Manufacture of Boots and Shoes.
Year: 1884

page_text: Manufacture of Boots and Shoes.
I, CHARLES FREDERIC GARDNER, of 1 Worship Street, Finsbury, in the County
of Middlesex, Merchant, do hereby declare the nature of my invention for
"IMPROVEMENTS IN SEWING-MACHINES, CHIEFLY DESIGNED FOR THE MANUFACTURE
OF BOOTS AND SHOES a communication from abroad by Charles Goodyear,
Treasurer of the McKay & Goodyear Sewing Machine Association, of Boston,
Massachusetts, United States of America, to be as follows:-
"
This invention relates to sewing-machines, chiefly designed for the manufacture
of boots and shoes.
The main object of the said invention is to provide an improved machine for
sewing the soles to the uppers of boots or shoes of the kind known as "turned
shoes," that is to say, shoes which are turned inside out and then lasted, and, after
the soles are sewn on, are again turned; and for sewing the welts on boots or shoes
manufactured on the so-called "Hand made" principle, that is to say, those in
which a welt is, in the first instance, attached to the upper, and the sole afterwards
stitched to the welt.
The said machine is of that kind which sews with a chain-stitch. It has a
curved awl and needle, and the mechanism for feeding the work forward as the
stitches are formed is that known as the awl-feed.
The principal parts of my improved machine are the feed-awl, the channel guide
or gauge, the needle-stock, the needle-shield, the looper, the holding spike, the
welt guide or gauge which carries the welt to the position necessary for sewing it
to the boot or shoe, the front guide or gauge, and the take-up, all of which are
hereinafter described in the order above named.
The said machine is made with a suitable frame provided with bearings carrying
a main shaft, upon which are fixed a series of cams for actuating the various
moving parts of the machine.
The cam for giving motion to the feed-slide is next the right hand bearing. The
said feed-slide works horizontally to and fro between guides formed on the frame,
and is operated by a lever of the second order, pivotted to the frame below the
said guides, and extending upwards over the slide. This lever is provided at its
free end with a roller which runs in the groove of the feed-cam. The part of the
[Price 87

page_text: lever which passes over the slide, is made with a longitudinal slot, in which is
inserted a pin for actuating the feed-slide. The said pin is capable of being fixed
in any desired position in the said slot and fits into a corresponding slot in the
feed-slide so that it can be adjusted either nearer to, or further from, the pivot or
fulcrum of the lever, to regulate the extent of the feed.
The feed-slide carries a bracket or block to which a lever carrying the channel
guide or gauge is pivotted. This lever is of the first order and extends upward,
and the channel guide or gauge is adjustably attached (by slots and screw-studs) to
the lower end of the said lever; its upper end carries à roller that runs on the
surface of a cam mounted on the main shaft next to the feed-cam. The said lever
is furnished with a spring to keep its roller in contact with the said cam. This
cam is so formed as to slightly lift or withdraw the channel guide or gauge from
the work, to permit the return movement of the feed-mechanism, after it has
moved the work forward a distance equal to the length of a stitch, preparatory to
making another forward movement. During this time, the needle is in the work
and holds the same so as to prevent its being carried back with the feed-mechanism
in the return movement thereof.
The feed-slide also carries on the said bracket or block a pivot upon which the
awl-lever works. This lever, which is of the first order and extends in the same
direction as the last named lever, is furnished at its lower end with an awl,
adjustable like the channel guide. Its upper end is formed with a jaw or open
ended slot, and, to permit the feed-movement, is made capable of sliding to and fro
upon a block mounted loosely on a pin or stud fixed in the forked end of a
vertically depending arm of a bell-crank-lever, which is pivotted to a bracket
attached to the main frame. The other arm of this bell-crank-lever extends
nearly horizontally towards the main shaft, and is provided with a roller which
runs in the groove of a cam on the main shaft, for actuating the awl-lever. The
fork of the bell-crank-lever is sufficiently wide to permit the to-and-fro movement
of the awl-lever due to its being carried by the feed-slide.
race.
The needle-stock is pivotted to the frame and is arranged to travel in a circular
It is provided with clamps to hold the needle, and is furnished with a pin
or stud whereby, through the medium of a connecting rod, it is coupled to the
lever that gives it motion. This lever is of the third order; it is pivotted at the
rear of the machine, and extends forward between two of the cams in a direction
inclining downwards; its free end is coupled to the said connecting rod. About
the middle of its length, the said lever is furnished with a bracket or projection
extending upwards, and carrying a roller that runs in the groove of the needle-cam
on the main shaft.
