US1230008A - Machine for armoring cables. - Google Patents

Description

G. E. MiRFIELD @n H. NMLLVlYERn MACHINE FORARMOIHNG CABLES.

APPLlcATloN FILED JULY l. |915.

@ mama ,me 12, w17.

4 sHEETs-sHEET 1. @l if 21 G. E. MIRFIELD & F. H. NULLNIEYER.

MACHINE FOR ARMORING CABLES.

APPLmATloN FILED JULY x. 1915.

1,230,008. Patented June 12, 1917.

4 SHEETS-SHEET 2.

Geom E. Mirfi/e,

L. v ran/z Z1'. Mal/meyer j@ es.

'G. E. MIRFIELD I F. H. NULLMEYER.

MACHINE FOR ARMORING CABLES.

APPLICATION FILED IuLY I. I9I5.

1,230,008., Imenfed June I2, 1917.

4 SHEETS-SHEET 4.

75# wil?? FIELD and FRANK H. NUiLMEYER, citizens cable for the purpose of inclosing the same land protecting it.

leo

' receiving reel to allow of a greater or turesv of construction GEORGE E. MIRFILID ANDFRANK H. NULLMEYER, F YOUNGSTOWN, OHIO, ASSIGNORS, BY MESNE ASSIGNMENTS, TO THE YOUNGSTOWN SHEET AND TUBE COMPANY, OF YOUNGSTOWN, OHIO, .A CORPORATION 0F OHIO. y

MACHINE FOB ABMOBNG CABLES.

Patented June f1.2, 1217.

.application led July 1, 191'5. Serial No. 37,536.

Fig. is a detail of the means for applying friction to certain portions of the mechanism for driving the receiving reel;

Fig. 6 is an enlarged side view of the gear connection for rotating the receiving reel; line 7--7 of Fig. 6;

1,230g9 Specification of Letters Patent.

To all 'it may concern.' A v Be it known that we, GEORGE E. MLR- of the United States,

residing at Youngstown, in the county of Mahoning and State of Ohio, have invented certain new and use- Fig. 7 is a section on ful improvements in Machines for Armor- Fig. 8 is a side view on an enlarged scale ing Cables, of which the following is a of the feeding rolls for the wire and the specication. dies for coiling the wire together with the The present invention relates to a machine means for driving the feed rolls; and

Fig.v 9 is a section taken on line 9-9 of for placing coils of wire around an electric y Fig. 8, looking in the direction of the arrows.

In the art to which the present invention One of the objects of the invention is to provide a machine in which the cable will be moved longitudinally andA at the same time given rotary movement about its longitudinal axis.

A further object of the invention is to rprovide means for feeding wires into position to wrap around the cable while' the cable is being fed through the machine.

A' further object of the invention is, to provide an upper or supply drum and a lower or receiving drum for the cable, and to revolve these drums, about their axes and also give to them a rotary movement about a center at right angles to their axes.

A further obect of the invention is to provide means or enabling a slippage between the lower or'receiving drum and the means for rotating the same in accordance with the amount of material wound thereon.

A further object of the invention is to provide means which can be actuated "by the operator for varying the friction or tension upon certain of the operating parts of 1the ess slippage of the reel with respect to the meansfor driving it. v

The invention further consistsyfin the feaand comation of parts hereinafter described and; claimed.

In 4the drawings: f Figure 1 is a side view the'present invention; Fig. ,2 is a face view Fig. 1;

ig. 3 is a plan viewv of said machine; Fig. 4 is a section on line Li---Llvof Fig. 1,

looking in the direction of e arrows;

ofthe machine of of the parts shown in by the operation of the machine,

the supp relates,the object to be accomplished yby' machines of this type is to coil a double layer of wire about a cable Vwith the outer layer breakin joints with the inner layer. ln the mac ine of the present invention a double ceiling of the wire is e'ected; that is to say, two wires simultaneously coiled for the inner layer and two wires simultaneously coiled for the outer layer. This is to add strength to the complete product. ln carrying out the purpose'to be accomplished the cable is rotated about its longitudinal center in place of the dies and wire feeding mechanism being rotated about the cable.

