US2525230A - Wire rope making machine - Google Patents

Description

W. T. MaCCREADIE WIRE ROPE MAKING MACHINE og. 1o, 195o Filed March 2, 149

5 Sheets-Sheet 1 MR. mm .mm f/.m M

Oct. l0, 1950 W. T. MaCCREADlE WIRE ROPE MAKING MACHINE 5 Sheets-Sheet 2 Filed March 2, 1949 Oct. 10, 1950 w. T. MaccREADlE wm: ROPE MAKING lMACHINE 5 Sheets-Sheet 3 Filed llarch 2, '1949 EN ,om

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w. T. Ma'GCREADlE WIRE ROPE MAKING MACHINE ocr. 1o, 195ov 5 sheets-sheet 4 Filed Marsh 2, 1949 INV TOR. j, la

Oct. 10, 1950 w, T1 MaoREAmE 2,525,230

WIRE ROPE MAKING MACHINE Filed March 2, 1949 Patented Oct. 10, 1950 UNITED STATES PATENT OFFICE WIRE ROPE MAKING MACHINE William T. MacCreadie, Lewisburg, Pa. Application March 2, 1949, Serial No. 79,230

10 Claims. .1v

The primary purpose of the invention is to provide a machine which is wholly automatic for the production of twisted cable or rope which is capable of producing cable or rope atmuch greater speeds than has been found possible heretofoe with other machines. It is also a purpose of the invention to provide a machine which properly `twists the various strands of the cable or rope into finished form, and when the strands have all been twisted upon one another the cable comes from the machine to be wound upon the wind-up bobbin Without a twistting motion. The purpose of this is to facilitate winding of the completed rope upon the windup bobbin.

Figure 1 of the drawings is a `top plan view of a wire making machine constructed in accordance with the invention,

Figure 2 is a side elevation of the same machine, parts broken away,

Figure 3 is an enlarged view of the frame for carrying the supply bobbins and associated mechanism,

Figure 4 is a fragmentary sectional view showing the twisting drum and the mechanism associated therewith for operating it,

Figure 5 is a similar view of the supply bobbin and the means by which it is operated,

Figure 6 is a sectional view taken substantially upon the line 6-6 of Figure 5,

Figure 'l is a view similar to Figure 4 and disclosing a modified form of the invention,

Figure 8 is a top plan view of a, modified form of the invention.

Figure 9 is a further modification showing the small bobbins arranged all in a line, and

Figure 10 is an enlarged fragmentary view of the arrangement shown in Figure 9.

Referring to Figures 1 and 2, a main horizontally disposed rotating frame is indicated at I 0. The ends of the mainframe I0 are provided with axiallydisposedv aligned trunnions or stub shafts I2 rotatably supported in bearings at the upper ends of supporting posts I3. One of the trunnions I2 has affixed thereto a drive pulley I4 over which passes a belt I5 which also passes over a pulley I6 affixed to a shaft Il mounted in suitable bearings I8 and also having a drum I9 over which passes a belt 20 receiving power from a pulley on the end of a shaft 2l of a motor 22. By the power connection just described itis apparent that operation of the motor will cause the main frame I0 to rotate in a direction to be determined by the direction of rotation of the motor shaft.

The main frame I0 consists of transversely disposed heads 23 comprising its opposite ends, connected by horizontal elongated frame members 24 in any desired number. Spaced inwardly from the heads 23, connected to the members 24 and constituting also a part of the main frame are plates 25, which plates constitute the main supports for the mechanism now to be described.

Arranged within the main frame and supported thereby-is an inner frame represented generally at 26. This inner frame comprises a series of spaced parallel heads 2l rigidly connected to one another by longitudinally disposed bars 28 in any desired number and parallel with elongated members 24. The inner frame 26, in the operation of the machine, remains stationary, while the outer or main frame I0 rotates relatively to the inner frame.

