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Aug. 30, 1938. 2,128,575 E. ROBERTS DRIVING MEANS FOR CENTRIFUGAL MACHINES Filed Jan. 31, 195s 16 5 Sheets-Sheet 1 - ílÍIlÍI I I l/lí‘zî’ _ â ¢ 1» i Aug. 30, 1938. _5, RQBERTS - 2,128,575 DRIVING MEANS FOR CENTRIFUGAL MACHINES Filed Jan. 31, 1936 3 SpeetS-Sheet 2 Aug. 3o, 193s. ' E. reoßlzre‘rsA , 2,128,575 _ ` DRIVING MEANS FOR CENTRIFUGAL MACHINES f Filed. Jan; 31, 1936 _ .8 . Q I_ Jl.9 „m„O_ uZ1 iZI A.,A com u7np .0„o o 3 .Sheets-Sheet 5 Patented Aug. 30, 1938 „ , I i UNITED STATES PATENT OFFICE 2,128,575 DRIVING MEANS FOR CENTRIFUGAL MACHINES ' Eugene Roberts, Hastings, N. Y., assignoi-.to The Western States Machine Company, Salt Lake City, Utah, a corporation of Utah ' Application January 31, i936, seria.; No. 61.335 v14 claims. This invention relates to new and improved centrifugal apparatus for use in the centrifuging of sugar and like materials, and it is intended to provide means for driving suspended gyratory (ci. ,21o-_7.1) adaptable for various conditions of installation. I have found _that the speed and acceleration 0f ggyl‘atory centrifugals may be greatly increased while renderingtheir operation entirely safe and 5 centrifugals of the type used in sugar refineries satisfactory ffrorn both an economical and a me- 5 at considerably higher speeds than> has heretofore been the practice, while at the same time enabling ar much quicker ratev of kacceleration which .I have found to Vbe an important factor 10 in the successful and practical operation'of high speed centrifugals for sugar and analogous work. Heretofore, under the best commercial prac- chanical point of view by providing a new ar rangement 0i powering, power transmission and coupling means intermediate a source yof power andthe basket spindles of several centrifugals. I have found also that an individual centrifugal l0 may be improved for flexibility of. installation and operation and for operation at high or low speeds, tice, sugar centrifugals employing the prevalent with or without unusually rapid acceleration to 40" basket have been operated at a top speed such speeds, by providing it with an improved 15 of from 1100 to 1200 R. P. M. either by means driving unit in accordance with my invention. of a quarter turn belt passing over a pulley on Apreferred general arrangement of apparatus the basket spindle or by means _of an overhead electric motor directly connected to the spindle. When charged with its full load, each centrifugal 20 Weighs approximately> one ton, and even at the speeds above mentioned it is necessary in the case of the rdirectly connected motor driven centrifugal to use avery much oversize motor to eiîect satisfactory results. A well designed cen25 trifugal canbe accelerated slowly to a speed under inwhich the present» invention is embodied com prises a horiaonal line shaft positioned above or -1200 R. P. M.;by means of an electric motor con- suming approximately 20 horsepower, but to obtain the desired higher rate of acceleration would require a consumption of power rising as high as 30 60 horsepower, with peak power loads much higher under certain conditions. In consequence of these requirements, motors must be built very much oversize, which means heavy additional eX- 15 adjacent a series ,of suspended gyratory cen trifugalmachines, each of which is independently 20 drivenfromthe same line shaft through apower transmitting mechanism, preferably a centrifu .gall-y actuated clutch, and an intermediate driv ing~ unit including a train of transmission gears. Oneof thel transmission gears lS Connected With a 2,5 rotatable Vdriving member which, in turn, is con- ’ nected Wlth'a 'pulley fOr 'the Clutch 01' With Other power.transmittingmeans. Anotheris secured to a vertical-non-.gyratory transmission shaft having añeX-ible but positivefdriving connection with the 30 underneath gyratory centrifugal shaft'or spindle. ’ ` A_n. important feature of this general'arrange ment iS. thalìzit 'permits SubSlìaIllìial DOWGI‘ SaVîngS pense and difficulties in installation and further35 more involves a wasteful expenditure of power. To raise the speed of the centrifugal still further and .quicken its acceleration would greatly aggravate the diaiculties incident to the use of directly connected electric motor drives. On the 4_0 other hand, any marked increase of speed and ac- in the OperatîOn 0f a Series 0f Celll'fl’ìîllgals'at high Speeds andwith rapid aßçelel‘alìioll t0 S11-Ch >35 Speeds. The Cycle 0f treatment 0f materials such as mixtures 0,.f. Sugar grains and syrup in vol-ves..braki-naunloading, reloadinsand acceler ation of some of the centrifugals of a series while others are spinning at Íllll $l3eed- During the 40 celeration with belt driven machines would require the use of wider, heavier belts which, in .view of >tlfieir being of the quarterturn type, are also subject to practical objections, and it would .45 `-il‘npose other severe operating requirements on such machines which are inconsistent with their braking, unloading and reloading stages of the CYClC, lâh?. Cerllêlîl'ffugal does not exert av Substantial drain 0n, ’GheRQWelî Soulîßa During. the accelera tion stage, however,- the DOWer per Gentlflfllgal rises abruptly to its lilighasl'l point, and it later 45 tapers‘down to a normal Vamount vafter f_ull speed .operating capacity. hasbeen attained.