The pin or stud coupling the needle-lever and connecting rod is adjustably fixed
in a slot in the end of the said lever, so as to admit of a slight variation in the
length of the travel of the needle.
The needle-shield is placed concentrically with the needle-stock and is actuated
by stops upon the same, which act upon corresponding projections on the shield
and move it away from, and towards, the work at the proper times. A spring
couples the needle-shield to the needle-stock and serves to steady the said shield.
The looper consists of a short tube through which the thread passes; it is carried
on the lower end of a bent lever, which extends upwards and is vibrated on a
universal joint at the front of the machine by means of a cam. A spring is
provided which tends to hold the looper-lever against its cam. The upper end of
the looper-lever is furnished with three rollers, two of which ride on the periphery
of the said cam and the third (whose axis is at right angles to that of the other
rollers) runs in a groove in the said cain, This cam has a slight depression at one
part of its periphery, and its groove is suitably formed to give, in combination
with the said depression a circular movement to the looper.
$
The result of the action of the double cam is a movement of the looper suitable
to ensure the proper laying of the thread around, and into, the barb of the

page_text: Suitable guides are formed on that part of the frame that carries the needle-
stock-pivot, and a small bar is fitted. to work between these guides in a vertical
direction; the lower end of this bar is cranked or bent to extend in the direction
of the needle, so that the spike, with which its extremity is armed, and
which points downwards, may enter the leather as near as possible to the
needle. The object of this spike is to assist in sustaining the substance of
the leather against the stress of sewing. The said bar is fitted with a
rack, with which engages a pinion on a spindle passing through the frame.
This pinion imparts an up-and-down motion to the said bar. The said
spindle carries at one end a single-armed lever furnished with a pin or stud
to which a connecting rod is coupled. This connecting rod is made with a
longitudinal slot, into which projects a a pin or stud on the end of the lower arm
of another lever pivotted to the main frame. The extremity of the upper arm of
this lever is provided with a roller that runs in a groove in the cam next the left-
hand bearing of the machine. A spring couples the end of the connecting rod
with the pin or stud in the said lever and tends to draw it up against the rear end
of the slot. The action of these parts is such that the cam imparts a regular
up-and-down motion to the spike through the medium of the slotted connecting
rod, the pin being kept constantly against the rear end of the slot, but when the
spike meets with any obstruction by reason of the varying thickness and hardness
of the material, which frequently occurs in sewing boots, the said spring yields and
allows the pin to move in the slot, thus preventing the forcing of the spike too far
into the work by the invariable movement of the said lever.
The welt guide or gauge or welt-carrier is formed of a cranked arm, one end of
which is furnished with a suitably formed eye to receive the welt and lay it
properly on the work, the other end being fixed on a bar which slides between
guides formed on the frame. The direction of this sliding bar inclines slightly
downwards from the back to the front of the machine. A pin is fixed on the
right-hand side of the frame to hold up the free end of the welt and keep it out of
the way of the work, and guide it to the welt guide or gauge. The said welt guide
or gauge is required to approach, and press the welt closely against, the work while
the stitch is boing inade, and to retreat out of the way just before, and during, the
feed-movement. This alternate movement is obtained by means of a cam on the
main shaft actuating a lever pivotted to the frame and furnished with a roller
running in the cam-groove. The lower end of this lever is coupled to the slide by
means of a connecting rod, but, since from various well understood causes the
welt-gauge is constantly required to act at varying distances, the said connecting
rod has a slot and a spring acting on a pin or stud in the said slide in a manner
similar to that above described.
Immediately the feed-movement is completed, the welt guide or gauge is caused
to approach, and press against, the work and, as soon as the needle has terminated
its outward stroke, the said welt-gauge is securely locked in that position until,
the needle having retired and the awl re-entered the work, the machine is ready
to make a fresh stitch.