The inner frame 26 is coaxial with the main or outer frame, and arranged longitudinally within the said inner frame are a plurality of supply bobbin carriages 29, all of which are pivoted for rotation within the said inner frame and upon axes parallel to the axis of the frame 26 and equally spaced from the said axis (see Fig. 1). Each of the supply bobbin carriages 29 has disposed laterally thereof a supporting shaft 30 upon which the supply spools or bobbins 3| are rotatably mounted. Each of the said carriages 29 is supported for rotation in the inner frame upon trunnions represented at 32.

`erted upon the plate 34 may be regulated.

One of the trunnions (Fig. 5) 32 of each supply bobbin carriage passes through the adjacent plate 21 and has secured to its outer end a pinion 38, which pinions are in mesh with a gear 39 disposed axially of and rotatably mounted adjacent plate 25 of the main or outer frame I0. The gear 39 rotates upon a stub shaft 4I affixed to plate 21 of the stationary or inner frame, and this gear 39 has a hollow shaft portion -40 extending loosely through the frame member 25 with a gear of reduced size 42 either integral with or rigidly secured tothe said portion. The reduced gear 42`is in mesh with a gear 43 affixed The gears 45, 46, 48 and 49 are all of equal dlameter.

Arranged for rotation within the inner frame 26 and in the longitudinal axis thereof is a frame 50 (Fig. 4) which carries a transversely disposed shaft 5I upon which is rotatably mounted a drum 52. The trunnions 53 and 54', which are secured to and support this frame, are hollow, and trunnion 53 as affixed thereto a conventional twisting die 54 through which pass the Wires 33 leading f rom the supply bobbns 3| carried by the bobbin supply carriages 29. The strands 33, gathering and being twisted together in the die 54 pass as a single strand 33 therefrom and around the drum 52 and through the hollow supporting trunnion 54 at the outer end of the frame 58 and over a pulley 55 secured to the head 23 at the outer end of the main frame. The twisted strand then passes laterally from the guide pulley 55 to a similar guide pulley 56 secured near the periphery of the frame IIJ to a plate 25, through which it passes and travels longitudinally of the frame toward the inner end thereof and over a guide pulley 51 also secured to the rotating frame Ill. The inner head 23 of the outer frame is provided on its inner face with a guide pulley 58 having its periphery disposed in the axis of the said frame and over which the strand 33 passes through the hollow trunnion I2 which supports the said frame. The course of the twisted strand from this point on will be later described.

Referring back to the twister frame and particularly to Fig. 4 of the drawing, it will be seen that the hollow vtrunnion 54 has a pinion 59 afxed to its outer end. The pinion 59 is in mesh with an intermediate pinion 60 rotatably supported by the plate and the intermediate pinion '60 is in mesh with a pinion or gear 6I secured upon a shaft 62 having bearing at its ends in the plate 25 and the head 23 of the outer rotating frame. The outer end of the shaft 62 has a gear 63 affixed thereto, and this gear is in mesh with a pinion 64 pinned as at 65 to the bearing member I3. The ratio of the interconnected gears 59 to 64 inclusive is such that the frame rotates et twice the speed of rotation of the main or outer frame IIJ. It will thus be seen that the wires 33 passing through the die 54 are given a twisting action by rotation of the frame 56 so that the strand 33 is formed.

We have seen that the single Wires 33 in a number to be determined by the number of supply bobbins are converged in the twisting die 54 and there formed into the strand 33', which strand passes around the drum 52 while the latter is rotated in the axis of the machine, from whence the twisted strand passes over the pulleys 55, 56, 51 and 58 and out through the hollow stub shaft I2. As the strand 33' emerges from the hollow shaft 54, it is rotating in the same direction as the outer or main frame IIJ, however, as the strand passes laterally over pulley and rearwardly over pulley 56 this direction of rotation of the strand is then reversed. Due to the fact,

however, that the inner frame is stationary while the outer frame is rotating, the speed of rotary movement of the strand 33' is reduced by onehalf as it progresses rearwardly of the mainframe and near the periphery thereof. As the strand then passes over pulleys 51 and 58 and back into the axial center of the frame, the remaining twisting or rotating speed of the strand is eliminated so that the complete strand as it issues from the hollow stub shaft I2 has no rotative movement. This is of decided advantage in Winding the completed strand upon the wind-up bobbin, as it enables the strand to be more conveniently handled.

