Communicating MORE.
Year: 1887

page_text: Communicating MORE.
I, HENRY HARRIS LAKE, of the firm of Haseltine, Lake & Co., Patent. Agents,
Southampton Buildings, in the County of Middlesex, 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 improvements in sewing machines and to motor apparatus
for driving the same, and it consists in the construction and combination of devices
hereinafter described.
To enable the said invention to be understood I will describe a preferred construc-
tion and indicate the manner in which I have carried it out reference being had to the
accompanying drawings in which
Figure 1 represents a plan view of a sewing machine embodying my improvements
and showing a portion of the cloth or work plate removed.
Figure 2 is a side elevation.
Figure 3 is a longitudinal sectional view on the line ., . Figure 1 showing the
puculiar construction of the oiling chambers.
Figure is a sectional view of the tension device taken on the line y, y of Figure 1.
Figure 5 is a transverse sectional view of the same on the line w, wc of Figure 4.
Figure 6 is a sectional view on the line 1, 2 of Figure 1.
Figures 7, 8, 9 and 10 are details of construction, to be hereinafter referred to.
Figures 11 and 12 represent plan views of the motor embodying my improvements.
Figure 13 is a side elevation of the same.
Figure 14 is an enlarged sectional view on the line a¹¹ of Figure 11.
A represents the main casting of the sewing machine, consisting of a base plate u,
and suitable vertical posts or arms b, in which are mounted the several operative
mechanism comprising the machine.

page_text: The upper portions of the posts are connected together and are formed with an oil
chamber B, the purpose and construction of which is hereinafter described. It will
be observed the upper portions of the posts b, are so constructed as to form a horizontal
and an inclined section c, e¹, the point of juncture being at or near the longitudinal
centre of the posts. The cloth or work plate C is preferably formed in two sections
secured to the horizontal and inclined sections of the supports or posts b, in such
manner that the operator may readily adjust the work on the inclined sections and
beneath the pressure foot, leaving at the same time sufficient room over the horizontal
section of the work plate for the proper manipulation of the goods, a feature greatly
to be desired in tucking machines, to which my improvements are particularly adapted.
The driving shaft. D, is suitably mounted in studs d, d in the oil chamber B, and
is provided with the usual hand wheel B¹, eccentric B2, and at its forward end with
a suitable loop forming device. These features being of any approved form, it is not
thought necessary to minutely describe their exact construction and operation, except
the studs d, and the peculiar manner of automatically oiling the drive shaft, and
causing the surplus oil to find a ready passage to the oil chamber.
These features are readily accomplished by providing the studs d, d with vertical
passages or oil chambers e, in the bases of which are placed springs el, which auto-
matically feed the oil to the drive shaft during the rotation of the same.
The ends of
the oil chamber B, are practically closed by the plates which are arranged in close
proximity to the stud d, d' the upper surfaces of which are provided with grooves g
that intersect the passages or oil chambers e, and permit the surplus oil from said
chambers to find an easy exit to the main oil chamber B.
From this construction, it is manifest the rapid rotation of the drive shaft causes a
suction within the oil chamber e, which through the agency of the interposed springs el
draws said oil upward and lubricates the shaft. That portion of oil which escapes at
the top of the chamber e, will run into the grooves y, thence directly into the main oi!
chamber B, or else into the space between the studs and plates, from whence it
finally enters the main oil chamber through suitable passages or openings in the
lower portions of said lugs. I am thus enabled to cause an automatic lubrication of
the shaft, without heating the hearing, at the same time I confine the surplus oil
within the oil chamber B, and thereby prevent its coming into contact with the goods.
The eccentric B2 on the driving shaft is connected to an oscillating arm E secured
upon a rock shaft F, journalled within a vertical arm or post projecting from the
main casting. This rock shaft F has a hollow end into which the material is placed to
lubricate its bearing, said bearing consisting of a conical pin adjustably secured in
an arm on the main casting A. The shaft F at its centre is provided with a collar h
having a bearing in the post ', and is adjustable on said shaft by set screws, whereby
the wear of the parts may be taken up and a firm bearing always obtained for the
shaft. The needle arm G in the present instance is an inclined bent arm secured to
one end of the rock shaft and is so constructed that its straight arm is parallel or
nearly parallel with the inclined portion of the work plate, its forward end being bent
downward and is provided with the usual means for clamping the needle as shown.
