US358663A - Wike eopes - Google Patents

Description

(No Model.) 5 SheetsSheet l.

W. HEWITT.

v MACHINE FOR MAKING WIRE ROPES. "No. 358,663. Patented Mar. 1, 1887.

I I INVENTOR WITNESSES JZ/ I M Ac l g (No Model.)

. W. HEWITT.

MACHINE FOR MAKING WIRE HOBBS.

" gmmzbg r 5 Sheets-Sheet 3.

(No Model.)

W. HEWITT.

MACHINE FOR MAKING WIRE ROPES.

No. 858,663. Patented Mar, 1, 1887.

lhw in w INVE cw WITNESSES;

EOR 64 (No Model.)

W. HEWITT: MACHINE FOR MAKING WIRE DROPES.

5 Sheet-Sheet 4 Patent-ed Mar. 1,1887

'WITNESSES:

W if? 5 INVENTOR (No Model.) 5 SheetsSheet '5;

W. HEWITT.

MACHINE- POR MAKING WIRE ROPES. No. 358,663.

WITN ESSES: NVENTOR UNITED STATES PATENT OFFICE.-

WILLIAM HEWITT, or TREXTON, NEW JERSEY, ASSIGXOR To THE TREN- rron IRON COMPANY, or SAME PLACE.

MACHINE FOR MAKING Wl-RE ROPE.

SPECIFICATION forming part of Letters Patent No. 358,663, dated March 1, 1887.

Application filed July 20, I855.

To all whom, it may concern: I

Be it known that I, WILLIAM HEWITT, a citizen of the United States, residing in Trenton, in the State of New Jersey, haveiuvented certain Improvements in Machines for Making Wire Rope, ofiwhich the following is a specification.

My invention relates to a class of devices employed for making continuous ropes or cables of any desired length,-a machine embodying my invention being capable, in a sin gle continuous operation, t} laying ortwisting a number of wires around a strand-core to form a strand, and of laying or twisting a numher of strands similarly and as above formed 7 around a main core to form a completed rope or cable. The machine is, moreover, equally applicable for the manufacture of continuous ropes or cables from other material than wires.

The principal object of my invention is the construction of a simple, inexpensive, and

automatically operating machine in which wire rope or cable can be made from strands laid or twisted about a. main core and composed of individual strand-wires laid or twisted about strand-cores without either the strand improvements is represented in the accompanying drawings, and described in this specifr cation, the particular sul'iject-matter claimed as'novel being hereinafterdefinitclyspecified. In the accompanying drawings, Figure 1 represents in elevation, partially, however, sectional, a good form of apparatus embodying my improvements, the section being supposed in the plane of the line at a: of 5, and

' sight being taken in the direction of themrows "on said line. Fig. 2 isa central longiing removed. Fig. 7 isan elevational view of Serial X0. 172,030. X0 model.)

meutary elevational detail through the main step, the driving and carrying spiders, and the driving-rack, illustrating also the modeof mounting one of the strand-formers offthe' lower set with respect to the arm of the car: rying-spider which supports it. Fig. 3 is a centrali vertical sectional elevation through the main step. Fig. 4 is a top plan view of the same. Fig. 5 is a top plan view of the machine, the lower strand-formers Nos. 2 and 3 being indicated merely by dotted lines, and the lower strand-former No. 1 being represented in section in-a horizontal plane taken through the lower portion of the arms of its tripodframe. and all of its flier-frames being removed. Fig. 6 is a plan ofthe carryingspider and driving-spider, section being supposed through the vertical shafts P, and the entire machine above the carrying-spider be;

one of the independent strand core bobbins, showing also the mode of application of the strand-former which operates in connection therewith. Fig. 8 isa central vertical sectional elevation of the rope-laying head, and Fig. 9 a top plan thereof. Fig. 10 is a side, and Fig. 11 a front, elevation of one of the flier-framesaud strand-wire bobbins.

Similar letters of reference indicate corresponding parts. 7 I

In the drawings, A represents a main step or hub, which is fixedly erected fromla bedplate orupon the ground. Upon this .main step is monntedand about it as a fixed pivot turns what I term a .driviug spider,'?- -1B the same being a radially-armed or whejel' -like' contrivance,which is provided with'a fi edlyattached annular driving beveled eel, b, which is stepped upon and has itsbearing with respect to said main step A. A beveled pinion, I), is engaged with the drivingfl beveled wheel I), and mounted upon a shaft, b,-

the rotation of which is, through thebevelgear I) b, imparted to the driving-spider.

