US2331798A - Wire drawing and spooling system - Google Patents

Description

Oct. 12, 1943. c. E. ORR

WIRE DRAWING AND SPOOLING SYSTEM 1942 5 Sheets-Sheet 1 Filed Jan. 1

-INVENTOR. Carroll E. Orr BY M G-EM JW '4 TTOENE Y5 Oct.12, 1943. c. E. ORR

WIRE DRAWING AND SPOOLING SYSTEM Filed Jan. 1, 1942 5 Sheets-Sheet 2 R. w cu mE 1w 1 l w M w H T M A Z 4 M :4 5 m w 44 T TORNE Y5 12, 9 3- c. E.-oRR 2,331,798

WIRE DRAWING AND SPOOLING SYSTEM Filed Jan. 1, 1942 5 Sheets-Sheet 5 IN VEN TOR. Carro M E. Orr

FIJ'TORNE Ys Oct.12,1943. c. E. O-RR 2,331,798

WIRE DRAWING AND SPOOLING SYSTEM Filed Jan. 1, 1942 5.Sheets-Sheet 4 IN V EN TOR. Car/'0 L! E. 01m

H7701? NE Y6 c. E. ORR 2,331,798 WIRE DRAWING AND SPOOLING SYSTEM Filed Jan. 1, 1942 5 SheetsSheet 5 Oct. 12 1943.

$25 @5225. EE Ow mu INVENTOR. BY Carroll Orr m.hd

14 T TORNE Y5 sued April 1, 1941. The

Patented Oct. 12, 1943 2,331,798 WIRE DRAWING AND SPOOLING SYSTEM Carroll E. Orr, Orange,

Machine Company, tion of New Jersey N. J., assignor to Syncro Rahway, N. J., a corpora- Application January 1, 1942, Serial No. 425,257

21 Claims.

This. invention is broadly concerned with improvements in machines for spooling or coiling strands of any kind such as tape, wire, ribbon, strip, thread and the like, regardless of the material of which such strands are made.

More specifically this invention relates in general to improvements in a mechanism combination comprising primarily a wire drawing machine and a take-up for spooling the wire, including the usual accessories for such a combination.

An object of this invention is to provide a substantially automatically operating system for controlling the operation of a combined wire drawing machine and spooler to perform a novel set of conditions or sequence of operations during the starting and the stopping thereof.

In a general sense with reference to the embodiment herein selected to illustrate the invention it involves the driving of a spooler by means of an electric motor through a magnetic slip clutch, the energization which is controlled or regulated by the formation of a loop in the wire being processed between the wire finishing capstan of a wire drawing machine and the .spool. The changes in the size of the loop with changes in tension in the wire operates an induction regulator which controls the supply of energizing current to the clutch. The purpose of this mechanism is to maintain a desired uniform tensionin the length of the wire between the finishing capstan and the spool. The fundamental combination of this portion of the mechanism is disclosed in. United States Patent No. 2,237,112 isfinishing capstan in such a combination is power driven from a suitable source, as for example in this case from the main motor which drives the drawing blocks of the wire drawing machine. In the operation of such machines the difliculty of breakage of the wire, especially during the starting and stopping of the machine, is encountered by reason of the fact that abnormal stresses are set up in the wire dur-' ing these periods. In this invention a control system is provided which is interlocked with the controls of the main or wire drawing motor to insure against such breakages.

In accordance with this invention there is provided a mechanism for disconnecting the finishing capstan driving shaft from the power source during stopping. During starting the main motor is energized, bringing the wire drawing machine and the finishing capstan shaft up to speed in the normal manner, during which period the finishing capstan shaft is connected to its power source. The drive for the spooler is energized at the same time, and a 'brake associated therewith is released at the beginning of the starting period so that the spooler likewise comes up to normal speed in accordance with usual operations when employing a magnetic slip clutch of the type referred to. At the endof a predetermined period of time of suflicient length to allow the mechanism just described to reach its full normal speed, the current to the magnetic clutch is automatically adjusted to proper operating value. The mechanism then continues to run under the control of an automatic timer, so that at the end of a further predetermined period within which the spool is allowed to fill, the machine is manually or automatically controlled to bring it to a stop.

