US918590A - Wire-insulating machine. - Google Patents

Wire-insulating machine. Download PDF

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Publication number
US918590A
US918590A US26457005A US1905264570A US918590A US 918590 A US918590 A US 918590A US 26457005 A US26457005 A US 26457005A US 1905264570 A US1905264570 A US 1905264570A US 918590 A US918590 A US 918590A
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Prior art keywords
wire
carrier
clutch
lever
shaft
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US26457005A
Inventor
Frank D Platter
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AT&T Corp
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Western Electric Co Inc
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Priority to US26457005A priority Critical patent/US918590A/en
Priority to US347124A priority patent/US921628A/en
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    • DTEXTILES; PAPER
    • D02YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02GCRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/36Cored or coated yarns or threads
    • D02G3/362Cored or coated yarns or threads using hollow spindles

Definitions

  • My invention relates to a machine for insulating Wire, and has for its object to provide an improved and compact machine which will require practically no skill and the minimum amount of attention on the part of the operator and which will be reliable and efficient in operation.
  • My aim has also been to construct a machine which will avoid the trouble heretofore experienced caused by the unnoticed interruption of the supply of thread or yarn, or the impro )er Winding of the thread upon the wire, and the consequent Winding of a large amount of bare or improperly Wound wire upon the spool with the covered Wire.
  • My invention contemplates a machine comprising a number of rotary cop carriers mounted in compact form Within a suitable framework.
  • the Wire associated with each carrier is led through the carrier and the cop of insulating material supported-there; by. and the carrier in its rotation Winds the material upon the Wire.
  • a main driving shaft is carried bv the frame, and earing is provided for each carrier adapter to drive the same.
  • The. operative connection of the gearing of each carrier 4with the driving shaft is controlled by clutch mechanism individual to suoli carrier, and the clutch mechamsm of each carrier may be operated to stop or start said carrier Without in any way affecting the clutch mechanism associated with the other carriers.
  • the driving shaft may carry a number of gear wheels loosely mounted thereon, one being provided for each carrier, which is adapted when rotated to drive the same.
  • the clutch which controls the operative connection of the gear wheel with the shaft comprises two members, one of said members being loosely mounted upon the shaft and .in frictional engagement with said gear wheel. the other member of the clutch being splined to rotate with the drivin shaft. tith this arrangement, when the cIutch is closed, the gear Wheel, slips upon the clutch member with which it is in frictional engagement and said gear and the carrier driven thereby are gradually brought up to speed. This result is of great advantage, since it enables the thread to be initially fed to the Wire without danger of breaking, and prevents injury to the clutch members when they are thrown into engagement.
  • a lever engages the splined member of the clutch and is adapted to be rocked to close or open the clutch.
  • I preferably provide a handle for rockin the lever in a direction to close the clutc i. Then the supply of thread to the Wire is interrupted or the thread improperly Wound upon the vvire, electromagnetic mechanism is automatically operated to release the lever to rock in a direction to open the clutch.
  • I provide a ⁇ magnet in a circuit terminating upon the frame of the machine and an insulated Contact member through which the Wire passes after being covered.
  • the bare Wire is in contact with the frame of the machine and when it engages the insulated contact it completes a circuit for the magnet., which is thereby energized to open the clutch. Vith this arrangement it Will be seen that. the objectionable spooling of the bare Wire or improperly insulated Wire Will be avoided.
  • a further feature of the invention consists in the provision of automatic brakin mechanism for the carrier.
  • a frictional rake is associated with the carrier adapted to be rendered inoperative when the clutch is closed.
  • the electromagnet referred to above is adapted when energized upon the engagement of the bare wire with the insulated contact member to release the clutch which at the same time will bring the brake into engagement with the carrier, so that the same 1s stopped almost simultaneously with the opening of the clutch.
  • a still further feature of my invention is the arrangement by which I mount the individual heads, making each head a unit which may be readily removed from the frame of the machine and replaced by a new one without disturbing the operation of other heads.
  • This arrangement consists in inclosing the gearing and mounting the bearin s of a cop carrier in an iron frame or casing through which projects a small gear adapted when the casing is in place upon the frame, to mesh with a large gear on the main driving shaft, this casing being held in place by means of screws which are readily removed allowing the carrier and its operating mechanism to be lifted as a unit out of the frame and replaced by a new one While the machine is in operation.
  • Figure l is a front elevation of the wire insulating machine embodying my invention
  • Fig. 2 is an end elevation of the machine
  • Flg. 3 is a vertical sectional view of a single head of the machine on line 3 3 of Fig. 1
  • Fig. 4 is a sectional plan View on line 4 4 of F 1g. 3
  • Fig. 5 is a View in elevation of a portion of a single head
  • Fig. 6 is a sectional view on line 6-6 of Fig. 4
  • Fig. 7 is a detail view of the levers for operating the clutch and brake
  • Fig. 8 is a vertical sectional view of a portion of one of the heads of the machine
  • Fig. 9 is a diagram illustrating the circuit connections of a single head
  • Figs. 10, ll, 12, 13 and 14 are detail views of the clutch mechanism
  • Fig. 15 is a detail view of the catch upon the clutch lever.
  • the machine shown contains two rows of individual heads A mounted upon opposite sides of the machine, each head being adapted to cover wire with insulating material, such as cotton yarn or thread.
  • Each head is provided with a cop a of insulating thread mounted upon a rotar carrier b.
  • the wire to be covered is led rom a spool c through the carrier and cop and around a capstan d, the carrier in its rotation winding the thread from the cop a around the bare wire, which is finally received by the spool c rotated by a belt o: driven by the capstan (l.
  • the cop it will be understood, is loosely mounted upon the carrier and the thread is led through ar hook b upon the carrier to the wire.
