US1663431A - Draw works - Google Patents

Description

March 20, 1928.

H. B. ZIEGLER DRAW WORKS Filed Auz. 8, 1925 '3 Sheets-Sheet 2 B. Zzgkmwm ATTC RN EY WITN March 20, 1928. 7 1,663,431

a H. B. ZIEGLER DRAW WORKS Filed A111. 8, 1925 3 Sheets-Sheet 3 H5, ZZZ fly?" VENTOR WITN W ATTORNEY Patented Mar. 20, 1928,

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HAROLD 3B. ZIEGLEB, 01* DUNCAN, OKLAHOMA.

DRAW WORKS.

7 Application filed August 8, 1925. Serial No. 49,046.

.drums and means for driving the drums either separately or jointly at varying desired speeds in accordance with the speed and power required in the drilling operaa tion, the said driving means being under the instant control of the operator so that less delay will be occasioned in the drilling than is common with ordinary devices for a similar purpose.

A further object is the provision of a draw works with twin drums having the ends of the pull line attached thereto and means for locking either of the drums on a common shaft whereby the line on the locked drum is employed as a pull or working line and that on the other drum as a dead line, means being provided for holding the last mentioned drum from turning means bein further provided for locking both of the rums on the shaft, whereby both ends of'the line may be used as a pull or fast line, while means, under the immediate control of theoperator, is provided for imparting varying desired spleedsto the drum carrying shaft.

A furt or object is theprovision of a draw works having twin drums thereon and on which the res ective ends of the lines or cables are secure and inwhich said drums are susceptible to a power range of a great number of speeds at the will of the operator without delay in the operation; wherein the drill line may be easily fed off of one onto the other drum so that well spooled lines are at all times insured and thereby prolonging the life of the line, and further wherein both ends of the line maybe pulled onto one drum, baring the other for the sand line and using an idle pulley in the traveling block for the crown pulley.

A still further object is the provision of an apparatus for this purpose in which friction between cooperatingparts is reduced to insure the longer life thereof and as a consequcnce enablingthc operator to use a lighter and less expensive traveling block with equal efficienoyijand further wherein the rig, while of a" comparativelysimple construction is properly balanced without in- -77 of Figure 5.

creasing the size or adding to the weight of the parts thereof.

To the attainment of the foregoing, and many other objects which will present themselves as the nature of the invention is better understood, reference is to be had to the drawings, in which there is illustrated a satisfactory embodiment of my improvement as it now appears to me, it being understood that the said drawings are merel illustrative and that I may resort to sue changes therefrom as fall within the scope of what I claim.

In the drawings I Figure 1 is a side elevation of a draw worksin accordance with this invention.

Figure 2 is a sectional view on the line 2 2 of Figure 1.

Figure 3 is a sectional View on. the line 3-3 of Figure 2.

Figure 4 is a sectional view on the line 44 of Figure 1.

Figure 5 is a sectional view on the line 5-5 of Figure 2.

Figure 6 is a' detail sectional view throu h a portion of the brake'band operating Inee anism. Figure 7 is a sectional 'view on the line Figure 8 is a detail perspective view looking toward one end of the body member of one of the drums.

The inside head boardof the frame of my improved draw works is indicated in the drawings by the numeral 1. The end jack posts are indicated by the numerals 2, and the central jack 0st by the numeral 3. Journale'cl in suite le bearings in the jack posts there is the line shaft 4. The line shaft has on its ends the usual cat heads 5.

Fixed on the line shaft 4, inward of the jack posts 2, there are sprocket wheels 6 and 7 respectively. The sprocket wheel 6 is larger than the sprocket wheel 7, the said wheel 6 carrying 13. teeth, "While the sprocket wheel 7 carries 11 teeth.

