US2083489A

US2083489A - Winch

Info

Publication number: US2083489A
Application number: US76670A
Authority: US
Inventors: Jesse M Benson
Original assignee: JOSEPH A GHEEN
Current assignee: JOSEPH A GHEEN
Priority date: 1936-04-27
Filing date: 1936-04-27
Publication date: 1937-06-08
Anticipated expiration: 1954-06-08

Description

June 8, 1937.

J. M. BENSON 2,083,489

WINCH Filed April 27, 1956 2 Sheets-Sheet l Jame M ens-02a GHQ/MIL June 8, 1937. J BENSON 2,083,489

\ I wnzcn Filed April 27, 1956 2 Sheets-Sheet 2 Patented June 8, 1937 I I UNITED STATES PATE T OFFICE WINCH Jesse M. Benson, Concord, Tenn., assignor of one-half to Joseph A. Gheen, Concord, Tenn.

Application April 27, 1936, Serial No. 76,670

14 Claims. (01. 254-186) This invention relates to a winch designed priwinch for the purpose referred to, capable of marily for loading and unloading purposes, but it being driven in a clockwise and a counterclockis to be understood that a winch, in accordance wise direction, including means for braking the with this invention, is to be employed in any operating movement of the winch when desired.

The invention has for its object, a winch convide, in a manner as hereinafter set forth, a structed in a manner as hereinafter set forth, Winch for the purpose referred to which is simple including a revoluble drum on which and from in its construction and arrangement, unusually which a cable is to respectively wind on and off, strong, durable, compact, readily assembled,

with the drum arranged in a manner relative thoroughly e icie t in ts cflnveniently p 10 to the other elements of the winch to prevent the ated and comparatively inexpensive to manufacapplication of torque. to the drum, resulting in ture.

a smooth, even and non-retarded revolving of the With the foregoing and other objects in view,

drum during the operation of the winch, whether the invention consists of the novel construct fl the latter is operated in a clockwsie or countercombination and arrang t of P s as w be 15 clockwise direction. more specifically referred to and areas illus- A further object of the invention is to provide, trated in the accompanying drawings wherein is in a manner as hereinafter set forth, a winch inshown an embodiment of the invention, but it is eluding a stationary shaft, an operating shaft to be understood that changes, variations and revoluble about the stationary shaft, a drum modifications may be resorted to which fall withrevoluble about the operating shaft, a drive for in thescope of the invention as claim-ed. H V

the operating shaft located adjacent one end of In the drawings: j the drum and driven means for the drum 10- Figure 1 is an elevation of the winch looking cated adjacent the other end of the latter and towards the outer face of one of its supports or w operated fro-m the operating shaft, and with the heads, 95 aforesaid features of the winch being so related Figure 2 is a section on line 22 Figure 1,

to each other to overcome the application of Figure 3 is a section on line 3; 3 Figure 2, torque to the drum as they provide for maintain- Figure 4 is a section on line 4--4 Figure 2, ing the axis of the drum at all times parallel to Figure 5 is a section on line 5-5 Figure 1, and the axis of said operating shaftwhen the winch Figure 6 is a perspective view illustrating the 30 is operated in clockwise or counterclockwise diform of the latching members employed. rections. The winch includes a pair of supports or heads A further object of the invention is to provide, i, 2 disposed in parallel spaced relation. in a manner as hereinafter set forth, a winch The head I consists of a flat rectangular base capable of being operated in a clockwise direction plate 3 having openings 4 adjacent its ends for 35 at different speeds and in a counterclockwise dithe p-assage'of holdfast means for anchoring it l'ection at different p to a support,,not shown, a vertical web '5 of less A further object of the invention is to provide, length than, flush with the front edge, Spaced in a manner as hereinafter set forth, a winch infrom th end edges and integral with the upper cluding a revoluble drum, a driving means for seface of plate 3, an upstanding substantially lectively revolving the drumlin Clockwise and closed front and open rear annular housing 6 counterclockwise directions, and means for selecintegral and having the outer face of its front tively Operating Said drum at different pee in flushwith the outer face of the web 5. The latter a clockwise and in a counterclockwise direction. t nd laterally in opposite directions from the I A further ject 0f e invention is to provide, lower portion of the housing 5 and in proximity in a manner as hereinafter set forth, a revoluble t its ends is formed with openings 1. The front drum, a driving means f the drum ud ng 8 of housing 6 has an axial opening 9, an openmeshed gears and W Said driving ea s for the ing IQ of greater diameter than, arranged above drum so arranged relative to the latter to proand'to one side of opening 9 anda semi-circular 5O vide t e gears thereof to at all times during cutout 'Il aligning in lateral spaced relation with p the operation of the winch, in uniform mesh rerespect to opening ill. The body l2 of housing sulting in a smooth, even, non-retarding revolv- 6 is formed at its top and at one side of its ing of the drum. vertical medianwith a' circumferentially ex- A further object of the invention is to protending slot I3 and a pair of upstanding spaced vide, in a manner as hereinafter set forth, a parallel lugs M at the upper end of slot 13. One 55 connection for which it may be found applicable. Further objects of the invention are to pro- ,5 g

