Year: 1885

page_text: [Communicated from abroad by Franklin Averill Gleason, a resident of Brooklyn,
in the County of Kings and State of New York (Mechanic), and Fernando
Cotrez Gleason, a resident of the City of New York, in the State of New York,
(Jeweller), both in the United States of America.]
க
I, ALEXANDER MELVILLE CLARK, of the firm of A. M. and Wm. Clark, of
53, Chancery Lane, in the County of Middlesex, Fellow of the Institute of Patent
Agents, do hereby declare the nature of this. Invention (a communication to me
from abroad by Franklin Averill Gleason, a resident of Brooklyn in the County of
Kings, and State of New York (Mechanic) and Fernando Cortez Gleason, a resident
of the City of New York in the State of New York (Jeweller) both in the
United States of America) 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 certain improvements in nail machines.
The object of the invention is, first, to so arrange the machine, that if parts
thereof should become clogged by scraps of iron or other obstructions the continued
operation of the machine will not cause it to become wrenched out of shape or
broken. Another object is to insure a certain connection between the Dipper slide
and the wheel, which, when turned by the action of the nipper slide will affect the
position of the clutch and the movements of the vibrator.
Another object is to impart to the headers a rectilinear instead of a curvilinear
motion.
The invention consists, first in a new construction of clutch, the same having a
pivoted pawl, which is hung in a spring ring forming part of the clutch, as herein-
after described. By this arrangement the clutch can be made inoperative without
breaking any parts, if the machine is clogged by obstructions.
Secondly, the invention consists in connecting the eccentric on the longitudinal
shaft of the machine by a yielding connection with the elbow to which it is joined,
so that if parts of the machine should be obstructed this yielding connection will
prevent breakage.
Thirdly, the invention consists in combining with the nipper slide a certain
lever by which the ratchet wheel is caused to be turned, which lever insures a
definite connection between the nipper slide and the ratchet wheel moving devices.
The fourth part of the invention consists in combining one or more horizontally
sliding headers with vibrating heading levers and other devices hereinafter
described, whereby the headers will receive a rectilinear instead of the curvilinear
motion heretofore used in such machines.
In the accompanying drawings Figure 1 is a plan or top
nail machine. Figure 2 is a side elevation of the same.
view of the improved
Figures 3 and 4 are

page_text: detail views hereinafter more fully referred to. Figure 5 is a top view of the
mechanism for heading the nails. Figure 6 is a vertical cross section of the
machine on the line c, c, figure 5. Figure 7 is a detail cross section of the eccentric
and its connections on the longitudinal shaft of the machine Figure 8 is a top
view, on an enlarged scale of the clutch on said longitudinal shaft. Figure 9 is a
transverse section, on the line k, k, figure 8, and figure 9* a face view of one of the
clutch discs. Figure 10 is a top view of part of the nipper slide and its connections.
Figure 11 is a side view of the same, and figure 12 a detail cross-section, on the
line c k figure 11.
I will first describe the clutch mechanism which constitutes the first part of this
invention.
In the drawing the letter A represents the longitudinal shaft of the machine.
This shaft A carries the clutch C, that is moved against the pinion d by means of
the lever j, whenever said lever is moved by the elbow 4, the said elbow being
moved at proper intervals by the ratchet wheel 1, 2, 3. The clutch C is of peculiar
construction, that is to say, the body of the clutch is made of two ring-shaped
parts a and b, (see figure 8) which two rings are united by a spring f, which spring
is firmly fastened to the part b, and bears against a hook g on the part a In the
part a is pivoted the catch or pawl h, which constitutes the engaging projection of
the clutch for taking hold of the hook that projects from the loose pinion d.
Whenever the parts operate normally, the clutch, being pressed by means of the
lever or carrier j against the loose pinion d, its pawl h will, engaging with the
projection 1, cause the pinion d to be revolved, and this pinion will then actuate
the plate carriers. But if the plate carriers should be obstructed by some plate
being out of position, or by a scrap of iron, or otherwise, so that the pinion d
cannot possibly be revolved, the parts of the machine will nevertheless be broken,
because in that case the spring f will allow the pawl h to be pressed into the recess
of the ring a, within which said pawl is pivoted, causing the tail of the pawl to
clear the projection m, against which normally it finds its support so that now
when the pawl has cleared such projection it will become free to enter into the
recess, and to be carried out of the way of the projection thus preventing the
pinion being turned.
