Improvements in or relating to Nailing Machines.
Year: 1897

page_text: Date of Application, 27th Aug., 1897-Accepted, 18th Dec., 1897
COMPLETE SPECIFICATION.
Improvements in or relating to Nailing Machines.
I, HENRY WARD. MORGAN, of 169 Saratoga Avenue, Rochester, in the County
of Monroe and State of New York, U.S.A., gentleman, do hereby declare the nature
of this invention, and in what manner the same is to be performed, to be particu-
larly described and ascertained in and by the following statement:
My invention has for its object to improve the construction and operation of
nailing machines particularly adapted for nailing the top and bottom upon the
box frame and my present improvements relate to the nail-feeding evices and also
to clutch devices for controlling the operation of the machine, and it consists in
certain improvements in construction and combinations of parts, all as will be
hereinafter fully described and the novel features pointed out in the claims at
the end of this specification.
In the drawings:-
Figure 1 is a front elevation of a machine constructed in accordance with my
invention.
Figure 2, a side view of the same.
Figure 3, a plan view of the nail-feeding devices.
Figure 4, an end view of the upper portion of the machine.
Figure 5, a sectional view of the feeding devices.
Figure 6, a detail view.
Figure 7, a sectional view showing the clutch and its operating means with the
clutch disengaged.
Figure 8, a similar view showing the clutch engaged and the shaft which it
controls operating.
Figures 9 and 10, sectional views showing the operation of the clutch.
Figure 11, a sectional view of the operating-wheel and the sleeve carrying the
clutch, taken on the line rr of Figure 8.
Similar reference-numerals in the several figures indicate similar parts.
1 indicates the main frame of the machine: 2, the box-support or table: 3, tho
nail-chucks; 4. the conduits leading thereto, the reciprocating frame carrying
the drivers 6 and operated by a pitman 9; 7, the nail-pan or receptacle: 8, the
pitman tilting it, connected to a wrist-pin on a wheel 10 or otherwise suitably
operated, the particular construction of these parts forming no part of my present
invention.
The pitman 9, operating the driver-frame, is connected to a suitable crank
formed upon or attached to a shaft 11. journaled in suitable bearings in the main
frame and to which is keyed a sleeve 12, having upon one end an arm 13, and in
the outer surface of the sleeve is arranged a semicircular recess, in which fits a
correspondingly-shaped clutch key or pin 14, adapted when in the position in full
lines in Figure 9 to present a curved surface coinciding with the periphery of the
sleeve. The key 14 is provided at one end with an arm 15, and between said arm
and arm 1 is arranged a spring 16, as shown in dotted lines in Figures 7 to 10,
the tendency of which is to turn the key 14 to the position shown in full lines in
Figure 10, causing the edge of said key to engage with one of a series of notches 17,
T
027

page_text: formed in the interior of a gear 18, which is journaled loosely upon the sleeve, as
shown in Figure 11. The gear-wheel IS is driven constantly by suitable inter-
mediate gearing between it and a suitably-operating shaft 19, which constitutes the
prime mover of the machine. The sleeve 12 is further provided with an exten-
sion 20, to which is pivoted one end of a friction-clutch or brake-lever 21, the
ether end having a stud or roller 22, and between said lever and the sleeve is
arranged a spring 23, operating to force the outer side of the lever into contact with
the overhanging edge of the wheel 18, so that the friction-clutch will operate to
hold the wheel and sleeve together by friction. A suitable shoe or surface 24 may
be arranged on the outer side of the lever, if desired. The tripping device for the
positive clutch consists in the present embodiment, of a horizontally-movable rod
or latch 25, operating in the main frame and actuated in one direction by a treadle
or lever 26 and in the other by a spring 27, operating on a thrust-rod 28, and the
frame is provided with a shoulder 29, with which the projection or roller 22 on
the end of the lever 21 is adapted to cooperate when the arm 15 of the clutch is
engaged by the rod or pin 25, as shown particularly in Figure 7, this projection 29
then operating to hold the friction-clutch lever 21 out of engagement with the
gear 18. It being understood that the gear-wheel 18 is driven continuously in the
direction indicated by the arrow and the latch-bolt 25 being in the position shown
in Figure 7, the clutch-key 14 is held out of engagement with the slots in the
gear, and the lever 21 is out of contact with the wheel, the nailing-machine proper
being then stationary with the frame carrying the drivers in elevated position.
When it is desired to operate the machine, the operator presses upon the foot-
lever 26, withdrawing the latch-bolt 25 and permitting the spring 16 to throw
the key 14 to the position shown in Figure 10, whereupon the recess or slot 17 next
approaching the key will engage the latter and carry the shaft around, operating
the driving and feeding mechanism of the nailing-machine in the usual manner.
As soon as the shaft moves sufficiently to cause the projection 22 on the lever 21 to
leave the projection 29 on the frame, the spring 23 throws the friction-clutch into
engagement with the wheel 18, preventing the independent movement of the driv-
ing-shaft and the wheel and causing them to rotate together, and if desired that
the shaft should make only a single revolution the treadle 26 is immediately
released, and the bolt 25 moving inward will engage the arm 15 and disengage the
rotary key 14 from the shaft, as shown in Figure 7, the projection 22 on the
lever 21 then engaging the projection 29 and releasing the brake from the wheel;
but of course a number of revolutions can be made by continuing the pressure on
the treadle.
This construction of clutch mechanism is particularly adapted for a machine
of this description, inasmuch as the vertically-moving frame carrying the drivers
is to be arrested when elevated and the crank on the shaft is above
the center, because when the crank is thrown off the center and moving
toward the front the weight of the driver-frame is apt to cause a racing of the
shaft faster than the wheel operating it and an irregular operation of the machine;
but it will be seen from the above that as soon as the shaft begins to move and the
end of the clutch-lever leaves the projection 29 the friction-clutch locks. the
wheel 18 and said shaft together and prevents their independent movement until
at the proper time the positive clutch is disengaged by the bolt 25, at which time
the friction-clutch is thrown off by the engagement of the projections 22 and 29.
It is not absolutely essential that a positive clutch embodying the rotary pin 14
be employed in connection with a friction-clutch of this description, as any other
suitable form of clutch could be used, but I prefer this for obvious reasons, though
I do not wish to be confined to it. Nor is it necessary that the positive-clutch
members.c., the wheel and shaft-he arranged-as shown, as the specific form of
these parts is not of the essence of the invention and they could be variously
modified, as could also the form of the friction-clutch.
The nail-receptacle 7 for containing the nails to be fed to the drivers is of the
usual or any preferred construction provided with slots or channels in its bottom,

