Improvements in and relating to Box Nailing Machines.
Year: 1889

page_text: Date of Application, 2nd July, 1889-Accepted, 24th Aug., 1889
COMPLETE SPECIFICATION.
Improvements in and relating to Box Nailing Machines.
T, JEREMIAH CASEY, residing at Edgewater, in the County of Bergen and, State of
New Jersey, one of the United States of America, Manufacturer, do hereby declare
he nature of this invention and in what manner the same is to be performed, to be
articularly described and ascertained in and by the following statement:—
Referring to the accompanying Drawings-
Figure 1, is a front elevation of a box nailing machine, embodying my
vamonta
COMPLETE SPECIFICATION.
Improvements in and relating to Box Nailing Machines.
J, JEREMIAH CASEY, residing at Edgewater, in the County of Bergen and, State of
New Jersey, one of the United States of America, Manufacturer, 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 :-
Referring to the accompanying Drawings-
Figure 1, is a front elevation of a box nailing machine, embodying my
Figure 2, is a side elevation.
Figure 3, is a rear elevation, certain parts being omitted.
Figure 4, is a central vertical section having some of the parts shown in a different
position to that in Figure 1.
Figure 5, is a horizontal section taken on the line a, a, Figure 3, and showing
certain parts.
Figure 6, is a plan view of the nail feed box detached.
'
Figure 7, is a vertical section of the same, taken on the line, y, y, Figure 6.
Figure 8, is a rear elevation partly in section of the same.
Figure 9, is a plan of certain nail feed ways and delivery mechanism.
Figure 10, is a vertical section of the latter taken on the line, 2, 2, Figure 9.
Figure 11, is an enlarged view of a portion of a "picker" bar or feeding device.
Figure 12, is a vertical section of one of the chucks for holding the nails in position
to be acted on by the drivers.
Figure 13, is a rear view of the same.
Figure 14, is a side view of a certain friction clutch and adjacent parts.
Figure 15, is a vertical section of the same and showing a driving pulley in
connection therewith.
Figure 16, is a rear view of a device for straightening crooked hoards capable of
being attached to the machine, and worked automatically.
Figure 17, is a side view of the same, and showing a portion of the frame in
section.
Figure 18, is a top view thereof, also showing a portion of the frame in section.
Similar letters refer to similar parts throughout the several views.
A, designates the frame work here shown as made in sections rigidly secured
together.
B, is a table composed of two sections, B1, B2, the latter supported by rods, b,
secured thereto and passing through lugs formed on the section, B', whereby it may
be drawn out to increase the capacity of the table; b', are bars secured to the
section, B2, and fitted to slide in grooves in the section, B¹, forming a flush surface
therewith.
The table is vertically adjustable by means of the screw, B³, engaging a nut, 62,
secured in a lug, 63. Motion is imparted to the screw by means of a hand-wheel, 64,
secured to a sleeve, 65, loosely mounted to slide on and rotate a rod, 66, having a
bevel-wheel at its extremity engaging a bevel-wheel secured to the screw.
sleeve, and rod, 6, are supported in armis, &, extending downwardly from the
table and are connected by means of a stud, 68, secured to the rod, 66, working in
slot, 8, in the sleeve.
The
The surface of the table contains rectangular openings, 610, shown in Figure 5,
through which nails may fall and be received in drawers, 6", sliding on cleats
beneath the table.
, is a rib cast on the front of the table and fitted to slide in a groove, a, in the
frame, by which the said table is guided and held in a horizontal position.

page_text: 13, is a bar secured to the rib, 612, and extending on each side of the groove, a, to
hear against the inner side of the frame and thereby hold the table firmly against
the front surface of the same.
C, are nail chucks and are each provided with an extension, c, adapted to fit and
slide between rails, D, D', and are secured thereto at any desired distance apart by
pins, e, loosely inserted in any of a series of holes, d, in the rail, D, and passed
through a corresponding hole in the extension, c.
The rails, D, D¹, are secured to end plates, D², fitted to slide a short distance
vertically in ways formed in the frame, A, for the purpose of bringing the chucks
down close on the work and withdrawing the same therefrom after the nails have
been inserted.
