US1006801A

US1006801A - Automatically-threading loom-shuttle.

Info

Publication number: US1006801A
Application number: US56481110A
Authority: US
Inventors: Isaac Snow
Original assignee: DRAPER CO
Current assignee: DRAPER CO
Priority date: 1910-06-03
Filing date: 1910-06-03
Publication date: 1911-10-24
Anticipated expiration: 1928-10-24

Description

I. SNOW.

AUTOMATIGALLY THREADING LOOM SHUTTLE. APPLICATION FILED JUNE s, 1910,

1,006,801. Patented Oct. 24, 1911.

2 SHEETS-SHEET 1,

v WTNESSES NVENTOR I. SNOW. AUTOMATIGALLY THRBADING LOOM SHUTTLE. APPLIoATIoN FILED JUNE s, 1910.

1,906,801 Patented 0013.24, 1911.

2 SHEETS-SHEET 2.

' iww INVENTOR 3 i "y maa/Jaw? l 5 P ramena ernten.

ISAAC SNOW, 0F LAWRENCE, MASSACHUSETTS, ASSIGNOB TD DBAPEB. COMPNY, 0F HOPEDALE, MASSACHUSETTS, A CORPORATION 0F MINE.

AUTOMATCALLY-THREADING LOOM-SHUTTLE.

Speciication of Letters Patent.

Patented Uct. 2d, 19M..

Application led .Tune 8, 1910.' Serial No. 564,811.

rence, in the county of Essex and State of Massachusetts, have invented a new and Improved Automatically-Threading Loom- Shuttle', of which the following is a specification.

.l This invention lrelates to the automatically threading devices of shuttles which are used in looms wherein the weft is automatically replenished by ejecting the spent' shuttle makes its first traverse across the.

lay, the thread is drawn off from the weftcarrier within lthe shuttle owing to its end l being held. On the return traverse of the shuttle the thread is held by the selvage of the cloth. During these two traverses of the shuttle after receiving the fresh weft-l carrier the shuttle eye is automatically threaded. A loom of this character is disclosed -in United States Letters Patent of Northrop, No. 529,940, Nov. 27, 1894. In such looms it is important that the thread shall be surely inserted into the eye of the shuttle and that it shall not accidentally become displaced therefrom.

The present invention consists primarily in the automatic threading instru-mentalities of a loom shuttle which render Certain the automatic threading during the two flights of the shuttle following the reception of the fresh weft-carrier; and which prevent the accidental escape of the thread from the eye.

The improvements are illustrated in `the following drawings, in which- Figu-re l, is a perspective View of the eye end of the shuttle. Fig. 2 is a similar perspective View showing the eye end of the shuttle and the coperating threading instrumentalities detached. Fig. 3 is a cross section in the plane indicated Iby the line 3 3 in Fig. 5. Fig. 4, isa cross section in the plane indicated by the line 4-4 in Fig.

5. Fig. 5, is -a pla-n view of the `eye portion of the shuttle. Fig. 6, is a side view of the thread director. Fig. 7, is a horizontal sec` tion of a portion of the shuttle at the eye.

The automatically threading features of the shuttle are illustrated separately in Fig. 2, and comprise, structurally, appropriate passages formed in the body of the shuttle at its eye end forward of the usual chamber containing the weft; a block A, having a scroll D, for the reception and retention of the thread extending forwardly from the weft-carrier within the shuttle chamber; and a thread director E, F, G, which directsK the thread to 'the open slotted side eye n As shown in Fig. 2, the shuttle body has a thread passage J, at its forward or eye end communicating both with the weftc-hamber N of the shuttle and with the shuttlc-eye K.' This thread passage J, extends downwardly and divergingly from near `the shuttle-tip to the weft-chamber, and its side or guard wall a, remote from the side-eye K, inclines from the lweft-chamber toward the tip vofthe shuttle in a direction toward the eye wall, thus A.directing eyevvard the thread in contact therewith.

Near the intersection of the thread pas- `as shown in Fig. 3. This thread block A,

has a scroll D, within its thread slot, and above the scroll `the walls B, and C, of the thread slot are flared upwardly so as to fur# nish a wide flaring entrance or mouth to receive the xthread and to direct the thread into the scroll D. The scroll D, .is a separate piece of sheet metal and is turned in the appropriate direction .fto accommodate the whirl of the thread as it unwinds from the weft-carrier within the shuttle, so that the whirl of the thread tends to retain it within the eye ,c of the scroll. rihe point d of the scroll is above its bottom, so that when the thread is quiescent dil-ring the occupancy of the shuttle-boxes by the shuttle the thread does not tend to ,gravitate out of the scrolleye. During the :backward travel of the .sage d, with the weft-chamber of the shutshuttle on Iits first receiving a fresh 'weftcarrier 'the thread is drawn ed 'from the weft-carrier into the thread passage J, and

