US916362A - Weft-replenishing mechanism for looms. - Google Patents

Description

P. ODONNELL. WEFT REPLENISHING MECHANISM FOR LOOMS. I

APPLICATION FILED JAN. 30, 1908.

916,362, Patented Mar. 23, 1909.

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WEFT RBPLENISHING MECHANISM FOR LOOMS.

APPLIOATION FILED JAN. 30, 190B.

91 6,362. Patented Mar. 23, 1909-.

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E51! owowzz weaivin FELIX ODONNELL, OF PAWTUCKET, RHODE ISLAND.

W'EFT-BEPLENISHING MECHANISM FOR LOOMSI Specification of Letters Patent.

Patented March 23, 1909.

Application filed January 30, 1908. Serial No. {318,331.

To all whom it may concern:

Be it known that I, Fnmx ODosxnLL, a

citizen of the United States, residing at the city of Pawtucket, in the county of Providence and State of Rhode Island, have i nvented certain new and useful Improvements in VVeft-Replenishing Mechanism for Looms, of which the following is a specification,

reference being hadthcrein to the accompanying drawing.

This'invention relates to looms, more particularly of the class which are prgvided with automatic replenishing mechanism for whereby a fresh supply of filling is automatically trausfermd from the magazine to the shuttle when said supply has been exhausted or thethread broken.

The object of this invention to provide a simplified form of mechanism which is positive -in its action and comparatively inexpensive in construction, the same being an improvement over that illustrated in my atent numbered 794,377.

Vith these and other objects in view, the invention consists of certain novelfeatures of construction, as will be more fully described and particularly pointed out in the appended claims.

In the accompanying drawings: Figure li-s an end elevation of the loom showing portions broken away, or in section,

. to better illustrate the action of the auto lnatic filling replenishing apparatus, which is represented in its normal position. Fig. 2 is a'd'etail showing the end of the trans ferrer arm and its connection withthe ratchet wheel locking pawl. Fig. 3- is a perspective view showing the spring lock bolt for retaining the pawl carrying arm in position. Fig. 4- is a central section through the magazine or filling feeder. Fig.

5 isa front view of a portion of the magazine enlarged, showing the means for retaining the'cops in position therein. Fig. 6- is an edge view of a portion of the magazine showing the cop holding devices.

Referring to the drawings, at l is the loombreast beam and 2 one of the end frames on 'which is set the ordinary loom arch 3.

The rotatable, magazine or filling feeder this provided with resilient bobbin holders placed at intervals all around the periphery of the same. These holders are especially designed and adapted to engage one end of a cop or filling carrier and firmly support it in a horizontal position while being carried around under the foot of the plunger, the

construction of said carrier being more fully hereinafter described. This wheel 4 is mounted and fixed on the shaft 5, which shaft is supported to turn in the bearing 6, see Fig. at. This shaft extends out beyond the cop wheel and has mounted upon it the fillingend support 7 and the filling-end holder 8. A ratchet wheel 9 is also mounted on and fixedto this shaft so as to turn with it and the filling carrier wheel. The teeth of this ratchet wheel are preferably made in a square form and spaced apart to correspond to the spacing of the cop carriers on the wheel 4. so that each timethe ratchet is movedahead one tooth a fresh bobbin is brought into position to be struck down into the shuttle, in the manner hereinafter do scribed.

At 10 is a arm, one end of which is pivotally mounted to be moved freely on the shaft A pawl 11 is pivotally mounted at l2 on said arm and is normally held in mesh with the teeth of said ratchet wheel by the tension of the spring 13. This arm is carried down, in the manner hereinafter described, so that the pawl will take another tooth each time a bobbin has been transferred into the shuttle. In order that this arm shall he carried back to its normal position at the proper time a lever ll, pivoted at 15, is provided with a contact wheel 16 and extends forward, its free cnd bcing con ncct'cd to said arm by means of the connect- ,ing rod 17 so that when the cam 18, which is mounted on the crank shaft 19, rotates and engages said wheel 16, the said arm 10 is raised, through its connections described, moving the magazine forward in a positive manner to bring a fresh bobbin into position to be struck into the shuttle, and is held in that position by friction of the spring pin 20 which engages the notch 21 in the connecting rod 17. A balancin spring 22 is connected to the end of the ever 14 to assist in raising and sup orting the same while in the act of moving rem one position to another.

