Improvements in Grain Binders.
Year: 1886

page_text: Date of Application, 10th Aug., 1886.
Complete Left, 10th May, 1887.
Complete Accepted, 15th July, 1887.
[Communicated from abroad by CYRUS H. McCORMICK, Junior, of Chicago, County
of Cook, State of Illinois, United States of America, Manufacturer.]
Improvements in Grain Binders.
1, WILLIAM PHILLIPS THOMPSON, Fel. Inst. P.A. of the Agency for Foreign Patent
Solicitors, 6 Lord Street, Liverpool, in the County of Lancaster, and 323 High
Holborn, in the County of Middlesex, Civil Engineer, do hereby declare the nature
of this invention to be as follows:-
This invention relates in the main to an improvement upon the binder shown and
described in Letters Patent of the Kingdom of Great Britain, No. 10,330 granted
July 19th, 1884; a reference to which will facilitate the understanding of the ensuing
description. But it will be evident hereinafter that various of the features of the
present improvement are of general application irrespective of the specific structure
found in said Letters Patent.
For the purpose of this description it may be assumed that the post-frame or main
bracket and the transverse metal frame-bars, as also the transverse wooden bars of the
binder frame, are substantially the same as shown and described in that patent, that
the main tyer-shaft is journalled in the overhanging arm of the post-frame and the
binder-arm-shaft in the subtonding arm, and that a main-gear-and-cam-wheel is
employed at the outer end of said tyer-shaft; that the grain is delivered to the
tripping finger or compressor by means of packers mounted on a crank-shaft and that
the bound sheaf is ejected by revolving arms connected with the tyer-shaft. A table-
trip is, or may be also employed, resembling that shown in said Letters Patent, but
herein, as a distinct improvement of this invention, differently combined with the
tripping mechanism.
In the former machine the main-gear-and-cam-wheel was driven from the packer-
shaft by means of a train of spur-gears, the first of which, on the end of the packer-
shaft, was alternately driven and left idle by means of the tripping clutch, and from
which a second and third carried the motion to the gear-and-cam-wheel.
In the present invention, however, although so far as respects other features the
former arrangement may be employed, still it is preferred to dispense with this train

page_text: and to provide a sprocket-wheel upon the end of the packer-shaft, mount an opposing
sprocket-wheel loosely upon a stub-axle projecting from the standard of the main
bracket adjacent to the main gear-and-cain-wheel and connect the two by a chain.
The face of this sprocket-wheel has the studs or rollers which afford one member of
the tripping clutch of the former machine, and a spur pinion, also mounted loosely
upon the stub-axle, and meshing with the main gear, carries the other member or
tripping-dog, so that when this tripping-dog is released by the trip-latch the sprocket-
wheel and pinion may be clutched together and the main gear driven from the
packer-shaft. The outer end of the stub-axle affords a seat for the stop-dog which by
engagement with a ratchet-tooth on the main-gear prevents back-lash.
In said former machine the compresser and trip fingers were mounted upon a
rock-shaft with a limited capacity of play thereon and connected by a lever with
an independent trip-shaft parallel with said rock-shaft. A crank from this rock-
shaft and a pivoted lover operated by a cam upon, or in the side of, the main-
gear were joined by an elastically yielding link or pitman, so that the rock-shaft
might be oscillated at the proper moment after the binder was started to throw
the tripping and compressing-fingers down beneath the decking and permit the
bound-sheaf to be ejected, and then again raise them, close the grain-passage and
receive the incoming gavel. Herein the rock-shaft is retained, but the compressing
and tripping-finger or fingers are rigidly secured thereto, or else so secured that when
pressed back they will cause the shaft to oscillate to a less or greater extent. The
former parallel trip-shaft and the intermediate lever are both dispensed with, as well
as the low down trip-latch operated by said trip-shaft in the old construction. The
cam-controlled lever, to govern the movement of the rock-shaft, is still retained, but
modified in construction, and the trip-latch is pivoted to the free end of this lever and
is pressed down therefrom by a spring, advisably made capable of adjustment, so as to
come into the path of the trip-dog when the binder is receiving the gavel, and keep
said dog out of engagement. The outer or heel end of said trip-dog is connected with
the crank from the rock-shaft by means of a yielding or elastic link or pitman
practically the same as heretofore, except for this fact, that it is united to the cam
controlled lever only through the interposition of this trip-dog. Thus it will be seen
that when the trip-finger is pressed back by the accumulating gavel the rock-shaft
will be oscillated outward, the spring-pitman drawn down, and the trip-latch moved
upon its pivot against the resistance of its own proper spring so as to raise its nose
out of the path of the trip-dog and release the latter starting the binder.
The lever to which the trip-latch is pivoted is of course held firmly against the
pivotal stress of said latch in this tripping operation by the contact of its heel-end, or
the roller thereon, with the face of an appropriate can on the main-gear. This cam
may either be a groove cut in the gear, or, preferably, is a rib projecting from said
gear, and is of such outline that directly after the binder starts it depresses the heel-
end of the levers thus raising the outer or free end to which the latch is pivoted,
which would naturally draw upon the spring pitman so as to oscillate the rock-shaft
or compresser-shaft inwardly, and carry the compresser or tripping-finger against the
gavel. This, however, is prevented by means of a stop projecting from the outer end
of the front metal transverse frame-bar into position to stay the upward movement of
the crank on said compresser-shaft, after a certain space, sufficient to carry the com-
presser a slight distance inward to additionally compact the gavel. Therefore, the
movement of the lever, acting first upon the pivoted trip-latch and then through the
heel of the latter, encountering the resistance of the pitman, causes the latch-spring to
yield and the latch to be closed up against the under side of the lever and held out of
the way of the trip-dog as it comes around again in the revolution of the sprocket-
wheel and pinion, and kept out of its way by a continuing concentric reach of the
cam-rib until the moment comes for the ejection of the gavel, when the rib falls away
suddenly, and at the same time a tooth or tappet projecting from the hub of the main
gear adjacent to said cam, strikes a lug which projects from the lever on its hub, and
rocks said lever forcibly upon its pivot, carrying down both the trip-latch and the
pitman, oscillating the compresser-shaft outward a sufficient distance to carry the

