Year: 1889

page_text: 1 ELI WILLIAM BROADBENT of No. 261 Broadway in the City and State of New
York, United States of America, Merchant's Clerk, 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 :-
My improvements relate particularly to sewing machines for sewing quilted patterns
upon fabrics.
One feature of my improvements consists in providing a quilting machine with a
needle bar composed of parallel sections, and needles having heads arranged between
said sections, which needles are provided with flanges extending beneath the sections
of the needle bar; and in combining with this, clamping devices for securing the
sections of the needle bar together and gripping the needles.
Another feature of my invention consists in combining with a number of reciprocating
needles, a number of loopers, all of said loopers being mounted upon a bar, and
mechanism for imparting a longitudinally reciprocating motion to both the bar and
the loopers.
Another feature of my improvements consists in a needle bar provided with a
number of needles which are adjustably secured thereon, and a number of loopers
which are adjustably secured upon the bar, to which longitudinally reciprocating
motion is imparted.
A fourth feature of my improvements consists in so constructing the loopers which
co-operate with the needles, that they shall all have hooks extending approximately
parallel with the axis of the bar upon which they are mounted.
1 will describe in detail my improvements, and then point out the novel features in
claims.
In the accompanying drawings:-
:-
Fig. 1 is a front elevation of a quilting machine embodying my improvements.
Fig. 2 is a plan or top view of the same. Fig. 3 is a vertical section taken on the
line, Fig. 1. Fig. 4 is an end view looking in the direction of the arrow, Fig. 2.
Fig. 5 is a plan of one of certain loopers employed.
Similar letters of reference designate corresponding parts in all the Figures.
A designates a main frame of the machine. I have shown the same as broken away
in order to save space. B designates a main shaft from which the various parts of
the machine are driven. B¹ designates a needle bar. This needle bar is composed of
sections a a¹, extending parallel to each other. These sections are secured together
by means of clamping screws a³. Between the sections of the needle bar, the
needles a are secured. These needles are of peculiar construction, as seen more⚫
17

page_text: clearly in Fig. 3. Each has a top portion a*, which is, as shown, rectangular. Below
this top portion, the same is provided with horizontally extending flanges a. When
the needle is in position, the flanges a extend beneath the sections a a¹ of the needle
bar, and serve to maintain the needles in a true vertical position. The needles may
also be adjusted on the needle bar relatively to each other. The needle bar is mounted
upon a frame comprising uprights & and a cross bar 64, said frame sliding in vertical
guide-ways b³.
Upon the main shaft. B is mounted a gear wheel B2, which gear wheel meshes with
a gear wheel B³ upon a shaft B, extending lengthwise of the maching, and upon the
rear thereof. Upon the shaft B is another gear wheel B', which meshes with a gear
wheel Be, mounted upon a shaft B7 journalled in the main frame, and extending
approximately parallel with the shaft B. Upon the inner ends of the shafts B B' aro
cranks BB, which cranks engage suitably formed sockets or rests in the uprights b of
the needle bar frame. When the shafts B B' are rotatod, vertical reciprocating motion
will therefore be imparted to the needles.
CO designate feed rollers for the material to he quilted. The roller C is arranged
beneath the roller C¹, and is, as shown, continuous. It is journalled at its ends in
rocking supports D, which rocking supports are pivotted upon the base of the machine.
The rollers are rigidly mounted upon a shaft C³, which shaft is also secured, near
its ends, upon the rocking supports D. When a longitudinal to and fro movement is
imparted to the rollers CC, while rotating, the material passing between them will be
moved from side to side, so that the needles will form rows of zigzag stitching upon
the material. The roller has extending through it, and loosely secured thereto, a
shaft (, which shaft is journalled in suitable bearings in the frame. Said roller may
both slide upon the shaft, and revolve therewith. Noar its outer end, or in that
portion which is beyond the frame, said shaft bears a ratchet wheel Co.
Loosely hung upon the shaft is a pawl carrier C, which pawl carrior carries a
spring-actuated pawl C7, adapted to act upon the ratchet wheel (, in order to rotate
the latter and the shaft C. Upon the main shaft B is an excentric C, from which
extends an excentric rod C, having a pivotal and slotted connection with tho pawl
carrier Co. As the shaft B is rotated, the excentric rod will be moved
longitudinally, thus causing a rocking movement of the pawl carrier (", by which
the ratchet wheel C will be rotated. By means of the slotted connection between
the excentric rod 0° and the pawl carrier 06, variations in the throw of the pawl
carrier may be obtained, whereby the speed with which the material will be fed
between the rollers CC may be varied at pleasure.
I have shown a stop pawl e mounted upon the frame A, and engaging the
ratchet wheel C in a well known manner, The shaft C has mounted upon it a
goar wheel C, which meshes with a gear wheel C upon the shaft C, upon which
the feed rollers ( are mounted. Rotary motion is therefore imparted from the
shaft C to the shaft C, and the feed rollers rotate in unison.
Side to side movement of the feed rollers is accomplished by means of a bar E,
connected, near one end, with one of the rocking supports D. Near its other end,
said bar bears upwardly extending rollers e. Between those rollers is arranged a
cam E, here shown as a heart cam. Said cam is mounted upon a shaft E
journalled in bearings on the main frame. Upon said shaft is mounted a worm
wheel E³, which worm wheel engages a worn upon the main shaft B of the
machine. When the shaft D is rotated, the cam E¹, by means of its contact with
the rollers e, and its conformation, will cause a to and fro movement of the bar E,
and consequently a to and fro movement of the feed rollers CC. Upon the upper
side of the frame A is mounted a frame F, upon which are arranged a number of
spindles for receiving spools of thread. The thread from the spindles pass through
tension devices F, which may be of ordinary construction, thence through suitable
apertures in a guide plate F², and from thenco to the needles.
I will now describe the means by which the loop is formed upon the under side of
the material being quilted, prefacing the description by the remark that the invention
relates to single chain stitch sewing.

