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Патент USA US2404368

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July 23, 1946.
_ l2,404,368
Filed July 28', 1944
' 3 Sheets-Sheet l
July 23,-1946.
2,404,368 1
G. H. ÈscH
Filed July 28, 1944
' 5 Sheets-Sheet 2>
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July 23, 1946.
G. H.’ EscH
’ 2,404,368
`Filed July 28 . 1944 l
s sheetsësheet 3
Patented July 23,> 1946
Gladden H.'Esch, DearbormMich.
v Application July-,2s,rr944, serial. Nolsfimâ'z
12 claims.
(C1. 2424-3158)]
(Granted under the act of .March 3v, A>1883, asv '
_ _amenaeanpni so,l 192s; 31010. G. 157,)
valve tov directl the-„fluid from the vpump to the
The 'invention described herein may be manu
fopposite end‘of; the cylinder.A -
,-.factured and yused by or for the Government for
governmental purposes,- without the paymentto
me of any royalty thereon.
' These and other objects of the invention will
be made `more apparent as this description pro
‘ ‘ f
`This invention relates generally to Winches, >andf 15 ceeds, particularly when considered in connection
With-the accompanying drawings in which: v
has particular reference to a hydraulic level-wind
ing attachment for a Winch.
Figure lis a front elevation of a» Winch con
structedin accordance> with¿_ the present inven
It is an object of the present invention to pro
vide a device for level Winding a cable upon ya
drum in even layers.
'an end elevation thereof, partly
A further object .of the invention is to
Figure ‘3 is a'plan view of aportion of the con
a device for Ylevel Winding a cable upon a drum '
struction shown in Figure 1 ;_-
which is actuated hydraulically in timedrelation
» ¿Figure 4 is a crossesectiontakenon the _plan
« to the rotation of the drum andivvhich` includes
v adjustable means for adapting the 'device-to ac--Vï
`indicatedby the ¿line 4-_4 of Figure 2;
-Figure _5;is a cross-section taken on ythe Vplane
commoclate cables of various diameters. `_
Another object of 4the invention is to ,provide
indica-ted by the_»_line,575 yof Figure l2; j_'
’ Í
Figure 6 is a cross-section taken on the plane
a compact level winding’attachmentfor Winches
indicated by the linegGfS of Figure 4;, and ' _ _
Whichis capable of accommodating a cable ex
Figure .7 _isy a diagrammaticalyvievvA of the
tending from the drumradially at any angle and 20
A hydraulic system. ^
which maintains the cable under .tension during
the winding thereof upon the drum.
Referring now more particularly to the draw
ings, it -vvill'be :noted that in Figures 1- and 2 I-have
f ,.
Still another object of the present invention
illustrateda conventional type Winch I0, compris
Y is to provide a reciprocable cable fairlead for level _ Il
ingl a drum` II having end‘ñanges- I2 and .I3 and
Winding a cable upon a drum which is automati-'
cally reversed at opposite ends of the drum and,
in addition, which may be- reversed at any posi
tion when the direction of rotation of the drum
itself is reversed.`
>adapted tol receive a` cable` I4. ' »The drum >I.I is
_ mounted upon arshaft _ I5 having the opposite
>endslthereof journalled` in bearings carried by the
end bracket I6» and 'the' housing ,I‘I_,. which are
Various mechanical devices have been proposed "
in the past for level Winding cables upon drums,
but these have not been entirely satisfactory due
to the accumulation of errors therein and the
necessary complexity of the design.
In addition, ,_
the bulky size of these devices has made their usev
on portable Winches prohibitive. .These disad
vantages are eliminated in the present device by
providing a simple hydraulically actuated attach
mounted upon the base IB. -Keyed-to the shaft
I5 within the housing I1 is a Worm wheel I9mesh
ing with avvorm 20, the latter being carriedy by
kshaft 2|»y which is- driven by> any suitable means
(not shown);y suchas from a power »take-01T vshaft
of avehicle motor.