page_text: trip-fingers beneath the decking, while the ejector-fingers sweep round and discharge
the bound sheaf. Directly thereafter the cam-rib extends sharply outward or in a
radial direction, depressing suddenly and instantaneously the heel-end of the lever and
lifting its outer end, closing the compresser and bringing the trip-latch which is now
released from the strain of the spring-pitman into position to stop and unclutch the
trip-dog.
Where the table trip has been heretofore employed it has actuated a lever-arm from
the trip-shaft which, as already stated, ran parallel with the compresser rock-shaft.
This trip-shaft having now been dispensed with, the same effect is obtained by
extending one or both of the side bars of the table-trip beyond the compresser or trip-
finger and bending it down so as to rest upon an outwardly projecting spur on the
stubble side of said finger or of the block which connects said finger with the rock-
shaft, so that when the table-trip is depressed it will tend to rock said block and shaft
in the same direction as will the trip-finger when grain is packed against it, and thus
start, or assist in starting, the machine, and when the compresser-shaft is rocked
inward in the initial movement after the binder is tripped the table-trip will be lifted
against the gavel and assist the trip-finger in compacting it. The compresser or
trip-finger is or may be adjustably connected to its supporting block by means of a
tongue and a bolt passing through an oblong slot, to clamp the two together.
Instead of driving the knotter and the holder both by independent segment-gears
on the face of the tyer-cam, it is proposed herein to drive the holder-spindle by a
segment-gear on the face of said cain of sufficient length to give it a full revolution,
and then to lock it in position by means of a delay-shoe on its pinion and a delay-
ledge on the face of the cam, and to arrange the knotter spindle obliquely to said
holder-spindle, not only directed inwardly therefrom, but also sufficiently to the rear
or away from the plane in which the binder-arm plays to admit the point of said
binder-arm between the two spindles, and to gear said knotter-spindle with the holder-
spindle by means of beveled pinions at the head of each, whereby a complete revolution
of the holder-spindle gives a complete revolution of the knotter-spindle and stops the
jaws in position to intercept and receive the cord. It is necessary or desirable,
however that the holder should start somewhat in advance of the knotter, and,
therefore the beveled pinions having one a delay-shoe, and the other a delay-ledge,
whereby the knotter is not actuated until the holder has moved sufficiently for its
purpose, which, in the present instance, is really to slightly release the grasp upon the
strand of cord previously held, so that it may be drawn resistingly from the holder as
the knotter turns and demands slack.
The knotter and holder are both mounted upon a swinging stock, so that after the
tying operation is completed they may be swung away from the gavel close to which
the knot has been tied, in order to strip the loop from the knotting jaws and tighten
the knot, and then swung back into position to tie the next knot close to the gavel;
this swinging movement being controlled by means of a cam-groove in the face of
the tyer-cam, into which projects a roller from the heel of the swinging stock. The
knotter itself is of the ordinary form, except that the spring cam by which its pivoted
jaw is closed has its shank extended practically parallel with the spindle and bolted to
the stock near the upper end of said spindle, instead of being transverse to the spindle
as heretofore; this new arrangement causing the pressure upon the pivoted jaw to be
more equable at all points of the revolution while the cam and jaw are engaged.
The slot in the breast-plate, which was formerly straight, or practically so, is now
of somewhat irregular outline so as to afford a finger setting from one side of said
slot beneath the knotter in its revolution, into a recess at the other side and serving
to deflect the cord and guide it more perfectly over the knotting jaws. That the
binder-arm may play through this slot and come up close to the finger, notwith-
standing the irregular or rather oblique outline of the slot it has a jog or bend in its
shank, permitting the point to rise properly through the upper end of the slot and the
shank also to pass through the lower end.
So far as regards other features of this improvement any ordinary holder or holder-
disk that will properly present the cord to the knotter may be employed, but that which

page_text: has been devised in the present machine differs materially from those in general use
nowadays both in construction, operation and manner of holding the cord. Ordinarily
only one strand of the cord is grasped in the holder during the knotting operation
and the holder either moves toward the knotter or else the knotter towards the holder
to gain slack from that strand, while the other strand, presented by the binder-arm,
has the necessary slack pulled through the eye of said arm and ultimately from the
cord receptacle; this latter strand not being grasped in the holder until the knot has
been tied and the gavel is about to be ejected, when the holder moves, releasing the
old strand and grasping and severing the new strand which in its turn becomes the old
strand as the binder arm recedes.
The present holder instead of being a flat disk with notches equidistant around its
periphery, working within a shoe or saddle that embraces it on both sides along a
considerable segment of its periphery, and turning the space of one or two notches
only to each binding operation, it is what may be denominated a crown-disk; that is,
it has an upturned flange around its periphery which, if notched at regular intervals,
would present the appearance of a crown-wheel but is herein only notched at two
points, leaving one broad tooth upstanding between these two notches while the rest of
the periphery is unbroken and is given a full revolution every time the binder is tipped.
The exterior or periphery of the crown-disk, including the upturned flange, is channeled
grooved, or serrated perpendicularly, to better grasp the cord, and beyond this flange
from the bottom of the disk projects a web, which, for convenience, is formed from an
independent plate of hardened metal, having a concentric flange extending up slightly
to about the level of the bottom of the notches and serving to prevent the strands of
cord from falling below the proper level or from being displaced, that is, to hold them
up substantially parallel with each other, during the knotting operation, between the
grasping point and the knotter jaws. Nearly opposite the first or advancing notch in
the holder-disk or crown-disk this exterior flange and web are cut away, and a little
in rear of said notch, at the point where the cut away portion terminates, the flange
rises and is provided with a knife-edge whereby the strands of cord are severed.
From a point just in advance of this front notch and slightly above the bottom of said
notch the exterior periphery of the crown-disk is cut away somewhat to form a slanting
shoulder which terminates at the bottom of said disk over the cut away part of the
exterior web and flange, and slightly in advance of the knife-edge, and serves to
discharge the fag-ends and also, at the proper time, as will presently appear to release
the grasp upon the old ends of the band.
To the stock which supports the holder-spindle is pivoted a clamping shoe which
depends on the inner or grain side into the groove formed by the periphery of the
crown-disk and the encircling exterior flange and presses against the exterior of said
disk, being steadied thereagainst by a dowel-pin from said stock entering a suitable
guide recessed in said shoe, and held yielding thereagainst, with a force determinable
according to circumstances by means of a spiral spring encircling a screw-bolt. The
rear vertical edge of the shoe, or that edge which the cord first comes in contact with
is slightly rounded out or recessed so that the strand may not accidentally slip down
underneath when forced past by the movement of the disk. Above the crown-disk,
and practically raising upon the edge of its upturned flange and in a large part
covering and shielding the latter and preventing the accumulation of debris in the cup
which it presents, is a shield or plate slotted from the inner side in the plane in which
the cord is laid and having the mouth of the slot flared or rounded so as to properly
guide the cord laid by the binder-arm into position to fall into the proper notch in the
holder.
With this construction the operation is as follows; supposing the needle to have
been just threaded and the cord not yet to have been grasped by the holder;-The
rear or second notch of the crown-disk is at this moment, that is, just before the binder
is tripped, at the rear side or edge of the shoe, just beneath the entrance to the slot in
the guard-plate and practically in the plane in which the cord is laid by the binder-
arm and the knotter is in position to intercept the cord as the binder-arm rises. Now
the trip-finger having been pushed back and the binder brought into engagement, the

