US882106A - Weft-replenishing mechanism for looms. - Google Patents

Description

No. 882,106. PATENTED MAR. 17, 1908. J. GABLBR.

WEFT REPLENISHING MECHANISM FOR LOOMS.

APPLICATION FILED MAR.11. 1903.

3 SHEBTS-SHEET 1.

No. 882,106. PATENTED MAR. 17, 1908. J. GABLBR.

WEFT REPLENISHING MECHANISM FOR LOOMS.

APPLICATION FILED MAR. 11. 1903.

3 SHBETSSHBET 2.

7 1 1 Q z z h J z VW x 0 7 k a r III I. w m g L LVFMFKF L F L c c J W0 4 1,

PATENTED MAR. 17, 1908.

J. GABLER.

- WEPT EEPLENISHING MECHANISM FOR LOOMS.

APPLICATION FILED MAR.11. 1903.

a SHEETS-SHEET s.

aim @1320- courses 0 UNITED STATES PATENT OFFICE.

JOHANNES ,GABLER, or HORNBERG, GERMANY, ASSIGNOR To METIERS GABLER, OF BASEL, SWITZEREAND.

SOCIETE ANONYM DES WEFT-RE-PLENISHING MECHANISM FOR LooMs.

Specification of Letters Patent Patented March 17, 1908.

Application filed March 11, 1903. Serial No. 147,292.

, To all whom it"may' concern:

Be it known that I, JQHANNES GABLER, weaving foreman, a subject of the German Emperor, residing at Hornberg, Gutache strasse, the Grand Duchy of Baden, Germany, have invented a new and useful Weft- Replenishing Mechanism for Looms, of which the following is a specification.

In the looms heretofore employed, the slots or openings of the shuttles are placed vertically with relation to the bottom of the lay or batten. In my invention the shuttle is turned on one side'in the batten so as to have the slot opening for bobbins which are who inserted lengthwise, horizontal to the bottom rail of the batten. Furthermore, in the devices heretofore employed for the automatic insertion and exchan e of shuttles and bobbins, respectively, on y a limited small number of the same could be stored up in the magazine for-the weaving operation, and in most cases these constructions necessitated special construction of looms. My Invention is distinguished by the possibility in only shuttle looms of mounting any suitable number of bobbins upon extension rails provided with .a scale and with olpenguide openings for the said bobbins for t e automatic insertion of the bobbins and for the removal of the same from the shuttle upon'the beating up of the loom, which may be rovided either with foot or top actuated pic er staves. p o

The new apparatus is adaptable to any necessity of changing the construction there is lowered upon .the empt bobbin only containing but a few i yarn, this operating the apparatus by means of series of levers and by an ,ad-

justable cam.

' Figure 1 of the accom anying drawings I shows a plan View, the b0 bin ready for in- 5 sertion in front of the binder 1", and also the full bobbin in place inthe shuttle .t. There may be any suitable number of such bobbins which are mounted in slots 2 of the graduated bars or rails. Y The lowest bobbin is in 3. position to be pushed into the shuttle. I As soon as ayfull bobbin has been inserted in the 'shuttle the, racks ,z, together with the full bobbins mounted in the slots 2 can descend by one bobbin thickness; Fig. 2 shows the 3 weft detector 0r feeler f in plan view, which the thread from the bobbin is led bars or rails .2 to be m moves forward. A spring kind of looms now in use without the like a finger key, is extended toward the lay and rests upon the bobbin, the longitudinal section being shown in the Fig. 7 on the line CD; Fig. 3 shows in front view the bobbins ready for insertion and mounted upon the sectional orgraduated bars 2, in combination with levers and connection with the feeler; Fig. 4 shows the frame of the loom provided withthe bobbin exchange mechanism; Fig. 5 ows a plan and sectional view after line AB in Fig. 5 of the shuttle t with the Weft bobbin 8 in position; and Fig. 6 represents the weft bobbin ready for insertion.- Fig. 7 is a detail sectional view taken on line CD of Fig. 2.

According to Figs. 5 and 6 the bobbin frame 0 and the thread guide 0 consists of two separate parts, and consequently they are not connected with each other. For each of the bobbin frames 0 there is a complementary thread guide 0 through which and, the two parts are then inserted in the slots of the pushed simultaneously into the shuttle at the time replenishment is desired. The thread guide 0 is of cylindrical form and of such dimensions as to'accurately fit into an aperture formed in the shuttle, into which it is pushed when the arm bears against the end walls of the slot an thereby holds the thread guide 0 in position. The bobbin frame 0 is similarly formed, a spring thereon acting in a similar manner to that just described, the two springs retaining the holder in position until it is displaced by the insertion of a new bobbin.