This locking is accomplished by means of a rack attached to the connecting rod
of the slide, with which rack a pawl on the end of a three-armed lever, pivotted
to the frame at the rear of the machine, is adapted to engage. The teeth of this
rack are so cut that, when the welt-gauge is drawn forward by means of the above
described cam and connecting rod as far as the work will permit, the pawl will
fall into engagement with one of the teeth and prevent its being forced back. In
order to lift the said pawl out of engagement with the rack, so that the welt-gauge
may be withdrawn at the proper time, the above named pawl-lever is made with
one of its arms extending upwards and furnished with a roller that runs in a groove
in one of the cams on the main shaft. By means of this cam, the lever alternately
lifts the pawl out of engagement, and permits it to engage, with the teeth of the
rack at the proper times. In order to regulate the movement of the welt-gauge

page_text: and the place in which it lays the welt, an adjustable stop is provided, against
which a pin or projection on the slide strikes.
In front of the machine, just below the path of the needlo, is a broad rest or
gauge, against which the work is held, this gauge is formed on the end of a bar
capable of sliding backwards and forwards between guides formed on the main
frame, and pressed outwards or towards the operator by a coiled or volute spring,
which acts upon it by means of a pinion and rack. But, during that part of the
revolution of the machine when the welt-gauge is locked as above described, this
front gauge must also be firmly locked in position. This is accomplished by means
similar to those employed to lock the welt-gauge, the same mechanism being used
in part to effect both objecta. The pinion working in the rack at the rear end of
the front gauge slide is provided with a ratchet wheel, with which a pawl pivotted
to the frame engages. This pawl is acted upon by the end of one arm of the
aforesaid three-armed lever. A suitable stop is provided to prevent the movement
of the front gauge too far backward. These two slides are thus locked and released
almost, if not quite, simultaneously. One spring is arranged to act upon both
pawls, and tends to draw them into engagement with the rack or the ratchet-
wheel,
At the rear of the machine is placed the "take-up," which consists of a lever
pivotted at one end to a bracket carried by the frame. On the free end of the
Baid lever is mounted a pulley over which the thread passes. The said lever is
pressed outwards by a spring and is prevented from being drawn too far back,
under the pressure of the thread, by an adjustable stop.
The thread passes through a pipe or tube from the rear of the machine to a
pulley at the front thereof, around which it is passed to the looper. The machine
is heated, for the use of waxed thread, by means of a jet of gas or a lamp placed
in the column underneath the head of the machine, and the heat is distributed
to the thread-roll and the sewing-point by means of pipes suitably fixed in the
frame.
Dated 1:00-13

page_text: $
Improvements in Sewing-machines, chiefly Designed for the
Manufacture of Boots and Shoes.
I, CHARLES FREDERIC GARDNER, of 1 Worship Street, Finsbury, in the County
of Middlesex, Merchant, do hereby declare the nature of my invention for
"IMPROVEMENTS IN SEWING-MACHINES CHIEFLY DESIGNED FOR THE MANUFACTURE
OF BOOTS AND SHOES and in what manner the same is to be performed, to be
particularly described and ascertained in and by the following statement :-
33
This invention relates to sewing-machines of the class described in the specifi-
cation of former Letters Patent dated 13th April, 1876, No.1564, that is to say,
machines designed to be used either for sewing the soles to the uppers of boots or
shoes in "turned" work, or for sewing on the welts in the manufacture of boots
or shoes according to the so-called "hand-made" principle.
In the accompanying drawings,
Figure 1 is a front elevation of the said machine.
Figure 2 is an elevation of the right-hand side, and
Figure 3 an elevation of the left-hand side thereof.
Figure 4 is a transverse section on the line x, x, Figure 1..
Figure 5 is a transverse section on the line x1, x' Figure 1.
Figure 6 is a side elevation shewing the awl-lever hereinafter described and parts
connected therewith.
Figure 7 is a side elevation, and
Figure 8 a front elevation, shewing the needle-stock and other parts hereinafter
described.
Figures 9, 10 and 11 show the needle-shield and other parts detached.
Like letters indicate the same parts throughout the drawings.
A indicates the frame of the machine, which is provided with bearings A' A' for
supporting the main or driving shaft B, upon which are fixed the cams hereinafter
described for actuating the several moving parts of the machine.
a is the cam for giving motion to the feed-slide b. This cam is fixed on the
shaft B next the bearing A³. The feed-slide 6 works horizontally to and fro
between guides 6' formed on, or attached to, the frame A, and is operated by a
lever b pivotted at 6* to the frame A. This lever is provided at its free end with
an antifriction roller which runs in the groove a³ of the cam a. The said lever is,
moreover, made with a longitudinal slot 63, through which extends a pin b whereby
the said lever is connected with the feed-slide b. This pin is capable of being fixed
in any desired position in the slot b³, by the nut 65 or other suitable means, and is
fitted to slide in a vertical slot in the feed-slide b. It can, therefore, be adjusted
either towards or away from the pivot or fulcrum of the lever 6s to regulate the
extent of the feed.