  • the rotary carrier of each head is connected with the driving shaft associated with the row of carriers in Which it is included by gear ing under the control of clutch mechanism individual to said carrier.
  • the clutch mechanism of any carrier may be operated to bring the gearing into operative relation to the driving shaft to rotate the gearing and carrier or may render the gearing inoperative, to stop the carrier Without affecting the carriers of the other heads.
  • Each carrier is provided with a gear wheel y loosely mounted upon the shaft f and con nected by intermediate gearing' with the shaft b3 of the carrier b.
  • the operative connection of the gear wheel g with the shaft f is controlled by a clutch L comprising two members 7L h2, the member it being loosely mounted upon the shaft and inclosed by the gear wheel g, which lies in frictional engagement with the periphery thereof.
  • the other member of the clutch is splined to rotate with the shaft and is adapted to be moved along the shaft into or out of engagement with its mate h', the two parts having teethY adapted to mesh together.
  • the member h2 of the clutch may be provided with longitudinal slots it therein in which keys h4 f1.4 secured to the shaft are adapted to ride to spline the clutch member to the shaft.
  • the clutch member la. is provided with a number of holes la. h5 in its periphery in which are mounted frictional pins it LG, preferably of fiber, these pins being curved at their end with a curvature slightly greater than that of the inside surface of the gear g, springs LT 71,7 being located within the holes to bear against the pins and force the same outwardly against the inner surface of the gear g, to maintain a constant and uniform frictional engagement between the clutch member it and the gear g and to take up any wear between said parts.
  • the gear g is pre'ferably hollow and condnfises a hub g2 loosely mounted directly upon the driving shaft and connected by a web gt with the outer driving shell g, the clutch member /i being loosely mounted upon said hub between the same and the shell
  • the clutch member z. is confined within the gear g by a suitable plate secured to the face ot' the shell gr'.
  • Said hub g may be provided with a pair of annular grooves g3 in its inner surface which may be filled with graphite to act as a lubricant.
  • the keys /L4 may be carried upon a collar L" secured to the dri ving shaft and abutting against the end of the hub (2.
  • the clutch member l1? may be mounted to slide longitudinally upon said hubs g2 L". It will thus be seen that when the clutch is closed, the carrier will not be immediately brought up to the speed of the shaft owing to the frictional engagement between the member h of the clutch and the gear g, but, due to the slip, will be gradually accelerated until ⁇ it reaches the desired speed.
  • I provide a easing b3 in which are mounted the gears drivin the cop carrier, the said casing forming a so a frame for bearings 012 bm of the carrier.
  • the shaft d carrying the small gear g is arranged to be disconnected at the oint d.
  • a series ot screws s* s* shown in Flg. l serve to hold the casing 798 on the frame f4 of the machine proper., said frame having an opening ff' through which the small gear g may be drawn.
  • the shaft ot the carrier is hollow to permit the passage of the bare wire therethrough.
  • the carrier l) may comprise a base upon which are mounted the guides 7l for directing the thread from the cop to the wire. the casing having an upturned annular flange b, adapted to support a guard ot sheet metal, shown in dotted lines in Fig. 5, for the cop.
  • the cop is held in place upon the shaft b by a cap 2'y which fits over the cud ot thc shaft, the said cap havingl an opening lor the passage oll the bare wire and an c vc through which the thread is lcd to the wire.
  • a ⁇ rocking arm or lever l is provided lor opening the clutch i. one end of said lever resting in a groove l1* in a ⁇ collar 7i" carried by the spliucd member /f- ⁇ ot the clutch, and being :ulapted to be rocked by thc handle /u to ctt'cct the engagement ot the clutch members, the handle being carried by a ⁇ link l. carried b v the liec or opposite end of the rocking arm or lever.
  • rl he tree end of the rocking arm or lever, to which the handle is attached.y carries a grease reservoir or cup Yr, which is connected by a passage leading through the rocking arm or lever with the groove in the collar h, a ⁇ passage leading to the bearing oi. thc clutch member through holes in the bottom ot' the groove if. to lubricat'e said groove and lwaring together with the thrust bearing off/1 against r".
  • a magnet Z is provided adapted when energized to effect the movement of the lever 1 in a direction to open or disengage the clutch menibers.
  • the lever is provided with a spring J'* which tends to maintain the same in the position shown in Fig.
  • the link lf2 may carry upon the side thereof opposite the handle a pin or hook (as shown in Fig. 7) with which the end of lever 7u engages to lock the lever 7..
  • the end of lever lu is partially out away, as shown in Fig. 7, so that it' will engage the pin or catch 1 in such manner as to insure the locking of the arm Z.
  • the magnet Z is provided with an armature l pivotally supported by the trame of the machine and adapted when attracted to strike the lever and disengage the same from the link fu? allowing the lever Zr to be moved by its slning 7N", to open the clutch.
  • the magnet is arranged to be energized when the supply of thread from the cop n is inter rupted or the wire is improperly coveredr ⁇ and is in a circuit (see Fig. 9) comprising conductors l, Q3 including a source of current B, conductor 1 being connected with the frame of the machine and the conductor 2 being connected with a hollow insulated contact member m carried by the frame of the machine and through which the wire passes after being covered with the insulating thread.
  • the hare Wire will be intermittently or at short intervals brought into engagement with the contact member m, whereby the circuit: of magnet l will he intermittently made and lnolicu.
  • the armature l' is normally maintained in its retracted position by a suitable spring.
  • the contact member 7n arrics at its top a number of conducting halls ⁇ m', in'eferably of metal, which .surround the wire passing therethrough so that the completion of the circuit 1 ⁇ 2, when the supply of thread is interrupted or the Wire improperly wonn l,will he insured.