The automatic means operates to put a capstan timer in operation, which in turn disconnects the finishing capstan from its shaft. The brake is applied to the spooler shaft, 2. zero speed switch is put into operation, and resistances inserted in the energizing circuit of the magnetic clutch. The spooler then gradually comes to a stop with the main motor circuit under the control of the zero speed switch so that just as or slightly prior to the spooler stopping, the main motor is deenergized. During the decelerating period the relatively massive loaded spool serves to draw wire from the wire drawing machine as required by the spool, and during which period the finishing capstan is driven only by the wire.

As a final phase in stopping the main timer is deenergized and additional resistances put into the energizing circuit of the magnetic clutch so that only a stand-by value of current is supplied to it. After the machine is stopped the capstan timer operates to reconnect the finishing capstan with its driving shaft. The entire mechanism is now at rest and is in condition to be started when a new spool is placed in the machine.

The full details, nature and advantages of the invention will become more apparent from the following detailed description of the embodiment thereof as illustrated in the attached drawings.

This invention resides substantially in the combination,-construction, arrangement and relative location of parts, as will be described in detail below.

In the accompanying drawings,

Figure 1 is a side elevational view of the mechanism of this invention showing but a portion of the wire drawing machine; s

Figure 2 is an end elevational view of the shafts. Thus,

mil-9115mm 1: a

Figure 6 is a diagrammatic circuit illustration of the complete system of this invention.

The right hand end portion of a wire drawing machine is illustrated at l0. One of the capstan assemblies of this machine has been indicated by the reference numeral ll. A s shown in Figure 4, this assembly is mounted upon a shaft H, which is driven by the main driving motor, not shown. Shaft II is provided with a sprocket wheel which is connected bya'drive chain J3 with another sprocket wheel ll secured to the clutch part it rotatably mounted on the capstan shaft N. .The' finishing capstan II is secured to the shaft ll, as clearly shown in Figure 4. A switch to be referred to later is normally held closed by means of a roller ll whichengages the wire W in normal operation of the machine.

The wire W passes from the: capstan I I through i die I, and after making several turns about the iinishini capstan II, extends to and-partially around a grooved wheel II from which it extends back to the finishing capstan l 5 and partly there- .around so that it-may extend therefrom horilontally to the grooved guide wheel 21 in the distributing device 2! ofthe spooler. The wire between a pair of grooved guidewheels II in its travel from the finishing capstan [5 to the spooler. The utility of the guide wheels 25 is apparent when it is recalled that the spooler guide-wheel 21 reciprocates back and forth axially with respect to the spool as the wire is wound ,therearound. This is in accordance with common practice in the spooling art.

The wheel I! is rotatably, mounted on an arm II which is secured tion regulator 23. An extension 20 of the arm llis provided with a series of adjustable weights 2|. A dash pot 22 is connected to the arm 28 so as to dampen the movement thereof. A pair of stops it are provided to limit the movement 'of the arm and the induction regulator within a proper range, as illustrated by means of the dotted positions for the wheel I! (see Figure 1).

The spool 28 is removably mounted on-the spooler shaft 10, which is mounted within the 'spooler housing 26. The magnetic slip clutch is shown diagrammatically at 3i. As disclosed in the before mentioned patent, it consists generally of a magnetizing winding and a pair of aligned disconnected shafts having a pair of discs on the adjacent ends thereof. One of these discs is magnetizable and has a plurality of pole pieces which sweep by a squirrel cage winding or other suitable conductor mounted on the other disc in which eddy currents are generated and thereby providing a as illustrated in Figure 15,-one. of these shafts is driven from the spooler motor 38 through a suitable sprocket and chain drive to the shaft is of an induc-- magnetic coupling between the'two by a belt to a pulley 31 on the zero speed switch 38. The details of construction of this switch have not been illustrated since there are several well known forms available. The principle of this switch is simply that when the spooler is in motion the switch 38 is closed, but just as the spooler stops, or drops to a predetermined speed, this switch opens.

The spooler shaft is provided with a spring applied brake 39, which brake is released by means of a solenoid 40 (see Figures 1 and 5). Any spring set type of brake is suitable for the purpose, and therefore the details thereof will not be referred to, although a. suitable construction is indicated in Figure 1.

Turning now to Figures, it will be recalled that the clutch element 42 is driven by the chain II and is free for rotation on the shaft l4. The cooperating clutch element 48 is splined to the shaft It by means of a key 44 so that it may be slid on the shaft so as to disengage from the clutch part 42. As is shown quite clearly in Figure 3, the clutch part 43 may be slid axially by means of the yoke 46 against adjustable spring 49 by means of a solenoid 48, the linkage system 41 and the shaft 48, to which the yoke is attached. When the solenoid is energized the clutch elements are disengaged.