O is an annular toothed rack, conveniently supported upon bracketsc, so as to befixed with respect to the earth or the bed-plate, and which encircles the mainsfep, being eccentric tudinal vertical and partially sectional fragthereto, butconcentric with respect to the main shaft E.

D is what I term the carrying'spider. being a multi-armed spider of substantially the characterof the driving spider B. From it is erected and with it turns the main shaft E, which is tubular. The carryingspider is mounted by means of a pivot-pin, (1, upon the main step A; being, however, eccentric with respect to the vertical azgis thereof, so thatwhile both the carrying-spider and drivingspider revolve with respect to said main step, they yet revolve about different pivotal axes.

a is a passage through the main step, which communicates with the hollow interior of the main shaft. Through this passage the main core c is led to within the hollow interior of the main shaft.

d" is a circumferential rim carried by the arms of the carrying-spider, and which rests upon a series of'circutnferentially-disposed carrying-rolls'H, mounted upon fixed pillowblocks a, erected from the earth or the bedplate. The carrying-spider therefore rests upon and revolves with respect to both the main step and the carrying-rolls, and, inasmuch asthe entire weight of the various strandformers and strand-core bobbins is superimposed upon said carrying-spider, it will be obvious that the arrangement is an advantageous one, the weight of said several members mentioned being borne upon solid bearings and taken off the driving-spider.

The carrying-spider and the driving-spider are preferably each provided with the same number of arms. In the drawings I have represented them as each having six arms. Interposed between neighboring arms of the said respective spiders is a series of connectinglinks, I, which are respectively provided with fined depending link wrist-pins i, which are entered within tubular bearings formed in the arms of the driving-spider, and with fixed upwardly'extending link-shafts or spindles i, which pass completely through tubular bearings formed in the arms ofthe carrying-spider, and at a point above said arms are fixedly provided with the yokes J and housings X, which constitute. respectively, the carrieis of the strand cone-bobbins K and K, whereof hereinafter.

When motion is, through the beveled'gearing,impartcd to the driving-spider to occasion its revolution with respect to its step. the connection of said driving-spider with the carrying-spider through the connectinglinks occasions a revolution ofsaid carrying-spider with respect to its pivot and its carrying-rollsin the same direction and at the same speed as the revolution of the driving-spider. The drivingspider is therefore the motive instrumentality of the carrying-spider.

In the mounting of the machine, all of the c )nnecting-linkspresent or trend in the same direction-that is to say, vertical planes bisectiug their respective longitudinal axes are parallel. 1 y virtue of the eccentric disposithe said spiders.

of the bobbins therefore insures against torsion tion of the said driving and carrying spiders the said parallelism of the links is, moreover, preserved throughout the revolution of both spiders.

Inasmuch, moreover, again, as the carriers J and N of the strand-core bobbins are fixedly connected with the upper extremities of the link-shafts i", which latter, as stated, are fixedly connected with or a part of the connecting-links, it is obvious that the said carriers will all trend in a common direction and ,all maintain a given parallel disposition throughout the revolution of the driving and carrying spiders. As, therefore, the strand-core hobbins which are carried by said carriers or yokes must of necessity maintain the position of their respective yokes, it is obvious that the several strand-core bobbins will all trend in the same direction and maintain their parallel disposition throughout the said revolution of This maintained disposition in the strand-cores 7:, which are wound upon said bobbins.

It will now be understood in what manner, first, the driving-spider is rotated; second, in whatmanner the carrying spider and the main shaft are together rotated, and, third, in what manner the strand-core bobbins, which are disposed upon and carried by the arms of the carrying-spider, are likewise rotated.

Fixedly connected with and rotated by the main shaft are aseriesof, inthe form of machine represented, triarmed horizontally-disposed spiders, which I, formnvenience 0f nomenclature, term the minor spiders,and of which I designate the lowermost L. the middle D, and the upper L, the said letters, to avoid unnecessary enumeration, being respectively, applied to the several arms which, in fact, compose the said respective spiders. The three arms composing the middle minor spidcr, I), are disposedin line above alternate armsot' the six-armed carrying-spider, and

between the said three alternate arms of the carrying-spider and the three arms of the middle spider, I)", are supported, both for revolution about the main shaft and for rotation about their own axes, three strand-formers, Nos. 1, 2, and 3, which contain not only the strand-core bobbins K, bnta series of strand-wire bobbins, whereof hereinafter.

