US975559A - Winch. - Google Patents

Description

P. METGALF J; E. GARSON.

WINCH.

APPLIOATION FILED AUG. ze, 1909.

Eatented Nov. l5, 191.0.

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HY u@ w ene IZ MBTCALF L J E. CARSON.

WINCH.

APPLIGATION vFILED Amma, 1909.

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i *wmcm 975,559, e aangename-rg new. Patented Nov.- 15, 191e 1 Application mea August as, 1909. serial N0. 514,983.. Tb all whomit may co'ncerm.` i ently ofthe Ymotive device when the load nV Be it known that. we', 'Fnnn'nRrcK Mn'rcALF and JOHN E. CAnsoN,.citizens of 'the United Sallie.

States of America, and residing at .Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and -useful Improvements in Winches; and we do hereby declare the following to be a full, clear, and exact descri ltion of the invention, such as-Will enable ot ers skilled in t-he art to which it pertains to make and use the Thisv invention relates to improvements in. Winches .and particularly in mooring Winches.

.. The requiments of n mooring Winch are marized as consisting 1n certain novel de-` l that it notonly bring the vessel. to the dock,

but also when the vessel is alongside the dock that it hold it tightly in place, and if vthere is any relative movement between the vessel` and the dock due to the loading orA unloading of a cargo, the action oftidcs, waves or-passing vessels, or if forl any other reasons the vesel rises or falls, it' is essential that.v the Winchbe able to automatically pay out the line when the' load or vdrag in-` creases beyond a certainl amount to'4 avoid the breakage of the line or of the' Winch,l

again wind inthe line when it andthat it becomes slack, and thereby preserve a unlform tension on the line. Steam Winches having double cylinder steam en es are most commonl `employed forthe a ve purpose, inasmuc as the can befoverauled or reversedwhen t 'load or dragon the lines becomes excessive and can again A wind in the lines quickly when they become vother motive devices'than a steam engineV slack, the steam bein supplied to the cylinders continuously as ong as the Winches are 1n use. .l

One of the objects ofthe present invention isv theprovision of an etlicient winehwhieh answers all the requirements and wherein may be employed, such, for example, as an. electric motor. e

` i Another object is to improvegenerally the kconstruct-ion of. Winches and to provide a Winch Which is more eiicientand economical than those which have been employedv here-l tofore. 1

Incair inglout our invention We provide a winch aving. between vthe drum and the motor or motive device a friction clutch which permits the drum to turn independings k10 represents the' frame or bed of the kWinch Aupon which Aall the operating parts are mounted. 1

creases beyond a certain amount, and provvide means controlled by the load for auto# matically starting or stop ingjthe motor so f that when the' line' is slac off, the motor Will be started and Will cause ,thedrum to Wind in the line, and When the or the load falls tails of construction and combinations and arts 'which will be describe inthe specification and set forth in the appended claims. l

1 For an understanding of our invention- Figure 1 is a. plan View of a mooring winch constructed along the preferred lines of our invention. Fig.. 2 is aside elevation oft-hesame.vv y Y.

Referring vnow to the figures of the draw- At 11 is shown a winding drum which is adaptedv to receive the line or cable v12, and.4

which is secured to al horizontal shaft 13 r'mounted in suitable frames or housingSfI/t carried by the bed 10. The shaft 13 has secured thereto a .large gearwheel 15 which meshes With the pinion' 16 loosely mounted l on a counter-shaft V17 which is alsov supported from the bed 10 by suitable frames or housings 18.` The shaft 17 vis provided withV a friction clutch consisting in this case 'reference is hadto the accompanying sheets off drawings in which-,- 8o

of two sections 19 and 20 Which 'rotate with l the shaft but ma move axially thereof and Which Amafy be orced against flanges (not shown) o the pinion 16 y acoil spring 21 which also surrounds the s aft 17. The tension of the sprin 21 may be regulated by a hand' Wheel 22 aving a threaded hub 23 Which engages a threaded portion of the shaft, the spring 21 being in this case between the hand wheel andthe section 2O of the clutch. a

For the purpose of keeping the pinion 16' in alinenient witln ear l 1.5 and 'for' the" further purpose of revu .ating the "tension of the s ring 21, an adJustable nut'v 24 is provide onjthe shaft', and thisnut engages and,

normally holds against'endwi'se movement the `section 19 of .the clutch. In order thatthe Yspring may not be compressed or' set ytoo tightlyuve provide, means which iiiaygbe given -a predetermined adjustment for 'limiti ing the axial movement'of' lthe hand 'wheel, and this means consists in this case'A of an arm 25 which is lcarried by an adjustable nut Y or ring 26 mounted on thethreadedsecti'on `ofthe shaft,`the :11111.25 having'a portion arm 25so. as to stop the handwheel lat* any desiredposition'and with aspri-ng of the` proper'sizepthe han'd wheel when' moved to Y' 1 the predetermined position `will cause Vany-' p desired power to be transmittedbetween the,

