US2155211A

US2155211A - Spooling or reeling mechanism

Info

Publication number: US2155211A
Application number: US61131A
Authority: US
Inventors: Zarafu Herman
Original assignee: ELEVATOR SUPPLIES CO Inc
Current assignee: ELEVATOR SUPPLIES CO Inc; ELEVATOR SUPPLIES COMPANY Inc
Priority date: 1936-01-28
Filing date: 1936-01-28
Publication date: 1939-04-18
Anticipated expiration: 1956-04-18
Also published as: GB482478A

Description

A ril 18, 1939. H. ZARAFU SPOOLING OR REELING MECHANISM Filed Jan. 28, 1936 4 Sheets-Sheet 1 H. ZARAFU April 18, 1939.

SPOOLING OR REELING MECHANISM Filed Jan. 28, 1936 4 Sheets-Sheet 2 INVENTOR April 18, 1939. H. ZARAFU 2,155,211

' SPOOLING OR REELING MECHANISM Filed Jan. 28, 1956 4 Sheets-Sheet. 5

April 18, 1939. H ZARAFU 2,155,211

SPOOLING OR REELING MECHANISM Filed Jan. 28, 1936 4 SheetsSheet 4 HTTOR/VH Patented Apr. 18, 1939 UNITED STATES PATENT OFFICE SPOOLING R REELING MECHANISM Application January 28, 1936, Serial No. 61,131

13 Claims.

This invention relates to spooling or reeling mechanism of wire drawing apparatus or the like and provides improvements therein.

The general construction and operating characteristics of wire drawing and spooling machines may be summarized as follows: The machine comprises a plurality of dies of progressively smaller size and a capstan after each die, the capstans being so driven as to have progressively higher peripheral speeds occasioned by the elongation of the wire in passing through each die. For the purpose of avoiding breakage of the Wire, the machines are so designed that the peripheral speed of each capstan-drum is somewhat less than the peripheral speed of the preceding capstan-drum plus the elongation of the wire in passing through the preceding die, so that there is a continual slip of the wire on the capstandrums through the machine. That is, while the wire is pulled forward all the time, its speed is less than the peripheral speed of the capstandrums by the amount of slip which occurs. The amount of slip is governed by the difference between the actual, or designed, peripheral speed of each capstambarrel, and the required peripheral-speed to correspond to the speed of the wire on leaving the preceding capstan-barrel plus the elongation in passing through the preceding die, and also by the pull on the wire after it leaves the last capstan-barrel.

The capstans are driven at a constant speed, and the requisite of proper operation is that the wire should be pulled from the final capstan by the spooling mechanism at a speed approximately but not fully equalling the peripheral speed of the final capstan, to thereby admit of the slip within the wire drawing machine hereinbefore referred to. It is desirable, and even necessary in high speed machines, to prevent burning of the wire, to limit the maximum of the slip, and therefore to maintain at all times a peripheral speed of the wire on the spool (notwithstanding the increase in diameter of the coil as successive layers are wound on the spool) which always approximates the peripheral speed of the final capstan, so that the amount of variation of the winding or spooling speed from the peripheral speed of the final capstan shall never be too large. For the purpose just referred to, the device most generally used has been a fabric or leather belt running around a pair of pulleys, one flight of which makes contact with the coil of wire on the spool, and rotates the spool through such contact. Such a belt-device has a number of objections, some of which are,

variability of driving force imparted by the belt to the spool, disintegration of the belt upon the coil, the rapidity of the wear and disintegration of the belt, and the susceptibility of the belt to the collection of dirt.

It has also been proposed to employ an arm having a roller thereon which runs against the bobbin or coil of wire on the reel or spool, which is displaced as the layers of wire build on the reel or spool and by such displacement operate a speed-changing device to progressively diminish the speed of rotation of the reel or spool spindle. With high speed wire drawing machines (6000 to 10,000 feet per minute for example) the velocity factor makes the action of masses which in slower running machines are inconsequential, severe and detrimental. The wire is damaged and a throbbing-effect is produced in the speedchanging device and in the spindle driving mechanism.

Moreover, to prevent burning of the wire, there is less latitude in the degree of slip in high speed machines than in the older and slower machines.