Reference is now made to Figure 6 wherein the The spooler motor 33 is shown connected by the cable 52 to the switch 5| so that when the switch is closed this motor is energized. The primary of a transformer 53 is connected at one terminal by the wire 56 to one leg of one phase of the power circuit, while the other terminal is connected by wire 55 to the other leg of that phase so that -31. The other shaft is connected by means of a pinion II and a gear 14 driven thereby to the spooler shaft 30, on which the latter gear is moimted. The distributor 28 is driven from the shaft 10 through the spur gear 28' and the gear 18", and additional drive mechanism not shown, in accordance with usual practice. The shaft 86 is provided with a pulley It which is connected transformer 53 is connected across one phase of this circuit.

One terminal of the secondary of transformer 53 is connected by wire 56 to the relay coil 58 and the motor coil 58' of the main timer 58. This is the timer which shuts the machine down when the spool is loaded. It is of a type very well known. in the'art employi g a motor which may be set to run for any one of a number of time periodsof various length within its range. The motor winding 58" is connected through a normally closed v limit switch 58", as shown, which switch controls the timer motor winding 58. The common terminals of the windings 58' and 58' are connected by wire 59 to a switch 60 which serves to connect wire 59 to wire I when it is closed. This switch is interlocked with the main or wire drawing motor circuit so that when that motor is energized switch closes. Wire 8| returns to the other side of the secondary of transformer 53. The common terminal of the windings of the timer are connected through a switch 51 (which opens at end of timing period) to one terminal of the operating winding of relay 89, the other terminal of which is connected by wire 88 to wire 56 and secondary of transformer 53. The relay 68 operates four switches 69*, 68, 09 and 69 Wire -54 is connected to one terminal of the winding 'ofrelayii' and to one terminal of the solenoid lB, .which operates the capstan clutch previously .described. The other terminal of sole-- noid 48 is connected to one contact of switch it this resistor is connected scription of the 2,381,798 controlled by the relay 55 through a thermal overload switch 65 which serves to open the circuit upon overload thereof. The other terminal of switch 66 is connected by wire 61 to the leg of the phase opposite from which wire t extended.

The other terminal of the winding of relay 55' is connected by wire 62 to a switch 65* in the capstan timer, which is connected in series with the switch 65" and a return wire 63, which goes back to the leg of the phase opposite from which wire 5% extended. The capstan timer 84 is simis: to the othertimer, in that it has a relay winding li and a timer motor winding 75. This timer maybe set-"to operate at difierent time intervals. One terminal of the winding 76 is connected by Wire 73 to the wire 5d. The other terminal is connected to one terminal of the winding l5 and by wire 16 to one side of switch 69 The other terminal of winding it is connected through normally closed limit switch 65' to a tapped point on the winding id. The switches M and 64!" (which operate at end of timing period), are operated by the timer motor and associated winding 75. The other side of switch 69 is connected by wire 72 to the opposite leg of the phase to which the wire 54 is connected. Wire 72 also goes to a switch 77 by means of which it may be connected to wire H when desired.

Wire 54 is connected by wire it to one terminal of the brake solenoid (it. The other terminal of this winding is connected by wire it to switch it and to one terminal of switch 69 the other terminal is connected to wire it.

One terminal of the secondary of transformer 53 is connected by a other pole of switch W,

secondary oi the regulator are connected by thewires 19 to an alternating current bridged rectl- Her 80 employing rectifiers of any suitable type such as the copper oxide plate iectiflers. The output or D. C. terminals, of these rectlfiers are connected to the wires ti and 8?. Wire 8! is oon= nected to one terminal of the energizing winding 82 of the magnetic slip clutch 3i and its other terminal is connected by wire 83 to one terminal of switch 69, and to an adjustable contact on the clutch resistor 8 The other terminal of by wire 85 to one terminal of the adjustable clutch resistor 88. The other and movable contact of nected by wire 87 to the other terminal of the rectifier and to one of the contacts of switch 88. The midpoint of the resistors is connected to the other contact of switch 88. Switch 88 is operated by a coil which is interconnected with the contactore of the main motor control so that switch 88 opens when the last acceleratin contactor oi the set is closed. Thezero speed switch at is also inseries with the switch 91) controlled by the trac- 83 and its other terminal is connected by wire 92 back to the holding circuit. Wires Q! and 92 may be shunted by the switch 59.