A transforrer, comprising an arm or lever 23, is pivoted at 24: in the bracket 25, said lever having a plan er spindle 26 pivoted at its outer end 27. gaid spindle is provided with a plunger foot 28 is free to recipro cats in a bearing which. hearing is p votally supported at 30 in the arm 31, by said bearing is free to adjust itself to the circular movement of the upper end of the spindle. A light coil spring 32, surround: ing said spindle, is placed between the end of the lever and the bracket to assist in returning the lever after it has been forced down to strike bobbin into the shuttle.

A depending arm. 33 is pivotally con nected to the lever 23, and near the end of the same at The upper end of this 'arin extends up above the pivctnig pointforming a hook 35 to whiclrone end of the spring 36 is attached, the lower of said spring being connected at 8'? to tie ratchet wheel lock pawl 38. A cam portion is formed on the back edge of this depent ing below its pivoting point and is adapted be engaged and pressed forward by the contact pin d0 when said bar is raise V by the cat" bar hereinafter des ribed. T s contact 40 is held in the bracket ll and is adapter. to be adjusted in the slot 42.

' The ratchet wheel locking pawl 38 is pivoted at 24 andis adapted to extend out over the ratchet wheel 9, its outer end %3 being shaped to fit the square notches in said wheel to firmly lock the same and the cop wheel from moving in either direction while the filling is being driven into the shuttle. The opposite end of the pawl extends back over its pivoti point and is adapted to be engaged by the orerlr lip ll-i, see on the nd ferrer lever in adji do is threaded through said late the exact time of ope i, 1 K: r lip 15 30 a ainst said ovcr-han of the spring 36, w double. purpose of hol tioniand also to exert a end lot the depending lower end back into posi hereinafter specified At l6 is the ordii'iary w to slide in the usual way en 1, and at 4'7 is the usual two arin cani EU, ated lever that operates the fork when there is no weft thread to its end out of he path of said lever the same 1 i The end ofthe {inn &8 enga i of the fork slide d and fi ed W site end to the sh:z ft 50. Th 1 r a along under the breast in. and has a depending arm 51 also to At 19 is the located the cam 53 g at one end in the frame, its opposi ing/ supported and held out of eng with said cam by means of the Lhis latch. may be withdrawn to allow said her to drop and engage said rotating cam when the weft fork fails to find the weft thread, which is done through the arm 55, connection 57, arms 51 and 4-8 and shaft 50, the weft fork slide is driven back in the manner above described", When the ram bar drops the recessed portion 58 in the lower end of the depending arm is carried back by the springi36 to engage the projecting portion 59 in the cam bar. As the cam now rotates in the direction of the arro sv the said cam' arm is thrown quickly upward carrying with it the depending lever and the transferrer lever 23, driving the plunger down and forcing a fresh cop 0 into the shuttle 61, [is soon this cam has carried its bar, and this: mechanism operated by the movement of the same to its extreme upward positioni the latch o5,'under tension of the spring 62,

engages the end of said cam bar and prea gilnnger lever 23 is provided with a portion 63 which engages the pin 64:

awl 10 carrying said pawl down 1 it for another tooth as said lever de- SCQTLLLS. After this lever me again risen to its normal position the pawl arm is raised by ineans of the cam 18 through its connecting levers rotating the ratchet wheel the space of one tooth, bringing a fresh cop s on under the plunger.

c iential feature of my invention is my particular means for retaining the hob- I on the magazine or filling feeder, which comprises essentially small blocks 65 -65 at intervals all around the front the rim of the feeder wheel l. Each blocks is provided with a resilient or holder so extending up on either side of the same. The ends of said wire 67 are secured to said block preferably by being set into corresponding holes therein. These springs are located a short distance oiit from the face of the wheel leaving a space for the head of the hobbin. The

he a oi the hohoinsare preferably con structed *ith. grooves to receive th s wire and adapted to he forced down or ion master and at the same time hold its head back against the face of the wheel by means of which'the bobbin is positively held in its correct position and prevented from getting .out of line, insuring its being directly over and in line with the shuttle when the presser foot descends to force it into the shuttle.