A pair ¿of brackets 22 are pivotally mounted
upon opposite ends of the shaft I5 and are each
provided with» a cylindrical bore 23 adapted to
receive _a‘ sleeve 24 which, in turn, carries‘the
ment which accurately guides the cable upon the 40 cable guidingrneans to ‘be described hereinafter.
drum in timed relation to the rotation of the
Mounted upon the sleeve 24 are a pair of plates
drum. This is accomplished by means of a cable
fairlead mounted upon a cylinder Which, in turn,
is reciprocable relative to a iìxed piston. Recipro
cation of the cylinder is'elîected by means 0fy ai: 45
25 provided With‘aligned openings 26 engageable
with the'outer periphery of the sleeve. It will be
positive displacement hydraulic pump actuated
slidable axially thereof.~ »The radially outer end_s
by a cam surface upon one-flange of the drum
of the winch. The cylinder and cable fairlead
-are carried by a _frame pivotally mounted with
respect to the drum, thus permitting the frame y 50
to be turned so that the cable can be led _to the
drum from any radial direction. Reversal of the
cylinder and cable fairlead' is reffected byV pilot
valves positioned at opposite ends of the stroke
of the cylinder and operable through a‘four-Wayfy
noted that the plates 725g >are thus rotatably
mounted on the sleeve 2li-and, invaddition, are
of the plates .25. are detachablyv connectedto
gether by a plate >2='I.
. ,
The sleeve-.24 is 'provided 'with threeequally
spaced> longitudinally extending grooves 28, each
ofl which is» adapted to receive a radially inwardly
extending key 294 formed upon .the-inner yperiphery
of a split sleeve 30, journalled upon the sleeve 24. f
The sleeve 230 is formed in `three _sections to
facilitate assembly _andy is provided Aat one end
with a radially 'outwardly extending flange 3| and '
is threaded at the opposite end to receive a nut
32. A sheave 33 is rotatably mounted upon the
ner that the latter is reciprocated therewith. The y
sleeve 30 and yis Vretained thereon by means of
the flange 3| and the nut 32. It will now be ap
parent that the sleeve 30 is adapted to be re
ciprocated longitudinally upon _the sleeve 24 and
opposite ends'of the cylinder 5| are'closed byr
suitable heads 55 through which extend the pis
ton rods 43 and 44. A suitable packing 56 is pro
vided within >the heads 55 and Vis adapted to be
carries the sheave 33 'which is rotatable thereon.
In order to guide the cable i4 and'to maintain
-¿compressed by the packing nuts 51 to prevent
leakage between the cylinder and the Vpiston rods.
now be apparent that the cylinder 5| is engage
able with the cable guiding ymeans in such a man
a suitable tension thereon, I have provided a pairV ~10
Reciprocation of the cylinder 5| and the cable>
of sheaves 35 and 35 journalled upon shafts 3l,
guiding means carried thereby is effected by
Which in turn are mounted between .the opposite
, ; lmeans of a positive displacement pump 58, best -
bifurcated'rends 38 of a 4bracket*'39.;positionecly - v.shown in .Figures '2 and 5. The pump 58 com
between the plates 25. The opposite ends ci the
YVprises a cylinder 59 having'lits lower end bifurVshafts 31 extend through the äiiflurcated-end‘s 318 F15 fca'ted YAand embracing the crossbar Si) of the base
à' of the' bracket 39 and are receivedandguidedin
|8.. The >crossbar 60 is provided with arslot 67|,
Vtached to the bracket 39, between the sheaves Ie35
` slots 40 and 4| provided in the plates 25,
and the cylinder is fixed to the crossbar by means ~
` of a clamping bolt B2 extending through the bí
l and 36,~ is a leaf spring...42 having’its-'oppositev end
"fur'cations of the cylinder and the slot in the
l in engagementwith the inner surface of the end 20 crossbar. `Received within the upper portion of
i plate 27|.