  • the magnet Z is adapted when energized to automatically open the circuit, 1, 2, in which is included, and remove the current from the head, so that the attendant may remedy the dilliculty or remove the bare or improperly covered wire from the spool c and start the head in operation, Without danger of injury due to the current in the circuit of the magnet.
  • I provide a pair of circuit controlling switch springs Z2 Z2 supported by but insulated from the frame of the machine and serially included in the circuit of magnet Z, the counection whereof is controlled by the lever handle and its link 1?.
  • the link may carry an insulated plunger l adapted When the lever is rocked in a direction to close the clutch members to connect the said springs. Yhen, therefore, the magnet is energized, the lever la is rocked to open the clutch and the plunger Z3 moved to disconnect the terminal springs and break the circuit of magnet removing current from the head.
  • a brake n for the carrier which may comprise a centrally pivoted lever n carrying a brake shoe n2 adapted to engage the base of the carrier.
  • the lever u is adapted to be operated by the end of lever le, and when the magnet Z is energized its armature Z causes said lever le@ to be thrown into engagement with the brake lever n', causing the shoe a? to bear against the carrier Z1, so that. the same is automatically stopped practically simultaneously With the opening of the clutch.
  • the armature Z when attracted moves the lever ic ont of engagement with the link k2 of the clutch lever and the pin ks when the arm is rocked by thc spring fc5, which throws the lever e into engagement with the brake lever n to apply the brake to the base of the carrier.
  • the machine may carry the usual cam mechanismCfor shifting the guide nger c2 feeding the Wire to the spool e to cause the covered wire to be uniformly and evenly wound thercoii.
  • I clai n1 1. ln a wire insulating machine, the co1n hinatiou with a il'rame, ol a cop carrier rotatably supported thereon and arranged to wind insulating thread from the cop upon a wire, mechanism for driving said cop carrier and for feeding the Wire, a magnet, mechanism controlled thereby for stopping said driving mechanism, an insulated contact piece with which the wire engages after passing said cop carrier, and a circuit for said magnet including a source of current and having its opposite terminals connected, respectively, to said contact piece and the frame of the machine.
  • a wire insulating machine the combination with a frame, of a cop carrier rotatably supported thereon and arranged to wind insulating thread from the cop upon a Wire, mechanism for driving said cop carrier and for feeding the wire, a magnet, mechanism controlled thereby for stopping said driving mechanism, an insulated hollow contact piece through which the Wire passes after passing said cop carrier, and a circuit for said magnet including a source of current and having its opposite terminals connected, respectively, to said contact piece and the frame of the machine.
  • a Wire insulating machine the combination with a frame, of a cop carrier rotatably supported thereon and arranged to wind insulating thread from the cop upon a wire, mechanism for driving said cop carrier and for feeding the Wne, a magnet, mechanism controlled thereby for stopping said drivin*r mechanism, an. insulated contact piece with which the Wire engages after passing said cop carrier, a circuit for said magnet including av source of current and having its opposite terminals connected, respectively, to said contact piece and the frame of the machine, and a switch in said circuit automatically opened when said magnet operates to stop said driving mechanism.
  • a wire insulating machlnc the combination with a frame, of a rotary carrier for a cop of insulating yarn, mechanism, for leading Wire to be covered through said coi and carrier, said carrier in its rotation Win ing yarn from said cop around said Wire, a driving shaft, gearing connecting said shaft With said rotary carrier, clutch mechanism controlling the operation of said gearing, a lever controlling said clutch, a magnet adapted when energized to operate said lever and open the clutch, a hollow insulated contact member carried by the frame, through which the Wire passes after being covered, and a circuit for said magnet terminatin upon the frame of the machine and sai Contact member, said circuit terminals being adapted to be connected by the bare wire engaging said contact'y member when the supply of yarn is interrupted.
  • a machine for insulating wire the combination with a carrier for a eop of insulating ⁇ vara ⁇ means for leading wire through said rop aud carrier, the carrier when rotated winding yarn from the rop upon sa id wire, a shaft for said carrier, a main driving shaft, a rluteh carried thereby comprising two members, one of said members being loosely mounted upon said shaft, a gear inelosing said clutch member and in frietional contact with the periphery thereof, intermediate gearing connecting said gear with the carrier shaft ⁇ a ke f u )on the drivine'Y shaft adapted to ride in a longitudinal slot in the other member of the clutch to spline said clutch member to the shaft alid to pei'- mit the two clutch members to be brought into engagement with each other, a collar upon the last-mentioned clutch member having an aniiulai' groove therein, and a rocking lever resting .in said groove to control the engagement of said groove
  • circuit terminals being adapted to be connected by the bare wire engaging said contact member when the supply of yarn is interrupted, and balls of conducting material carried upon the top of said Contact member and surrounding the wi re to insure the completion of said circuit by the bare wire.
  • a wire insulatin machine the combination with a frame, o a rotary carrier for a co of insulating thread, mechanism for leading Wire to be covered through said cop and carrier, said carrier in its rotation Winding thread from said cop around said wire, a drivin shaft, a gear loosely mounted upon said sha t and adapted to drive said carrier, a clutch controlling the operative connection of said gear with the driving shaft, a lever controlling said clutch, a handle for operating said lever to close the eluteh and rotate the rarrier, a brake for the carrier, au operating lever therefor adapted to be withdrawn from said brake when the handle is operated to elose the.
