US356764A

US356764A - Machines

Info

Publication number: US356764A
Authority: US
Publication date: 1887-02-01
Anticipated expiration: 1904-02-01

Description

(N0 Model.)

H.- W. HARLEY & J. BRENNER,

UP FOR KNITTING MAGHINES.

' TAKE- N0. 856,764.

Patented Feb. 1, 1887.

u. PETERS, Phowut'hcgaphqv. Washingim. u, v.2v

units llnirnn KEEN? tries,

HOVY'ARI) XV.

TAKE UP FOR KNlTTlNG WlAGi-HNES,

5PECIFICATIQN forming part of Letters Patent No, 356,764, dated February 1, 188?.

Application filed August 21, 1885. Serial No. 174,931.

To all whom it may concern:

Be it known that we, HOWARD W. HARLEY and JOSEPH BRENNER, of the city and county of Philadelphia, and State of Pennsylvania, have invented an Improvement in Take-Ups for Knitting-Machines, of which the following is a specification.

Our invention has reference to take-up de vices for circular knitting-frames; and it consists in certain improvements whereby the cloth is taken up from the knitting-frame and wound in the form of a flat web upon the receiving'roller in the take-up frame, the takeup devices of which work automatically, and whereby auniforin tension may be maintained upon the fabric and the amount of said tension adjustably varied when desired, all of which is fully set forth in the following specification and shown in the accompanying drawings,

which form part thereof.

The object of our invention is to provide a suitable construct-ion of takc up for knittingfranies which shall embody great adjustahilit; as to the tension with which the cloth should be wound upon the receiving roller, and whereby the amount of said tension,\vhen once ascertained, may he kept uniform or constant.

We are aware that take-up frames have been made with automatic take-up devices for the circular webs of knitting-machines, and therefore We do not claim the construction thereof, broadly; but our specific mechanism for accomplishing the results, it is. believed, will work more uniformly andv accomplish the desired result in a more satisfactory manner, and it is upon the specific improvements that this application is made.

Talreup devices such as have heretofore been employed are illustrated in Patent No.

195,917, to Crane, and K0. 195,929, to Jackson. In the former the ratchet-feed for the takenp roller is incapable of adjustment, and hence no provision is made for fabrics of different thicknesses, and the friction-creating device is located between the hearings of the take-up frame, and cannot be easily gotten at Without totally dismantling the machine; and, furthermore, the tension cannot be varied without considerable trouble and the use of additional tools. The same general, defects are found in the latter potent, though in this case no fric- (Xo model.)

tion device is used, and the take-up roller is made to rotate continuously.

In our construction the friction-creating device isloeated wholly outside of the frame, and can be dismantled without removing the takeup roller from its hearings; also, the amount of tension can be instantly adjusted by turning the handwheel, also external to the frame. The feed is also adjustable to suit fabrics of different thicknesses or yarns of difierent thicknesses.

In the drawings, Figure l is a front elevation of a take-up device for a.- circular knitting-frame embodying our invention. Fig. 2 is a side elevation of same; and. Fig. 3 is a View, partly in vertical section and partly in elevation, of a portion of the take-up frame, the take-up roller, and the devices connected with the letter.

A is the take-up frame, and is made to rotote about shaft-Bus a center, being supported over the knittingniachine proper. The cloth from the knitting-machine passes up between the guides F around rollers C E, and is wrapped upon heavy metal receiving-roller D, which is allowed to rise or fall in guides G, it resting upon the take-up roller 0 and being rotated by frictional contact therewith.

Take-up roller 0 consists (see Fig. 3} of the wooden rollerI'I, secured I by suitable pins or otherwise, and said tubular shaft passes through the side arms of the frame A, and has secured upon one end the handwheel K and upon the other a head, M. It also carries upon the same end as the head M a loose head, N, between which heads a loose ratchet-Wheel, O, is placed. Between the ratchet-wheel O and the heads hi and N are placed annular rings, washers, or pads P, of leather, felt, or their equivalent, to create airiction, so that when the head hi is drawn up toward. the head ill by the bolt 5 (having the pin j, which prevents the said bolt revolving independently of the head N) the ratchetwheel 0 is clamped to the tubular shaft I, and therefore indirectly with take-up roller 0, with a greater or less pressure, as required. The clamping action is controlled by the handout L upon the other end of the rod. The ratchet-Wheel is prevented from turning backto the tubular shaft word by pawls U u, pivoted to the frame A,

the former of which has a spring to keep it pressed in contact with the ratchetwheel, which is rotated forward by apawl, S, pivoted to an arm or lever, B, journaled about the tubular shaft 1, and connected to a rocking lever, Q, by an adjustable rod, r, the arm and lever being kept apart by a spring, q. The upper end of the rod is screw-threaded and passes through a hole on the lever Q, and has a nut, 0', upon its upper end to hold the lever Q down upon the spring q and limit its position with relation to the lever B, By turning the nut the adjustment of the lever Q relatively to arm or lever Ris accomplished. The lever Q has a slot, 25, in which is adjustably secured the lower end of the connecting-rod T, the upper end of which is connected to the crank V, rotated by gearing W, connected to the central pivot, about which the frame A revolves. By adjusting the end of the rod T in the slot 1 any number of ratchetteeth desired may be turned with one revolution of the crank V. The spring between the levers Q and R makes the connections between the crank V and the pawl S a giving or elastic one, so as to allow for any dragging on the. cloth, and the tension under which the cloth is wound may be controlled by tightening up the nut L more or less, for the ratchet-wheel 0 would turn without winding up the cloth :if the tension on the cloth in the knitting-machine were too great.

