Патент USA US2123685код для вставки
,July 12,1938. _ w. w. SLOANE ‘ -_ DRIVE- MECHANISM FOR_$HAKER CONVEYIERS Filed March 13. 1-936 | _ .7" I l 3 g i 2,123,585 ’ ‘ 3 Sheets-Sheet 1 July 12', 1938; w_ w_ SLQANE I n 2,123,685 DRIVE’ MECHANISM FQR SHAKER CONVEYERS Filed March 13. 1956 3 Sheets-Sheet 2 l? I —| vI I | l I I \k, w 573;4 ' 3% July 12, 1938. w. w. SLOANE- ‘ ' 2,123,685‘ DRIVE'MECHANISM FOR SHAKER CONVEYERS Filed March’ _1s',\.,v19s6 s Sheets-Sheet 5 WluhL Patented July 12, 1938 2,123,685 UNITED STATES PATENT OFFICE , 2,123,685 - ‘ DRIVE MECHANISM FOR SHAKER ' CONVEYERS William W. Sloane, Chicago, Ill., assignor to Goodman Manufacturing Company, Chicago, Ill‘., a corporation of Illinois Application March 13, 1936, Serial No. 68,618 19 Claims. (Cl. 198-220) This invention relates to improvements in invention, connected to a conveyer pan line, with drive mechanisms for shaker conveyers of the parts of the pan line broken away; type utilized for conveying loose material such Figure 2 is a fragmentary plan view of the de as coal and more particularly to drive mecha vice shown in Figure l, with certain parts broken 5 nisms in which the conveying action may be var away and shown in horizontal section in order to 5 ied and the direction of coal travel may be re more clearly illustrate certain details of my in versed under the control of the operator. vention; More speci?cally the presentinvention is di rected to improvements in construction of the 10 type of mechanism disclosed in my prior applica tion, Serial No. 746,979, ?led October 5, 1934, which matured into Patent No. 2,077,593, and has as one of its objects to provide a drive whereby the conveyer pan line may be driven from rock 15 ing arms and puller arms rather than directly from a rotatable crank and pitman, which mech anism is arranged in a novel manner to effect a drive wherein the direction of coal travel may be reversed under control of the operator. 20 Another prior application, Serial No. 57,730, ?led January 6, 1936, shows a variable conveyer drive mechanism wherein a crank, rotatably driv en at a variable angular velocity, reciprocably drives a conveyer pan line by means of a rocking 25 member rocked‘ by a connecting rod journaled on said crank. The device of my present invention differs from the device of my prior application in that it is reversible and in that the variably ro tatable drive mechanism and connecting rod are 30 so arranged that the driving effect of the con necting rod is relatively moderate and is added to the driving effect of the variably rotatable‘crank when arranged to convey material in a forward direction and subtracted from the driving effect 35 of said crank when arranged to convey material in a reverse direction. This results in a drive mechanism so arranged that the driving effect of the crank is ‘greater when the variably rotatable drive mechanism is arranged to convey material 40 in a reverse direction than in a forward direction so that the driving effect of said rotatable drive mechanism in a reverse direction may counteract the driving effect of the connecting rod in a for ward direction and attain a ?nal conveying effect 45 of the mechanism which will be the same for similar settings of the drive mechanism in both forward and reverse directions. Other objects of my invention will appear from time to time as the following speci?cation pro ceeds. , My invention may be more clearly understood with reference to the accompanying’ drawings wherein: , Figure 1 is a top plan. View of a conveyer drive 55 mechanism constructed in accordance with my Figure 3 is a side elevation of the device shown in Figure 1, with certain parts broken away and shown in longitudinal section; Figure 4 is an enlarged partial fragmentary longitudinal sectional view through the variably rotatable drive mechanism and taken substan tially along line 4—4 of Figure 2, showing the parts of said drive mechanism positioned for con 15 veying material along a conveyer pan line in one direction; Figure 5 is a view somewhat similar to Figure 4, but with the parts positioned for conveying ma terial along the conveyer pan line in an opposite _ direction; Figure 6 is a sectional view taken substantially along line 6—6 of Figure 5; Figure 7 is an enlarged detail sectional view showing certain details of the ;means for indi 25 cating the position of the parts for varying con veying actions; - - Figure 8 is an enlarged detail sectional view showing certain details of the indicating mecha nism shown in Figure 7; and 30 Figure 9 is a diagram or graph showing certain hypothetical velocity curves of shaker motions attainable by the shaker