US1583380A

US1583380A - Wire-drawing drum

Info

Publication number: US1583380A
Application number: US45239A
Authority: US
Inventors: Warren K Williams
Original assignee: Vaughn Machinery Co
Current assignee: Vaughn Machinery Co
Priority date: 1925-07-22
Filing date: 1925-07-22
Publication date: 1926-05-04
Anticipated expiration: 1943-05-04

Description

May 4,1926. 1,583,380

W. K. WILLIAMS WIRE DRAWING DRUM Filed July 22, 1925 INVENTOR. warns)? ff ZU'iI h'qnzs /VATTORNE is Patented May 4, 1926.

assasse neural) s'ra 'ras PATENT for Fiend WARREN K. WILLIAMS, CUYAHOGA FALLS, OHIO, ASSIGNOR TO VAUGHN MAGHINEBY COMPANY, OF CUYAHOGA FALLS, OHIO, A CORPORATION OF OHIO.

WIRE-DRAWING: DRUM.

To all whom it may concern Be it known that LWAnnEN a citizen of the United States, and a resident of Cuyahoga-Falls, county. of Summit, and State of Ohio, have inventeda new andnseful' Improvement in l/Vire-Drawing Drums, of which the following is a specification, the principle of'the invention being herein explain-ed and the best mode in which I have contemplated applying that principle, so as to distinguish it from other inventions.

The present improvements relate more particularly to a take-npattaehnient for the gripper of a horizontal type of drawing block, e. g. a bull block such as is employed in drawing the heavier gauges of wire or rod. In the operation of such a drawing drum or block, even more perhaps than in the case of a vertically disposedblock, while the rod initially. holds the gripping device and chain or equivalent linked member whereby itis attached to the block against the surface of the latter, as the coils of rod build 7 up, the first turns are forced out from the V inner larger ring of the drum and correspondingly loosen up. Asa result, unless-the grlpping devlce and links are in some manner held in they will fly out from the revolving block and thus constitute a menace to the operator.

The object of the present invention is to overcome this condition by providingmeans for holding the gripper at all times closely against the block. The device is so. constructed as to be capable both of automatic and manual operation, and while particularly described as designed for-use on a horizontal block it will be understood that it may be adapted for use on the othertypes of blocks or drawing drums.

To the accomplishment of the foregoing and related ends, said invention, then, consists of the means hereinafter fullyjdescribed and particularly ointeaout in the claims, the annexed drawing and the following description setting forth in detail certain mechanism embodying the invention, such disclosed means constituting, however but one of various mechanical forms in which the principle of the invention may be used.

In said annexed drawing z- I I Fig. 1 is a front elevational view of a horizontal drawing block equipped with: my present improved take-up mec ianis'm; and Fig.2 is partly a side elevation and partly a KQWILLIAMs,

Application filed July 22, 1925. Serial No. 45,239.

central section of such block and device, the plane of the section being indicated by the line 2'2, Fig. 1.

The horizontal drum 1 illustrated in the 7 several figures of the drawing is of familiar construction, being mounted on the projecting end of a shaft 2 as usual, such drum, it will be noted, has a tapering surface, about which the wire or rod is coiled, and at its inner larger end it is provided with a flange 3," against which the coils are initially formed, being then gradually forced outwardly,'i. e. toward the right in Fi 2. A plurality of circumferentially spacec pins 4 project from the front face of the drum and are adapted to receive such coiisas they are forced entirely off the drum proper. V

The gripper 5, whereby the end oft-he wire or rod is seized preparatory to begin- 7 ning of the drawing operation, is attached to the drum through the medium of a flexible member 6 consisting, as shown, of a plu-' rality' of links on the order of a chain, and a portion of the lateral face of the drum is cut away to provide a recess 7 in which such gripper and links are received when the,

gripper is pulled in by the drawing opera tion, this position of the parts'being' shown I in dotted outline in Fig. 1, while the full line position thereof is that occupied when the end of the rod or wire is to be seized by the gripper 5. I

As previously explained, the device of present interest consists of means provided for holding the parts in question thus against the drum, despite the action of centrifugalforce which tends to throw them voutwardly as the coils become loosened.