page_text: from which the nails are delivered into the receiving-ohannels on the upper part
of the main frame, said channels being formed in the present instance by stationary
plates 30 and movable plates 31, the former secured rigidly to the frame in any
suitable manner and the latter connected by brackets 32 with a bar 33, movablo
longitudinally to adjust the width of the channels and in the present construction
having its end bent down and one end guided by a stud or screw 34 and the other
by a stud 35, having an adjustable nut 35 thereon, a spring 37 being interposed
tween the inner side of said end and the main frame, the movement of the bar
and plates 31 in one direction being caused by the spring and in the other by the
nut 35, and by this means the widths of the channels can be readily adjusted so
as to adapt the machine to operate with different-sized nails, the movement of the
single nut being sufficient. Of course a bolt could be used instead of the nut, if
desired.
The plates 30 and 31 are of course inclined, so that the nails will slide down,
then hanging by their heads, as in Figure 5, and the feeding or delivering devices
embody tha rotary elector-disks 38, having slots 39 in their peripheries and
mounted upon studs 40, secured to the main frame. 41 indicates worm-gears
loosely journaled on the studs 40 and having on their upper sides one or more
pins 42 adapted to enter corresponding apertures formed in the under side of the
disks 38, the ends of said projections being preferably beveled and the disks 39
held down upon them by means of springs 43, encircling the studs and arranged
beneath adjustable nuts or collars 44. This forms a frictional connection between
the wheels and disks, and the pins could be dispensed with, if desired, and the
friction between the wheels and disks alone relied upon, but the employment of the
pins enables the disks to be readily set so as to cause their correct relative opera-
tion. The worm-gears 41 are actuated by worms 45 on a shaft 46, journaled in
the frame of the machine, said shaft being provided at its end with a beveled
pinion 47, meshing with a corresponding pinion 48 on a shaft 19, driven by
led gearing 50 from the shaft 11. (Shown particularly in Figures 1 and 2.)
The groting between the sha ft 11 and the worm-shaft 46 is such that at each revolu-
tion of the shaf 11 the selectors will all be rotated a quarter-revolution, canying the
lower-inost nails from the ends of the nail slots or race-ways around and the
sides of the apertures 150 removing them from the disks and depositing them in
the mail-channels leading to the chucks, as usual.
The connection between the selector-disks 38 and their driving-wheels 41 is
such that while under normal conditions the nails will be carried around and
deposited in the chutes or channels leading to the chucks, if a nail should be
caught, say, between the edge of the disk and one of the plates 30 or 31, so that the
operation of any selector-disk is prevented, the springs 43 will yield and permit the
arrested disk to rise vertically on the inclined projections, as in Figure 6, and
come disengaged from the projections on its operating worm-wheel, this frie-
tional engagement with the parts preventing breakage and allowing the other
deelors to perform their functions notwithstanding one or more of them may be
arrested by a defective or misplaced nail. It will also be understood that any of
the selector disks can be adjusted or removed and other disks having differy-
spaced slots or recesses at the edge be substituted, if it is desired to feed nails at
different times or different kinds of nails.
Having now particularly described and a-certained the nature of my said in-
vention, and in what manner the same is to be performed, I declare that what I
claim is:
1. In a nailing-machine, the combination with the nail-feeding devices, of the
stationary plates 30, the movable plates 31, the bar 33 connecting the plates 31
having the downwardly-extending perforated ends, the guide-pin 34 at one end of
the bar, the bolt 35 at the other end, the spring 37 operating to move the bar to
separate the channel-plates, and the nut. 351 engaging the bar opposite the spring,
substantially as described.