mechanism. Referring now to the drawings which illustrate a preferred embodiment of my invention, a shaker conveyer drive mechanism, generally in dicated by reference character I0, is provided. Said drive mechanism is mounted on a base plate I I which is adapted to be held in position on the mine bottom in the usual manner; as, for in stance, a plurality of mine jacks at the corners thereof and indicated generally by reference characters I2, I2. The general arrangement of the drive mecha nism and the details of the gear reduction mech anism utilized therein are similar to those shown and described in my aforementioned prior appli cation, Serial No. 746,979, (Patent No. 2,077,593), but as all of said parts cooperate to produce the desired variations in shaking motions including 50 reversal thereof, said parts will herein be brie?y described. » s A casing I 3 is mounted on the base plate I I in a suitable manner as by welding and comprises a cylindrical portion I4 serving as a support and 2,123,685 housing for planetary gear reduction mecha nism, generally indicated by reference character I5, and a forwardly extended portion l6 which forms a bearing support for a transversely dis posed rocking shaft | ‘I. Said rocking shaft is provided with a pair of rockingarms l8, _l8 disposedat opposite-ends thereof and herein shown as extending upwardly 34 and inwardly towards the center thereof and is journaled on a shouldered hub 45 formed in tegral with the side wall 38. A spider 46 abuts the opposite face of said in ternal gear and is secured thereto by means of OX suitable nuts and bolts 41, 41. Said spider is provided with a hub 49 which is journaled on a shoulder 5ll-of the rotatable support member 28 therefrom. Said rocking arms are adapted to and arranged coaxial‘ with the axis of rotation 10 10 have suitable connecting or puller rods l9 pivot--v ,. of the crank 22. ally connected thereto which in turnrare con? ' It will be apparent that rotation of the sun nected at their free ends with opposite sides of“ ' gear'39iwill'rotate the cage 25 within the internal gearw43 when said internal gear is held from move a shaker conveyer trough 20 in a usual manner well known to those skilled in the art .(see Figures ‘ ment. When said internal gear is rotated in the direction of rotation of the cage 25, the speed of . 15 l and 2). The rocking arms l8, I8 and rocking shaft I11 - rotation of said cage will be increased, and when are rocked by means of a rocking arm 2| keyed said internal gear is rotated in an opposite direc to said shaft within the casing i3, and‘ depending‘ tion, the speed of rotation of said cage will be from said shaft. Said rocking arm is‘rockedby a variably rotatable crank 22 by means of a decreased; 1 relatively long connecting rod 23. It should here in be noted that the cranki22, connecting rod 23 and rocking arm 2| are‘so arranged that said crank will rock said rocking arm atequal angles 25 to a line extending through the center of the rocking shaft l1 and disposed perpendicular to the longitudinal center line of the , connecting rod 23 when in a dead center'position. The‘rock ing arms I8, l8 will in turn be rocked at equal 30 angles to a line extending through the rocking center of said arms and perpendicular to- the longitudinal center line of the puller arms |9 when said puller arms are at either of the ex treme ends ‘of their stroke; The purposelof this arrangement is to'moderate'the conveying effect of said connecting rod and rocking arms as much Referring now particularly to the mechanism for changing the angular velocity of the crank 22'which mechanism forms a part ofthe subject matter of the present invention, the same com prises a novel~arrangement for rocking the in ternal gear 43 alternately in opposite directions during each revolution of said crank in such a manner that the variation in angular velocity of said crank will be greater when the parts are ar ranged to convey material along the trough line in one direction than in anopposite direction in ' order to counteract the tendency of the connect ing rod 23 to move material along the trough line in a forward direction when the conveying action of the crank '22 is reversed. ' The crank 22 isjournaled'at one of its ends in a suitable‘ end plate “for the casing l3 and has a cage 25 of the planetary gear mechanism "15 As herein shown, my improved mechanism in 35 cludes a crank‘ 53 formed integrally‘ with the shaft for the crank 22 and disposed 90° out of phase with the crank 22 in a-manner similar‘ to that described in a prior application, Serial No. 706,787, ?led January 15, 1934, now‘ Patent No. a40 keyed to its opposite end. Said cage and crank 2,077,811. as possible. ’ , ' shaft are journaled on a ball bearing’26 mounted on the hub of said cage‘and'engaging a shouldered bearing surface 21 formed in a supportmember 28 rotatably mounted in the cylindrical portion M of the casing‘ l3. The crank 22 and planetary gear mechanism l5 are driven from a suitable motor 29'secured to one end wall of the casing ‘ l3 in a usual manner. 