Any desired type of wind-up bobbin and windup bobbin mechanism may be employed for taking off the completed strand. The drawing discloses a typical wind-up bobbin, guide'and mechanism for operating the elements. In the drawing, the strand 33T passes over a haul-off drum 66 supported by a shaft 61 mounted in suitable bearings 68, and this shaft lcarries a pulley 69 over which passes a belt 10 which receives power from a shaft 1I vhaving a beveled gear 12 at one end. The gear 12 is in mesh with a similar beveled gear 1 3 aixed to a shaft 14 leading to gear reducing mechanism of conventional type located within a gear reducing box 51,5.

After `taking several turns around the hauloff reel 66, the strand 33' passes to a wind-up bobbin indicated at 16. This bobbin is carried by a shaft 11 mounted in suitable bearings as shown, and a conventional guide represented generally at 18 determines the laps upon the wind-up bobbin. The shaft 11 receives its power through a beveled gear 19 secured to one end of the shaft, which gear is in mesh with a similar gear secured upon a vertically disposed shaft BI mounted in suitable bearings, and the shaft 8| is equipped with a beveled gear 82 in mesh with a similar gear 83 on the adjacent end of shaft 14. A friction brake of conventional form is indicated at 84 in order that proper tension upon the strand 33' may be maintained between vthe wind-up bobbin and the haul-off drum 55.

The guide mechanism 18 as above mentioned is driven by belt 18 passing over pulley 18b connected to shaft 11 and also over pulley 18c affixed to guide member 18, as shown in Figures 1 and 2.

In instances where heavier gauge wire is employed to make the complete strand, it is desirable that haul-off mechanism be substituted for the twisting drum 52 as above described. Figure 7 of the drawings discloses this variation. In the said figure, the wire 33 enters the twister frame 58 and takes several laps around the hauloff drum 85, from whence it passes in the manner already described out through the hollow trunnion 54 and over 'the pulley 55 in the manner heretofore described.

In the present instance, however, the hollow shaft 54' has affixed thereto a gear 85, which gear is pinned as at 81 to the stationary frame plate 25. A shaft 88 rotatably mounted in a suitable bearing 89 on one side of the frame 50 has a gear 90 at one end in mesh with the gear 86, while a worm 9I at the opposite end of said shaft 88 is in mesh with a Worm gear 92 affixed to the shaft 5I which carries the haul-off drum 85.

From this construction, it is apparent that as the gear 86 is affixed to the stationary frame plate 21, and as the gear 59 is rotating the frame' 50, the gear 9D is being rotated as it travels in planetary manner around the stationary gear allel with shaft |03.

asaaaso 06. The rotation thus applied to gear 80 is trans--v with gear |21. The 8ear`|21 is afxed to a shaft |20 which, in turn, is rigidly and nonnumber of other similar stranders, and in association with other means now to be described, it is possible to produce from a number of wires a series of twisted strands which may all Ibe brought together and twisted into a complete cable or rope upon a proper core element.