Loosely arranged on the line shaft there is another sprocket wheel 8. This wheel8 is held from longitudinal movement on the shaft in one direction by the contacting engagement thereof with a sleeve 9 that is fixed on the same line shaft. The sprocket wheel '8 has trained therear'ound an endless chain lid In addition to the sprocket wheels above described, there is freely mounted on the shaft between the left hand jack-post -2 and the central post 3 of the frame, two other sprocket wheels, indicated by the numerals and 11, respectively. The sprocket wheel 10 is of a materially greater diameter than the sprocket wheel 11, and both-of these wheels have trained therearound chains that are connected to the engine, (not shown). The sprocket wheels 8, 10 and 11, have outwardly extending hubs 12, 13 and 14, respectively. The hubs have their outer faces notch d for-engagement with lugs 15, respectively formed on the faces of slidable clutch members 16 1 7 and 18, respectively. The slidable cliitc h members are mounted in splines on the line shaft, and are cylindrical in cross section, with peripheral grooves in which are seated ring members 19 that are straddled by the forked ends of levers 20, 21 and 22, respectively. Each of the rings 19 is provided with oppositely disposed outwardly directed studs that pass through elongated slots in the forked arms of the levers. The lever 20 is pivot'ally supported on a bracket 23 secured on the inner face of the right hand jack post 2, while the levers 21 and 22 are pivotelly suspended from the head board 1'. The levers 21 and 22 are pivotally' connected to a rod 24, the outer end of'the rod, in turn, being pivoted to an operating lever 25 which depends from and is pivotally secured to the head board 1. The swinging of the operating lever 25, in one direction will cause the lug 15 on the clutch 18 to be received in the notched hub 14 of the sprocket wheel 11, this swinging of the lever swinging the clutch member 17 farther away from the hub 13 of the sprocket wheel 10.. A reverse swinging of the lever 25 will bring the clutch member 17 into clutching engagement with the hub 13 of the sprocket wheel 10 and move the clutch member 18 not only out ofbut a distance away from the notch in the hub 14 of the sprocket wheel 11. lin this manner it' will be noted'that a confusion in clutching the sprocket wheels to the line shaft will he obviated. The lever 20 is centrally pivoted to the bracket 23 and has loosely connected to its upper and outer end a rod 26. The rod 26 has its outer end provided with s )aced openings through any one of which there is passed 'a pivot that also passes through "the end of an operating lever 27. The lever is pivoted to the head board 1 but has its handle disposed adjacent to that of the operating lever 25. The swinging of the lever 27 in one direction will move the clutch block 16 to lock the sprocket wheel 18 on the line shaft and the swinging of the lever in an opposite direction releases the clutch 16 andfrees the sprocket wheel.

Journaled in suitebleibearings below the master line or drive shaft 4, on the o posite sides of the posts on which the bearings for the said line shafts are secured there is a driven or drum shaft 28. Loosely mounted on the shaft 28, directly inward of the end jack posts 2, there are sprocket wheels 29 and 30, disposed in alignment with the respective sprocket wheels 6 and 7 on the shaft 4. The sprocket wheel 30 is materially larger than wheel 29 and has 36 teeth thereon while the sprocket wheel 29 is provided with 27 teeth. Trained around the sprocket wheels 6 and 29, there is an endless chain '31, and likewise trained around the sprocket wheels 7 and 30, there is a similar-chain 32. 8d Suitable meansare provided for holding the sprocket wheels 29 and 30 from longitudinal movement on the shaft 28.

The sprocket wheels 29 and 39 have their inner or confronting ends provided with 85 hubs having clutch surfaces 33 and 34, respectively. These clutch surfaces are designed for engagement with clutch surfaces on slidable blocks 35 and 36, respectively, and the said blocks are mounted in splineways on the shaft 28.- The clutch blocks or members 35 and 36 are round in cross section, and are provided with peripheral grooves in which there are seated ring members 37 and 38, respectively. These rings are straddled by the forked ends of levers 40 and 41, respectively. The rings are provided with oppositely disposed outstanding lugs that arereceived through slots in the arms at the forked ends of the said levers 40 and 41. p

On the base 42 that supports the post 2 and 3 there are secured upstanding brackets 4-3 and 44-, respectively. Eaclf'bra'cket has a widened laterally extendin head 45, and to the laterally extending portion on one end of each of the heads'there are pivoted levers 40 and 41. The lever 40 has an angle end to which is pivoted a link 45. This link 45' in turn is pivotally secured to a foot pedal at which has one end pivotally supported on the base 4-2. To the lower end of the lever 4-1 there is pivotally secured a rod 4-7 directed toward the left hand side of the frame. and this red is pivoted to the offset end of a crank shaft 4-8 which is journaled in a suitable hearing as. and has one of its ends extended angularly to provide a foot pedal 50.

Pressure on the foot pedals lid 46 59 willactuate the levers 40' and 4&1 to throw the clutch blocks 35 or 36 into clutching engagement with the clutch snrfacescn the sprocket wheels 29 or 39., and thereby lock the 125' either one of the said sprocket wheels shaft 28.

Arranged for the shaft 28. and

These clutch blocks have their clutch surfaces directed toward each other, being disposed opposite t5 the clutch surfaces on the blocks and 36. The clutch blocks 51 said levers -55 and 56 which "are-pivotally secured to the inner lateralextensions of the heads of the brackets 43 and 44, the

lever 56 having pivoted to its lower end a rod directed toward the left. hand jack post 2, the said rod having its free end pivotally secured to an, oflz'set or crank shaft, similar to the shaft 48. This crank shaft is also journaled in suitable bearings on the base 42 and has an outer angle arm terminating in a foot pedal 57. By depressing'the foot pedal the clutch block 52 will be moved inwardly on the,shaft'48. The lever 55 has pivotally secured to its lower end a link 55" that is likewise connected to a lever 58 that is journaled in a suitable bearing in the base 42. The lever 58 has an offset end that terill? this foot pedal will swing the lever 55 to move the clutch block 51 toward the center of the shaft 28v The rings 37 and 53, as well as the rings 38 and 54, are provided with aligning openings, and through these openings there are passed bolts 60. On the-ends of the bolts there arescrewed nuts 61 which contact with helical springs 62 on the outer portions of the said bolts. The springs 62 also contact with the rings 53 and 37,thereby forcing the opposite] disposed pairs of clutch blocks towar each other and moving-the said clutch blocks to unclutching positions.