The operation of the device may be further described as follows: \Vhen the fork 46 fails to find the weft thread it is driven back in the usual way by the lever 47 and A through the arms 48 and 51 and connections carried upward with a sudden impulse. this upward motion the rear end at the lock- 57 the pawl is withdrawn from the cam bar which latter is allowed to drop and ride on the cam "When this bar drops to the lower portion of the cam the depending bar ing pawl 38 is allowed to rise undertension of the spring 36 causing its locking end to engage with the ratchet wheel securely hold- .ing the same and the cop wheel from turnmg during the period in which the bobbin is being forced into the shuttle. As the long end of the transferrer lever 23 is thrown inward the hook 63 engages the pawl arm and carries it down so as to cause the pawl 11 to engage another tooth. The forward movement of this transferrer lerer'23 causes the presser foot 28 to force the cop out from engagement with its carrier and into the shuttle as heretofdre described. transferrer lever has been released and raised again the cam 18 operates the arm i lsition to be struck down into the shutt through the connection 17 to again raise the pawl arm 10 back to its normal position carrying with it the ratchet wheel and the magazine, bringing a fresh cop into polo, the pawl arm being retained in its-normal position* by means of the check or spring bolt 20. The whole mechanism now stays in this, its normal position, represented in Fig. 1, until the thread breaks or the filling runs out of the shuttle, when the operation above described is again repeated driving the bobbinsone after'another into the snuttle as the holder is rotated, at the same time ejecting the bobbin from the shuttle previously contained therein.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is

1. A machine of the character described. comprising a rotatable filling feeder, a transferrer, a pawl-carrier supported independently of said transferrer and adapted to imart movement to said feeder, a projectioneing formed on said pawlcarrier, means After the carried by said transferrer arranged to engage said projection, and means for'positirt-ly returning said pawl carrier to normal position whereby said feeder is operated.

.2.- A machine of the character described, (emprising a rotatable filling feeder, a transferrer, a pawl-carrier supported independently of said trans'ieri'er and adapted to impart moven'lent to said feeder, a projection being formed on said pawl carrier, means carried by said transferrer arranged to engagesaid projection, means for positively returning said pawl carrier to normal p0sition whereby said feeder is operated, and means for rotating the said carrier in said normal position.

A machine of the character described. comprising a rotatable filling feeder, a trans, ferrer, a pawl-carrier supported independ ently of said transferrer and adapted to impart movement to said feeder, a projection being formed on said pawl carrier, means carried by said transferrer arranged to en--.

gage said projection, and cam actuated means for positively returning said pawl carrier to normal position whereby said feeder is operated.

4. A machine of the character described, comprising a rotatable filling feeder. a trans ferrer, a pawl-carrier supported ll'lt'ltpmltlently of said transferrer and adapted to impart movement to said feeder, a projection being formed on said pawl carrier, means carried by said transferrerarranged to en age said projection, cam actuated means tor positively returning said ,pawl carrier to normal position whereby said feeder is oper ated, and a detent for retaining the said carrier in said normal position.

5. A machine of the clmractm' described, comprising a rotatable filling feeder, a transferrer, a pawl-carrier supported independently of said transfcrrer and adapted to impart movement to said feeder, a projection being formed on said pawl carrier, means carried by said transferrer arranged to engage said projection, a locking member adapted to retain the feeder during the operation of the transferrer, cam actuated means for-positively returning said pawl carrier to normal position wherebysaid feeder is operated, and a detent for retaining the said carrier in said normal position.

6. A machine of the character described, comprising a rotatable filling feeder, a transferrer including a pivotally mounted arm, means for positively operating said feeder, said means being mounted independent of said transferrer, a locking member pivoted adjacent said arm and adapted tolock the feeder during the operation of the tIilIISfGIIQI, said tansferrer arm having a lip extending over and normally engaging said lock member to hold the same normallv

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