- My improved arrangement of A further important disadvantage of the appa- cen-trifugals, driving unitsand power transmitting »ratus heretofore used consists in the fact that meansr on a common line shaft greatly reduces „5_0 after Ithe vicentriiîugals are installed f_or a certain ythepo’we’r peak normallyrequired for acceleration 5,0 .type .of operation, it is ~extremely `diiìicult to var-y of each centrifugal, due to the Vstrong momentum ' their operation to any substantial extent. The ofthe line shaft ’and-heavy»4 parts revolving there apparatus has -no_t been ycharacterized by ñexi- withtogether with that of the severalfcentrifugals bility such „as I have found to be important for ¿Q5 @best Itp11messing operations, nor has itbeen readily of ay series which revolve in unison at highspeed while the acceleration takes place. 55 l2 2,128,575 In addition to the aforesaid novel .general arrangement of centrifugals and centrifugal driv ing means, my invention provides an improved pletion of the repairs, and this would mean much difficulty and expense in digging out the hardened massecuite before the centrifugals could be started ~ driving unit for connecting each of the centrifu gals with a source of power, which is of impor-v tance because of its usefulness in either a group drive or an individual driving arrangement. This in operation with a fresh batch of massecuite. These and other improvements will be particu >larly described in the following specification and improved driving unit comprises an enclosing will be defined in the claims hereto annexed. In the accompanying drawings is illustrated a casing which is accurately machined to provide a practical and eflâcient embodiment of. my im mounting for the essential moving parts of the provements, in which Fig. 1 is a small scale elevation showing the arrangement of a battery of centrifugal machines unit, including the train of intermeshing gears referred to above. A rotatable driving member is mounted within the casing and provided with an extension projecting outside of the casing for connection with another rotatable member, for example a pulley or shaft through which power is transmitted. A bevel vgear is keyed to this ñrst rotatable member. A transmission shaft is operated from a common sectional line shaft with angle to the axis of the rotatable drivingmember, a powering motor for the shaft located inter mediate of the group of centrifugals. 15 Fig. 2 is a vertical central section through the driving mehcanism of, a single centrifugal. Fig. 3 is a front elevation of the construction shown in Fig. 2. Fig. 4 is a detail cross section showing the cou 20 and this shaft carries a bevel gear in accurate mesh with the bevel gear ñrst mentioned. The transmission shaft has an extension which pro jects outside the casing and is positively and con mission shaft and the basket shaft, as well as the brake and the brake drum. Fig.'5 is an end elevation on the plane 5-5 of mounted within the casing with its axis at an pling between the vertical non-gyratory trans stantly coupled to the gyratory spindle of the centrifugal. In conjunction with the parts men tioned, the unit comprises suitable bearing mem bers within the casing arranged for precise align ment and smooth operation of these parts,l and Fig. 2 further illustrating the driving mount of the centrifugal. According to the specific construction and arrangement shown in the drawings there is pro the casing includes means facilitating attachment of the unit to framework above the centrifugal. By the use of a driving unit of this type sub stantial improvements may be obtained in cen trifugal operations. The Vsource of power, of 3 whatever nature, may be arranged to one side of sections are coupled together as shown at 2 by any suitable type of flexible transmission cou pling members, and each line shaft section is N) Cl v the basket spindle to provide a more satisfactory plant arrangement. The powering means may be changed without reconstructing the unit or the centrifugal spindle or intermediate couplings. 40 The unit may be moved and attached to the con ventional motor base for a directly-driven cen trifugal, or to any other suitable framework, without danger of misalignment of its moving parts and consequent diiiîculties, because a proper 4 Ul setting of the bearings, rotatable driving member, gears and'transmission shaft remains accurate and insures precise operation for an indefinite period." It may be constructed with any gear ratio appropriate to the power and speed of the 50 power transmitting means with which it is con nected and the desired speed of the basket, and it fully withstands the continual severe strains of rapid acceleration to high speeds and short oper atingv cycles. 