,side of the, body I2 Zof'houising' ilhas a'transverse cutout I5, having its top and bottomedges registering with the ends of the edge of the cutout II'. Formed integral with'the front 8 of housingfi and registering'withthe.wall of opening I is'a tubular extension I6 constituting; a.' guide for a .purposetobereferred to. Formed.

integral with theiront 8 and body-I2 ofhousing 5 is an extensionlI consistingjof a tubular front part I8 anda semif circular-rearipart Ill-having V I a closure piece I9 at its rear end. The said tubular part I8 projects'forwardly irom the front cutout I5. The extension "I'l co aots 'with'jthe, cutouts II, I5 to provide a guide for a purpdse' to bereferred to. The extension lfi and ,the

' tubular .part j I 8. of the. extension Ii are arranged 'parallelspaced relation: '3

Thats'ide' otthe extension lfifwhich opposes.- thesaid tubular: part. I8 ha's a vertical cutout 2 0; That side of the said tubular part. which I r opposes the lextensionhliij has a vertical cutout; 1|; ThecutoutsfZlLJI. aredisposed in parallel spaced relation. 3 Formed.integral withfth'e cue, outside of :and extending. above and depending below thefextension I6 .is a .verf ially' disposed hollow member 22having an upper'tubular part' 23, anintermediate semi-circular part Z lian'd' a lower. tubular part 25. The bottom of. part 23 top of part 25 and edgesfof part 24 register with the edges of the cutoutjn "The part 23 has its top edge formed with .a notch 2 6... The member 2 2 provides a" housing for; a "rotatable vertically 1 movable. -latch1ngf,..rnember 2T of circular. cross section extendin ginto the extension 16 "and-"have ing its: intermediate portion reduced :to," form a segmental grooye '2! for registering-with"{the inner face of. extension I Q 'to provide a'clearance for a purpose to' be referred to. The upperend and extending. above andidependingibelowf the I 55 said tubular part1} or extension n is; a Veltie'.

of-the latching member 21 is provided with a handle" 28 for seatingin the notch 26' forithe,

purpose of detachably n'lai n'taining member v2'I in non latching position with the wall of'the groove?! directed towardsthe outer end'ofextension I.6.. The lowe'r; .end' of .member."2l d'e pends belowthesaidpart 25 and'carries .a cotter 29 for liniitingthe upward. movement of the latching member 2.! relativeto the housing me'rnber :22. Formed'integral with the cutout 'side' of cally disposed hollow member 30 having an up-j perjtubular part3I an intermediate semi circular part3? and a lower tubular-.part 33, ;Th'e

bottomof'jpart'ZiI; top of. partf33 and edges Y of part- 32 register withthe. edg of the cuto uty 2|:- E I'he part I has its top edge.;.formed ana; notch34; The member 30.-provides a housing,

for a rotatable vertically movable latching rnemiber 35, of cirCuIar cross,section extending intor V the part I8'of extension" andhaving itsin-termediate portion reduced to form-a segmental groove 36 for registering with theinner f ce-pr part I8 of exten siong'II; -to providela clearance.

for a purpose to b'erreferred to. ;The upper end of 5 the/latching. member 35 1 is provided with a endfof the iatching member 35-depends below 2,os3,4sa

the said'part 33 and carries a cotter 38 for limit ing the. upward'inovement ofthe latching member 35 relative to the housing member 30. There otherfendis fixed tothe eye lfOf the cotter 38.

Thepurpose orrhelatching members will be l iereinafter referred to.

