between the
moving gripping-die and the point-cutting die; and also a discharging piece arranged
between the bed gripping-die and the bed point-cutting die in the knife bed of the
machine.
Dated this 10th dons of November 1801
W. P. THOMPSON & BOULT,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Nail-making Machines.
1, CHARLES E. HOUGHTON, of the Town of Northumberland, in the County
of Northumberland, State of Pennsylvania, United States of America, Manu-
facturer, 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:-
My invention has relation to machines for cutting nails from a rolled plate of
metal; and the object is to simplify and improve nail-machines designed or
intended to make pointed nails from a blank cut from a common rolled plate.
The invention consists in the improved means hereinafter fully described, and
the same is specifically distinguished in the claims hereinbelow made.
I have fully and clearly illustrated my invention in the accompanying drawings,
wherein―
Figure 1 is a plan view of a nail-making machine with the cutting-jaw and
lever removed and other parts partly in section and having my present improve-
ments connected thereto.
Figure 11-2 is a perspective view of a nail-machine, showing the assemblage
of the dies in dotted line, certain parts of the machine being omitted in order
that the parts may be better illustrated.
Fig. 2 is a side view of the nipper-bar and end view of the bed-piece, holder,
or die-case of the moving point-cutting die, the moving gripping-die, and the
sliding nipper assembled or arranged in the bed-piece.
Fig. 3 is a side view of the nipper-bar.
Fig. 4 is a view of the point-cutting die.
n
1413

page_text: Fig. 6 is a bottom view of the moving bed-piece with the gripping-die, the
nipper, and point-cutting die arranged therein.
Fig. 7 is a view of the abutting block at the end of the point-cutting die.
Fig. 8 is a side view of the nipper pushing and lifting bar of the nipper-bar.
Fig. 9 is a side view of the moving bed-piece, holder, or die-case, with the
point-cutting die in position.
Fig. 10 is a bottom view of the stationary bed-piece or die-case with the central
ejector and point-cutting die therein, the spring at the end of the central ejector
and also the gripping-die.
Fig. 11 is a side view of the bed-piece or die-casing, showing the seat for the
gripping-die.
Fig. 12 is a side view of the bed-gripping die, showing the ejector therein.
Fig. 13 is a view of the central ejector, which operates in the bed-gripping die.
Fig. 14 is a detail side view of the bed-gripping die with the ejector removed,
and
Fig. 15 is an end view of the stationary bed-piece with the dies and ejectors
arranged therein.
وو
In Fig. 1 of the drawings I have illustrated the well known "high post nail-
machine and reference being made thereto, A designates the bed or frame of the
machine, B, the driving shaft; C the heading-lever; and D the gripping lever.
These elements are of the usual construction, excepting that the driving-shaft has
an extra cam a, formed thereon, to operate the vertically-moving lifting post of
the push-bar of the nipper-bar, as hereinafter more fully described.
My present invention includes and embraces improvements of this push-bar in
combination with a longitudinally reciprocating nipper-bar for laterally moving
the point-cutting die, as well as having the usual reciprocations for partially
moving the nipper.
In the front of the bed-frame of the machine is formed the usual chamber or
seat for taking the bed-piece, dies, and bed-knife of the machine, and on the
top face of the gripping-lever is formed the usual seat c for the moving die-case
and its contained dies.
In
The means or mechanism for imparting the vertical and horizontal reciproca-
tions to the nipper-bar and correspondingly affecting the nipper are as follows:
On the driving-shaft B is a cam 1, against which the nipper-spring 2 bears.
the spring 2 is fixed an eyebolt 3, in which the push-bar 4 of the nipper-bar is
connected by means of a pin or lug 5, the end of which projects below its bearing.
The free end of the push-bar 4 is extended and rests on the bed of the machine
alongside of the knife-bed, as shown at 6. The nipper-bar 7 is loosely supported
on a pin 8 at its end in a bearing 9, so as to give the requisite play, and has its
inner end connected to the sliding nipper. In the push-bar is notch 10, in which
the nipper-bar engages and is held. On the post of the machine adjacent to the
nipper-spring are keepers 11, in which a post 13 is arranged to have vertical
movement. This post 13 is formed with an arm 14, which bears on the cam a on
the driving-shaft, and operates to lift the post. The post is also provided with an
inwardly projecting arm 15, which engages the projecting end of the lug of the
push-bar under the eye-bolt, as shown, so that when the vertical post is raised the
push-bar is tilted, and the nipper-bar is thereby raised and the nail-blank carried
under the lip of the back-piece.
In my present invention I give the nipper-bar an additional and important
function--that is, I make it longitudinally movable to operate a point-cutting
die on the gripping-lever, and to effect this the construction is as follows: The
rear end of the nipper-bar is formed with an elongated slot 16, in which the pin 8
is projected as a bearing, and on which the nipper-bar has longitudinal movement.
Near the outer or free end of the nipper-bar is a vertical lug 17, made wide
enough to set in a recess in the sliding nipper and extend across a recess 18 in the
die-case or piece and bear with its edge against the inner face of the point-cutting
die and serve to pull that clement outward and give it, shearing movement in the