is guided'by the walls D, and C, and by the into the slotted side-eye K, of the shuttle by means of the thread director E, F, Gr. This thread director, as illustrated, is made of sheet metal and comprises the substantially horizontal guard E, the downwardly extendingr attaching wall M, the downwardly extendlng 4directing wall F, and the upwardly and outwardly extending guide wardly inclined direction nearly across the thread passage J and beyond the center line of the shuttle and hence. be ond the center of the scrolleye,.which is su stantially coincident with the central longitudinal axis of the shuttle. The inner lend of the guard E, is downturned at L, thus constituting a'.v downturned horn extending into the thread passage J. The upper surface of this horn is downcurved, as is likewise the opposite guard wall a, of the thread passage J, thus, affording asecond ring entrance for directing the thread into the thread assage J. Accordingly, during the first flight of the shuttle with a fresh weft-carrier the thread is drawn into the thread passage below the horn L, of the overhanging guard E. The leading edge f of the guard E, is inclined from the horn L, laterally toward the side-eye K, and rearwardly toward .the-A weft-chamber of the shuttle, iirst lgradually and then ymore abruptly, as shown 1 n Fig. 5. This edge merges into the forward edge of the directing wall F, which extends downs wardly laterally and rearwardly to the thread delivery eye'H, atthe bottom. This directing wall F, is in one piece with the guide finger I, which is' extended outwardly orwardly and upwardly, the thread delivery eye H, being formed at the union between the wall F, and finger I. The wall F, has at its forward lower edgea downwardly l extending spur G, which extends down nearly to the plane of' the center of the thread delivery eye H; During the second traverse of the shuttle after receiving a fresh weft-carrier, during which flight the eye end ofthe shuttle 1s advancing, the t read is guided by the forward edges of the guard E, and the,'directing w'all F, downwardly through. the passage between wall F, and finger I, into the thread delivery eye H, and concurrentl through 'the slot g,into the side-eye K, of the shuttle, which is laterally opposite the thread ldelivery eye H. It will be noted that the finger I, inclines outwardly and upwardly away fromthe wall F, and to the front wall 7L, of the shuttle forward of the slot g, to the side-eye,A so as to present a Haring entrance -for the thread to facilitate receiving the thread and directing it downwardly into thethread delivery eye H, and the side-eye K. This 'flaring entrance between .the finger I, and wall F, communicates with the slot g, leading to the side-eye K. At the same time, at its lower end wherey the linger I, is opposite the spur G, a narrow laterally located :entrance or throat of minimum width to thethread delivery eye H, is presented just sufficient'. Jfor the passage of the thread. Accordingly, the thread is directed certainly intothe thread delivery eye and hence into the side-eye of the shuttle; and at the same time the thread when once inserted is surely retained in place against accidental discharge. When threaded the thread extends laterally from the. eye of the kscroll D, across the forward face of the block to the delivery eye H, as shown in Fig. 7, and toget out ofplace it is necessary not only that it should escape forwardly and upwardly through the narrow passage between the spur G, and the linger I, but also that it should work its way out of the eye scroll D; and should it do both of these things vthe thread would still be beneath the guard E, and horn L, which would prevent any detrimental eii`ect. The inserted thread is hence thoroughly guarded against accidental escape.. The rear edge of the finger I, is between the side-eye K, and the spur G, and las far back as the point of the spur so that no draft on the thread tends to cause its escape.4 In passing from the eye of the scroll tothe thread holder H, the thread draws across a felt friction pad O, located in a slot of the shuttle body, and maintained in place by the guard E. It will' be noted that lduring both iiights of the shuttle the thread .draws against metal in passing out through the side-eye, since it draws either against the linger I, or against the juncture between said Anger and the directing wall F.

I claim: v Y

1. An automatically threading loom shuttle having a slotted side-eye; a thread passage extending from the weft-chamber forward of ,the side-eye and communicating with said chamber and side-eye, said passage inclinin -downand toward saideye from the point o the shuttle, and having its guard 'wall opposite'said eye inc-lining from the shuttle chamber toward said "side-eye; a

.block located in said thread passage between the side-eye and the shuttle-chamber having a thread slot with a flaring mouth;