The downward motion of the rails is limited by stops a¹, while the upward motion
of the same is limited by the stop-pins, d, projecting therefrom and striking on the
underside of the frame portion, a2, which has a brace, a, secured thereto.
d², are rods extending from the upperside of the slide plates, D2, and provided
with nuts, d³, vertically adjustable thereon and against which certain moving parts
of the machine act to lift the rails as hereafter described; d, is a bar secured to the
rails, D, D', to serve as a brace.
c, are cylindrical jaws sliding in openings extending through the body of the
chuck and meeting at the center of the bore, e. at which point a curved recess, (1,
is formed in their upperside to receive and direct the nails centrally through
openings, c³.
The openings, e, through the upper pair of jaws is sufficiently large to allow the
largest size nails used to fall through, while that of the lower pair of jaws is smaller
in diameter than the diameter of the nail which therefore rests thereon, as shown in
Figure 12.
When short nails are used, and of a diameter smaller than the opening, co, through
the bottom pair of jaws, they will be suspended by their heads in the curved recess
in the upper pair of jaws, and their points will rest on the bottom of the recess in
the lower jaws similar to that shown in Figure 12.
The jaws, e, are maintained in a central position by means of springs, co, inserted
in sockets and bearing against curved plates, c.
c8, are pins projecting on one side of the jaws and fitted to slide in grooves, c, in
the chuck. They serve to limit the inward motion of the jaws to a central position
and prevent any rotary motion thereof.
clo, is a portion of a conveying tube capable of rocking on a pin, c", attached to
a spring, c¹², secured to the chuck and passing through an opening in an extension, c¹³,
of the conveyor, inserted between the chuck and a plate, c14, secured to the
latter.
c, is a shoulder concentric with the center of the pin, c", and upon which is
fitted a corresponding shoulder of the conveyor, by which means a smooth surface
is obtained at the joint of the two parts when the conveyor is rocked.
By drawing out the free end of the spring, c¹, the pin, c1, is withdrawn from the
extension, c¹³, and the conveyor may therefore be detached when required, from
the chuck.
E, are the drivers having head portions, e carried in T-shaped grooves formed in
the bottom of a bar, E, and along which they may be moved to correspond with
the position of the chucks, C. At about the center of the bar, E', the lower portion
of the groove is enlarged to admit of the insertion and withdrawal of the heads of
the drivers.
The ends of the bar, E', are secured to end plates, E², fitted to slide in the grooves
of the frame portion, a², and against the end plates, D2, of the rails, D, D'.
el, el, are lugs formed on the plates, E2, E2, and through which pass loosely the
rods, d², d².
ee, are lugs projecting from the plates, E2, E2, and to which are secured
rods, e, e, connected to a cross-head, F, the latter being guided by a rod,, working
in bearings, f¹, ƒ¹.

page_text: F¹, is a connecting rod pivoted to the cross head, F, and reciprocated by a
crank, F³, deriving motion from the driving pulley, G. At each rotation of the
crank, the drivers, E, are forced down through the chuck onto the work driving the
nails therein. The jaws, c², are forced apart by the nail heads acting on the concave
sides of the recesses, c, during the passage of the drivers. As the end plates, E³,
are raised after each operation of the drivers, the lugs, el, e¹, come in contact when
near their upper position with the nuts, d³, thereby lifting the rails, D, D', and chucks
from the work to facilitate the removal and insertion of the latter. The pins, d¹,
prevent additional upward motion to the latter parts that may ensue from the impetus
imparted thereto by the lugs, el.
H, is a nail feed box adapted to rock on pivots, a³, a³, which have a screw-threaded
connection with lugs, a', formed on the frame, A.
This box is rocked by means of the crank, I, secured to a shaft, i, deriving motion
from the main shaft, G₁, through the gear wheels, 1, 2, 3, and, . The motion of
the crank is transmitted to the box through the connecting bars, ², and rock-
levers, h2, h3, pivoted to the frame.
The lever, 2, has an arm, h, to which a rod is connected having a weight, h,
suspended thereto by which the weight of the box and its contents is approximately
counter-balanced. Additional weights, h; may be added when necessary and for
which purpose a stud, ', is provided.
The gear wheels are so proportioned in diameter that the crank, I, makes but
one quarter revolution to one revolution of the crank, F2, so that the box, H, which
is shown tilted to its highest position in Figure 4, will be brought to a position, h³,
indicated by dotted outlines after the first downward and upward motion of the
drivers. At the next motion of the drivers the box will be brought to its lowermost
position, h, also shown lotted. By this movement of the box the nails are caused
to roll to and fro within the same, and arrange themselves in grooves contained
therein.