0n the shaft 28 there are freely ournaled twin drums, each being broadly indicated by the numerals 63 and 64, respectively. As both of the drums are of a similar construction, a detailed description of one may be taken as equally applicable to the other. Each drum has its body portion in the n.- ture of a tube 65 and each body 65 is centrally cored out to provide an oil reservoir 66. The body is provided with a suitable oil inlet, and the oil is delivered onto roller bearings 67 that are seated in annular grooves provided adjacent to the ends in the bore of the tube. llhe outer and reduced ends of the tubes 65 have their sides flattened for reception in similar openings in the heads 68 and 69 for the said drum. The heads 68, which are arranged at the confronting ends of the said drums 63 and 64, are in the nature of discs, and each of these discs is provided with an annular series of equidistantly spaced openings K0, the purpose of which will be presently apparent. The outer heads 69 are also in the nature of discs, but are provided with peripheral flanges 71. The discs providin the heads 69 proper have secured on their inner faces castings whose body portions are in the nature of discs 72; Each of the body portions is formed with an outstanding hub 73 provided with an inwardly directed flange 74 that confronts with the outer end of the tubes 65 of the said drum. The bore of the hub coincides with the shape of the ends of the tubes 65 received thereinr The hub 73 is provided with oppositely arranged notches 75, the outer walls, of which are inclined. These notches are designed to receive therein the lugs or projections 7 5' on the respective slidable clutch blocks 51 and 52, when either of the drums 63- or 64 is to be locked on the shaft.

The flanges 71 of each of the drums 63 and 64 have arranged therearound brake bands 76 and 7 7, respectively. One end of each of the brake bands is anchored to a rod 78 whose ends aresupported in standards 7 9 securedto andarising from the base. The second end of each of the brake bands is looped and through this loop there is received thecranked portions 80 or 81, formed on shafts 82 and 83, respectively. Byreference to Figure 6 of the drawings it will be noted thatthe shaft 82 has its straight por tion's hollow so that the shaft 83 passes therethrough and finds a bearing therein. The bearings for the shaft 82 are indicated by the numerals 84, and these bearings may also support the uprights 79. F ixedly secured to the ends of the shafts 82 and 83, at points adjacent to the left hand jack posts 2, there are upwardly directed levers 85 and 86, respectively. Thus by operating either of the levers the brake bands of either of the drums may be tightened to regulate the speed of the said drums when the same have been clutched to the shaft 28.

The heads 70 of the respective drunls 63 and 64 are arranged at the opposite sides of the central post 3 of the frame, and fixed on this post, directly above the boa ring thereon for the shaft 28 there is a housing 87. The bore of this housing is rounded, and in the said bore there is freely arranged a cross sectionally rounded bolt 88 having beveled ends and which is provided with a stem 89 terminating in a head 90. The stem 89 is normally received in the lower portion 91 of a substantially V shape notched slot 92 inthe outer face of the'housing 87. The stem 89 passes through an opening in a bar 93 which has an upper slotted portion 94 throughwhich there is passed a headed pin 95 that anchors it to the post The upper therethrough and through this slot there is 8000 feet, (adepth as yet unreached). The.

passed a headed pintle 99 secured in the bracket on one face of the central post 3. By swinging the lever 97 downwardly the stem 89 of the bolt 88 will be brought out of the notch 91 and arranged in the slot 92. By exerting a push or a pull on the lever 97 the bolt 88 may be moved into one of the openings 70, on either of the heads 68 of the drums 63 or 6 1, thus locking one of the drums from turning. The reverse movement of the lever 97 will cause the stem 89 to travel in the slot 92 and to be again received in the notch 91, thus unlocking the drum.

The engine driven sprockets 10 and 11 onthe line shaft 1 are butted back to back and held in place by the splines for the clutch blocks 13 and 14. "The sprocket 10 is larger than the sprocket 11 as shown in Figure 1. The clutch blocks 13 and 14 are alike and interchangeable, and as above stated, it is impossible to engage one clutch assembly Without first disengaging the other. The clutch blocks on the drum shaft 28 are likewise alike and interchangeable and being arranged in pairs which are back to back they must ride in the proper direction either to clutch or unclutching positions. The drums, as previously stated, are also alike and are interchangeable. The inside drum heads are preferably formed of semi-steel. The U or crank shafts associated with the brake bands eifect a positivegripping'of the said bands with the drum heads. The bands have as bestos linings to insure the positive gripping engagement thereof with the brake heads, and the levers for the brake shafts or rods are screwed into heads which are arranged around the said rods, (see Figure 6.)

