US790649A - Carrier for braiding-machines. - Google Patents

Description

.PATENTED MAY 23, 1905 J. '& ,G. M0GAHEY. CARRIER FOR BRAIDING MACHINES.

APPLICATION FILED JUNE 23,1904.

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PATENT OFFICE.

JOHN MoOAHEY AND GEORGE MoOAHEY, OF PROVIDENCE, RHODE ISLAND, ASSIGNORS, BY DIRECT AND MESNE ASSIGNMENTS, TO THE DEMING BRAIDING COMPANY, A CORPORATION OF RHODE ISLAND.

CARRIER FOR BRAlDlNG-MACHINES.

SPECIFIGATION'fO rming part of Letters Patent No. 790,649, dated May 23, 1905.

Application filed June 23, 190 2. Serial No. 213,788.

T0 at whom it may concern;

Be it known that we, JOHN M'oOAHEY and GEORGE F. McOAHEY, residents of the city of Providence, in the county of Providence and State of Rhode Island, have invented certain new and useful Improvements in Carriers for- Braiding-Machines; and we do hereby declare that the following is a'full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the figu res of reference marked thereon, which form a part of this specification.

This invention relates to spool-carriers for braiders and the like, and has for its object to produce a simple and practical carrier that has many structural advantages over the ordinary carrier used for this purpose.

A further object of the invention is to greatly increase the speed at which the carrier may safely be run, first, by reducing the liability-of overrunning of the yarn-spool by the use of more reliable mechanism hereinafter described, and, second, by reducing the height of the carrier. which at once reduces its top-heaviness and a consequent liability of cramping in the raceways by the action of the centrifugal force upon it. These improvements are fully set forth in the following specification, particularly pointed out in the appended claims, and illustratedin the accompanying drawings.

Figure 1 shows aside elevation of thespoolcarrier threaded up and in position to be used.

Fig. 2 is acentral sectional elevation showing the tubular standard with the spring therein for assisting the bottom weight to applytension tothe yarn. Fig. 3 is a rear elevation 4t 4 of the carrier. Fig. 4: is a section on line of Fig. 1, showing a tubular standard witha' flat back, on which latter the bottomweight slides. Fig. 5 is a perspective viewof the latch and guide-wire, showing the flat spring Fig. 6is a plan view of the spindle, the notched portion of said spindle being in section.

In the drawings at 1 is the foot of the caredges at 3 3 on each side thereof. The bottom weight4: is loosely held to engage these projecting edges 3 3, so it may slide freely up and down on the said back. The upper end of this fiat portion is cut away to allow the said weight to be readily removed therefrom. Into the upper end of this'tube is screwed a plug 5, through which is drilled a small hole 6.

' The spindle 9 is pointed or rounded off at its upper end, so that the latch may be pressed over it more easily. Said spindle is also notched out at 10 to receive the forked end of said latch. Riveted to this latch at 12 is the flat spring 11. (See Figs. 5 and 6.) This spring is held down in position on the fork by the lug 13, that extends out over-it. When the forked end of the latch-is pressed down over the pointed end of the spindle 9, this spring 11 is compressed and draws thearm 14 of said fork over into the notched portion 10 of the spin dle 9, as shown in Fig. 6. This notch efiectually prevents the latch from being raised too high and also prevents it from being thrown off of the carrier when running at a high velocity. Depending from one end of this latch is the guide-pin 7. The pin extends down through the hole 6 in the plug 5 into the tubular portion of the standard 2. On the back of the bottom weight 4 is a lug 16, in which the eye 17 is made for the reception of the thread 18 when the carrier is threaded up.

One end of the pin 19 is fixed in this lug 16 and extends through the slot 20 into the hollow standard 2. Resting on this pin within the hollow standard is the loosely-fitting guidi'ng plug 21, against which the lower end of the'tension-spring 22 rests.

The operation of this invention is further described as follows: The spool 23, on the up per end of which are formed ratchet-teeth 24, is placed on the spindle 9 on the carrier. The latch 8 is then swungaround over the spindle 9 and pressed down over its pointed end. The

flat spring 11 engages the rounded side of the spindle, drawing the arm 14 under the notch, and prevents the latch from being disengaged therefrom, but allows it to move freely up and down on the spindle. By this improved construction there are no loose parts liable to be thrown off by the high velocity of the running carrier to fall among the mechanism. Another object in this construction and method of operating the latch is that the carrier is kept down to minimum height, thus reducing its top-heaviness and liability to cramp in the raceways.

The threading of this carrier is very simple and may be done after the spool is in place on the spindle, the thread being first passed through the eye 25 in the outwardly-projecting lug 26, then down through eye 1'7 in the bottom weight, and thence by a straight lead up through the eye 27 in the lug 28. By inclosing the spring in the tubular standard it is out of the way and cannot become entangled with the yarn.

It is customary in the old-style carriers to make the bottom weight heavy enough to regulate the tension on the yarn and compensate for the ever-changing length of the same as the carrier passes in and out in braiding; but in this improved device the bottom weight is made very light, and a spring 22 is employed to supply the necessary tension. This spring is found in practice to work much better than the heavy weight, as it acts to return the guide or weight 4 very quickly. A heavy weight when thrown upward by a sudden impulse requires some time to recover and fall again. It will therefore be seen that by the use of the spring the tension on the yarn is kept much more uniform. In addition to its quick action the spring is much lighter, and therefore assists in reducing the total weight of the carrier, which is a very desirable feature where high speed is required.

