Improvements in Machines for Inserting Metallic Fastenings into Work, chiefly Designed for Use in the Manufacture of Boots and Shoes.
Year: 1897

page_text: Date of Application, 25th May, 1897-Accepted, 10th July, 1897
COMPLETE SPECIFICATION.
Improvements in Machines for Inserting Metallic Fastenings into
Work, chiefly Designed for Use in the Manufacture of Boots and
Shoes.
1, LOUIS HENRY GODDU, of Winchester, Massachusetts, United States of America,
Mechanic, 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 invention relates to a machine for inserting screws formed from a con-
tinuous screw-threaded wire, into the soles of boots and shoes for the purpose of
uniting the outer sole to the upper and inner sole, and has for its object to provide
an efficient machine of improved construction as will be described, whereby
simplicity, durability and accessibility of parts, and perfection of operation may
be obtained at a minimum cost.
In accordance with this invention, the wire to be inserted into the stock and
which is previously screw-threaded, is fed or inserted into the material or work
through a revolving spindle by a feed mechanism of novel construction as will be
described, with which co-operates a novel measuring device or apparatus auto-
matically controlled by the thickness of the work as will be described, to regulate
the length of wire screwed into the material or work.
The measuring device or apparatus is connected to a work support or horn and
has co-operating with it, a device by which the distance the work support or horn.
is lowered from the wire-carrying spindle, may be controlled or regulated as
desired.
The portion of the wire inserted into the work, is severed from the remaining
portion of the continuous wire, by suitable knives or cutters, secured to carriers
located in substantially the same horizontal plane and mounted on separate pivots,
whereby torsional or twisting action on the cutter carriers while in operation, is
avoided; and the said carriers are of novel construction and are operated in a novel
manner as will be described, whereby increased efficiency may be obtained.
The work support or horn is of a novel construction as will be described, and is
upwardly spring-pressed in a novel manner, as will be described, and the said horn
is connected to its operating parts in a novel manner, which permits of a rotary
movement of the horn and its shaft and which also controls the vertical motion of
the said shaft.
The machine is further provided with a novel construction of feed mechanism
for the work.
These and other features of this invention will be pointed out in the claim at
the end of this specification.
Fig. 1 is a side elevation of the upper portion of a machine embodying this
invention.
Fig. 1, a detail to be referred to.
Fig. 2, a side elevation with parts broken away of the lower portion of the
nachine, which figure is to be read in connection with Fig. 1.

page_text: Fig. 24, a detail to be referred to.
Fig. 3, a side elevation of the machine shown in Fig. 1, iooking at the opposite
side thereof.
}
Fig. 4, a longitudinal section on an enlarged scale through the wire-carrying
spindle, the section being taken on the line 4-4, Fig. 1.
...
Fig. 5, a sectional detail on an enlarged scale through the lower portion of the
wire-carrying spindle and its head, the section being taken on the line 5-5, Fig. 6.
Fig 6, a sectional detail through the spindle head on the line 6-6, Fig. 5.
Fig. 7, a sectional detail through the spindle head on the line 7---7, Fig. 5.
Fig. 8, a sectional detail on an enlarged scale through the wire-carrying spindle
on the line 8-8, Fig. 4, and looking upward.
Fig. 9, a sectional detail on an enlarged scale on the line 9-9, Fig. 1, looking
down, to niore clearly show the cutter carriers.
Eig. 10, a detail in elevation to be referred to.
2
:
Fig. 11, a vertical section of the machine shown in Fig. 3 on the line 11.
Figs. 12 and 13, sectional details of the work-feeding mechanism to be
referred to.
Fig. 14, a detail on an enlarged scale of the measuring apparatus for the
wire-feed mechanism.
:
Fig. 15, a detail in elevation to be referred to.
Fig. 16, a vertical section on the line 16-16, Fig. 15, and
Fig. 17, a detail in plan of the wire-feed stopping mechanism."
The main or supporting framework of the machine may be of any suitable or
desired construction, and, as hereinshown, comprises essentially a hollow or open
base portion A provided with feet a adapted to he holted or otherwise firmly
fastened to the floor or other foundation, an upright or standard A' preferably.
integral with the said base, and a head A2 preferably of the construction shown in
Fig. 1, and firmly secured to the standard or upright A' as by bolts or screws a...
The head A may and preferably will be made of the construction hereinshown
and consists essentially of an open framework composed of the front and rear
sides 2, 3, top 4, cross bars 5, connecting the sides 2-3, on opposite sides of the
head, and arms 6 depending from and forming part of the sides 2-3, below the cross
bars 5.
The side 2 of the head has extended through it and supported in suitable
bearings as will be described, a hollow wire-carrying spindle a (see Figs. 1 and 4),
which may be of any suitable or desired construction, such as now commonly found
in machines of this class and which, in the present instance, is extended through
a bearing sleeve within the side 2 of the head and composed of two parts a³, aº,
between which the hollow spindle at has fastened on it, a sleeve provided with a
worm a, the said worm sleeve being shown in Fig. 4 as screw-threaded on its
interior to engage screw-threads on the spindle a*.
The spindle a at its lower end below the side 2 of the head, is provided with a
socket into which is extended a stem a8 on a head a for the said spindle, the said
stem being secured in its socket to attach the head as to the said spindle, preferably
as hereinshown, by screw-threads on the end of the stem engaging screw threads
within the socket in the spindle as clearly shown in Fig. 4. The spindle is
provided at its lower side or bottom with a nose piece a¹0 (see Fig. 5) and the
spindle, the spindle head a³, its stem a³, and the nose piece ao are provided
with longitudinal openings or holes in line with each other, to form a continuous
passage for the wire which is to be inserted into the material. The spindle a
is provided at its upper end with a pulley a fast on it and supported on antifriction
or roller bearings a³, revolving on a lower bearing plate a secured to the upper
surface of the side 2 of the head. The spindle a between the head and the
lower end of the side 2 of the head, has loosely mounted on it, a sleeve a¹5 (see
Figs. 4 and 5) provided with an annular, flange, the upper surface of, which is
beveled as hereinshown and forms a bearing surface for antifriction rollers a
upon which rests a collár 18 of larger diameter than the said sleeve to permit of

