US716718A

US716718A - Braiding-carrier.

Info

Publication number: US716718A
Application number: US10070402A
Authority: US
Inventors: James Keleher
Original assignee: Individual
Current assignee: Individual
Priority date: 1902-03-31
Filing date: 1902-03-31
Publication date: 1902-12-23
Anticipated expiration: 1919-12-23

Description

No. 7:6318. Patented nec. 23, |902. .1. KELEHER. y

BRAIDING CARRIER. (Application lled Mar. 31, 1902.)

(No Model.)

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JAMES KELEHER, OF LAWRENCE, MASSACHUSETTS.

BRAIDlNG=CARRIER.

SPECFICATION fern-:dug part of letters Patent No. 716,718, dated December 23, 1902.

Appui-am het nach si, 1902.

Be it known that il, JAMES KELEHER,.of Lawrence, county of Essex, and State of AMassachusetts, have invented an lm provement in Braiding-Carriers, of which the following description, in connection with the accompany A ing drawings, is a specication, like charac-1 ters on the drawings representing like parts.'

This invention relates toV certain improvements in bobbin-carriers for that class of machines in which a series of bobbins are carried in and out in opposite directions about a common center to which the threads lead, which are generally known as braiding-machines. Y

Many of the braiding-carriers now commonly employed have a tension-weight which is supported by the thread asvit passes from the carriers to the braid,'said weight being guided by a standard as it rises and falls and the thread passing beneath the weight as it leads from the bobbin to the braid, with the result that the weight is caused to tip obliquely and bind on the standard. This'latter difficulty has been avoided by making the bobbinspindle hollow and guiding the tension-weight therein, the thread being passed through the upper end of the weight. While'A this construction operates in a fairly satisfactory manner, yet it is expensive and difficult to thread and open to various objections, which need not be here enumerated. l r

The object of my invention is to produce a braiding-carrier in which the tension-weight is supported above its center of gravity and is guided to slide, so that all-possibilitylof binding is avoided, and which is simply constructed and is comparatively easy to thread and which possesses various advantages over prior devices of this character, which will hereinafter appear.

For an understanding of my invention ret`- erenoe is now made to the accompanying drawings, in which- Figure 1 is a side elevation of the carrier.- Fig. 2 is a partial central cross-section of the upper end end thereof. Fig. 3 is a plan view. Fig. et is a cross-section on line .r of Fig. l. Fig. 5 is a detail side View of the tensionweight.

Thev base l of common form is provided serai No. 100,704. (No man.)

with the vertical spindle 2, on which the bobbin 3 is rotatably mounted. T Wo standards Ll and 5 are secured to said base and extend vertically therefrom, being radially arranged with respect to the axis of the bobbin and their adjacent faces being concaved, as shown. A tension -weight 6, consisting of two side plates 6 6b, which are formed integral with the vertical-sided cross-piece 6, is provided, thus forming opposite grooves in which standards 4 and fare located. The width of each standard with respect to the groove in which it is located and the thickness of cross-piece 6 with respect to the width of the space between said standards are sufficient to permit the Weight to slide freely vertically therebetween. The upper end of said cross-piece 6c has a thread-passage 6d, which is centrally arranged, so. that when a thread is passed therethrough and the weight is suspended by the thread the inner surfaces of said plates and the sides of cross-piece 6c will be substantially parallel to the sides of the standards-that is, the thread-passage 6d is arranged above the center of gravity of the weight and in such a position that the surfaces of the weight next the standards are substantially parallel toits line of direction when suspended from a th readpassing through said passage. The upper ends of the weight are curved and inclined, so that the highest point therein is at the side next the bobbin when the weight is hanging in its normal position.

The inner standard 4 is provided with a vertically-extending thread-guidin g slot La on its side next the bobbin and intermediate its length and a thread-guiding aperture 4l at its upper end. The other standard 5 has a threadguide at its upper end, the thread-passage 5a therethrough being closely adjacent the ver- IOC SiL and nearly directly beneath the passage 5 and is made narrow adjacent its pivotal point to permit the thread to pass the same.