The box, H, is composed of four side portions, h, rigidly secured together, and a
bottom portion constructed in sections, each section having a pair of downwardly
extending arms on its underside.
Some of these sections are stationary, while others are horizontally adjustable to
forin a series of grooves, ', having a width corresponding to the diameter of the
nails to be used, and in which grooves the nails are caused to arrange themselves,
and be suspended by their head portions within the box.
The two side portions, h2, 2, of the bottom may be cast integral with the sides of
the box; ³, are intermediate stationary sections having their arms, h, h*, secured to
the bars, , whose ends are secured to the arins, he, beneath the two outside portions
of the box, by which means these sections are supported and held stationary. The
sections, ', h, have their arms, 8, rigidly secured to bars, h³, while the sections, h¹º,
have their arms, h", similarly secured to bars, h¹².
The bars, 1, 12, attached to the arms of the movable sections are supported on
pins, h, projecting on both sides of two of the arms, h, of the stationary sections
and passing through slotted openings in the bars, ho, h2, by which motion sidewise
thereof is afforded to form the grooves, h¹, of more or less extent in width.
Each pair of movable sections bas a lap joint, h¹, where they meet, having a
rounded and smooth finish on their upper surface to allow nails to slide freely
over them.
The side edges of these movable sections are adjusted to and from the edges of the
stationary sections to form grooves by means of levers, 16, secured to a shaft 16,
journaled in the arms, h, of the stationary sections and one of which levers is provided
with a handle, h; h, 7, are pins projecting from the lever and extending through
slotted openings in the arms, /, into bars, h, rigidly secured to the levers, h³,
having a slotted opening to admit of the shaft, 1, passing through the same.
and
On turning the handle in one direction the bars, h³, h, are reciprocated in
opposite directions causing all the grooves to be enlarged simultaneously, while the
reverse motion of the handle will diminish their width of opening.

page_text: :
In order to regulate this degree of opening I provide a stop, 20, secured to the
arm,, and between which and the side of the lever, 41, a nail of the diameter to
be used is inserted, as shown dotted, in Figure 7. 21, is a spring having one end
attached to the handle, 1, and the other end to the pin, 13, and serves to hold the
nail in place and consequently a uniform width of grooves is maintained.
The surface of the sections is curved both longitudinally and transversely in
order to scatter the nails and cause them to fall in the grooves when the box is
rocked.
h22, 22, are openings in the rear side of the box and through which the latter
may be emptied when tilted.
h23, 23, are covers for the openings, 22, sliding in grooves, and provided with
finger pieces having their extensions to enter notches in the side of the box whereby
the said covers are supported.
24 are grooves for receiving partitions, 72, when it is desired to use nails of
different sizes simultaneously, and therefore required to be kept separated in
the box.
126, are stops to prevent the nails suspended in the front portion of the grooves
from sliding backwardly therein when the box is rocked downwardly.
L, is a device for clearing the front portion of the grooves of nails which may
have assumed a position tending to clog the passage of nails through the orifices, h
in the front of the box. It consists of a bar, l, pivoted to the sides of the box and
having arms, 1, concave on their underside and arranged to cover the grooves, h¹
at a sufficient distance above the same to allow of the free passage of the nail
heads.
Should nails enter this concave opening above the grooves irregularly, such as end
foremost, the exit from the box clogged, and to remedy this the arms, , are
adapted to rock a short distance upwardly; when the box has nearly reached its
lowermost position, and then return to its normal position immediately after the box
has commenced to ascend. It is operated by means of an arm, 12, on the bar, l,
extending through the front of the box, and upwardly in front of the same. The
latter portion contains a cam surface, 13, between which, and the front of the box is
a pin,, extending from an arm 15, pivoted to the frame work at 1º.
As the box approaches its lowermost position the pin, l', comes in contact with
the cam surface, ³, causing the arm, 12, to be forced outwardly and thereby rotating
the bar and consequently raising the arms, l, and releasing all nails that may have
gotten in irregularly. 1, is a spring serving to restore the arms, 1, to their lower
position during the commencement of the upward motion of the nail box.
27, are stop pieces pivoted to swing over the orifices, 128, to prevent the feed of
nails from any one or more grooves, h¹, when not required. The two outside orifices
in Figure 1, are thus shown closed.
