US1929641A - Windlass - Google Patents

Description

C. V. KOONS Get. 10, 1933.

WINDLASS Filed May 7. 1931 5 Sheets-Sheet l Get. 10, 1933. c. v. KOONS 1,929,641

WINDLASS Filed May 7, 1931 5 Sheets-Sheet 2 Egg; 2. 10

[RUCZZDFA- 6247425 7K 0012s,

C V. KOONS Oct. 10, 1933.

6M6 K /Q3026,

1&3 E 25607 Oct. 10, 1933. Q v KOQNS 1.92.9,641

WI NDLASS Filed May 1931 5 Sheets-Sheet 4 Oct. 10, 1933. c. v. KOONS WIN'DLASS FiledMay 7, 1931 5 Sheets-Sheet 5 Patented Oct. 10, 1933 [UNITED STA WINDLASS Charles V. Koons, Philadelphia, Pa.,

American Engineering Company,

assignor to Philadelphia, Pa.,'a. corporation of Pennsylvania Application May 7,1931. Serial No. 535,705

8 Claims. (01. 251-185 This invention relates to improvements in windlasses, and a principal object-of the inventionis to provide a Windlass of novel and desirably compact form and of relatively simple construction and high operating efficiency.

Another object is to provide a Windlass that will occupy a minimum of deck space.

Still anotherobjectis to provide a Windlass of minimum athwartship dimensions. v A further object of the invention is to provide a windlass that permits the use of an end mounted motor, thus avoiding necessity of motor shaft coupling.

A still further object is to provide a Windlass having detachable levers for hand operation and gearreduction between said handle and the actuated parts. v

Another object is to provide a'windlass having provision both for hand and motor operation, and in which the methods may be utilized indiscriminately and without preparatory adjustments.

Another object is to provide a Windlass in which the worm wheel or equivalent shaft is provided with a driving head having slots and detachable keys connecting the-worm wheel to the driving head, whereby a positivedrive in both directions of rotation maybe had for hand operation.

' In the attached drawings: 1

Figure 1 is a plan and partial. sectional view-of a Windlass made in accordance" with my invention;

Fig. 2 is a side elevational view of the windlass; I

Fig. 3 is a fragmentary. sectional viewshowing the ratchet and pawl mechanism;

Fig. 4 is a section on the line 4-4, Fig. 3; V

Figs. 5 and 6 are detached views in perspective of elements of the pawl assembly; r

Fig. 7 is a plan and partial sectional view illustrating another embodiment of my invention;

Fig. 8 is a side elevational and partial sectional view of the Windlass illustrated in Fig. '7;

Fig. 9 is'a fragmentary sectional view illustrating certain details of the Windlass shown in Figs. 7 and 8;

Fig. 10 is a sectionon and r Fig. 11 is a view in perspective of one of the elements of the Windlass.

With reference to Figs. 1 to 6, inclusive,. of the drawings, the Windlass in one form comprises a supporting frame and housing 1 in which is journaled for rotation a shaft 2, this shaft extending through the wall of the housing at both ends and having secured to said ends the line 10-10, Fig. 9,

the rotary hoist parts which in the present instance consist at each end of a wildcat head 3 and drum or gypsey head 4. The drums 4 are keyed to the shaft, while the wildcat 3 may rotate freely upon journals formed upon the projecting end plates 5 of the housing. The

free rotation of the Wildcats 3 is controlled through the medium of brakes 6 mounted on the end plates and operative by means of levers 10 upon internal brake drums '7 at the inner ends of the Wildcats 3; and the latter may be operatively connected to the shaft 2 through clutches 8 mounted between the wildcats'3 and drums 4; The clutches consist in the present instance-of a member 8, keyed to the shaft, which carries one or more'pins. 9 which may be project-ed by a rotational movement of an actuating ring 11 journaled on the member -8 into interlocked engagement with the wildcat 3, whereby the latter is secured to the shaft. The shaft 2 carries a gear 12 which meshes with a pinion 13 upon a jack shaft 14 suitably journaled in the housing. As shown in Figs. 3 and 4, the shaft 14. also'carries a yoke 15 which constitutes a support for a pair of pawls'l6 arranged for rotation with the yoke 15 within an annular ratchet 17 forming a part of a worm wheel 18. Springs '19, normally retain the pawls 16 in operative engagement with the ratchet. Also suitably journaled in bearings 21 int-he housing 1, see Fig. 2, is a stub shaft 22 which carries a worm 23 intermeshing with the worm wheel 18. The shaft 22 also carries at one end a sprocket 20 which is connected through a suitable chain 24 with a sprocket 25 upon the armature shaft of an e1ectricrnotor'26. Thearrangement of shafts and journals is such that the motor shaft extends at right angles to the shaft 2 in a position midway between the ends of the latter, thus affording a compact, symmetrical and well-balanced assembly.

