US1399521A

US1399521A - Thread and yarn friction-guide

Info

Publication number: US1399521A
Application number: US437146A
Authority: US
Inventors: Rodger John
Original assignee: Individual
Current assignee: Individual
Priority date: 1921-01-14
Filing date: 1921-01-14
Publication date: 1921-12-06
Anticipated expiration: 1938-12-06

Description

I. RODGER.

THREAD AND YARN FRICTION GUIDE.

APPLICATION nuzu JAN. 14. um.

1,399,521. Patented Dec. 6, 1921.

2 SHEETS-SHEET I.

J2 l:-- o 4 [N VEJV T 012 Jain Km? J. RODGER- EHREAD AND YARN FRICTION GUIDE.

APPLlCATION FILED JAN. 14. I921.

1,399,5 Patented Dec. 6, 1921. 2 SHEETS-SHEET 2- f 5 a l I .2? .Jf

-123 A \ia/m 4:

i z al" aw lfEH STATES THREAD AND YARN FRICTION-GUIDE.

Specification of Letters Patent.

Patented Dee, e, 1921..

I Application filed January 142, 1921. Serial No. 437,146.

To all whom it may concern:

Be it known that l, JOHN Rononn, a citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented new and useful Improvements in a Thread and Yarn Friction-Guide, of which the following is a specification. a

My invention relates to new and useful improvements in a thread and yarn friction guide, which is particularly adapted for use for bobbin winders although it is ap plicable to other machines wherein thread or-yarn is used which must be guided and maintained under tension, and has for its object to provide a guide of this character which will give the proper tension to the thread as well as provide for the instant relief thereof should the same become knotted or entangled thereby overcoming the possibility of breakingthe thread or yarn and stopping the operation of the machine.

Another object of the invention is to provide a thread and yarn friction guide provided with a plurality of guide blocks be tween adjacent ones of which are operable spring pressed tension fingers, said blocks and portions of said fingers consisting of non metallic bearing surfaces and more particularly a suitable vitreous material such as porcelain or glass. 1

Another object of the invention is to provide a suitable elastic material as a part of the tension fingers with which coact adjusting screws to limit certain movements of said fingers. i 7

Another object of the invention is to pro vide a tension spring having tension fingers and to provide means for adjusting said spring and retaining the same in its adjustment. 1 A further object of the invention is to pro vide a guide adapted to be interposed between a cop and a bobbin consisting of a base having a yoke for attachment to asuitable support, said base carrying a number of guideblocks, each having a groove therein the upper surfaces of which are inclined from said grooves, a pivoted finger supporting plate carrying tension fingers normally forced between the guide blocks by a spring actingupon the finger plate, said fingers consisting of two different materials and means for adjusting the tension or spring action exerted upon the finger supporting plate.

With these ends in view, this invention consists in the details of construction and combination of elements hereinafter set forth and then specifically designated by the claims.

in order thatthose skilled in the art to which this invention appertains, may understand how tomake and use the same, I will describe its construction in detail, referringby numerals to the accompanying drawings forming a part of this application, in which z j Figure 1, is aside elevation or edge view of my improved thread and yarn friction guide illustrating diagrammatically its location relative to a bobbin and a cop.

Fig. 2, is an enlarged plan view of my improved friction guide, portions thereof being broken away and shown in section to illustrate the construction for varying the tension of the spring. Fig. 8, is a side elevation or edge view thereof. I

Fig. 4, is an end view thereof.

lfn carrying out my invention as here embodied, 2 represents a suitable base or frame preferably formed of cast metal and provided with lateral recesses 3 in its upper face, said recesses being arcuate in cross section. With the underside of the base or frame 2 is formed a yoke 1 whereby it may be at tached to a suitable support 5 as shown in Fig. 1, said base being held in suitable adjustment by means of set screws 6 passing through the arms of the yoke, while with one side are formed theintegral ears 7 and 8, one of which is adjacent the end of the base. lnthe ear 8 is formed a chamber 9 into which project suitably spaced lugs 10 for coaction with the head 11 of the pintle rod 12, said pintle rod passing through both the ears 7 and 8. ln the ear 7 is formed a cavity 13 which houses the spring 1 1, one end of said spring resting against the inner end wall of the cavity 13 as the stationary member and the other end resting against a nut 15 or its equivalent mounted on the end of the pintle rod 12 as the movable member so that the action of said spring will hold the head 11 of the pintle rod within certain spaces between the lugs 10 or in engagement with certain of said lugs to prevent rotation of the pintle rod.

On the pintle rod is pivoted or journaled a finger supporting member 16 by means of the extensions 17 formed therewith and lying at right angles thereto and this finger supporting plate is normally held in the position illustrated herein or virtually at right angles tothe base by means of a coil spring 18 mounted upon or coiled about the pintle rod12 with one end connectedto the finger;

supporting plate as at 19 while the other end'is connected with the pintle rod in some suitable manner, it being here shown connected as at 20 to a nut 21 or its equivalent jammed upon the pintle rod or otherwise connected therewith to normally prevent .the same moving relative to the pintle rod.