Theaction of the apparatus is as follows: The feeler f mounted to slide on the loom frame is urged forward, a spiral spring pushing the said feeler. On the movement of the shuttle to the ri ht, and at the beat of the lay, the feeler wi enter into the aperture inthe shuttle and bear against the bobbin contained therein. If there is still sufficient yarn upon the bobbin, the feeler will be pressed back, the lever a resting in'an elevated osition upon the incline f of fork f. If the obbin has become nearly exhausted leaving only a'few turns of yarn thereon, the feeler will straddle the weft bobbin, and the. lever a, will move from the position in which it was retained by the incline on the feeler f. (See Fig. 7)." This results in the rocking shaft (1 connected to lever bbeing turned, a

link '5 connected therewith being raised. The extension of lever arm 91' acts upon the projecting stud k of lever 7c, while otherwise if the link i has not been raised by the above described mechanism brought into action by the -movement of the weft feeler, the arm 1" will ass clear of it during its shifting at every revo ution of the adjustable cam Z. The adjustable cam Z now operates the swinging lever 07, causing the lever is to turn upon its point of support '8, the said leverk pushing the bobbin actuating levers m and m forward and pushing the bobbin in a horizontal direction out of the supporting bars 2 into the shuttle t, thereby ejecting the empty bobbin throughthe Wall 9, (Fig. l), of the shuttle.

Inc/the foregoing description, two devices have been described which are requisite for replenishing spent bobbins by full ones in the shuttle.

I will now proceed to describe the arrangement by means of which the following on of further full bobbins from the magazine is effected, so as to be in a position ready for the next changing operation. As soon as the weft bobbln has been inserted in the shuttle, the springs p and will come into action, bringing the lever and '5 back to their original position. In the course of the return movement of the lever 7c, the pawl w is disengaged from ratchet wheel 2 by means of the connecting rod 1), attached to the lever 76 so that the ratchet wheel can revolve to an extent corresponding to the thickness of a bobbin,in consequence of which, the racks 2, together with the magazine of full bobbins mounted on the bars, can descend by one bobbins thickness, so that a full bobbinis brought into position opposite binder 7, ready for insertion in shuttle t. whole series of bobbins mounted upon the bars are used up, the said bars. are raised by means of racks 2 and gear wheels z, on spindle d by rotating crank g byhand, when the magazine can be refilled.

What I claim and desire to secure by Letters-Patent is After the 1. In an automatic a paratus for exchanging and inserting bob ms in the shuttle for looms operating with one shuttle, comprising a batten or lay 1',the arrangement of a shuttle t, provided with a lateral slot in front and a slotted Wall 9 behind, a slotted binder 1", a thread guide 0 and a bobbin frame 0 in connection with pressure levers m and m which serve to introduce the bobbin. horizontally into the shuttle t and causing the ejecting of the empty bobbin from the shuttle through the slotted wall g of the batten and by the pressure of the full bobbin, the slot openin of the shuttle for the reception of the b0 bin being parallel with the bottom' rail of the batten and allowi the insertion of the bobbin from the front through the slot 0 enin of the binder 1".

2. n a bobbins into and from shuttles, a yieldingly arranged Weft detector or feeler f, which passes like a caliper over the bobbin as soon as it is almost exhausted and contains only a-few courses of yarn, and ives, in connection with a lever a, by whic moving a lever b is raised, and a rock shaft d turned, a

leverage .to a link '8, thereby transferring the. motion of a lever '11 to a lever 1c, the latter pushing the new bobbin ready for insertion f,-

1n the hopper into the shuttle t.

3. In a device for inserting and ejecting weft bobbins for looms,

a hopper consisting 1n two graduated or sectlona are provided evice for inserting and ejecting with lateral guide holes 2 for the reception of a suitable number of weft bobbins and a ratchet wheel m and ratchet pawls w and a:-

to operate said sectional rack bars to regulate the feed of the said bars, so as to re lace every exhausted bobbin in the shuttle y afull bobbin in succession upon the advance movement of the batten or lay.

In witness whereof I have hereunto set my hand in presence of two witnesses.

J OHANNES GABLER.

Witnesses:

' J AOOB ADRIAN, W. HARRIS,

Images