55 A further improvement in driving construction resides in the construction of the line shaft in individual sections, one lfor each centrifugal mounted in its own individual bearings and ilex ibly coupled to adjacent sections, thereby per 60 mitting the removal of one shaft section without disturbing the other line shaft sections. Another feature of the present invention is the provision for driving the line shaft from a power ing _device located intermediate the series of centrifugals whereby the centrifugals on one side of the powering device may be maintained in normal operation, while a centrifugal on the other sidel may be removed for repairs or replacements withoutrstop‘ping the centrifuging of the masse 70 cuite or magma. 'This is an important feature of. advantage because should anV accident happen, which ordinarilyrwould require the stopping of the line shaft, the massecuite in the overhead mixer trough, which suppl iesl the centrifugals, might 75 become set or hardened. While awaiting the com vided a horizontal line shaft I, which is made in individual sections for each centrifugal, which 'g supported in anti-friction bearings contained in suitable housings or containers 3 and 4 provided with closure caps or covers 3e, lla. The housing 3 for supporting one end of a shaft section, the right hand end as shown in Fig. 2, is supported in a hollow casing 5 whose opposite sides are pro vided with annular bearing seat members 5b and 5C, respectively, for the insertion and re moval of anti-friction bearing elements. The casing 5 forms an upstanding hanger whose bot tom portion or bed 5aL is provided with means en abling it to be accurately positioned and bolted upon a bed plate 6, which is provided at its left hand end with an upstanding supporting bracket 6a on which the bearing housing 4 is secured. Thus each shaft section is supported near its opposite ends by supporting members project ing upwardly from a common bed plate which is mounted upon and secured to suitable longitudinal beams a and cross-beams b that are usually found in the framework of centrifugal apparatus be so neath the sloping overhanging portion of they mixer trough ofthe centrifugal apparatus, which Cil it is unnecessary to show herein as it is an old feature of sugar centrifugal apparatus construc tion. The casing 5 forms the enclosure and mount ing of a precisely machined and assembled driv ing unit which permits displacement of the power transmitting means to a point laterally of the centrifugal `and effects a positive connection be tween said means and the basket spindle such that severe strains of rapid acceleration and high speed operation on short cycles will not in terfere with the freedom of the spindle to gyrate and seek its own axis of rotation. This improved driving unit includes a rotatable driving member 70 which is keyedto a bevel gear inclosed within the casing and provided with a portion extend `ing outside the casing for attachment to the Vpower transmitting means, together with a verti cally positioned non-gyratory transmission shaft 2,128,575 provided with bearings and bea-ring seatsin parts of the casing structure and having a portion ex tending outside the casing for attachmentV to flexible coupling elements. intermediate the driv ing unit and the gyratory basket spindle, and an other bevel gear keyed to this transmission shaft 3 means of retracting links I 4, so that when the free ends of the arms Il are moved inwardly by the toggle links I2 fulcrumed to the sliding hub member I3 the shoe-carrying arms I5 are drawn inward, thus separatingA the friction shoes from the pulley rim. The lhub member is forced in and located in accurate meshing relation tothe wardly to effect retraction Iof the clutch shoes by bevel gear- iìrstk mentioned. The construction of the unit as embodied in the improved group driv meansv of a lever Il fulcrumed at Ila, whose upper end is forked to engage opposite sides of a collar I3a which is anti-frictionally mounted ron the 10 hub; I3 to permit it to resist rotation by reason of its engagement or connection with the fork portion of the arm VI. The lower end of the lever Il is provided with a toothed sector I8 meshing with a pinion I8a on the control shaft I9 which 15 carries a hand wheel I9a by which it can be op erated in starting'the machine and setting in ac lI) ing arrangement illustrated in the drawings is described in further detail below,> but it will be understood by personsskilled in the art. that de tails of construction employed in this particular arrangement are not essential to the invention 15 and may be varied within the scope of the claims. In the illustrated apparatusjthe casing 5 for each driving unit is provided with structure c0 operating with parts of a liquid cooled clutch pul ' ley forming an element of the powerA transmit 20 ting means for each centrifugal and> secured to the extended portion of the above mentioned ro tatable driving member. Outside of annular flange 5c is an- annular flange 1 integral with, or secured