` isk exceeded by. f the loadk on 'the drum, the

inion .and the clutcliand wliengthis power` clutch. will sli l aiidpermit thedijum `to ro.- tate indepen'c ent-ly of or relativeA to 'the clutch; counterfs'haft Aand other `parts "to be mentioned presently. By shiftingthe hand Wheel away-Q from' thegclu'tch .the spring ten- Vsion may benvithdrawnfrom the clutch,.per-t mitting thc )inion 1Q tobecome loosevon the' *counter-sha t and free the drumi .from fthe control of Vthemotor or motive device to be referredto, softhat the line'can be unvvound Yor removed fromtlie drum byhand. 1.-. Secured tothe counterfsliaft 17 isfa'flarge gear 27 which meshes with a pinion Vv28c`ajrried by. a swingir'igL or oscillatory .frame.29, thepinion 28 beingeiigaged byV apinion 30 which in this case. is secured tothe shaft-3 1v ofamotoror motive Ydevice 82. The motor 32 maybe ofQany ldesired/type, as arQza'sv certain'features of our invention are "concernedbut in vthis lcasewe have 'shown' an electric Vmotor Whichfvve refer toV employ, andl this motor is preferab y of the ordinary series type.; Forv 'the purpose of, manually controlling the motor;`wefhaveshown an ordinary controller 33 jliavi'ng al `mainij perating handlelll anda reversing switch handle 36.' In order; to normally prevent reversal ofthe motorshaft and to give hold. ing power tothe vWinch when the poweris thrown off,v we employ ai ratchet wheel 37. on the motor shaftland ratchetfingerBS which ermits thevmotor shaft 31 to turn freely. lin one direction butprevents it from turning in i the oppositeV direction; This ratchet,.fingerv 38" may'v be v`manuallyf disenf motor is reversed to unwind the :cable l'iroijn the drum.` 'i A V f 5 The swinging` or "oscillatory frame 29 which'carries 'thev pinion 28 is mountedon' a stud39 carried by ay suitable standard 4 0' @I femmj the v"motor circuit vwhich! will be. explainedf 1f f VThen the 'line' is ybeing wound on the ter clockwise direction and the action'o/f the pmionHSOr Awhen turning in this `direction tends to cause the'pinion 28 to rideupward the pinion '28 is normally resisted byacoil "43 carried bythe-,arm 4ljand which has av shoulder43''on `which the lower end oft-he spring rests. vThe upper` end of the spring infcea'sed or decreased as desired. .Secured to the end of ,the arm 41 is a switch arm 4G tain'ffaniount, the pinion=28 will be moved upwardly raising the arm Vlll v 'and causing the button 49 to be shifted -an amount sulii-V cientgtobreak the circuit of the motor so as to stop itsv operation. `VVUnderordinary cir#` cumsta'nces whenthe load or ull Vonthe'line n, load will be sustained by the friction'lutch A andlratchet ii'iechanism;` The upward move'- ment'of the pinion and consequently of the ,armtl is a'ver'ysli'ght one as visV indicated by .theiconstruction Vvo the switch mechanism.` fIt will bey seen'thatrno power or-energyis consumed under normal' conditionsv 'or even when: theV slipping between) the parts ofthe clutch permits the linjetopayout whenthe pull vonl Y`the `line exceedsV the predetermined limit,l and the winch is, tlierefrorefverye'c. nomicalfinoperation. QVVhat-ivfe claim ist--` t v v 1'. vInawinch, a'drum adapted to'recei'v drum', means includinga friction clutchfor Y operatively connecting the drumlrand motor, Vmeans normally preventing the reversal yof the motor Jfor holding the' sameVV against drum,A the-.motor rotates in the direction iii-1 dicate'd by therarrow in Fig. 25 or 1n a counlon the gear 27.'This lupward movement ot'V lanyothei' reason-'the load Vis increased a cer-v lis normal,4 the motor is stationary .andV theV a line, an electric motor VforY operating -the' the end thereofan armftl w1iich operates suitable switch mechanism `to open andclose spring 42 mounted on aii'adjustable studVv '2abutsagainst a,.stationary*project-ion 44; and Ytherefore by adJustingthe-.stud t3k up v ofid'own `the tension'on 'the spiing l2 canl be Y 'lfvhicln as shown, is somewhat T-shaped, this Y Y switch 1 arm having at its end a vertical por-1 movement in one direction, and means controlled by the pull on the line for automatically opening and closing the motor circuit.

2. In a. Winch, a drum adapted to receive a line, a motive device, means operatively connecting the drum and motive device comprising a friction clutch and a plurality of gears one of said gears l'iaving a movable support and having a position depending upon the pull on the line, and means operated by the movement of said gear due to the variations in the pull on the line for automatically starting and stopping the motive device.

3. In a Winch, a drum adapted'to receive a line, a motor for operating the drum, means operatively connecting the motor and drum comprising a friction clutch and gearing including' an idler gear, a swinging frame for said idler gear adapted to be shifted by variations in the pull on the line, yieldable means resisting the movement of said frame, and means operated by. the movement of said frame for automatically starting and stopping the motive device.

y 4. In a winch, a drumy ada )ted to receive a line, a counter-shaft geared to said drum and provided with an adjustable friction clutch, an electric motor, gearing connecting said motor and counter shaft, said gearing including van idler pinion, an oscillatory or swinging frame carrying said pinion and adapted to he shifted by variations in the load on the drum, yieldable means normally resisting the movement of said fra me, means for normally preventing the movement of the motor in one direction, an arm movable with said swinging frame, and switch mechanism operated by movements of said arm for automatically opening and closing the motor circuit.

In testimony whereof, we sign the foregoing specification, in the presence of two witnesses.

FREDERICK METCALF. JOHN E. CARSON.

Witnesses:

VICTOR C. LYNCH, N. L. MCDONNELL.

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