The feed-slide is provided with a bracket or block c' to which a lever c carrying
the channel guide or gauge d is pivotted. The said channel guide or gauge is
adjustably attached (by slots and screw-studs) to the lower end of the said lever;
the upper end of this lever carries an antifriction roller c³ which runs on the

page_text: surface of a cam e fixed on the main shaft next to the feed-cam a.
furnished with a spring c³ to keep its roller in contact with its cam.
The lever o is
The came is so formed that the channel guide or gauge d will be slightly lifted
or withdrawn from the work, by the spring c³, when necessary, to permit the
return movement of the feed mechanism, after it has moved the work forward a
distance equal to the length of a stitch, preparatory to making another forward
movement. During the return movement of the feed-mechanism, the needle is in
the work and holds the same so as to prevent its being carried back by the said
mechanism.
The feed-slide carries, by means of the bracket or block c¹, a pivot f¹ upon which
the awl-leverf works. This lever is furnished, at its lower end, with an awlƒ³,
adjustable like the channel guide d. Its upper end is formed with a jaw or open
ended slot f (Figure 6). ġ is a bell-crank-lever pivotted at g¹ to a bracket g²
attached to the frame A. A pin or stud g³ is fixed in the forked end of the
vertically depending arm of the said bell-crank-lever g, and on this pin or stud is
loosely mounted a block g', which is fitted to slido in the slot f' of the lever f.
The other arm of the bell-crank-lever g extends nearly horizontally towards the
main shaft, and is provided with a roller which runs in the groove h¹ of a cam h
on the main shaft, whereby the said lever g is caused to actuate the awl-lever. The
block g, and the fork of the lever g are (as shewn in Figure 1) made sufficiently
wide to permit the to-and-fro movement of the awl-lever with the feed-slide which
carries the same.
The needle-stock i is pivotted upon a pin or shaft firmly secured in the
frame A, and is arranged to travel in a circular race formed in a plate A¹ secured
to the frame A. It is provided with the ordinary clamps 3 to hold the needle **,
and is coupled by means of a connecting rod j¹ to the lever j which actuates it.
This lever is pivotted at 7 and extends forward between the cams e, h, in a
direction inclining downwards. About the middle of its length the said lever is
furnished with an arm extending upwards and carrying an antifriction roller that
runs in the groove e¹ of the cam e.
་
To provide for varying the length of the stroke or movement of the needle, and
thus regulating the length of the loop, the pin or stud j", which couples the lever j
to the connecting rod 1, is fitted in a slot ja in the said lever. The said pin or stud
can be adjusted in the slot jo towards, or away from, the fulcrum of the said lever,
and, when adjusted to any desired position in the said slot, can be fixed by means
of the screw-nut je or other suitable means.
The needle-shield k is also pivotted upon the pin or shaft ¹. It is arranged to
be moved, in one direction, by a shoulder on the needle-stock i acting upon the
lug or projection on the said shield, and, in the other direction, by a lever k³,
which is pivotted upon the shaft and acts upon a pin or stud / fixed in the said
shield. The lever is coupled to the connecting rod as hereinafter described so
that it will be operated simultaneously with the needle-stock. The motion of the
needle-shield k is limited by the stops on the head or collar of the shaft i,
which stops act in combination with the pin ³. The lever k² is coupled to the
connecting rod j¹ by means of a spring, which forms an elastic connection
between the needle-stock and the lever . This elastic connection is necessary to
permit the needle to move independently of the needle-shield when the motion of
the said shield is arrested by the contact of the pin with the stop . The said
shield remains stationary while the needle is passed through, and withdrawn from,
the work, and then moves back with the needle, in a manner well understood.
The lever can, if desired, be connected, by the spring, with the needle-stock,
"instead of with the connecting rod j₁ as above described.
The looper m consists of a short tube through which the thread is passed. The
said looper is attached to the lower end of a curved lever m¹ which is arranged to
vibrate on a universal joint at m³, by means of the cam has hereinafter described.