Journaled in and projecting through one side of the housing is a stub shaft 28 which carries a pinion 29 in mesh with the pinion 13. The outer end of the shaft 2 8 is formed to receive a crank (not shown) whereby the shaft may be turned manually. In normal operation, the drums 4 and wildcat 3 will be operated through the motor 26, this motor by rotating the worm wheel 18 in the direction indicated by'the arrow in Fig. 3 causing a corresponding rotation through the ratchet and pawl assembly of the shaft 14. When manual operation is required,

free rotation of the shaft 14 in the same direction through the pinions 29 and 13.

In the embodiment of my invention described above, the anchor or other load is adapted to be lowered by gravity controlled through the braking mechanism, and in Figs. 7 toll, in.- clusive, I have illustrated a Windlass made in accordance with my invention, in which provision is made for a positive driving connection between the hand crank and the load for lowering the latter as well as for elevating it. In this instance, the motor 31 is connected through a pinion 32 with a gear .33 on a worm shaft 34, the latter being suitable journaled at 35 in the housing. A worm 36 on the shaft 34 meshes with a worm wheel 37 loosely mounted upon a shaft 33 also suitably journaled in the housing, and this shaft has keyed thereto a driving head 39 which is adapted to be operatively connected with the worm wheel 3'7 through the medium of keys 41, 41, which as illustrated in Figs. 9 to 11, inclusive, are adapted to be inserted in oppositely arranged recesses 42 in the head 39 and in the worm wheel whereby these two last-named elements are held against relative totation Under these circumstances, actuation of the worm wheel from the motor necessarily results in a rotation of the shaft 38.

.As shown in Fig. 11, each of the keys 41 is provided with a, projecting flange 43 at one end which overlies the peripheral edge of the substantially circular driving head 39, and the keys are adapted to. be held in position in the recesses 42 by means of tap bolts 44 which pass through an aperture 45in the flange and into a tapped hole in the periphery of the driving head 39. Ashereinafter set forth, the keys 41 are adapted to be withdrawn from their recesses to break the operative connection between the driving head 39 and the worm wheel 37, and a tapped hole 46 is provided in the outer end: of each of the keys to receive the tap bolts 44 when the keys are withdrawn to prevent accidental misplacement and loss of the bolts under these circumstances.

As shown in Fig. 8, the shaft 38 carries a pinion 47 which meshes with a gear 48 on a main drumshaft 49 of the Windlass. In this instance, the Wildcats 51 and 52 are journaled directly on the projecting ends .of the shaft 49 and are adapted to be locked thereto through the medium "of pins 53 slidably supported in driving heads 54 keyed to the shaft 49, suitable adjustable means intheform of cams 55 being provided to advance' and retract the pins 53 in a manner previously described in connection with the embodiment of my invention illustrated in Fig. 1. Each of the Wildcats is provided with a brake 56 actuated through the medium of a hand lever 57. In this instance also bearings 58 for the shaft 49 are provided upon the base outwardly of the ' wildcats 51 and 52 and intermediate the said wild cats and the drums 59. The shaft 49 is also supported in bearings 61 in the housing.