K, denotes mechanism for delivering the nails after passing from the feed box,
to a "pick bar, M, which picks a set of nails therefrom each time the drivers
ascend.
"
This mechanisin consists of a series of bars some of which are stationary, while
others are movable in order to forin grooves corresponding in width to those in the
nail box for the passage-of nails of the required diameter.
, are the stationary bars secured to the frame, A, which has upwardly
extending posts, a, between which the nails slide. These posts have their top
surface inclined sufficiently to allow the heads of the nails resting on the plates
forming the grooves to slide down the same by gravity. The plates, k², are rigidly
secured to a cross-har, 48, while the plates, k, are secured to a cross-bar, k³, both of
which bars are fitted to slide in keepers, 4, secured to the posts, a.
k, is a lever pivoted to the frame and connected by pins to the bars, k³, k³, whereby
motion imparted to the bar, k³, will cause the har, k³, to move in an opposite
direction.
By this means the width of all of the grooves may be enlarged simultaneously,.or
simultaneously diminished, as desired.

page_text: k, is an adjusting screw having a neck portion working in a bearing, ³, so as to
prevent longitudinal movement of the same and is screw-threaded into the bar, k³.
10, is a stop abutting against the end of the bar, 5, and screw-threaded into the
bearing, k¹¹
.
12, is a lug on the bar, ³, to serve as a gauge to obtain the proper width of
opening in the grooves or nail slides and between which lug and the keeper, kº, a.
nail, n, is placed of the required diameter.
The screws, k³, 10, will then prevent any accidental displacement of the plates.
The "picker" bar, M, is supported in guides, m, secured to the frame and is caused
to slide a short distance crosswise of the machine by means of a wedge shape
cam, m³, secured to one of the end plates, E2, and acting on a roller, m², attached
to the picker bar, M. The motion of the latter in a. reverse direction is caused by a
spring, m³, surrounding a fixed rod, m², and bearing on a cross-bar, m³, having one
end resting against the frame, and its other end against the picker bar, M. The
rod, m³, is provided with nuts, whereby the tension of the springs may be varied.
The picker bar, M, is made in two sections, m, m2, a part of which is shown, on
an enlarged scale, in Figure 11. The section, m, extends the entire length of the
device, and has the anti-friction roller, m¹², journaled to it at one end, and the bar, m³,
bearing against it, at its other end; m³, are openings opposite the nail slides for the
passage of nails.
m³, are angular plates detachably secured to the upper surface of this section in
order that they may be renewed when necessary.
The top section, m², is preferably made in two parts m10, m¹¹, in order that nails
of two different diameters may he used simultaneously, if desired. These two
portions of the section, m³, are loosely connected to the bottom section by pins, m12,
fitting slots, arranged at such an angle that when the said portions are drawn forward
parallel, and angular grooves, m¹³, are formed through which the nails are forced
and allowed to drop through openings, m³, into suitable receptacles beneath the
bottom section. The side edges of the two sections normally coincide and are held
in this position by springs, m4, attached to the parts, m10, m, and having their ends
secured to the frame. In order to set the picker bar for use, the upper section is
drawn forward, and nails of the diameter to be used inserted at, ms, causing the
pointed end of the plates, m³, to project beyond the adjacent side of the said upper
section. Nails may therefore slide against the latter, as shown at, ml, Figure 9, and
on the crosswise notion of the bar, M, will be carried to the opening, m³, while
the edge, m17, acts as a stop to the advance of other nails, as shown in Figure 11,
which also shows in dotted out-line the position of the plates, k¹, k², and nails, n.
By this yielding action of the upper section, nails in any practical groove that
may vary a trifle in diameter or form, may be conveyed by the picker bar to the chucks
without injury to the parts or affecting the feed of nails in the other nail slides or arms.
When nails of two different diameters are to be used simultaneously, one part of
the upper section is set by two nails of the same size, and the other part by two
nails of the other size.
n', n', are arc-shape plates rigidly secured to the lower section, m², opposite each
nail slide, and afford a support and guide for the tubes, n³, having funnel shape
opening to receive nails from the picker bar as they fall through the openings, m³.
These tubes have a sliding connection with other tubes, n³, secured to the base
portion, c10.
n', are studs secured to the front side of the funnels and passing loosely through the
plates, n', in which they are secured by a split or other pin.
By this arrangement the tubes may be swung sidewise to correspond with the
position of their respective chucks.