page_text: binder-arm rises, the holder begins to revolve and the knotter immediately follows..
But the strand of cord brought up by the binder-arm has been held at such elevation
by the guard-plate and by the fact that it is laid across the upper side or chin of the
knotter-jaws, that it has not fallen into the notch in the holder-disk. The revolution
of the knotter will now tie a false knot in the single strand of cord thereby depressing
that part stretched between the jaws and the nose of the binder-arm at such moment
that as the first notch or advancing notch of the crown-disk is brought around beneath
the slot in the guard-plate this strand will fall therein and will be carried against the
shoe and clamped between it and the holder-flange and immediately thereafter will be
severed. The revolution of the crown-disk will continue until it reaches its original
position; that is, with the rear notch beneath the slot in the guard-plate and adjacent
to the rear edge of the holder-shoe, and the front notch almost but not quite past the
front edge of the shoe, and the strand that has just been grasped will extend from said
front notch diagonally across the disk and through the slot in the guard plato to the
eye of the binder-arm, which, then receding, will belay it over the tooth between the
two notches and through the rear notch, thence carrying it over the knotter-jaws and
down beneath the decking. Then a gavel having accumulated sufficiently to start the
binder, the needle will again rise, bringing up the second strand, which as before, will
at first be lifted out of the grasp of the rear notch in the ensuing initial part of the
revolution of the crown-disk, and while the knotter is revolving to lay the loop and
grasp the crossed strands. During this interval, however, the strand originally grasped
has at the very outset of the revolution of the knotter been carried on by the
movement of the crown-disk in such manner that the fag or end originally clamped
between the tooth and the shoe has been pushed past said shoe and released therefrom
so that it is no longer belayed about the tooth, while simultaneously therewith that part
of said strand that was laid in the rear notch in the previous recession of the needle
has been pushed in between the shoe and that part of the crown-disk-flange succeeding
to said rear notch so as to be grasped and held only by the pressure between those two
surfaces, which pressure is so graduated that the strand may be pulled from between
them as the knotter demands slack.
Just as the crossed ends of the band enter between the knotter, and the pivoted jaw
of the latter comes in contact with the spring-cam and is about to be closed, the
revolution of the crown-disk has brought the first notch around to such point that the
exterior slanting shoulder strikes the strand originally grasped, while the new strand,
it will be remembered, is just falling into the notch to be itself grasped, and the further
revolution of the disk causes said flange to force the old strand down out of the grip
of the shoe, thus completely releasing said strand at the instant, or just after the
instant, that the knotter-jaws close and securely grasp it, while the knife at the same
moment severs the new strand between the knotter and the holder, and also, should the
clearing flange have failed to work efficiently, insures the release of the old strand by
likewise severing it. The knot is now formed and free from the holder, and the new
end grasped; the holder comes to rest and the knotter is consequently stopped, but
the supporting bracket for the holder and knotter spindles is immediately swung away
from the end of the sheaf to strip and tighten the knot; the compresser or trip-finger
opens, the ejector, sweeping around, discharges the sheaf, the binder-arm recedes
beneath the decking, the trip-finger again rises, and the machine is thrown out of action
to await the accumulation of the next gavel.
In conclusion it may be stated that although a chain has been described as the
means of communicating motion from the packer-shaft to the clutch-gear on the stub-
Daxle, yet such arrangement is adopted for lightness only, and an idle gear, interposed
between the spur-pinions on the two shafts is to be considered a full equivalent.
1
2
100%
WM. P. THOMPSON & Co.,
Agents for the Applicant.

page_text: Improvements in Grain Binders.
A communication from CYRUS H. MCCORMICK, Junior, of Chicago, in the County
of Cook, and State of Illinois, one of the United States of America, President
of the McCormick Harvesting Machine Company.
I, WILLIAM PHILLIPS THOMPSON, Fel. Inst. P.A. of the Agency for Foreign
Patent Solicitors, 6 Lord Street, Liverpool, in the County of Lancaster, and
323 High Holborn, in the County of Middlesex Civil Engineer, 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:-
This improvement relates in general to an improvement upon the binder shown
and described in Letters Patent of the Kingdom of Great Britain No. 10,330 dated
July 19 1884; a reference to which will facilitate the understanding of the ensuing
description. But it will be evident hereinafter that various of the features of the
present improvement are of general application irrespective of the specific structure
found in said Letters Patent.
For the purpose of this description it may be assumed that the post frame or main-
bracket and the transverse metal frame-bars, as also the transverse wooden bars of the
binder-frame, are substantially the same as shown and described in that patent, that
the main-tyer-shaft is journalled in the overhanging arm of the post-frame and the
binder-arm-shaft in the subtending arm, and that a main-gear-and-cam-wheel is
employed at the outer end of said tyer-shaft; that the grain is delivered to the
tripping-finger or compressor by means of packers mounted on a crank-shaft, and
that the bound sheaf is ejected by revolving arms connected with the tyer-shaft.
The improvements relate to the gear system by which the binder is intermittently
driven from the packer or other driving-shaft; to the manner of mounting and con-
trolling the outside compressing and tripping-finger, and the trip-latch; to the table-
trip and its connection with the tripping mechanism whereby it serves to operate the
latter and is itself operated to act as an under compressor; to a novel construction
of the cord-holder and to the combination of such holder with the knotter, and of
both with the binder-arm; and to various subordinate and accessory features and
details, all as hereinafter explained.
In the drawings;
Figure 1 is a top plan view of a binding attachment embodying features of the
invention, but with knotter-head, breast-plate and decking omitted and the rear end
broken away;
Figure 2 an elevation from the stubble side of the machine with the same parts
omitted;
Figure 3 a rear end elevation, with like omissions, except that the tyer-cam, breast-
plate and ejector are shown ;