a scroll in-said -threadslot below its flaringv mouth having a, thread-receivin eyev extending lengthwise and centrally o the shuttle; a thread-director comprising (a2` a lguard overhanging saidthread passage orward of said scroll and side-eye and having a down I ,turned horn at its free end near the guard wall of the thread passage and beyond thel iio - central longitudinal axis of the shuttle and having its front edge inclining rearwardly toward the side-eye, (b) a directing wall ex.- tending downwardly and outwardly from said overhanging guard to and opposite said side-eye with its forward edge downwardly and rearwardly inclined, and having a downwardly extending spur at its bottom, (c) a guide finger extending upwardly and outwardly from the lower edge of said directing wall to the front wall of said thread passage forward of said side-eye, thus providing a flaring entrance for the thread between said guide finger and said directing wall which at their union are formed with a thread delivering eye having a. narrow thread receiving laterally located throat guarded by said spur, the rear edge of said guide vfinger being between said spur and said side-eye, and (d) an attaching wall extle having a slotted side-eye; a thread pasl sage extending from the weft-chamber forward of the side-eye and communicating with said chamber and side-eye; and a thread-director comprising '(a) a guard overhanging said thread passage .forward of said side-eye and having a downturned horn at its free end near the back wall of the thread passage and having its front edge inclining rearwardly toward and back of the slot of the side-eye, (b) a directing wall extending downwardly and outwardly from said guard to and opposite said side-eye separa-ting said side-eye from the initial thread receiving portion of said thread passage and with its forward edge downwardly and rear- `wardly inclined, and having a downwardly extending spur at its bottom, (c) a'guide finger extending upwardly and outwardly from the lower ed e of said directing wall to the front wall o said thread passage forward of the slot of said side-eye, thus providing a free space to said slot and a flaring entrance for the thread between said guide finger and said directing wall which at their union are formed with a thread delivering eye having a narrow thread receivingv laterally located throat guarded by said spur, the rear edge of said guide finger being etween said spur and said side-eye, and (d) an attaching wall extending down from saidtle having a slottedA side-eye; athread pas-- l sage extending-from the weft-chamber forward of the side-eye and communicating with said chamber `and side eye; and a `thread-director comprising v(a) a guard overhanging said thread passage forward of said side-eye and having a downturned horn at its free end near the guard ywall of the thread passage and having its front edge inclinin rearwardly toward and back of the slot og the side-eye; (b) a directing wall extending downwardly and outwardly from said guard to and opposite said side-eye separating. said side-eye from the initial thread receiving portion of said thread passage and with its forward edge downwardly and rearwardly inclined, and having a downwardly extending spur at its bottom, and (c) a guide finger extending upwardly and outwardly from the lower edge of said .directing wall to the front wall of said thread passage forward of the slot of said side-eye, thus providing a free space to said slot and a flarin entrance for thel thread between said gui e'finger and saiddirecting wall which at their union are formed with a thread delivering eye having a narrow thread receiving laterally located throat guarded by said spur, the rear edge of said guide finger being between said spur and said side-eye.

4. An automatically threading loom shuttle having a slotted side-eye; a thread passage extending from the weft-chamber forward of the side-eye and communicating with said chamber and' side-eye; and a thread director comprising (a) a guard overhanging said thread passage forward of said side-eye and having its front edge inclining rearwardly toward the side-eye, (b)

a directing wall extending downwardly and outwardly from said guard to and opposite said side-(eye, and (c) a guide finger extending upwardly and outwardly from the lower end of said directing wall to the front wall of said thread passage forward of the slot of said side-eye, thus providing an entrance for the thread between said guide finger and said directing wall, which at their union are formed with a thread delivering eye having a narrow thread receiving laterally located throat.

5. Anlautomatically threading loom shuttle having a slotted side-eye; a thread passage extending from the weft-chamber forward of the side-eye and communicating with said chamber and side-eye; a thread director comprising a guard overhanging said thread passage and extending forward of said side eye; and a friction pad located in a slot in the shuttle body beneathsaid overhanging guard and in the path of the thread between said weft-chamber and said side-e e.

.6. n automatically threading loom shuttle having a slotted side eye; a thread passage extending from the weft-chamber forward of the side-eye and communicatin with said chamber and side-eye; a bloc located in said thread-passage between the side-eye and the shuttle-chamber having a thread-slot with a flaring' mouth;' a

sheet metal scroll in said thread-'slot below said flaring mouth having a thread-receiving eye extending lengthwise and centrally of the shuttle; a thread director forward of said scroll to direct the thread to said sideeye; and a friction pad in the path of the thread between said scroll eye and said sidee e.

y7. @An automatically threading loom shuttle having a slotted side-eye; a thread passage extending from the weft-chamber for-y ward of the side-eye and communicatin with said chamber and side-eye; a bloc located in said thread-passage between thel side-eye and the shuttle-chamber having'a thread slot with a Haring mouth; a scroll in said thread slot below its flaring mouth havnooaeor ing a thread-receiving eye extending length wise and centrally of the shuttle; "and a thread-director. comprising a guard'A overhangingA said thread passage forward of said scroll and side-eye and having a downturned horn at its free end Anear the guard wall of the thread passage and beyond the central longitudinal'axis 'of the shuttle and having its front vedge inclining rearwardly toward the side-eye, and a directing wall eX- tending downwardly and outwardly from Said guard to and opposite said Side-eye to direct the thread to said slotted side-eye.

In witness whereof, I have hereunto signed mynarne inthe presence 'of two subscribing witnesses.

' ISAAC SNOW. Witnesses:

. DUNCAN Woon,

JOHNy M. DUFFY;