The present invention provides a novel and improved spooling or reeling mechanism and one which is especially adapted for use as a part of or conjointly with a wire drawing machine. It provides a mechanism of the character referred to in which a diminishment of speed of rotation of the spool or reel is closely responsive to increase of diameter of the wire-coil during spooling and relatively steady; which is suited to and adequate for satisfactory operation at high wire drawing speeds; which operates satisfactorily with unsymmetrical spools or coils; which does not detrimentally affect the wire winding on the spool or reel; which admits of ready removal and replacement of spools; and which is durable, of relative simplicity, and reliable in operation.

Furthermore, the present invention provides an apparatus no part of which makes contact with the wire winding on the spool or reel more than momentarily, which is not responsive to irregularities in the cylindrical contour of the bobbin or coil of wire, which only contacts with the high spots on the bobbin or coil from which it results that the impact between the wire in the coil (high spots thereof) and the part of the speed-changing means which contacts with wire, is light, and fluctuations or throbbing of the spindle driving mechanism avoided.

The present invention further provides an apparatus wherein the work of shifting the changespeed device and also of the part which makes contact with the wire winding on the spool or reel, is done otherwise than by force derived from the rotating reel or spool and the wire winding thereon. By the present invention an independ ent motor or actuating means is provided for shifting the variable speed device and the part which contacts with the bobbin or coil on the spool or reel, and the said part which contacts with the bobbin or coil only performs the work of initiating the action of said independent motor or actuating means, and consequently can be made extremely light. By the present invention, the action of the spindle-driving mechanism which includes the change-speed device is made positive and regular, and the range of speed-change widened.

Several embodiments of the invention are illustrated in the accompanying drawings, where- Fig. l is a view in side elevation of a wire drawing machine comprising a reeling or spooling mechanism;

Fig. 2 is a view in side elevation, on an enlarged scale, of the spooling or reeling mechanism shown in Fig. 1.

Fig. 3 is a vertical sectional view on the line 3-3, Fig. 2.

Figs. 4 and 5 are detailed views of parts of the spooling mechanisms shown in Figs. 1, 2 and 3, in side and front elevation respectively, illustrating the part for measuring the radius of the coil winding on the spool;

Figs. 6 and 7 are respectively detailed views in side and front elevation, of parts of the spooling mechanism and illustrating a second embodiment of the means for measuring the radius of the coil on the spool and independent actuating or motor means for doing the work of changing the speed of the spindle on which the spool is mounted is driven, and of shifting the parts in contact with the coil on the reel or spool.

Fig. 8 is a diagram of an electrical arrangement such as may be used in the embodiment illustrated in Figs. 6 and 7. This electrical arrangement may also be used in the embodiment illustrated in Figs. 10 and 11.

Fig. 9 is a detailed view illustrating the modification of the pawl 64 shown in Figs. 1 to 5 inclusive.

Fig. 10 is a view in side elevation of a third embodiment of the spooling or reeling mechanism providing independent motor means for actuating the speed-changing device, etc.; and

Fig. 11 is a section of the mechanism shown in Fig. 10 on the line Referring to said drawings, numeral ||l designates the wire drawing part of the machine, and I2 the spooling or reeling mechanism. The wire drawing part of the machine comprises a series of wire drawing dies l3, and capstans l4, l5, and has the operating characteristics hereinbefore described.

The spooling or reeling mechanism l2 comprises a spindle or other suitable means |8 for supporting and rotating a reel or spool S, the spindle being driven to rotate the spool. When the spooling mechanism forms a part of a wire drawing machine, the spindle is preferably driven from a part of the wire drawing mechanism, as by the shaft 29 which drives the final capstan 5. If the spool spindle |8 were rotated at constant speed, its speed of rotation would have to be such that the peripheral speed of the coil of wire at its greatest diameter during winding on the spool S would not exceed the peripheral speed of the final capstan I5. With such an arrangement there would be a large amount of slip in the wire drawing mechanism during the initial stages of the spooling of the wire, which is undesirable, and which, in high speed wire drawing machines, would be excessive, causing damage to the wire, such as friction burning, etc. It is therefore desirable to drive the spool spindle IS in such manner that the peripheral speed of the coil of wire on the spool S, as the layers of wire build thereon during winding, shall closely approximate the peripheral speed of the final capstan l5. throughout the drawing and spooling operation. Such operation is particularly important in wire drawing machines in which the wire is drawn at high speeds.