Wí'fthfthis construction‘theîbracketlßa ; _ I fthe ycyhnd'er Q59 is a piston-'63 having a piston rod 'Y
’ carrying the sheaves §35 -andí«36, is resìlientlyïurged
ß toward fthe sheave 53 and vïifuiîn‘ßtio'nis îto maintain
' l; 'the cable |'4 under itension -wliile the Klatteris be
` @54 -slifda'bly connected lby means ’f of :a bolt-‘Sito a
,pair'of ‘arms 66, each having one end pivoted'at
BT to aY bracket 68 bolted tofthe*vertic'allyïextend
ing 'woundV upon `the lzîiruïrn >and lautoma’ticallyrre '25 ing flange U9 ofthe base |8. yThe armsl?iß are Dro~
‘ leases, the tension "when fthe cable lis bei-ng ire- .
movedffrom the drum. "l'f'lflîis ¿feature facilitates v
unwindin'g the -cable ltrom kthe drum, fparti'cularly
vided with slots _10 through which passes'b’olt'ïß‘ö,
permitting reciprocation Aof piston rod |54.V The
' opposite ends of the ya-rïrr-lsfiì-ß embrace and'pivotal-v
f »j when this is done by hand. Itwiu be noted ythat
ly support a cam ¿follower "|| which engages the
the slots '4”0 vand "4| are angularly Vdisposed >Äand vr30 outer periphery of rthe flange v|'2 of ‘the ldrum -|'-|.
` cooperate with the shafts 31 to permit vthi-eneces
sary movement .of 'the sheavesßB and 135 unde
3 the action of the spri»ng««'42..
As ïbest seen in Figure 7J2,
which fthe 'pivoted f
Flanges 1.2 are provided'on ’opposite sides »of the
cam follower "1| ~to maintain `the ‘follower in lat
eral Valignment with vlthe ñange '|2.
It will be noted from Figure 2 ’that the Vouter
„brackets 2Í2 areextended rearwardly yofthe»winch 35. periphery 'of the flange ‘l2 fis formed with a cam
l ‘to `guide .the cable fïthere‘en »from that direction,
4 ` the cable I4 extends fromthedrum `|‘| around `the
l -lower‘sidevof the îslieaïve ¿33, ïth'ence between the
sheavesr -35 Vand '33 and Ai’inaîily arounäïthe'u‘pper '
surface 'I3Y which comprises a pre-determined
. number of radially outwardly `extending "arcuate
lands 'T4 with ~depressions’ 15 between adjacent
` portion vof the sheave V35 'andV outwardly therefrom 40 lands.r 'The coil :spring 16 is mounted in compres
for connection to the object being ‘moved by the „ 'sion between the cross 'arm 6U -'and ‘arms 65 and
maintains the cam’follower 1| lin 'constant en
¿The novel arrangement lherein'above described ï
‘ 'maintains 4the ’cable «under p‘ïtensionv, ythus‘permit-Y
1 ting it -to 'be wound'even‘ly v-upo‘n‘the drum and, rvat ‘
the same time, the entire»cable'guidingdevice.can
gagement with the cam 13. V'With this construc
tion it will be seen that rotation ofthe> drum f||
and 'itsrflan'ge |2 effects a reciprocation of the
Ícam 'follower v'|| Y and vtl'irough the arms ‘65 a
t be swung around the Vaxis :ofthe drum | A| fan’dlthe
corresponding reciprocation of the piston 63 with-~
1 / `With particular reference ‘to Figure
suction stroke of the -piston and i's'forced from the e
"tension assembly supported î'by v"the plates ’25 'can y Vinthe cylinder 59. The number vofsvtrokes'rof the
piston per revolution of the ydrum 1| is depend'
fbe swung around-the sleeve v2'4 to adapt itself to
fpu‘l-l an object ‘from any Vx'iinecti'on radially of ‘the to ent upon the number of the lands "14 provided on
the vcam 'surface 13 of the drum ñange 4and the
parts are .proportioned -so that the pumpV will de
To Lpermit they above »described table guiding
>liver a pre-determined quantity of?ñuid for each
i means jto 'be reó'iprocated axially of 'the drum YIl
revolution of the'drum |`|. Fluid is admitted into
“to level wind 5the cable thereon, I have ‘provided
Vthe 'cylinder 59 through the Acheck valve 16" on the
the novel Vmeans hereinafter described.
