US1676605A - Peeding mechanism - Google Patents

Description

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3 Sheets-Sheet 'l C. D. HART FEEDING MECHANI SM Filed July 5l, 1923 July 10, E928.

Q my f wm u uw wm nu July 10, 1928. 39769605 c'. D. HART FEEDING MECHANISM Filed July 51, 1923 s sheets-shet 2- July l10,1928. Lemans c. p. HART IYZ FEEDING MECHANISM Filed July 31, 1923 3 Sheets-Shee'cI 5 Patented July 1o, i928.

UNITED STATES vlil-*lTElJT OFFICE.

CARL DEIVIPSTER HART, OF LA GRANGE, ILLINOIS,ASSIGNOR TO WESTERN ELECTRIC COMPANY, INCORPORATED, OF NEW YORK, N. Y.,

A CORPORATION or NEW YORK.

FEEDING MECHANISM.

Application filed July 31,71923. Serial No. 654,960.

deleteriously affect its insulating properties.'

This may be accomplished by coiling the coated strand in superimposed layers and surrounding and supporting it with powdered soapstone to prevent deformationof thercoating and adhesion of adjacent turns.

',tently deposit material on a strand.

Another object is to separate layers ofA strand by depositing material upon each layer of strand as it is completed.y

An apparatus madey in accordance with the inventionmay comprise a hopper. containing powdered soapstone located above ra storage receptacle, and means operated by the movement of the storage receptacle to cause the hopper to discharge a supply of the soapstone into the storage receptacle at` predetermined intervals.

These and `other features of the invention lnot specifically mentioned will appear from the following 'description and the accompanying drawings, in which l 1 is a view in side elevation of a machine embodying the invention;

KFig. 2 is a viewin v.end elevation of the same;4 Y Fig.`3 is a partial plan view of the mechanismshowing the pan and hopper;

Fig. 4 shows an enlarged partial section on the line 4-4 of Fig. 1, and

Fig..5 is a fragmentary plan view of the driving mechanism and associated parts.

Referring to the drawings in detail, a base plate 10, which may be of cast metal,y has parallel ridges 11 on its upper surface running longitudinally thereof to form a track for a carriage, shown generally at 12, whlch moves reciproca-lly thereon during the operation ofthe machine. At either yend of this base plate are afliXed uprights 14 and 16 respectively, while a third upright 18 carries a capstan 38 which receives the wire .13 from a covering machine (not shown) and feeds it into the coiling machine. A drive shaft 2O is carried by bearings in. up-

.with another bevel An object of the invention is to intermitrights 16 and 18 and may be operated by a driven pulley 22 keyed to this shaft and rotated by a belt 24 which may be connected to any suitable source of power (not shown) `to furnish a variable speed drive therefor. IOn one end of the drive shaft is affixed a bevel gear 26 which, acting in conjunction gear 27, serves to drive a vertical shaft 28, and this in turn through another pair of bevel gears 30 and 32 and a pinion 34 and a rack gear 36 serves to rotate the capstan 38. y .Also carried by the drive shaft 20 is a clutch member 40 in the form of a truncated cone, which cooperates with a second conical .member 42 by means of `a belt 44 to drive this second member, and the speed of the second member as to that of the first may .be varied by moving the handle 46 connected to a'sliding yoke 48 to change the position of the belt 44. The second conical member has integral therewith a bevel gear 50 which, cooperating with a bevel gear 52, drives a shaft 54 supported between uprights A.14 and 16. Keyed to this shaft is a wheel 56, upon the hub of which is affixed a sprocket wheel 58. The periphery of the wheel 56 carries a tire 23, which may be of rubber, as does also a second wheel 60, integral with a bushing 62 which rides loosely upon the shaft 54 so as to be able to rotate independently thereof. One side of this bushing is machined to form a reversible screw thread 64, and annular plates 66 lbearing against the ends of the threaded part of the bushing 62 `form a thrust bearing therefor, causing the carriage to be moved with the bushing. The remainder. of the bushing has a keyway cut longitudinally thereof in which a key 25 is l secured by a set screw 15, and the position of wheel on the bushing may be changed by means of the set screw to regulate the mean rate of rotation of the wheel, as will be more fully brought out later. A post 84, afIiXed to the bed of the machine, carri-es in its upper end a dog 86 which lits into the reversible thread of the bushing, and is reversed as it reaches eitherI end of the thread in a wellknown manner. From the sprocket 58 a drive chain 19 encircles a second sprocketon shaft 68,.this shaft'being carried by bearings in uprights 14 and 16 and having integral with it two drive clutch members 70, the purpose of which will be made clear later.

haelt.

i 96 to the shaft ot the brush 94;