The straight arm & of the needle arm is provided with a slot n and a loop o, the
purpose of which I will hereinafter fully describe in connection with the tension device,
with which they are clearly identified.
P
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The upper portion of the arm or post terminates in horizontal arms and in
the former of which is adjustably secured a horizontal shaft H, having a head I secured
thereto at right angles to the inclined portion of the work table and within which the
presser bar moves, the said head being provided with a spring which bears upon the
top of the presser bar to keep the presser foot against the work, the amount of pressure
being determined by a set screw s in the top of the head bearing against the spring in
the usual manner. A pint projecting from the upper side of the presser
through a slot formed within the head and between two plates u, u and is acted upon
by a came to raise the presser foot from the goods and to keep the presser from
turning.
bar extends
The continued movement of the pin t, within the slot between the plates, will

page_text: necessarily cause some wear at the point where the two features contact with cach
other, therefore some provision must be made to take up the wear thus occasioned.
To accomplish this feature I secure the plate a', in such manner, as by a slot and set
serew, that it may be adjusted to take up whatever wear is necessary and at the
same time secure the pin t, so that the presser foot will be held against lateral
displacement.
The lower end of the presser bar has secured thereto a plate 2 from which depends
a cylindrical stud 3 that passes through an oval or other elongated opening formed in
the upper portion of an arched plate 4, to the long arm of which the presser foot L is
secured. A pin 5 passes transversely through the stud 3 and plate 4 and serves as a
pivot which in conjunction with the slot in plate 4 enables the presser foot to have
a slight movement to adjust itself to any uneveness caused by an uneven wear of the
feed teeth. This feature is of great importance as it enables the presser foot to
automatically adjust itself firmly against the work at all times, and although some
portions of the feed plate may wear more rapidly than others yet the presser foot will
always adjust itself to such irregularity automatically.
The mechanism for changing the feed of the machine comprises a shaft 6 mounted
within the upper portions of the posts on arms band having secured to one end an.
arm or lever M, the outer end of which is bored to receive a set screw 7 having a
squared end adapted to receive a suitable key (not shown) whereby said lever M when
adjusted cannot be moved from its position, and the feed altered, without the employ-
ment of this key. The inner end of the set screw 8 passing transversely, through the
lever and through a slotted gauge plate N, secured to the upper portion of one of
the posts b, and engaging a nut or washer 9, as shown in Figure 1. By these means
it will be readily observed the lever M may be raised or depressed and the desired feed
has been obtained, the operator tightens up the screw 8, which clamps the nut 9 and
the lever firmly against the plate N.
As a matter of precaution and to prevent any possibility of the lever being moved
from its adjusted position and thereby affecting the feed of the machine, I introduce
the key before referred to, into the end of the lever, until it engages the square end of
the screw 7. A few turns of the key will cause said screw to bind tightly against the
transverse set screws, when the key is then removed and the feeding mechanism will
be found to be securely locked against displacement, and cannot be unlocked except by
again introducing the key and unloosening the screw.
The end of the shaft 6 opposite to that which carries the lever M, is provided with a
crank arm 10, having a pin 11, which projects through an elongated slot formed in
end of an arm 12, journalled upon a shaft 13, and having a pin 14, which is engaged
by the hooked end of a lever P, fulcrummed upon a stud projecting from the post
and having its short arms bifurcated to permit the passage of the driving crank shaft,
by which said lever P is operated to cause its hooked end to engage the pin 11, and
move the feed lever R, which is secured by a set screw to the shaft 13, and is provided
with the usual means for feeding the goods forward.
The feed lever R is cut away near its centre to permit the passage through the
same, of the driving shaft, which operates the lever to give the proper motion to the
feed. The driving shaft is confined within the cut away portion of the lever P, by a
plate 14 secured to said lever, in such manner that when the under surface of said
plate becomes worn by continual contact with the shaft, the same may be removed and
reversed, thus presenting a new surface to the action of the driving shaft.