to, the casing` 5„ the opening' ofvthis 25 flange being considerably larger than the open ing in the flange 52 which it surrounds concen trically, to permit the projection through it of an annular flange 8'<1 forming, part of the hollow pulley 8, which is loosely mounted about the 30 shaft section I for free rotation‘thereon. The rim portion of the pulley 8, as well as the spider portion Bb, are both made hollow for the circu lation of cooling liquid which enters through a supply pipe 50‘ and whose outlet is through the 35 annular passage between the flange 5° of the cas tion, the automatic timing mechanism. disclosed in my pending application Serial No. 732,114, the details of which are not claimed herein but form, -20 in part, the subject matter of the said pending application. The spider of the clutch pulley 8 is secured to a rotatable driving member for the driving unit, in this embodiment an elongated sleeve or hub v 9 surrounding the shaft I and mounted on bear ing supports precisely positioned in the bearing seats 5b and 5c of casing 5. A large bevel gear 3G is splined to driving member 9 inside the cas ing 5 so that it rotates when the clutch pulley 30 is energized by engagement of the centri-fugally actuated clutch shoes I6 with the rim of the pul ley 8. Directly beneath the line shaft I is located the vertical non-gyratory transmission shaft 32 of cle orspil'l-way into which the cooling liquid flows each driving unit which carries at its upper end a smaller bevel pinion 3l intermeshing with the much larger bevel gear 30. This vertical trans mission shaft 32 is mounted in upper and lower after having performed its cooling function and 40 from which it may be drawn off and cooled for anti-friction bearings, accurately fixed within casing 5, for rotation abo-ut a constant axis, and it ing and the flange 8@ of thevrevoluble clutch pul ley. The space between the annular flange 'I and the adjacent wall of the casing forms a recepta= recirculation. This cooling of the pulley, how ever, forms no part of the present invention herein claimed and is claimed in a copending ap 45 plication, so that more detailed description there of is unnecessary here. Between the line shaft I and the driving unit of each centrifugal means are employed which may be controlled to establish power transmitting f50 is provided 4at its lower end with means for con necting it directly to positive butv flexible coupling elements for a gyratory basket spindle. Thus a »flange integral with the lower end of the.à shaft is connected to downwardly projecting clutch of coupling lingers 32a, and these are in terposed betwen similar’ñngers 33a of a coupling :member 5?, fastened to the projecting upper end of as well as to. establish a positive non-slipping the gyratory centrifugal basket spindle 40 inor der to connect shaft 32 and spindle 40 together. This coupling forms a positive drive connection between the non-gyratory transmission shaft 32 and the gyratory centrifugal shaft dll, which lat connection which couples the driving unit, and through it the basket-carrying spindle, with the ried by combination thrust and radial bearings connections of progressively increasing trans mitted speed and thereby to effect smooth ac celeration of the centrifugal notwithstanding constant rotation of the line shaftat full speed, ter in accordance with well known practice is car line shaft for rotation in unison at full speed. h 4I mounted on the outside of a tubular suspender 34 having a spherical supporting ball 35 seated in The illustrated means for forming such a‘con nection between the continuously rotating line a socket in the fixed hangar 35, which is secured to a depending hanger member 5b forming a down 60 60 shaft i and the loose pulley 8 is in substance like ward extension of the bed plate 5. It will there the clutch mechanism sho-wn and described in my Letters Patent of the United States No. 1,184, fore be seen that the shaft section and the drive 873 granted October 25, 1932, so that full descrip - transmission mechanism for each centrifugal, as tion thereof in this application is unnecessary. well as the centrifugal itself, are carried by a uni tarysupporting structure so that, when the ilexi The clutch mechanism comprises a radial arm 65 spider I0 fastened o_n the line shaft I, on which arms are fulcrumed oppositely disposed pivotal ble joint couplings 2 are disconnected, the whole shoe-carrying arms -I5 on which are pivotally mounted friction shoes I6 which under centrif moved after the 'hanger 36 with the centrifugal has ben disconnected from the depending hanger element 6b of the bed plate. Any slight variation 70 in perfect alignment of the shaft sections is taken care Vof by providing flexible joint couplings 2 ugal force press outwardly powerfully against the interior face of the rim of the -pulley 8. 