page_text: a substantially smail or limited lateral movement of the collar with relation to the
sleeve, the said collar being provided with diametrically opposite studs 19, 20
to, which the actuating mechanism for the wire-feeding mechanism is connected,
as will be described. The collar 418 is held down into contact with the rollers a",
as hereinshown, by a washer a200, and a threaded sleeve a provided with an
annular flange a bearing on the washer a200, the said sleeve being hereinshown
as screw-threaded on its interior to engage screw-threads 23 on the sleeve a (see
Figs 4 and 5). The spindle head aas. hereinshown consists of a main piece
substantially oblong in shape and composed of the side walls 10, 12, 13, 14 (see
Fig. 6), the said main piece being recessed or made hollow at its lower portion for
the reception of wire-feeding rolls a5 26 and a driving pinion or gear 27 for
said rolls, the said pinion being loosely mounted on a stud extended through
the wall 10 of the spindle head and secured thereto by a nut 2, the said pinion
having secured to or forming part of it a hub or sleeve 30, upon which is loosely
mounted a gear or pinion having secured to or forming part of it a ratchet
wheel, having co-operating with it a pawl a carried by an arm a fast
on the sleeve or hub and hereinshown as screwed thereon and secured by the
screw nut a. The pawl a is acted upon by a spring a to hold it in engagement
with the ratchet wheel a
1
The loose gear or pinion a³ meshes with the feed roll or wheel having the
gear teeth integral with it and fast on a shaft a (see Fig. 7) supported in the main
(solid portion of the spindle. head a".
The shaft at an intermediate point is preferably made tapering and screw-
threaded to engage screw threads on the interior circumference or bore of the
geared feed roll a². The feed roll 25 meshes with the geared feed roll or
wheel a, which is fast on a shaft at of like construction to the shaft 37 and
having bearings in a detachable cap or plate a secured to the wall 13 of the
spindle head by a screw bolt a as hereinshown (see Fig. 5) the lower portion of
the cap or side piece being provided with the recess for the feed wheel or
roll a. The feed wheels or rolls 226 are provided with annular grooves att
(see Fig. 7), which may be suitably formed with a screw worm to engage the wire
between its threads, the said grooves, where they embrace the wire, forming a part
of the continuous passage through the spindle head.
By reference to Figs. 5, 6 and 7, it will be seen that the feed rolls, which, in this
instance, have the gears integral with them, are fast on their shafts between the
ends of the same, and the said ends are supported in solid bearings, which construc-,
tion of feed mechanism is durable, simple and of easy motion.
The pinion is actuated by a rack bar a secured to or forming part of a slide
plate or bar a attached to or forming part of the sleeve a, so that when the
said, sleeve is moved downward as will be described, the rack bar will turn
the pinion a27, which will move or revolve the ratchet arm in the direction of the
arrow 50, Fig. 10, and, by means of the pawl a³, will turn the ratchet wheel a³
and the pinion a³, which latter will turn the feed gears or wheels a 2 The
slide carrying the rack bar is dovetailed into the wall 14 of the head a³, and
the said wall is provided with a longitudinal slot, which permits the rack bar to
project beyond the inner face of the wall 14, and engage the pinion or gear a27,
the rack bar a being of less width than the slide plate a
The downward movement of the sleeve a may and preferably will be effected
by an actuating mechanism consisting of two levers or arms 6 (see Figs. 1 and 3),
located on opposite sides of the head A2 and having their pivot pin or shaft b²
supported in bearings in the head A2, the said levers having a hinge connection at
their. front ends with the collar a18, which is effected as hereinshown by providing
the ends of the levers 6 6¹ with holes, into which extend the studs a 20 a19 respectively.
The lever is provided as shown in Fig. 3, with an upwardly ex-
tended arm and with a rearwardly extended arm 6. The arm 63. of
the lever b carries a cam roll 65 (sec Figs. 1, 3 and 11) hereinshown as mounted on
a stud or pin 66, secured to the arm b³ by a nut 67, and having loosely mounted on

page_text: it, as shown, a grooved wheel or roll 68 fastened on to the stud 66 by a screw * and
with which engages the free end of a spring 69, shown as a wire rod having its
opposite end coiled about a roll 610, loose on a stud bolt 613, and provided with a
collar or nut 613 (see Fig. 11), having a slot or opening 6 into which the end of
the coil of the spring 69 is extended, to secure or fasten the spring to the nut 6¹³,
which bears against a flange 615 projecting from one side of the head A2, the said
adjusting collar or nut in the present instance having a series of peripheral
holes 616, into which a suitable rod may be inserted for turning the nut to adjust
the tension of the spring 6º.
•
The cam roll 65 co-operates with and is actuated by a face cam 617 (see Fig. 11),
which is properly shaped to effect the proper feed and insertion of the wire into the
stock, and to permit the spring 69 to return the sleeve a¹5 to its normal or proper
position for effecting the feed of the wire.
The cam 67 is fast on a shaft 619 having bearings as hereinshown in lugs or
ears 620, 621, on the sides 2, 3, of the head A2 (see Fig. 1) and the said shaft has fast
en it a gear 622 (see Fig. 4), which meshes with and is driven by the worm a fast
on the spindle at. In the present instance, the sleeve a¹5 is moved downward by
the portion of the cam 617 between the points 20, 21 (Fig. 11), and as the cam
revolves in the direction of the arrow 60 thereon, the lever g is turned, and the
arm 63 carried forward or in the direction of the arrow 40, Fig. 3, thereby rocking
the pivot pin 63 so as to move the arms 6 61, the collar a¹8,.and the sleeve a¹5 down
over the spindle a*, which movement continues until the point 21 of the cam passes
by the roll 65, at which time the downward feed of the wire stops, and the sleeve a¹³
is held stationary while the knives or cutters 630, 631 (see Fig. 4) are operated to
sever the wire as will be described When the arms b b are moved downward,
the collar a¹8 is moved downward and also laterally on the sleeve by reason of
its larger diameter than the sleeve 15, which lateral movement is due to the
arms bb moving in the arc of a circle with the pivot pin or rock-shaft b² as a center.
The cutters or knives 630 631 may be of any suitable construction and are secured
to cutter carriers 663 (see Fig. 9), which in accordance with this invention are
pivotally secured to the underside of the front portion of the head A³, by separate
pivots 634, 35, so that the said carriers may be located in substantially the same
horizontal plane. The cutter carriers may be suitably shaped at their front ends
to receive the cutters or knives 630, 631, which may be secured thereto by clamping
pieces or plates 66, 637 fastened by the bolts or screws 638 639. The cutter carriers
32 33 are beveled or inclined on their inner sides at their rear ends as at 640 641,
and are further provided with substantially straight portions 642, 63, with which
normally engage rollers 64 645, loose on suitable studs or pins 646 647 depending
from the end of a lever 650 pivotally mounted on a stud, bolt or pin 651, extended
through the head A2, the said lever having its other arm bent or extended
substantially at right angles to it as shown in Fig. 11, to bring it in line with its
actuating cam groove 654 (see Fig. 1), made in the periphery of a cam preferably
integral with the face can 617, the said groove having on one of its faces or walls,
a projection 655 preferably beveled as shown, and preferably made on a separate
hardened piece, which is inserted into the cam and screwed or otherwise secured
thereto. The beveled projection 655 is adapted to engage the beveled edge or end
of a hardened block or piece 660, secured to the end of the lever arm 653 as herein-
shown, by a screw bolt 661, and turn the lever 650 on its pivot 651, and thereby cause
the rollers 6 645 to travel forward against the inclined or beveled faces or
portions 640 641 of the knife or cutter carriers, thereby bringing the cutting edges
of the knives sharply and firmly against the wire, and severing the portion inserted
into the stock from the continuous wire. The knives are separated instantly after
doing their work, by springs 662 663 fastened. to the arms 6 of the head A3 and
having their lower ends engaging the said carriers, and in the present instance,
extended into grooves, slots or channels 664 665 in the said cutter carriers.
lover 650 is returned to its normal position by a spring 67 (see Fig. 1) encircling a
The