`I43 Vand
1'4‘4 are `piston -rods mounted cohaxially with-in `r'the
î's’leeve "24 and having their inner VIad'îacent.ends
`secured to the piston 45. 'The outwardly extend-V
cylinder through the check valve -|'| on the down
ward'stroke of the piston, at which time the check
valve v‘I6’ automatically closes.
The outlet passage 18 of the cylinder is adapted
by means to -be 'more fully described hereinafter
to communicate with the passage >formed in one
or the other of the piston rods 43 and 44 and with
the yinterior of the cylinder V5| at the correspond
ye’xtendinlg'passage ‘48 thereinhaving one end com
municating withfa tube 49'by 'means of the {inter-Y 65 ‘ing yside ‘ofY the piston 45.V The construction is
Such that the quantity of fluid'forced into the :cyl
connecting-'elbow 50, and the ‘opposite fend -ex
inder`5'l from the ~.pump 58 during one revolution
Í vtending through the ’wall of’the ~piston rod fclose
of thefdrum | | is an amount suíiicien't to ‘move the
`proximity to the piston 45.` ‘The èhired piston 45
cylinder 5| axially ‘relative to the ñXed piston 45 a
fis positioned within'a-cylin'der 51 received 'within
äistancejequal to the width of the cable |4. r`Move@the tsleeve 24 ’and `reciprocab‘le relative to vthe
'ment "ofthe cylinder 5| ‘is continuous :du-ring ro
ysleeve and =`to ‘the piston V"45. YIn detail, the cylin
vxder î5| has a'f-body portion `52 provided with ra
tation of the fdrumr `||’ and moves the' cable `~guid
dially-¿outwardly extending annular flanges 53
ing means longitudinally at such a matethatfthe
nand 54 adapted to embrace 2the opposite ends fof
Icable |"41i's wound upon the-drum f|ï| 'lin-even Ela-vers.
fing Aends >'of `'the 'piston rods '43 and 44 extend
lvthr'oueh lapertures '46*in "the‘bra‘ckets '22 yand are
"secured thereto lby 'means foi the ‘locknuts 4’1.
§'Each piston rod is lprovided'with a longitudinally
vthe keys '29 extending within the sleeve 2.4.. 1t will 75
Adjustment fcan read-ilyLbe fmadeto-'en'able the _ ‘
., .
" axial movement of thezrcylinder 5| to exactly cor
respond to the vvidtlry of the cable I4 'and'also to
accommodate cables of various diametersi This
.is accomplished by moving the pump 58 laterally
.I and clamping the cylinder-59 in various positions
‘by means of clampingv bolt~62 in »the's'lot 6| in
crossbar `|59. This adjustment varies the effective
length of the lever arm 68 and changes thelength
of the stroke of the piston 63, thus varying the
A 82 and ñuid'now. ilows from the pump 58 through
the> valve and out' through the port' 84 of the lat
ter andthrough the tube .86 .to the interior „of
the right-'hand end of the *cylinder 5|. The in
terior of the left-hand end of the 'cylinder 5| vnow
communicates through the tube 85 and the valve
82 to the exhaust tube 88 and is returned to the
reservoir. 89. When the cylinder 5i reaches th'e
«fend of lits right-hand stroke, the corresponding
-pilot valve 191s engaged and actuated and re
`amount ¿of fluid transmitted to the' cylinder`5|
lieves the pressure to the right-hand end of
f during each revolution of the drum. '
When the cylinder 5|, and the cable guiding r the valve' 82 through th'e tube 94 and the exhaust
tubes 96 and 88. This'again reversesthe'valve
' >means carried thereby have traversed the length
82 and, in thismanner, reciprocation .of the cyl
' of the drum Il and the cable’ |4 has reached a
position adjacent either to flange I2 or I3 there-‘ ,15, inder 5| is effected.
In the‘` event the direction of rotation of the
'of, provision is vmade for reversing the direction
of reciprocation> ofY the cylinder 5I to permit the Y
v cable guiding lmeanstov traverse the drum in the
'Y drum is. reversed to' permit the cable tobe un
Wound from the drum after it has >been wound
th'ereon, or vice versa, there is provided a man
opposite direction and to thereby wind the cable
ually operated valve 91 connected by 'tubes 98 andv
This re
Y' I4- upon thefdrum >in another layer.