- The exact nature of this invention will now become apparent from the following detailed deoperation of the entire appara-- this resistance is con-=- 65 tion wire switch operator it previously referred tus. It will facilitate an understanding of the circuit of Figure 6 to note that the various parts are shown in de-energized position both with respect to circuit and themain motor controls.

5 In order to set the machine inl operation switch 1 Si is closed. This results in the energization slip clutch,

the other side of the rectifier. The stand-by current is of such a low value that the running motor 33 does not cause rotation of the spooler shaft.

25 previously described.

to be started. In order to start the parallel, wire 59, the other terminal of winding 6% is energized wires as and 68, through switch 5? over wire 49 as as before. Switches se switch 69 opens.

ing of switch de places the portion of resistor 86 previously in circuit, thereby increasing the current to the energizing winding of the magnetic slip clutch. The closing or switch 69 completes the circuit to the solenoid This releases the brake 3. 3 so that the spooler shaft may start to revolve through the increased energization of the magnetic slip clutch.

The closing of switch t9 short circuits the zero speed switch 38. The de-energization of the capstan timer tie-energizes the relay winding by the opening of switch Thus switch patent, which tension in the wire W changes, the loop between the finishing capstan l5 and wheel 11 will change in size, causing oscillation of the arm l8, and hence angular movement of the movable coil of the voltage regulator. As the position of this coil changes the value of the current introduced into it from the field windings will change, in accordance with well known practice, with the result that the energization of winding 82 will vary, so that if the tension on the wire falls off the energization will increase and vice versa. Proper adjustment of this mechanism is accomplished by the proper positioning of the weights 2!, and the dash pot mechanism 22 operates to prevent the abrupt movement of the arm I8, and hence of the regulator. This mechanism will operate to maintain a substantially constant tension in the wire W as it is fed to the spool.

The machine is now running under normal operating conditions and will continue thus until the spool is loaded, at which time the main timer 58, or some other manual means, will operate to shut the machine down, in accordance with a sequence of operations now to be described. However, in passing it should be noted that if the wire W should break prior to this time the support for wheel IE will be gone, with the result that switch 80 will open, breaking the holding circuit for the main motor controller, so that it will stop. At the same time the windings for switches '60 and 88 will be de-energized so that switch 60 opens and switch 88 closes setting up a similar sequence of operations to bring the machine to a stop.

The opening of switch 60 will have the same general effect on the circuits as will the operation of the timer 58 at the end of a predetermined period or time, so that a description of what happens when the latter operates will be sufficient to make it clear as to the same operations which occur when switch 60 opens. We will assume, therefore, that the period of operation under the control of the timer 58 has come to an end, that is when spool 28 is full. Switch 81 opens, breaking the circuit to the relay 69 so that the switches controlled thereby move from the position previously described back to the position illustrated in Figure 6.. The opening of switch 89 takes the short circuit off the zero speed switch 88. The opening of switch 69 breaks the circuit to the brake magnet 40, so that the spring thereof applies the brake to the spooler shaft. The opening of switch 69 takes the shunt off the portion of resistance 84 in use, reducing the current to the slip clutch winding 82. The closing of switch 69 energizes the capstan timer 64. The energization of this timer completes the circuit to relay winding 55. This causes switch 66 to close, energizing the capstan solenoid 48 and disconnecting the clutch parts 42 and 43. Thus the finishing capstan I5 is disconnected from the main motor'drive. The main motor drive is now under the control of the zero speed switch 38 and the spooler is slowing down. At the proper point, preferably just about as the spooler shaft stops rotating, switch 38 opens, with the result that the holding circuit to the main controller is broken and the main motor is de-energized as well as the controls therefor. At the same time, switch 80 opens which de-energizes the main timer 58. Likewise, switch 88 closes, shunting the portion of resistance 86 in use, and reducing the current to the magnetic clutch to its stand-by value. The capstan timer, in accordance with its adjustment, operates in due course to de-energize the relay winding 55'. with the result that switch 66 opens de-energizing capstan solenoid 48, whereupon the clutch elements 42 and 43 are engaged. Thus the finishing capstan is connected again to shaft [4 by means of force exerted by spring 48. The machine is now at rest and reset for future starting.

In stopping, as in starting, the sequence of operations above described takes place in less time than it takes to describe them, although in this connection the sequence of operations is spread over a longer period of time in view of the fact that an appreciable period is required to bring the machine to a stop.

