US2146622A - Sweep operated windlass - Google Patents

Description

' Feb. 7, 1939. s. CARLOV swEEP OPERAT'ED WINDLAss Filed June 21, 1937 2 shee1s-sneet 1 s/MON CA R1. o

S. CARLO lSWEEP OPERATED WINDLASS Feb. 7, 1939.

Filed June 21, 1937 2 sheets-smelt 2 smo/v cARLo BHW,

Patented Feb. 7, 1939 PATENT OFFICE Y 2,146,622 swnEP OPE-RATED WINDLASS lCardo, kjMa yagiezg R. Applieatin runen, waneer-iai 1w. 149,526

2 marins-Qv4 (o1. 2541-182) This inventionrltes' t0 f' Crane Hoist d for its object the production of a simpley and efficient crane hoist and means for actuatigtlie same which will facil'italtetle lifting'of sugar cane :and other heavy' iriateriailr or objects from one i drum mechanism Vwhich is constructed for operation by animal power, such as through the medium of a horse, mule, or other draft animal, the mechanism being so constructed as to facilitate the control of the drum bya single operator.

Other objects and advantages of the present invention will appear throughout the following specicatio-n and claims.

In the drawings: l

Figure 1 is a side elevation of the hoist and actuating drum associated therewith;

Figure 4 is a sectional View taken on line 4 4 y of Figure 2;

Figure 5 is a horizontal fragmentary sectional view taken on line 5 5l of Figure 4;

Figure 6 is a vertical. sectional view taken on line 6 6 of Figure 3';

Figure 7 is a transverse sectional view taken on line 1 1 of Figure 5;

Figure 8 is a bottom plan view of,v the clutch, the squared shank of the shaft which supports the clutch being sho-wn in transverse section. j

By referring to the drawings it will beseen that I il designates a standard whichy is braced suitably by meansof guy` Wires or cables II se-y cured to the top thereof, the standard 'I0Y being mounted in the ground in a conventionalmanner and rotatably supporting a lifting beam" llwhich lifting beam I2 is pivotally connected to a rotat-r ing supporting collar I3 of the'con'vent'ional type`V The upper end of the lifting beam' I2 isl braced by means of an adjustabler cable I 4j'where'byvthe dfstance of the outer end of the'be'z'lrnV I"2"with re-4 spect to the top end of the standard I may be regulated, this cable I4 being adjustably connect ed to a collar I at the upper end of the standard I, as at I6. A block and tackle structure I1 of the conventional type is associated with the beam I2, as shown in Figure' 1, and carries an operating cable' I8lv which passes over a pulley I9 earned by the standard IB, and also a pulley Z''located near the bottom ofthe standard il), the cable i8 being then 'wound around the actuating drum mechanisr'n indicated yin' general by the letter A, shown in Figure l. The article or bundle to be lifted, indicated by the letter B, may be secured in the conventional manner to the hook C o f the block and tackle structure I7, as shown in Figure l1.

The drum structure A comprises a base 2l and a top 22" which are suitably connected and held in spaced relation by means of uprights or standards 23,24 and 25", which may be cast integral therewith, preferably three standards being einployed. 'The base 2I and top 22 are preferably of a T-shape formation, the standardsy 23, 24 and 25 being 'located between the ends of the' sub stant-ially AI'Afslrlape vbase ZI and topv` 22, these standardsy 2 3, 24 and 25being preferably T-shape in crossl section, as shown in FigureV 2.

Thekbas'e 2Iwis provided with a journal 26 arranged centrally thereof, which supports a suitable bearing 21 in which is journaled the lower end 28 of the shaft 2S, the4 shaft 2'9 carrying a drum reel 30 by which the cable I8, previously described,` is wound. This drum reel 3i!` is provided with annular flanges 3| to facilitate the holding ofthe cable I8 upon the drum reel. This drum reel 30 is provided'with radiating fins or spokes 3'2 eit'ending from the hub portion 33 to the rir'n portion 34, and a curved oil feeding passagel 35l is' formed in one of the iins or spokes 32,

as shown in Figures l` and 5 to facilitate the feed ing of oil tothe bearingface of the shaft 29,with in the hub 33. This drum reel 3l! carries anrupstanding annular flange 36 upon its upper end around which is tted a brakey band 55, hereinafter described. The shaft 29 is provided with a squared shank '36 vlocated above the hub portion 3'3 of the reel 30 upon which squared portion 3'6"V is mounted for vertical sliding movement a clutch 3f! having notches, in which notches 38 are adapted to fit the upper edges of the uns or spokes 32v ofthe drum reel 30. When the clutch 31 is in engagement with the fins or spokes 32 the drum reel 30 will bel locked for rotation with the shaft 2-9'. Anoperating lever 40 is pivotally mounted, as at 4I', upon the top 22, as shown in Figure 4.