50 Said motor is herein shown as beingof the elec tric type having a ?ywheel>30l5keyedon its motor shaft within the motor casing for moderating fluctuations'in speed of said motor.- Said‘motor is provided with a motor pinion 3| which meshes with and drivesan idler gear 33. Said idlerigear meshes with and drives a spur gearv 34-'on a shaft 35. Said shaft, is journaled'at one of its ‘ends in'an end plate 35 disposed oppositelyfrom-the end plate 24 and is journaled ‘intermediate its 00 ends in a suitable bearing member 31 supported in a side wall 38 of said casing. Said shaft has a spur gear 39 keyed to its inner end which spur gear forms a sun gear for the planetary gear‘re duction mechanism l5. The spur gear 39 meshes with-and drives plane 65 tary pinions 40, 4|] freely carried 'on parallel spaced shafts 4|, 4| which shafts are's‘ecured-‘at their ends in the cage 25'in'a usual‘manner'. Said pinions mesh with an internal ring gear‘ 43 which 70 serves as a reaction vmember for~the planetary gear reduction device. The‘ outer periphery and side of said ring gear adjacent the end-plate36 abuts a shouldered portion of a rotatable support member 44.» Saidsupport member'extends out 75 wardly over the sides of the cage 25-and sun-gear In my improved construction, the crank 53 has bearing in an anti-friction bearing member 54 carried by a block 55. Said block is slidably guided between the prongs of a bifurcated por 545 tion 56 of an oscillating iframeS'l.‘ Said frame, as herein shown, oscillates'about a relatively long are so as to reduce'inaccuracies caused by angu larity in-movement of said frame and extends to and'is journaled on the rocking-shaft H (see Figures 2 and 3). The oscillating'frame 51 is provided with a hollow annular extension 59 surrounding the crank 53. This annular extension forms a hub for a rocking. member 60 rotatably mounted thereon and provided with a pair of oppositely disposed extensions 6| and 62. One of these ex~ tensions BI is pivotally. connected by means of a relatively short link 63 to a projection64 of the rotatable support member 28. Said rotatable it' 3 support member is mounted within the cylin drical portion M of the casing I3 for rotatable movement with respect thereto‘ and has worm teeth formed on its outer periphery. Its general arrangement and function is similar to that-of the worm gear rings previously employed in drive mechanisms of the same type illustratedby my prior application, Serial Norv 746,979, (Patent No. 2,077,593), namely, to change the angular position of the rocking member 60 with respect to the oscillating frame 51 so as to control the vio lence of the shaking action, and also‘ by suitable adjustment, as will presently appear, to re verse the direction ofshaking movement. ‘ The'opposite projection 62-is-pivotally-con 2,123,685 nected to a projection 66 which extends out wardly from the spider 46 forming a support for the internal gear 43, as previously described, through a link 65 which is considerably longer than the link 63 and extends in the same general direction as the link 63. Said projection extends 3 cably driven in such a manner that material will move along it when it is disposed along the level. The foregoing is true with the device herein il lustrated, where the connecting rod 23 is longer than is usual for drives of this type, when the rocking member 60 is-positioned so that the crank The through a suitable slot 61 formed in the rotatable ~ 22 rotates at a uniform angular velocity. support member 28 so that said projection and spider may reciprocably move with respect to 10 said rotatable support member. A worm 69, herein shown as being formed in tegral with a shaft 10 meshes with the gear teeth formed in the outer periphery of the rotatable support member 28. Said shaft has hearing at crank 22, however, has a conveying effect when rotated at a uniform angular velocity which is due to angularity of its movement with respect 10 to the trough, but this is only sufficient to cause material to- move along the trough line when in clined down grade. The connecting rod 23 and ‘H of the cylindrical portion M of the casing l3, rocking arm 2| also have a distinct conveying effect. The ?nal conveying action when these 15 parts are combined is, accordingly, the sum of which portion forms a housing for said worm these conveying effects. 