page_text: G designates a bar or shaft adapted to be slid to and fro in suitable bearings upon
the main frame A. Upon this shaft are mounted any desired number of loopers g,
each of which loopers co-acts with a needle to perfect the stitch. The form of those
loopers is peculiar. They comprise upright portions g', and hook portions g², which
hook portions extend approximately parallel with the axis of the bar G, so that no
rocking motion is necessary in the loopers, all the movement they receive being a
bodily movement in the direction of the width of the macbino, due to the reciprocation
of the bar G. Reciprocating motion is imparted to the bar G in one direction by
means of a lever G₁, fulerumined upon a stud g³, mounted on a projection extending
from the frame A. The lower ond of the lovor G¹ is pivotally connected to the bar G.
The upper end thereof bears a roller or bowl g', which roller or bowl boars upon the
face of a cam G³, rigidly mounted upon the shaft B. As the shaft B is rotated, a
rocking motion is imparted to the lever G¹, which rocking motion moves the bar G
longitudinally in one direction, carrying with it all the loopers g. Longitudinal
movement is imparted to the bar G in the other direction, as here shown, by means of
a coil spring G³, surrounding the bar G, and bearing at one of its ends against a
portion of the frame A, and at the other ond against a collar g³ secured upon the
bar G.
It will be observed that the loopers g are adjustably secured upon the bar G, each
being secured thereto by means of a clamping screw 9. By this means, the loopers
may be adjusted upon the bar into any desired position in which they will co-operate
accurately with their respective needles.
I have shown a pressor bar H, which presser bar is mounted upon uprights h
adapted to slide in slide ways hi, which form part of the slide ways 6. Collars
surround the bars ¹, and aro connected with a cross-bar. Between the
collars 10 and the bearings h, are arranged coil springs h, tending to hold said presser
bar against the material being quilted. Upon the needle bar B', are arms h³, which arms
extend into such position that, when the needle bar is raised, they will contact with
the cross bar h, and so elevate the presser bar to admit of the forward feed of the
material.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is
1. In a quilting machine, the combination with a needle bar, composed of parallel
sections, of needles having heads arranged between said sections, said heads boing
provided with flanges extending beneath the sections of the needle bar, and clamping
devices for securing said sections together, substantially as specified.
2. In a quilting machine, the combination with a number of reciprocating needles,
of a number of loopers, a bar upon which all said loopers are mounted, and mechanism
for imparting a longitudinal reciprocation to said bar and loopers, substantially as
specified.
3. In a quilting machine, the combination with a needle bar, of a number of needles
adjustably secured thereon, a number of loopers, a bar upon which said loopers aro
adjustably secured, and mechanism for imparting a longitudinal reciprocation to said
bar, substantially as specified.
4. In a quilting machine, the combination with reciprocating needles, of a looper
bar, a number of loopers arranged on said bar, all of said loopers having hooks
extending approximately parallel with the axis of said bar, and mechanism for
imparting a longitudinal movement to said bar, substantially as specified.
Dated this 19th dose of Mosch 1880