To such end, a means 25 is provided for changing the speed of or in the mechanism for driving the spool spindle l8 in accordance with the change in radius of the coil of wire on the spool by reason of the change in the layers of wire in the coil. In reference to a wire drawing mechanism the aforesaid means would act to progressively diminish the speed of rotation of the spindle l8 as the radius of the coil of wire builds with successive layers winding on the spool. The means for changing the speed of the driving mechanism in accordance with the change in radius of the coil comprises any suitable means by which the speed of rotation of the shaft 8 may be changed, (one form of which is a variable transmission in the driving means, shown herein on the drawing at 30) and a means for acting on or controlling said speed changing means in accordance with the change in radius of a coil of wire on the spool or reel S by reason of a change in the layers of wire on the coil. The latter means may have various forms of embodiment, three of such forms being illustrated at 3|, SM, and 3|b in the drawings.

The means for driving the spool spindle H3 in the form here illustrated comprises a drive shaft (here shown as the capstan shaft 20 driven'in suitable manner as by means of a sprocket wheel 35, Fig. 3, or a pulley 35a, Fig. 11), and a variable transmission which may be of the type herein illustrated. As shown, the variable transmission comprises a fixed diameter pulley 33, a pulley 37 of variable diameter, and a belt 39 passing around the

pulleys

33 and 31. The pulley 31 comprises two discs 4|, 42 having oppositely inclined faces forming a V-shaped surface with which the belt 39 makes contact. One of the discs, as the disc 4|, is fixed upon a shaft (which may be, as here shown, the spindle shaft 8), and the other of which, as the disc 42, is adjustable longitudinally of the shaft to vary the width of the V between the faces of the two discs 4|, 42. The disc 42 is rotatably connected to a sleeve 44 surrounding the shaft |8, which sleeve 44 has a thread thereon which engages a threaded part 45 on a fixed part of the machine, the arrangement being such that when the sleeve 44 is rotated the thread engagement between the sleeve 44 and the part 45 produces a movement of the sleeve 44 longitudinally of the shaft l8, and a similar movement of the disc 42 of pulley 31. An arm and a roller 48 serves to maintain the belt 39 under tension throughout adjustment of the variable diameter pulley 31.

The means for acting on the speed changing means may, as heretofore stated, have a variety of forms. One form is shown at 3|, Figs. 1, 2, 3, 4 and 5. It comprises a means 50 for measuring the change in radius of the coil of wire on the spool by reason of the change in the layers of wire in the coil, and means for transmitting or translating such measurements to the speed changing means. In said embodiment the radius measurer 56 is in the form of an arm pivoted or mounted on a shaft or axis 52, and the arm is arranged to swing toward and from the axis of the spool of spindle I6, and to contact with the coil of wire as it winds on the said spool S. In said embodiment the displacement of the arm or part 56 is arranged to act directly upon the variable transmission 36 or other speed changing means. As shown the arm 56 is fixed on the shaft 52 and the shaft 52 has a toothed sector 54 which engages a toothed gear 55 on the sleeve 44, which sleeve 44, as heretofore described, moves longitudinally of the shaft I8 and thereby adjusts the disc 42 of the variable diameter pulley 31. The displacement of the part 56 however can be transmitted to the variable speed pulley 3'! by various other mechanical arrangements.

Means are provided for stopping the return movement of the radius measuring part 56 toward the axis of the spindle I8, which means, in the embodiment shown in Figs. 1 and 5, has the form of an arm 66 mounted on a sleeve 62 with the arm 56 in such manner that the arms 56 and 66 move together. The arm 66 has thereon a pawl 64 engaging a rack segment 66 having teeth pointing in a direction to prevent movement of the arms 56 and 66 toward the axis of the spool spindle I8. In order to minimize the return movement of the arm 56, the pawl 64 may be made in several parts 64 66 64 of different length, as illustrated in Fig. 9. By such a construction the return movement of the arm 56 may be limited to a fraction of the length of a tooth on the rack segment 66.