page_text: Figure 4 an elevation from the front end showing particularly the driving-gear
system and tripping mechanism ;
Figure 5 a detail view of the trip-clutch and tripping devices immediately
accessory thereto from the front;
Figure 6 a detail view, partly sectioned, and seen from above, of said clutch and
tripping devices;
Figure 7 a side elevation of the outside compressing and tripping-finger,
detached ;
Figure 8 a side elevation of the supporting cam block which carries the com-
pressing-finger and sustains the outer end of the table-trip, showing also, in cross-
section, the trip-shaft to which said block is keyed, and the bolt which clamps the
block and compressor together;
Figure 8a is a section through the compressor and its supporting block, as
indicated by the correspondingly numbered line in the preceding figure;
Figure 9 a detail view of the guide or tightener for the chain belt by which the
binder is driven ;
Figure 10 an elevation, from the rear of the tying-head and tyer-cam, partly in
section as indicated by line and numerals in the succeeding figure;
Figure 11, an elevation of the parts last shown, from the grain-side, with tyer-cam
partly broken away;
Figure 12, a vertical section through the tyer-head on the line indicated in
Figure 13 by numerals 12-12, and seen from the front ;
Figure 13, an elevation of the tyer-head, from the stubble-side, partly sectioned, as
appropriately indicated in the foregoing figure;
Figures 14 and 15 top-plan views of the tyer-head and adjacent portion of the
breast-plate respectively sectioned on lines correspondingly denoted in Figure 11;
Figures 16 and 17, details in plan and elevation of the cord-holder and cutter,
and
Figures 18 to 22 a diagrammatic series illustrating successive stages in the
formation of the completed knot.
A represents the post-frame or main-bracket, having one tubular arm or sleeve a
overhanging the binder-table or decking, and serving as a bearing or support for the
tyer-shaft, and a second tubular arm or sleeve a¹ subtending said table and receiving
the rock-shaft which carries the binder-arın. Bolted to the foot and lower tubular
arm of the post-frame are transverse metal bars A¹, having each on the outer or
stubble side of the arm, a bearing a² for the reception of the rock-shaft which carries the
outside compressing-finger, and on the inner side another bearing a for the packer-
shaft, or that shaft continuously driven from the harvester. At their extreme inner
ends they saddle and are bolted to a tubular frame bar A2 and at their outer ends, just
inside the bearings for the compressor-shaft, are likewise secured to a second tubular
frame-bar A³, extending parallel with the first from front to rear of the binder.
Wooden cross pieces or timbers A*, also bolted to these tubular frame-bars serve to
strengthen the frame towards the rear and to receive and support the decking or
binding-table.
As thus far described the structure of the binder does not, or need not, differ
materially from that shown in the aforementioned patent to Baker and Pridmore, and
in machines built and placed upon the market in accordance therewith for some
seasons past. The changes in the further organization of the machine due to the
improvements made the subject-matter of these presents will now be explained.
In the former machine the main-gear-and-cam-wheel was driven from the packer-
shaft by means of a train of spur-gears, the first of which, running loosely on the
end of the packer-shaft, was alternately actuated and left idle by means of the
tripping-clutch mounted on said shaft, and from which a second and third carried
the motion to the gear-and-cam-wheel.
In the present invention, however, although so far as respects other features the
former arrangement may be employed, still it is preferred to dispense with this train
and to provide a sprocket-wheel B, upon the end of the cranked packer-shaft B',

page_text: "
mount an opposing sprocket-wheel, B', loosely upon a stub-axle b, projecting from
the standard of the main-bracket, or secured in a boss b', thereon adjacent to the
main-gear, or gear-and-cam-wheel, B³, and connect the two sprocket-wheels by a
chain-belt, B4, as shown. The outer face of the second sprocket-wheel has two studs
or rollers 62 and 3, similar to those which in the former machine were carried by a
disk or cross-head affixed to the packer-shaft, to afford one member of the tripping
clutch, and a spur-pinion 64, also mounted loosely upon the stub-axle and meshing
with the main-gear, carries the other member, or trip dog 66, having the usual form
and constantly urged into engagement with the rollers on the sprocket-wheel by
means of a spring 6 so that whenever it is released by the trip-latch the sprocket-
wheel and pinion will be clutched together and the main gear driven from the
packer-shaft.
In order that the driving chain may act accurately its surplus slack must be taken
up. This is accomplished by sleeving upon a hub c, from the bearing of the packer-
shaft, alongside the sprocket-wheel thereon, an arm C having at its further end a
rounded lateral offset or runner c¹ resting upon the upper ply of the chain and tending
to press it down. A set screw c² passing through the hub of the arm and butting
against the said hub from the bearing of the packer-shaft, enables the arm to be
adjusted radially to bear with more or less force upon the chain and keep it at any
proper degree of tension, ordinarily however the chain will be left quite loose.
To prevent back-lash or retrograde movement of the main-gear whenever its
driving pinion is unclutched, a plate spring C is seated as to its heel, upon the
exposed end of the stub-axle which hears said pinion and secured thereto by a
screw c³, and steady-pin ct, or other preventive of rotation. The free end of this
spring normally rests against the rim of the main-gear and rides thereover when
the gear revolves, but just as the gear is terminating its revolution a lug c³, which
may be a lateral extension of one of its teeth, strikes the spring and pushes it aside
and is immediately after dogged by said spring at the instant the gear is thrown
out of action.
In said former machine the compressing and tripping-finger or fingers, was
mounted upon a rock-shaft and permitted a limited play about its axis, and were
connected by a lever with an independent trip-shaft parallel with said rock-shaft so
as to actuate the trip-shaft without moving the rock-shaft. A crank from this rock-
shaft and a pivoted lever operated by a cam upon, or in the side of the main-gear
were joined by an elastically yielding link or pitman so that the rock-shaft might be
oscillated at the proper moment after the binder was started, to throw the tripping
and compressing fingers down beneath the decking and permit the bound sheaf to be
ejected, and then again raise them to close the grain-passage and receive the incoming
gavel. Herein a rock-shaft D is employed in the same, or substantially the same
position and having, like the former a crank d, at its outer end beneath the main gear,
but the compressing and tripping finger or fingers D', are rigidly secured thereto, or
else so secured that when pressed back they will oscillate the shaft to a greater or
less extent. The former parallel trip-shaft and the intermediate lever are both
dispensed with, as well as the low-down trip-latch operated by said trip-shaft in the
old construction. A cam-controlled lever D', pivoted upon a stub-axle d¹ from the
main-bracket, carrying an anti-friction roll d' upon a lateral stud from its heel end,
and having a stop finger d³, to be struck at a certain time by a tappet d*, on the hub
of the main-gear for a purpose presently explained, also governs the movement of the
rock-shaft, or compressor-shaft as it may hereafter be called, but differs greatly in
construction and relations from its predecessor, and the trip-latch D³ is pivoted to a
hanger d³ from the outer end of this lever, extending inwardly from the pivotal point
a sufficient distance (advisably beyond the pivot of the lever) to bring its nose into
position to stop the trip-dog, and between said nose and pivot pressed down from the
lever and towards the path of the dog by means of a spring d adjustable in stress by
a screw d set in the lever. A stop d at the extreme outer end of the lever intercepts
the heel of the latch whenever its nose has reached the path of the dog and bars it
from further movement upon its pivot under the force of the spring. The outer or

