US851672A - Construction of carrier-bar mechanisms for twisting and spinning machines. - Google Patents

Description

No. 851,672. I BATBNTED APR. 3o, 1907.

i P. R. JONES. VGOATST'RUGnIoN 0F CARRIER BAR MBGHANISMS PoR yTWISTING AND SPINNING MACHINES.

APPLIOATIONHLBD 1133.10. 1906.

m5 Non-ms PETERS co., wAsmNcmN, n. c.

.lio

FRANK R. JONES, OF WORCESTER, MASSACHUSETTS.

CONSTRUCTION OF CARRIER-BAR MECHANISIVIS FOR TWISTING AND SPINNING MACHINES.

Specification of Letters Patent.

Patented April 30, 1907.

Application filed February lO, 1906. Serial No. 300,362.

To a/ZZ whom t may concern.-

Be it known that I, FRANK R. JONES, a citi- Zen of the United States, residing at Worcester, in the county of lVorcester and State of Massachusetts, have invented a new and useful Improvement in Construction of Carrier-Bar Mechanism for Twisting and Spinning Machines, of which the following is a specification, reference being made therein to the accompanying drawings.

This invention relates to an improved finger device and carrier for use in conjunction with the tumbler and carrier rolls that support the yarn or sliver in certain kinds of worsted spinning or twisting machines.

The object of my present invention is to afford a practicable, more el'l'icient and desirable construction for the purpose named, and to provide a carrier-bar of the character described, with separately attached iingers of sheet metal bent and folded in the peculiar form hereinafter more fully set forth.

My invention consists in the features of construction which are definitely set out in the claims; an embodiment of said invention being illustrated in the accompanying' drawings, wherein Figure 1 is an elevation view of a carrierbar and its fingers, showing the inner face thereof. Figs. and 3 are transverse sectional views at line YV IV, 'with the iinger in side elevation, and showing the same as made with single and dual lipped bearing guides. Fig. 4 is a perspectiyc view of the finger. Figs. 5 and 6 are top end views of the finger, showing the dual-lipped and single lipped forms. Fig. 7 is a cross section of the 'linger at line X X, on Fig. 4 and Fig. 8 represents the sheet steel blank from which the finger is produced.

In my invention the bar proper, indicated on the drawings by the letter B, is made of a mill rolled rod of light channel-bar shape, or dual flanged eross-section. The bar .is straight and the flanges 3, f or a short. distance at its respective ends, are flattened or removed to provide ilat seating surfaces 2; holes 1 `being formed therein to facilitate at tachment of the carrier-bar to the frame of the spinning machine whereon it is used. This carrier-bar is provided with a plurality of attached fingers for supporting the journals or gudgeons of tumbler rolls. Three fingers are shown. Either two, or three, fingers are commonly used on a carrier-bar, ac-

cordingly as designed for a six-boss set or an eight-boss set.

The carrier-fingers F, in accordance with my invention, are each made from a blank (f Fig. S) of sheetstecl about one sixteenth of an inch, more or less, in thickness; the guides for the tumbler-roll bearings being formed from suitable lateral wings 4 of the blank which are folded inward, bent and eifsct in the manner illustrated.

The body of the 'linger is formed with a flat seating-portion 5 to 'lit the face of the bar B, above which it is formed with an outwardly arched semi-cylindrical curved portion 6 of suitable size to pass around and clear the front portion of the carrier-roll C, the position of which is indicated by dotted lines on Figs. l and 3; while the head portion 7 of the finger is arranged to stand with its plane approximately parallel with the plane of the seating portion 5. For the guides or bearing jaws 9, opposite lateral portions of sheetmctal or members 4 are folded backward at the edge line of the body, as at 10, and returned inward, as at 11, adjacent to the plane of the head, toward the median line thereof, and then bent or o'l'l'set at a right angle 12, forming rearwardly projecting lips 13 which extend out for a distance equal to or slightly greater than the diameter of the tumbler-roll journal; the oll'set lips 13 being parallel with the central line of the linger.

At the rear edge of the lips 13' the metal is bent or oilset at a right angle 14, respectively in opposite directions, and extends in a il ange er lip l5 parallel with the plane of the head, and terminating approximately even with the line of the vlirst bend 10 or edge of the body the portions 11, 13 and 15 forming rectangular guides for loosely supporting the journals of the tumbler rolls. The positions of the rolls and journals in relationthereto are indicated by dotted lines 1' on Figs. 2, 3, 4 and 5.