To withdraw the yarn from the spool, the bottom weight is first raised against the tension of the spring 22, and the plug 21 comes in contact with the end of the guide-pin 7 and through it the latch 8 is raised to the upper lip of the notch 10 in the spindle 9, which allows said latch to just clear the upper edge of the tooth with which it was engaged on the spool 23, releasing said spool, which is thereby left free to turn. The instant the spool starts to turn the tension on the yarn is released, and through the medium of the spring 22 the bottom weight is quickly forced down, allowing the latch to fall immediately, catching the next tooth, and allowing but one to pass at a time. The overrunning of the yarn is thus obviated, preventing more yarn than is required from being drawn ofi, which often happens in the old-style carrier by a sudden impulse given bya jerk on the yarn, in which case there would be no tension on the yarn, and the braid is spoiled. To take the spool from the spindle, the latch does not have to be removed from the carrier. The forked end is pressed to one side out of the notch 10, and the latch is simply raised and swung around clear of the spindle on its pin in the tubular standard.

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

1. In a spool-carrier, a spindle on which is mounted a spool or bobbin, a latch for engaging said spool, a tubular standard, and means including a spring in said standard to act on the latch and immediately stop the delivery of yarn when the tension on the same is released.

2. In a spool-carrier, the combination of a spindle on which a spool is mounted, a springactuated latch for engaging both the spool and the spindle, a tubular standard, and means whereby the bottom weight raises said latch and allows the spool to turn when yarn is to be drawn from said spool.

3. In a spool-carrier, a spindle on which a spool is mounted, said spindle being provided with a rctaining-notchin its upperend, alatch. for engaging said spool to prevent it from turning, said latch also being arranged to engage the notch in said spindle,a bottom weight, a standard on which said bottom weightslides, and means whereby said bottom weight will raise the latch and allow the spool to turn when yarn is to be drawn from the spool.

41. In a spool-carrier, a spindle on which a spool is mounted, said spindle being provided with a retaining-notch in its upper end, alatch for engaging said spool to hold it from turning, said latch also being arranged to engage the notch in said spindle, a guide-pin depending from said latch, a bottom weight, a standard on which said bottom weight is held to slide vertically, a tension-spring acting on said bottom weight and means whereby said bottom weight may engage said pin to raise the latch and allow the spool to turn when yarn is to be drawn from said spool.

5. In a spool-carrier, a spindle on which a spool is mounted said spindle being provided with a retaining-notch in its upper end, a latch for engaging said spool, said latch also being arranged to engage the notch in said spindle, a spring on said latch to prevent it from being disengaged from said spindle while the machine is running, a bottom weight, a standard on which said bottom weight slides, a tension-spring acting on said bottom weight, and means whereby said bottom woight will raise the latch to allow the spool to turn when yarn is to be drawn from said spool.

6. In a spool-carrier, a spindle on which a spool is mounted said spindle being provided with a retaining-notch in the upper end thereof, a latch arranged to engage said spindle, a

spring on said latch to prevent it from being disengaged from said spindle when the machine is running, said latch being also arranged to engage said spool and prevent an excessive rotary movement of the same, and means for raising sai'd latch to allow the spool to turn when yarn is to be drawn from the dle when the machine is running, a tubularstandard, a guide-pin depending from-said latch into said tubular standard and means whereby the bottom weight engages said pin to raise the latch and allow the spool to turn .when yarn is to be drawn from said spool.

8. In aspool-carrier, the combination of a spindle on which a spool is mounted, a latch for engaging said spool, a bottom weight, a tubular standard having a flattened portion with projecting edges which edges engage said bottom weight to hold it onto said standard as it slides vertically, a guide-pin depending from said latch into said tubular standard, a tension-spring within said standard acting on said bottom weight, and means whereby the bottom weight engages said pin to raise the latch and allow the spool to turn when yarn is to be drawn from the spool.

9. In a spool-carrier, the combination of a spindle on which is mounted a ratchet-head spool, a latch for engaging the teeth of said spool a tubular standard having aslotted back, a guide-pin depending from said said latch into said tubularstandard, a bottom weight through which the yarn is threaded arranged to slide vertically on said standard, an extension on said bottom weight projectingthrough the slotted back intosaid tubular standard, a tension-spring within said tubular standard arranged to act on said bottom-weight extension, and means whereby the bottom weight also engages said pinto raise the latch and allow the spool to turn when yarn is to be drawn from the spool.

10. In a spool-carrier, the combination of a spindle on which is mounted a ratchet-head spool, said spindle being provided with a retaining-notch in its upper end, a latch for engaging the teeth of the spool and also being arranged to engage the notch in said spindle, a spring acting on said latch to keep it in en; gagement with the notch in said spindle, a tubular standard havinga slotted back, aguidepin depending from said latch into said tubular standard, a bottom weight through which the yarn is threadedv arranged to slide vertically on said standard, an extension on said bottom weight projecting through the slotted back into said tubular standard, a tensionspring within said tubular standard arranged to act on said bottom weight and means whereby the bottom weight also engages said pin to raise the latch and allow the spool to turn when yarn is to be drawn from said spool.

In testimony whereoi we have hereunto set our hands this 22d day of June, A. D. 1904.

JOHN MoOAHEY.' GEORGE F. MOCAHEY.

In presence of GEO. F. HQFMAYER, HOWARD E. BARLOW.

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