Such aconstruction has the advantage of avoiding fluctuations in the drive of the spool due to unsymmetry of the coil on the spool, and also of avoiding heavy impacts between the arm 56 and the wire winding on the spool. This unsymmetry may rise from several causes. For example, the spool may be unsymmetrical, and usually is to some extent. Such a condition of unsymmetry is indicated by the dotted line a: in Figs. 4, 6 and 8.

Instead of the work of shifting the variable transmission 36 or other speed changing means being done directly by the radius measuring part 56, it may be done by an independent actuating or motor-device of any suitable kind the radiusmeasuring part 56 acting to initiate the action of the motor device. Furthermore the work of displacing the part 56 may also be done by the said independent actuating or motor-device.

An embodiment in which the work of shifting the variable transmission 36 or other speed changing means and of displacing the measuring part 56 is done by an independent motor, is illustrated in Figs. 6, 7 and 8, and another such embodiment in Figs. 10 and 11. Referring to Figs. 6, 7 and 8, 66 designates a motor-device in the form of a solenoid and armature. Movements of the armature may be transmitted to the sleeve 44 of the variable transmission 36 by a pawl I62 (Fig. 6) engaging a ratchet wheel I 66 fixed on the shaft 52 having thereon the gear segment 54 shown in Fig. 3. The pawl I62 is mounted on a shaft I62 having an arm 61 connected to the armature of the motor-device I66, and having a screw-thread engagement with its support, as indicated at 68. When the armature is pulled toward the solenoid, the shaft I 62 is turned and advances the pawl I62 to turn the ratchet wheel I66 stepwise, a holding pawl 16 acting to hold the ratchet wheel against back-movement when the pawl I62 is retracted. The solenoid I66 may be electrically energized consequent upon contact of the measuring part 56 or a finger I5 thereon with the coil of wire on spool S. As shown the finger I5 is pivotally mounted on the arm and carries thereon one terminal of a make and break device I8. The finger I5 may be made extremely light. Contact of finger I5 with the coil of wire on spool S breaks a circuit at I8 momentarily and brings about a flow of current to solenoid I66, in the following manner. A wiring diagram of a suitable circuit arrangement is shown in Fig. 8.

A circuit from the 1ow-tension side of a transformer 86 through a relay 82, is broken when the make and break device I6 is opened. Thereupon relay 82 closes a circuit through contacts 84 and through a relay 86, which latter is energized to close

contacts

88, 89. The closing of contacts 89 establishes a holding circuit through the relay 86, and the closing of contacts 88 establishes a circuit through the solenoid of motor I66, and causes its armature to turn the shaft I62 through arm 61 and thrust pawl I62 forward to turn the ratchet-wheel I66 through an angular distance of one tooth, thereby moving the arm 56 away from the axis of spool-spindle I8, and acting on the speed changing means through shaft 52.. The movement of arm 56 alsoallows finger I5 to retract to close contacts I8, reenergize relay 82 and cause it to break the circuit at contacts 84. The action of the armature of motor I66 on arm 61 also operates to break the circuit through the solenoid of motor I66 at a make and break device 96, and thereby reset the armature, shaft I52 and pawl I62 for another operation.

In the embodiment illustrated in Figs. 10 and 11 the work of retracting of the measuring arm 56 and of shifting the speed changing means is done by a motor-device. A motor-device I 66 similar to that described with reference to Figs. 6, 7 and 8 may be used and the circuit in which it is included may be the same as that illustrated in Fig. 8. The motor-device I66 acts directly on the speed-changing means, instead of through the shaft 52 of the radius measuring part 56, as in Figs. 6, '7, and 8. The ratchet-wheel I66 is fixed on a shaft I66 on which is fixed a worm I62 which meshes with the teeth 55 on the sleeve 44, which latter, as hereinbefore described, shifts the disk 42 of the variable diameter pulley 31. The radius measuring arm 56 is fixed on a shaft I66 and its displacement is effected by a cam I68 on the sleeve 44, which cam acts on the radius measuring arm 56, as by means of an arm H6 on the same shaft I66 as the arm 56. The cam I68 would also perform the function of the pawl 64 and rack-segment 66 and these could be omitted.