To consider the carriage l2 in det-ail, a framework hzflving' two end members 72, each ot which is-supported on two wheels 74, carries a rotatable disk 76, mounted-on a ball `bearing` pivot 78, which yrests on the two f and in which a brush 94 is rotatably mount- 'ed over a slotr 96 in thebottom ot the hopper. Jl. Ylrictuni drive wheel 9S is rotatably mounted on the lower end ol an arm 97 pivoted at 93, the upper end ot this arm l'ieing held betweena screw 89 and a spring,r 85. A

aullev 81 intee'ral with wheel 98, arries ay l. .v 7 en belt 77 which, oi'ierating around idlers 73 and pulley 69,transmits the motion ot wheel The idlers Tl are mounted on either side olf a pivoted weight `which acts to lecp the belt Ti' laut at all times.

it. will be noted that the pulley 69 is fixed -upon an arm 'trom post 90, while the hopper is nivotally mounted upon a sleeve 61v which fi' over a post 57 integral with arm 90. A pin 5l lin post and riding in a slot 47 in the sleeve 6l serves to limit the rotation o'lithe s neve, while a locking` pin 4l., being l forced inwardly by spring lits into a devprt sion `in post 57 when the hopper is in tion 'tor operationto lock the sleeve 1n place; ln order to permit the hopper to j lined at one end and a projection trom the brush sha'lt lits into it shown at 33, thus pern'iittine` the separation ot these parts when the hopper is swung away trom the pan, and-their union when it is swung rThe operation ot the lmachine is as .tollows:

turns around the capstau 3S and its end laid in the pan S0, the bottom ot which -isllirst covered with powdered soapstone to form a seating' Ytor the first layer ot wire. The carriage l2 should be at either the outer or the inner limitot' its mov ment when starting' an operation so as to make the first layero'l strand continuous across the bottom et the panA The machine is then ready to he operated by st :ting the mechanifun which operates the drive pulley 2Q. This causes the capstan 38 to revolve and feed wire into the pan 'fand also, acting throuejh the variable speed Iswing on its pivot, the shaft o'tI the pulley (39 machine (not shown), is given a` and 52, causes the pan 80 to be rotated by causing the rotation ot' the wheel 56. Table 76 resting on the other wheel 6() causes 'this wheel to rotate also and with it the bushingl 62 which is integral with it. The screw thread in this bushing, acting Vin conjunction with the dog 86 in the manner previously described, causes'the carriage to be rolled back and ttorth on the base l0.

`1 Wheel 56 remains in the saine position on the shatt 54 a t al times, but wheel 60, being integral with the bushing, moves laterally with the arri-age, and Ait will Vbe noted that when the carriage `is fzt the right-hand limit ot' its'travel, the wheel 56 is acting near the periphery ot vthe table, while at the other limit ol its travel the reverse is true. The peripheral speed ot wheel 56 is regulated by means ot the variable speed cones 40 and 42 so as to be the same as the speedy oit'the coated wire as'itleaves the capstan, and a` change et speed ot the drive wheel 56 necessarily causes a corresponding change in the "rate ot rotation ot the screw 64 which is integral with driven WheelGO.

The wheel 60, being; driven by theitable,`l

'will be rotated slowly when wheel 56 is near the periphery ot they table and the table is beine* rotated slowly; and rapidly when it is near the center, since the tablcis then beine` swiftly` rotated by wheel 56. The mean rate ot rotation ot' wheel 6() may beincreased by loosening set screw 25'and moving the wheel along the. bushing toward the peripheryl of the table.l or decreased by inevingv it toward the'center. This adjustment is Ytor increasing or decreasing the lead tor dil'l'erent sizes of strand. The result is clear that when a strand oit' wire isteeding into the pan near its periphery, the pan is operatingy at a proper speed to receive itand is slowly moved laterally by the action ofl the dof@r 86 in the Screw thread 64e since theturns are large here and each one requires a comparatively large amount otA strandpwhile when the strand is feedingl into the pan near its center, the pan is still rotatingat'the proper speed to receive itbut has a faster lateral movement which is neccssarysince here the turns are sinalland require a com paratively small amount' otstrand per turn.

When the carriage reacheseither its outer or its inner limit, the wheel 98 rides up on Y drive cones i-O and 4t2 and bevel 50 T0 into contact with the other drivingmember, when it is again rotated. The positions of the driving members 7 0 are adjustable on their shaft by means ofset screws 29 to permit regulation of the time at which they shall engage and release Wheel 98.

This intermittent deposit of soapstone gives a very desirable seating Jfor the Wire and allows operation of the device at a high rate ot' speed.

What is claimed is:

l. In a machine for handling strand, movable strand receiving means, a receptacle for material, and means actuated at predetermined intervals during the movement of the receiver to discharge material from the receptacle into the receiver.

2. In a machine for handling strand, a strand receiving means, a receptacle for material havinga relative movement with respect to the receptacle, .and means associated with the receptacle to cause a dis- 3. In a machine for handling strand,

means for storing strand, a receptacle for material, and means associated With the receptacle to cause la discharge of material from the receptacle onto the strand at predetermined intervals during thestoring of the strand.

4. In a machine for handling strand, a receiver for storing strand in layers, a receptacle for material, and means associated with the receiver to discharge material from the receptacle onto the strand as each layer thereof is completed.

In Witness whereof, I hereunto subscribe my name this 20th day of July A. D., 1923.

CARL DEMPSTER HART.

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