US1238542A - Shuttle. - Google Patents

Description

A. F. MCCOLLUM.

SHUTTLE.

APPLICATION HLED JUNE 2a. 191s.

l v Patented Aug. 28, 1917.I

l"llblli,llED i ESTATE@ l PATENT AIiRED F. MGGOLLUVI, 0F BLOOMSBRG, PENNSYLVANIA, ASSIGNOR OF THREE-FIFTHS T0 JAMES MAGEE, 2D, OF BLOOIVISBURG, PENNSYLVANIA.

SHUTTLE'.

Specification of Letters atent.

Patented aug. es, reir.-

` i Appnc'ationiea June 28,1916. semaine'. 10eme;

To all whom t may concern.'

Be it known that I, ALFRED F.V MCCOLLUM,

.a citizen' oil the United States, residing in Bloomsburg, Columbia county, Pennsylvania, have invented a Shuttle, ot ivhich the following' is a specification.

@ne object of this invention is to provide a novel form of shuttle, particularly ofthe type used in webbing' or ribbon looms, Whose construction shall besuch as to eectually prevent the heavy pull on or breakage of theyarn in case it slips off of either end of the bobbing the invention contemplating a construction especially designed to facilitate the insertion and removal of said bobbin from they shuttle.

Another objectot the invention is to'provide a shuttle with a novel form of bearings whichI shall be so proportioned that the bobbin is free to slide longitudinally in opposite directions and by reason of this a'ction, alternately disengage its supporting spindles` as the yarn unWinds, thereby per-v mitting the free delivery of said yarn in case it shoulds become so loosened as to' allow one or more turns tov come oli over the end of the bobbin.

' I further desiretoprovide a shuttle of the type noted with a novel; form of bobbin-supporting means inclnding ai spindle and anv open hearing for each end of theV saine, together With a n'ovel constructiony and arrangenient of parts for permitting` of the rapid threading of saidl shuttle.

These obj ects-and other a'dvantageolis ends I secnre as hereinafter set forth, reference being hadj tothe accompanying drawings, in which:` y i i Figure ll is aside elevation of a shuttle constructed according to my invention g l ,Fig. 2 is af vertical sect-ion on the line 2&2, Fig. l; l

Fig'. 3 is a planv of apart of the topoii the shuttle frame showing it as equipped with my quick threading device; and

Figi-1l is a perspective View of thebush# ing or' eyelet for guiding the yarn as it passes from the bobbin.

In t-he above drawings l represents the Wooden frame or body ot-a shuttle which inplan isoztl a substantially semi-elliptic outline, vhav-ing an elongated opening in lwhich t-he bobbin w' is rotatably inoui'ited.-

The base member of the frame is formed With the customary elongated guldeway? Q on one side and with toothed rack 3 at the opposite side, thereV being also a porcelain or glass eyelet or opening all 'forming a yarn guide and set in the central portion of the top member of said fr-ame;

`As shown in Fig. 3 this eyelet is made in the form of a flattened ring l1. having an inclined cut oi' passageway in one side, and the adjacent part of the shuttle frame likewise has through it an inclined cut or slot 12l registering with and i-orniing a continuation of the cut 13 in said ey'elet.` Mounted in a. shallow slot orl depression' 'to one side of the eyelet 4 and extending longitudinally oi the frame across the upper end ot' the slot 12 is a spring keeper in the forni of a resilient Wire M vlixedly held tothe frame l at one end and free at the opposite end. y