page_text: rod or bolt 671; extended through the lower portion of the head A2 and interposed
between the lever armi 653 and a shoulder 6 on the said rod, the said bolt being
adjustable by means of a nut 70 to regulate the tension of the spring 60
The return movement of the lever is limited by a back stop 65 shown as a
head on the end of a rod 676, the said head preferably having a buffer or cushion 6"
of rubber, leather or other suitable material. The head or back stop 676 is also
preferably adjustable with relation to the lever 60 by means of a nut 71, whereby
the back stop for the lever 650 may be properly positioned to regulate or limit the
return movement of the lever, and thereby prevent the said block 660 from striking
and injuring the cam 64. The antifriction rollers 4, 645, carried by the operating
lever 650 for the cutter carriers co-operating with the beveled sides or portions 640, 41,
of the said carriers, ensure a rapid operation of the cutters or knives with a
minimum expenditure of power, which facilitates the operation of the machine at
an increased speed, consequently facilitating an increased amount of work being.
done with a minimum amount of wear on the operating parts.
I have thus far assumed, that the spindle a is continuously revolving, which
may be accomplished by means of a suitable belt, not hereinshown, but which is
passed about the pulley a and over suitable idler pulleys 680, 68 loose on shafts or
studs 68, 682, extended from opposite sides of the head A2 as shown in Figs. 1 and 3,
the said belt being then passed under a pulley 683 fast on a shaft 68 supported by
the base A, the said belt also preferably passing between and in contact with
pulleys 683 686, loose on shafts or studs 687 88 (see Figs. 15 and 16), the shaft 7,3
being supported by a stationary bracket 680 attached to the framework of the
machine by a screw bolt 60, and the shaft 687 being supported by an arm 691, loosely
hung upon the shaft 688 so as to turn thereon, but adapted to be rendered stationary
in its adjusted position by means of a nut 692 on the shaft 688, by turning which the
hanger arm may be clamped between a shoulder on the shaft 88 and the
stationary bracket 689 The pulley 68 may thus be adjusted with relation to the
pulley 686 to take up the slack in the belt. The bracket 689 and the hanger arm br
may have secured to or forming part of them, oil cups 603 694 respectively, provided
with passages or ducts 695 6%, leading to longitudinal ducts or channels 607 68 in
the shafts 688 187, and the channels or ducts 97, 98 are extended to the periphery of
the shafts to supply the lubricant to the pulleys 686 85.
By reference to Fig. 4, it will be seen that the spindle a is not moved vertically,
and, therefore, in order to place the boot or shoe or other work to be united by the
screws cut from the continuous wire, in proper successive positions, the work support
or horn d, (see Fig. 2) is movable vertically with relation to the wire-carrying
spindle a The horn dis revoluble and is clamped or otherwise fastened to an
arm d', hereinshown as fastened by a stud bolt to a horn-supporting rod or
shaft mounted loosely in a bearing in an upright arm secured to or forming
part of the base A, the lower end of the horn shaft being connected, as will be
described, to a controlling or measuring device or apparatus to be described, by
which the length of wire inserted into the work or other material is automatically
governed by the thickness of the work supported on the horn below or in line with
the wire-carrying spindle. The measuring or controlling apparatus referred to,
consists as hereinshown, of a lever or arm (6 (see Fig. 14) mounted on a pivot, stud,
shaft, or pin, having bearings in the head A2, and connected by a link or rod d³
to one end of a lever or walking beam de (see Fig. 2), mounted on a pivot d¹o
supported as shown in a bracket or arm secured to or forming part of a cross
bar 15, which is secured to or forms part of the front legs a of the base A.
The lever 10 has pivotally attached to its arm 16, an internally threaded socket
piece or block, into which is extended the threaded end of à link or rod 18,
provided at its upper end with a head extended into a socket or opening (20 in
the lower end of the horn shaft . The lower portion of the socket 20 is provided
with screw-threads, which are engaged by a threaded sleeve or check nut 21, adapted
to fit over the rod or link 18 and provided with a head, which engages a flange
or collar preferably integral with the lower end of the horn shaft, the said flange