The support or head 2 consists of a flat rec- T'8 of housing ii'; 'The'said semi-circular part ex; taiigular base 'plate' 41;havi ng openings 43 adtends laterally'from the body IZofhousing .Bl. One half of the said tubuIarpartfIB registers with the edge of the cutout. I I) The side edges of the said part I9 register with the edges of the r;

jacent its ends for the'passage of holdfast means for anchoring itto' a support, not'shown, a verti= 'cal'web 44 of less length than, flush with the front'edgespaced fromthe end edges and inte-f- 1 gm] with the upperface ofplate 42, an upstand- Y ing substantially closed front and open rear annularhousing 45integral .andhaving the outer facefof its front -flush'with the outer. faceoi! the web; The, latterextends'laterallyin opposite.

directions fromthe lower' portion of'the hous- 2 in'g'fifand 'in proximity ,to;its;ends is formed with openings 46 which are to align with the openingsl'inithe web 5. Thefront flothous ing has an axial opening 48, an inwardly ex-i tending fixed stub shaft 49 carrying ,arevoluble power transmitting ge 50fand an inwardly ex;

tending split circular stop; 5 I

Arrange? between a d jh ainstifthe 1 inner faces of theiwebs Sand. are parallel tubular sp'acing members 52 fonthe heads I,'2.' Extendingjthrough the aligning openings I, 46 and the members 52 are tie rods 53 carrying on their ends'securingnuts 5 L The webs 5, 44, members 52;j'ti rods;53.;jand nuts 54 coact to secure the heads ;.I 2 together and for maintaining said heads iniparallel spaced relation I Extending through

thempenings

9, 48 of-the 1 heads], 2 respectivelmfisa supporting :shaft55 provided withmeans, as at 56 at each' of. itsendsf I revolublejdrun 58. .The shaft 5Iv revolvesxabout.

the: shaft5 5j The drum -58.re,volves about the shaft. 5'I. The latter includes .a tubulanbody part 59iormed lengthwiseoffone end terminal portion. thereof with a' circu'm'ferentially extend ing endless rowof gear'teeth; as at 60, to constitute atdriving element of high sped for shaft 51.

Atthe-innerend or the teeth 60 there is formed.

integralwith the said body. part .59 an annular flat laterally extendingdisc SI of slightly less;

annular" flange 62. having its outer face formed ci'roumferentially thereof. with an endless row or transversely extending gear teeth 63 to constitute .a drivingelementof lowlspeed for shaft 51;. The flange 62 is arranged injconcentric spaced-relation to theteeth' 6D. ,Theother. terminal portion ofthe body part 53 has formed lengthwise and circumferentially thereof with an endless row of gearitjeeth B I constituting apower-tr'ansmitting ,-element. 'The end'terminal portions ofthe body part 59 area: thej'same diameters. The body partf59 has its intermediate portion of reduced: inner andouter diameters tofform an internal groove 65,- an external groove .66 and a pair of spaced peripheral shoulders 61 upon which are mounted bearing sleeves or collars 68. The inter- V mediate portion of body part 59 is formedwith a lubricant conducting port69 leading from groove 65 to groove 66. The shaft 55 is formed with an axially arranged lubricant conducting channel l flat annular disc 15 of the same diameter as that of flange '54 and which is-provided at its outer edge with a rearwardly directed annular flange '16 having its inner face provided throughout transversely thereof with an endless row of gear teeth ll. The'fiange 16 is arranged in housing 45. The teeth 11 are in permanent mesh with the gear 50. The latter is arranged below and permanently meshes with the teeth 64. i That end of the body part 13 of the drum 58provided with the disc '35 is arranged at the inner end of the I teeth 6%. The splitsleeve i on the inner face of the front of housing 45 constitutes a stop for arresting the bodily shiftingof the drum in a direction. towards head 2 and also provides a protector for the teeth 6%. The bearing sleeves or collars 68 are interposed between the tubular body part 13 of the drum 58 and the shaft 51. That end of the body part 13 of the drum 58' provided with the flange l4 abuts the disc Bl. *The latter for a portion of its diameter is reduced to provide a clearance between it and a portion of the disc I5. The shaft 69 is suitably ported for supplying lubricant to the gear 50. cup 18 is attached to shaft 49. The tubular body part E3 of drum 58 has a peripheral apertured lug 19 for anchoring the inner end of the cable, not shown thereto. The inner face of the front of housing 5 has formed integral therewith a split collar Bil which forms an inward continuation of the extension l6.