The means by which the return movement of the radius measuring part 56 is stopped or prevented has advantages in the spooling or reeling of wire. The contacts of the radius measuring part with the wire are successive and momentary. A momentary contact of the displaceable radius measuring device 56 with the high spot of each successive layer of wire as it builds in the coil on the spool S is sufficient to displace it, and the means for stopping back movement of said displaceable part, or of operating it and holding it in its operated position, (several embodiments of which are shown herein) holds the said displaceable part 56 out of contact with the wire between successive momentary contacts. By

such method of operation the wire during winding is not liable to scratching by the continuous contact of the displaceable part therewith, or to marking resulting from impacts on rebound, and the quality of the wire wound on the spool or reel is improved. The degree of movement of the parts is diminished and the fluctuations of the mechanism driving the spindle which carries the spool or reel are diminished, and a more positive and regular action obtained.

As heretofore stated the means for changing the speed of the spool spindle I8 generically may have any suitable form or embodiment. The form shown here, comprising one pulley of uniform diameter and another pulley of variable diameter is a type in which the change of speed is proportional to the change of radius of the coil on the spool S for successive layers of wire, and hence the change in speed of the spindle shaft I8 is proportional to the displacement of the displaceable part 56.

The radius measuring arm 56 in the form of embodiment shown in Figs. 1-5 inclusive is preferably provided with a roller I 56 at the place where contact is made with the coil on the spool, to reduce friction, and the roller and arm 50 are preferably made of light material to reduce the inertia.

Operation Referring to Figs. 1 to 5 inclusive and 9, the drawn wire passes off the final capstan I5, to the spool S on the spindle I8 of the spooling mechanism I2. Between the final capstan I5 and the spool there is preferably provided a device 2I6 which controls the tension under which the wire winds onto the spool S. The tension device 2 I can have any form, being here shown as an arm carrying a roller which is pressed against a loop in the wire by a spring. In proximity to the spool there is also provided a traversing device I I5, which may have the construction of any I of the devices of this character ordinarily used in spooling apparatus.

The spool spindle S is rotated from the shaft 26 (which is driven from the wire drawing mechanism through the sprocket wheel 35), through a variable transmission 30 comprising the pulley 33, belt 39, variable diameter pulley 31 and the shaft of the spindle I8. The discs M, 42 of the pulley 31, at the beginning of the Winding operation, are wide apart to provide a bearing surface of a relatively small diameter for the belt 39. At this time the speed relation is such that the spindle I8 is turned at a speed Which provides a peripheral speed at the barrel of the spool S which is slightly less than the peripheral speed of the final capstan I5. The spool S having been previously placed on the spindle I8, the radius measuring arm 56 is placed in contact with the barrel of the spool S. The mechanism is then started, and the wire proceeds to wind in layers on the spool S, and build thereon a coil of wire of increasing diameter, and radius.

As the radius of the coil increases by reason r of the building of successive layers, the measuring arm is moved (Figs, 1-5) or displaced step by step from or in relation to the axis of the spindle IS. The movement of the measuring arm 50 is imparted to a segmental rack 54 through the shaft 52. The segmental rack 54 engages the pinion on the sleeve 44 and rotates the sleeve. The rotation of the sleeve, by reason of the thread engagement of the sleeve with the part 45, produces a movement of the sleeve 44 longitudinally of the shaft I8, and thereby moves the disc 42 of the variable diameter pulley 31 toward the disc 4I,,thus increasing the effective diameter of the pulley, 31 and decreasing the speed of rotation of the spindle shaft I8, and thereby decreasing the speed of rotation of the spool S to an extent that the peripheral speed of the surface layer of the wire on the spool is maintained substantially constant. The peripheral speed of the coil on the spool S, as the layers build thereon is held substantially constant by the action of the radius measuring arm 56 and the actuating parts connected thereto, as just described, the peripheral speed of the coil throughout the building of the layers of wire thereon, remaining always slightly less than the peripheral speed of the final capstan I5. Such a relation of peripheral speeds is important in the winding of fine sizes of wire. In winding wire of the size which has considerable tensile strength, the coil on the spool S can be run at a peripheral speed equal to that of the final capstan I5, particularly if the tensile strength of the wire is sufficient to retard the driving force, or to produce a slip in the driving connections. Fine wire would break under similar conditions. When a spool S is filled, the radius measuring arm may be swung to one side, the spool S removed from the spindle and replaced by an empty spool.