99 :to the tubes 93 and 94 respectively; which in
Yversing means’comprises a' pair of pilot valves
turn, communicate f With.l oppositeve’ndsV of the
19 mounted in the brackets 22- and having actu
valve 82. Actuation of the Valve v91 is'effective
ating rollers 80 extending through openings 8| in
to relieve the pressure at either selected end of
the sleeve 24 and positioned for engagement With
the valve* 82 and to exhaust vthe same through
v"heads 55 attached to the cylinder 5|v at opposite=`
the exhaust tube |90 to the .reservoir 89. This
- ends of the> stroke of the latter. Actuation of one.
reverses the valve 82 and reverses the now of ñuid
of the pilot valves 19 is operable to change the
to the. cylinder 5| ina manner similar to the
flovvv of ñuid from the pump 5_8 to the opposite
reversal eiïected by the pilot valves .19 and per
endof the cylinder 5|,thereby reversing the di
rection of longitudinal movement of the cylinder. 30 mits -the longitudinal movement of the .cylinder
v ' Reference >is now made to the hydraulicV dia- '
‘ gram shown in Figure 7, in which certain parts
of the present device are illustrated diagrammat- '
ically vfor the purpose of showing the operation
' of thel hydraulic system.- 82 is abalanced, >four
ïway, piston-type pilot-operated control valve of
"a conventional type." Valve 82v has ports 8,3'Iand
84 communicating by means ofthe tubes 85 and
86 respectively lto the’ends of the passages 48
provided in the piston rods 43 and 44., Outlet'
>Aportfß'l of the valve 82 communicates through
f >tube 88 to th'e ñuidreservoir'89. Tube 98 sup
to be reversed at any time so that :the .cable
guiding means willfollowthe Winding or' un
Winding of the cable in the proper manner. «
'Although' I have shown and'described certain
embodiments of my invention,V it Will be under
stood thatI do not wish to be. limited :to the exact
construction shown and described, but that >vari- .
ous changes andmodificationsmay be made as
do not depart l’from the spirit 'and vscope of ‘my
invention as defined in the appended claims". i'
What I claim is:
l. A device for level Winding a cable'on a drum
plies ñuid from the reservoir to the positive dis
comprising a member movable axially of the
placement pump 58, the outlet 1,8 of which com
" municates by~ means of a tube 9| to the inlet port'
ber, hydraulic moans arranged to movesaid mem
' 92 ofthe valve.
Operation of the valve 82'to reverse `the flovv of '
drum, cableY guiding means carried by said mem- "
ber -axially of the drum,- and a, cam on the flange
of the drum arranged ,to actuate said hydraulic
lfluid to the cylinder 5| is effected _by .the pilot
means in timed relation to the rotation ofthe
valves 19 which are connectedl to opposite’ends, s,
, 2. A device for level winding a cable on a drum
of the valve 82 by the tubes 93 ¿and 94.1 The pilot '
»valves are adapted _to be exhaustedr to thereser'
comprising a member reoiprocable axially of the
Voir 89 by means of the tubes 95 and 96 which
Icommunicate With tube ßß'leading to they reser
drum, cable guiding means carried by saidmem- " i
ber, a positive displacement hydraulic pump, ,
means vfor .actuating said pump in .timed rela'
tion to the rotation of the drum to move said
member axially of the drum ‘to level Wind the
The pilot valves 'I9 vare of conventional
' type and,'when Vactuated by engagement with ‘
‘th'e cylinder 5I at one end of the stroke of the
latter, operate to relieve the pressure at the cor
responding end of the valve 82, thus automat
ically reversing the piston within the valve and
reversing the direction of fluid ilow. In de
tail, when cylinder 5I andthe cable fairlead
carried thereby are moving to the left of .Figure 7,
iiuid from the pump 58Y is directed by th'eAvalve
_I 82v through the port 83 and >the tube 85 to the
interior of'the cylinder at the left end thereof.V
At the same time, fluid from the right end of
` cable thereon, and means for adjusting‘the dis
placement of said pump to change the rate of
movement of said member relative to the rate of
rotation of said drum.