With reference to switch 11, it is to be noted that it is, as termed in the drawings, an operator switch for breaking the direct current circuit from the rectifier, and for energizing the brake as required by certain operating conditions. To do this the switch 11 is thrown to its other position, breaking the circuit to the field of the voltage regulator 23, and connecting wire 12 directly to wire 11, thus energizing the brake solenoid 40 in an obvious manner.

The important and basic consideration in connection with this invention is found in the fact that the machine is arranged so that during starting the finishing capstan I5 is power driven and the magnetic clutch is properly energized to take care of the starting load. Likewise, at the instant of starting the spooler brake is released. During stopping the characteristic of the system is that the finishing capstan I5 is disconnected from its driving shaft l4, so that the inertia of the loaded spool 29 supplies the energy necessary to draw the wire W through the finishing die 9, it being remembered that the main drive for the wire drawing machine continues at normal operating speed. Thus, the spool is supplied with all the wire that it demands during stopping without excess strain on the wire, thereby minimizing breakage. The spool shaft is braked during stopping, so as to shorten the stopping period, and during this time the effect of the magnetic slip clutch is decreased by inserting extra resistance in the circuit with it. Thus the machine may coast to a stop while maintaining the wire under tension, but not tension suflicient to break it. Finally, the main motor drive is deenergized as the spooler comes to a stop, and then the capstan timer resets the circuits so that the machine is ready for starting.

From the above description it will be apparent to those skilled in the art that the single embodiment of the invention herein disclosed illustrating the principles thereof, does not represent all of the variations of the invention which will readily occur to those skilled in the art in the light of the above disclosure. I do not, therefore, desire to be strictly limited to the disclosure as given for purposes of illustration, but rather to the scope of the claims granted me.

What is claimed is:

'1. In a strand spooling machine, the combination including a capstan shaft, power means for driving said shaft, a capstan wheel mounted on said shaft, means for connecting and disconnecting said shaft and power means, spooling mechanism including an independently driven shaft, means for controlling said connecting means to connect said power means to said capstan shaft during the accelerating period of the spooling shaft and for disconnecting said power means from said capstan shaft during the decelerating period of the spooling shaft, and a brake for said spooling shaft, said brake being actuated by said controlling means to aid in decelerating the spooling shaft and said capstan running free during deceleration.

2. In a machine as described, the combination including a capstan, a capstan shaft for rotatably supporting said capstan, motive means for driving said capstan shaft, means for connecting and disconnecting said motive means and. capstan shaft, a spooling shaft, separate power means for driving said spooling shaft, and control means actuated upon energizationof said motive means for operating said connecting means to maintain the capstan shaft connected to said motive means during the acceleratingperiod of the spooling shaft, and acting upon de-energization to disconnect said capstan shaft from said motive means during the decelerating period of the spooling shaft.

3. In a machine as described, the combination including a capstan, a capstan shaft for rotatably supporting said capstan, motive means for driving said capstan shaft, means for connecting and disconnecting said motive means and capstan shaft, a spooling shaft, separate power means for driving said spooling shaft, control means actuated upon energization for operating said connecting means to disconnect the motive means from said capstan shaft during the decelerating period of the spooling shaft, whereby the capstan is free and driven only by the wire during deceleration of the spooling shaft, and for connecting the motive means to said capstan shaft at the end of the decelerating period of the spooling shaft.

4. In a machine as described, the combination including a capstan, a capstan shaft for rotatably supporting said capstan, motive means for driving said capstan shaft, means for connecting disconnecting said motive means and capstan shaft, 8, spooling shaft, separate power means for driving said spooling shaft, control means actuated upon energization for op rating said connecting means to disconnect the motive means from said capstan shaft during the decelerating period of the spooiing shaft, whereby the capstan is free during decelerationoi" the spcoling shaft, and for connecting the motive means to said cap stan shaft at the end of the decelerating period of the spooling shaft, and means actuated when the spooling shaft comes to rest for operating the connecting means to again connect th motive means to said capstan shaft.

5. In a machine as described, the combination including a capstan, a capstan shaft for rotatably supporting said capstan, motive means for driving said capstan shaft, meam for connecting and disconncctin said motive means and capstan shaft, a spooling shaft, separate power means for driving said spooling shaft, control means for said connecting means, means actuated upon energization for operating the connecting means to disconnect the motive means from said capstan shaft during the decelerating period of the spooling shaft, and means operated by the spooling shaft for deenergizing the motive means or Just prior to the stopping of the spooling shaft.

