US1506871A - Machine for covering wire or other cores - Google Patents

Description

Sept.. 2 1924. 1 1506,871

E. E. WAIEE MACHINE F0! COVERING WIRE OR OTHER CORBS Filed April 6, 1922. I5 Sheets-Sheet 1 avwmboz $5 (l 6 60mm.

"Se t. 2. 1924.- 1,506,871

E. E. WAITE MACHINE FOR COVERING WIRE on b'rusa corms Filed April 6, 1922 3 s ee s-shee z (imam/two if WA/Tf. 35 W (l-thou L3 Sept, 2. 1924,. I 1,506,871

E. E..WAITE MACHINE FOR COVERING WIRE OR OTHER GQRBS I Filad April 5, 1922 S'Sheete-Sh eat 5 nome; [I WA/Vf. 553A fltiozueq To. all whom :it may concern:

Patented Sept, 2 1924 i l w UNITED STATES Application filed April e,

Be it known that I, EDWIN E. WAI'rE, a

. citizen :of the United States, residing at form.

Framingham, county ofMiddleseX, State of" Massachusetts, have invented'acertainnew and useful Improvements in Machines for Covering Wire or Other Cores, of which the following is a full, clear, and exact descript1on. i i

The present invention relates to amachine for covering. wire or other core with roving particularly 'of, asbestos fibre, and has for its object to provide a .novel and improved machine of this character.

The several featuresof the invention will be clearly understood from the following description and accompanying drawings, in

V which Fig. 1 isa front view, partly broken away and partly in section, of a machine-that may be employed in producing my improved insulated conductor. in accordance with 'my improved method; g

Fig. 2 is a sectional plan viewfon'an enlarged scale taken on the line 2'2 of Fig. 1- showing particularly a portion of the winding mechanism of the machine,

Fig. 3 is a detail front elevation, partly in section, of a portion of the machine, ihog'ing particularly a part of" the winding .Fig. 4 is a sectional view, partlyinelevation, taken'on the line 4-4 of Fig. 3;

Fig. 5 is a vertical sectional view, partly in elevation, of a portion. of the machine showing particularly. the winding mechanism and itsdriving mechanism; and

. Fig.6 is an elevation .of the insulated or. covered conductor or WlIB, in its preferred The frame of the machine illustrated in the drawings is provided with legs 2, horizontal supporting plates 4 and 6, and-a pair of vertical side standards8 mounted on the plate 6. The operating mechanism of the machine comprises .a wiping head 10: and a wire take-upor delivery mechanism comprising a delivery drum 12 which is carried by a shaft 14 having its endsjo'urnaled in suitable bearings in the upper ends of the standards 8, the wirepassing one or more times around the'deliverv drum after leaving the wiping head. The wipinghead is. carried on the upper end of a vertical hollow shaftv or spindle 16, the lower portion of which extends through and is journaled in 1,506,871 PATENT OFFICE. Q

i EDWIN-E. WAITE, OF FRAMINGHAM M ASSIAQEUSETTS, I

1922. Serial No. 556,216..

passing through the hollow spindle 16 and the wiping head. The spindle 16 and the delivery drum 12 are driven in proper timed relation through suitable connections with a driving pulley'18 on the base of the machine.

The wiping head-is provided with a base 20 having an inverted 'U-shaped frame; 22

ing head is further provided with a pair of 1;; I mcnnvn non COVI'ERINGWIRE 0 0mm oonns.

projecting upwardly therefrom. The wip--x upwardly and inwardly, inclined and upwar'dly tapered. rolls 24, the'ends of which are mounted on conical bearings in the base of the wiping head and in the top part of..

the frame 22 so as to'be freely rotatable.