  • a wire insulating machine the combination with a carrier for a cop of insulating yarn, of a shaft upon which said carrier is mounted to rotate therewith, the wire to be covered being led through the interior of said shaft, the carrier in its rotation winding the yarn from said cop about said wire, a capstan around which the wire is led after being covered, a spool for finally receiving the covered wire, mounted to rotate with said capstan, a main driving shaft, a clutch carried by the shaft comprising two mein bers, one of said members being loosely mounted on the shaft, a Gear wheel in frictioiial contact with said lutch member, the other member being splined to rotate with said driving shaft, mechanism controlling the engagement of said clutch members, a shaft carrying a pinion meshing with said gear Wheel, reduction gearing connecting said shaft with the capstan, and intermediate gearing connecting said shaft with the carrier shaft; whereby upon the closing of l said clutch the carrggrfgapstgn Iantitwspoal;are
  • a Wire insulatin machine the combination with a frame, o a cop carrier supported thereby adapted when rotated to wind material from said cop about a moving wire, a driving shaft, mechanism connecting said carrier with said shaft, a rocking arm controlling said mechanism, a magnet and means controlled bynsaid magnet when energized adapted to move said arm to operate said mechanism and stop the carrier, an insulated contact member carried by the frame through which the Wire passes a-fter being covered, a circuit for said magnet terminating upon the frame of the machine and said contact member, said circuit terminals being connected by the bare wire when brought into engagement with said contact member, ⁇ and a switch controlling said circuit opened by said arm when moved by said magnet.
  • a Wire insulating machine the combination with the frame, of a cop carrier supported thereby adapted in its rotation to Wind insulating material from a cop about a moving Wire, a driving shaft, mechanism connecting said carrier and shaft, a rocking arm controlling said mechanism, a mag net adapted when energized ⁇ to rock said lever to operate said mechanism and stop the carrier, an insulated contact member through which the Wire passesafter being covered, a circuit for said magnet terminating upon said contact member and the frame of the machine, said circuit terminals being connected by the bare Wire when brought into engagement with said Contact member, a pair of insulated switch springs in said circuit, and an insulated contact piece carried sai by said lever connecting said springs and adapted when the lever is rocked by said,
  • a Wire insulating machine the com bination with the frame, of a cop carrier supported thereby adapted when rotated to wind material from said cop about a moving Wire, a driving shaft, mechanism connecting said shaft and carrier, a rocking arm con trolling said mechanism, a handle for the arm adapted to rock the same in a direction to operate said mechanism and rotate the carrier, a spring adapted to move the arm in an opposite direction to operate said mechanism to stop the carrier, a spring-actuated lever adapted when the arm is rocked by y said handle to maintain said arm in such position, an electromagnet, an armature therefor adapted when attracted to Withdraw said spring-actuated lever and allow the arm to be rocked in the reverse direction by said spring, an insulated contact memberl through Which the Wire passes after being covered, a circuit for said magnet terminating upon the frame of the machine and said contact member, said circuit terminals hobos adapted to be connected by the bare wire when in engagement with said member, a pair of insulated spring

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Description

F. D. PLATTER.
WIRE INSULATING MAOHINB.
APPLIOATION FILED JUNE 10, 1906. Patented Apr. 20
6 EHEETS-SHEBT 1I F. D. PLATTER. WIRE INSULATING MACHINE.
o' me' Patented Apr. 20, 1909. B BHEETE-BHBET 2.
F. D. PLATTER. WIRE INSULATING MAUHINB.
APPLICATION YILBD JUNE 10, 1905.
Patented Apr.20, 1909. 6 SHEETS-SHEET 3.
:nl uumlr: Irun co.. wasnmurou. n. c.
F. D. PLATTER. WIRE INSULATING MACHINE. APPLIOATIQN FILED JUNE 1o, 1905.
6 SHEETS-SHEET Q Patented Apr. 20, 1909.
I'. D. PLATTER. WIRE INSULATING MACHINE. Arrmoulon mln Juni: 1o. 1905.
Patented Apr.20,1909. 6 SHEETS-'SHEET 5.
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P. D. PLATTER.
WIRE INSULATING MAGHINE.
APrLmATxoN FILED, JUNI: 1o, 1905.
91 8,590. Patented Apr. 2o, 1909.
BSHEETS-SHEET UNITED STATES PATENT OFFICE.
FRAN K D. PLAT'IER, OF CHICAGO, ILLINOIS, ASSIGNOR TO WESTERN ELECTRIC COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.
WIRE-INSULATING MACHINE Specification of Letters Patent.
Patented April 20, 1909.
Application filed June 10. 1905. Serial No. 264,570.
To all whom it may concer-n.'
Be it knovvn that I, FRANK D. Pnvr'rnn, citizen of the United States7 residing at Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in lire-Insulating` Machinos` of which the following is a. full, clear, concise, and exact description.
My invention relates to a machine for insulating Wire, and has for its object to provide an improved and compact machine which will require practically no skill and the minimum amount of attention on the part of the operator and which will be reliable and efficient in operation.
My aim has also been to construct a machine which will avoid the trouble heretofore experienced caused by the unnoticed interruption of the supply of thread or yarn, or the impro )er Winding of the thread upon the wire, and the consequent Winding of a large amount of bare or improperly Wound wire upon the spool with the covered Wire.
In insulatin machines heretofore constructed, the inc ividual heads of the machine have been driven by belts from a main driving shaft belted to the line shaft, but this type of machine required constant attention on the part of the operator to keep the belts in proper adjustment. The attendant must give constant attention to the machine, furthermore, in order to prevent the spooling of a large quantity of bare or improperly covered Wire. Another objection to such machines was that repairs were frequently necessary, and considerable ditliculty and expense were encountered, due to the breaking and Wearing out of the belts. Insnlating machines have also been designed employing gearing for connecting the individual heads to the main driving shaft, but these machines also required constant attention.