3. A device for level winding a cable on a drum
’ comprising a member reciprocable axially of the
drum, cable guiding means carriedby said mem
ber, `a, positive displacement hydraulic fpump, a
cam for actuating said pump, said cam being
movable in timed relation to the rotation of the
the >cylinder 5I is exhausted through the tube
_drum to move said member axially _of the drum
86 to the valve 82 and to the reservoir 89 through
the tube 88. When the cylinder 5l reachesthe
adjusting the displacement . of said pump to
end of its leftWard stroke, the roller on the pilot ‘
valve 19 is engaged by the cylinder andthe
pressure on the left-hand end of the valve 82 is
relieved through the tube 93 and exhausted
through the pilot valve and the tubes 95, 96 and
88 t0 the reservoir 89. This reverses the valve
to level Wind the cable thereon, and means for
change the rate of movement of said member
relative to the rate of rotation of the drum.
4. A device for level winding a cable on a drum
comprisinga cylinder element and a piston ele
ment, one of said elements being fixed and the
other being reciprocable relative thereto, a cable
.,i?airlead carried yby .the s-recinrocable'element, '.a
Yon the :flange of the .drum-,arcani .follower :carmied
by said :lever and vengageable with said c~am,~;and
¿resilient means acting on .said îlever «..t'o hold said
- .positive .displacement hydraulic pump, `a' hydrau
.v lic.f.conduit-conneoting said ,pump to the interiorY
of said cylinder -element,¿and a, lcam onl the ñange
>cam follower in :engagement with .said «cam ?«so
Y:of -the'drum.engageable with said lïpump to actu 5 . that rotation ¿of the drum'operates said .-pumptand
ate: the latter -in timed relation :to the rotation
moves ’said .cable :guiding vmeans axially of the'
of the drum Wh'ereby_"fluid is for-ced yfrom the
drum in 'timed relation >to :the 'rotation -ofßthe
,pump into the cylinder element to move said
cable .fairlead to Alevel wind the cable on the drum. '
. 9. «A'devioe for level Win-ding acableen azlrum
`5. A device >for'level lWinding a cable on a -drum
comprising a memberfmova'ble axially 1:01’ ‘the
vcomprising a ïcylinder -`element .and a piston ele-`v
ment, one of said elements being -iixed and the
drum, cable guidingmeans »carried bysaidmem
Vber,'hydraulically actuated '_In‘eans arranged to'
»other being reciprocable >relative thereto, a cable ’
rmove said' member axially :of .the drum, aspump .
Y‘fairlead carried by the reciprocable element, a
having .relatively .-reciprocable-„piston and...radin--V
positive displacement hydraulic Ipump, hydraulic 15VA der: elements, a Apivotally*mounted lever econ
'conduits providing >communication between said
.nected .tof-’one -of said relativelyl reci-procable ele~
pump and 'the opposite »ends of the :cylinder ele-‘> . ments, means associated withjsaiddrum ioiwosci-l
yment, means for actuating `said 4pump intimed
relation to th'e rotation of »the drum, a valve forV
lering, said lever vin timed relations@ :retenedor Í ’
said drum, and »meansfor adjusting thelocation '
directing fthe. flow of fluid Lfrom 'said` pump to;
of the-connectionbetvveenfthe lever »and-'the one
'either endof the cylinder element,- and a pair M of .the> Yrelatively'.reciprocable velen'ients attached
>-o'f pilot valves, said pilot valve/sb‘eing engaged by ' . thereto to varysthe stroke of the pum'ntò AChange
the recipro'cableV element at opposite ends :of its
>the rate of. movement of the-...cable guiding means
`.reciprocation',V connections :between .said ypilot , relative .to the rate of rotationgof the-drum, ,Y _.