15 its upper and lower ends in an enlarged portion which is manually controlled by a hand wheel 12. A locking means is provided for restraining the rotatable support member 28 from rotation. In the form shown, said support member is provided with a plurality of apertures, indicated by ref erence characters ‘l3, 14, ‘I5, 16, 11 and 78, re spectively, which are placed at suitable intervals 25 indicating the position of the parts where the most e?icient conveying actions may be effected by the mechanism for moving material in either ‘ Movement of the support member 28 beyond the point where there is no rocking movement of the rocking member 69 will cause said rocking 20 member to rock in an opposite direction than formerly and will reverse the conveying eifect of the crank 22 in a manner which has been clearly described in my aforementioned prior application, Serial No. 746,979 (Patent No. 2,077,593). The 25 a forward or reverse direction commensurate with conveying effect of the connecting rod 23 and rocking arms 2! and I8, however, is not reversed upon reversal of the conveying action of the crank given stresses on the drive and trough line. Said '22 so is still in a forward direction. Thus, when 30 apertures are adapted to be selectively engaged by a spring-pressed plunger 19 mounted in a lug 8|! extending outwardly from said casing (see Figures 4, 5 and 6). The plunger 19 is disengaged from any of said 535 aforementioned apertures by means of a pair of spaced lever arms 8| actuated by an operating lever 82 (see Figure 1). The free ends of said arms engage the lower ends of projections 83, 83 extending inwardly from a member 84. Said member is secured to the outer end of said plung er and extends inwardly along opposite sides of the lug 8B. ' It will be manifest that the greater the arc of movement of the internal ring gear 43 during 45 each revolution of the crank 22, the greater will be the variation of the angular velocity of the crank 22 and the steeper will be the line of the velocity curve, indicating the deceleration of the forward stroke resulting in an increase in mate 50 rial travel along the trough line with a corre sponding increase in stresses on the drive. It will be observed in Figures 4 and 5 particu larly, that the effective arc of rocking move ment of the internal ring gear 43 may be con 55 trolled by rotation of the rotatable support mem_ ber 28 through manipulation of the hand wheel 12. In Figure 4, the parts are positioned so that ?nal velocity curve will be similar to curve A in Figure 9, and movement of said support member the rocking member 69 is in this last-mentioned 30 position, the ?nal conveying eifect of the drive will be the conveying effect of the connecting rod 23 and rocking arms I 8 and 2| subtracted from the conveying effect of the crank 22. When the support member is midway between the apertures 35 75 and ‘Hi, the conveying effect of the crank 22 in a reverse direction will be neutralized by the conveying eifect of the connecting rod 23 and rocking arms l8 and 2 i. The velocity curve of the drive will be similar to that indicated by curve :40 B. of Figure 9, and the trough line will have no conveying effect, except when inclined down grade. Further rotation of said rotatable support member in the same direction will reverse the 45 direction of movement of said internal gear and change the phase of the peak of the acceleration curve so it will occur in the ?rst 90° of the cycle of rotation of said crank. Still further rotation of said support member will gradually increase 50 the arc of movement of said internal gear and thus increase the effectiveness of the drive action in a reverse direction until a point is reached where the plunger 19 may engage the aperture 55 18 at which point the drive action will be the same as indicated by curve A of Figure 9, but in a reverse direction and indicated by curve C‘ of Figure 9. 