5. In a machine as described, the combination including a capstan, a capstan shaft for rctatably supporting said capstan, motive s ing said capstan shaft, means for @391 sting and disconnecting said motive means and capstan shaft, a spooling shaft, power means for driving said spooling shaft, control means for said connecting means, means actuated upon deenergizadrivtion of the spooling shaft, power means for operating the connecting means to disconnect the motive means from said capstan shaft during the decelerating period of the spooling shaft, and means operated by the spooling shaft for deenergizing the motive means at or just prior to the stopping of the spooling shaft, said controlling means operating said connecting means to reconnect the motive means and capstan shaft in preparation for i e-starting.

7. In a strand spooling machine the combination including a, capstan, a capstan; shaft for rotatably supporting and for driving the capstan, motive means for driving the capstan shaft, means for connecting anddisconnecting the motive means and capstan shaft, a spooling shaft, power means for driving the spooling shaft, means for energizing the motive means, the power means and said controlling means, whereby the motive means and capstan shaft are connected during the accelerating period of the spooling shaft, and means operated when the spooling shaft begins to decelerate for operating the connecting means so that the motive means and capstan shaft are disconnected, and means operating upon breakage of the strand for deenergizing the capstan motive means and for operating the connecting means to disconnect it from the capstan shaft during the deceleration of the spooling shaft.

8. In a strand spooling machine, the combination including a capstan, a capstan shaft for rotatably supporting and fordriving the cap stan, motive means for driving the capstan shaft, means for connecting and disconnecting the motive means and capstan shaft, a spooling shaft, power means for driving the spooling shaft, means for energizing the motive meanathe power means and said the motive means and capstan shaft are connected during the accelerating period of the spooling shaft, and means operating upon breakage of the strand for deenergising the capstan motive means and for operating the connecting means to disconnect the motive means from the ca stan shaft during the deceleration of the spooling shaft.

9. In. a strand spooling machine, the combination including a capstan, a capstan shaft for rotatably supporting and for driving the capstan, motive means for driving the capstan shaft, means for connecting and disconnecting the mo= tive means and the capstan a spooling shaft, power means for driving the spooling shaft, means for energizing the motive means, the power m and said controlling means, whereby the mo .1 means and capstan shaft are connected during the acceler period of the spooiing shaft, means operating ipon breakage of the strand for deenergizing capstan m0- tive means and for operating the connecting means to disconnect it and the capstan shaft during the deceleration of the spooling shaft, a brake for said spooling shaft, and means for applying the brake to aid in deceleration of the spooling shaft.

20. In a wire drawing and spooling machine, the combination with a wire drawing machine finishing capstan shaft driven thereby, cans for connecting and disconnecting whine and the capstan shaft for conjoint or independent rotation, of a spooling shaft, separate power means for driving said spooling shaft, and means for controlling said separate power means and said energize said separate power means and to discontrolling means, whereby connecting means to deconnect the capstan shaft from said machine during the decelerating period of the spooling shaft.

11. In a wire drawing and spooling machine, the combination with a wire drawing machine having a finishing capstan shaft driven thereby, and means for connecting and disconnecting said machine and the capstan shaft for conjoint or independent rotation, of a spooling shaft, separate power means for driving said spooling shaft, means for controlling said connecting means, the capstan shaft being connected to said machine during the accelerating period of the wire drawing machine and spooling shaft, and means for operating the connecting means to disconnect the capstan shaft during the decelerating period of said spooling shaft so that the capstan is free of all forces except that it is driven by the wire.

12. In a strand spooling machine, a spooler shaft, a motor for driving said shaft, a magnetic slip clutch through which said motor drives said shaft, an energizing winding for said slip clutch, a capstan, a shaft for the capstan, a power source, a two-position clutch for connecting and disconnecting the capstan shaft and power source, means for operating said two-position clutch, and means actuated when said power source is operative for increasing the energization of the slip clutch winding during its accelerating period, and for decreasing the energization of the slip clutch winding at the end of the accelerating period.

13. In a strand spooling machine, a spooler shaft, a motor for driving said shaft, a magnetic slip clutch through which said motor drives said shaft, an energizing winding for said slip clutch, capstan shaft, power means for driving the capstan shaft, 2. two-position clutch for connecting and disconnecting the power means and capstan shaft, means for operating said two-position clutch, means actuated when said power means is energized for increasing the energization of the slip clutch winding, and means for decreasing the energization of said slip clutch winding and for energizing said two-position clutch operating means to disconnect the capstan shaft during the decelerating period of said spooling shaft.