Figure 8 of the drawing shows an assembly by which this result may be' accomplished. In the said figure, there are shown six stranders or strand-forming vmachines as above fully described assembled in relationship to one another. These stranders are represented at A, B, C, D, E and F. It will be observed that the strands formed by each of these stranders are brought together in a twisting die 93 and are twisted around a core member 94 leading from a core bobbin 95 rotatably mounted in a carriage or frame 96 which is rotatably supported by its trunnions 91 and bearings 98. A proper drag upon the bobbin may be brought about by the brake 99 of the construction and character heretofore described. Rotative movement of the carriage 96 upon its trunnions, in order that a twisting action may be given to the core 94, is brought about by a belt passing over a pulley |0| on a carriage trunnion 91. passes over pulley |02 afixed to the end of a power shaft |03 mounted in suitable bearings and extending longitudinally of the general assembly. The shaft |03 receives its power .from a belt |04 passing over a pulley |05 atlixed to shaft |03 and also over pulley |06 aixed to the main powerv shaft |01 spaced from and par- The shaft |01 is driven from the motor |08 by the belt and pulley arrangement |09 as shown. 'I'he power necessary to operate the several stranders A to F inclusive, is derived from one or the other of the shafts |03 and |01 as will be understood and as shown. The strands 33' and the core 94 are brought together in proper twisted relationship in the twisting die 93 carried by the cable wind-up bobbin carriage ||0. This carriage is mounted for rotation on its trunnions and ||2 in suitable bearings ||3. The cable wind-up bobbin "||4 is rotatably mounted upon its shaft ||5 disposed latrally within the carriage ||0. The guide or lapper for leading the cable properly to the bobbin is represented generally\at ||6 and a haul-off drum ||1 is also arranged within the carriage ||0 and interposed between the die 93 and the guide mechanism ||6. A shaft ||8 is mounted at one side and longitudinally of the carriage ||0 in suitable bearings to drive the haul-oil bobbin, the guide mechanism and the cable wind-up bobbin. The haul-olf drum shaft has one end provided with a beveled gear 9 in mesh with a similar gear |20 aiiixed to the shaft ||8, while the operating shaft of the guide mechanism has attached thereto a beveled gear |2| in mesh with a, similar gear |22 affixed to shaft ||8. The shaft which supports the cable wind-up bobbin also is provided with a beveled gear |23 in mesh with a similar gear |24 ailixed to the shaft 8. The shaft ||8 is provided with a gear |25 in mesh with an intermediate or idle gear |28 rotatably carried by the carriage H0. Idle gear 26 is in mesh This belt rotatably securedto a. support |29. The trunnion ||2 constitutes a hollow shaft which is affixed at its inner end to the carriage ||0 and extends through the bearing ||3 and carries at its outer end a pulley |30, over which passes a belt |3| similarly passing over a pulley |32 afa xed to the power shaft |03.

A suitable drag or friction brake |33 is associated with the cable wind-up bobbin to maintain a constant and desired tension upon the rope as it is being wound upon the bobbin.

From this description it is apparent that as power is imparted to the hollow trunnion ||2, the cable wind-up bobbin carriage ||0 is caused to rotate, carrying with it the haul-olf |1, guide mechanism IIE, and the wind-up bobbin ||4.y

At the same time, the idle gear |26 travelling around fixed gear |21 imparts, through gear |25, rotative movement to shaft ||8 which. through the several beveled gear connections shown, drives the haul-oil drum, the guide mechanism and rotates the cable wind-up bobbin.

It will be understood that the several units which make up the entire combination will be soregulated as to speed of operation as to synchronize with one another in the delivery of the strands or cables to the proper place in timely manner to produce a complete and perfect cable or rope.

The core member 94 may be of hemp, paper, wire or it may be a strand similar to the strands 33 as produced by the stranding mechanism.

It may be found desirable to form a twisted strand core for the rope at the same time the outer or enveloping strands are being made and assembled with the core. vIn this event, the bobbin 95 and its carriage 96 will be dispensed with, and substituted therefor will be a strander similar to that heretofore described.

The stranders above described have their supply bobbins and the supporting carriages therefor radially spaced within the inner frame. Due to this fact, it is necessary that the frame 26 be relatively wide, which might be of disadvantage where it is necessary to economize space, or Where it is necessary to obtain greater speed in production. Therefore, I propose an alternate or modified arrangement of ysupply bobbins and carriages therefor, which, instead of being arranged in spaced radial relationship,

-carriages and their associated mechanisms,

three in number, arranged in spaced longitudinal alignment and all equipped so as to operate in synchronism and in cooperation with one another. y