page_text: heel end of the trip-latch is connected with the crank-arm from the compressor-shaft
by means of a yielding or elastic link or pitman D' practically the same as heretofore,
except for this fact, that it is united to the cam-controlled lever only through the
interposition of the trip-latch. Thus whenever the trip-finger is pressed back by the
gavel accumulating against it under the forcible action of the packers E, the rock-
shaft will be oscillated outward, the spring-pitman drawn down and the trip-latch
moved upon its pivot against the resistance of its own proper spring so as to raise its
nose out of the path of the trip-dog and release the latter which will thereupon fly
into engagement, clutching the sprocket-wheel and pinion together, and starting the
binder. Were the nose of the latch to extend short of the lever-centre the wear of
the roller on said lever, and of the controlling cam, might eventually allow it to fall
into the path of the dog, but when it is as above advised, extended to the inner side
of said centre, the only effect of such wear is to carry it further out of the range of
the clutch.
The cam F, upon which the roller at the heel end of the just mentioned lever
travels, and by which said lever is controlled in its movements may be either a groove
cut in the gear, or preferably is a rib projecting from the side of said gear, and
starting from the position of rest, shown in Figure 5, is formed with a short con-
centric reach, which permits the binder to start and gather headway without the
labor of simultaneously actuating the compressor, then has an abrupt rise f1, which
depresses the heel end of the lever, thus raising the outer or free end, to which the
trip-latch is pivoted, and drawing upon the spring pitman so as to tend to oscillate
the compressor-shaft inwardly, and carry the compressor or tripping-finger against
the gavel. Such movement of the compressor is prevented, or rather limited,
however, by means of a stop f projecting from the outer end of the front metal
transverse frame-bar into position to stay the upward movement of the crank on said
compressor-shaft after a certain space, sufficient to carry the compressor a slight
distance inward to additionally compact the gavel. Therefore, the movement of the
lever, acting first upon the pivoted trip-latch and then through the heel of the latter
encountering the resistance of the pitinan, causes the latch-spring to yield, and the
latch to be closed up against the under side of the lever and held out
of the way of the trip-dog as it comes around again in the revolutions of the
sprocket-wheel and pinion. This arrangement also insures the removal of the
latch from the path of the dog when the machine is running empty. The rise, ƒ¹,
is succeeded by a slow eccentric reach f³, which continually increases the
compression of the spring-pitman, and consequently the resistance of the compressor
without however advancing the latter, on account of the stop barring oscillation of
its shaft, until the moment comes for the rejection of the gavel, when it merges into
a rapidly insetting reach f³, and at the same time the before mentioned tappet d'
projecting from the hub of the main-gear adjacent to said cam, and provided for
greater certainty only, strikes the lug d which projects from the lever or its hub, and
rocks said lever positively upon its pivot, carrying down both the trip-latch and the
pitman, oscillating the compressor-shaft outward a sufficient distance to swing
the trip-finger beneath the decking, while the ejector-fingers F' sweep around and
discharge the bound sheaf. Directly thereafter the cam rib has its final reach f^,
extending sharply outward or in a radial direction, depressing suddenly and
instantaneously the heel end of the lever and lifting its outer end, closing the
compressor and bringing the trip-latch, which is now released from the strain of the
spring-pitman, into position to stop and unclutch the trip-dog.
Where the table-trip has been heretofore employed it has actuated a lever-arm
from the trip-shaft which, as already stated, ran parallel with the compressor rock-
shaft. This trip-shaft having now been dispensed with, the same effect is obtained by
extending one or both of the side-bars, g, of the table-trip G beyond the compressor or
trip-finger and bending it down so as to rest upon an outwardly projecting cam glon
the stubble side of said finger or of the block G¹ which connects said finger with the
rock-shaft, so that when the table-trip is depressed it will tend to rock said block and
shaft in the same direction as will the trip-finger when grain is packed against it, and
B

page_text: thus start, or assist in starting the machine and when the compressor-shaft is rocked
inward in the initial movement after the binder is tripped the fable trip will be lifted
against the gavel and assist the trip-finger in compacting it. The compressor or trip-
finger is or may be adjustably connected to this supporting block by means of a
tongue upon the block, taking into one of a series of grooves in the side
of the finger and by a bolt g* passing through the finger and a transverse slot g³
in the block to clamp the two together.
Instead of driving the knotter H, and the holder H¹, both by independent segment-
gears on the face of the tyer-cam H2, the holder-spindle is driven by a segment-
gear H on the face of said cam of sufficient length to give it a full revolution, and
then is locked in position by means of a delay-shoe on its pinion h² or upon the
spindle, and a delay-ledge on the face of the cam, and the knotter-spindle h* is
arranged obliquely to said holder-spindle, not only directed inwardly therefrom but
also sufficiently to the rear or away from the plane in which the binder-arm
plays to admit the point of said binder-arm between the two spindles, and is geared
thereto by means of bevel-pinions and he, at the head of each, whereby a complete
revolution of the holder-spindle gives a complete revolution of the knotter-spindle and
stops the knotter-jaws in position to intercept and receive the cord. It is necessary or
desirable, however, that the holder should start somewhat in advance of the knotter
and therefore, the pinion at the head of the knotter-spindle has a delay-shoe ' which
engages with a delay-ledge / upon the pinion at the head of the holder-spindle whereby
the knotter is not actuated until the holder has moved sufficiently for its purpose,
which, in the present instance, is really to slightly release the grasp upon the strand
of cord previously held, so that it may be drawn resistingly from the holder as the
knotter turns and demands slack.
18
The knotter and holder are both mounted upon a stock I, pivoted upon a short
axle i, from the bracket I¹ which connects the breastplate with the tyer-shaft so
that after the tying operation is completed they may be swung away from the
gavel, close to which the knot has been tied, with the knotter-jaws trending
inward in order to strip the loop therefrom, and tighten the knot, and then swung
back into and retained in position to tie the next knot close to the gavel, this
swinging movement being controlled by means of a cam-groove I' in the face of
the tyer-cam, having essentially the outline shown into which projects a roller from
the heel of the swinging stock.
The knotter itself is of the ordinary form and its jaws controlled as usual, except
that the spring-cam K by which its pivoted jaw is closed, instead of being transverse
to the spindle as heretofore, has its shank extended upward pràctically parallel with
the spindle seated against a lug k, from the stock near the upper end of said spindle,
and secured to said stock, and adjustable in tension by means of a set screw k¹
arranged between the lug and the cam surface, while snugs ², prevent it from being
moved laterally by the rotation of the tying-jaws; this new arrangement causing the
pressure upon the pivoted jaw to be more equable at all points of the revolution while
the cam and jaw are engaged.
The cord-slot in the breast-plate L which formerly was straight, or practically
straight, is now of somewhat irregular outline so as to afford an oblique-finger l
setting from one side of said slot beneath the knotter in its revolution, into a recess ³
at the other side and serving to deflect the cord, and guide it more perfectly over the
knotting-jaws. That the binder-arm may play through this slot and come up close to
the finger, notwithstanding the irregular or rather oblique outline of the slot it has a
jog or bend m in its shank, permitting the point to rise properly through the upper
end of the slot and the shank also to pass through the lower end.
So far as regards other features of this improvement any ordinary holder or holder-
disk that will properly present the cord to the knotter may be employed, but that
which has been devised in the present machine differs matérially from those in general
use nowadays both in construction, operation and manner of holding the cord.
Ordinarily only one strand of cord is grasped in the holder during the incipiency of the
knotting operation and the holder either moves towards the knotter, or else the knotter