The upper end of one of the posts b, is slotted at 15, to receive the shaft 13 carrying
the lever P, and is bored to forin an oil chamber 16, within which is placed a spring 17,
for feeding the lubricating material to the shaft. This oil chamber as well as those
for oiling the drive shaft may also be provided with wicks for assisting in raising the
oil. The shaft 13 being lubricated by means substantially like that which ejects
the oil from the chamber e, to lubricate the drive shaft whereby during the running.
of the machine, the shaft 13 is automatically and continually supplied with oil, the
action of the spring causing the oil to advance upward in the chamber sufficiently far
to thoroughly lubricate the shaft.

page_text: I will now describe the mechanism for controlling the needle-thread during that
period of the operation of the machine when the needle is on the downstroke, and
before the needle eye reaches or enters the goods. This tension mechanism is mounted
upon and within the horizontal arm », and comprises a lever S pivotted between
lugs 18 on the arm and with its short arm in engagement with a spring 19, in the
post to cause the long arm of the lever to be depressed. This latter arm is provided
with a threaded pin 20, passing through a threaded aperture in the long arm of the
lever, and a jan nut 21 which secures the pin after the latter has been adjusted. The
arm is provided with an opening for the set screw, and also with a stationary disc,
which forms the lower clamping plate, and between which and the upper clamping
plate or disc T, the thread is intermittently clamped. This upper disc or clamping
plate T, is loosely seated upon the lower disc, and is adapted to have a slight rotary
movement during the intermittent passage of the thread. It is provided with a conical
shoulder, which engages a correspondingly formed groove in the lower face of a
dise 22, secured or forming a part of a spring plate U, located directly beneath the
lever S, with its inner end secured to the post b. The outer or free ends of the
spring U, and lever S are perforated for the reception of a guide pin 23, projecting
from the horizontal arm R, while a screw 24 engages the spring near its rear end, and
is designed to increase or diminish the tension of the spring, and the consequent
friction between the clamping plate or dises.
As before stated the eccentric B on the driving shaft is connected by a pitman E¹
with an oscillating arm E upon the rock shaft F, and is provided with means such as an
arm 25 for raising the pin 20, and thereby releasing the thread, and also with an arm
or pull off 26 adapted to draw from the spool a sufficient amount of thread to
provide for the succeeding stitch. The operation of these features is substantially as
follows.
"
The movement of the drive shaft, through the agency of the pitman E' causes the
arm E, to oscillate in unison with the needle arm as these two elements are mounted
on a common shaft while the arm E, is making its forward stroke, the horizontal arm 25
engages the end of the pin on a washer interposed between said pin and arm and
raises the same.
As the pin is forced upward it carries with it, the long arm of the lever S, thus
depressing the short arm of said lever removing the pressure from the thread clamping
discs, and permitting the passage of the thread between said dises while the arm E, is
making its return stroke it causes the vertical arm 26, to engage the thread and
pull off a sufficient amount to supply the next movement of the needle arm.
Thus
«
I automatically give to the tension plates an intermittent movement and at the same
time I pull from the spool when the discs are clamped a sufficient amount of thread to
answer the desired purpose.
The thread from the spool passes through the guides 27, and 28 having the usual
eye, and provided with a slit 29, and projecting finger 30, between which and the
lower face of the guide, the thread is introduced, after which it readily finds the slit 29.
After passing through the guides 27 and 28, the thread is passed around a pin 30,
thence between the clamping dises, around pin 23 thence again between said dises to
a guide 31, projecting from the shaft H and thence to the needle.
The needle arm, as before described is provided with a slot n and loop o, said loop
serving as a guide to retain the thread on top of the needle arm.
On the shaft H, is adjustably secured what we designed as a thread retainer device
consisting of two plates 32 and 33. The latter being of less tenable strength than the
former, it yields to permit the passage of the thread between said plates during the
upward movement of the needle arm. The plate 32 is provided with a curved or
other depression 34 into which said thread is passed by the needle arm. Within this
depression between the plates the thread is thus temporarily held until the needle
passes through the goods, thus avoiding a loose stitch.
In connection with the above I employ a motor for running the machines.
