Патент USA US2044206код для вставки
June 16, 1936. 2,044,206 ‘J. P. CAMPS AUTOMATIC WEFT REPLENISHING DEVICE Filed Sept. 3, 1952 _ 2 sheets-sheet 1 June 15, 1936. _‘|_ P. CAMPS 2,044,206; AUTOMA‘I-IC WEIFT REY‘LENISHING DEVICE Filed Sept. 5, 1932 ‘2 Sheets-Sheet 2 v kL 4% Z?ttitt Patented June 16, 1936 iJNi'E‘EQ STATES rarest assist 2,044,206 AUTOMATIC WEFT REPLENISHWG DEVICE Juan Pica?ol Camps. Sabadell, Spain Application September 3, 1932, Serial No. 631,630 In Switzerland June 21, 1932 2 Claims. (Cl. 139—250) This invention relates to an automatic weft re a lever l2 mounted on a spindle I5. A catch I1 plenishing device for looms for weaving of the is provided on the end of the lever ‘l, which catch type in which the weft carrier is in the form of a engages a stop It ?xed on the slay of the loom. The device operates in the following manner: When it is desired to transfer a bobbin from UT the drum l3, the spindle I5 is rocked in any suit able manner. This movement is imparted by rotary drum such as the Northrop type of rotary 5 drum. According to the present improvements, the automtic weft replenishing device is character ized in that the drum which carries the weft carriers or bobbins is made to advance, for the 10 purpose of ensuring that the flyers, which guide the bobbins, remain parallel to the lateral sides of the shuttle, from the commencement of the transfer, until the end of its movement which is synchronous with the horizontal component of 15 the hammer, thus producing a completely verti cal change or straight movement of weft carriers or bobbins from the drum to the shuttle. The circular path of the end of the hammer during transfer movement is such that the change can 2 O be effected during an advancing movement of 18 to 25 mms., or more, of the sley of the loom. In addition to the movement of the drum during the transfer, a movement is given to the drum to place the next succeeding weft carrier or bobbin 25 under the transfer hammer ready for the next transfer. The attached drawings form an integral part of this speci?cation, and show by way of example, a convenient embodiment of the invention. 30 Figure 1 is a side view of the device. Figure 2 is a front view of the same, partly in section. A drum l3 provided with radial flyers [9 has a toothed ring M with outwardly projecting 35 notch-shaped teeth and a toothed ring 3 with inwardly projecting ratchet teeth. One end of a pawl 4 engages the ring 3, the other end of this pawl being pivotally mounted on a stud I8 ?xed in a lug ‘lb on a rocking lever '! mounted on a 40 spindle 8 by means of a second lug ‘m. A hammer l in the form of an elbow lever and comprising two arms la and lb is oscillatable around a spindle Ill and normally maintained in raised or inoperative position by a spring 20. 4 The arm I?) of this elbow lever is also mounted on the spindle 8. A lever 9 is pivotally mounted on the spindle 8 and has at its end a catch head 2| which is resiliently maintained in engagement with the toothed ring M by means of a spring 50 2. The lever 7 also carries a tappet roller 5 adapted to bear against the under side of the lever 9 and press the catch head 2! in engage ment with the toothed ring it. A pin l I is ?xed on the lever ‘I and engages in the forked end of the lever l2 and pin II to the rocking lever ‘l, which consequently swings into horizontal posi tion so that the roller 5 bears against the under side of the lever 9 and presses the catch head tightly into engagement with the ring N, there by locking the drum against rotation. During this movement the pawl ll mounted on the stud I8 is advanced over the toothed ring 3. When the 15 lever ‘l is in horizontal position, its catch H is in the path of movement of the stop It ?xed on the slay and this stop engages in the catch l'l when the slay has still 18 to 25 mms. to travel before reaching the end of the beat up movement. Con sequently the lever is displaced 18 to 25 mms. by the slay. Owing to this displacement the spindle 8 is also displaced causing the hammer to swing about its spindle l0 and press the bobbin out of the flyer l9 into the slay. As the lever 9 is also mounted on the spindle 8, it will likewise be displaced and its catch head 2i will rotate the drum l3 so that the bobbin is gradually brought into the delivering position during the transfer so that a straight movement of the bobbin from the drum to the shuttle takes place during the transfer. When the slay commences its return movement, the lever ‘l is liberated and parts are returned 35 into their initial positions by the spring 20. The lever ‘I is then swung downwards by means of the lever l2 and spindle l5 so that the roller 5 is removed from the underside of the lever 9, there by releasing the lever so that it is held in engage 40 ment with the ring M merely by its spring 2. Owing to this downward movement of the lever ‘l a pull is exerted on the pawl 4 which con sequently rotates the drum. During this rotation the catch head slides into the next following gap in the ring l4 against the action of the spring 2. What I claim is:-— 1. An automatic weft replenishing device com prising in combination with the slay of the loom, 0 a stop on said slay, a spindle adapted to be rotated to bring the device into action, a forked lever keyed on said spindle, a rocking lever carry ing a roller engaging in the forked end of said lever and having a catch at its end adapted to 65 2 2,044,206 be brought into horizontal position in front of said stop, a drum over said slay provided with radial ?yers, an internally toothed rim on said drum, a pawl engaging said rim and cooperating with said rocking lever to rotate said drum at the end of the movement of said slay after said stop has engaged said catch, a spring loaded lever adapted to engage in said rim to lock said drum during the replenishing action, a roller on said 10 rocking lever adapted to hold said spring loaded lever in engagement with said rim when said rocking lever is in horizontal position and a hammer pivotally mounted on said rocking lever adapted to shift horizontally during the transfer to produce a straight movement of the bobbin from the drum to the shuttle. 2. An automatic weft replenishing device, as set forth in claim 1, characterized in that, in the application of the automatic weft replenishment 5 to the Northrop type of rotary drum, means are provided to effect the change compatible with a very long travel of the sley of the loom, whereby in addition to the movement of the drum during the transfer a movement is given to the drum to 10 place the next succeeding weft carrier or bobbin under the transfer hammer ready for the next transfer. ~ JUAN PICANOL CAMPS.