page_text: towards the holder, to gain slack from that strand, while the other strand, presented by
the binder-arm, has the necessary slack pulled through the eye of said arm and ulti-
mately from the cord-receptacle; this latter strand not being grasped in the holder
until the knot has been partly laid, when the holder moves, releasing the old strand and
grasping and severing the new strand, which in its turn becomes the old strand, as the
binder-arm recedes. The present holder, instead of having as its active member a flat
disk with notches equidistant around its periphery, working within a shoe or saddle that
embraces it on both sides along a considerable segment of its periphery and turning the
space of one or two notches only, to each binding operation, what may be denominated
a crown-disk that is, it is formed with a discular body, N, and has an upturned flange, n,
around its periphery, which if notched at regular intervals, would present the
ance of a crown-wheel, but is herein only notched at two points, the first notch n'
appear-
being hereafter termed the front or advancing notch, and the other, n², the rear
or belaying notch, leaving one broad tooth n³, serving as a clamping and belay
tooth upstanding between these two notches while the rest of the periphery is
unbroken, and it is given a full revolution every time the binder is tripped. The
exterior or periphery of the crown-disk, including the upturned flange, is channeled,
grooved, or serrated perpendicularly to the body, to better grasp the cord, and beyond
this flange from the bottom of the disk projects a web N', which, for convenience, is
formed from an independent plate of hardened metal, having a concentric flange n
extending up slightly to about the level of the bottom of the notches and serving to
prevent the strands of cord from falling below the proper level or from being displaced,
that is, to hold them up substantially parallel with each other, during the knotting
operation, between the grasping point and the knotter-jaws. Nearly opposite the
first or advancing notch in the holder-disk or crown-disk this exterior flange and web
are cut away as at n° and a little in rear of said notch, at the point where the cut away
portion terminates, the flange rises into a knife-blade, ne, provided with a cutting
edge whereby the strands of cord are severed. In order to set up the knife to compen-
sate for wear, the plate N¹ is attached to the crown-disk proper by clamping screws n²
passing through arc-slots in said plate, so that when the screws are loosened it may be
turned upon its axis to advance the knife-blade, and then held in the proper
adjustment by tightening the screws once more. From a point just in advance of the
front notch and slightly above the bottom of said notch, the exterior periphery of the
crown-disk is cut away somewhat to form a slanting shoulder n which terminates at the
bottom of said disk over the cut away part of the exterior web and flange, and slightly
in advance of the knife-edge, and serves to discharge the fag-ends, and also, at the
proper time, as will presently appear, to release the grasp upon the old end of the band.
To the stock which supports the holder-spindle is pivoted at the shank of a
clamping shoe O, which depends on the inner or grain side into the groove formed by
the periphery of the crown-disk, and the encircling exterior flange and presses against
the exterior of said disk being steadied thereagainst by a dowel-pin, o', from said stock,
entering a suitable guide slot or recess in said shoe, and held yieldingly thereagainst,
with a force determinable according to circumstances, by means of a spiral spring of,
encircling a screw-bolt, o³, threaded into the stock. The initial vertical edge of the
shoe, or that edge which the cord first comes in contact with, is slightly rounded out
or recessed as at o, so that the strand may not occasionally slip down underneath when
forced past by the movement of the disk. Above the crown-disk and practically
resting upon the edge of its upturned flange and in a large part covering and shielding
the latter, and preventing the accumulation of debris in the cup which it presents, is a
shield or plate P, slotted from the inner side in the plane in which the cord is laid and
having the mouth of the slot p, flared or rounded so as to properly guide the cord laid
by the binder-arm into position to fall into the proper notch in the holder.
With this construction the operation is as follows:
0,
Supposing the needle to have been just threaded and the cord not yet to have been
grasped by the holder, the second or belaying notch of the crown-disk is at this
noment, that is, just before the binder is tripped, at the rear side or edge of the shoe,