Referring to figures 11, 12, 13 and 14, A' represents a suitable bed plate which is
designed to be adjustably secured to the floor, and is provided with uprights or

page_text: standard B™ in the upper portions of which the projecting ends of suitable lubricating
cups Care mounted. The inner ends of these cups are adapted to receive and support
the ends of a shaft D', in a manner and for a purpose hereinafter described. The
shaft D is provided with a pulley E", to which power is applied to operate the motor,
and with a large wheel F¹.
The wheel is divided to form two flanged sections a¹ each of which has a
projecting hub e and a set screw d by means of which the flanged sections a
may be adjusted upon the shaft to increase or diminish the speed of the machine.
A secondary shaft G¹ (see figures 11 and 12) is also journalled to rotate with the
inner ends of oil cups H mounted within the upright arms ell of a swinging frame J¹
each of said boxes being secured by a set screw, so as to be adjusted to take up the
wear occasioned by the running of the motor.
This secondary shaft G1, has mounted thereon a pulley K' the side portions of which
are bevelled, and adapted to pass between the flanged sections of the wheel F¹,
whereby said pulley Kis rotated by frictional contact with the wheel F¹. Secured to
the sanic shaft as the pulley K is a band wheel I, around which the band from the
sewing machine is passed whereby the speed of the motor is transferred directly to
the machine to operate the latter."
The oil cups and H' are substantially alike and are cach provided with chamber
for containing the lubricating material, and a passage g through which said material
escapes to lubricate the ends of the shaft. The material within the chamber being
protected from dust or other foreign matter by suitable covers in the upper portions.
of the cups.
As before stated the cups H', are mounted in a swinging frame, which it will be
observed is journalled upon a shaft which passes through the lower end of the
frame, and through suitable lugs projecting from the base plate.
From this description it is manifest the frame and its several attachments may be.
moved forward or rearward by drawing upon a rod or other connection m' attached to
a lever or projecting from the frame as shown in figure 13.
When it is desired to reduce the speed of the machine, the sections of the wheel F¹,
are expanded, as shown in Figure 12 and the swinging arm J¹, brought forward until
its pulley K' is engaged by the flanges a¹,
If the motor be set in position shown in this figure and, it is desired to increase the
speed of the machine, the operator will disconnect the motor which the driving
mechanism, release the connection m, and permit the pulley K' to be disengaged with
the wheel F. The screws are now loosened, and the sections of the wheel F¹
brought closer together. After they are secured in their new adjustment, the frame
is again brought forward until the pulley K engages the wheel F, when it will be
found the sewing machine is running at a speed, greater than at first.
In the employment of this motor I find it convenient to use a brake to limit the
backward movement of the frame. Therefore I pivotally secure between lugs p
projecting from the base plate a brake shoe M' which approximates the curriture of
the belt wheel L', and is provided with a downwardly extending arm, having a
threaded perforation through which is passed a screw s the inner end of which binds
against the lug and adjusts the brake shoe with relation to the adjustment of the
frame J, and pulleys.
From this description it will be seen the shoe may be adjusted within a close
distance to the wheel L', therefore when it is desired to change the speed of the
machine or to disconnect the motor with the sewing machine, the connection m³ is
released, when the spring t', attached to end of arm n will draw the frame and pulleys
from engagement with the driving wheel against the brake shoe without danger of
injuriously affecting the journals or other features.
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. The bed or work plate having a horizontal portion, and a position inclined

page_text: thereto, the throat plate being set within the inclined portion at the apex thereof, in
combination with a reciprocating eye pointed needle operating in a plane at right
angles to the plane of the inclined portion of the said bed plate, and complimentary
stitch forming mechanism below the said bed plate, substantially as herein described.
Second. In a sewing machine the main frame or casting A, having a horizontal oil
chamber formed in its upper surface, and the studs d d having vertical oil chambers e
and passages d², formed therein, in combination with the driving shaft, springs for
ejecting the oil from the vertical chambers, and the plates, forming between them-
selves and the studs d d', passages into which the oil passes to the main oil chamber
substantially as herein described.
Third. In a sewing machine, the combination with a presser bar of a presser foot,
the cylindrical stud 3, the plate 4, having an elongated opening for the stud and a
transverse pin 5 upon which said plate is pivotted, substantially as herein described.