The bearings for the support oi" thebobbin ,t consist of two` cylindrical cuplikestructures" and* 6 niadc ot' sheet metal and more or less yieldingly supported by a strip metal piece 7 extending bet-Ween them but rigidly held to the base member oil the sh`u`ttle by screws a's shoivn. Each of these bean ing shells is cut away atone side to permit of the easy introduction of the bobbin and they are'such a` distance apart that when one endl of the bobbin is in engagement `with the end* of the beariiig 6 for example, the opposite endl ofsaid bobbin eXtends a short distance `Within' thes'econd shell The! bearings have relatively short tapered spindles or pintles S and 8l projecting t'oivard each other from their ends and their lengths are suchA that when the bobbin lies" fully Within one of the bearings, against the end* thereof, its opposite en'd is spaced some distance away from' the pointed' end ot the spindle; in

the other bearing, although itis rotatably carried by the latter bearing structure.`

Any suitable braking o1' retarding devicel may be used on the bobbin and this in the present instance alsoassists in holding said bobbin in* its bearings.v In* the case illustrated `said devi'ceconsists of a rod 9 extending across the opening in the shuttle'adjacent onev side of the baise andcarrying a plate l0 yieldingly engaging the yarn at about the middle part of tllerbobbin, under the action of a `spring ll coiledf oni tli'e rod Q'and acting' upon saidlplate. y

Under conditions of use as the yarn is drawn outV of the shuttle and unW'inds from the lei't hand side of the bobbin for example, the pull of said yarn causes said bobbin to'move to the. right so that the right hand spindle or pivot 8 enters its central longitudinal passage and rotatably supports lits right hand end, holding it from engaging the bearing shell 6. If while the yarn 1s being delivered, one or more of its coils adjacent the left hand end should become loosened and slip off over the same, no increase in the tension of said yarn would result nor would ,thereA be any tangling, since there is a space between the end of the bobbin and the spindle 8n through which such coils could freely pass. lhen the yarn so far unwinds from the bobbin as to passl the middle thereof and begin to feed from the right hand end, its tension causes the bobbin to move longitudinally to the left so that lits left hand en'd is rotatably carried on the spindle 8a while its right hand end is rotatably supported `by the bearing 6, some distance away from the spindle 8, with the same advantages as noted in connection with the spindle 8a. y

Obviously the bobbin may be removed with the utmost ease and in a minimum time, since for this purpose it is merely necessary to raise `the plate l0 and after lifting the bobbin out of one of its bearings 5 0r6, to slide it off of the short spindle 8' 0r 8a. A `filled bobbin may likewise be placed in the shuttle with the greatest convenience since after the plate 10 has been drawn out, one end of said bobbin may be placed in one of the bearings 5 or 6 with the spindle thereof projecting into its central passage, after which the opposite end may be' dropped into the other bearing and the plate l0 released. The yarn is then pressed into the slot l2 and, while the bobbin is held, drawn against theretaining keeperlt, which is thereupon raised to permitsaid yarn to pass under it into the eyelet L Gbviously said keeper eflectually serves to prevent escape of the yarn from the eyelet, although it may be omitted without departing from my invention, in which case the overhanging ends of the 'eyelet are depended on to perform the same Jfunction. As a result of the use of my construction the speed of operation and capacity of the loom are increased,V especially since there is no time lost by thel possible dropping of the long spindle which has heretofore been used to rotatably support the bobbin in shuttles of the class illustrated. Moreover by means of the peculiarly formed eyelet 4 and its associated parts, an additional time is saved in threading the shuttle.

Another important advantage of my invention arises from the decreased number of breakages of the yarn and the lessened time during which the loom is out of service, for by permitting the loosened coils of the yarn to freely pull away from the bobbin instead no tendency to break the sameA c Y of wrapping around a'spindle, there is prac-l tically constant tension on said yarn with I claim l. The combination in a shuttle of a frame', and two bearings carried thereby in positions to rotatably support a bobbin while permitting longitudinal movement thereof in the frame; with means for rotatably supporting the bobbin in the shuttle independently of said bearings.. y il 2. The combination in a shuttle gof a frame;

and two cup-shaped bobbin-receiving b`earings each open at oneside ofsa'id frameto permit of the removal of the bobbin and spaced with their ends a greater distance apart than the length of the bobbin; with means for rotatably supporting either end of the bobbin in the shuttle independently of said bearings. v .n w-