page_text: or that side adjacent to the cord-slot, just beneath the entrance to the slot in tho
guard-plate and practically in the plane in which the cord is laid by the binder-
arm, and the knotter is in position to intercept the cord as the binder-arm rises.
Now the trip-finger having being pushed back and the binder brought into
engagement, the binder-arm rises, the holder begins to revolve, and the knotter
immediately follows. But the strand of cord brought up by the binder-arm has
been held at such elevation by the guard-plate and by the fact that it is laid
across the upper side or chin of the knotter-jaws, that it has not fallen into the
belaying notch, and is therefore not grasped. The revolution of the knotter will
now tie a false knot in the single strand of cord thereby depressing that part
stretched between the jaws and the nose of the binder-arm at such moment, that
as the first notch or advancing notch of the crown-disk is brought around beneath
the slot in the guard-plate, this strand will fall therein and will be carried against
the shoe, and clamped between it and the belay-tooth of the holder-flange and immedi-
ately thereafter will be severed. The revolution of the crown-disk will continue until
it reaches its original position; that is, with the belaying notch beneath the slot in
the guard-plate and adjacent to the rear edge of the holder-shoe, and the front notch
almost but not quite past the front edge of the shoe, and the strand that has
just been grasped will extend from said front notch diagonally across the disk and
through the slot in the guard plate to the eye of the binder-arm, which, then
receding, will belay it over the tooth between the two notches and through the rear
notch, thence carrying it over the knotter-jaws and down beneath the decking. Then
a sufficient gavel having accumulated to start the binder, the needle will again rise,
bringing up the second strand which, as before, will at first be held raised out
of the grasp of the roar notch in the ensuing initial part of the revolution of
the crown-disk, and while the knottor is revolving to lay the loop and grasp the
crossed strands. During this interval, however, the strand originally grasped has at
the very outset of the revolution of the knotter been carried on by the movement of
the crown-disk in such manner, that the fag or end originally clamped between the
tooth and the shoe has been pushed past said shoe and released therefrom, so that it is
no longer belayed about the tooth, while simultaneously therewith that part of said
strand that was laid in the rear notch in the previous recession of the needle has been
pushed in between the shoe and that part of the crown-disk-flange succeeding to said
rear notch so as to be grasped and held only by the pressure between those two sur-
faces, which pressure is so graduated that the strand may be pulled from between them
as the knotter demands slack. Just as the crossed ends of the band enter between the
knotter, and the pivoted jaw of the latter comes in contact with the spring-cam and
is about to be closed, the revolution of the crown-disk has brought the first notch
around to such point that the exterior slanting shoulder strikes the strand originally
grasped, while the new strand, it will be remembered, is just falling into the notch
force to be itself grasped, and the further revolution of the disk causes said flange to
the old strand down out of the grip of the shoe, thus completely releasing said strand
at the instant, or just after the instant, that the knotter-jaws close and securely grasp it,
while the knife at the same moment severs the new strand between the knotter and the
holder, and also should the clearing flange have failed to work efficiently, insures the
release of the old strand by likewise severing it. The knot is now formed and free
from the holder, and the new end grasped; the holder comes to rest and the knotter
is consequently stopped, but the supporting bracket for the holder and knotter spindles
is immediately swung away from the sheaf to strip and tighten the knot, the
compressor or trip-finger opens, the ejector, sweeping around, discharges the sheaf, the
binder-arın recedes beneath the decking the trip-finger again rises, and the machine is
thrown out of action to await the accumulation of the next gavel.
In conclusion it may be stated that although a chain has been described as the
means of communicating motion from the packer-shaft to the clutch-gear on the stub
axle, yet such arrangement is adopted for lightness only, and an idle gear, interposed
between the spur-pinions on the two shafts is to be considered a full equivalent.

page_text: Having now particularly described and ascertained the nature of the said invention,
and in what manner the same is to be performed, as communicated to me by my
foreign correspondent, I declare that what I claim is :
1. The combination substantially as hereinbefore set forth, of the main-gear, a
sprocket-wheel fixed to the end of a shaft constantly driven from the harvester, an
opposing sprocket-wheel on a stub-axle adjacent to the main-gear, a loose pinion,
alongside thereof, ineshing with the main-gear, a trip-clutch between said loose pinion
and the adjacent sprocket-wheel, and a connection between said trip-clutch and the
trip-lever.
2. The combination substantially as hereinbefore set forth, of the main-gear, a
sprocket-wheel on the constantly driven packer-shaft, an opposing sprocket-wheel on
the stub-axle adjacent to the main gear, a loose pinion mounted on said stub-axle and
meshing with the main-gear, a trip-clutch between said loose pinion and the adjacent
sprocket-wheel, a trip-latch operating to hold the trip-dog out of engagement, the
outside tripping and compressing finger mounted on a rock-shaft and a link
connecting a crank from said rock-shaft with the heel of the trip-latch.
3. The combination substantially as hereinbefore set forth, with the trip-clutch, the
pivoted trip-latch, the tripping and compressing finger closing the passage from the
grain receptacle, the rock-shaft on which it is mounted, and a link connecting an arm
from said rock-shaft with the heel of the trip-latch.
4. The combination substantially as herein before set forth, with a pinion meshing
directly with the main-gear, of a trip-dog carried by said pinion, a pivoted trip-latch
to disengage said trip-dog, an outside tripping and compressing-finger mounted on a
rock-shaft, and a connection between an arm of said rock-shaft and the heel of the
trip-latch.
5. The combination substantially as hereinbefore set forth, of the main gear, a
pinion meshing therewith, a trip-dog carried by said pinion and engaging with lugs
from a constantly driven part of the gearing, a lever pivoted to the frame and vibrated
by a cam on said main gear, a trip-latch pivoted to the outer end of said lever, a
trip-finger mounted on a rock-shaft and a pitman connecting an arm from this
rock-shaft with the heel of the trip-latch.
6. The combination substantially as hereinbefore set forth, of the main-gear, a
pinion meshing therewith and carrying a trip-dog, constantly driven mechanism with
which said dog engages, a lever pivoted to the frame and vibrated by a cam on
said main gear, a trip-latch pivoted to the free end of said lever, a spring
interposed between the trip-latch and the lever to press the nose of the trip-latch
down into the path of the trip-dog, a trip-finger mounted on a rock-shaft and a
pitman connecting an arm from said rock-shaft with the heel of the trip-latch.
7. The combination substantially as hereinbefore set forth, of the main-gear, a
pinion meshing therewith and carrying a trip-dog, a constantly driven wheel having
lugs with which said trip-dog engages, a lever pivoted to the frame and vibrated by a
cam on the main-gear, a trip-latch pivoted to the outer end of said lever, a spring to
press said trip-latch down to bring its nose into the path of the trip-dog and a stop on
the lever to limit its downward movement, a trip-finger mounted on a rock-shaft, and
an elastically yielding link connecting an arm from said rock-shaft with the heel of
the trip-latch.
8. The combination substantially as hereinbefore set forth, with the main-gear and
its driving pinion and the trip-dog carried by said pinion, of the lever pivoted to
the frame and vibrated by a cam on said main-gear, the trip-latch pivoted to the outer
end of the lever and extending inwards past the centre of said lever, the spring
pressing said trip-latch down and the stop which limits its movement, the trip-finger
and its rock-shaft, and the spring-link connecting an arm from said rock-shaft with
the heel of the trip-lever.
9. The combination substantially as hereinbefore set forth, with the trip-finger and
its rock-shaft and the arms from said rock-shaft, of the stop on the frame to limit the
inward movement of the trip-finger the trip-latch, the lever to which it is pivoted, the