My invention contemplates a machine comprising a number of rotary cop carriers mounted in compact form Within a suitable framework. The Wire associated with each carrier is led through the carrier and the cop of insulating material supported-there; by. and the carrier in its rotation Winds the material upon the Wire. A main driving shaft is carried bv the frame, and earing is provided for each carrier adapter to drive the same. The. operative connection of the gearing of each carrier 4with the driving shaft is controlled by clutch mechanism individual to suoli carrier, and the clutch mechamsm of each carrier may be operated to stop or start said carrier Without in any way affecting the clutch mechanism associated with the other carriers.
The driving shaft may carry a number of gear wheels loosely mounted thereon, one being provided for each carrier, which is adapted when rotated to drive the same. The clutch which controls the operative connection of the gear wheel with the shaft comprises two members, one of said members being loosely mounted upon the shaft and .in frictional engagement with said gear wheel. the other member of the clutch being splined to rotate with the drivin shaft. tith this arrangement, when the cIutch is closed, the gear Wheel, slips upon the clutch member with which it is in frictional engagement and said gear and the carrier driven thereby are gradually brought up to speed. This result is of great advantage, since it enables the thread to be initially fed to the Wire without danger of breaking, and prevents injury to the clutch members when they are thrown into engagement.
Another feature of the invention consists in the means Which I have provided for controlling the engagement of the clutch members. A lever engages the splined member of the clutch and is adapted to be rocked to close or open the clutch. I preferably provide a handle for rockin the lever in a direction to close the clutc i. Then the supply of thread to the Wire is interrupted or the thread improperly Wound upon the vvire, electromagnetic mechanism is automatically operated to release the lever to rock in a direction to open the clutch. To this end I provide a` magnet in a circuit terminating upon the frame of the machine and an insulated Contact member through which the Wire passes after being covered. The bare Wire is in contact with the frame of the machine and when it engages the insulated contact it completes a circuit for the magnet., which is thereby energized to open the clutch. Vith this arrangement it Will be seen that. the objectionable spooling of the bare Wire or improperly insulated Wire Will be avoided.
A further feature of the invention consists in the provision of automatic brakin mechanism for the carrier. A frictional rake is associated with the carrier adapted to be rendered inoperative when the clutch is closed.
The electromagnet referred to above is adapted when energized upon the engagement of the bare wire with the insulated contact member to release the clutch which at the same time will bring the brake into engagement with the carrier, so that the same 1s stopped almost simultaneously with the opening of the clutch. I prefer to provide a lever for operating the brake adapted to be operated practically simultaneously with the clutch lever.
A still further feature of my invention is the arrangement by which I mount the individual heads, making each head a unit which may be readily removed from the frame of the machine and replaced by a new one without disturbing the operation of other heads. This arrangement consists in inclosing the gearing and mounting the bearin s of a cop carrier in an iron frame or casing through which projects a small gear adapted when the casing is in place upon the frame, to mesh with a large gear on the main driving shaft, this casing being held in place by means of screws which are readily removed allowing the carrier and its operating mechanism to be lifted as a unit out of the frame and replaced by a new one While the machine is in operation.
I will describe my invention more particularly by reference to the accompanying drawings which illustrate the preferred embodiment thereof, and the particular parts, improvements or combinations which I regard as novel will be pointed out in the appended claims.
Figure l is a front elevation of the wire insulating machine embodying my invention; Fig. 2 is an end elevation of the machine; Flg. 3 is a vertical sectional view of a single head of the machine on line 3 3 of Fig. 1; Fig. 4 is a sectional plan View on line 4 4 of F 1g. 3; Fig. 5 is a View in elevation of a portion of a single head; Fig. 6 is a sectional view on line 6-6 of Fig. 4; Fig. 7 is a detail view of the levers for operating the clutch and brake; Fig. 8 is a vertical sectional view of a portion of one of the heads of the machine; Fig. 9 is a diagram illustrating the circuit connections of a single head; Figs. 10, ll, 12, 13 and 14 are detail views of the clutch mechanism; and Fig. 15 is a detail view of the catch upon the clutch lever.
The same characters of reference are used to designate the same parts wherever shown.
The machine shown contains two rows of individual heads A mounted upon opposite sides of the machine, each head being adapted to cover wire with insulating material, such as cotton yarn or thread. Each head is provided with a cop a of insulating thread mounted upon a rotar carrier b. The wire to be covered is led rom a spool c through the carrier and cop and around a capstan d, the carrier in its rotation winding the thread from the cop a around the bare wire, which is finally received by the spool c rotated by a belt o: driven by the capstan (l. The cop, it will be understood, is loosely mounted upon the carrier and the thread is led through ar hook b upon the carrier to the wire.
A pair of main driving shafts f j', one for each row of heads, extend horizontally through the frame, lying between the row of heads, the shafts being connected by gearing with the shaft of an electric motor mounted upon the base of the frame. The rotary carrier of each head is connected with the driving shaft associated with the row of carriers in Which it is included by gear ing under the control of clutch mechanism individual to said carrier. The clutch mechanism of any carrier may be operated to bring the gearing into operative relation to the driving shaft to rotate the gearing and carrier or may render the gearing inoperative, to stop the carrier Without affecting the carriers of the other heads. Each carrier is provided with a gear wheel y loosely mounted upon the shaft f and con nected by intermediate gearing' with the shaft b3 of the carrier b. The operative connection of the gear wheel g with the shaft f is controlled by a clutch L comprising two members 7L h2, the member it being loosely mounted upon the shaft and inclosed by the gear wheel g, which lies in frictional engagement with the periphery thereof. The other member of the clutch is splined to rotate with the shaft and is adapted to be moved along the shaft into or out of engagement with its mate h', the two parts having teethY adapted to mesh together. The member h2 of the clutch may be provided with longitudinal slots it therein in which keys h4 f1.4 secured to the shaft are adapted to ride to spline the clutch member to the shaft.
