US783144A - Take-up mechanism for knitting-machines. - Google Patents

Description

PATENTED FEB. 21, 1905.

R. W. SCOTT.

- TAKE-UP MECHANISM FOR KNITTING MACHINES.

APPLICATION FILED JULY 5. 1904.

3 SHEETSSHBET 1.

No. 783,144. PATENTED FEB. 21, 1905.

R. W. SCOTT. TAKE-UP MECHANISM FOR KNITTING MACHINES;

APPLICATION FILED JULY 5. 1904.

3 SHEETS-SHEET Z.

Int/Mr: Faber? Scott fiz's flfiofmqys,

M MK No. 783,144. PATENTED FEB. 21, 1905.

R. W. SCOTT.

TAKE-UP MECHANISM FOR KNITTING MACHINES.

APPLICATION FILED JULY 5, 1904.

3 BEEBTSSHEBT 3.

UNITED STATES Patented February 21, 1905.

PATENT OEEicE.

ROBERT W. SCOTT, OF PHILADELPHIA, PENNSYLVANIA, ASSIGN OR OF ONE- HALF TO LOUIS N. D. WILLIAMS, OF OGONTZ, PENNSYLVANIA.

TAKE-UP MECHANISM FOR KNITTING-MACHINES.

SPECIFICATION forming part of Letters Patent N0. 783,144, dated February 21, 1905. Application filed July 5, 1904. Serial No. 215.2

To all, whom, it may concern:

Be it known that 1, ROBERT W. ScoTT, a citizen of the United States, residing in Philadelphia, Pennsylvania, have invented certain Improvements in Take-Up Mechanism for Knitting-Machines, of which the following is a specification.

The main purpose of my invention is to provide for readily throwing the take-up mechanism into or out of action and to simplify the construction of the said mechanism.

In theaccompanying drawings, Figure 1 is a side view of sufficient of a circular-rib-krfitting machine to illustrate my present invention. Fig. 2 is an enlarged side view of the take-up mechanism. Fig. 3 is a plan view of the same, and Figs. 4 and 5 are respectively a side view and a transverse section of a modilied form of take-up device embodying certain features of my invention.

The fixed table or bed 1 of the machine is mounted upon standards 2, as usual, and has permanently secured to it the vertical needlecylinder 3, with whichcooperates the rotatable vertical cam-cylinder 6. The rotating element of the machine also carries the posts 7, which support the transverse arch 8, and in the latter is mounted the vertical stem or spindle 9,whicl1 carries the dial cam-plate 10, the lower end of said stem or spindle supporting the needle-dial 12, the latter being prevented fromrotating by reason of its engagement with the vertical needle-cylinder 3 in the ordinary manner.

The web of knitted fabric passes between take-up rolls and 61, whose shafts are mounted in suitable bearings in a swinging frame 62, carried by a rod or shaft 63, which is mounted in bearings on the standards 2 of the machine, the shaft of one of the rolls being projected beyond the frame and provided with a worm-wheel 64, which meshes with a worm on a shaft 66, the latter being carried by a swinging frame 67 which is pivotally mounted upon a spindle'68, secured to and projecting from an arm on the frame 62. Upon this spindle is mounted so as to be free to turn a bevel-wheel 69, which meshes with a bevel-pinion on the shaft 66, the hub of said bevel-wheel 69 forming or being provided with a grooved pulley 71, Fig. 3, for the reception of a belt 72, Fig. 1, which is adapted to a pulley 73 on the driving-shaft 5, so that as the web of fabric is delivered from the machine the feed roll frame 62 will descend until said belt 72 is tightened, whereupon the pulley 71 and the gearing in connection therewith will be operated so as to turn the take- up rolls 60 and 61 and cause them to rise upon the knitted web until the belt 72 is again slackened, these operations being repeated indefinitely as the knitting of the web proceeds. In order to readily arrest the operation of the take-up rolls when desired, the swinging frame 67, which carries the wormshaft 66, is slotted, as shown in Fig. 2, for the reception of an eccentric or cam 74 upon a shaft orspindle 75, which is mounted so as to be free to turn in a bracket 76 on the frame 62 and is provided at its outer end with a knob or disk 77. Hence it can be readily turned in order to adjust the cam or eccentric 74 so as to lift the frame 67 and free the worm 65 from engagement with the wormwheel 64 or lower said frame so as to carry the worm again into engagement with the worm-wheel.