Fourth. In a sewing machine the combination with the shaft H having the head I,
of a presser bar having a pint, projecting therefrom, the plate u, the adjustable plate u₁
and lifting cam ze, substantially as herein described.
Fifth. In a sewing machine, the feeding mechanism comprising the lever R, the
arms 10 and 12 in engagement with each other, the shaft 18, the lever P, having a
hooked end engaging a pin on the arm 12, and the main driver shaft, in combination
with a lever M for regulating the feed, a gauge plate, an adjusting screw for holding
the lever and a screw or bolt, having a squared end engaged by a key to hold the
adjusting screw and lever in a locked position, substantially as herein described.
Sixth. In a sewing machine, the rock shaft, the arm E, projecting from said shaft,
and the arm E and its operative mechanism, in combination with the horizontal and
vertical arms 25 and 26 on the arm E, adapted to cause an intermittent movement of
the tension, and to draw from the spool a predetermined amount of thread for the
succeeding stitch, substantially as herein described.
Sevent. In a sewing machine, the main frame or casting A, having the post bin
combination with a tension device consisting of a spring actuated lever S, pivotted to
a horizontal arm on the post, a horizontally arranged tension spring U, a stationary
clamping disc and a loosely mounted clamping dise, an adjusting pin 20 and the
arm 25, engaging said pin and adapted by power derived from the drive shaft to cause
an intermittent movement of the tension, substantially as herein described.
Eighth. In a sewing machine, a tension device comprising a spring actuated lever,
a horizontally arranged adjusting spring plate a stationary clamping disc and a loosely
mounted rotating clamping disc, substantially as herein described.
<
Ninth. In a sewing machine, the thread guides having the eye 2 "and the slot 29
intersecting said eye, in combination with a projecting finger 30 for guiding the
thread to the slit, substantially as herein described.
Tenth. The combination with its operative mechanism of a needle arm having a
thread guide O and slot n, of contiguous plates located immediately over said needle
arm, and having a depression between them into which the thread is automatically
passed by the needle arm, and temporarily held, substantially as herein described.
Eleventh. In a sewing machine, the main frame or casting A, having the post b¹, in
combination with the rack shaft F, mounted in said post and an oil chamber in one end
a needle arm at the opposite end of the shaft, an arm oscillating with said shaft, and
operating the tension and pull off devices, and an adjustable collar having a bearing
in the post, substantially as herein described.
Twelfth. In a motor, the base A', in combination with the shaft I', having the
wheel F, secured thereon and a swinging or pivotted frame J', having a secondary
shaft G, and a pulley K', operated by friction contact with the wheel FT substantially
as herein described.
Thirteenth. In a motor, a pivotted adjustable frame J' having a pulley K¹ and band
wheel L secured thereon, in combination with a sectional or expanding wheel F¹,
mounted upon a driving shaft and engaging the pulley to divide the band wheel I,
substantially as herein described.
Fourteenth. In a motor, the base A¹ having the standards B, a shaft D¹ mounted

page_text: in said standards and a driving pulley E, in combination with the wheel F consisting
of the sections a, 11, adjustably secured on said shaft, a swinging frame pivotally
secured to said base, and having a secondary shaft mounted in its upper end, a pulley K
on said secondary shaft engaged and driven by the wheel F', a belt wheel I', com-
municating power to the machine driven, and a means for moving said frame and
connections towards or from the driving shaft, substantially as herein described.
Fifteenth. In a motor, the combination with a base A' and a frame pivottally
secured thereto and having the wheels K' and I mounted thereon, of a brake
comprising the shoe M', pivotted between lugs on the main frame and an adjusting
screw s adapted to bear against the lugs to adjust the shoe, substantially as herein
described.
Sixteenth. The base A, the standards B, and the shaft D1, in combination with
the oil cups C, having passages g' and extended ends mounted in said standards, set
screws in the standards for adjusting said cups and removable covers for practising the
interior of the cups, substantially as herein described.
Seventeenth. The base A', the shaft G¹, and the frame J¹ pivotted to said base, in
combination with the oil cups H', having extended ends passing through the arms of
said frame and supporting said shaft, passages leading from the oil chamber to
the ends of the shaft, and set screws for adjusting said cups, substantially as herein
described.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C.,
Agents for the Applicant.