P, is a device applied to operate on each nail slide independently, for stopping
the feed of nails from any number of them at regular intervals during the strokes of
the drivers, and is used chiefly when nailing the bottom pieces of a box to the side
and end pieces.
It is essential to provide means to vary the number of nails used at each stroke: of

page_text: the drivers for the reason that more nails are required to secure the bottom piece
to the end portions, than to the side portions of a box. The former may require
eight nails, while four will suffice for the sides. It is also essential to provide
means whereby the bottom piece may be either nailed to both end pieces first, and
afterwards to the two side pieces, or to an end piece first, and then to a side piece
alternately. It may be done either way by the following described cams acting in
conjunction with the device, P.
The device, P, consists of a bar, p, mounted to rock in bearings, a10, attached to
the frame and having arms, pl, secured thereto, and extending upwardly opposite
each nail slide. The arms, pl, are provided with ordinary spring barrels at their
upper extremities. p², are rods pointed at their tips to enter the grooves of the
nail slides in front of the nails and prevent them from descending when otherwise
free to do so by the picker bar.
These rods pass centrally through the spring barrels and have pins extending
through a slot in the same, which slot has a shoulder at both ends, whereby, on
turning the rod, p², slightly, its head portion, that is to say the pin, will engage with
a shoulder and be locked in position to either stop the feed of nails or not affect the
same when rocked towards them.
By disengaging the pin from the foremost shoulder in any one or
more of the
spring barrels, the rod, p², is forced rearwardly towards the nail slides by the spring
within the barrel, and stop the feed of the nails when the device is rocked.
The bar, p, is rocked by a cam, p³, secured to the shaft, i, and acting on a roller, p³,
connected to a rod p³, pivoted to an arm, p, of the bar, p. The bottom end of the
bar, p, is bifurcated to pass over the shaft i, which acts as a guide for it.
Two forms of cams, p³, p', are here shown forming one piece capable of being
removed from the shaft, and replaced in a reverse direction so that either one of the
cams may be used.
Tho cam, p, has two high and two low faces, each extending around one quarter
the circumference, and their peripheries concentric with the center of the shaft. By
the use of this cam the feed of nails is stopped from any one or more nail slides, at
every alternate stroke of the drivers. The cam, p7, has one high and one low face,
each extending around, ½, the circumference, and by its use the feed of nails is
similarly stopped during two strokes of the drivers in succession and allowed to
feed during two strokes alternately with the former cain, the bottom portion of a box
may be nailed first to a slide and then to an end alternately, while with the cam, p³,
the bottom is nailed to the two sides first, and afterwards to the two ends.
When this automatic action is not required, the device is rendered stationary by
means of a hook, p³.
p3, is an arm mounted to rock on a stud, po, and is acted on by a spring, pl,
against a stop, p, to hold the cams, p³, p', on the shaft and facilitate their reversal
when required.
Q, is a gauge against which the work is placed to be operated on. It is caused to
follow the vertical movement of the chucks in order that portions of boxes of thin
material may not slip over it when the chucks are raised.
It has also a horizontal movement to and from the face of the machine.
The vertical motion to this gauge is caused by the cross-head, F, acting on rods, 9,
working in guides, 9', and having blocks, q, secured thereto. These blocks are
provided with grooves in which loosely slide bars, q³, connected to the gauge, Q.
The latter is free to drop by gravity until the bar rests on the bottom of slots,
in the frame. When the cross-head is near its upper position it acts on the rods, q,
carrying the gauge, Q, upwardly with it. The horizontal movement of this gauge
may be effected automatically or by hand.
In nailing portions of boxes together, each portion being of equal thickness, no
horizontal movement is required, but when the sides of boxes are of thinner material
than the ends, some adjustment is necessary after each stroke of the hammers when
nailing the bottom portions on, in order to centralize the different thicknesses under
the chucks.

page_text: To this effect I provide the following mechanism
2, is a shaft journaled in the frame, A, and provided with arms, 78, which bear
against the ends of the bars, y³. q, is an arm secured to the shaft, q, and has pivotally
connected thereto, a slotted segment, q', provided with a graduated index.
q8, is a rod connected to an arm of the segment and pivotally connected at its
lower extremity to a frame, q', carrying a pair of rollers, 910, either one of which is
capable of being swung in a position to be acted on by cams, q11, 912, similar in
construction to those already described.