3. The combination in a shuttle of a frame; two bearings mounted thereinin positionsto rotatably support a Ybobbin and spaced to permit movement of said bobbin longitudinally of the frame; with short spindles fin the bearings respectively in positions to rotatably support the bobbin. q

4. The combination in a shuttle of a frame two bearings mounted therein in positions to rotatably support abobbin and spaced to permit movement of said bobbin longitudinally of the frame; with short spindles in the bearings respectively in positions to ro'- tatably support the bobbin, the length of the bobbin plus the length of either spindle being less than the distance between the ends of the bearings. 5. The combination in ashuttle of a frame; two open sided bearings therein; .and spindles for the bearings; the distance between the ends of the bearings being greater thanl the length of a bobbin and the distance be` tween the end of either bearing and the adjacent edge of theother bearing being less than the length ofthe bobbin. i l

\ 6. The combination in a shuttle'of a frame having an opening and provided with ayarn guide leading therefrom; cup shaped bearings mounted at opposite ends of the opening with their ends at a greater distance apart than the length of the bobbin used in the shuttle; and relatively short' spindles mounted in the bearings respectively in positions to enter and support the ends of said bobbin as this is alternately moved in opposite directions in the bearings by the pull of the-yarn passing through the yarn guide.

7 The combination in a shuttle of a frame; two cup-shaped bobbin bearings therein each open on one side of a the frame; with "a spring-pressed plate mounted between the bearings to retainthe bobbin therein; `and means for supporting'either end of the bobbin. independently of said bearing. f

8. The combination in a shuttle of a frame;

t\vo relatively short spindles mounted there in, and spaced such a distance apart that either of them is free of the bobbin when the latter is engaged as far as possible with the other spindle; and means for rotatably supporting that end of the bobbin which is disengaged from its spindle.

9.` The combination in a shuttle of a frame; two relatively short spindles mounted therein, and spaced such a distance apart that either of them is free of the bobbin When it is engaged as far as possible with the other spindle; meansfor rotatably supporting that end of the bobbin which is disengaged from its spindle; and means for yieldingly holding the bobbin in place.

l0. The combination in a shuttle of a frame; two bobbin bearings mounted therein with their ends at a materially greater distance apart than the length of a bobbin in order to permit the latter to move longitudinally therein; `with means for rotatably supporting either end of the bobbin out of engagement with its adjacent bearing when it is moved into the same a predetermined distance.

l1. The combination in a shuttle of tivo bearings; and relatively short tapering spindles in said bearings respectively, the distance from the end of either one of the bearings to the end -oi the spindle in the other bearing being greater than the length of the bobbin, the diameter of the bearings being greater than that of the bobbin ends so that either end of said bobbin is supported independently of its bearing When it rotatably engages the spindle therein.

12. The combination in a shuttle of a frame having an opening anda yarn guide leading therefrom; a support oi" spring material mounted in the opening; two open sided bearings carried by said support with their ends at a greater distance apart than the length of a bobbin; and pointed spindles for the bearings, onefspindle being clear of a bobbin when the latter is on the other spindle With its end engaging the end of the adjacent bearing.

13. The combination in a shuttle of a frame having an opening and a yarn guide leading therefrom; two open sided bearings carried by said frame; and pointed spindles for th-e bearings, the distance from the end of one bearing to the point of the spindle in the other bearing being greater than the length of a bobbin for use in said shuttle.

14:. The combination in a `shuttle of a frame; and means for supporting a bobbin in the frame With that end from which yarn is being delivered, supported to permit the free drawing over it of any coils of the yarn which come off of said bobbin; and spindles mount-ed to alternately engage and support the nondelivery end of the bobbin as said bobbin is alternately moved in opposite directions longitudinally of the frame under the action of the yarn.

, ALFRED F. MGCOLLUM.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents,

Washington, D. C.

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