The clutch member la. is provided with a number of holes la. h5 in its periphery in which are mounted frictional pins it LG, preferably of fiber, these pins being curved at their end with a curvature slightly greater than that of the inside surface of the gear g, springs LT 71,7 being located within the holes to bear against the pins and force the same outwardly against the inner surface of the gear g, to maintain a constant and uniform frictional engagement between the clutch member it and the gear g and to take up any wear between said parts. By having the curvature of the fiber pins as indicated it is possible to account for the wear of the pins and the consequently decreasing pressure of the springs, for as the pins wear, their surface of contact increases, and as the surface of contact is increased so the pressure of the springs is decreased.
By this means I am enabled to provide an almost constant frictional engagement. The gear g is pre'ferably hollow and condnfises a hub g2 loosely mounted directly upon the driving shaft and connected by a web gt with the outer driving shell g, the clutch member /i being loosely mounted upon said hub between the same and the shell The clutch member z. is confined within the gear g by a suitable plate secured to the face ot' the shell gr'. Said hub g may be provided with a pair of annular grooves g3 in its inner surface which may be filled with graphite to act as a lubricant. The keys /L4 may be carried upon a collar L" secured to the dri ving shaft and abutting against the end of the hub (2. The clutch member l1? may be mounted to slide longitudinally upon said hubs g2 L". It will thus be seen that when the clutch is closed, the carrier will not be immediately brought up to the speed of the shaft owing to the frictional engagement between the member h of the clutch and the gear g, but, due to the slip, will be gradually accelerated until` it reaches the desired speed.
The clutch mechanism above described forms no part of the present invention, but constitutes the subject-n'iatter of a divisional application, Serial No. 347,124, tiled December 10th.y 1906.
I show the gear g meshing with a pinion gts carried by a shaft cZ connected by reduction gearing (Z2 with the capstan (l, the shaft cl carrying a gear b4 meshing with a pinion b5 carried by the shaft L supporting the carrier 7J. Thus when the clutch is closed, the carrier, capstan and spool will be gradually and uniformly brought up to speed.
Referring to Fig. 8, I provide a easing b3 in which are mounted the gears drivin the cop carrier, the said casing forming a so a frame for bearings 012 bm of the carrier. rThe shaft d carrying the small gear g is arranged to be disconnected at the oint d. A series ot screws s* s* shown in Flg. l serve to hold the casing 798 on the frame f4 of the machine proper., said frame having an opening ff' through which the small gear g may be drawn. It will thus be seen that by removing the screws s4 and disconnecting the shaft d at d I may remove the carrier and its driving gears as a unit from the machine and replace it by a new one without in any way disturbing or stopping the operation of the other heads. The shaft ot the carrier is hollow to permit the passage of the bare wire therethrough. The carrier l) may comprise a base upon which are mounted the guides 7l for directing the thread from the cop to the wire. the casing having an upturned annular flange b, adapted to support a guard ot sheet metal, shown in dotted lines in Fig. 5, for the cop. The cop is held in place upon the shaft b by a cap 2'y which fits over the cud ot thc shaft, the said cap havingl an opening lor the passage oll the bare wire and an c vc through which the thread is lcd to the wire.
A\ rocking arm or lever l; is provided lor opening the clutch i. one end of said lever resting in a groove l1* in a` collar 7i" carried by the spliucd member /f-` ot the clutch, and being :ulapted to be rocked by thc handle /u to ctt'cct the engagement ot the clutch members, the handle being carried by a` link l. carried b v the liec or opposite end of the rocking arm or lever. rl`he tree end of the rocking arm or lever, to which the handle is attached.y carries a grease reservoir or cup Yr, which is connected by a passage leading through the rocking arm or lever with the groove in the collar h, a` passage leading to the bearing oi. thc clutch member through holes in the bottom ot' the groove if. to lubricat'e said groove and lwaring together with the thrust bearing off/1 against r". A magnet Z is provided adapted when energized to effect the movement of the lever 1 in a direction to open or disengage the clutch menibers. The lever is provided with a spring J'* which tends to maintain the same in the position shown in Fig. 7, that is, said spring tends to move the lever in a direction to open the clutch members, but when the lever is rocked by the handle /lf in a direction to close the clutch7 a lever 1" is brought into en gagement with the link 'g to lock the lever 1 in such position, said lever la being actuated by a spring T secured thereto. The link lf2 may carry upon the side thereof opposite the handle a pin or hook (as shown in Fig. 7) with which the end of lever 7u engages to lock the lever 7.. The end of lever lu is partially out away, as shown in Fig. 7, so that it' will engage the pin or catch 1 in such manner as to insure the locking of the arm Z. The magnet Z is provided with an armature l pivotally supported by the trame of the machine and adapted when attracted to strike the lever and disengage the same from the link fu? allowing the lever Zr to be moved by its slning 7N", to open the clutch. The magnet is arranged to be energized when the supply of thread from the cop n is inter rupted or the wire is improperly coveredr` and is in a circuit (see Fig. 9) comprising conductors l, Q3 including a source of current B, conductor 1 being connected with the frame of the machine and the conductor 2 being connected with a hollow insulated contact member m carried by the frame of the machine and through which the wire passes after being covered with the insulating thread. Vhen the .supply of thread to the wire is interrupted, and the bare wire cngages the hollow contact member in, the said member and the frame are connected by the bare wire, and the circuit for the magnet Z completed, said magnet thereupon operating the lever 1 to open the clutch 7L. In case the wire is improperly or partially covered, the hare Wire will be intermittently or at short intervals brought into engagement with the contact member m, whereby the circuit: of magnet l will he intermittently made and lnolicu. The armature l' is normally maintained in its retracted position by a suitable spring. and when the successive impulses of current ariI passed through magnet l, said armature \vill he caused to deliver a number ot' sharp blows upon the lever r and thereby eventually disengagc the same from stud c2. The contact member 7n arrics at its top a number of conducting halls` m', in'eferably of metal, which .surround the wire passing therethrough so that the completion of the circuit 1` 2, when the supply of thread is interrupted or the Wire improperly wonn l,will he insured.