Spools are not usually exactly cylindrical. The

face of the barrel may not be perfectly cylindri- V cal, or the bore of the spool may not be exactly coaxial with the face of the barrel. When the spool S is rotated, therefore, it has a greater or less wobble. To prevent the eccentricities of the spool S, and therefore of the coil building on the spool, from vibrating the radius measuring arm 56, and thereby pulsating or fluctuating the rotation of the spool spindle I8, back movement of the radius measuring arm 56 is prevented after each succeeding contact of the radius measuring arm 5!] with the high point of an eccentric coil. The high pont of an eccentric coil is designated by the letter a: Fig. 4. As the radius measuring arm 56 is displaced by contact with the eccentric portions of the coil, the pawl 64 on the arm 66 which projects from the sleeve 62 drops behind a tooth on the segmental rack 66. By making the pawl 64 in several parts 64*, 64*, 64 of different length, as shown in Fig. 4, the back movement of the arm 66 and therefore of the radius measurng arm 56 can be limited to a fraction of the length of a tooth.

Referring to Figs. 6, 7 and 8, wherein the work of displaying the radius measuring arm 50 and of shifting the change-speed device 36 is done by a motor device I66, when a layer of wire builds on the coil, the finger I5 is moved to an extent to open an electric circuit, (the diagram of which is shown in Fig. 8, and the operation of which has already been described), at I8. Thereupon the solenoid of the motor device I66 is energized and causes the armature to pull on the arm 6! to rotate the shaft I62 and the rotation of the shaft 52 through the action of the threads 68, thrusts the shaft toward the ratchet wheel I66 and causes the pawl I62 to turn the ratchet wheel and thereby move or displace the radius measuring arm 56 from the coil on the spool. Back movement of the ratchet wheel I66 and of the arm 50 is prevented by the stop pawl I0. As the arm 61 on the shaft I62 is pulled down by the armature, it strikes a make and break device 96 and opens an electric circuit which restores the parts of the motor device I60 to their initial position, and at which position they are in readiness to impart another stepwise movement to the ratchet wheel I66 and arm 50 when the finger 15 again opens the make and break device 18. The movement of the ratchet wheel I66 also rotates the shaft 52, which shaft 52 acts on the variable transmission 30 in the manner hereinbefore described.

Referring to Figs. '10 and 11 the work of Shiit ing the radius measuring arm 50 and the variable transmission 39 is done by a motor device 160 similar to that described in reference to Figures 6, '7 and 8. A finger 15 on the radius measuring arm 50 opens an electric circuit and ener gizes the solenoid of the motor device I60 when a layer of wire builds on the spool S, or an eccentric portion of the coil, through contact when the said finger 15, moves it to an extent to open the circuit at 18. The motor device "iii, in the manner already described, moves the ratchet wheel I56 stepwise, and the stepwise movement of the ratchet wheel I66 is imparted to the variable transmission 30 through the shaft I00, worm I02 and the teeth 55 on the sleeve 44, rotating the said sleeve. The rotation of the sleeve 44 is converted by the threads 45 to movement longitudinally of the spindle shaft I8, and thereby moves the disc 42 of the variable diameter pulley 3'! toward the disc 4|, thereby increasing the effective diameter of the pulley 31, and decreasing the speed of rotation of the spindle shaft 18. The radius measuring arm is retracted through and held by the action of the cam I08 against an arm l l on a shaft I 06 on which the radius measuring arm 50 is mounted.

The invention may receive other embodiments than those herein specifically illustrated and described.