In other words, the clutch being made in two parts, which are united with
sufficient rigidity by the spring f, but yet permitted to turn in one another, the
pawl, which is pivoted in one of these parts a, and held stiff by the projection m
of the other part, normally, will, when the pinion is definitely obstructed, lose its
support m and enter the recess in the ring a, so as to prevent the clutch biting the
pinion.
The part b of the clutch C has on the side which is farthest away from the part a
a projecting tongue c, which enters a recess in a collar e, which collar, by a suitable
set screw, is fastened to the shaft A. The tongue c is sufficiently long to leave the
clutch C at all times in engagement with the collar e, so that by means of said
collar said clutch will always be revolved with the shaft. This arrangement is
used in lieu of the feather on the shaft, which is impracticable where the clutch is
made of the two rings b a.
It is evident that instead of having the tongue c on the ring b, it may as well be
made to project from the collar e into a recess of the ring b.
I will now describe the second part of this invention, which refers to the
connection of the eccentric k on the shaft A with the elbow lever . This elbow
lever i connects by the rod with the eccentric k. The object of said elbow lever
and of its connections by the rod i with the vibrator B is to move said vibrator.
The rod or strap is made self-adjusting. It is more fully shown in figure 7 of
the accompanying drawinga. From this figure it will appear that the strap
or rod is made in two sections, an upper section 15, which is rigidly attached
to the strap which embraces the eccentric k, and a lower section 16, which is
pivotally connected with the elbow . To the section 15 is attached a box 17,
into which the section 16 enters, and which box contains a spring 18 that bears

page_text: at each end against shoulders within the box and also at each end against collars 19,
that are formed on the section 16, so that whether the strain or obstruction on the
vibrator B may tend to shorten the connection between the elbow and the
eccentrick or to lengthen it, in either case the spring 18 will be compressed and
will allow the parts to yield to the obstruction. Hence, if by a scrap of iron or
other obstruction the vibrator should become clogged, so that it cannot get its full
stroke, the connections between the vibrator and the eccentric k would not be
wrenched out of shape, nor would the vibrator itself be injured by such an
obstruction.
I will now describe the third feature of the present invention, which relates to
improvement in mechanism for turning the ratchet wheel 1, 2, 3. In the present
construction I use a lever X, which is pivoted by a pin a² to one side of the
vibrator B, and which lever on the outer side of the vibrator carries rigidly
attached to its pivot pin an arm 6' having an an outwardly projecting tooth c
(see figures 10, 11 and 12) This tooth enters a fork d³, which is attached to a
lever Y, that is pivoted to the framing of the machine, said lever being connected
to the pusher bar 12, which is to move the ratchet wheel 1, 2, 3.
The lever X which is pivoted as described to the side of the vibrator, and the
form of which is indicated by dotted lines in figure 11, has a shorter arm e³ in front
and a longer arm f³ at the back. Whenever the nipper slide H moves backwards
to get a new plate, or for any other purpose, it brings a cam g³ which it carries
under the longer arm f³ of the lever ✗, and lifting the same tilts the projection 6.
and tooth c³, so as to move the lever Y in the direction of the arrow 1 in figure 10,
thereby taking the pusher-bar 12 back, off the ratchet wheel, and putting it in
position for imparting motion to said ratchet wheel, which is the position shown in
figure 1. To enable this to be done a lever Z is pivoted at h³ to the nipper slide
and overhangs a pin that projects from the side of the upper nipper jaw n.