In the modified form of take-u p device shown in Figs. 4 and 5 the shaft 66 of the wormwheel 65 is carried by a swinging frame 67 which has a projecting stud 67" mounted in a suitable bearing in the swinging arm 62 and is also provided with a lug 67, which is acted upon by a cam-lever 74, hung to a pin projecting from a bracket 7 6 on the arm 62. The swinging frame 67 also carries a shaft 68, with bevel-pinion 69 and pulley 71, the pinion 69 meshing with a like pinion 70 on the shaft 66 and the pulley 71 being adapted to receive the belt 72, as before.

When the cam-lever 7 4 is in its normal po sition, as shown in Fig. 4, its low portion bears upon the back of the swinging frame 67- and locks the same in position with the worm 65 in mesh with the toothed wheel 64, which is secured to the shaft of one of the take-up rolls and meshes with a similar wheel 64 on the shaft of the other roll.

' When the cam-lever is turned so that its high portion acts upon the lug 67", the frame 67 is raised and locked in the raised position, the worm 65 being lifted out of mesh with the wheel 64:. 1

Havingthus described my invention,I claim and desire to secure by Letters Patent 1. The combination in a circular-knitting machine, of a pair of take-up rolls, a swinging frame carrying the same and worm-gearing for operating said rolls, the worm-shaft being mounted in bearings in a frame which is free to swing on the take-up-roll frame, so as to move the worm into and out of mesh with the worm-wheel, substantially as specified.

2. The combination in a circular-knitting machine, of a pair of take-up rolls, a swinging frame carrying the same, worm-gearing for operating said rolls, a spindle carried by said frame and carrying a pulley which is rendered operative orinoperative by the movements of the take -up-roll frame, gearing whereby the Worm-shaft is driven from said pulley, and a frame carrying said Worm-shaft and mounted so as to swing around the axis of the pulley-spindle to throw the worm into and out of mesh with the worm-wheel, substantially as specified.

3. The combination in a circular-knitting machine, of a pair of take-up rolls, a swinging frame carrying the same, worm-gearing for operating said rolls, a frame carrying the worm-shaft and pivotally mounted on said take-up frame so as to throw the worm into and out of mesh with the worm-wheel, and a spindle mounted on the take-up frame and having an eccentric portion for engaging with said swinging worm-shaft frame,substantially as specified.

4:. The combination in a circular-knitting machine, of a pair of take-up rolls, a swinging frame carrying the same, worm-gearing for operating said rolls, a frame carrying the worm-shaft and pivotally' mounted on said take-up frame so as to throw the Worm into and out of mesh with the worm-Wheel, and a spindle mounted on the take-up frame and having an eccentric portion for engaging with said swinging worm-shaft frame, said eccentric portion being constructed to lock the swinging worm-shaft frame, when the worm is in engagement, substantially as specified.

5. The combination in a circular-knitting machine, of a pair of take-up rolls, a swinging frame carrying the same, worm-gearing for operating said rolls, a frame carrying the worm-shaft and pivotally mounted on said take-up frame so as to throw the worm into and out of mesh with the Worm-wheel, and a spindle mounted on the take-up frame and having an eccentric portion for engaging with said swinging worm-shaft frame, said eccentric portion being constructed to lock the swinging worm-shaft frame in both positions of the latter, substantially as specified.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

ROBERT W. SCOTT.

WVitnesses:

JAMES MCMORRIS,

Jos. H. KLEIN.

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