As illustrated in Figs. 7 and 8, the'gear 48 meshes withan idler gear 62 suitably mounted in the housing, this gear in turn meshing with a pinion 63 secured to a shaft 64 in the housing, the projecting ends of which are adapted for reception of a ratchet crank for hand operation of the windlass. When hand operation is required, the pins 41 are withdrawn from the recesses 42, which breaks the connection between the worm wheel 37 and the shaft 38. Actuation of the shaft 49 in either direction may now be 'sirab'le feature, particularly where the apparatus is employed on the smaller types of boat. By mounting the motor as described, the necessity for a motor shaft coupling is entirely avoided, which constitutes a material improvement in this type of apparatus. The Windlass also provides. agear reduction between the hand lever and the actuated parts which greatly facilitates the hand operation; and-a-further feature'of advantage. is the simplicity of conversion to either hand or motor operation as required.

7 There may be further modification without departure from the invention as defined in the a pended claims. I

I claim: r

1. In a Windlass, the combination with a drum shaft, of a jack shaft paralleling the drum shaft, gearing connecting said shafts, an overrunning clutch comprising interlocking elements, "one. of said elements being secured to the jack shaft while the other is journaled thereon, a worm wheel associated with the last-named of said elements, a worm shaft having a worm in mesh with the worm wheel, a motorshaft paralleling the worm shaft, means operatively connecting themotor and worm shafts, and a crank shaft operatively connected with the jack shaft. Y

2. In a Windlasathe combiation with a. rotary drum shaft, a motor for actuating said shaft, 1 5 and transmission gearing between the motor and said shaft, said gearing comprising an intermediate shaft, a gear element loosely mounted thereon and connected Withthe motor, a driving head fixed to said intermediate shaft, detachable means forinterconnecting the said gear element with the driving head, and, meansproviding for manual actuation of the drum shaft when said its iio

gear element and driving head are disconnected.

3. In a Windlass, the combination with a rotary drum shaft, of a motor for actuating said shaft, transmission gearing connecting the motor with the shaft including an intermediateshaft,

a gear wheel loosely mounted on the intermediate shaft and connected with the motor, a '130 driving head fixed to said intermediate shaft, said driving head and gear element. having oppositely arranged recesses, and pins adapted for insertion in said recesses to operatively connect the gear elementwith the driving head, said pins being detachable to break the connection between said elements, and means providing for manual actuation of the drum shaft'when said pins are withdrawn from the recesses.

4. In a Windlass, the combination with a rotary drum shaft, of a gear fixed to said shaft, a jack shaft, a" pinion carried by the'jack' shaft and meshing with said gear, a worm wheel journaled on said jack shaft, and an overrunning 1 clutch for connecting said worm wheel with the shaft, a worm shaft having a worm meshing with said worm wheeLa motor, and means for connecting said motor to the worm shaft, and means for actuating the drum shaft independently of the motor including a manually-operable pinion meshing with said jack shaft pinion.

5. In a Windlass, the combination with a housing, of a drum shaft journaled in said housing, a gear fixed to said drum shaft, a jack shaft, a pinion on said jack shaft meshing with said gear, a worm wheel journaled on said jack shaft, and releasable clutch means connecting said wheel with the shaft, a worm shaft having a worm meshing with said worm wheel, a motor operatively connected with said worm shaft, and means for operating the drum shaft independently of said motor comprising a manually-operable shaft journaled in the housing and available for operation from either side of the latter, and gearing connecting the last-named shaft with said drum shaft gear.

6. In a Windlass, the combination with a rotary drum shaft, of a motor for actuating said shaft, transmission gearing between the motor and said shaft, said gearing comprising an intermediate shaft, an overrunning clutch comprising interlocking elements, one of said elements being secured to said intermediate shaft while the other is journalled thereon, one of the gears of said transmission gearing being asso ciated with the last named of said elements, and

I 3 manual means operatively connected with said intermediate shaft providing for manual actuation 'of said drum shaft independent of said motor.

'7. In a Windlass, the combination with a housber secured to said shaft intermediate said drums,

said member carrying one or more reciprocable pins, a series of apertures provided in said sec- .ond mentioned drum adapted to register with said pins, and a cam member operably connected to said pins and adapted upon movement thereof to actuate said pins into locking engagement with said second drum to thereby operatively connect the latter with said shaft. 7 Y

CHARLES V. KOONS.

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