In the drawing, at |34 I have shown three bearings arranged in spaced relationship to one another and supported for rotation within which is an elongated frame whose longitudinal bars |35 correspond with or are equivalent to the main frame bars 24 as heretofore described. The longitudinal bars |35 are connected at their ends by the heads |36, with plates |31 also connecting the bars and spaced inwardly from heads |36. Each of the heads |36 has arranged centrally and disposed longitudinally thereof an outwardly extending trunnion |38 having bearing in the posts or brackets-|39. The trunnion |30 at one end of the frame has aixed there- 7 to a pulley |40 for accommodation of a drive belt from a. suitable source of power, not shown. The same trunnion has loosely mounted thereon a gear |4| which is pinned as at |42 to the post |39. The adjacent end of the frame car-` ries a rotatable shaft |43 oset from the longitudinal center of the frame, to one end of which is aiiixed a gear |44 in mesh with gear |4|, the arrangement being such that as the shaft |38 is rotated, the gear |44 travels in planetary manner around iixed gear |4| to impart rotary movement to the shaft |43. Shaft |43 has aillxed thereto another gear |44' in mesh with an intermediate or idler gear |45 which l in turn is in mesh with a gear |46 attached to a shaft |41 mounted for rotation in the adjacent plate |31 and axially aligned with the shaft |38. The shaft |41 which has bearing in the plate |31, loosely carries a gear |48 which meshes with a gear |49 secured to shaft |43. The gear |48 is rigidly connected with a plate |50 constituting an end of the inner or stationary frame. Also loosely engaged upon the shaft |41 and aflxed as by a pin |5| to the plate |50. is a gear |52 in mesh with a pinion |53 carried by a shaft |54 mounted in a bearing |55 secured to the haul-olf carriage |56. This haulol carriage supports a transversely disposed loosely supported by trunnion |61 and alxed to or forming part of the plate |50.

The outer end of shaft |1| has ail'ixed thereto a gear |14 in mesh with a gear |15 loosely mounted upon trunnion |38 and rigidly connected to the post |39 by a pin |16.

The supply bobbin carriage is provided with a laterally disposed shaft |11 upon which is rotatably mounted a bobbin |18, carrying' the supply wire |19. In order to regulate the tension of the wire |19 in being drawn from the supply bobbin |18 a friction brake is provided. This brake includes a plate |80 arranged to contact the peripheral edges of the bobbin anges, and has a rearwardly projecting threaded stem 8| extending loosely into an opening disposed axially in frame |65. This stem is provided with a threaded nut |82 and interposed between the nut and the adjacent end of the supply bobbin carriage is an expansion spring |83. It is obvious from this construction that adjustment of the nut governs the degree of spring tension exerted by the brake upon the peripheral edges of the bobbin.

From the foregoing it is apparent that as the outer frame rotates it carries with it the shaft shaft |51 to which `is secured a haul-off drum |58. One end of the shaft |51 has attached thereto a worm gear |59 in mesh with a worm |60 secured to the shaft |54. g

It is apparent from the foregoing that rotative movement applied to trunnion |38 by power pulley will cause the main frame to rotate in its bearings, and in so doing power will be transmitted from xed pinion |4| to gear |44 creating rotative movement in shaft |43 and through gears |44, |44', |45 and |46 the latter will rotate the shaft 41, which being affixed to the haul-oil' carriage |56, causes the latter to rotate. Inasmuch as gear |52 is xed against rotation, the pinion |53 will travel around the same and rotative movement will be created in shaft |54, being transmitted through the worm and worm gear construction to the shaft |51,\causing the haul-off drum to rotate. `It will be noted that the shaft |41 is hollow throughout its length so that a strand may be drawn therethrough in the manner hereafter described. The inner end of the hauloii' carriage is mounted for rotation on a hollow trunnion |6|, having bearing in the cross member |62 forming a part of the inner frame, and the extreme end of the hollow shaft |6| carries a twister die of conventional form indicated at |63.