page_text: or collar supporting a washer 24 of leather or other suitable material, to deaden
the blow of the collar against the arm on the upward movement of the horn.
This connection of the headed rod 18 and the horn shaft by the check nut, is a
loose one, to enable the horn shaft to revolve freely, and at the same time, is a
positive connection to move the horn shaft longitudinally,
The connection of the horn shaft 3 with its operating lever, is accessible from
within and below the base, and permits the horn and its shaft to be quickly and
easily disconnected from the link or rod 18 for repairs or other purposes; for by an
inspection of Fig. 2, it will be seen that by unscrewing the check nut d, and then
disconnecting the rod d8 from the arm 16 of the lever do, the said rod may be 1
removed from the socket in the horn shaft d³, leaving the latter free to be dropped
down through the upright arm d', 'as soon as the stud bolt d³ is removed from the
upper end of the said shaft.
Referring to Figs. 3 to 14, it will be seen that the lever or arm is provided
en its side with a lug or projection do, downwardly beveled on its outer side or 1
face to co-operate with a correspondingly beveled lug or projection d³1, secured to
or forming part of the rear or back side of the arm 63 of the lever b, and made of
greater length than the beveled face of the lug or projection d, for a purpose as
will be described more specifically. Furthermore, it will be seen that the links or
rods d, da, being connected to the opposite ends of the lever
(see Fig. 2) move in opposite directions, and consequently when the
hern dis elevated into its highest position, the lever and its attached lug or
The elevation
projection are moved into their lowest position and vice versa.
of the horn d, is effected as hereinshown, by preferably two bent springs 40 made,
for sake of efficiency, simplicity, and cheapness, of wire rods bent into the form
shown in Fig. 2, and located on opposite sides of the depending bracket or arm
and having one end interposed between studs or projections d", on the
bracket, the other end of the said spring rods being extended under and into
engagement with grooved rollers or wheels 42, mounted on studs or arbors d³ on
the opposite side of a block or sleeve ", through which is extended the rod or
link dis, the said sleeve or block being movable on the said link or rod to regulate
the tension of the springs do,and being locked in its adjusted position by the
nuts 45, 46, located on the rod 18 above and below said adjusting sleeve. The
springs normally hold the horn elevated, and to depress the same, a treadle d50
is provided, which is mounted on the pivot 10 and has a rearwardly extended
arm d provided with a lug or projection 5, which is adapted to engage a lug №53
on the lever, and thereby turn the lever on its pivot when the treadle is
depressed, which action lowers the horn and permits the operator to place the boot
or shoe or other work on the said horn, after which the pressure on the treadle is
removed, and the springs 40 force the horn upward, until the upper surface of the
work comes in contact with a suitable surface, hereinshown as a plate d (see
Fig. 1) located below the cutter carriers in close proximity thereto and secured to
the head A2 as by a holt or screw (56 (see Figs. 3, 9 and 11).
When the horn d is depressed to place the work thereon, the lever and its
lug are elevated, and the said lug is moved upward away from its co-operating
beveled lug or block d³, on the wire-feed-operating arm 63 of the lever b; and when
the horn again ascends with the work on it, the lever and its lug 30 are
lowered, until the horn is stopped on its upward movement by the engagement of
the stock or work with the plate or it may be the cutter carriers, and at such
time, the lug 30 is placed in a position with relation to the lug d, as will permit
the arm 63 of the lever b to move backward toward the lug 30, a distance pro-
portionate to the thickness of the work on the horn.
It will thus be seen that the position of the back stop or beveled lug with
relation to the beveled lug on the wire-feed-operating lever b, is a variable
one, depending on the thickness of the work interposed between the horn and the
wire-carrying spindle, and that the position of the back stop'd30 determines the
length of the upstroke of the sleeve a¹5 and thereby determines the length of wire

page_text: inserted into the work. In other words, the back stop 30 co-operating with the
wire feed mechanism, constitutes à measuring device for the length of wire to be
inserted into the work, and this measuring device is automatically controlled by
the thickness of the work into which the particular portion of the wire is to be
inserted. If a thin portion of the work is interposed between the horn and the
'wire spindle, the. back stop is not raised so high, and presents its wider or thicker
upper portion to the lug d³, so that the latter will strike the back stop sooner,
than when a thicker portion of the work is on the horn, and con-
sequently the up-stroke of the sleeve a¹5 will be shortened, so that on its
downward movement, only a short length of wire will be fed into the work. This
variable feed of the wire is effected by the back stop 30 limiting the backward
or return movement of the arm 3, which places the roll 6 in variable positions
with relation to the feed operating cam 617, so that more or less of the cam surface
between the points 20, 21, will act on the roll and move the sleeve a
downward.
>
After a screw has been inserted into the work and severed from the continuous
wire, the work is fed forward a predetermined distance to place a new portion
into line with the nose piece a of the wire-carrying spindle a, and this feed of
the work is effected with the horn lowered away from the spindle head and its
plate d
The lowering of the horn, may and preferably will be effected by mechanism
as will now be described. 'The lever., which, as above described, is connected
to the horn d, has secured to or forming part of it at its outer end, a curved arm
or segment extended in an upward direction as hereinshown, and preferably
provided on its outer surface with teeth (see Figs. 3 and 14), the said curved arm
or segment moving in the are of a circle with the pivot of the lever do, that is the
shaft, as a center, the said segment or arm being shown as secured to the end
of the lever by a screw bolt c. The segment or curved arm chas co-operating
with it an arm preferably provided with a tooth or projection, and in the present
instance, acting as a push pawl, the said arm being pivoted as at in a lug or.
projection (see Figs. 3 and 14), and in the end of the lever, loosely mounted
un the shaft or pivot d and provided at its rear end with a stud or roller c
adapted to enter a cam path or groove e² in the side or face of a cam & fast on the
cam shaft and in the present instance, secured to or forming part of the
cams 617 the periphery of the cam being also shaped to form an operating
cam for the work-feeding mechanism as will be described.
The push pawl is adapted to be engaged with the segmental ratchet surface c,
by a spring fastened at one end to the lug or projection e, and having its other
or free end bearing against the back of the pawl.
The engagement of the push pawl with the segmental ratchet surface c, is
determined by a controlling device; hereinshown as a block or piece c¹³, (see Fig. 3).
preferably adjustably secured to the framework of the machine, it being shown in
Fig 3, as provided with a slot c", through which is extended a clamping bolt c..
The controlling block or device c is normally engaged by a crank or arm, c6,
fast on the pivot for the pawl 3, and when so engaged, the crank or arm is-
turned so that the pawl is held away from-or out of engagement with the ratchet
surface, thereby leaving the said surface free to move independent of the lever
or arm ya
The cam groove is properly formed and timed with relation to the other
parts of the machine, so as to operate the lever and turn it on its pivot d; so
as to move its long or pawl-carrying arm in the are of a circle as indicated by the.
arrow 80, Fig. 14, at or about the time the screw in the work is severed from the:
continuous wire.
16
On the upward, travel of this pawl-carrying arm of the lever, the crank or
arm'c 'is carried over the upper surface of the controlling block cuntil it passes
off from or out of engagement with said block, and, at such time, the spring clo
acts and throws the push pawl into engagement with a tooth of the ratchet