Referring now to the drawings, wherein is shown one form of machine madeain accordance with the present invention, sai machine consists of a frame 10 of any suitable construction, and the main portions of the machine, speaking in a general sense, are an upper reel 11, which may be termed y' reel,a lower reel 12, which may be termed the receiving rolls referred to generally as the feed mechanism 13, and a series of die members referred to generally as the die mechanism 14. The upper reel 11 is composed of the usual reel member mounted to revolve within suitable bearings 15 on arms 15a of a frame or cage 16.' The frame is of U-shaped formation with a lower hub 17 mounted to revolve-in a suitable bearing 18, and attached to this hub is a gear 19, meshing with a gear 20, which latter gear is revolved by e bevel gear 21, with which meshes a beve gear 22, ona main drive shaft 23, and

reel, a series of feed drive` shaft is operated by means of the usual fast and loose pulleys 24. As the shaft 23 1s revolved, through 'the instrumentalities of the gears 22, 21, 20 and 19, the cage or frame V15 is revolved and this, as will` be .understood from the drawings, revolves the reel 11 about a center extending at right angles to the center of the trunnions of the reel member which are mounted within the bearings .15. l

The gears 21 and 2O are lsecured to a verl tical shaft 25 upon the lower end of which is a Agear 26 meshing with a gear 27. This latterv gear is secured to a shaft 28, which is connected to a hub or collar 29 on the lower portion of the frame 30, which frame carriesfthe lower'or receiving reel 12. The r 12'isprovided with trunnions 31 which aremounted to -revolve in bearings 32, in thearms 33 of the frame 30, and the upper ends of these arms revolve within a bearlng v34 secured to the frame 10.

vThrough the instrumentalities of the shaft 25, geary 26, and gear 27, the frame 30, which' carries the reel 12, is revolved about a center extending at right angles to the center of rotation of the trunnions' 31. There isthus established a synchronized drive between thereels 11 and reels 12 so that they are both simultaneously revolved about a center extending at right an les to their center off-rotation. It is' thus olhvious that asthe cable passes from the supply .reel onto the receiving' reel it isrevolved about its longitudinal center.

Means must be provided for. .pro erly driving the receiving reel 12 to revo ve it vabout thetrunnions 31 as a center of rotation, so that the cable may be drawn from the supply reel and wound onto the receiving reel by a' longitudinal movement through the machine.l The means which are 'illustrated to accomplish this driving consists of a worm screw 35 fastened tofa sleeve 36 which is mounted upon the shaft 28 and to this sleeve is connected or joined a grooved wheel 37. The jsleeve 36 and the grooved wheel 37I arel aiiixed to the shaft 28 with a tight t so that .under normal conditions they revolve simultaneously with saidshaft,

but in case ofthe .coil of cable uponthe re- 'ceiving reel becoming so lar e that each revelution of they receiving ree takes up more cable than can be covered by the wires being co1l of cable upon t wind the cable thereon applied thereto, .then a slippage'results between the'vshaft 28 andtrooved wheel 87 so can be wrapped about the same,

the cable through the machine with proper speed atl the start of the operation of the machine, it will *obviously increase the.

amount of cable. pulled through as the coil of cablev upon the receiving reel grows through the machine at times yin theoperation thereof, will be faster than'the wires thereby producing an inefficient product. Transmission of the power from the screw 35 tothe trunnions 31 is effected by a worm gear '38 mounted on astub shaft 39, (see Fig. 6), which stub vshaft lcarries a bevel gearl40, meshing with abevel gear 41, secured onto a vertical 'shaft 42, on the upperi end of which shaft isa bevel 43, meshin with a bevel 44, secured to the trunnions 1|.

It is desired that the operator have it within his power to increase the fr i tion or binding engagement on the groove wheel 37 to place a frictional retarding orce on said wheel and to withhold it against its tendency to rotate with the shaft 28 and by such retarding force create a slippage be tween the shaft and the wheel. struction'shown a band 45 is placed in the groove of the wheel 37 ,which band is connected to `a cable 46, secured around astub shaft or trunnion v47, whichv in turn is oined to an arm 48, and this army is connected to` a cable 49 Secured to adrum 50,'which drum' maybe turned through any suitable means bly the operator. As the drum50 is turned' t e cable 49 isl drawn` upward raising the arm'48, revolvingthe trunnion 47, winding up the cable 46, which places a. tension upon the strap 45 which creates a friction von the In the congrooved wheel 37. thereby exerting -a re- Y tarding forcel on this wheel and ,the .gear

35, so that slippage is brought about between the wheel 37, gear 35. and the shaft 28.

The foregoing describes the means of 'feeding the cable through the machine and turning it about its axis during such feeding movement. The armor laid on the cable comprises inner wires 51 and outerwires 52, which, as stated in the preamble of the specification, areffedinto the machine. in duplicate so as to make a double wrapping of both the inner and outer layers of wlres. i

The wires 51 are fed into rolls 53, while the wires 52 are fedv in by feed rolls 54 and 55. These latter feed rolls also act as die -members to attenone side ofthe wire prior to its application onto the cable. o The wires are forced through a guiding block 56 and into engagement with the grooved surfaces of 'rotatable die members 57, of which in the construction shown there are three. Each die member is formed with'an up er grooved surface 58 and a lower groove surface 59, the former position by feed 1,aso,ooe l effecting a turning of the inner wires and the latter a turning pf the outer wires. The cable 60, as shown, passes centrally of the dies 57 that is the outer periphery of each die is spaced apart a distance from the peripherybf the cable, the dies being grouped or arranged centrally about the cable.