page_text: operation of cutting the point on the nail. The end 19 of the nipper-bar extends
a short distance beyond the side of the die, as seen in Figs. 11-2 and 2 of the
drawings, and is engaged by the "header" just as it comes up to form the head on
the nail when held between the dies.
E designates the moving bed-die holder or die-case adapted to be secured on a
seat in the gripping-lever. This die-case has formed in one of its sides a
seat 21, in which is arranged the gripping-die. In the under central portion of
the die-case is formed a seat 23 for the sliding nipper and in the other side is a
seat 24 for the point-cutting die 25. The seat 24 is made wider than the point-
cutting die, so that it may have a limited lateral movement in the seat.
end of the die case is formed with a lip, formed by the lower portion being
extended beyond the upper, substantially as shown.
The face
The standing metal or wall 27 of the die-case between the nipper-seat and the
point-cutting die chamber or seat is recessed or cut away, as at 18, for a distance
of its height to permit the lug on the nipper-bar to slide back and forth in its
horizontal reciprocations when moved by the header. The nipper 29 consists of a
bar of steel arranged in the die-case and having an end face to conform with the
contour of the end face of the die-case, and also having its under face formed with
a shoulder 30 and a recess 31 at its rear portion as shown. Across the bottom of
the die-case is secured a stop-piece 32, which permits the nipper to have a
longitudinal movement limited by the recess 31, and to the back of the nipper is
a spring 33, which bears down on the nipper when in its seat and serves to move
the nipper downward when carried outward beyond the shoulder. A transverse
groove or recess 33* is formed in the nipper, in which the lug on the nipper bar
engages. The point-cutting die 25 consists of a steel bar having a point-cutting
groove in its face end and being inade narrower than the seat in the die-case to
give it room for lateral movement therein. The rear end of this die has a dovetail
connection or joint in a short block 34, to have a limited play in the joint and the
forward position of the die is adjusted and fixed by means of an adjusting-screw 35,
substantially as shown.
F designates the stationary bed-piece or die-case having a lip 36, formed across
its end face, arranged at a higher plane than the lip of the moving die-case.
This bed-piece also has a recess or chamber 37, in which is lodged the point-
cutting die 38. This die is narrower than the recess, in order that it may have a
limited lateral movement in its seat in connection with the opposing moving die.
In the under central part of the bed-piece is a groove 39, in which is lodged the
central ejector 40, forced outward by a spring 41, and stayed in its outward
movement by a cross-piece 42 bridging the groove and engaging in a recess 43 in
the ejector.
G designates the bed gripping die. This die is lodged in the recess 44 and is
formed with a score 46 across its face, as shown, and in the side of the die is a
groove extending well back, as shown, and having an opening 47 through the wall
of the groove to take the lug on the end of the auxiliary ejector arranged to have
a limited movement in the groove or seat.
50 designates the auxiliary ejector consisting of a bar fitted in the groove of
the die with a lug 51, arranged in the opening 47 in the die. A spring 52 in the
rear end of the groove of the die forces the auxiliary ejector to stand normally
out with its face flush with the end of the die. This auxiliary ejector serves the
purpose of freeing the nail from the die after the head has been struck thereon,
the blank having a tendency to stick in the score of the die because of the force
of the grip when in the dies. A spring 53 returns the die 38 to its normal or
straight position after being moved out in the operation of cutting the point, and
a spring 54 serves the same purpose in the moving point-cutting die.
The operation of the improved mechanism is as follows:-The nail being cut
from the plate and carried down by the cutting knife (not shown) is engaged by the
nipper, which in its forward and upward movement carries the cut blank against
and up and under the lip of the bed-piece where it is engaged by the moving die

page_text: and held until the header comes up to form the head, which, just before reaching
the head and while the cutting dies are making the point, the header engages the
end of the nipper-bar and pushes that end-wise, sliding it on the slot at its bearing
and moving the point-cutting die, and thus gives the dies a lateral shearing or
pinching movement and cutting and cleaning the point. The nipper is reciprocated
vertically longitudinally by means of the push-bar. After the nipper-bar has been
moved end-wise by the header it is carried back by the die when the spring returns
it to its nornal position.
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 a nail machine, the combination of a moving point-cutting die having a
lateral movement in its seat, a nipper-bar provided with a lug to engage the point-
cutting dic, and means, substantially as described, to engage the bar and move the
lug, whereby the point-cutting die is moved laterally outward, substantially as
specified.
a
2. In a nail-machine the combination of a point-cutting die arranged in its seat
to have a lateral movement therein, a longitudinally-movable nipper-bar having
lug to engage the point-cutting die, and the header to engage the end of the
nipper-bar and move it longitudinally substantially as and for the purposes
specified.
3. In a nail-machine the combination of a point-cutting die adapted to have a
lateral movement in its seat, a nipper-bar supported on a slotted bearing and
having a lug to engage the point-cutting die, and the heading lever provided with
a header to engage the end of the nipper-bar, whereby the die is moved outward,
substantially as described.
4. In a nail-machine, the combination of a point-cutting die adapted to have a
limited lateral movement in its seat a sliding nipper arranged adjacent to the point-
cutting die, a nipper-bar having a vertical horizontal and longitudinal movement to
engage the nipper and the point cutting die, mechanism to lift the nipper-bar
vertically and swing it horizontally, and means to move it longitudinally, sub-
stantially as and for the purposes specified.
5. In a nail-machine, the combination with the nipper bar, the nipper spring,
and the sliding nipper, of the push-bar 4 and the vertically reciprocating lifting-
post 13 substantially as and for the purposes specified.
6. The combination, with the nipper push-bar of a nail-machine, of a nipper-
bar 7 loosely supported at its outer end in a bearing, whereby the nipper-bar is
given both horizontal and vertical reciprocations, substantially as described.
7. In a nail-cutting machine, the point-cutting dies arranged in the die seats to
have lateral play therein.
Dated this 12th day of August 1892.
W. P. THOMPSON & BOULT,
Agents for the Applicant.