The three arms of the upper minor spider L, and the three arms of the lower minor spider, L ,aredisposcd in line above each other, and are, moreover, so disposed that each of the said three arms of each of the said minor spiders, L and L, are staggered with respect to or interposed,as regards radial disposition, between the three arms of the middle minor spider, D. Between the arms of the upper and lower minor spiders are supported and sustained, both for revolution about the main shaft and for rotation about their own axes, three additional strand-formers, X05. 4:, 5, and 6, which contain a series of strand-wire bobbinsthe strand-core bobi said last-mentioned strand-formers, not being Y six strand-formers and the pri ao provided with a greater or a less number of ter,in the manner -ers with respect provided with'twelve strand-wirebobbins, "so

'machine under formers, which,

'.as Nos. 1, 2, and 3, and three upper strandformers, which I similarly designate Nos. 4, .5, and 6, and that by reason 0 Irying spider, in efl'ect,

'5, and 6.

spiders shown have each twelve arms to support twelve strand-wire bobbins. Each flierspider F supports whatI term a tripodframe, G, which sustains a hollow vertical bins 1?, which operate in connection with placed within the circle of their strand-wire bobbins, but being independently supported below the said strandformers upon the three strand-former shaft, g, the upper extremity of armsof the carrying-spider, which, in the which is journal mounting of the machine,arc in line below the and provided arms of thelower' minor spider,L,and which alternate with the other three arms of said carrylug-spider, which, as already explained, sup port the three first mentioned strand-formers.

It is, of course, .to be understood that this l description is directed to the specific apparatus represented in the drawings, which, as stated, happens to be an apparatus employing capable of producing six strands only, but that it is perfectly pos sible to organize a machine operating upon nciple invented by-me which shall be strand formers than six.

It will now be apparent that there are in'the discussion three lower strandfor convenience, I designate ed in an arm of a minor spider. with astrand-laying head, 9". The three strand-formers of the upper set have each a lower bearing, l, in the arms of the lower minor spider, L, which beari ng is represented in Fig. 7, the flier'spiders turning frc'ely upon the axially-apertnred hub of a horizontal beveled rack, M, secured to the housing N l of the three independent strand-core bobbins l Kflwhich operate in conjunction with the upper set of strand-formers, and which, as al-' ready stated, are respectively intermediate between the three strand-formers of the lower set. The strand -cores k, which are carried l upon the independent strand-core bobbins K",- are le'dup through the axial apertures, of the l'beveled racks M, and thence up a d through .t-be strand-former shal'tsg to the strand-laying heads 9 which each contain a die similar to that carried by-the rope-laying head.

Theflier spiders of. the three strand-formf the fact that l ers constituting the lower set turn freely upon all of the'arms of the several minor spiders the link shafts i and rest upon the horizontal are of thesamelength and the arms of the carbeveled racks llPiwlrich are tixedly connected of the same length, with said link -shafts, all .as represented in each of the said strand-formers (which, as al- Fig. 2-. v ready explained,-are supported bet-ween the l "he tripod frame of each 'strandformer said spiders) is, as will he nnderstgod by a housing is conveniently eqnlpped-witha cir-. reference to Figi'5, at' the same radial disl cularring, g, which sustains-the.npperbeartance from the mainshaft, although with reings of the radially-disposed series of fliergard to circumferential disposition the said 1 frames, carriers, or revolnhle housings f, for three lower strand-formers, 1, 2, and 3, altercarrying the strand-wire bobbins O, the'lower mate with the three upper strand-formers, 4, bearings'of which are formed in the respective arms of the fliersplders or in any ring or Inasmuch, as the, three minor spiders are kindredcontrivance connected therewith or fixedly connectedwitb the main shaft and the carried tbereby. I main shaft fixedly connected with the carry- Each of the flier-frames of the s trand-wlre ingespider, the revolution imparted to the latbobbins is preferably inclined inwardly from hereinbelbre explained,will l the vertical, as represented in thedrawings, occasion the revolution of all the strand-forml so that the various strand-wires k led from to the vertical axis of the l the strand-wire bohbin'sO will pass in adirect main shaft, the said revolution being that necline throughthe upper hollow journals, of essarv to bring to pass the laying or twisting the flier-frames up to the strand-laying heads of thestrands formed, as hereinafter explained, gflwith which the strand-formers are,a*s stated, in the respective strand-formers about the respectively provided.

In order to effectuate of the strand-wires about the strand-cores,

the laying or twisting main core, which is carried up through the main shaft.