'Iv‘o retract the clutch shoes from >engagement with the pulley rim there is also fulcrumed on the spider a pair of retracting arms II, which are connected with the shoe-carrying arms I5 by bed plate with its supporting members can be re ywhich may be of any »well known type 'of construc tion. It will valso be seen that, in the illustrated form of apparatus, driving `coupling between the 4 2,128,575 ñngers 32a and 33a takes place substantially in the plane of the center of gyration of shaft 40, which is located at the center of ball 35 and its support ing socket. An outer meber ¢l2~on the basket suspension rates of acceleration, also lends important ad vantages to the arrangement. By providing, in termediate the series of centrifugals driven from the line shaft, a powering element, which as shaft 40 carries a rigidly and removably attached motor secured directly to the line shaft, several advantages are gained. In the first place, when brake pulley $3 embraced by opposite brake bands 22 which are contracted to braking position or ex panded to inactive position by means of a verti il) cal spindle 23 carrying at its upper end a crank arm 2l, which is connected by intermediate link members with a crank arm 2li secured to the con trol shaft i9 which carries the hand control or starting wheel lga. Since the details of this con trol mechanism are explained in my copending application Serial No. 732,114 and are not herein claimed, it will suffice to explain how the control is exerted to energize and to stop the centrifugal. Assuming one of the centrifugals to be at rest af ter having been unloaded so that it is ready to be re-charged, the attendant throws the hand wheel I5!a and the control shaft I9 in a clockwise direc tion, thus effecting at the same time the releasing of the centrifugally actuated clutch shoes from their inactive position to their active position in engagement with the pulley rim 8. At the same time, through the crank >arm 2E) on that shaft and the crank arm 2| secured to the vertical brake spindle by intermediate link connections, the 30 brake shoes are freed from engagement with the brake pulley 43 and the centrifugal begins to ro tate with increasing speed. During the initial part of starting the centrifugal in operation, a charge of sugar is loaded into the centrifugal bas ket 135 in accordance with well known practice and rapidly builds up into a ring or wall of even thick ness inside the basket. At the same time, through another connection at 26, the timing mechanism is started which controls the timing of the differ 40 ent operations of the centrifugal, as explained in my copending application mentioned above. Through the timing control, after a given inter val of acceleration of the centrifugal, the spray is turned on for a further time regulated interval and, the centrifugal, still accelerating, the mois ture is rapidly expelled and the sugar dried to the desired degree. Next the control shaft 9 is re leased and returned to initial position by means of the torsion spring 2l, and practically at the same instant the line shaft clutch is released and the brake is set to stop the revolution of the cen trifugal. It will be noted that bevel gear 30 of the driv ing units is of relatively large diameter in com parison with the bevel pinion 3| secured to the underneath transmission shaft. No exact ratio is prescriptive, since the gear ratio will vary ac cording to the type of po-wering means used to' drive the centrifugals, but in practice very satis 60 factory results are obtained in a general arrange ment of the type illustrated by driving the line shaft at from 400 to 450 R. P. M. and making the ratio of gears approximately 31/2 to 1, or slightly greater. Thus there is a large diameter of driving gear and a correspondingly large di ameter of clutch pulley which, in View of the special type of power transmission, results in a very rapid and powerful pick-up without shock or jolt or chattering. Speeds are obtainable with 70 this construction and arrangement that could be only attained at great difficulty and at much ex pense through an overhead directly-connected motor, or by means of the usual quarter turn driving belt. The variability of powering means 75 and gear ratios .and consequently, of speeds and shown at 28 may be a V-belt driving pulley or a several machines are running and one is stopped for unloading the momentum of the active ma chines acts measurably as a ñy wheel to accel 10 erate the pick-up of the inactive machine when it is started in operation. Moreover, when the machine is disconnected from the line shaft, the braking action is more economical because there is no oversize motor of large mass to be retarded by the brake, as in the case of a directly-con nected centrifugal drive. Both the clutch pulley 8 and the brake pulley 43 are readily provided with a water cooling circulation so that exces sive heating of these frictional parts is prevented 20 and injury to the driving belt or to an overheated motor is avoided. The casing 5 makes a com plete enclosure for lubricating oil, so that there is no objectionable heat generated by the driving gears, and as the driving coupling between the 25 spindle 32 and the basket shaft of the centrifugal takes