Arranged in tandem and longitudinally within an inner frame comprising heads or plates and the longitudinal side bars |64, are a series of supply bobbin carriages |65. The bobbin carrlage |65 at that end of the frame most remote from the haul-off drum comprises the rectangular carriage as shown supported for rotative movement in the longitudinal axis of the main frame upon trunnions |66 and |61 having bearing in the adjacent plates |50. The trunnion |61 extends through and is rotatably mounted in plate |31, having a gear |68 aiiixed to its outer |1|, the gear |14 of which travels around and is intermeshingly engaged with fixed gear |15. This action imparts rotation to shaft |1| which, through gears |10, |69 and |68 imparts rotative movement to trunnion 61 as well as to the carriage to which it is affixed. Due to intermeshing engagement between gear |12 and gear |13, the inner frame is maintained in a stationary manner.

The foregoing is a detailed description of the bobbin structure at the far end of the supporting y frame, the other bobbin structures arranged in tandem in the frame are of similar construction but whereas the end bobbin frame derives its rotative motion from shaft |10, the remaining bobbin frames are interconnected so as to receive rotative motion one from another. The inner end of each bobbin frame |65 has its hollow trunnion |66 mounted in an adjacent plate |50 axially of the main frame. 'This trunnion has a gear |84 affixed thereto which is in mesh with gear |85 ailixed to counter shaft |86 having bearing at its ends in adjacent plates |50. The said counter shaft also has a gear |81 secured thereto which meshes with a gear |88 secured to the trunnion |66' of the next adjacent bobbin frame |65. In this manner it is seen that the supply bobbin frames are all driven in tandem.

The Wires 33 from these several bobbing are led through their hollow trunnions |68, from whence they pass over guides |89 laterally of the frame to guides |90 at the sides of the inner frame and thus forwardly of the machine to the twister die |63 disposed axially thereof where they are formed into strand 33. 'I'he strand then passes over guide |9| and laterally of the main frame to guide |92, then rearwardly through suitable holes in plates |31 to guide |93, then inwardly over guide |94 in the longitudinal center of the frame and out through hollow trunnion |38 to a suitable wind-up bobbin, not shown.

The inner carriage or frame remains stationary while the bobbin holders, the twister die and the outside frame or drum all turn in the same direction, the speed of rotation of the outer frame being one-half the speed of the twister die. When the wires are twisted into the strand, the latter passes outwardly and then rearwardly and out through the main frame bearing at the far end of the machine. The outer frame, turning at a 9 speed one-half that of the twister die, the strand will pass from the machine without turning, thereby permitting it to be wound up without turning the wind-up bobbin. If greater speed is required, the outer frame may be turned at a speed less than one-half the speed of the twister die, in which a turning wind-up bobbin will be required, as will be understood.

It is obvious from the foregoing that while the machine is designed primarily for making small strand or rope, with minor changes it may be adapted to the manufacture of ropes or cables of larger sizes. The primary purpose of the machine, las has been stated, is to obtain high speeds as well as to make strand or rope in a single operation. In making smaller ropes Aor strands no haul-01T need be provided inside understood that these relative speeds may be adjusted as desired.

It will be obvious that if the outer frame turns at half the speed of the twister die, the strand will not be rotating when it emerges from the frame and may therefore be wound up on a nonrotating wind-up bobbin. If greater speed of production is needed, the outer frame may be rotated at a speed less than half the speed of rotation of the twister die and the strand is then wound up by means'of a rotating wind-up bobbin.

In instan-ces where larger wire is used it may become necessary to employ a haul-off with a twister die. This arrangement is shown in Fig. 9 of the drawings. In this instance, the worm gearing arrangement will bring about a speed to the haul-ofi'y drum necessary to produce the desired result.

I claim:

y 1. In a. wire rope making imachine, a rotating outer frame, a stationary frame within said outer frame, bobbin carriages rotatably mounted within said stationary frame, bobbins in said carriages, a drum and a die supported for rotation in the axis of said outer frame and adapted to receive wires from said bobbins, means to lead the strand from said drum laterally of said outer frame and in a reverse direction therein and back into the axis thereof, and a wind-up drum lto receive said strand.

. 2. In a Wire rope making machine, a rotating outer frame, a stationary frame within said outer frame, bobbin carriages rotatably supported within said stationary frame, 4bobbins in said bobbin carriages, a drum frame and a die rotatably supported in the axis of said stationary frame adapted to receive Wires from said bobbins, guide members on said outer frame disposed eccentrically thereof to receive the strand from said drum, and a wind-up bobbin to receive the strand from said frame.