and is provided with a suitable conventional means for engaging the clutch 31 whereby the clutch 31 may be lowered and raised to and from an engaging position as the operating lever 4U is lowered and raised by the operator. The upper end of the shaft 29 is journaled as at 42,

in a suitable bearing carried by the top 22 and YYa draft beam supporting socket plate 43 is keyed A brake band controlling lever 45 is pivotallyv connected, as at 41, upon the top 22 through the medium of the journals 48 which are formed as an integral part of the top 22 such as is shown in Figure 6. The lever 46 engages a vertically extending rack 49 carried by the standard 23, which rack is engaged by a suitable tooth D carried by one face of the lever 46, the rack 49 having a shield 5| to hold the lever 45 against accidental lateral displacement but allowing the lever to be swug laterally for a sufficient distance to move the tooth 50 into and out of engagement with the rack 49. The brake lever 46 is provided with a depending arm 52 which is connected to a yieldable connecting link 53 of the conventional type which is secured to one end of the brake band 54 as shown in Figure 3. The brake band 55 is anchored, as at 56, to the standard 24 in the manner shown in Figure 2. In order that the drum reel 30 may be locked in a set position, a plurality of ratchet teeth 51 are formed upon the top of the reel 30, as shown a in Figure 6, which ratchet teeth are detachably engaged by means of a dog 58 pivotally mounted upon the top 22. The dog 58 is provided with an extending arm 59 under which is adapted to be swung a pivoted supporting arm 6B which is pivotally secured, as at 6l, tothe top 22. When it is desired to release the dog 58 the arm 65 may be swung from under the arm 59 permitting the dog 58 to freely swing out of engagement with the ratchet teeth 51 and allow the drum Yreel 30 to rotate for unwinding the cable i8 therefrom, when desired.

The operation of the device is as follows:

The draft animal is attached to the whiflle tree 45 carried by the. beam 44 and travels in the direction of the arrow shown in Figure 2. This will cause the cable i8 to be wound upon the drum reel 3B when the clutch 31 is in straddling engagement with the ns or spokes 32 of the reel 30. When the cable has been wound to the suicient amount to elevate the load B to a desired heighth, the arm 60 may be swung under the arm 59 of the dog 58 to hold the dog in engagement with the ratchet teeth 51 on the upper face of the drum reelV 3D, in this way locking the drum reel 3D in position. When it is desired to allow the cable I8 to unreel, the dog 58 is released from the ratchet teeth 51 by swinging the arm 69 to a disengaging position and the speed at which the cable I8 unreels may be regulated by the amount of pressure applied to thebrake band 55 by a downward swinging movement of the brake lever 4B. The rotation of the drum may be stopped at any point by applying the brake band 55, as will be obvious. When it is desired to release the drum reel 34, the clutch operating lever 4l] is swung downwardly, thereby raising the clutch 31 out of clutching engagement with the spokes or fins 32.

From the foregoing description, it will be seen that a very simple and eflicient means has been provided for controlling the operation of the drum reel whereby the lifting mechanism and beam l2 may be regulated without the necessity of employing an expert attendant, the drum reel being at all times controllable through the operating levers 40` and 46, the power being devised through the medium of a draft animal.

The present device has been found particularly advantageous in lifting sugar cane from a cart to a railroad car or in unloading a car or other transporting vehicle wherein mechanical power such as steam, electricity, or other motive power is not available, the present device providing a very economicalv asA well as eflicient hoisting means.

It should be understood that certain detail changes in the-mechanical construction may be employed without departing from the spirit of the invention, solong as such changes fall within the scope of the appended claims.

Having described the invention, what I claim as new is:

l. A drum mechanism of the class described comprising a frame embodying top and bottom spaced members, la shaft vertically mounted through said top and bottom members, a drum reel rotatably mounted upon said shaft, a clutch fixed against rotating movement upon said shaft and mounted for vertical sliding movement thereon, said drum reel having radiating fins, said clutch having notches into which said fins are .adapted to t for locking said ydrum reel in engagement with said clutch and shaft, an operating lever for moving said clutch into and out of clutching egagement with said drum reel, means carried by said shaft for rotating said shaft, said drum reel having ratchet teeth formed upon its upper face, a dog, a pin pivoting said dog upon said frame in a position to engage said ratchet teeth, said dog having an angularly extending arm, a pivoted locking arm carried by sai-d frame and adapted to be swung under said last mentioned arm for holding said dog in a locked position, a brake band for said drum, and an operating lever for said brake band pivoted upon the pin carrying said dog.

2. A drum structure of the class described comprising a frame having substantially T- shaped top and bottom members and vertical uprights holding said members in spaced relation to each other, .an upstanding shaft carried by said frame at the intersection of arms of said members, a drum rotatably mounted upon said shaft, a clutch carried by said shaft and mounted for sliding engagement with said drum for locking said drum upon said shaft, an operating beam carried by said shaft to which a draft animal may be attached for facilitating the rotation of the shaft, an annular ratchet carried by said drum, a dog pivoted to one arm of the top member and engaging said ratchet, a brake band for said drum, an operating lever for said brake band pivoted to the said arm and extending towards another arm, and a rack for said lever carried by the last mentioned arm and its cooperating upright.

lSIMON CARLO.

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