60 in a clockwise direction from the position shown It should herein be understood that it is de in Figure 4 will result in a gradual decrease in the arc of movement of the internal gear 43, which will decrease the effectiveness of the conveying action until a point is reached where there will 65 be no rocking movement of said internal gear. It should be understood that a crank driven at a uniform angular velocity and connected to a conveyer trough by means of a connecting rod will reciprocably drive the trough, but the motion 70 of the trough will be such that there will beno movement of material along it except when in sirable that the conveying effect of the rocking clined down grade. If, however, the connecting rod is relatively short and its free end is connected to a rocking member which in turn is connected 75 to the trough line, the trough line will be recipro arms 26 and I 8 be moderate in conveying effect of the crank 22. the length .of the connecting rod creased to reduce angularity in tween said crank and the rocking 60 contrast to the For this reason 23 has been in movement be 65 arm 2 I. Angu larity is also reduced by arranging the rocking arm 2: so it will rock at equal angles to a line intersecting its axis of rocking movement and perpendicular to the longitudinal center line of 7.0 the connecting rod 23 when in a dead center po sition and arranging the rocking arms l8, l8 so they will rock at equal angles to a line intersect ing their axis of rocldng movement and perpen dicular to the longitudinal center line of the con_ 75 2,123,685 4 meeting, rod "I 9 when at- eitheriends ofiits'stroke, as hasIpreviously-been described.‘ J When the rocking member‘ 6011s positioned :to reversethe direction'of travel of 'materialalong the troughv line, the conveying effector the rock ing arms2l, 2l‘rocked by thercrank '22"'Tand connecting rod 23Sis counteracted 'by increasing the arc of movement of the internal gear 43 ‘and thus increasing thev variationin angular velocity of the crank‘22." ' This increasein the arc of movement'of said in; ternal gear,‘ when said -‘ rocking memberisina reverse position,“ is attained by arranging the parts so thatithe vertical component ‘of-move T15 ment of said internal gear is less ‘for'a'forward position than for a corresponding reverse po sition, so that the ?nal conveyingeffectrof the drive will be the same in either a forwardor reverse direction, as may clearly be seen with reference to Figures 4 and 5. Thus, when the parts are positioned; as shown in Figure 5,- the ?nal conveying action of the drive will be the same as when positioned as shown in Figure 4, but‘ in a reverse-direction and=~will be the conveying effect of the crank 22, minus the conveying effect of the connecting rod 23 and rocking arms 2| and I8. As a further feature of my'improved ‘construc tion, I provide novel means for indicating the 30 position of the parts‘ and violence of-the drive when the rotatable support member 28 is in its various positions of adjustment. As herein shown, a housing member 86 is mounted on the upper side of the cylindrical portion M of the casing l3 by means of cap screws 81, 81' (see Figures '7 and 8). Said housing ‘member has an indicating pointer 88 mounted thereon for trans lational movement with respect thereto. Said pointer is connected at its inner end to a mem ber 89 slidably guided in said housing member. The member 89 has a depending portion 90 which is slidably mounted in a spiral groove 9| formed in the outer periphery of the rotatable support member 28. Suitable characters or letters are herein shown as being provided on the outer face of the housing member 86, as is best shown in Figurer'i, so said indicating pointer may, indicate the position of the parts when the plunger 19 is engaged with any of the apertures 13 to "I8, in elusive, and thus indicate the violence of’ the con veying action and the direction of material travel along the pan line. While I have herein shown and'described one form of my invention, I do not wish to be lim ited to the precise details of construction or‘ar rangement of parts herein shown and described, excepting as speci?cally'limited in the appended claims. 60 I claim as my invention: 1. In a shaker conveyer drive, a crank driven at a variable angular velocity, a rocking arm, a connection from said rocking arm to a conveyer trough for reciprocably driving said conveyer trough and a connecting rod connecting said crank with said rocking arm, and a planetary geared reduction device for variably driving said crank, said planetary device including a recipro cably movable reaction member and means for reciprocably moving said reaction member dur ing each revolution of said crank including an os cillating member driven by the shaft which. drives said crank, said'oscillating member beingoscil latable about an axis coaxial with the pivotal axis of said rockingarm. ‘ 2. In a shaker conveyer drive, a crank driven at. a variable angular velocityya rocking arm,- a connection fromlsaid rocking arm'jto a- conveyer trough :for: reciprocably driving said conveyer trough ' and 71a‘ ' connecting ' rod connecting a said 'crankxwith said rocking :arm; and' a planetary geared reductionrdevice for variably driving said crank,1said§ planetary device including a recipro cably