Whenever the nippers engage a plate, so that the biting end of the jaw n is lowered,
the pin h³, which is located back of the pivot of the nippers, will be raised, and
being beneath the lever Z, will lift the same, so that, during the forward motion of
the nipper slide and its attachments this lifted lever Z will get under an enlarge-
ment of the arm of the lever X, thereby raising said arm e³ and tilting the
parta b and c, so as to move the lever Y in the direction of the arrow 2 (figure 10),
thereby causing the pusher-bar 12 to turn the ratchet wheel 1, 2, 3, sufficiently far
to cause it to affect the lever o, and thus set the vibrator in motion. The vibrator,
when the nipper slide has reached its lowermost position, which is its extreme front
position, that is to say, when the nail plate has been cut up into nail blanks, causes
the pawl y to turn the ratchet wheel 1, 2, 3, still farther, so as to cause the said
ratchet wheel to set the clutch in engagement with the pinion d, and at the same
time, by acting on the lever o, stop the motion of the vibrator.
I will now proceed to the fourth part of the invention, which has reference to
the motion that is imparted to the headers which cause the nail blanks to be
headed.
Heretofore headers in nail machines have been attached to pivoted arms, that
carry them in such a way as to cause them to join in the curvilinear motion. Such
curvilinear motion however is objectionable in the headers, because it throws the
head of the nail to one side. The object of this part of the invention is to impart
to the header a horizontal rectilinear motion. For this purpose the headers D D
(see figures 5 and 6) which are steel rods of suitable size, are placed in socket
pieces E E, or tubes, which are provided with shoulders p and q (see figure 5) or
analogous projections. Each socket piece E is set between two projecting ribs r r
of the heading lever F. The upper face of this heading lever is rounded, as appears
in figure 6, where it bears against the under side of the socket E..
The driving shaft G (see figure 2) moves the cutter lever I and the pivot J
thereof, that is, the pivot J turns together with the cutter lever I in its appropriate
bearings. This pivot J carries a cam or projection 8 (see figure 4), which engages
under the upper beak of a double hook L, the lower beak of which hook bears

page_text: に
against the under side of the heading lever F (see figure 0) Thus whenever the
pivot Jis turned, so as to lift the projection 8, the heading lever F will be swung
up and inwards on its own pivot, and will thereby move the header which it
carries If this header were rigidly attached to the heading lever F, as has
heretofore been the case, its motion would be the objectionable curvilinear motion,
but by attaching the header to the socket E which rests loosely on the heading
lever, and by at the same time guiding the inner end of the header in a perforated
portion t of the stationary frame M of the machine, the result is that the motion
of the header will be transversely horizontal, and not curvilinear. Each machine
may have only one header, or two headers, two being shown in figure 6. The nail 1
blanks that are being headed are held in suitable dies N.
Figures 3 and 4 show that the upper beak of the double hook L, where it rests
on the cam 8, has a ball projection u, which enters a corresponding ball socket of
the projection 8. This allows of the conjoint use of the parts & and L, so that the
rotary motion of the cam s will not interfere unduly with the upward motion of
the hook L.
Having now particularly described and ascertained the nature of the said
invention, 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 the shaft A with the clutch C and loose
pinion d, the clutch C being constructed of the rings a and b spring f, pivoted
pawl h and supporting projection m, and the pinion d having tooth i, substantially
as described.
2. The clutch C composed of the rings a, b, spring fand pivoted pawl hand which
has the tongue c on the ring 6 in combination with the collar e, having recess to
receive said tongue, substantially as described.
8. The combination of the eccentric k with the rod 15, box 17, having internal
shoulders, rod 16, having collars 19, spring 18. and elbow, substantially as and
for the purpose herein shown and described.
! 4. The combination of the vibrator B with the lever X pivoted thereto, said lever
having arm 62 and tooth c³ and with the lever Y, having forked piece d² nipper
slide H, having cam g³, nipper jaw n, having pin ³, and lever Z, substantially as
and for the purpose herein shown and described.
5. The combination of the pivoted heading lever F with mechanism substantially
as described for swinging it on its pivot, said lever having ribs r and with the
socket E, header D and frame M, having perforated guide portion t substantially as
and for the purpose herein shown and described.
6. The combination of the driving shaft G, cutter lever I and rotary pivot J,
having projection 8, with the double hook L, header lever F, socket E, header D
and perforated frame portion t, substantially as herein shown and described.
7. The combination of the pivot J and its cam 8, having ball socket, with double
hook L, having ball projection u, and with the heading lever F substantially as
herein shown and described.