A spring m³ is attached at one end to the frame A and at the other end to the
lever m² and tends to hold the said lever against its cam, The upper end of the

page_text: looper-lever m¹ is furnished with rollers n', n³, which run upon the periphery of
the said cam, and with a roller n³, whose axis is at right angles to that of the
rollers n², n, and which runs in a groove h³ in the cam h.
This cam has a slight depression at h³, and the groove h³ is suitably formed to
act in combination with the said depression and impart to the looper a movement
suitable to ensure the proper laying of the thread around, and into, the barb of the
needle, as will be readily understood.
o is a small bar which is fitted to slide up and down in a groove or channel o¹
formed in the plate A¹. The bar o is cranked or bent as shewn, so that the spike o
at its lower extremity will enter the leather as near as possible to the needle. This
spike is designed to firmly hold the "between substance" of the leather as described
in the said former specification, and thus assist in preventing the displacement of
the work while the stitches are being made and the needle is being withdrawn
.from the work.
The said bar is provided with a rack or series of teeth o³ (Figures 3 and 7), with
which teeth engages a pinion p fixed on a spindle p² carried in bearings in the
frame A. On one end of the spindle p' is fixed an arm or lever p², to which is
coupled a connecting rod p³. This connecting rod is made with a longitudinal
slot p through which projects a pin or stud q¹ fixed in the lower arm of a lever q
pivotted at g* to the frame A. The upper arın of the lover q is provided with a
roller which runs in a groove r¹ in the cam r.
A spring 9 couples one end of the connecting rod p³ with the pin or stud q¹ and
tends to draw the latter against the rear end of the slot p. By these means au
elastic connection is provided between the bar o and its operating lever. A regular
up and down motion is imparted to the spiked or pointed bar o by the lever q
through the medium of the slotted connecting rod p³, the pin q' being kept against
the rear end of the slot 2, except when the spike meets with any resistance by
reason of the varying thickness and hardness of the material; the spring q² then
yields and allows the pin to move forward in the slot, thus preventing the forcing
of the spike too far into the work by the lever q, the movement of which is
invariable.
The welt guide or gauge or welt carrier 8 is a cranked arın, one end of which is
furnished, in the usual manner, with a suitably formed eye to receive the welt and
lay it properly on the work. The said guide or gauge is secured to a bar s³, which
slides between guides formed on, or attached to, the frame A. This sliding bar
inclines slightly downward from the back to the front of the machine. A bent
rod 8' is fixed in the frame A. to hold up the free end of the welt and keep it clear
of the work, and also to guide it to the said welt-gauge.
The welt-gauge is required to approach the work, and press the welt closely
against the same, while the stitch is being made, and to move away from the work
just before, and during the feed movement. This alternate movement is obtained
by means of a levert pivotted at t* to the frame A, and provided with an anti-
friction roller which runs in a groove t¹ in the cam h. The lower end of this lever
is coupled to the sliding bar & by means of a connecting rod ; but, since from
various well understood causes, the welt gauge is constantly required to act upon
materials differing in thickness, it is necessary to provide an elastic connection
between the bar 8 and its operating lever t. For this purpose the connecting rod ťa
is provided with a slot t³. A pin or stud is fixed in the bar and extends
through the slot t. This pin connects the said rod t² with the bar 8³. A spring t
is attached to the said pin or stud and to the lever t. This spring tends to hold
the pin or stud at the forward end of the said slot in a manner similar to that
above described with reference to the lever g and connecting rod p³. The lever t,
whose movement is invariable, will, therefore, move the bar & until the welt-
gauge presses against the work, and will then extend the spring t³, the bar s
remaining stationary. Immediately the feed movement is completed, the welt
guide or gauge is, by the means above described, caused to approach, and press
Against, the work. The said welt-gauge requires to be securely locked in this

page_text: position, while the stitch is being made, and until, the needle having retired and
the awl re-entered the work, the machine is ready to feed forward the work for
a fresh stitch. This locking is accomplished by means of a rack u attached to the
sliding bar 8. With this rack a pawl u¹ on the end of a three armed lever u*
pivotted to the frame at the rear of the machine is adapted to engage. The teeth
of this rack are so cut that, when the welt gauge is moved forward by the lever t
as far as the work will permit, the pawl u will fall into engagement with one of
the said teeth and firmly hold the said gauge against the work and prevent its
being forced back. In order to lift the said pawl out of engagement with the
rack and unlock the sliding bar s³, to permit the withdrawal of the welt gauge
from the work at the proper time, one arm of the pawl-lever u is extended
upwards and furnished with a roller that runs in a groove 72 in the cam r
(Figure 3). By means of this cam the lever u is caused to alternately lift the
pawl out of engagement with the teeth of the rack and permit it to engage there-
with at the proper times. To regulate the movement of the welt-gauge, and the
position in which it will lay the welt, an adjustable stop v is provided, which
consists of a bar held in position by a set-screw in one of the guides for the bar 8.