As the'wire isforced into engagement with the grooved surface of the dies, it is bent into spiral formation by moving from one die onto the other, and by revolvmg the cable as it passes downward, the wires are wrapped or coiled about it; the inner Awires being ir'st laid vand the outer wires l next laid, with said outer wires breaking joints withthe turns orwraps of the inner wire. This feed mechanism and die mechanism is now known in the art, and is not claimed as a portion of the present Invention.

As showing a means for driving the feed rolls, I provide a gear 61 which isaiiixed to the shaft 25. This gear meshes with a gear 62 fixed on a stub shaft 63. Mounted on'said stub shaft is a pinion 64 meshing with a gear 65 on a stub shaft 66. On this latter shaft is mounted a gear 67 meshing with a gear 68 which meshes with a gear 69. The gear 69 is mounted co-axially with a gear 70 which meshes with a gear 70a c011- nected to a shaft 71, on which the feed roll 54 is mounted. The gear 67 also meshes with a gear 72 which is connected to a shaft 73, on which the feed roll 55 is mounted. The gear 67 also meshes with a gear 74 which meshes with a gear 75. This gear 75 meshes with a gear 76 secured to a shaft 77, upon which is mounted the feed roll 53. This method of driving will be understood from Figs. 8 and 9, and as shown in Fig. 8, there is both an upper and lower set 'of gears for driving the shafts 71, 73, and 77. This, however, is merely to increase the driving power of the gearing. There are also feed rolls complementary to the rolls 53, 54, and 55 mounted on the shafts 66, 66, and 66, respectively. No positive means are provided.l for rotating the die members 57, these being rotated by the forcing of the wire into engagement therewith. The operation is thought to be clear from the foregoing, but brieily is as follows: The

cable is coiled upon the supply reel. One end is pulled down and aliixed to the receiving reel. The machine is started and the reels are revolved about their respective trunnions as centers, causing the cable to pass from the supply reel onto the receiving reel, which gives the cable the longitudinal movement through the machine; and at the same time the supply reel and receiving reel are revolved simultaneously at right angles to their center of revolution, so as to give the cable a turning movement about its longitudinal center as it is fed through coperating with the produced between said mechanism and reel of the machine progresses, fricinsuring a proper and uniform feed of the v cable through the machine at', all periods of the operation.

We claim: v

1. In a cable armoring machine, the combination of two frames arranged to revolve about a common axis, a shaft on which` each frame is mounted, means connectedl with each shaft for lrevolving the frames in unison, a cable supply reel mounted in one frame and a cable receiving reel mounted in the other, each reel being arranged to revolve in its frame about an axis'at right angles to the frame axes, whereby the cable is revolved as .it passes from one reel tothe other, means for revolving the receiving reel about its axis at variable speeds, and means to the cable at a fixed speed relative to the revolving speed of the cable, the engagement ofthe armor with the cable serving to' control the feeding movement of the cableto a fixed speed relative to its revolving speed, substantially as described.

2. In a cable armoring machine, the combination of two rotatable reels, one yfor supplying and the other for receiving cable, means for turning the said reels about an axis perpendicular to their axes of rotation, whereby the cable is revolved as it is fed, and means connected with the reel turning means for armoring the cable, the said means armor to control the feedingy movement of the cable to a fixed speed relative to its speed of rotation, substantially as described.

3. In a cable armoring machine, a receiving reel, a frame within which the reel is rotatably held, a rotatable shaft secured to the frame, and means for causing the reel to be rotated within the frame at variable speeds,` comprising a `transmission shaft carried by the yreel frame, bevel gears connecting one end of the transmission shaft withl the reel, a worm and gear, the former frictionally held, connecting the other end of the transmission shaft with the frame shaft, and pawl mechanism for applying friction to the frictionally held worm t0 retard its movement as desired, whereby the receiving reel may be revolved at variable speeds, substantially as described.

iis

4; In a cable armoring machine, the combination of cable supply and receiving reels, mountings for the reels, means for rotating said mountings at equal speeds to impart a rotating'movement to the cable passing between them, means for imparting a winding tension to the receiving reel to take up the completed productA as it is delivered, means for feeding an armor onto the cable in helical formation, and power transmission for 10 operating the armor feeding means at a speed commensurate with the rotation of the cable, substantially as described.

GEORGE E. MRFIELD. FRANK H. NULLMEYER. Witnesses:

GEO. L. MIEDING, M. E. LANenoWNE.

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