The wipinghead is also provided with a presser plate 26 .havingits inner surface in clined downwardly and outwardly, the

presser plate-and rolls 24 being relatively arranged so as to-contact at-substantially equally spaced points with the wire. The

plate 26 is loosely mounted on apin 28 hav- 7 ing its lower end secured in the base 20' of The plate 26 is pressedthe wiping head. 7 upon the wrapped wireby -means of a spring 30.0oiled about the pin '28 and having one end engagingthe plate and its other end secured to the pin. The plate 26- 1s movably mounted on the pin 28,- being inter posed between thespring 30 and a nut'32 secured to the upper end of the pin, the

pressure of the plate. being capable of adjustment by the rotation ofthe nut'32 and ,pin 28, which areheld in adjusted position by a set screw 33. -The wiping head is also provided with a horizontal guideroll 34- having its ends mounted on conical bearings on the base of the .head. A ribbon deflecting member. is arranged between the guide 1 roll 34 and the conical rolls 24, which comprises a wire havinga portion 36 nclined "tothe horizontal and downwardly ,extending vertical end portions 40 secured inthe set screws 37.

A table 42 is mounted on; the vertic aal I spindle-16below the wiping'head and'isi'sebase. The wire is adjustablysecured by upper end of a supporting pin 50 ex tendir'ig, "I

through the. sleeve and having its lower end secured to the table 42, the guide roll being held from lateral swingin' movement on the supporting pin 50 by means of a hear ing collar 52 secured in the lower end of the sleeve and surrounding the supporting pin which construction enables the guide roll to be of light weight and to turn freely on its supporting pin. 7

'A cop support 54 is mounted on the spindle 16 adjacent the top of the table 42. The cop supportis made of light sheet metal such as aluminum so as to have a little inertia and is provided with an upwardly projecting thimble or shank 56 which is secured to a carrier 58 mounted on a ball bearing 60 on the spindle 16. The ball bearing 60 comprises a fixed ball retaining cone 62, and a retaining cone 64 mounted to slide on the spindle 16. The retaining cone 64 is pressed toward the re taining cone 62 by a spring 66 coiled about the spindle 16 and'interposed between the cone and a nut 68 screw-threaded on the spindle. The spring 66 is for the purpose of placing a slight drag on the cop. support and its carrier. the tension of which may be adjustedfby adjusting the nut .68, a lock. nut 69 being provided for the nut 68.

The machine is particularly adapted for producing the insulatedor covered conductor or wire illustrated in Fig. 6 of the drawings, in which the covering consists of a plurality of rovings 70 of asbestos fibre arranged side by side and wound in closed COilsor helices with the rovings matted together'to form a substantially uniform cohering mass. The .rovings are supplied to the machine in a cop 72 which is made up of a flat ribbon 74 of rovings, which in the present instance consists of five arranged side by side, the ribbon being wound in crossed helices on a paper tube or core 76'. In setting the machine for operation a pluralityof cops are supplied to the machine before the wire is threaded through the wiping head, and the cop first to be used is applied to. the cop support 54 by slipping the cop tube or core over the shank 56 of the support, the extra or reserve cops being supported on a cop supporting tube 78 through which the wire passes when the machine is in operation as in ordinary winding machines. After a cop is placed on the cop support 54, the wire is threaded through the wiping head, and cop supporting tube 78, and wound one or more times about the delivery drum 12. The end of the fiat ribbon 74 of roving is then passed around the vertical guide roll 46. then over the horizontal guide roll 34, then beneath the deflecting member 36, and then to the wire whereit is coiled one or more times about the wire at a point adjacent to the taper-' ing rolls 24, the presser plate 26 being swung back from the wireto enable the operator to easily apply the ribbon to the wire. The ribbon is thus applied to the wire in a substantially flat condition, the deflecting member 36 determining the angle at which the ribbon. isfinally presented to the wire.

