US2881653A

US2881653A - Braider carrier

Info

Publication number: US2881653A
Application number: US741131A
Authority: US
Inventors: Sabula George
Original assignee: JOHN W COLLIER CO Inc
Current assignee: JOHN W COLLIER CO Inc
Priority date: 1958-06-10
Filing date: 1958-06-10
Publication date: 1959-04-14
Anticipated expiration: 1976-04-14

Description

April 14, 1959 G. SABULA BRAIDER CARRIER Filed June 10 1958 a 2f N Q A Z Q United States Patent BRAIDER CARRIER George Sabula, Riverside, R.I., assignor to John W. ColliernCo Inc., a corporation of Rhode Island Application June 10, 1958, Serial No. 741,131

3 Claims. (Cl. 87-56) This invention relates to carriers for braiding machines, more particularly to a carrier of the type disclosed in Patent No. 2,211,730 issued August 13, 1940, to R. V. Olson.

A carrier of the type above referred to has a vertical reciprocating member generally called a stop acting in a bight of the yarn between the supply bobbin and the lead-01f eye of the carrier. The stop is mounted on a first vertical upright about which is arranged a relatively lightweight tension spring, the lower end of which engages the stop. A latch actuating lift is slidably mounted on a second upright, paralleling the first upright, and is spring biased into engagement against said stop. Upward movement of the stop actuates the latch which in turn releases the supply bobbin for rotation so that a length of yarn is delivered in the known manner as required during the braiding operation. The upper end of the uprights are bridged by a link which is slidably mounted on the second upright and extends into engagement with the first upright and there serves as a stationary held abutment for the upper end of the said spring encircling the first upright.

The link is generally held in position by a downward acting spring pressure against which the link may be moved upwardly to free the end of the first upright and allow removal and replacement of the tension spring as required for different braiding operation. The link is subject to much abuse during the operation of the braiding machine and oftentimes a link will become disengaged from the uprights which is caused by the whipping action of the uprights. As a direct result of the abuse of the carrier, the uprights tend to move relative to each other and the link wears the slidably engaged upright. Rust often develops at this wear point and oftentimes it is impossible to remove a link.

An object of the invention is to improve generally on the type of link above mentioned.

Another object of the invention is to provide a link which will be constructed so as to be held on the uprights by frictional engagement therewith.

A more specific object of the invention is to manufacture the above link of a plastic material with an opening therethrough of a size to grip at least one of the above uprights through the tendency of the plastic material to recover to initial condition.

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

In the accompanying drawings:

Figure 1 is an elevational view of a fragmentary portion of a braider carrier embodying the invention;

Figure 2 is a perspective view of the connecting link;

Figure 3 is a sectional view of the upper portion of Figure 1 shown on an enlarged scale; and

Figure 4 is a perspective view of a modified form of the connecting link.

2,881,653 Patented Apr. 14, 1959 ICC other. The upright 12 is longer than the upright 11 and carries at the upper end thereof a lead off yarn guide or eye 13 from which a yarn Y is led to the'braiding location. A yarn tensioning traveler 14 which is generally referred to as a stop by workers in the art since it additionally functions to actuate the stop motion of the machine is mounted for reciprocation on upright 11 and.

has oppositely disposed arms 15 which straddle upright 12 and retain the stop in proper alignment on upright 11. A yarn guide 16 is carried by the stop and engages in- -a bight of the yarn Y between a supply bobbin and'the lead off eye 13. The stop 14 is provided to take up slack in the yarn during movement of the carrier from the outer portion of the carrier track to the inner portion thereof, and to pay outyarn with the movement of the carrier toward the outer portion of said track during which time yarn is drawn from the supply bobbin.

The let-off of yarn from the supply bobbin is controlled -by a latch lift 17 which is slidably mounted on upright 12 by a portion 18 which encircles the upright and is normally at a location above the said arms 15 and in the path thereof to be engaged thereby and moved therewith against the pressure of a coiled spring 19 during the upwardly movement of the stop. The spring 19 encircles the upright 12 and the lower end of the spring abuts against portion 18. The upper end of the spring engages against a yarn guide eye 20 which is fixed to upright 12 and to which the yarn is led from the supply bobbin.

The weight of the stop 14 is supplemented by spring pressure supplied by a relatively long, lightweight coil compression spring 21 which encircles the upright or tension spring rod 11. The lower end of the tension spring 21 engages the stop and the upper end engages an abutment 22 or link which is the subject of the present invention.

The link 22 bridges the upper portion of the uprights 11 and 12 so as to maintain the same in parallelism. The link 22 comprises a generally rectangular block of a plastic material, such as nylon, which has a tendency to recover to normal shape upon being deformed. The link 22 is slidably mounted on upright 12 by means of an opening 24 therethrough through which the upright 12 extends. The opening 24 is made of a size slightly larger than the diameter of the upright so as to provide a nice sliding engagement with the upright. A second opening 25 through the link is adapted to be inserted on the upper end portion of upright 11. The opening 25 is made of a size so as to provide substantially frictional engagement on upright 11 to hold the same in position thereon and to allow removal from the upright. Purely by way of example, if upright 11 has a diameter of 0.156 then opening 25 may have a diameter of from 0.147" to 0.150". When the link 22 is inserted on the upright 11, the walls of the opening 25 will be compressed and due to the tendency of the walls to recover or creep to normal size, the link will tighten about the upright 11 with suiiicient friction to hold it against axial movement along upright 11 during the normal abuses to which a braider carrier is subjected by the operation of the braiding machine. When the spring 21 requires replacing, the link 22 is moved upwardly along upright 12 to disengage the link from upright 11 and then swung away to allow removal and replacement of the spring. Thereafter the link is returned into engagement with upright 11.

If a longer bearing surface is desired along upright 12, the link may take the form shown in Figure 4. In this form the link 22 has an opening 24 extending through the thickest portion of the link with the frictional engaging opening 25 in the thinner portion.

From the foregoing it will be apparent that the link 22 is of a very simple construction consisting of a single block of a synthetic material pierced With two openings. It will be further apparent that the link is self-held in position on the uprights, thus eliminating clamp screws, coil springs and other elements heretofore employed for mounting and holding the link in proper position.

I have described the link as being preferably made from nylon material, in that I have found nylon to have proven satisfactory in actual usage for a long period. It is, however, contemplated to employ other synthetic plastics which are resilient or have the characteristic to recover or creep back to the normal shape.

I claim:

1. In a braider carrier having a first upright, a second upright extending in parallelism With the first upright, a link extending across said uprights and being slidably mounted on the first upright and having a second opening' therethrough extending into frictional engagement with the second upright, said link being manually disengaged from the second upright for removal of a spring thereon, said link composed of a synthetic plastic material exhibiting the property of recovery whereby upon the material about the wall of said second opening being compressed by engagement with the second upright the opening will tend to recover to original dimensions to tighten said wall about the upright.

2. In a braider carrier as set forth in claim 1 wherein said link is held against unauthorized movement along said uprights solely by the said frictional engagement of the said link with the second upright.

3. In a braider carrier having a first upright, a second upright extending in parallelism with the first upright, the first upright being longer than the other upright, a tension applying member slidably mounted on the second upright, a coil compression spring encircling said second upright and with the lower end of said spring engaging said tension member, and a link extending across said uprights and slidably mounted on the first upright, said link composed of a plastic material exhibiting the property of recovery, said link having an opening therethrough to frictionally engage the second upright and provide an abutment for the upper end of said spring, said link being frictionally held on said second upright and manually removably therefrom for removal of the said spring.

References Cited in the file of this patent UNITED STATES PATENTS 2,240,488 Benson May 6, 1941