As all of the strand-formers are of thesame construction, a description of one will suffice for all. 7 Y 4 The strand-formexsrep I accomplish by providing a series of vertical resented are each shafts, P, preferably corresponding in number with the number of strand-formers, and journaled in boxings '1), respectively formed in the about astrand-core, k, to form a strand, minor and carrying spiders, shafts, for

Each strand-former is composed,essentially, the accommodation of the eccentricmoven ient of a rotatable housing or frame-work for susthereof, pass freely through c rcular openings taining the strand-wire bobbins. I prefer to 1), formed in the dr1v1ng-sp1der,and archeform these housings in the following manner; low said drwlng-splder equipped with driving F are "flier-spiders, as I have termed l pinio11sp",wluch engage w th-the f xed annuthem, provided with a number of arms ccrrei lar toothed rack C. it is obvious spending with the nu mher of strand'wire bobbins employed. In the drawings the fileras to be adapted to lay twelve strand-wires, k,

l pinions p is of course essential to revolve the strand formers about their respective axes, and this that as the I carrying-spider isjrevolved the saiddriving- 7 will be rotated by their rev olutionary tore all of the shafts engagement with the said fixed rack, which latter, as stat cd ,'is concentric with the axis of rotation of the carrying-spider, and thattherewill be rotated.

Three of the shafts have vertical extension to the upper minor spider, and three of them but to the middle minor spider. The three longer shafts are employed to occasion the revolution about their own axes of the three upper strand-formers. The three shorter shafts are employed for a similar purpose in connection with the three lower strand-fortners. Each vertical shaft lis at its upper extremjty provided with a driving toothed wheel, p, which, through the intervention of idler toothed wheels p p journaled upon the minor spiders, occasions the rotation of a driven toothed wheehp, conveniently mounted upon the strand-former shaft 9 of the particular strand-former in connection with which said train of toothed wheels operates, and thereby occasions the revolution of the strand-former about its own axis.

It. will now be understood in what manner the strand-formers are revolved about the main shaft, and also in such revolution revolved about their own axes.

Ihave heretofore mentioned thcimportance of avoiding torsion in the straml-wires. In order to such avoidance it is essential that the strand-wire bobbins, which are grouped radially and revoluble about or with respect to thestrand-core bobbins,should be so controlled that they shall always throughout their revolution about-the axis of thestrand-formers which contain them bear a predetermined directional relationship to said strand-core bobbins, and consequently also to the points of the compass. This result I accomplish by prolonging, preferably, the lower .lournal, f, of each flierframef, below its bearing in the arm of the flier-spider which carries it, and providing the prolonged extremity with a worm-wheel,

5 j, which is adapted to be engaged with a worm-threarLj", upon the outer extremity of a flier-shaft, f", journaled in radial disposition with respect to the housingin thestrandformer, the other extremity of which shaft is provided with a beveled pinion, f", which is engaged with the teeth of the fixed beveled racks M or 31 as the case may be.

The relationship between the worm-wheel on the flier-frame, the worm-thread on the flier-shaft, the pinion on said shaft, and the fixed beveled rack is intentionally such, and it is a matter simply of mathematical calculation aml proper proportioning of parts that each flier-frame, and consequently the strandwire bobbin with which said frame is provided, maintains the same directional relationship withrespect to the strand-core bobbin operating in connection with the strand-former of which the frame underconsideration is a member,and consequently with respect to the points of the compass throughout its entire revolution about the axis of said strand-former, whereby each particular strand-wire is presented to its strand-laying head without torsion. Thus, to describe, in other words, the relation between the pinion on the flier-shaft and the fixed beveled rack which drives it is inversely the same as the relation between the worm-thread on said shaft and the worm-wheel on the flier, the rack, for instance, being to the pinion as twelve is to one, and the worm-wheel being to the worm-thread as twelve is to one.

It is of course obvious that it is inconsequential in what position the flier-frames and their contained bobbins are originally set, as they must necessarily maintain their individual directional relationship to the points of the compass throughout theirindividualrevolotions about the axis of the strand-former of which they are members. Thus, therefore, torsion of the strand wires is completely avoided whether the said strand-wire bobbins of given strand-formers be all, as represented in Fig. 5, originally set with their shafts parallel, or whether, as represented in Fig. 1, the several strand-wire bobbins of the same strand-former are originally set with their shafts at varying angles.

The flier-frames f are all of the same construction, and are especially illustrated in Figs. 10 and 11. The strandwire bobbins O, which these frames contain, are mounted upon shafts 0", which are removable and conveniently held in place by a spring-actuated bolt or pin, 0", as shown in Fig. 11.