14. In a strand spooling machine, a spooler shaft, a motor for driving said shaft, a magnetic slip clutch through which said motor drives said shaft, an energizing winding for said slip clutch, a capstan shaft, power means for driving the capstan shaft, a two-position clutch for connecting and disconnecting the power means and capstan shaft, means for operating said two-position clutch, means actuated when said power means is energized for increasing the energization of the slip clutch winding, a brake for said spooling shaft, and means for decreasing the energization of said slip clutch winding and for energizing said two-position clutch operating means to disconnect the capstan shaft and for applying the brake during the decelerating period of said spooling shaft.

15. In a strand spooling machine, a spooler shaft, a motor for driving said shaft, a magnetic slip clutch through which said motor drives said shaft, an energizing winding for said slip clutch, a capstan shaft, power means for driving the capstan shaft, a two-position clutch for connecting and disconnecting the capstan and its shaft, means for operating said two-position clutch, means actuated when said power means is energized for increasing the energization of the slip clutch winding, means controlled by the strand for controlling the slip clutch winding for varying its energization to maintain a substantially uniform tension in the strand between the capstan and the spooling shaft, and means for actuating the clutch operating means to disconnect the capstan shaft during deceleration of the spooler shaft.

16. In a wire drawing and spooling machine, the combination with a wire drawing machine having a finishing capstan shaft driven therefrom, and means for connecting and disconnecting the capstan shaft for conJoint or independent rotation, of a spooling shaft, 9. separate power means for driving said spooling shaft, and means for controlling said connecting means to disconnect the capstan shaft during the decelerating period of the spooling shaft, said connecting means automatically reconnecting the capstan shaft at the end of the decelerating period so that it is ready for the next start.

1'1. In a strand spooling machine, the combtnation including a capstan shaft, 8. capstan wheel mounted on said shaft,-a first power means, means for connecting and disconnecting said power means and said shaft, spooling mechanism including a spool shaft, a second power means for driving said spool shaft, means for operatively connecting and disconnecting said second power means to and from said spool shaft, and means for controlling both of said connecting means to disconnect said first power means from said capstan shaft and said second power means from said spool shaft during the decelerating period of the spool shaft, and for connecting said first power means to said capstan shaft at the end of the decelerating period of said spool shaft.

18. In a strand spooling machine, the combination including a capstan shaft, a first power means, a capstan wheel mounted on said shaft, means for connecting and disconnecting said 'shaft and power means, spooling mechanism-including a spool shaft, a second power means for driving said spool shaft, means for operatively connecting and disconnecting said second power means to and from said spool shaft, and means for controlling both of said connecting means to connect said first power means to said capstan shaft during the accelerating period of the spool shaft, and said second power means to said spool shaft, and for disconnecting said first power means from said capstan shaft during the decelerating period of the spool shaft.

19. In a strand spooling machine, the combination including acapstan shaft, a first power means, a capstan wheel mountedon said shaft, means for connecting and disconnecting said first power means and said capstan shaft, spooling mechanism including a spool shaft, a second power means for driving said spool shaft, meansfor operatively connecting and disconnecting said second power means to and from said spool shaft, means for controlling said connecting means to connect said first power means to said capstan shaft during the accelerating period of the spool shaft, and for disconnecting said first power means fromsaid capstan shaft during the decelerating period of the spool shaft, and a brake for said spool shaft, said brake being applied to aid in decelerating the spool shaft.

20. A combination of the type described comprising a power driven wire drawing machine having a capstan and driving shaft therefor, means including a clutch for driving said shaft from said drawing machine, a spooling machine 21. In the comb ation of claim 20. a magnetic including a spool shatt, a motor for said spool clutch for-the spool shaft, and means operated shaft, a clutch for connecting said motor to said by the wirefor controlling the energization o1 spool shaft, a brake for said spool shaft, and con-- said clutch whereby a substantially uniform tentrol and operating means for tie-energizing said 5 sion is maintained in the wire between the draw-' motor, disconnecting the clutch thereof to free ing machine and the spool shat said capstan shaft, disconnecting the clutch ror said spool shaft and applying said brake where- CARROLL E. ORR. by said capstan sha'tt runs free during the decelerating period of said spool shaft. 10

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