place at the level of the center of gyration no heat is generated at that point. The apparatus disclosed and claimed in the present application is particularly well suited for 30 use in practicing improved methods of centrifug ing sugar which involve subjection of massecuites and magmas to high centrifugal forces and novel control over` the acceleration of the centrifugals, together with control over other treatments con 35 nected with centrifuging, to secure most eñicient elimination of syrups and improved results from washing and syrup-seperating operations. It is also well suited for other types of treatment, on mixtures of sugar crystals and syrup and in other fields where efficient separation of constituents of mixtures may be effected by centrifugal force. The arrangement and construction of appara tus disclosed in my prior Patent No. 1,826,675, while effective at the lower centrifugal speeds in 45 common vogue at the time said invention was made, is not suited for operations involving rapid acceleration to high speeds such as I have actu ally obtained with the present invention, partly because the energizing clutch used on the line 50 shaft was of the wedging or clamping type so that when the clutch was set to active position it would result in so suddenly gripping the driving gear to the line shaft that it was necessary to use a slip clutch intermediate the vertical transmis 55 sion shaft and the centrifugal, and a slip clutch of this type would involve too much lost motion to accelerate the loaded centrifugal quickly enough to make possible the attainment of such high speed within the time limited as is ,effected 60 by my present construction. It will be noticed that when the driven member of the clutch on the line shaft is energized in the present con struction the further transmission of power to the centrifugal itself is effected through positive coupling means. It is therefore highly important when rapid acceleration is employed that the pick-up of the power transmitting means should be very smooth to avoid breakage of the gears from any sudden powerful shock such as might 70 be caused by the sudden gripping or Wedging of the clutch mechanism employed in my earlier type of construction. I recognize that particular parts and details of construction of the improved driving means for 75 ¿128,575 centrifugal machines may be substituted by equivalentsv and' in'n'ia'ny` instances omitted -alto getherwithout sacrificing advantages of the in vention. I- therefore desire' that the' invention be accorded :a scope commensurate with the spirit of the specification as restricted only by the re quirements of the claims.- l l Whaty I claim' is z‘ 1. A'driving mount for centrifugalsv embracing in combination with an overhead horizontal con‘-‘ tinuously rotating line' shaft-,'.a'series of gyratory centrifugals suspended beneath it `and a series ofv vertical non-gyrating transmission shafts inter mediate the centrifugals and the line shaft, 15 means for positively but ñexibly coupling the transmission shafts with their respective cen trifugals to cause their rotation in unison and drive transmitting mechanism foreach centrifu secured to the shaft section, a vertical transmis sion shaft mounted in fsaid casing-and carrying a 'relatively small bevel gear in mesh with said large bevel gear,_-‘ said transmission shaftbeing provided with means for positively but flexibly coupling it with anvunderneathsuspended cen trifugal. Y, f' ‘ y Y 5. A driving mount for v_centrifugals embrac ing a' single- b‘ed plate'providedat its opposite ends with upwardly projecting anti-friction bear ing s'uppolftìrlg members, a>~ horizontal vline shaft section mounted thereinI _and'provided with means for coupling it Etoîaïsi'm'ilar adjacent section, said bed' plate _being provided with a depending socket hanger _forfthe-s'u's'pension of agyratory centrif ugal and' being also lprovided with upper and lower'anti-fri'ctien bearing members' for support`-` ing a vertical Vdrive¿transmitting shaft having gal comprising centrifugally actuated clutch flexible coupling connection- with the centrifugal 20 shoes having pivotal connections with the line shaft to revolve Ytherewith and retractable at suspended ben'eatlr'it, a centrifugally actuated clutch,mounted- upon saidv horizontalv shaft to willl to inactive position while revolving, a clutch* pulley> andV a connected gear element loosely mounted on the line shaft .and arranged to> be 25 energized at a- progressively accelerating speed when the clutch shoes-are released from retracted energize atwil'l aï largey beveliigear also'mounted on said shaft-»said gear 'having driving connec- position, and a gear secured" tothe transmission shaft in' mesh with the aforesaid gear. _ 2,-, In a driving mount for suspended gyratory 30 40 45 centrifugals the combinationvwitha continuously rotating line shaft, a centrifugal clutch member comprising centrifugally actuated clutching vertical non-gyratory' transmission shaft below connection with‘arbevel gear train, and a line the line