The magnet Z is adapted when energized to automatically open the circuit, 1, 2, in which is included, and remove the current from the head, so that the attendant may remedy the dilliculty or remove the bare or improperly covered wire from the spool c and start the head in operation, Without danger of injury due to the current in the circuit of the magnet. To this end I provide a pair of circuit controlling switch springs Z2 Z2 supported by but insulated from the frame of the machine and serially included in the circuit of magnet Z, the counection whereof is controlled by the lever handle and its link 1?. The link may carry an insulated plunger l adapted When the lever is rocked in a direction to close the clutch members to connect the said springs. Yhen, therefore, the magnet is energized, the lever la is rocked to open the clutch and the plunger Z3 moved to disconnect the terminal springs and break the circuit of magnet removing current from the head.
I provide a brake n for the carrier Which may comprise a centrally pivoted lever n carrying a brake shoe n2 adapted to engage the base of the carrier. The lever u is adapted to be operated by the end of lever le, and when the magnet Z is energized its armature Z causes said lever le@ to be thrown into engagement with the brake lever n', causing the shoe a? to bear against the carrier Z1, so that. the same is automatically stopped practically simultaneously With the opening of the clutch. The armature Z when attracted moves the lever ic ont of engagement with the link k2 of the clutch lever and the pin ks when the arm is rocked by thc spring fc5, which throws the lever e into engagement with the brake lever n to apply the brake to the base of the carrier.
The machine may carry the usual cam mechanismCfor shifting the guide nger c2 feeding the Wire to the spool e to cause the covered wire to be uniformly and evenly wound thercoii.
I clai n1 1. ln a wire insulating machine, the co1n hinatiou with a il'rame, ol a cop carrier rotatably supported thereon and arranged to wind insulating thread from the cop upon a wire, mechanism for driving said cop carrier and for feeding the Wire, a magnet, mechanism controlled thereby for stopping said driving mechanism, an insulated contact piece with which the wire engages after passing said cop carrier, and a circuit for said magnet including a source of current and having its opposite terminals connected, respectively, to said contact piece and the frame of the machine.
2. In a wire insulating machine, the combination with a frame, of a cop carrier rotatably supported thereon and arranged to wind insulating thread from the cop upon a Wire, mechanism for driving said cop carrier and for feeding the wire, a magnet, mechanism controlled thereby for stopping said driving mechanism, an insulated hollow contact piece through which the Wire passes after passing said cop carrier, and a circuit for said magnet including a source of current and having its opposite terminals connected, respectively, to said contact piece and the frame of the machine.
3. In a Wire insulating machine, the combination with a frame, of a cop carrier rotatably supported thereon and arranged to wind insulating thread from the cop upon a wire, mechanism for driving said cop carrier and for feeding the Wne, a magnet, mechanism controlled thereby for stopping said drivin*r mechanism, an. insulated contact piece with which the Wire engages after passing said cop carrier, a circuit for said magnet including av source of current and having its opposite terminals connected, respectively, to said contact piece and the frame of the machine, and a switch in said circuit automatically opened when said magnet operates to stop said driving mechanism.
4l. In a wire insulating machlnc, the combination with a frame, of a rotary carrier for a cop of insulating yarn, mechanism, for leading Wire to be covered through said coi and carrier, said carrier in its rotation Win ing yarn from said cop around said Wire, a driving shaft, gearing connecting said shaft With said rotary carrier, clutch mechanism controlling the operation of said gearing, a lever controlling said clutch, a magnet adapted when energized to operate said lever and open the clutch, a hollow insulated contact member carried by the frame, through which the Wire passes after being covered, and a circuit for said magnet terminatin upon the frame of the machine and sai Contact member, said circuit terminals being adapted to be connected by the bare wire engaging said contact'y member when the supply of yarn is interrupted.
5. ln a machine for insulating wire. the combination with a carrier for a eop of insulating `vara` means for leading wire through said rop aud carrier, the carrier when rotated winding yarn from the rop upon sa id wire, a shaft for said carrier, a main driving shaft, a rluteh carried thereby comprising two members, one of said members being loosely mounted upon said shaft, a gear inelosing said clutch member and in frietional contact with the periphery thereof, intermediate gearing connecting said gear with the carrier shaft` a ke f u )on the drivine'Y shaft adapted to ride in a longitudinal slot in the other member of the clutch to spline said clutch member to the shaft alid to pei'- mit the two clutch members to be brought into engagement with each other, a collar upon the last-mentioned clutch member having an aniiulai' groove therein, and a rocking lever resting .in said groove to control the engagement of said eluteh members, whereby when the clutch is closed the carrier is gradually brought up to the speed of the driving shaft.
(3. ln a wire insulating machine, thc coinbination with a frame, of a rotary carrier for a cop of insulating yarn. mechanism for leading wire to be covered through said cop and Carrier, said carrier in its rotation winding yarn from said cop around said wire, a driving shaft, gearing connecting said shaft with said rotary Carrier, clutch mechanism controlling the operation of said gearing, a lever controlling said clutch, a handle for said lever for closing said clutch to operate the carrier, a magnet adapted when energized to operate said lever and open the clutch, a hollow insulated Contact member carried by the frame, through which the wire passes after being covered. a circuit for said ma net terminating upon the frame of the mac iine and said contact member, said circuit terminals being adapted to be connected by the bare wire engaging said contact member when the supply of yarn is interrupted, and balls of conducting material carried upon the top of said Contact member and surrounding the wi re to insure the completion of said circuit by the bare wire.