Against this stop a pin or projection on the sliding bar 8 will strike when the
said bar is moved forward to the desired extent.
In front of the machine, just below the path of the needle, is a broad rest or
gauge w, against which the work is to be held. This gauge is formed or fixed on
the end of a bar w, which is capable of sliding backwards and forwards between
guides formed in the frame A. The said bar is pressed outwards, or towards the
operator, by a coiled spring w³ acting upon it through the medium of a pinion w³
and a rack w secured to the said bar, so that, when the said gauge is pushed
inward by the operator, the spring w will be wound up or compressed. By its
reaction, this spring will force the said gauge outwards, when it is released.
During that part of the revolution of the machine when the welt gauge is locked as
above described, the gauge w must also be firmly locked in position to prevent its
being forced backward. This locking is accomplished by means somewhat similar
to those employed to lock the welt-gauge, the same mechanism being used in part
to effect both objects, that is to say :- The pinion w³ gearing with the rack w' is
provided with a ratchet-wheel w³. With this wheel engages a pawl w pivotted to
the frame A. This pawl is acted upon by the end of one arm u* of the lever u³ to
disengage it from the ratchet-wheel at the proper time. A pin or stud w' is fixed
in the bar w¹, which pin will come in contact with the guide w* and prevent the
movement of the gauge w too far forward. The two sliding bars & and w¹ are thus
locked and released almost, if not quite, simultaneously. A spring w³ acts upon
the pawls u, w and tends to draw them into engagement with the rack u and
ratchet wheel wº.
The "take-up" is placed at the rear of the machine, and the thread is conducted
therefrom through a pipe or tube y to a pulley y' at the front of the machine.
The thread is passed around this pulley and conducted to the looper m, as
described in the said former specification.
The machine is heated to adapt it for use with waxed thread by means of a jet
of gas or a lamp placed in the column underneath the head of the machine and the
heat is distributed to the thread-roll and the sewing point by means of pipes
suitably fixed in the frame.
When the machine is to be used for sewing "turned shoes," the welt guide or
gauge is removed, and a back gauge, similar to that heretofore used with " turned
work," is substituted therefor,
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
First. In a sewing-machine of the class above described, the employment (in
¿combination with the mechanism for operating the needle) of means substantially

page_text: as described for varying the length of the stroke or movement of the needle, for
the purpose specified.
Second. The combination of parts comprising the needle-stock i, the needle-
shield provided with the pins or projections k', e, the lever ² elastically connected
with the needle-stock, and the stops k', k³, whereby provision is made for the
proper relative movements of the needle and needle-shield, substantially as, and for
the purpose, set forth.
Third. The spiked or pointed bar o provided with rack-teeth and arranged in
combination with the pinion p which is fixed ou the spindle p² and is connected by
the arm p³, the rod p³, the spring q³ and lever q, or by other suitable mechanism,
with the cam r, substantially as, and for the purpose, set forth.
Fourth. The combination of parts comprising the slotted connecting rod to, the
pin or stud fitted to slide in the slot to, and the spring to, substantially as
described, whereby an elastic connection is provided between the sliding bar a and
its operating lever, for the purpose above specified.
Fifth. The combination, with the sliding bar w' carrying the gauge w and acted
upon by the spring w³, of the improved means comprising the rack w, the pinion w³,
the ratchet-wheel w³, the pawl w, and the lever u², for locking and unlocking the
said bar, substantially as, and for the purpose, set forth.
Sixth. The improved sewing-machine consisting of the parts constructed and
combined substantially as described with reference to the accompanying drawings,
and operating as, and for the purposes, specified.
Dat the 09.1 dan of T.l., 199K
HASELTINE, LAKE & Co.,
For the Aj plicant.