The operating engine for the device has not been illustrated, but in Figure 1 of the drawings the numeral 101 designates a wheel for operating the engine throttle and the numeral 102 indicates a rod, which when actuated, will reverse the turning of the engine.

"We will suppose, for example, that the operator has 8 lines strung up and is drilling bit is dull and must be pulled out. The operator pulls the rod 102 and reverses his engine. He, then pushes clutch lever 27 to bring the clutch block 16 out of clutching onfee gagement with the sprocket wheel 8 connectedn-"ith the rotary machine. He next pulls on lever25 tocause the clutch block 15 to engage with the clutch surface 13 of the engine sprocket wheel 10 and steps on the pedals 46 or fiddepending upon which drum 83 or 64 he wishes to first use. At the same time he pulls the lever for operating either the clutch block 51 or 52, kicking one of drums to the shaft and likewise locking the other drum that is to be held stationary, byactuating the lever 9?. By bringing the clutch 36 into engagement with the clutch surface on the sprocket wheel 80 he obtains a slow speed. 'With full steam ahead he is pulling with eight lines in low gean.

After pulling 1000 feet on the pipe theopfeet he may reverse this procedure, again by. dcclutching the sprocket wheel 11 and clutching the sprocket wheel 10 on the shaft. The drum is then driven .by the sprocketchain 31. At another 1000 feet the drum is caused to revolve at a faster speed by deelutching the. sprocket wheel 10 and clutching thesprocket wheel 11 on theshaft 4, the drum shaft being still driven by the sprocket chain 31. The pipe is new half out of the hole.

At this point the operator is safe to use the two drums, which have the respective ends of the lines or cables secured thereto. When using both drums the speed will be doubled, and-by operating the clutches 16 i and 17, in a manner asabove described, four separate and distinct speeds may he imparted to the two drums. f i

In the first mentioned operation, that is when only one drum is driven, four different and distinct speeds are imparted to the drum, and at the second operation, that is when the drums'are locked togethbr on the drum shaft four separate and distinct speeds are imparted to the locked drums. Thus a great number of separate and distinct speeds of the drums are provided for.

The advantages of my improvement over a similar construction will, it is believed he till perfectly apparent to those skilled in" the art to which this invention relates, and while it have illustrated a satisfactory embodiment of my improved device my features of i11 vention are capable of extended application and I do not wish to be limited to the structure herein shown and described. It

is lo be understood that the clutch blocks 16, 17 and 18 on the line shaft are alike and brakes are for the purpose of controlling the '1 speed of rotation of the drums .when the said drums are unclutched from the shaft 28. The splines under the clutch blocks 52, 86,

51 and 35 offseteach other so that when the clutch blocks are disengaged they will butt hack to back against themselves and against the spline ends. The brake band crank shafts 82 and 83, should rig up 9 inches back of standards 79 (Figure 1)., while the top ends of the brake levers and 86 come toits gether as disclosed by the drawings so that the operator may actuate them simultaneously with one hand as will be apparent.

Having described the inventi0n,,I claim 1. In a draw works, the'combination of a frame, a shaft, two drums freely journaled on the shaft, said drums having their confronting heads provided each with an annular series of apertures, a bolt member mounted in the frame and movable into one of the apertures of either head for locking the drum thereof against movement, said bolt being normally in inactive position, clutching means onthe shaft, operating means for said clutching means to cause the same'to engage with either of the drums to lock one or both ,of the drums to the. shaft, and means for revolving the shaft at varying predeteu mined speeds to impart like speeds to the drum or drums clutched to the shaft.

2; In a draw works, the combination of two drums, freely journaled on a shaft, and a cable having its ends secured on each of said drums,- said drums having their confronting heads provided with spaced circumferential apertures, a housing having a notch between said heads, a bolt member in the housing having a stem projecting through the notch, a lever operated means associated with the stem, for causing the latter to ride oneither end angle walls of'the notch to bring the bolt into one of the openings on either head to lock the drum thereon against movement on the shaft, clutch means on the shaft engaging the outer faces of the drums, pedal operated means for actuating said clutch,means for locking one or both of the drums on the shaft, and means for revolving the shaft at varying predetermined speeds for imparting like motion to the drum or drums clutched thereto. 3. In a draw works, a frame, a drum shaft journaled on the frame, twin drums on the drum shaft, means between the confrontin heads of the drums engageable with said brake bands and the lever actuating means for operating the. crank shaft.

In testimony whereof I afiix my si nature. HAROLD B. ZIEG ER.

heads for locking either of the drums to the

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