The winch includes a rotatable actuating ele- I ment 8! for selective engagement with the

teeth

66 or 63 to selectively drive the shaft 5'! at difierent speeds. with the teeth fill and rotating, the shaft 51 is driven at a greater rate of speed than when element 8! is in engagement with the teeth 63 and rotated. The element 8| includes: a rotatable short coupling shaft 82 provided with a head 83 at its outer end, an annular peripheral groove 8d intermediate its ends and a lengthwise extending circumferentially disposed endless row ofgear teeth 85 at its inner end. The head 83 has a diametrically disposed passage 86 through which 1 extends a handle member Bl. The latter is adjustably secured to the' shaft 82 by a bindingscrew 88 carried by head 83. The extensions: l6,

1? provide guides for shaft 32. The shaft 82 is for selective passage through the tubular extension Hi to extend into the collar 86 or through the tubular part H! of the extension l! to extend into the housing 6. The teeth 85 are common to and are for selective meshing with the

teeth

69 or 63.

When shaft 82 extends through the extension 16, the teeth 85 mesh with the teeth 69 and on the revolving of element iii the shaft 5'! is operated at high or its greatest speed. When shaft 82 is extended through the tubular part'lfi of extension H, the teeth 85 mesh with the-teeth 63 and on rotation of element Bl the shaft 5'? is operated at its lowest speed. When shaft, 5! is operated The channel extends from a cup A lubricant fitting or When element 8| is in engagement.

fromeither one of its driving elements at one end thereof, thepower transmitting element, provided bythe teeth 64 will also'be operated and through the mediumof the gear 5ll and teethl'l, the drum 58'-will be revolved. in one direction, the shaft 51 will be operated in a clockwise'direction and'on rotating the element 8! is an opposite direction, the shaft .51 will be operated in a counterclockwise direction.

Mounted on apivot 89 carried by the lugs M.

tation when the housing revolves clockwise or when-it revolves anti-clockwise.

:Opposing thexfront face of the expandible andcontractible brake element 95 of split ring-like form which also opposes and coacts-with the inner face of the flange 67.. The disc 6! "has its front face "formed with spaced parallel-*lugsfSZarrang'ed'in the path of the ends of element 9! to arrest the travelling of the latter in a circular part relative to disc 5 I. The latter also -has'its front face provided with spaced confiners 93-for element 9|. The latter is provided atopposite sides thereof with aligning apertured lugs 94 to which the ends of a controlling spring 95 are anchored. The ends of element 9| are formed with a pair of inwardly extending apertured lugs 96 to which are pivotally connected, as at 91 one end of a pair of links 98. These latter have their other ends mounted on a common pivot 99 carried by one endof a lever arm I638. The other end of arm [Bil is fixed to the inner end of rock shaft llll inclined angle-shaped handle Hi2 which when moved downwardly from its outer end rocks shaft Elli in a direction to applythe brake element 9i against the action of spring 95.

The groove 8 is common to the latching

members

21, 35. When shaft 82 is passed into the tubular extension I1, it contacts member 21 turning it, against the action of its controlling spring, to have the wall of groove Zi align with the inner face of extension H to enable the shaft 82 to pass through said extension to engage with the teeth (ill, by the time the engagement had properly been made, the groove 8Q then opposes cutout 28 whereby member 2'! is released and turns to extend into groove 8 to latch the teeth of shaft 82 in engagement with the teeth 65. The latching member 35 is-operated in the same manner as latching member 25 and functions to latch the teeth of shaft 82 in engagement with the teeth 63.

Whenfthe actuating element BI is in toothed engagement with the teeth 60, retained in such position by the latching member and rotated, the shaft 5"! is revolubly driven at what may be termed high speed and on the revolving of shaft 57, the teeth 6 will drive gear 5% which meshing with the teeth ll will provide for the revolving of the drum 5B in the same direction and at the same On rotating the element 81' disc BI is anthe teeth" so, the drum I when engaged with teeth; 63. y

V Whenit is desired to slacken or retard the op-' eration of the drum, .thelbraking mechanism-is applied totheinneriface of the annular flangei62.