It will be apparent when the machine is thrown into operation that the ribbon will be freely delivered to the wire and wound helically thereon in closed coils, the spindle 16 and parts carried thereby constituting a winding head; that the tapering rolls 24 will operate to apply a gradually and progressively increasing pressure to the forming end portion of the covering to uniformly mat it about the wire; and that the presser plate 26 will act to. burnish and smooth the covering uniformly and to cooperate. with the rolls' 24 to form the covering into a uniformly cohering mass "of uniform character and texture throughout. 7

It has been found that asbestos rovings of long or short fibre may be used. in the machine illustrated in the drawings without be so placed in the machine that its "un winding movement is in the same direction as the rotation of the rotating table 42.

In the drawings the wire on which the asbestos rovings are to be Wound is shown as provided with a coating orcovering 80 of rubber, but it will be apparent that, the

machine may also be used for covering' hare wire or other material with asbestos or other roving. I

As will be evident to those skilled in the artmy invention permits of-variou's modifications without departing from the spirit thereof or the scope of the appended claims.

W'hatIclaimis: "'7

1. A machine for cOV E a Q iw roving having; incombinatio'rn a rotating windmg head. means for feeding the core axially through the head. means mounted on the head for feeding apluralityl of parallel, rovings to' the core whereby they are wound on the core. and a pair of freely rotatable tapering rolls carried by the head and arranged at opposite sides of the core for applying a gradually increasingpressure to the v rovings as they are being applied tothe core.

2. A machine for' cove ring a core with roving having, in combination. a rotating winding head. means for feeding the core axially through the head. means mounted-.on

the head for feeding a plurality of parall el rovings to the core whereby they are wound on the core, and a pair of freely rotatable tapering rolls and a spring pressed plate acting on the rovings as they are applied roving having, in combination, a rotating.

winding head, means for feeding the core axially through the head, means mounted on the head for feeding a plurality of parallel rovings to the core whereby they are wound 011 the core, and pressure applying devices carried by the head and contacting with the rovings after they are wound on the core at three points equally spaced about the periphery of the core for applying a gradually increasing pressure to the roving.

4. A machine for covering a core with a flat ribbon composed of a plurality of rovings of asbsetos fibre or the like arranged side by side having, in combination, a hollow shaft vertically arranged through which the core is fed, devices arranged at the upper end of the shaft for applying and matting the roving about the core as the core emerges from the upper end of the shaft, a support for a cop of said ribbon of roving mounted on ball-bearings below said devices so as to be freely rotatable with relation to said shaft, and having its axis of rotation in alinement with said shaft, and a guide roll carried by said shaft and rotatable relatively thereto, said roll having its axis parallel to and spaced away from the axis of said shaft, and acting to guide the ribbon of the roving from said cop to said devices.

5. A machine for covering a core with a flat ribbon composed of a plurality of rovings of asbestos fibre orthe like arranged side by side having, in combination, a 1101 low shaft vertically arranged through which the core is fed, devices arranged at the upper end of the shaft for applying and matting the roving about the core as the core emerges from the upper end of the. shaft, a

support for a cop of said ribbon ofroving mounted to turn freely about said shaft, and means for guiding the ribbon from said cop, said devices comprising a roll in the form of a sleeve, and a vertical bearing pin spaced from and'carried by said shaft, the upper ends of said pin and sleeve havinga needle point bearing between them whereby said sleeve is hung on the upper end ofthe pin and is freely rotatable. I

6. A machine for covering a core with a fiat ribbon composed of a plurality of rovings of asbestos fibre or the like arranged side by side having, in combination, a 1101- low shaft vertically arranged through which the core is fed, devices arranged at the upper end of the shaft for applying and matting the roving-about the core as the core emerges from the upper end of the shaft, comprising freely rotatable rolls adapted to contact directly with the ribbon upon said core, asupport of little weight and low specific gravity mounted on said hollow shaft and freely rotatable with relation to said shaft, and a freely rotatable roll carried by, spaced from and having its axis parallel with said shaft for guiding the ribbon of roving from said cop to said devices.

EDXVIN. E. VVAITE.

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