'valves and the?ñrst'fmentioned valve to reverse »25
Vl0..A device for level Winding za' »cable-*onßa
` ¿the flow of‘fluid from the Ypump from one endgof
`:the cylinder elementto the other end >to lreverse
the .movement of .the reciprocable element and
drum .comprising yal sleeve .mounted AWith its Í¿axis
- parallel to V~the .axis ' of the drum »and having »a
longitudinal slot therein, a cylinder mounted 4for '
the cable fairlead to wind'th'e cable on the drum` V reciprocation yWithin said sleeve, `a ,piston Within
inf-a plurality of layers, and independently-oper 30, saidV cylinder, said `piston being ñxed relative lto
ated means: for .reversing the reciprocationlof the
said sleeve, .hydraulic means torfrec-iprocatingsaid
cylinder, cable vguiding means'- mounted lon-.said
reciprocable relement `at anyV point in its travel.
6. Adevice for level Winding >acable -on a drum
sleeve forvaxial movement V.relative thereto, »and
` .comprising a 4cylinder element and a ,piston ele-1
' means extending .through the sloth; saidfsleeve
ment,r one‘of saidv'e'l'ements >being .iixed and theï
otherY being .reciprocable relative `thereto, arcable
Vfairlead :movable 'in accordance ïwith the'recipro
¿and connectingsaid cylinder Í.and s'aid-cable«guid-y
.ingmeans .so that reciprocationof said-cylinder '
eiïectsa corresponding ¿reciprocation-ofsaid.cable . Y
1 cation-of the reciprocableelement,l a vpositivejdí's- `
>placement:hydraulic pumpfra hydraulic 'conduit
guiding means.
l1. A device/for level windingfavcable `bn .la
betweenî‘sai'd ...pump and said cylinder element, `40 drum comp-risingasleeve mounted witliitsfaxis
a Vcamfor actuating said pump, said cam being
Yparallel to the axisfof the drum, cooperating »..cyl
movable .in timed .relation to the rotation of the
y inder and ~piston elements/.concentrically mounted
drum to move said reciprocable element and
Within :said sleeve,Y one .of said elements A*being Y Y
th'e cable fairlead .to level Wind the cable onV the `
'iiXed :relative to said` .sleeve andthe other1 .being
` drum, andV -n'ieans for adjusting the stroke of
.vreciprocable .relative thereto, aframe rotatably>
said pump to chan-ge >the rate `of movement of " ,and slidably mounted on said.sleeve,;cable«-guid-f
the lcable'fairlead relativeVV to the rate 4of rota- L:g
tion of the drum.
Y 7. A device for level Winding a cable on a drum ,
ingmeans carried by said fram-e, rmeansconnect
Y. ingsaid >fratrie .to said reciprocable .element,-and
»._ hydr'aulicvmeans for actuating .said -reciprocable
comprising a. member movable axially vof the ‘5.0. element fto move said frarrieand »cable guiding
drum, >cable guiding means carried by said
`means axial of said sleeve.V
î Amember, hydraulically actuated meansariïanged . Y ¿'12, .Ai device for level winding .a .cable on a
to move »said member axially ofthe drum, Aa y
pump having relatively reciprooable vpiston and
cylinder elements, ‘a >ca-mï'follower associated with
one of .saidrelatively reciprocable elements, and
a cam .on Athe flange of said drum engageable with
saidfcam follower to actuate said `pump and move ‘
said cable guiding means Iin timed relation to
the rotation ofthe drum.
8. A device for level Winding a cable on a drum
l comprising a member movable axially of the
drum comprisinga sleeve mounted with .its axis '
parallel to the axis iof .the .drum and'V having 4a
,plurality of circumferentiallyspaced longitudinal
slots therein, a cylinder .mounted for reciproca
t‘i'on within said sleeve, a .piston Within .said cyl
inder, said piston being 'ñxed relative to said
sleeve, hydraulic means for reciprocating said
60 cylinder, a frame rotatably and -slidably mounted
on said sleeve, sheaves carried 'by said frame var- .K
ranged to guide the cable, and connecting means ï
drum, Jcableguiding means carriedby said mem
extending through said slots and engaging »said
ber, hydraulically actuated means arranged to
cylinder and said frame so that reciprocation of
move said member axially of the drum, a pump 65 said cylinder effects a corresponding reciproca
'having relatively reciprocable piston and cylinder
tion of said cable 'guiding‘m'eans
Y . „'el'emen'ts, a pivotally mounted lever connected to .
‘ 1 one of said relatively reciprocable elements, a cam
. l
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