When the gauge is required to move in and out horizontally, and alternately with
each stroke of the hammers, the cam, q12, is used, and when the gauge is required to
remain in a forward position during two strokes of the hammer, and back during
two strokes alternately, the cam, q, is used. The change is effected by means of
a handle extending from the frame, q, and which is capable of being swung over
projections in a sector connected to the bar, q³, and thereby held in either position.
913, is a link pivotally connected to the bar, q8, and to a support secured to the
frame, and serves to support the bar, 98.
When this horizontal movement of the gauge, Q, is not required a spring
actuated stop, q, is arranged to enter a recess in the joint pin of the bar, 98, thereby
holding the latter in its uppermost position and therefore free from the action of
the cams.
To set this gauge in order to centralize the thinnest sides of the box under the
chucks, the screw of the segment, q7, is loosened, and the latter rotated until the
pointer on the stationary arin is opposite a mark on the graduated scale corre-
sponding to the thickness of the side pieces of the box. During this time the
roller, gl, will rest on the high part of the cam. The screw is then tightened and .
the gauge will be advanced to the proper position each time afterwards automatically
to suit any number of sides of similar thickness.. The ends of the box which are
usually thicker than the sides may be centralized under the chuck by another gauge
hereafter described, or may be effected by the same gange as follows:
r, is a cam secured to a shaft, r, having a handle, , also secured thereto. Tho
shaft, r, is journaled in a slotted segment, 73, secured to the frame, A. The cam, ",
may be rotated and secured in position by means of a screw passing through the slot
in the segment into the handle.
The segment is provided with a graduated scale and the handle has a pointer
whereby the proper position of the cam, to limit the backward movement of the
gauge
ge to correspond with the thickness of the material is readily effected.
'
are springs tending to draw the gauge rearwardly when released by the cams.
is a gauge adapted to be used for boxes having one or both of its ends set in
beyond the side portions. It projects through the face of the machine in two parts
connected at the back.
s, are rollers supporting the rear of the gauge. This gauge is set forward in any
position by means of a crank, s', connected to a shaft, s2, having a slotted segment, s³,
secured thereto. The shaft, s2, is supported in a bracket, st, secured to the frame and
provided with an arm having a pointer in connection with a graduated scale on the
slotted segment. The gauge is secured in position by a screw, s³.
T, is a gauge extending across the machine at a suitable distance above the table
so as to leave a space between its lower edge and the surface of said table and which
may be used in conjunction with either of the above gauges. It is secured to slotted
end pieces, t, working on studs and also on a shaft, t', extending across the machine
and having levers, t, secured thereon provided with pins which enter slotted
openings, t, one of the levers, t2, is provided with an arm having a hand-piece, t*,
attached thereto with a pointed extremity to indicate on a graduated scale the proper
position of the gauge to centralize boards of any thickness."
By the use of this gauge the side pieces of a box may be nailed to the end
pieces in cases where one of the ends is set in, as shown dotted in Figure 4. The
gauges, S, and, T, are shown in line to adjust the position of the end centrally under
the chuck, while the gauge, Q, is set to adjust the distance the side is to project.

page_text: After one side has been nailed it is turned over to have the other side secured, and as
shown, the opening below the gauge, T, allows the projection of the side to pass through.
When nailing the opposite flush end of the box the gauge, Q, is advanced to a
position flush with the other two gauges.
T', is a treadle mounted on bars, t, secured by set screws in sockets, to, the latter
being mounted on a shaft, t', journaled in the frame. The bars, t, rest on flattened
portions of the shaft and impart motion thereto on depressing the treadle. A lever
secured to the shaft and jointed to a post, serves to operate a lever, t³, fulcrumed to
a stationary support.
t, is a spring to balance the weight of the treadle when extended outwardly and
works in conjunction with a spring attached to the lever, t³, to lift the treadle.
V, is a clutch adapted to transmit motion from the driving pulley, G, to the
machine during one complete revolution of the former and then automatically discon-
nect, and allow the driving pulley to become a loose pulley.
It consists of a central portion, v, and an annular plate, v', both secured to the
shaft, G. v, is a sleeve having segmental portions projecting within a recess in the
hub of the pulley, v³, are rollers which on rotating the sleeve are carried up on
the high part of cam surfaces in the portion, v, thus bringing them in contact with
the hub of the wheel, and causing motion to bo transmitted from the pulley to the shaft.