What I claim is:

1. In a; winch; an. operating shaft provided at, one end with apair oi' spacediselectively actuated driving elements being soformedfor selectively operating 'saidishaft' at diflerentspeedsin. a I clockwise or in a counterclockwise direction, said} I shaft being provided at its other fend with a I power, transmitting element, a drum revolubly: mountedon said shaft, means operated from said power transmitting elementand engaging one end; of the drum for. revolving the latter,and a port-' able rotatable actuating element common to and for selelitive, h ble engagement 'withjthe driving l m n to provideifor .theoperating -of saidshaftp 7 2. Ina winch, an; operating shaft-provided at 'oneend with a pair of spacedjselectively acjtuated driving elements being so formedgfor selectively operating said shaft at different speeds in a clockwise or in, a counterclockwise, direction,

said shaft being providedat its other end. with a power transmitting element, ardrum revolubly mounted on said shaft, means operated from said power transmitting element and engaging one endof the drum for re'volving-the latter, a portable rotatable actuating element common to and I for selective, detachable engagement with'the driving elements to provide for the operatingof said shaft, a pair of spaced parallelisupports between which are arranged'said shaft and drum,

and a stationary shaftconnecting saidsupports together and about which. revolves said'operating .sha ft 3. In a winch, an operating shaft providedat one end with a'pair of spacedselectively actuated driving elements being so formed for selectively operating said shaft at different speeds inxa clockwise or in a counterclockwise direction, said shaft being provided at its other 'end with a power transmitting element, a drum revolublymounted onsaid shaft, means operated from saidpower 7 engaging one end of latter, a portable ro-" transmitting element and the drum for. revolving the tatable actuating element-common to and for selective, detachable engagement with'thegi'driv ing elements toprovide for the operating of said shaft, and means for automatically latching said portable element to that driving element actu-f ated thereby.

'4. In a winch, anoperating shaft provided at one end with a pair of spaced selectively actuated driving elements beingQso formed for selectively operating said shaft at different speeds in, a clockwise or in a counterclockwise direction,-

said shaft beingprovided at its otherendwith a power transmitting element, a drum revolubly a mounted on said shaft, means operated from said 7 power transmitting element?v and fengagingxone 'end of the drum for revolvingthelatter, aportablerotatable actuating element common to and vin a clockwise or ii for selective, detachable engagement with the.

driving elements to provide for the operati'ngof said "shaft, a, pair of spaced parallel supports between which-are arranged s'aidshaftanddrum, afstationa'ry shaft connecting said supportstogether and aboutwhichrevolves said operating I shaft; one ofsaid supports havingmeans for the passage of said portable-element to selectively engage said driving elements, and such support and said portable element having coa'cting means for automatically latching said=portable element to that drivin'g'elementactuated'thereby. I

5'.-In a'winch, an operating shaft provided at one end with"a:pair of spaced selectively actuted driving elements beingsoformed for selectively operating said shaft at different speeds in a clockwise or in a counterclockwise direction, said shaft being: provided at its other end with a power transmitting element, a drum revolubly 12 power transmittingelement and engaging'one end of the drum for revolving the' latter, a portmounted on :said shaft, meansoperated-from' said able'rotatable actuating element common'to and for selective; detachable engagement with the driving elements to provide for the operating of said shaft, a pair ofspaced parallels'upportsbetween which are far range'd'said shaft anddrum,

astationary shaft connecting-said supports to-V gether, and about whichrevolves said 'operating shaft, one ofsaid{supports having means for the a passage of said portable elementto selectivelyengage said driving elements, such support and j said portable element having coacting means for automatically latching said portable element to that driving element actuated thereby, and that support having means for the passage of'said' portable element being provided with a pivoted stop coacting with one'of said driving elements to to that direction in which it is driven.

V 6. In a winch, an operating shaft provided at toothed driving elements being so formed for selectively operating said shaft at different speeds in a clockwise or ina counterclockwise direction,

. said'shaft being provided at its other end with a power transmitting element, a :drum revolubly v;mou nted?'on, said shaft, means operated from said power-"transmittingelement and engaging one end of the drum for revolving the latter, and

a portable rotatable toothed actuating element common to and for selective, detachable engagement with the driving elements to providejfor prevent the-drmnrevolving in a 'contradirection V :one end with'a pair, of spaced selectively actuated I the operating of said shaft," the said driving, elements being of different diameters and arranged in'concentric spaced relation, one of said 'driving: elements being i formed from lengthwise ex- .tendings-inherent parts at one end of said shaft,

; and the other -of said driving e'lement'sbeingin V thaforrn of an upstanding outerperipherally g toothedhorizontally disposed annulusintegrally-g connected with said shaft" at "the inner jend of v the said inherent parts? i a v '7; In a winch, an'operating shaft provided at one'endwith a pair of spaced selectively actuated driving elements being so formed for selectively operating said shaft at different speeds said shaft being provided at its other end with a power transmittingelement, a drum revolubly mounted on said shaft, means operated from said power trans rnitting element and engaging one end'of the drum for revolving the latter, a portable rotatable actuating element common to and for selective, detachable -engagement with the in a counterclockwise direction,

driving elements to provide for the operating of said shaft, the said driving elements being of different diameters and arranged in concentric spaced relation, and means coacting with the outer one of said driving elements to prevent the drum revolving in a contradirection to that direction in which it is driven.