The strand-wires and strand-cores are put under tension by means of a tightening strap or cord, 0", applied to boththe strand-core bobbins and the strand'wire bobbins,by being passed around asuitablc tension disk or drum, 0, which is a part of or connected with said bobbins, and which cord is adapted to be tightened by means of tighteningthumb-nuts 0 or kindred co'ntrivances connected therewith and applied to the housings or frames of the several bobbins, as especiallyillustrated in Figs. '7, 10, and 11. Instead, however, of the foregoing tension device, any other device adapted to control the too-ready unwinding of the bobbinsand applied to said bobbins may be employed.

As already mentioned, the three strandformers constituting the lower set are pro vided with strand core bobbins which are housed within the frame-work, frame, or housing of said strand-formers, as a reference to Figs. 1 and 2 will make clear, while the three strand-formers which constitute the upper set operate in conjunction with independent strand-core bobbins which are supported direet upon the carrying'spider and axially below the said strand-formers. All of the said strand-core bobbins are, however, connected with the link-shafts of the connecting-linksin the manner already fully explained. The object of this arrangement. is to avoid lifting the heavily-laden strand-core bobbins higher than is actually necessary, and to translate the weight of such strand-core bobbins directly t esas'es s the entire machine-within a smaller compass,

minute can beobtaiued.

R is-what- I'term a head-boxing, convenveuientl-y composed, as represented in Fig. S.

of a top plate, t, a bottom plate, -t, a yokeplate, t", all preferably of metal, and of a rectangular framefl, erected upon the yoke-plate and supporting the :top plate. The bottom plate is surmounted upon and connected with the upper extremity of the tubular main shaft E, and it is provided with a series of converging apertures, t, through which the strands it" pass tov a central aperture, t, in the top plate. Thehead-boxing as above constructed is,,as

.will'be' apparent from a-refercnce to Fig. 8, a

box-like contrivance, although. as is obvious to any mechanic, the form'iuwhich-it is made may vary. The head-boxing carries a sectional or other die, 1-, which is conveniently contained in a die-yoke, 1, supported upon verticalbolts r, which are adjustable within transverse slots i formed in the head-boxing, and which also pass through slots formed in the die-yoke. By means of this arrangement the die itself can be adjusted in any direction with great nicety.

Traction is, of course, exerted upon the main core and the various strands 'to draw them,

when laid together as. a completed cable,

through said die, the rapidityof traction measuraoly determining the amount of twist both in the rope and inthe strandsnt The strand laying heads are conveniently made of substanti'ally'the same construction as that described with reference to the rope-laying head.

Having now described a good form of apparatus embodying my invention, and suffi- 'ciently, alsc, the operation of the same, it is proper for me to add that-the strand formers are conveniently geared in such manner asto make about four revolutions upon their own axes to one revolution about the main shaft. The strand-wire bobbins revolve around or with respect "to the strand-core bobbins at a rate of speed which may be adj ustd independently of the speed of revolution of the strandcore bobbins about the main shaft.

As will be perceived,the machine is adapted to make any of the usual kinds of rope.

The strand cores, which are made outside of the machine and wound upon the strand-core bobbins, which are then applied to the machine, may be either single wires or cords, about which six wires may be laid to form a seven-wire-strand rope; or the strand-cores may be of three wires previously twisted together,.about which nine wires may be laid to form a t\\'elve-, wire rope, or the strand-cores may be of seven wires previously twisted tosot-hata greater number of revolutions per 'six'scven-wire strands may be laid to form, a

strand-rope, as it might be called, six such strand-ropes being then laid together to form. a larger rope.

It is preferable to drive the st rand-formers from above rather than from below, the mode Other means, however, of imparting rotation to said strand-formers may, if desired, be resorted to.

It is apparent. that the principleofthelink- -represei ited in the drawings beinga good one.

connection illustrated and described'herein as applied to *the strand-core bobbins, for

the maintenance of theirgiven directional relationship throughout their revolution, may, by a very simple modification, be applied to the flier-frames of the strand-wire bobbins of each of the st-raml-formers, so that the said strand-wire bobbins may be each preserved in given directional relationship throughout its revolution about its strand-former by a linka-n'drspider conncct-ion rather than by the connection of gearing represented and described.

Itis, moreover, manifest that many mechanical contrivances other than the compound spider B D may be resorted to for securing the revolution of themachine as an entirety.