The special means thusprovided include a spindle 10 rotatablymounted in the drum l co-aXia-lly therewith, such spindle being 7 journaled at an intermediate point in an apertured boss 11 projecting from a plate 12 that closes the front face of the drum and also having its inner end stepped in a recess 13 in the end of spindle 2, that forms a bearing therefor. Keyed or otherwise nonrotatably secured to the portion of the spindle 10 that lies within the drum is a suplement al smaller" drum 14, to which is attached one end'ef a flexible cable 16, the other end of which; s attached to gripper 5. Also key' ed to said spindle, and L in ad jacentthe outer face of drum 14', is a ratchet mounted on the outer end of the spindle be yond boss 11 is a hand wheel 18. A pawl 19 is pivotally secured to plate 12 in operative relation to said ratchet wheel 17, the pin 20, that carries said pawl, projecting through the plate and having secured to its outer end a handle 21 whereby the pawl may be actuated to release the ratchet wheel, a spring 22 normally pressing such pawl into engage ment with the wheel. One side of the hand wheel is enlarged to provide a weight 23, which tends to hold said wheel in the position shown, i. e. to prevent rotation of the spindle 10 and the attached drum '14- and ratchet wheel 17 even thoughthe winding drum or block 1 is rotating.

The operation of the take-up attachment Just described may now be briefly set forth. The direction of rotation of the drawing blockbeing as shown by the arrow in Fig;

1, it is evident that asthe gripper 5, after being initially pulled-in by the wire or rod that is being drawn, will travel around with the block. The supplemental drum 14, however, tends to remain stationary under the influence of weight 23, i. e. does not at first take up the rotation of the block, and as a result the cable 16 will be automatically wound up on said supplemental drum, and when thus wound up will be so held by the action of the spring-pressed pawl 19. Accordingly, the gripper 5 and link 6 cannot by any possibility fly out, no matter how loose the coils of wire on the drum may become. If desired the operator can of course turn the hand wheel 18 backwards, i. e. opposite to the direction of rotation of the drawing block, and in that manner quickly tighten up the cable without waiting for this to be done automatically \Vhen it is desired to draw the gripper out into position 7 for seizing the end of a fresh rod the pawl is released through the medium of operating handle 21 and the hand wheel 18 then rotated to unwind cable 16, or such cable will of course be unwound by simply pulling outwardly on the gripper.

Other modes of applying the principle of my invention may be employed instead of the one explained, change being made as regards the mechanism herein disclosed, provided the'means stated by any of the following claims or the equivalent of such stated means be employed.

I therefore particularly point out and distinctly claim as my invention 1. In mechanism of the character described, the combination of a rotatable drawing drum, a gripper, a flexible member connecting the latter with said drum, and means adapted to hold said gripper to said drum against centrifugal force, said means including a supplemental drum mounted on said drawing drum, a cable connecting said gripper to said supplemental drum, and

means adapted to rotate the latter independently of said drawing drum.

2. In mechanism of the character described, the combination of a rotatable drawing drum, a gripper, a flexible member connecting the latter with said drum, and means adapted to hold said gripper to said drum against centrifugal force, said means including a supplemental drum mounted on said drawing drum, a cable connecting said gripper to said supplemental drum, and means adapted automatically to rotate the latter independently of said drawing drum.

3. In mechanism of the character described, the combination of a rotatable drawing drum, a gripper, a flexible member connecting the latter with said drumy and means adapted to hold said gripper to said drum against centrifugal force, said means including a supplemental drum mounted on said drawing drum, a cable connecting said gripper to said supplemental drum, means adapted to rotate the latter independently of said drawing drum, and means normally limiting rotation of said supplemental drum to one direction.

4. In mechanism of the character described, the combination of a rotatable drawing drum, a gripper, a flexible member connecting the latter with said drum, and means adapted to hold said gripper to said drum against centrifugal force,said means including a supplemental drum mounted on said drawing drum, a cable connecting said gripper to said supplemental drum,vmcans adapted automatically to rotate the latter independently of said drawing drum, and means normally limiting rotation of said supplemental drum to one direction.

5. In mechanism of the character described, the combination of a horizontal drawing drum, links flexibly connecting the latter with said drum, and means adapted to hold said gripper to said drum against centrifugal force, said means including a supplemental drum rotatably mounted on said drawing drum co-axially therewith, a cable connecting said gripper to said supplemental drum, and a weight connected with said supplemental drum and tending to hold the same against rotation with said drawing drum.

6.- In mechanism of V the character de scribed, the combination, of a horizontal drawing drum, links flexibly connecting the latter with said drum, and means adapted normally limiting rotation of said supplemental drum to one direction.

7. In mechanism of the character described, the combination of a horizontal drawing drum, links flexibly connecting the latter with said drum, and means adapted to hold said gripper to said drum against centrifugal force, said means including a spindle rotatably mounted in said drum coaxially therewith, a supplemental drum lyingwithin said drawing drum and fixed to said spindle, a weighted hand wheel lying without the forward face of said drawing drum and likewise fixed to said spindle, a

ratchet wheel on the latter, and a releasable pawl for said'ratchet wlheel carried by said drawing drum, whereby rotation of said supplemental drum may be hmited to a pre-V determined direction.

Signed by-me this 18 day of July, 1925.

WARREN K. XVILLIAMS,