1, is an annular groove extending around the face of the sleeve, and within which
is placed one or more coil-springs, ³, having one end fastened to a pin projecting from
the plate, v', and the other end attached to a pin secured to the sleeve. This spring
tends to rotate the sleeve and carry the rollers up on the high part of the cam.
The sleeve has a projection, v, against which a yielding stop device acts, consisting
of a lever, v, pivoted to a stud, v8, and having a rod, v³, containing a head
portion, o, working in a recess in the lever. A spring, v, tends to press the head
portion against a stop shoulder, 12. 13, is a spring tending to press the stop con-
stantly against the periphery of tho sleeve.
v, is a rod pivoted to the bar, 8, and extending through a slotted opening in the
arm of the stop-lever, . This rod is notched at, vl, to allow a steel plate, vl,
secured to the arm, v', to enter, whereby on depressing the rod, 14, by the treadle
the stop is drawn down out of engagement with the projection of the sleeve. The
latter is then free to turn by the action of the coil-springs, causing the rollers to make
a frictional contact between the pulley and the shaft.
14
17, is a rod projecting from the shaft which on turning will strike on the rod,
and rocking it sufficiently to allow the stop-lever, 7, to disengage therefrom and
bear against the sleeve in order to stop the motion of the latter as soon as the pro-
jection makes contact therewith.
v, is a foot-lever adapted to lock the parts and prevent accidental starting of the
machine.
The spring, v¹³, being connected to the rod, v, serves to draw it towards the clutch.
V', is a device for imparting a backward motion to the machine and consists of a
slide piece,, fitting a recess in the hub of the wheel and having a pin, va,
extending through a slot, 22, and connected by a spring 23, to a support. This
spring tends to keep the slide, 1, from engaging with a recess in a collar, g, secured
to the shaft, G. G², are holes in the pulley for the insertion of a lever to rotate
When it is required to reverse the motion of the machine in order to
rectify any disarrangement of parts, the slide, 1, is inserted in the recess of the
collar and the spring, 23, detached therefrom.
the same.
This clutch affords a useful substitute for power when the latter is not obtainable
since by disconnecting the spring, 23, actuating the stop, v', and inserting a lever in
one of the holes, G³, the machine can be operated by imparting a to and fro motion
to the wheel after the manner of a ratchet drill.
W, is a nail supply box resting on supports, w; w³, are pins projecting from the box
to enter notches in the arms of the support to admit of the box being tilted and emptied.
O, is a device for drawing boards (that may be warped) straight, against the face
of the machine, and adapted to be attached to the machine when required. It

page_text: consists of a bar, o¹, mounted to slide in a groove formed in a carrier-bar, o², and
projecting through slots, a³, in the frame. It is provided with a roller, o15, and
drawn against a cam surface, o, by means of a spring, o14. The bar, o², is pivoted
at, o³, to a bracket, o, secured to the frame and bas at its front end lugs, 06, extending
downward, between which work the upper end of a lever, 06, secured to a shaft, o.
This shaft is rocked in one direction by means of a lover, o, and weight, o³, and in.
the other direction by an arm, oo, extending from the cross-head, F, which engages
a collar, o, on a rod o, pivotally connected to the said lever, 08. 0¹³, is a
sliding in ways formed on the bar, o', and is adjustably connected thereto.
The operation of the device is as follows:
bar
As the cross-head leaves its uppermost position, as shown in Figure 16, it permits
the weight, o³, to rock the carrier-bar, o², on its pivot, causing the bar, o¹, to slide
rearwardly against the cam, o¹6, by reason of the spring, o, thereby causing the
bar, o¹³, to impinge on the bent-out end portions of the boards, and draw the same
flat against the face of the machine àfter which the drivers having descended far
enough to reach the nails in the chucks will drive the latter in the work. As the
cross-head approaches its upper position it will come in contact with the collar, o",
and restore the parts to their normal position, as shown in Figure 16.
Two of these devices are used, one on each side of the machine.
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
1 claim is
1. In a box-nailing machine, the feeding box, or holder, having a series of stationary
and movable bottom sections, and means to adjust said movable sections, substantially
as set forth.
2. In a box-nailing machine, the combination with the chutes and drivers, of the
two sets of chucks of different capacities, substantially as set forth.