page_text: 2. In a nailing-machine, the combination with the driver-frame, the pitman
actuating it, and the shaft to which the pitman is connected, of the driving-wheel
a positive clutch operating one way only, and arranged between the wheel and
shaft, and an automatic friction-clutch, also between the wheel and shaft, substan-
tially as described.
3. In a nailing-machine, the combination with a vertically-movable frame, a
wheel and a shaft to one of which the frame is connected, of a positive clutch
operating one way only and arranged between said wheel and shaft, and an auto-
matic friction clutch or brake connecting said parts when rotating, substantially
as described.
4. In a nailing-machine, the combination with the shaft, the pitman connected
thereto, and the driver-head, of the rotary driving-wheel, having the recesses, the
sleeve on the shaft, the rotary pin having the arm, the spring for operating it, the
movable bolt cooperating with the arm, the friction-clutch between the sleeve and
wheel, and the stationary projection for releasing it, substantially as described.
5. In a mailing-machine, the combination with a work-support, and nail-driving
devices movable with relation thereto, of operating devices for causing their
relative movements embodying an intermittingly-operating driven member, such
as the shaft, a driver member, such as the wheel, a positive driving-clutch arranged
between said members and connecting them for rotation in one direction only,
means for controlling said clutch, and an automatic friction-clutch for connecting
said members only after the positive clutch has become engaged, substantially as
described.
8. In a mailing-machine, the combination with a work-support, and nail-driving
devices movable with relation thereto, of operating devices for causing their
relative movements embodying the rotary driven member, such as the shafi, a
rotary driver member, such as the wheel, a positive driving-clutch between said
members connecting them only when the driver moves faster than the driven
member, an automatic friction clutch or brake between the members, means
operating to connect them only afer the positive clutch has become engaged, and
means for disconnecting the friction-clutch when one of the members is arrested,
substantially as described.
7. In a nailing-machine, the combination with a work-support and nail-driving
devices movable with relation thereto, of operating devices for causing their
relative movements embodying the rotary driver member, as the wheel, the rotary
driven member, as the shaft, the positive driving-clutch, between said members con-
necting them only when the driver moves more rapidly, an automatic friction-
clutch between the members, means operating to connect them only after the
positive clutch has become engaged, a relatively stationary projection for discon-
necting the friction-clutch, and means for operating the driving-clutch, substan-
tially as described.
8. In a nailing-machine, the combination with the work-support and mail-driy-
ing devices movable with relation thereto, of operating devices for causing their
relative movements embodying the rotary wheel, the rotary shaft, the rotary clutch-
pin between the wheel and shaft operating one way only, and means for operating
it, the friction-clutch between the wheel and shaft, the projection for cooperating
with it, and the bolt cooperating with the clutch-pin, substantially as described.
9. In a nailing-machine, the combination with a work-support, and the nail-
driving devices movable relatively thereto, of operating devices for causing their
relative movements embodying the shaft, the wheel thereon and positive clutch
devices between them operating one way only, of the pivoted clutch-arm on the
shaft cooperating with the wheel, the spring actuating the clutch-arm to engage
the wheel, and a relatively stationary projection in the path of the movement of
the clutch-arm, and adapted to engage the latter and hold it out of engagement at
one point in its rotation against the tension of the spring.
10. In a nailing-machine, the combination with a work-support and nail-driving
devices movable relatively thereto, of operating devices for causing their relative

page_text: movements, embodying the shaft, the sleeve thereon, the rotary clutch-pin having
the extended arm, the spring for operating the pin, the friction clutch-arm pivoted
on the sleeve, having the projecting end, the spring for actuating the arm, the
wheel mounted on the sleeve having the interior recesses, and the overhanging
edge, the bolt cooperating with the clutch-pin, and the projecting cooperating
with the friction clutch-arm, substantially as described.
11. In a feeding device for nailing-machines, the combination of a rotary driv-
ing-wheel, a rotary selector-disk thereon having the notched periphery, and the
spring for holding said disk and wheel in frictional connection when feeding
nails, but permitting the arrest of the disk without interfering with the driving-
wheel, substantially as described.
12. In a feeding device for nailing-machines, the combination of a rotary driv-
ing-wheel, the rotary selector-disk thereon, the beveled projections and recesses
between the wheel and disk, and the spring for holding said wheel and disk
together, substantially as described.
13. In a nailing machine, the combination with the worm shaft and a worm
thereon, of the worm-wheel, the selector-disk thereon having notches in its peri-
phery, and the springs for holding the worm-wheels and disks in frictional engage-
ment, substantially as described.
14. In a nailing-machine, the combination with a series of positively-driven
wheels, of a series of selector-disks, one on each wheel and having nail-notches in
their peripheries, and springs for holding the disks and wheels in frictional engage-
ment, substantially as described.
15. In a nailing-machine, the combination with a series of positively driven
wheels, of a series of selector-disks one on each wheel, and having nail-notches in
their peripheries, the beveled projections and recesses between said wheels and
disks, and springs for pressing said wheels and disks together with the projections
and recesses in engagement, substantially as described.
Dated this 27th day of August 1897
BOULT & WADE,
Agents for the Applicant.