7. In a wire insulatin machine, the combination with a frame, o a rotary carrier for a co of insulating thread, mechanism for leading Wire to be covered through said cop and carrier, said carrier in its rotation Winding thread from said cop around said wire, a drivin shaft, a gear loosely mounted upon said sha t and adapted to drive said carrier, a clutch controlling the operative connection of said gear with the driving shaft, a lever controlling said clutch, a handle for operating said lever to close the eluteh and rotate the rarrier, a brake for the carrier, au operating lever therefor adapted to be withdrawn from said brake when the handle is operated to elose the. clutch, a magnet` an armature therefor adapted when attracted to simultaneously operate said levers to open the rlnteli and apply said brake to the carrier, an insulated contact member through wliieh the wire passes after being covered` and a circuit for said magnet terminating upon said contact member and the frame of the machine, said circuit terminals being adapted to be connected by the bare wire when the same reaches said Contact member.
S. ln a wire insulating machine, the combination with a rotary carrier for a rop of insulating thread, means for leading wire to be covered through said cop and carrier, said carrier in its rotation winding the tb read from said cop about said wire, a driving shaft, a` clutch carried thereby Comprising two members, one of said members being loosely mounted upon the driving shaft, a
gear wheel inclosing saidV member and in4 frictional Contact with the periphery thereof, the other member of said clutch being splincd to rotate with said driving shaft. means for controlling the engagement of said clutch members, a spool upon which the wire is wound after being covered, a capstan for leading the wire to said spool, a shaft d geared to rotate with said gear wheel, gearA ing connecting said shaft with the capstan to rotate the saine, a shaft carrying said rotary carrier, and gearing connecting said shaft with the shaft d', whereby the capstan, spool and carrier are gradually and uni formly brought up to speed upon the closure of the clutch.
9. In a wire insulating machine, the combination with a carrier for a cop of insulating yarn, of a shaft upon which said carrier is mounted to rotate therewith, the wire to be covered being led through the interior of said shaft, the carrier in its rotation winding the yarn from said cop about said wire, a capstan around which the wire is led after being covered, a spool for finally receiving the covered wire, mounted to rotate with said capstan, a main driving shaft, a clutch carried by the shaft comprising two mein bers, one of said members being loosely mounted on the shaft, a Gear wheel in frictioiial contact with said lutch member, the other member being splined to rotate with said driving shaft, mechanism controlling the engagement of said clutch members, a shaft carrying a pinion meshing with said gear Wheel, reduction gearing connecting said shaft with the capstan, and intermediate gearing connecting said shaft with the carrier shaft; whereby upon the closing of l said clutch the carrggrfgapstgn Iantitwspoal;are-` gradually brought up to'speed Wit a corre` spending acceleration.
10. In a Wire insulatin machine, the combination with a frame, o a cop carrier supported thereby adapted when rotated to wind material from said cop about a moving wire, a driving shaft, mechanism connecting said carrier with said shaft, a rocking arm controlling said mechanism, a magnet and means controlled bynsaid magnet when energized adapted to move said arm to operate said mechanism and stop the carrier, an insulated contact member carried by the frame through which the Wire passes a-fter being covered, a circuit for said magnet terminating upon the frame of the machine and said contact member, said circuit terminals being connected by the bare wire when brought into engagement with said contact member,` and a switch controlling said circuit opened by said arm when moved by said magnet.
11. In a Wire insulating machine, the combination with the frame, of a cop carrier supported thereby adapted in its rotation to Wind insulating material from a cop about a moving Wire, a driving shaft, mechanism connecting said carrier and shaft, a rocking arm controlling said mechanism, a mag net adapted when energized` to rock said lever to operate said mechanism and stop the carrier, an insulated contact member through which the Wire passesafter being covered, a circuit for said magnet terminating upon said contact member and the frame of the machine, said circuit terminals being connected by the bare Wire when brought into engagement with said Contact member, a pair of insulated switch springs in said circuit, and an insulated contact piece carried sai by said lever connecting said springs and adapted when the lever is rocked by said,
ma nettodisconnect said springs, and open circuit.
l2. In a Wire insulating machine, the com bination with the frame, of a cop carrier supported thereby adapted when rotated to wind material from said cop about a moving Wire, a driving shaft, mechanism connecting said shaft and carrier, a rocking arm con trolling said mechanism, a handle for the arm adapted to rock the same in a direction to operate said mechanism and rotate the carrier, a spring adapted to move the arm in an opposite direction to operate said mechanism to stop the carrier, a spring-actuated lever adapted when the arm is rocked by y said handle to maintain said arm in such position, an electromagnet, an armature therefor adapted when attracted to Withdraw said spring-actuated lever and allow the arm to be rocked in the reverse direction by said spring, an insulated contact memberl through Which the Wire passes after being covered, a circuit for said magnet terminating upon the frame of the machine and said contact member, said circuit terminals heilig adapted to be connected by the bare wire when in engagement with said member, a pair of insulated springs serially included. in said circuit, and an insulated contact plunger carried by said handle adapted when the arm is held by said springactuated lever to connect said springs, said handle and plunger being moved out of engagement With said springs when said spring-actuated lever is Withdrawn.
In witness whereof, I hereunto subscribe my name this 12th day of April A. D., 1905.
FRANK I). PI AATTER.
US26457005A 1905-06-10 1905-06-10 Wire-insulating machine. Expired - Lifetime US918590A (en)

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