In instances in which the carrier-bar and fingers are employed in a forwardly inclined position, as in Fig. 2, the dual lip or portion 15 may be omitted, as the tumbler-roll journal in such cases bears on the inwardly returned surface 11; but in instances in which the carrier-bar and finger are used in a rearwardly inclined position, as in Fig. 3, then the dual lip or portion l5 is employed, as the tumbler roll journal in such cases bears against the surface of said outer lip.

IOO

In practice three sets of carrier rolls are usually employed on a spinning machine; the carrier bars and fingers for the back and middle sets being forwardly inclined, (as in Fig. 2) and those for the front set rearwardly inclined; (as in Fig. 3) hence each modification of the finger is herein illustrated and included.

The finger F is rigidly attached to the flat face of the channel bar B by a rivet, or rivets, 17 that pass through holes 19 formed in the seating portion 5, which latter is preferably provided with an offset lip 16 that fits the lower angle of the bar B, thus bringing the finger into square relation therewith when the parts are assembled.

The curved portion 6 of the finger is preferably provided with an outwardly rounded pressed stiffening rib 20 formed therein, as best shown in Figs. 4 and 7.

By my invention I provide a carrier bar construction and vfinger that is light, strong, durable and efficient; and wherein the guides are accurate and uniform in respect to their journal-guiding surfaces; also a carrier-bar mechanism that can be readily assembled upon the spinning or twisting machine without great care and labor for adjusting and bringing the several fingers into proper alinement with the carrier-rolls which are on the machine.

I am aware that previous to my invention what are known as carrier-rolls and tumbler-rolls have been employed associated with the drawing rolls in spinning or twisting machinery, and used with differently constructed means for supporting such rolls; but I do not claim broadly means, supporting carrier and tumbler rolls, as my invention relates to the improved fingers and carrier-bar having the construction shown and definitely expressed in the claims.

What I claim and desire to secure by Letters Patent, is-

l. A carrier-bar finger having its head provided With guide members formed from oppositely folded portions of sheet metal disposed parallel with the plane of the head, and bent or offset rearward near the median line, in two parallel projecting lips, as set forth.

2. A carrier-bar finger formed of sheet metal integrally comprising the ltransverse lipped attaching portion, an outwardly curved body having a stiffening rib pressed therein, and a head portion provided with rectangular oppositely folded journal-guide lips bent and upset from the opposite edges of the head, as set forth.

3. A carrier-bar finger composed of a T- shaped blank of steel, having oppositely disposed wing portions inwardly folded atthe edges of the main portion, and each bent rearward and outward on lines of fold approXimately parallel with the central plane of the finger, the surfaces of said wing portions disposed as end-guiding and side-guiding surfaces for receiving tumbler-roll joure nals, the main body portion longitudinally vcurved along its central part and having at the opposite end of said curve a flat attaching portion in a plane approximately coinciding in alinement with the plane of the head portion.

4. The sheet metal carrier-,bar finger comprising a flat seating portion, a semi-cylindrically curved portion and a flat head portion with lateral inwardly folded members returned. adjacent to the plane of the head, bent or offset parallel with the median line of the head, and projected rearward with a right angular offset, the respective end portions the two members being disposed in opposite relations in a manner to include spaces and surfaces for guiding or carrying tumblerroll journals.

5. A carrier-bar for the purpose specified, comprising a bar of mill rolled metal of channeled or flanged cross-section, having suit able attaching seats at its ends and a plurality of sheet metal carrier-fingers rigidly se cured in f'latwise relation upon said bar, each of said fingers consisting integrally of an attachingfseat portion, an outwardly curved central portion, and a head portion having journal-guiding lips thereon disposed in relation to the plane of the head, substantially as set forth.

6. A carrier-bar for spinning machines, consisting of a longitudinally lianged wrought bar having its end portions flat and perforated, and a plurality of individually attached outwardly curved sheet-metal fingers, each finger including in its form an attaching seat and engaging-lip fitting the angle and face of the bar, an arched central portion and a head portion comprising laterally opposite, inwardly folded members bent rearward at either side of the median line of the finger and forming two parallel end-bearing flanges, and means rigidly securing said fingers to the bar, substantially as set forth.

wWitness my hand this 7th day of February, 1906.

FRANK R. JONES.

Witnesses:

CHAs. H. BURLEIGH. ELLA P. BLENUs.

IOO

IIO

Images