8.- In a winch, a revoluble drum, an operating shaft provided circumferentially and lengthwise of the periphery of one of its end terminal portions with an endless row of teeth constituting a driving element for high speed of the shaft, a-

disk integral with the said end terminal portion formed with an annular flange arranged in concentric spaced relation to said teeth and having its outer face formed with an endless row of teeth constituting a driving element for slow speed of the shaft and provided circumferentially and lengthwise of the periphery of its other end terminal portion with an endless row of teeth constituting a power transmitting element, said drum being revolubly mounted on said shaft, an actuating element common to and for selective engagement with said driving elements to provide for the operating of said shaft, and means operated from said transmitting element and engaging with one end of the drum for operating the latter.

9. In a winch, a revoluble drum, an operating shaft provided circumferentially and lengthwise of the periphery of one of its end terminal portions with an endless row of teeth constituting a driving element for high speed of the shaft, a disk integral with the said end terminal portion formed with an annular flange arranged in concentric spaced relation to said teeth and having its outer face formed with an endless row of teeth constituting a driving element for slow speed of the shaft and provided circumferentially and lengthwise of the periphery of its other end terminal portion with an endless row of teeth constituting a power transmitting element, said drum being revolubly mounted on said shaft, an actuating element common to and for selective engagement with said driving elements to provide for the operating of said shaft, means operated from said transmitting element and engaging with one end of the drum for operating the latter, and means for automatically latching said actuating element to a selected driving element.

10. In a winch, a revoluble drum, an operating shaft provided circumferentially and lengthwise of the periphery of one of its end terminal por-,

tions with an endless row of teeth constituting a driving element for high speed of the shaft, a disk integral with the said end terminal portion formed with an annular flange arranged in concentric spaced relation to said teeth and having its outer face formed with an endless row of teeth constituting a driving element for slow speed of the shaft and provided circumferentially and lengthwise of the periphery of its other end terminal portion with an endless row of teeth constituting a power transmitting element, said drum being revolubly mounted on said shaft, an actuating element common to and for selecactuating element to a selected driving element,

and a braking means for said operating shaft.

11. In a winch, a revoluble drum, an operating shaft provided circumferentially and lengthwise of the peripheryof one of its end terminal portions with an endless row of teeth constituting a driving element for high speed of the shaft and drum, a disk integral with the said end terminal portion formed with an annular flange arranged in concentric spaced relation to said teeth and having its outer face formed with an endless row of teeth constituting a driving element for slow speed of the shaft and drum and provided circumferentially and lengthwise of the periphery of its other end terminal portion with an endless row of teeth constituting a power transmitting element, said drum being revolubly mounted on said shaft, an actuating element common to and for selective engagement with said driving elements to provide for the operating of said shaft, means operated from said transmitting element and engaging with one end of the drum for operating the latter, the said driving element for high speed of the shaft and drum having its circumference corresponding to that of the said power transmitting element.

12. In a winch, an operating shaft provided at one end with a pair of spaced selectively actuated driving elements being so formed for selectively operating said shaft at different speeds in a clockwise or in a counterclockwise direction, said shaft being provided at its other end with a power transmitting element, a drum revolubly mounted on said shaft, means operated from said power transmitting element and engaging one end of the drum for revolving the latter, and a portable rotatable actuating element common to and for selective, detachable engagement with the driving elements to' provide for the operating of said shaft, said driving elements being of different diameters and said power transmitting element corresponding in diameter tothe diameter of that driving element of smallest diameter.

13. The invention as set forth in claim 8 having combined therewith a pair of spaced parallel supports between which said drum and shaft are arranged, and a stationary shaft connecting said supports together and upon which said operating shaft revolves.

14. The invention as set forth in claim 8 having combined therewith a pair of spaced parallel supports between which said drum and shaft are arranged, a stationary shaft connecting said supports together and upon which revolves said operating shaft, one of said supports opposing in spaced relation the said driving elements and having means for the passage of said actuating element to a selected driving element, and said actuating element and the said support having coacting means for automatically latching the actuating element to a selected driving element.

JESSE M. BENSON.