What is claimed is:

1. A spooling or reeling mechanism for wire drawing machines or the like, comprising a spool or reel spindle, means for driving said spindle to rotate the spool or reel, and means for progressively diminishing the speed of rotation of said spindle as the radius of the coil of wire on the spool or reel increases with successive layers, said latter means comprising a part displaceable with relation to the axis of said spindle, a make and break device on said displaceable part having a finger arranged to contact with the coil of wire on the spool or reel, and means controlled by said make and break device for displacing said displaceable part, by a small amount, from the axis of said spindle, following successive contacts of said finger with the coil on said spool, and at the same time control the action of said speed diminishing means.

2. A spooling .or reeling mechanism for wire drawing machines or the like, comprising a spool or reel spindle, means for driving said spindle to rotate a spool or reel thereon, means for changing the speed of said driving means, and means arranged to contact with the wire coiling on the spool for acting on said speed changing means in accordance with the change in radius of a coil of wire on the spool or reel by reason of the change in the layers of wire thereon, said speed changing means being of a type in which the changes of speed are proportional to the change of radius of said coil for successive layers of wire, said speed changing means comprising a belt and a pair of pulleys, one of the pair of pulleys being of variable diameter and being acted on to efiect a change of its diameter directly proportional to a lineal increase in radius of said coil and thereby change the Speed of the driving means.

3. A spooling or reeling mechanism for wire drawing machines or the like, comprising a spool or reel spindle, means for driving said spindle to rotate a spool or reel thereon, means for changing the speed of said driving means, and means for controlling the action of said speed changing mean so as to diminish the speed of rotation of the spindle as the radius of a coil of wire on the spool or reel increases with successive layers, comprising a part displaceable with relation to the axis of said spindle and arranged to contact with the coil of wire on the spool or reel and through such contact control the action of said speed changing means, and means for retracting and holdin sa splaceable pa t c ea o he wire between successive momentary contacts of said displaceable part with the wire of successive layer 4. A spooling or reeling mechanism for wire drawin m c es o the like, o sin a $900 or reel spindle, means for driving said spindle to rotate the spool or reel, and means for progressively diminishing the speed of rotation of said spindle as the radius of the coil of wire on the spool or reel increases with successive layers, said latter means comprising a part successively displaced from the axis of said spindle by small increments through contacts with the high portion of successive layers of wire as they are wound on the coil and means for stopping return movement of said displaceable part following successive increments of displacement in such manner that said displaceable part is intermittently and momentarily in contact with the wire of the coil and held so it cannot follow irregularities of the coil with respect to the axis around which it turn and m ns o perati g w th sa di placeable part constructed and arranged to diminish the speed of rotation of said spindle coincident with said displacements.

5. A spooling or reeling mechanism for wire drawing machines or the like, comprising a spool or reel spindle, means for driving said spindle to rotate the spool or reel, and means for progressively diminishing the speed of rotation of said spindle as the radius of the coil of wire on the spool or reel increases with successive layers, said latter means comprising a part successively disp aced from the ax of Said s nd e b smal increments through contacts with the hi h portion of successive layers of wire as they are wound on t l, a pawl and rat h t fo st pp ng r turn movement of said displaceable part follow.- ing successive increments of displacement insuch manner that said displaceable part cannot move toward the axis of the coil to follow irregularities of the coil with respect to the axis around which it turns, and means cooperating said displaceable part constructed and arranged to diminish the speed of rotation of said spindle coincident with said displacements.

6.-A spooling or reeling mechanism for wire drawing machines or the -like, comprisinga spool r reclspi d e, m ans o dr vin said sp n le to rotate the spool or reel, jandmeans for progressively diminishing the speed of rotation of said spindle as the radius of the coil of wire on the spool or reel increases with successive layers, said latter means comprising a pivoted arm having a part thereon in proximity to the coil on the spool and which is successively contacted by the coil as the high portion of successive layers wind thereon and by such contacts moved out of contact with the coil and from the axis of the spindle by small increments, and means for stopping return movement of said arm following successive increments of displacement in such manner that said arm is intermittently and momentarily in contact with the wire and held so itcannot follow irregularities of the coil with respect to the axis around which it turns, and means cooperating with said displaceable part constructed and arranged to diminish the speed of rotation of said spindle coincident with said displacements.