shaft having positive but flexible cou pling connection with a centrifugal suspended shaft powering element located intermediately of the'series of centrifugals, thereby permitting the gal flexibly coupled together, each section being a centrifugallyv actuated clutch mounted on each section, the driven memberof which has driving centrifuging operationsto be continuously ’per mesh with the aforesaid large gear. _, formed `by the centrifugals on one side of the poweringV element while centrifugals on the other side thereof are inactive. ~3. A driving'mount for centrifugals'comprisingv acontinuously running horizontal line shaft and centrifugal comprising' a non-gyratory - transmis~ a series» of gyratory centrifugals suspended at a ' distance >below said shaft, the line shaft compris ing a series'of individual sections coupled together 55 one of the supports for the anti-friction bearing supporting saidv horizontal shaft. 6.v A driving mount for centrifugal machines embracing in combination a series of suspended 30 gyratory centrifugals,v> an overhead line shaft comprising individual sections for each centrifu provided with its own individual bearing support, end to end by flexible couplingmembers, ar drive 50 tion with a relatively `sin'all gear secured to said transmission shaft“,I |said 'gears 'and' transmission shaft being mounted inv a' hollow `casing forming members-connected to the shaft for rotation in unison therewith, and a driven friction pulley loosely mounted upon the shaft, a relatively large bevel gear securely connected with the pulley, a beneath in coaxial alignment therewith, and a relatively ,small bevel gear secured to the upper end ofv said transmission shaft and in constant transmission mechanism comprising avertical 15 , 'l'.` Driving means for a suspended gyratory sion shaft> co-"axially arranged above the'centrif ugal and flexiblyec'oupled therewith, and an over head', continuously rotating horizontal power shaft having interruptible driving connection with non-gyratory shaft arranged intermediate the line shaft and the centrifugal and having flexible but positive driving coupling'with said centrif ugal, a gear train 4comprisingva relatively large the transmission'shaft by means of a centrifugal 50 clutch device mounted on the` line shaft, the driven member of which clutch/.is directly con nected with a -bevel gear transmission train pro portioned to transmit from the line-shaft to the* bevel‘gear- loosely revoluble about 'a section of transmission shaft multiple speed rotation. the line shaft and meshing with a relatively small 8. In a driving unit for a suspended gyratory centrifugal, the combination of a driving member rotatable about a substantially horizontal axis, a vertical non-gyratory transmission shaft inter bevel gear on the transmission shaft, and a ro tatable driving member connecting said gear train with a centrifugal clutch mechanism car 60 ried by the line shaft section upon which the large bevel gear is loosely mounted. 4. A driving mount for centrifugals embrac ing in its construction a supporting bed plate provided at its opposite end portions with axially aligned anti-friction bearings for supporting an ` individual section of a line shaft, the support for one of said anti-friction bearings comprising a hollow casing in which is mounted a relatively large bevel gear loosely revoluble about the line 70 shaft, a clutch pulley mounted outside of said casing and adjacent thereto and secured to said gear by means of a connecting loosely revoluble sleeve, centrifugally actuated clutch shoes re tractably mounted interiorly of said pulley and having pivotal connections with a driving spider 55 connected with the driving member by bevel 60 gearing, a gyratory centrifugal basket-carrying shaft suspended for gyration and rotation about a center in coaxial alignment with said trans mission shaft, and flexibly interlocking coupling members for positively transmitting rotation to 65 the basket lshaft at substantially the level of the center of gyration. 9. In a driving unit for a gyratory centrifugal, the combination of a gear casing having bearing supporting openings bored at right angles to 70 each other, anti-friction shaft bearing elements mounted in the respective bearing openings, a horizontal rotatable driving member supported in one bearing element, a vertical non-gyratory transmission shaft revolubly mounted in another 75 6 2,128,575 bearing element, a centrifugal basket spindle sus pended to gyrate and rotate about a center below said vertical shaft and in coaxial alignment there with, and flexibly but positively interconnected coupling members secured to the transmission shaft and spindle for positively transmitting rota tion to the basket spindle at substantially the level of said center of gvration. v 10. Apparatus for driving a series of suspended gyratory centrifugals comprising a common line shaft located adjacent a plurality of centrifugals of a series, means for powering said line shaft, a driving unit intermediate the line shaft