page_text: surface c, so that on the continued movement of the pawl-carrying lever in the
direction indicated by the arrow 80, the ratchet segment c and its lever de will be
moved as one piece with the pawl-carrying lever c³, which movement will be
continued until the point of greatest throw of the cam groove c' has passed by the
roller or stud c. As the lever is moved upward as described, the horn d is
moved downward to a like extent, away from the spindle head, thereby leaving
the work free to be fed forward a predetermined distance, to present a new
surface or portion of the work into which a screw may be inserted. When the
work has been fed forward a predetermined distance as will be described, the
cam returns the pawl-carrying lever back to its normal position, and on the
return movement of the pawl-carrying lever, the crank or arm c¹6 is again brought
back upon the controlling block, which operation turns the pivot against the
action of the spring clo, and disengages the pawl 2 from its co-operating ratchet
segment c, thereby placing the latter, and its lever de under control of the horn-
springs do, which move the said horn upward and the lever de downward, until
the work engages the guard. It will be seen that the downward movement of
the horn d against the action of its spring do, commences when the pawl c
engages the ratchet segment c to effect a positive connection of the horn mechanism
with the cam-operated lever, and that the extent of movement of the horn down
away from the wire-carrying spindle, depends upon the position of the controlling
block or device c¹³, which may be adjusted so that the crank or arm c¹ will remain
in engagement with it, a longer or shorter time, and thereby prevent the engage-
ment of the pawl c² with its ratchet segment, until the cam c8 has completed more
or less of its cycle, and as some operators may desire to have the horn lowered
more than other operators, the controlling device c¹³ is preferably made adjustable.
It will further be seen that, the block e constitutes the controlling device for
the positive connection of the horn mechanism with the cam mechanism, which
ultimately effects its downward movement to permit the work to be fed, which
may and preferably will be effected by a mechanism as will be described.
The work feed mechanism consists of a bar f (see Figs. 1, 3, 11, 12 and 13):
having its front portion located below the cutter carriers and provided at its end
with teeth or serrations fl to engage the work, and inclined in the direction it
is desired to feed the work, the said bar having its rear portion provided with a
rack bar f, which may be secured to or form part of the bar f, and which in the
present instance is shown in Fig. 13 as fastened to the bar f by a screw f³. The
rack bar f engages with a pinion f rotatable in a transverse opening in the lower
end of a lever f³, mounted on a pivot rod or shaft fo (see dotted lines, Fig. 1),
which is supported by the head A², the said lever having an arm f7 carrying a
roller, which bears upon and is operated by the peripheral cam c.
The roller carried by the arm fi on the work-feed lever f5, may and pre-
ferably will be held in engagement with the cam c9 by a spring f60 (see Figs. 1-
and 1) preferably a wire rod coiled about the end of the rock-shaft fo, and having
one end fastened to the head or frame of the machine, and its other end fastened
to an adjusting collar fol, fastened to the shaft fo by a threaded bolt f. In the
present instance, one end of the spring f is represented as inserted into a suitable 4
hole in the end of the head A³, and the other end into a suitable hole in the
collar f¹ By loosening the bolt fe3, the collar fol may be turned to increase or
diminish the tension of the spring f60, after which the collar. f61 may be rendered
fast to the shaft fo by tightening up the bolt f2.
The lever f5 is oscillated in a vertical plane in one direction, as hereinshown,
by the cam c, and in the opposite direction by the spring f60, which is permitted
to rock the shaft fo when the reduced portion fr of the cam c³ (see Fig. 14) is
brought opposite to the roller f8. The rocking of the shaft f6 by the spring,
effects the movement of the lever f³ so as to feed the work on the horn d, which is
carried forward by the teeth f¹ on the end bar of f, the said teeth being inclined 5
in the direction of the feed or movement of the work, so that they may slip back
over the work on the return movement of the bar f to its normal position, effected

page_text: by the full periphery of the cam acting on the roller f. This feed of the work
is timed with relation to the other operations, so that the work is fed forward
while the horn d is lowered, but so that the backward or return movement of the
feed bar f takes place at or about the time the horn has been raised so as to firmly
push the work against the guard d The forward movement or feed of the work
may be regulated by an adjusting device shown as a screw f75 (see Fig. 1)
extended through the side bar 5 of the head A².
and
The pinion may be rotated to adjust the bar f with relation to the horn d
and the work thereon, by a crank or handle f80 fast on the shaft f81 of the said
pinion, the said shaft on the opposite side of the 'lever f³ being encircled by a
between the lever
spiral spring f82 (see Fig. 12), interposed
adjusting nuts on the said shaft, the said spring frictionally
holding the pinion from moving and thereby holding the bar f in its adjusted
position.
The coil of the continuous threaded wire, from which the screws are made and
inserted into the work, and which is not hereinshown, as it may be of any suitable
or desired construction, is supported on a reel g (see Fig. 4) mounted on a sleeve gl
and rendered fast thereon by a threaded nut g2 screwed upon the threaded end of
the said sleeve, the said nut clamping the reel g between it and a head g³.on the
said sleeve. The sleeve g¹ and its reel are mounted to revolve on a stud bolt or
shaft g' supported in upright arms 95 96 secured to or forming part of the wire-
carrying spindle a. The reel g has one of its sides as g7 detachable, so as to.
permit the coil of threaded wire, not hereinshown, to be placed in position on the
reel, which may be accomplished by removing the shaft from its support g³, gº,
the nut 8 on the said shaft having been removed, then withdrawing the reel from
between the supports 95, 96, unscrewing the nut g² and removing the side g of the
reel. In order to prevent the formation of slack in the continuous threaded wire,
the sides of the reel are provided with suitable friction surfaces, preferably leather
washers 980, set into suitable recesses in the sides of the reel, and engaging the
upright arms of the wire-carrying spindle.
'
In order to permit the wire-feed mechanism, to be rendered inoperative, without
stopping the machine, so that the operator may place on and remove the work
from the, horn, a stopping device is provided for the said wire-feed mechanism,
which stopping device consists, as hereinshown, of an arm or lever h, (see Figs. 3,
11 and 17) pivotally mounted on a stud or pin h¹ in a boss or ear h² on the side 3
of the head A2, and supportng a latch-plate ht loosely mounted on the pivot pin h
and movable on the upper surface of the arm between it and the head of a
screw h³, which is inserted into the arm h, through a limiting slot in the plate
or arm h, the latter being pressed on one side by a spring h7, fastened at one end
to the arm has clearly shown in Fig. 17, which spring tends to keep the opposite
side of the plate h in engagement with a square or other projecting block or
lug h³, secured to or forming part of the lever 6 (see Fig. 3), when the arm h is
turned so as to bring the latch-plate h into engagement with the said block or
lug; which, by the movement of the lever b, is carried-upward above the plate h*
when the sleeve a15 is at its lowest position, thereby permitting the spring h7 to
move the plate h below or into the path of movement of the block or lug h, and
thus offer a solid abutment for the lug or block h, so that the lever b is held in
its lowermost position against the action of its returning spring b
The pivot stud or pin h¹ for the arm or lever h is adapted to be frictionally held
in any position into which it may be turned, by a friction brake consisting of a
shoe 60 adapted to engage the said pin or stud, and provided with a rod or stem h61
movable in a hollow. lug or. boss 62 on the ear h², the said rod being encircled
by a suitable spring 63 which bears against the said brake-shoe and against a cap
which closes the said hollow boss.
The arm h may and preferably will be provided at its front end with. a handle
or finger piece h10 for the convenience of the operator, and by which the lever or
arm h may be turned on its pivot, to remove the stopping arm or plate away from