7. A spooling or reeling mechanism for wire drawing machines or the like, comprising a spool or reel spindle, means for driving said spindle to rotate the spool or reel, and means for progressively diminishing the speed of rotation of said spindle as the radius of the coil of wire on the spool or reel increases with successive layers, said latter means comprising a part displaceable with relation to the axis of said spindle, a contactor thereon in proximity to the coil of wire on the spool or reel arranged to contact intermittently therewith as the radius increases with successive layers of wire, and means acting to move said displaceable part, by small amounts, from the axis of said spindle, following successive intermittent contacts of said contactor with the coil onv the spool, and means cooperating with said displaceable part constructed and arranged to diminish the speed of rotation of said spindle coincident with said displacements.

8. A spooling or reeling mechanism for wire drawing machines or the like, comprising a spool or reel spindle, means for driving said spindle to rotate the spool or reel, and means for progressively diminishing the speed of rotation of said spindle as the radius of the coil of wire on the spool or reel increases with successive layers, said latter means comprising a part displaceable with relation to the axis of said spindle, a contactor thereon in proximity to the coil of wire on the spool or reel arranged to contact intermittently therewith as the radius increases with successive layers of wire, and means acting to move said displaceable part, by small amounts, from the axis of said spindle, and to stop return movement thereof, following successive contacts of said intermittent contactor with the coil on the spool, and means cooperating with said displaceable part constructed and arranged to diminish the speed of rotation of said spindle coincident with said displacements.

9. A spooling or reeling mechanism for wire drawing machines or the like,gcomprising a spool or reel spindle, means for driving said spindle to rotate the spool o-r reel, and means for progressively diminishing the speed of rotation of said spindle as the radius of the coil of wire on the spool or reel increases with successive layers, said latter means comprising a part displaceable with relation to the axis of said spindle, electrical means for operating said speed diminishing means and a contactor associated with said displaceable part arranged to contactintermittently with the high spot on successive layers of wire as they build the coil of wire on the spool, and to control the operation of said electrical means.

10. A spooling or reeling mechanism for wire drawing machines or the like, comprising a spool or reel spindle, means for driving said spindle to rotate the spool or reel, and means for progressively diminishing the speed of rotation of said spindle as the radius of the coil of wire on the spool or reel increases with successive layers, said latter means comprising a speed-changing device, a displaceable contactor adjacent said spindle arranged to contact with a coil building on said spindle, motor-means for doing the work of shifting said speed-changing device, and means under the control of said displaceable contactor for controlling the action of said motor-means.

11. A spooling or reeling mechanism for wire drawing machines or the like, comprising a spool or reel spindle, means for driving said spindle to rotate the spool or reel, and means for progressively diminishing the speed of rotation of said spindle as the radius of the coil of wire on the spool or reel increases with successive layers, said latter means comprising a speed-changing device, a displaceable contactor adjacent said spindle, motor-means for doing the work of moving said speed-changing device and said displaceable contactor, and means under the control of said displaceable contactor for controlling the action of said motor-means, said contactor operating to effect a momentary action of said motor-means when a contact is made with any part of the coil :1

of wire building on the spool or reel, and the consequent action of said motor-means acting to displace said contactor to break contact with the coil and produce an increment of change in said speed-changing means.

12. Apparatus according to claim 11, further comprising a cam arranged to be turned by said motor-means and to act to displace said displaceable contactor, and having a contour which determines the degree of displacement of said contactor.

13. A spooling or reeling mechanism for wire drawing machines or the like, comprising a spool or reel spindle, means for driving said spindle to rotate the spool or reel, and means for progressively diminishing the speed of rotation of said spindle as the radius of the coil of wire on the spool or reel increases with successive layers, said latter means comprising a speed-changing device,

a displaceable part adjacent said spindle, an electric motor and an electric circuit therefor, said electric motor being arranged to do the work of moving said speed changing device and said displaceable part, and a contactor on said displaceable part and electrical means controlled by said contactor for opening and closing the circuit to said electric motor, said contactor operating to effect a momentary admission of current to said electric motor when a contact is made with any part of the coil of wire building on the spool or reel, and the consequent energization of said motor acting to displace said displaceable part and the contactor thereon to break contact with the coil and produce an increment of change in said speed changing means.

HERMAN ZARAFU.