3. In a wire rope making machine, a rotating outerl frame, a stationary frame within said outer frame, bobbin'carriages rotatably mounted within said stationary frame, bobbins `in said carriages, a drum and a die mounted for rotationin the axis of said rotating frame and adapted to receive wires Irorm said bobbins, guide members vcarried by said outer frame near the periphery thereof to lead the strand laterally from the axis ofthe said frame and in a reverse direction therein and back into the axis of said outer frame, and a Wind-up bobbin to receive said strand.

4. In a wire rope making machine, a rotating outer frame, a stationary frame within said outer frame, bobbins rotatably mounted within said stationary frame, a twisting die rotatably mounted in the axis of said rotatable frame and adapted to receive Wires from said bobbins, guide members carried by said rotatable frame and disposed eccentrically thereof adapted to receive the strand from said die, a guide to lead the strand back into the axis of said frame, and a wind-up bobbin to receive said strand.

5. In a wirewrope making machine, a rotating outer frame, a stationary frame Within said outer frame, bobbin carriages mounted with said stationary frame, means for rotating said carriages in the same direction as said outer frame, bobbins in said carriages, a drum and a die mounted for rotation in the axis of said outer frame, means for rotating said drum and die in the same direction as said outer frame, said die and drum adapted to receive wiresfrom said bobbins, and a wind-up bobbin to receive the strand from said drum. l

6. In a wire rope making machine, a rotating outer frame, a stationary frame Within said outer frame, bobbin carriages mounted within said stationary frame, means for rotating said carriages in the same direction as said outer frame, bobbins in said carriages, a, drum and a die mounted for rotation in the axis of said outer frame, means for rotating said drum and die in the same direction as said outer frame, said die and drum adapted to receive wires from said bobbins, and a stationary wind-up bobbin to receive the strand from said drum.

7. In a wire rope making machine, a rotating outer frame, a stationary frame within said outer frame, bobbin carriages mounted within said stationary frame, means for rotating said carriages in the same direction as said outer frame, bobbins in said carriages, a drum and a die mounted for rotation in the axis of said outer frame, means for rotating said drum and die in the same direction as said outer frame, said die and drum adapted to receive wires from said bobbins, a wind-up bobbin to receive the strand from said drum, and means for impartf ing lateral rotation to said wind-up bobbin.

8. In a wire rope making machine, a plurality of rotating outer frames, a, stationary'frame within each of said outer frames, bobbin carriages mounted within said stationary frames, means for rotating said carriages, bobbins in said carriages, a drum and a die rotatably mounted within each of said inner frames to receive wires from said bobbins, a rotatable core bobbin, a second twister die to receive a wire from-said core bobbin as well as strands from said first named dies, a haul-off drum, and a wind-up bobbin to receive the strand from said haul-off drum. Y

9.l In a wire rope making machine, a plurality of rotating outer frames, a stationary frame within each of said outer frames, bobbin carriages mounted within said stationary frames, means for rotating said carriages, bobbins in said carriages, a drum and a die rotatably mounted Within each of said inner frames to receive wires from said bobbins, a rotatable core bobbin, a second twister die to receive a wire from said core bobbin as Well as strands from said iirst named dies, a haul-oil drum, a wind-up bobbin to receive the strand from said haul-oi! drum, and means for rotating said last named twister die, haul-off drum and wind-up bobbin.

10. In a wire rope making machine. an outer frame mounted for rotation on a horizontal axis, a stationary inner frame within said outer frame pivotally mounted in the axis of the latter. bobbin frames rotatably mounted in said inner frame, a flier bobbin and a twister die rotatably mounted within said inner frame with their axes coincidentaltherewith, gears operable upon rotation of said outer frame to rotate said bobbin frames, gears operable upon rotation of said outer frame to rotate said flier bobbin and said twister die, and bobbins rotatably supported in y said bobbin frames.

WILLIAM T. MACCREADIE.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS

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