page_text: or out of the path of movement of the block or lug h. It is evident that the plate h*
might be made a part of the lever h, but in this case the operator would have to
watch the machine until the lug or block has been carried above the plane' of
movement of the arm h, but by making the plate automatic in its action by means
of the spring and limiting its movement by the slot 6, the arm h may be turned
toward the machine with the block or lug in its lowered position,
and the sleeve in its elevated position, and as soon as the block
or lug was elevated above the plane of movement of the plate h*,
the spring would throw the said plate into the path of movement of the said
lug, and prevent its lever 6 being moved by the spring 69 back into its normal
position, so as to enable it to be again moved by the cam 6. The lever h is held.
in this position by the brake mechanism above described. When it is desired to
again start the feed of the wire, the lever or arm his thrown outward as described.
The machine hereindescribed, is designed and constructed to operate at a great
speed, to thereby increase the capacity or output of the machine, and its various
operative parts are reduced to a minimum, and made as positive as possible to
avoid frequent stopping of the machine due to breakage of parts, and on account
of the high speed of the revolving spindle a', I have provided the machine with
an enclosing casing or protective armor 3 for the wire-carrying reel, which
casing is made hollow or bonnet-shaped, having an open bottom to fit over the
reel and the upper part of the spindle a, and provided with a rearwardly extended
lug or arm 20, pivotally secured at 21 to a lug or upright erected from the
top 4 of the head A2. The head A2 is provided at its rear portion with an enlarged
reservoir 23 for the lubricating oil, which reservoir is adapted to contain a sub-
stantially large quantity of oil and communicates with the bearings for the
spindle a*.
-
The shaft 68 constituting the main shaft for the machine, may be driven in
any suitable manner, and is hereinshown as provided with fast and loose
pulleys 30, 31 adapted to be engaged by a driving belt, not shown, but which
may be transferred from the loose to the fast pulley, and vice versa, by a shipper
mechanism preferably of the construction hereinshown (see Fig. 2), and consist-
ing of an arm or lever 40 provided with a hub 1 loosely mounted, as herein-
represented, on a stud or bolt 43, secured in a bracket or lug 4 on a foot a of the
base A, the said stud having teeth or notches 450 (see Fig. 24) which are
designed to be engaged by a projection or tooth 47 on a block or piston h48,
movable in a hollow arm or cylinder 49 extended from the hub h".
The hollow arm 49 contains within it a spring 50, which serves to keep the
tooth in engagement with one or the other of the notches h5, h, and thereby
lock the shipper lever 40 to the stud or bolt 42, the said spring abutting against
a removable plug or cap 2 for the hollow arm h. The shipper lever has
secured to it a handle bar provided with suitable belt-engaging arms h4 155
As shown in Fig. 2, the belt may be supposed to be on the fast pulley h, and by
lifting the hanger bar 3, the shipper lever 70 may be turned on the bolt in
the direction indicated by the arrow 150, thereby removing the tooth 47 from
engagement with the notch and engaging it with the notch h; when the
shipper lever has been turned sufficiently to place the driving belt on the loose
pulley A reverse movement of the shipper lever again brings the belt onto
the fast pulley h
. By making the horn shaft rotatable, a longer bearing may be obtained and
employed to prevent vibration of the horn, and thereby reduce wear upon the
machine.
The friction mechanism or brake, acting on the pivot pin of the arm or
lever h, is, made sufficiently great to overcome the action of the latch spring, and
thereby prevent the latch spring from turning the lever on its pivot in a backward
direction, when the latch-plate engages the face of the block or lug h³.
result of this construction, the latch plate when brought into contact with the
face of the lug or block 9, is maintained in contact therewith and in position to.
As a

page_text: he thrown by its own spring into the path of movement of the said lug, when
the lever b is in its lowermost or proper position to permit such movement. The
head A2 as hereinshown is provided with an offset s (see Fig. 3) provided with a
suitable passage by which oil may be supplied to the bearings for the wire-
carrying spindle, and access may be had to the bottom of said passage by removing
a screw s
Having now particularly described and ascertained the nature of my said in-
vention and in what manner the same is to be performed I declare that what
I claim is:-
-
CLAIM.
1. A machine for inserting metallic fastenings into work, comprising a
supporting head, a rotating wire carrying spindle having bearings in said head,
wire feeding devices carried by said spindle, and an actuating mechanism for
said wire feeding devices consisting of a sleeve loosely fitted over and longi-
tudinally movable on said spindle, a pivot pin or rod 2 having bearings in the said
head and extended to the opposite sides thereof, levers fast on the said pivot
pin or rod on opposite sides of the said head, a collar loose on said sleeve and to
which the front ends of said levers are hinged at substantially diametrically
opposite points and on opposite sides of the head to guide the said sleeve in its
longitudinal movement on the spindle, a cam operating on one of said levers,
to effect the downward movement of the said levers, collar and sleeve,
means to move the levers in an opposite direction to lift and suspend
the collar and its connecting sleeve, a beveled or inclined measuring
surface on one of said levers, and a beveled or inclined back stop co-operating
with said measuring surface and having a sliding engagement therewith to limit
the backward movement of said lever, substantially as described.
2. A machine for inserting metallic fastenings into work, comprising a
supporting head, a rotating wire-carrying spindle having bearings in said head,
wire-feeding devices carried by said spindle, and an actuating mechanism for
said wire feeding devices consisting of a sleeve longitudinally movable on said
spindle and connected to the wire feeding devices to operate the same when moved
in one direction, a pivoted lever connected to said sleeve to operate it, a cam to
act on said lever, a beveled or inclined measuring surface on said lever, and a
beveled or inclined back stop co-operating with said measuring surface and having
a sliding engagement therewith to limit the backward movement of the said lever,
substantially as described.
3. A machine for inserting metallic fastenings into work, comprising a
supporting head, a rotating wire-carrying spindle having bearings in said head,
wire-feeding devices carried by said spindle, and an actuating mechanism for
said wire-feeding devices consisting of a sleeve longitudinally movable on said
spindle and connected to the wire-feeding devices to operate the same when moved
in one direction, a pivoted lever connected to said sleeve to operate it, a cam to
act on said lever, a measuring surface on said lever beveled with relation to the
pivot thereof, a back stop provided with a beveled surface co-operating with the
beveled. measuring surface of the said lever and movable with relation to the
beveled measuring surface to vary the backward movement of 'the said lever, a
work support or horn vertically movable with relation to said head and to
which said beveled back stop is connected to move simultaneously therewith to.
vary the position of the inclined back stop with relation to the inclined measuring
surface on the said lever, and means to return the lever in opposition to the said
cam, substantially as described.
4. A machine for inserting metallic fastenings into work, comprising a
supporting head, a rotating wire carrying spindle having bearings in said head,
wire-feeding devices carried by 'said 'spindle, and an actuating mechanism for said
wire-feeding devices-consisting of a sleeve longitudinally movable on said 'spindle