The thread T from the bobbin is first passed through slot 4u, then through guide-passage 4b, then obliquely down through passage S of the latch, down through passage 6(1 of the weight,and then up past the latch through passage 5a, from which point it is led to the point Where it is braided with the other strands. The operation is similar to devices of like character. As the thread is drawn ont' the tensionweight is lifted until the upper ends of its plates 6 6b engage the arms 8b 8c of the latch, liftingit sufficiently to move it out of locking engagement with the shoulder on the bobbin with which it was in engagement and permitting the bobbin to rotate, so that the latch comes into engagement with the next shoulder.

In practice the weights of the dierent carriers are constantly jerked up and permitted to drop by the in-and-out motion of the carriers with respect to the braid. For this reason the weight is almost invariably thrown or drawn against the latch with considerable force, and if the upper end of the weight were madehorizontalthelatch would bestruckwith a sudden blow, suddenly arresting the movement of the weight and often placing such a strain on the thread as to break it. With my construction, however, the weight rst engages the latch near the unpivoted end of the latter, so that the latch is lifted much more easily than if it were engaged near its pivot. Moreover, the rounded ends of the weight cause it to roll on the surface of the latch to a limited extent, swinging the weight t0 the oblique position shown in Fig. 2. This construction therefore tends to minimizev the force of the blow given to the latch by the weight, so that the sudden jerk or strain which is usually placed on the thread at the time of this blowis practically avoided. As with my construction the latch is thrown upwardly with comparative ease, the latch might be thrown so high that it would permit the bobbin to rotate sufficiently to carry several of its shoulders past the latch, so that the bobbin would thus give off so much thread that the weight would drop to its lowest limit and stop the machine. To obviate this result, I have provided the passage 8d in the latch for the thread as it leads from the passage 4b above the latch down to the passage 6d of the weight, so that the thread is drawn over the latch and acts to prevent its being thrown upwardly above the point necessary to liberate the bobbin. NVith my construction the latch will always drop against the shoulder next succeeding the one with which it was in engagement. The adjacent faces of

standards

4 and 5 are made concave to prevent all possibility of the thread being bound between the cross-piece of the weight and the adjacent sides of the standards when the weight is tipped obliquely upon striking the latch or is thrown against the standards by their tipping movement due to worn guides and their in-and-out movement. The vertical thread-slot 4a guides the thread from the bobbin in such a manner that the force necessary to draw the thread through the passage 4b is at all times uniform.

lFrom the foregoing description it will be apparent that I have produced a braidingcarrier which obviates the objections noted in the preliminary part of the-specification.

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

l. A braiding-carrier comprising a base and means for rotatably mounting the bobbin thereon, a pair of upright standards on said base, a tension-weight adapted to slide freely therebetween, the upper ends of each standard being provided with thread-guides and said weight being provided'with a thread-passage above its center of gravity, the thread from the bobbin successively passing through the guide of one of said standards, said passage, and then the other guide, and locking means for the bobbin adapted to be moved out of locking engagement therewith when the weight reaches the upper limit of its travel.

2. Abraiding-carrier comprisingalo'ase and means for rotatably mounting a bobbin thereon, a pair of upright standards carried by said base,a tension-weight slidably arranged therebetween, a latch pivoted to the upper end of one of said standards and adapted to fall into locking engagement with said bobbin, threadguides in the uppei ends of said standards, said weight having a thread-passage above its center of gravity, the thread passing through one of said guides, through said passage and through the other guide successively, said weight being adapted to lift said latch and release the bobbin when the weight is drawn to its upper limit.

3. Abraiding-carriercomprisingabase and means for rotatably mounting the bobbin thereon in a vertical position, an upwardlyextending standard carried by said base arranged adjacent the bobbin, a tension-weight guided to freely slide on the side of the standard next the bobbin, said weight having a thread-passage above its center of gravity, independent thread-guiding means radially arranged with respect to the axis of the bobbin on opposite sides of said weight, and adjacent the upper limit of its travel, and locking means for the bobbin adapted to be moved out of locking engagement when the weight reaches its upper limit.