3. In a box-nailing machine, the combination of the chucks, the chutes leading to
the chucks, the rails having connection with said chutes, the end plates secured to
said rails, stops to limit the downward movement of the rails, pins carried by one of
said rails, and the supporting frame having a portion against which said pins strike
to limit the upward movement of said rails, the guide rods having stop nuts at their
upper ends, the drivers carried by a cross-bar or head, secured to end plates fitted
to slide in grooves in the frame, and against the end plates of the rails, said end
plates, of the driver, cross-bar, or head, having lugs through which pass said guide-
rods, substantially as set forth.
4. In a box-nailing machine, the combination with the nail feeding box, of the
cleaning device arranged over the nail slots or grooves, which consists of a pivoted
bar having arms concave on the underside, and an arm having a cam surface, a
rocking arm having a pin engaging the cam surface of the latter arm, and a spring
controlling or returning the device to its original position, substantially as set
forth.
5. The combination with the nail feeding box or holder, of the picker-bar
comprising the two main sections or plates, arranged parallel, and one having end-
wise movement upon the other, and a series of interspaced oblique passages which
passages connect with discharged openings below which are applied arc-shaped plates
to which are loosely connected conducting tubes, having a sliding connection with
tubes applied to the upper ends of the chutes discharging into the chucks, substantially
as set forth.
6. In a box-nailing machine, the combination with the nail feeding box, of the
nail delivering contrivance comprising longitudinal parallel bars arranged upon an
inclined base, and in keepers secured to the base, a centrally pivoted lever engaging
pins or projections on said bars, each of said bars having applied at one end a screw,
and one of said bars having a gauge, and movable and stationary parallel cross-bars
or slides, the movable bars or slides being connected to said longitudinal bars, sub-
stantially as set forth.

page_text: 7. The combination with the nail feeding box, of the feed regulating device
having the rocking bar provided with arms secured to, and arranged opposite each
nail of the picker bar spring barrels applied to said arms at their upper extremities,
pointed rods having a pin and slot connection with said spring barrels, and entering
the grooves of the nail slides and mechanism for actuating said feed regulating
device, substantially as set forth.
8. In a box-nailing machine, the combination with the drivers of the horizontally
and vertically movable gauge against which the box or work rests, the cross-head of
the machine, the bars connecting to said gauge, blocks having grooves in which
loosely slide said bars, rods acted upon by said cross-head, and connected to said
blocks and guides in which said rods work, substantially as set forth.
9. In a box-nailing machine, the combination with the work table, of slotted
gauge, T, having slotted end pieces which receives studs projecting from the sides of
the table, and a shaft passing across the machine, said shaft having levers provided
with pins engaging slotted openings in said end pieces, one of said levers having an
arm provided with a band-piece, and pointer to register with a graduated arc on one
side of the table, substantially as set forth.
10. In a box-nailing machine, the combination with the box supporting-frame, of
the table made in two sections, one section sliding in a surface recess or depression
in the stationary section, and having à rod sliding in a sleeve or eye upon the
underside of the stationary section, substantially as set forth.
11. In a box-nailing machine, the combination with the box supporting frame, of
the work table provided with a rib to slide in a groove in said frame, the upright
screw shaft engaging a nut supported in a bracket of the frame, and having its
upper end bearing in the underside of the table, the slotted hand-wheel sleeve and
the shaft or rod geared to the aforesaid shaft, and having a projection or stud
engaging the slot of said sleeve, substantially as set forth.
12. In a box-nailing machine, the combination with the driving pulley or wheel,
and the shaft bearing the latter, of the clutch mechanism, and its sliding treadle said
clutch mechanism comprising a hub or sleeve carrying in a series of circularly
arranged cavities, frictional rollers, and upon its outside a cam ring, the spring
pressed lever carrying a spring pressed head engaging a recess in said lever, a slotted
sleeve fast to said shaft and engaged by a spring pressed slide carried by said pulley
or wheel, substantially as set forth.
13. In a box-nailing machine, the combination with the driver actuating cross-
bead, of the warped board drawing or straightening device consisting of a sliding bar
carrying an adjustable bar and mounted in a pivoted carrier-bar, and pressed by the
action of a spring, against a cam surface, which carrier-bar has lugs between which
works the upper end of a lever carried by a rock shaft to which is connected a
weighted lever, and an arm extending from said cross-head and connected to a
collar on a rod pivotally connected to said weighted lever, substantially as set
forth.
Dated this 2nd day of July 1889