page_text: cam which vibrates said lever having a slow upward incline or eccentric to lift the
lever gradually until the close of the binding operation, and the spring-link connecting
the arm from the compressor-shaft with the heel of the trip-latch, whereby the
compressing-finger is first carried inward against the gavel until stopped by the
contact of its arm with said stop, and then the stress of the spring-pitman constantly
increased to increase the resistance of the compressor.
10. The combination substantially as hereinbefore set forth, of the trip-latch, the
lever to which it is pivotod, the cam which actuates said lever having first a concentric
reach that the machine may start without moving the lever then a quick outward
incline, then a slow outward or eccentric reach, the tripping and compressing-finger,
the rock-shaft on which it is mounted, the arm from said rock-shaft, the stop on the
frame, and the spring link connecting the heel of the trip-latch with said arm, for the
purpose described.
11. The combination substantially as hereinbefore set forth, of the trip-latch, the
lever to which it is pivoted, the cam which vibrates said lever having practically the
outline shown and described, the lug from said lever and the tappet revolving with the
shaft which supports said cam, the tripping and compressing finger, the rock-shaft on
which it is mounted, and the spring-link connecting an arm from said rock-shaft with
the heel of the trip-finger.
12. The combination substantially as hereinbefore set forth, of the main-gear, the
packer-shaft, the sprocket-wheel fixed thereto, the opposing sprocket-wheel running
loosely on a stub-axle adjacent to the main-gear, the chain connecting the two
sprocket-wheels, the pinion running loose on said stub-axle and carrying a driving-
dog, lateral lugs or rollers from the side of the adjacent sprocket-wheel with which
said dog engages, and a trip-latch to throw the dog out and stop the pinion while the
sprocket wheel continues to revolve.
13. The combination substantially as hereinbefore set forth, with the trip-finger and
its rock-shaft, and the cam at the base of the trip-finger, of the table-trip extended to
rest on said cam, and means for rocking said shaft to carry the trip-finger inward
after the binder starts, whereby the table-trip is lifted against the gavel to serve
as an under compressor.
14. The combination substantially as hereinbefore set forth, with the outside
trip-finger and its rock-shaft, and the cam at the base of said finger, of the table-trip
extended to rest on said cam, the trip-latch link connected to an arm from said
rock-shaft and means whereby said trip-latch is raised after the binder starts to carry
the, trip-finger inward, thereby lifting the table-trip to cause it to serve as an under
compressor.
15. The combination substantially as hereinbefore set forth, with the outside
trip-finger and the rock-shaft on which it is mounted, of the cam at the base of said
finger, the table-trip extended to rest on said cam, the arm from said rock-shaft, and
the stop on the frame against which said arm is carried, the spring-link connecting
said arm with the heel of the trip-latch, and means whereby said trip-latch is lifted
after the binder starts to carry the trip-finger forward to operate the table-trip to
serve as an under compressor.
16. The combination substantially as hereinbefore set forth, with the outside
trip-finger, the rock-shaft on which it is mounted, and the cam at the base of the
trip-finger, of the table-trip extended to rest on said cam, the arm from the rock-shaft,
the stop against which said arm is carried, the trip-latch, the lever to which it is
pivoted, the cam which vibrates said lever upwards after the binder starts, and the
spring-link connecting the heel of the trip-latch with the rock-shaft.
17. The combination substantially as hereinbefore set forth, of the tyer-cam having
segment-rack and delay-surface, the holder-spindle having a pinion and delay-shoo
engaging with said rack and delay-surface, and the knotter-spindle engaged with said
holder-spindle by intermeshing gears, and driven therefrom.
18. The combination substantially as hereinbefore set forth, of the tyer-cam
having a segment-rack and delay-surface, the holder-spindle having a driving pinion
and delay-shoe engaging with said rack and delay-surface, the knotter-spindle

page_text: arranged obliquely to the holder-spindle, the intermeshing bevel gears at the head of
each spindle, and the binder-arm arranged to pass between the knotter spindle
and holder-spindle.
19. The combination substantially as hereinbefore set forth, of the holder-spindle
having a crown-disk-holder at its foot, and arranged on one side of the plane of
movement of the binder arm, and the knotter-spindle having a tying-bill at its foot,
and arranged on the other side of said plane of movement.
20. The combination substantially as hereinbefore set forth, to form a holder, of the
crown-disk having a serrated peripheral flange, the shoe pressing against the serrated
face of said flange, a notch at its rear to stop the cord from passing beneath, and the
spring arranged to press said shoe against the flange.
21. The combination substantially as hereinbefore set forth, with the crown-disk
and its shoe pressing against the exterior of the flange, of the inclined ledge or
shoulder at the rear of the advancing notch in said disk.
22. The combination substantially as hereinbefore set forth, with the crown-disk
and the shoe which presses against its periphery, of the web projecting out from the
bottom of said disk and upturned into a concentric flange to prevent the strands of
cord from falling below the proper level or from being displaced.
23. The combination substantially as hereinbefore set forth, with the crown-disk
and the shoe which presses upon its flange, of the knife revolving with said crown-
disk exterior to the shoe.
24. The combination substantially as hereinbefore set forth, with the crown-disk
and its shoe, of the web extending out from the bottom of the disk and having an
upturned concentric flange extending up to about the level of the bottom of the
notches in said crown-disk, and cut away opposite and beneath the advancing notch
to permit fag-ends to drop out.
25. The combination substantially as hereinbefore set forth, with the crown-disk
and its shoe, of the plate attached to the bottom of said crown-disk and having an
exterior concentric flange, the knife on said plate, and means whereby said plate may
be adjusted axially about said disk to advance or retard the action of the knife.
26. The combination substantially as hereinbefore set forth, of the crown-disk
having two notches and a broad delay-tooth between them, of the shoe pressing upon
the exterior of the flange, and means for giving said crown-disk a complete revolution
in each knotting operation.
27. The combination substantially as hereinbefore set forth, with the crown-disk
and its shoe, of the cap-covering said crown-disk and slotted to direct the cord-strands
into the proper notch while preventing them from falling into the notch at any
other place.
28. The combination substantially as hereinbefore set forth, of the tyer-cam, the
supporting stock for the holder and knotter-spindle pivoted upon the frame
eccentrically to the tyer-shaft, means for giving the tying-bill a complete revolution
and stopping it with its jaws pointing inward, the cam-groove in the face of the
tyer-cam, and a roller from the heel of the swinging stock extended into said
cam-groove, whereby the knotter and holder are swung outward after the knot has
been laid, to strip and tighten it.
29. The combination substantially as hereinbefore set forth, with the knotter and
holder and with the breast-plate having an oblique finger or trend in its slot, of the
binder-arm having a jog in its shank to enable it to carry the cord to the holder
notwithstanding said oblique trend of the slot.
1007
WM. P. THOMPSON & Co.,
Agents for the Applicant.