4. Abraiding-carrier comprisinga base and means carried thereby for rotatably mounting the bobbin in an upright position, an upwardly-extending standard carried by said base, a tension-weight guided to slide on the vertical face of said standard next the bobbin, said weight having a centrally-arranged thread-passage above its center of gravity, a

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locking-latch pivoted to the upper end of said standard which extends over,'and is adapted to drop into locking engagement with the end of the bobbin, said latch having a vertical threadpassage adjacent its pivoted end, a thread-guide arranged above said latch and between its thread-passage and the bobbin, a thread-passage in the upper end of said standard, the thread leading from the bobbin through said thread-guide, then through the passage of said latch, Weight and standard successively, substantially as, described.

5. A bobbin-carrier for braiding-machines comprising a base having the bobbin rotatably mounted thereon, two standards mounted on said base which extend upwardly therefrom and are arranged radially with respect to the axis of the bobbin, a tension-Weight slidably arranged between said standards, said Weight having a thread-passage above its center of gravity, the standard nearest the bobbin having a thread-passage intermediate its length and at its upper end, the other standard having a thread-passage at its upper end, the thread successively leading through said passages as described, a lockinglatch for the bobbin which extends across the path of movement of the Weight, said weight operating to lift the latch out of locking engagement with the bobbin.

6. Abraiding-carriercomprisingabase and means for rotatably mounting a bobbin thereon, an upright standard extending from said base, a tension-Weight guided by said standard as it moves vertically, a locking-latch pivoted to said standard at one end, its opposite end being adapted to drop into locking engagement with the bobbin, a thread-guide at the upper end of said standard and a second guide adjacent the upper end of thebobbin, said tension-weight having a centrallyarranged thread-passage above its center of gravity, and having its upper end curved and inclined from its side next the bobbin,where by said Weight may engage saidlatch near its outer end and gradually lift the same.

7. A braiding-carrier comprising a base havinga rotatably-mounted bobbin,a looselyguided tension-Weight adapted to be supported above its center of gravity by the threadA as it passes from the bobbin to the braid, the upper end of said Weight being formed obliquely with respect to its path of movement and having its highest point adjacent the bobbin, a gravity-locking latch for the bobbin arranged in the path of the Weight and pivoted on the opposite side of said path from the bobbin, said Weight operating to lift the latch,l substantially as described.

8. A braiding-carrier comprisingY a base having a rotatably-mounted bobbin, a looselyguided tension-Weight adapted to be supported above its center of gravity by the thread as it passes from the bobbin to the braid, the upper end of said Weight being curved and formed obliquely with respect to its path of movement and having its highest point adjacent the bobbin, a gravity-lockinglatch for the bobbin arranged in the path of the Weight and pivoted on the opposite side of said path from the bobbin, said Weight operating to lift the latch, substantially as described.

Q. A braiding-carrier comprising a bobbincarrying base, a pair of upright standards which extend therefrom, and have their adjacent sides parallel and concaved, a tension- Weight having its middle portion guided between said concaved faces, a thread-guide which is arranged in said middle portion, guiding means for the thread between the bobbin and the Weight and between the Weight and the point where the thread leaves the carrier, substantially as described.

lO. Abraiding-carriercomprisingabobbincarrying base having a pair of upright standards disconnected at their upper ends, a tension weight which is guided between said standards 'having a centrally arranged thread-passage above its center of gravity, guiding in eans for holding said Weight against transverse movement in both directions with respect to said standards and guiding means for the thread as it leadsfrom the bobbin t0 said passage, and as it leads from said passage to leave the carrier, substantially as de scribed.

In testimony whereof I have signed my name to this specication in the presence of two subscribing Witnesses.

JAMES KELEHER.