The take-up roller 0 is covered with emery or sand paper, so as to positively feed the cloth to the roller D and prevent it slipping upon its periphery.

While we prefer the construction shown, it is evident that the details thereof may be modified without in anywise departing from our invention.

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

1. The combination of the revolving frame with the receiving-roller D, take-uproller O, a hollow shaft rigidly connected with said take-up roller and supported in said frame, a ratchet-wheel loosely supported upon said shaft, friction-creating devices located external to the take-up frame for causing the shaft and ratchet-wheel to rotate together, pawls and pawl-actuating mechanism adapted to inter mi ttently rotate said ratchet-wheel, a tensionrod for said friction-creating devices, extending through the hollow shaft, and a tension-nut upon the other end and external to the takeup frame, substantially as and for the purpose specified.

2. The combination, in a take-up device for knitting-machines, of the frame A, adapted to rotate on a vertical axis, take-up roller 0, the shaft I, carrying said take-up roller and journaled in said frame, disk M, secured to said shaft, loose disk N, ratchet-wheel O, frictionoreating pads or washers P, tension-bolt J, tension handle or nut L, and pawl mechanism to rotate said ratchet-whee1, substantially as and for the purpose specified.

8. The combination, in atake-up device for knittingmachines, of the frame A, adapted to rotate on a vertical axis, takeup roller 0, the shaft I, carrying said take'np roller and journaled in said frame, disk M, handwheel K, secured to said shaft, loose disk N, ratchet wheel 0, friction-creating pads or washers P, tension-bolt J, tension handle or nut L, and pawl mechanism to rotate said ratchet-wheel, substantially as and for the purpose specified.

4.- The combination, in atake-up device for knittingmaehines, of the frame A, adapted to rotate on a vertical axis, take-up roller 0, the shaft I, carrying said take-up roller and journaled in said frame-disk M, secured to said shaft, loose disk N, ratchet-wheel O, frictioncreating pads or washers P, tension-bolt J, tension handle or nut L, and pawl mechanism consisting of hinge-levers Q and R, rod r, ten

sion-spring. q, spring-actuated pawl S, secured to lever B, pawls secured to the frame, and means to rock the lever Q to rotate said ratchet-wheel, substantially as and for the purpose specified.

5. In a takeup device for knitting-inachines, the take-up-roller shaft provided with a ratchet-wheel, in combination with levers Q and R, a compressible connection between said levers, pawl carried by lever B, a crank to oscillate said levers, and. connecting-rod T, adjustably connected to the lever Q, the oscillation of said levers may be varied with a fixed crank-throw, for the purpose specified.

6. In a take-up chines, the take-up-roller shaft provided with a ratchet-wheel, in combination with levers Q and R, a compressible connection between said levers, a pawl carried by lever B, a crank to oscillate said levers, and connecting-rod T, adjustably connected to the lever Q, whereby the oscillation of said levers may be varied with a fixed crank-throw, loose or gravity pawl u, and a spring-pawl, U, connected to the frame of the machine, to prevent back motion of said ratchet-wh eel, substantially as and for the purpose specified.

7. In a take-up device for knitting-machines, the take-up-roller shaft, provided with a ratchet-wheel, in combination with levers Q and R, a spring, q, to thrust said levers apart, a rod-connection, r, to draw said levers toward each other and limit the action of. the spring, a pawl carried by lever B, a pawl supported by the frame of the machine, mechanism, substantially as described, to oscillate the said levers, and means to increase or diminish the throw of the lever Q, substantially as and for the purpose specified.

8. The combination of the revolving frame with the receiving-roller D, take-up roller 0, a hollow shaft rigidly connected with said takeup roller and supported in said frame, a ratchetwheel looselysupp orted up on said hollow shaft,

whereby device for knitting-ma substantially as and iriction-crcating devices located external to the take-up frame for causing the shaft and ratchet-whecl to rotate together, pawls and pawl'actuating mechanism adapted to intermittently rotate said ratchet-wheel, a tensionrod for the friction-creating devices extending through the hollow takeup-roller shaft, and means external to the frame to adjust the said rod, and hence the amount of friction by the friction-creating devices, substantially as and for the purpose specified.

9. The combination of the revolving frame with the receiving-roller D, take-up roller 0, a shaft rigidly secured to said take-up roller and supported in said frame, a ratchet-wheel loosely supported upon said shaft, frictioncreating disks pressing upon the sides of said ratchet-wheel and secured to said shaft, for causing said shaft and ratcheuwheel to rotate together, a rotating crank, levers R and Q, hinged upon the shaft-center, a compressible connection between said levers R Q, a, pawl carried by the lever B, and a connectingrod, T, connecting the crank with the lever Q,

substantially as and for the purpose specified.

10. The combination of the revolving frame with the receiving-roller D, take-up roller 0, a shaft rigidly secured to said take-up roller and supported in said frame, a ratchet-wheel loosely supported upon said shaft, frictioncreating disks pressing upon the sides of said ratchet-wheel, secured to said shaft, for causing said shaft and ratchet-wheel to rotate together, adjusting mechanism to press the disks more or less tightly upon the ratchet-Wheel to vary the amonntof friction, a rotating crank, levers B and Q, hinged upon the shaft-center, a compressible connection between said levers R Q, a pawl carried by the lever B, and a connectingrod, T, connecting the crank with the lever Q, substantially as and for the purpose specified.

In testimony of which invention we hereunto set our hands.

HOl-VARD W. HARLEY. JOSEPH BRENNER.

lVitnesses:

R. M. HUNTER, WILLIAM 0. Minnie.