Having thus described my invention, I claimv l. The combination of a central and revoluble main shaft, means for operating said main shaft, a'lowcr series of strandforiners radially disposed at predetermined distances apart around said shaft and supported from said shaft near its base, aud each composed of a revoluble open-centered frame containing a series of radially-disposed flier-frames for carrying strand-wire, bobbins, a first series of yokes or carriers for a series of strand-core bobbins, each disposed within the open centor ofthe revo'luble frame of a given former of said aforesaid lower series of strand-formers, and each directly surrounded or encom-' passed by the flier-frames of said strandformer of said lower series, an upper series of strand-formers radially disposed at predetermined distances apart around said shaft, supported therefrom upon a level higher than that of the lower series, alternating with regard to circumferential distribution with the strand-formers of said lower series, and each composed of a revoluble frame containing a series of radially-disposed flier'frames for carrying strand-wire bobbins, and a second se ries of singleor separate'and independent yokes or carriers for strand-core bobbins c0r-' responding in number with thestrand-formers. of'the said upper series in line below said formers, but not centrally disposed therein, and upon the level of the strand-core bobbincarriers of the first series of carriers, which are disposed withinthe centers of and operate in'conjunction with the lower series of strand-formers, substantially as and for the purpose set forth.

2. The combination, with a main shaft, of.

two series of strand-formers supported from- 6, assess said shaft, grouped around iton difiercnt'h-vcls, and successively alternating or staggered,

a series of separate and independent carriers being substantially thatfor stra nd-core bobbins,corresponding in numher and in radial disposition with the several strand-forum's, together composing the said two series, but all placed upon a common level, of the lower of the two series of strand-formers. and means. sub stantially such as set forth, for preserving in said carriers for said strand-core bobbins a given directional relationship throughout their revolution, substantially as and for the purposes set forth.

3. The combination of a revoluble main shaft provi ed with a rope laying head and -..t-u a series of fixed-armed spiders for supporting strand-formers, a step or base-pivot upon which said shaft is erected and rotates,a driving-spider" operating eccentrically with respect to said shaft and the fixed spiders, means for rotating-said driving-spider, connectinglinks between the driving-spider and one of the spiders carried by the shaft, aseriesof strand-formers connected with and carried'by the fixed spiders. and a series of carriers for strand-core bobbins, connected with the connecting-links aforesaida substantially as and for the purposes setforth.

4. The combination, with a revoluble vertical main shaft, of abasal or carrying spider or frame formed with a peripheral rini,a series of minor spiders upon said shaft at intervals above said basal spider,a series of strand-fortners supported by tlurespective spiders substantially-in the manner set forth, a series of carriers for strand core bobbins the weight of all of which is superimposed upon the basal spider, and means for supporting the peripheral rim of said basal spider and permitting the revolution thereof, substantially as set forth.

.3. The combination of a rt-volnble main shaft having a ro 'ie-laying head, a-carryingspider secured to and concentric with said main shaft and revolving with it about the same axis of revolution. a series of minor spiders connected with said main shaft, a, series of strand'ftmuers snpportedby said spiders and grouped about and revoluble with the maitfgo shaft substantially in the manner set forth, a driving-spider the axis of the revolution of which is eccentric to that of the main shaft, means for revolving said driving-spider, connecting-links provided with link wrist-pins boxed in the driving-spider and with linkshafts passing through the carrying-spider, and carriers for strand-core bobbins fixedly connected with said link-shafts and superimposed upon said carrying-spider, substan- 6o tially as set forth.

In testimony whereof I have hereunto signed my name this 10th day of July, A. l').

\V M. HE\VITT.

In presence of- J. BoxsiLL TAYLOR, Jonx JoLLnv, Jr.

Correction" in Letters Patm No. 358,663.

It is hereby certified that in Letters Patent No. 358,663, granted March 1, 1887,.np0n the application of William Hewitt, of Trenton, New Jersey, for an improxeihent in Machines for Making Wire Rope, an error appears in the printed specification requiringcorrectiou, as f0l1ows: In line 23, p,age 2, the reference letter it should read h and that the Letters Patent sheuld be read with this correction therein that the same may conforui to the record cf the ease in the Patent Oflice.

sighed, counwrsi'gned, and sealed this 8th day of March, A. D. 188?.

[SEALII D. L. HAYVKINS, 7 Acting Secretary of the Inter-for. Cauutersigned:

R. B. VANCE,

Acting Commissioner of Patents.

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