page_text: and connected to the wire-feeding devices to operate the same when moved in one
direction, a pivoted lever connected to said sleeve to operate it, a beveled or
inclined measuring surface attached to said lever, a cam to act on said lever, a
work-support movable toward and from the wire-carrying spindle, a beveled or
inclined back stop for the said lever connected to said work support to move
simultaneously therewith but in an opposite direction thereto, to place the said
back stop in various positions with relation to the beveled or inclined measuring
surface on the said lever, substantially as and for the purpose specified.
5. A machine for inserting metallic fastenings into work, comprising a
work support or horn movable in a substantially vertical plane, means to effect
the up-movement of the said work support, and means to positively effect its
downward movement and consisting of a cam, a lever or arm operated thereby, a
curved arm or segment, a lever to which said segment is attached connected to
the said horn to move simultaneously therewith, an arm movable with the cam-
operated lever and adapted to engage the said segment to place the horn under
control of the cam-operated lever, and means to control the engagement of the
said arm with the said segment, substantially as described.
6. A machine for inserting metallic fastenings into work, comprising a work
support or horn movable in a substantially vertical plane, means to effect the up-
movement of the said work support, and means to positively effect its downward
movement and consisting of a cam, a lever or arm operated thereby, a curved arm
or segment, a lever to which said segment is attached connected to the said horn
to move simultaneously therewith, an arm movable with the cam-operated lever
and adapted to engage the said segment to place the horn under control of the
cam-operated lever, and adjustable means to control the engagement of the said
arm with the said segment, substantially as described.
7. A machine for inserting metallic fastenings into work, comprising a
supporting base provided with a hollow upright, a horn shaft extended through
said hollow upright and rotatable therein, and provided at its lower end with a
socket internally screw-threaded, a connecting rod 8 provided with a head
extended into said socket, and a check nut or threaded sleeve fitted on the said
connecting rod and provided with external screw-threads to engage the screw-
threads of the said socket, substantially as described.
8. A machine for inserting metallic fastenings into work, comprising a
vertically movable work support or horn, a shaft to which it is secured, a lever,
a connecting rod joining said horn shaft and lever, a sleeve d¼ movable longi-
tudinally on said rod and provided with studs or arbors on its opposite sides,
grooved rollers mounted on said studs or arbors, means to lock said sleeve in its
adjusted position, and bent spring rods having one end anchored to a fixed support,
and their other or free ends engaging the underside of the said grooved rollers to
force the connecting rod and horn upward, substantially as described.
a
9. A machine for inserting metallic fastenings into work, comprising
rotating wire carrying spindle, wire-feeding devices carried by said spindle, and
an actuating mechanism for said wire-feeding devices consisting of a sleeve longi-
tudinally movable on said spindle and connected to the wire-feeding devices to
operate the same when moved in one direction, a pivoted lever connected to said
sleeve to operate it, a cam to act on said lever, and a wire-feed stopping device
co-operating with said lever and consisting of an arm or lever movable toward
and from the cam actuated lever, and a spring actuated plate or arm carried by
the said movable arm and adapted to be projected into the path of movement of
the cam-actuated lever, substantially as and for the
purpose specified.
10. A machine for inserting metallic fastenings into work, comprising a horn
or work support movable longitudinally in opposite directions, means to move it
ir. one direction, and means to move it in an opposite direction, consisting of a
pivoted lever provided with a segmental arm and to which the horn is connected,
a cam operated lever movable independently of the said pivoted arm, means
carried by the said lever and co-operating with the said segmental arm to effect