On the finger supporting plate are mounted a plurality of spaced tension fingers 22 positioned to register with the lateral recesses 3 and said fingers are preferablyiormed of two materials, the'outer portions represented by the numeral 23 being of non metallic substance or avitreoussubstance suchas porcelain or glass while the inner portions may be of a suitable or flexible resilient material such as rubber as indicated at24, said resilient material actingas a cushion as will be hereinafter more fullyexplained. The substance or material from which these fingers are made are preferably tubular in form and have passing therethrough screws 25 which also pass through the finger supporting plate and have nuts 26 screwed on their projecting ends so as to securely fasten the ends of the stop screws. These screws may be adjusted tolimit the downwardorinward movements of the tension fingers as will be obvious in order that'the distance of said movements may be regulated according to the weight or size of the thread or yarn being used. 7 7

Between the adjacent lateral recesses and on the outside of each of the endmost of said recesses are located the guide blocks 28, the same being mountedupon the upper face of the base 2 and formed of some suitable non metallic vitreous substance such as porcelain or glass and are held in place by screws 29 or their equivalent passing through said blocksand the base 2 with nuts 30 or other similar retaining means mounted on their projecting ends. Intermediate the ends of these guide blocks are formed guide grooves 31 and the upper surfaces of said blocks are inclined in opposite directions from said groove as shown in Fig. 4 and indicated by the numeral 32 so that if the thread or yarn happens to rest or strike upon said upper surface of the guide blocks it will have a tendency to move toward. the

guide grooves 81 and this movement of said in through said grooves.

in practice the thread and yarn friction guide is used with different classes of machinery where it is necessary to convey a strand of thread or yarn from one point to another and is particularly adapted for use with bobbin winders and is located at some suitable point between the cop 33. Fig. 1, and the bobbin 34 so that the thread or yarn 35 being wound on the bobbin from the cop will be properly guided and held under tension so that said bobbin will be tightly wound. During the passage oi the thread or yarn through the guide should. the same become knotted or tangled so as to produce a drag on the thread or yarn as the knotted or tangled portion entered the space between one of the guide blocks and its adj acent finger, said tension fingers will be raised against the action of the tension spring 18 and permit that portion of the thread or yarn running under the fingers and over the guide blocks to be straightened out allowing the knotted or tangled portion to pass by them without causing a. sufiicient drag on the automatic stop mechanism (not shown) to stop the operations of the bobbin winder, but as soon as the knotted or entangled portion has passed beyond my friction guide the tension fingers thereof will again assume their normal positions and force the thread or yarn down into the lateral recesses 3 between the guide blocks 28.

It is well known that where metal guide blocks are used in devices of this character the thread or yarn soon wears small grooves or notches in the surface thereof which causes the thread or yarn to be stripped, shredded or out making it difiicult to use the thread or yarn because of the likelihood of the same breaking and often causing the same to actually break so that it is necessary to rethread the parts causing considerable loss of time, but these disadvantages are entirely overcome by the use of the non metallic guide blocks and fingers for when made of vitreous material such as glass or porcelain exceedingly smooth surfaces are providded which will not become grooved or itte p Of course I do not wish to be limited to the exact details of construction as herein shown as these may be varied within the limits of the appended claims without departing from the spirit of my invention.

Having thus fully described my invention, what I claim as new and useful is 1. In a device of the character stated, a base provided with means for attachment to a suitable support and having lateral recesses arcuate in cross section, vitreous guide blocks mounted on said base on each side of said recesses, said guide blocks having transverse guide grooves intermediate their ends and havingtheir upper surfaces inclined in opposite directions from said guide grooves, ears formed with the base and projecting therefrom, one of said ears having a cavity and the other a chamber therein, spaced lugs formed with the ear provided with the chamber and projecting into said chamber, a pintle rod passing through said cars, a head on each end of said pintle rod and adapted to engage the lugs on one of the ears, a nut on the opposite end of said pintle rod, a spring within the cavity of one of said ears and engaging said nut to normally force the head of the pintle rod into engagement with the aforementioned lugs, a finger supporting plate journaled on said pintle rod, a tension spring coiled about said pintle rod and having one end connected with said plate and with said rod, and a plurality of fingers including non metallic portions carried by said plate and positioned to pass between the guide blocks and enter the lateral re cesses.

2. In a device of the character stated, a base provided with means for attachment to a suitable support and having lateral recesses arcuate in cross section, vitreous guide blocks mounted on said base on each side of said recesses, said guide blocks having transverse guide grooves intermediate their ends and having their upper surfaces inclined in opposite directions from said guide grooves, ears formed with the base and projecting therefrom, one of said ears having a cavity and the other a chamber therein, spaced lugs formed with the ear provided with the chamber and projecting into said chamber, a pintle rod passing through said ears, a head on each end of said pintle rod and adapted to engagethe lugs on one of the ears, a nut on the opposite end of said pintle rod, a spring within the cavity of one of said ears and engaging said nut to normally force the head of the pintle rod into engagement with the aforementioned lugs, a finger supporting plate journaled on said pintle rod, a tension spring coiled about said pintle and having one end connected with said plate and with said rod fingers each comprising a tubular elastic section at its inner end and a tubular porcelain section at its outer end, a screw passing through said sections and finger supporting plate, a nut on the projecting end of said screw, the porcelain outer end sections of said fingers being positioned to enter between the guide blocks in the region of the guide grooves in said blocks, and stop screws threaded through the base and entering the lateral recesses in the region of the elastic inner end portions of the tension fingers so as to contact therewith and limit the inward or outward movement of said tension fingers.

In testimony whereof, I have hereunto afiixed my signature. v

JOHN RODGER.