and each of said centrifugals, said driving unit com prising a vertically extending transmission shaft, a driving member rotatable about an axis at an angle to the axis of said transmission shaft and intermeshing gears connecting said transmission shaft and driving member together for simul taneous rotation, means positively and constantly coupling each of said transmission shafts with a gyratory centrifugal spindle, and power trans mitting means ìnterruptibly connecting each of said rotatable driving members with said line shaft to transmit power from the line shaft mission shaft supported lon bearings on another of said seats and extending outside the casing at right angles to the driving member, a .suspended gyratory basket-carrying spindle, means flexibly but ,positively and constantly coupling the ex tended portion of said shaft with said spindle, and a pair of accurately intermeshing bevel gears within said casing including a gear securely fastened to each of said driving member and shaft. 13. In a driving unit for a gyratory centrifu gal, the combination of a mounting and enclos ing casing for the unit made of upper and lower mating unitary sections, the lower section form ing an integral bed supportffor other parts of the unit and having footings for anchorage to supporting framework abovea suspended gyra tory centrifugal, said casing having precisely ma chined openings with their axes in angular rela tion, a non-gyratory transmission shaft extend ing vertically into the casing through one of said openings and maintained in accurate position by spaced anti-friction shaft bearings seated in parts of the casing, an underneath gyratory bas ket-carrying spindle, means outside the casing through said driving units to said spindles. positively and constantly coupling said shaft with l1. In a driving unit for a gyratory centrifugal, the combination of a casing having seats for shaft bearings with axes at an angle to each other, anti-friction shaft bearings mounted in said said spindle, a bevel gear secured to the shaft within the casing, a rotatable driving member extending into the casing at an angle to said seats, a horizontally extending rotatable driving member supported on bearings in one of said seats and extending outside of the casing, the extended portion of said member embodying shaft through another of said openings and main 30 tained in accurate position by other spaced anti friction bearings seated in parts of the casing, said driving member embodying means outside the casing for connection toI power transmitting means for positive connection with power trans mitting means, a vertical non-gyratory trans mission element supported on bearings in an other of said seats and extending below the driv ing member at an angle thereto, means flexibly but positively and constantly coupling the ex tended portion of said element with said spindle, means, and a second bevel gear secured to said - and accurately intermeshing gears within said casing including a gear securely fastened to each of said driving member and transmission element. common line shaft for the centrifugals of the group, powering means for revolving the line 12. In a driving unit for a gyratory centrifugal, the combination of a casing having seats for shaft bearings with axes at right angles to each coupled to each spindle, each unit including a 45 train of intermeshing gears and a horizontally rotatable drive member inside the casing in pre cise meshing relation with the bevel gear on said shaft. 14. Driving means for centrifugal machines comprising a group of centrifugals each having a 40 suspended gyratory» basket-carrying spindle, a shaft, a driving unit positively and constantly extending rotatable driving member secured to other, anti-friction shaft bearings mounted in one of said gears, and means ìnterruptibly con said seats, a horizontal rotatable driving member supported on bearings in one of said seats and extending outside of the casing, a pulley for transmitting power to the unit, disconnectible coupling elements on the extended portion of said necting each of said driving members with said line shaft, said connecting means being operative when actuated to establish progressively increas ing speed transmitting connections between the driving member and said pulley fastening the same together, a vertical non-gyratory trans line shaft and each driving unit as well as a full speed connection therebetween . EUGENE ROBERTS. _ CERTlFIGA'I‘E OF CORRECTION. Patent No. 2,128, 575. v ' EUGE1\1Ev August 50, 1958. ROBERTS . n It is hereby certified that error appears in the printed specification of the above numbered patent requiring correction as follows: Page 6, first column, line 59, claim ll, after> the comma and before "means" insert the words and icommflai a suspended gyratory basket-carrying spind1e,; and that the said Letters. Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Office. Signed and sealed this 15th day of December, A. D. 1958. Henry Van Arsdale (Seal) ' i Acting Commissioner of Patents.