page_text: a connection between the said lever and segmental arm, and a controlling, device
to regulate the said connection and thereby the extent of movement of the said
horn, substantially as described.
11. A machine for inserting metallic fastenings into work, comprising a wire-
carrying spindle, a wire-feed mechanism, and a wire cutting mechanism consisting
of cutter carriers pivotally mounted on separate pivots in substantially the same
horizontal plane below the said spindle and provided with inclined portions 640 641
on one side of said pivots, cutters or knives carried by said carriers on the other
side of said pivots, a pivoted lever having one arm extended between said carriers
and movable toward the pivots of the said carriers in engagement with the
inclined portions 640, 641 to turn the cutter carriers on their pivots and engage the
knives with the wire and sever the portion inserted into the stock, and means
acting on the said carriers to return them to their normal position as the said
lever moves back on the inclined portions away from said pivots, substantially as
described.
12. A. machine for inserting metallic fastenings into work, comprising the
head A2 provided with depending front arms 6, a wire-carrying spindle having
hearings in said head, a wire-feed mechanism, cutter carriers pivoted to the
underside of the depending arms on separate pivots and having their rear arms
provided on their inner sides with inclined portions 640, 41, and with straight
portions 642, 43, cutters or knives carried by said carriers, a, cam-operated lever
pivoted to said head and having one arm normally in engagement with the
straight portions 62, 63 of the said cutter carriers and movable between the cutter
carriers toward their pivots in engagement with the said inclined portions to
act on the incline portions of the said carriers and cause the cutters to act, on
and sever the wire, and means to return the carriers to their normal position as
the arm of the lever travels back on the inclined portions of the carriers,
substantially as described.
13. A machine for inserting metallic fastenings into work, comprising a wire-
carrying spindle, a wire feed mechanism, pivoted cutter carriers mounted on
separate pivots in substantially the same horizontal plane below the said spindle
and having their rear arms provided with inclined portions 60, 641, and with
substantially straight portions 62, 63, cutters or knives carried by said carriers,
a cam operated lever normally engaging the straight portions 62, 643 and movable
between the said cutter carriers toward and from their pivots to travel up the
inclined portions of the said carriers to cause the cutters to act on and sever the
wire, springs to act on the cutter carriers in opposition to the cam lever as the
lever travels down the said inclined portions, and a bunter or back stop for said
cam lever to limit the backward movement of the said lever with its lower end in
engagement with the straight portions 642, 643 of the cutter carriers, substantially
as described.
14. A machine for inserting metallic fastenings into work, comprising a
supporting head, a wire-carrying spindle having bearings therein, a wire-feed
mechanism, pivoted cutter carriers mounted on separate pivots in substantially
the same horizontal plane and having their rear arms provided on their inner
sides with inclined portions, cutters or knives carried by said carriers, a cam-
operated lever pivoted in said head and movable between said carriers toward
their pivots in engagement with the inclined portions of the said carriers to cause
the cutters to act on and sever the wire, springs to act on the cutter carriers in
opposition to the cam lever as the latter travels back on the said inclined portions,
and an adjustable bunter or back stop for said cam lever, substantially as
described.
15. A machine for inserting metallic fastenings into work, comprising a wire
carrying spindle, a wire-feed mechanism, a wire-cutting mechanism consisting of
cutters or knives, pivoted carriers for said knives having their rear ends provided
with inclined portions, a pivoted lever having its lower arm movable in a substan-
tially vertical plane to act on the cutter carriers, and its other or upper arm

page_text: extended at an angle to said lower arm, and a cam to act on the said upper arm,
substantially as and for the purpose specified.
16. A machine for inserting metallic fastenings into work, comprising a wire-
carrying spindle, a wire-feed mechanism, a wire-cutting mechanism consisting of
cutters or knives, pivoted carriers for said knives having their rear ends provided
with inclined portions, a pivoted lever having its lower arm movable in a sub-
stantially vertical plane to act on the cutter carriers, and its other or upper arm
extended at an angle to said lower arm, a cam to act on the said upper arm, a
spring to move said lever in opposition to the said cam, and a stop to limit the
return movement of the said lever, substantially as described.
17. A machine for inserting metallic fastenings into work, comprising a work-
feeding mechanism consisting of a feed bar provided with teeth or projections to
engage the work, a supporting lever for said feed bar, means to move said feed bar
in said lever, a cam to operate said lever and effect the movement of the feed bar
in one direction, a spring to move said lever in an opposite direction, means to
adjust the tension of said spring, and an adjustable stop to limit the movement
of the lever in the direction to effect the feed of the work, substantially as
described.
18. A machine for inserting metallic fastenings into work, comprising a
hollow wire carrying spindle provided at its lower end with a socket, a hollow or
recessed head for said spindle having a hollow stem a8 inserted into said socket
and provided with a wall 14 provided with a longitudinal slot, feed rolls within
said head, a driving pinion or gear for the said feed rolls in line with the longi-
tudinal slot in the wall 14, a sleeve encircling the wire carrying spindle and loose
thereon, a sliding plate or bar a separate from the wire-carrying spindle,
attached to said sleeve to move therewith, dovetailed into the wall 14 of the said
spindle head, and provided with a rack bar a of less width than the plate a" and
extended into the longitudinal slot in the wall 14 of the spindle head to engage the
driving pinion for the feed rolls, and means to reciprocate said sleeve, plate and
rack bar, substantially as described.
19. A machine for inserting metallic fastenings into work, comprising a
supporting base provided with a head having mounted therein a wire-carrying
spindle provided at its upper end with a reel for a coil of wire, a bonnet or cap
pivotally secured to the said head to move in a substantially vertical plane and
adapted to fit over the said reel and the upper part of the said spindle, substantially
as described.
20. A machine for inserting metallic fastenings into work, comprising a
rotating wire-carrying spindle, a wire-feed mechanism, an actuating mechanism
for said wire feed mechanism consisting of a lever provided with an inclined or
beveled surface, and a cam to rotate said lever in one direction, a measuring
device for the wire feed mechanism consisting of a lever provided with an inclined
or beveled surface co-operating with the inclined or beveled surface on the said
wire feed lever and constituting a back stop therefor, and a work support or horn
to which the said beveled back stop is connected to move in opposite directions to
the said horn, substantially as described.
21. A machine for inserting metallic fastenings into work, comprising a wire
feed mechanism, a lever co-operating therewith, means to act on the said lever
to effect the feed of the wire, means to move the lever backward, a vertically
movable horn or work support, a back stop for the said feed lever movable with
the said horn and automatically positioned with relation to the said lever by the
thickness of the work acted upon, and mechanism normally disconnected from said
back stop but adapted to be automatically connected thereto, to move the said
back stop in the same direction it is moved by the work but independent thereof,
substantially as and for the purpose specified.
22. A machine for inserting metallic fastenings into work, comprising a
supporting base, a substantially vertical horn-supporting shaft rotatably mounted
in said base, a horn firmly secured to the upper end of said shaft, a lever, a

page_text: to engage the work, a lever to which said feed bar is secured, a cam to operate
said lever and move it in one direction, and means to act on said lever to move it
in the opposite direction, and an adjustable stop to limit the movement of the
lever in the direction to effect the feed of the work, substantially as described.
29. À machine for inserting metallic fastenings into work, comprising a
stationary head, an elbow lever pivoted thereto and provided with a beveled or
inclined surface, a horn or work support movable longitudinally in opposite
directions, means to move it in one direction, and means to move it in an opposite
direction, consisting of a pivoted lever provided with a segmental surface and to
which the horn is connected, an inclined surface or back stop attached to the said
pivoted lever and co-operating with the inclined surface on the elbow lever to
limit the movement of the said elbow lever in one direction, a cam co-operated
lever movable independently of the lever carrying the segmental surface, means
carried by the said cam-actuated lever and co-operating with the said segmental
surface to effect a connection between the said cam-actuated lever and the
segmental surface, and a controlling device to regulate said connection and thereby
the extent of movement of said horn, substantially as described.
MAYAY
of May
D. YOUNG & Co.,
11 and 12 Southampton Buildings, London, W.C.,
Agents for the Applicant.