movable reaction member and means for reciprocablyi‘moving-said reaction member dur ing each revolutionj-of saidcrank‘includingan oscillating member driven 'by the shaft which "10 drives said» crank, ,/ said oscillating: member ' being oscillatable- about an‘ arc’ whose radius. is greater than the lengthiof"saidconnecting rod. 3. In a-shaker ‘conveyer drive, a crank driven £15 at avvariableE angular velocity, a rockingarm, a connection fromisaid-rocking arm to a conveyer trough"for-reciprocably driving». said conveyer trough" and a relatively ' long‘ connectingrod con necting said crank with saidirockingarm, and a :20 planetary‘ geared reduction-device, for variably driving said‘ crank-said planetary :device includ ing a‘re'ciprocably movable reactionmember and means for 'reciprocably- moving said reaction member“ during each". revolution of said- crank 125 including~'an~oscillating~ member of a-greater length than-‘said connecting rodand driven by the shaft-which drives said crankrsaid oscillat ing‘ member'being roscillatively- movable about an axis disposed vI-parallel-to the pivotal axis of said £30 crank:‘ T ' a . i 4. ‘In-fa shaker conveyer-drive, a crank rotatable at a variable angular velocity, a rocking armya connection from saidirockingaarm-toa conveyer trough for ‘reciprocably-driving said conveyer 'trough'and a-v'connecting rod connecting said crank’ withv said rocking’ arm, , and .a‘ planetary geared'reduction device‘ for- drivinglsaid crank, said planetary’ device ‘including a reciprocably movable‘ reaction member;- andmeans ‘for recip- ; rocably movingisaidireaction member, for vary ing the angular velocity of said crank during each revolution - thereof ~; comprising. . _ an oscillating memberrpivotally‘movable about an axis coaxial with" the pivotal axis‘ of ‘saidrocking arm. 5. In~ 'a-shakei" vconveyer - drive, a planetary ‘ geared're'duction ‘device including a'driven crank, a movable‘ reaction member for varying the angu lar-velocity of said: crank ' during each‘ revolution thereof; means-for reciprocablymoving said re- , action member; and meansfor changingthe posi- ' tion‘of-saidmoving means forchanging the angu larvelocityi-of saidcrank-and reversing-the di rection ofrmovement of material along said con veyer trough; and 'a‘connection from said crank -55 to-said conveyer’. trough ‘for reciprocably driving \ said trough; isaid' connection having a conveying effect in‘one idirect-ion andfbeing arranged so that this conveyi'ngreifectds 1added to the conveying effect transmitted" by said crank-when the angu lar velocity: of said ‘cranky-is variedby saidreac tionl-member' in such‘a ‘manner as to cause“ mate rial~to move-along said= trough in one direction andi'subtractedi-from the conveying effect trans mitted'by "said-r crank when the angular velocity of ‘said icrank is variedby said-reaction member in such 'ai'manner as-‘to cause material to move along said-trough in anopposite direction and in cluding a-rocking'member and a'connecting rod connected between said crank and rocking mem ber." ~ 601m ‘a shaker, conveyer ‘drive, a planetary geared reduction device including a driven crank, av movable reaction member for varying the angu llarivelocityrofi said crank during each revolution 2,123,685 5 thereof, means for reciprocably moving said re action member, and means for changing the posi tion of said moving means for changing the angu lar velocity of said crank and reversing the direc member, another .link pivotally connected from the opposite end of said rocking member to a point adapted to be-?xed from movement during operation of-the drive, and anoscillating mem tion ,of movement of material along .'said con veyer trough, and a connection from said crank ber driven by the means for driving said crank, 5 to said conveyer trough for reciprocably driving for rocking said rocking membensaid oscillat ing member being pivotally movable about an said trough, said connection having a conveying ‘ axis coaxial-with the pivotal axis of said rock effect in one direction and being arrangedso that ing arm. 10 this conveying effect is added to the conveying 9. In a shaker conveyer drive and in com 10 e?ect transmitted by said crank when the angu bination with I a reciprocably driven conveyer lar velocity of said-crank is varied by said reac trough, acrank rotatably driven at a variable tion member in such a manner as to cause ma terial tomove along said trough in one direction 15 and. subtracted from the conveying e?ect trans mitted by said crank when the angular velocity of said crank is varied by said reaction member in such a manner as to cause material to move along said trough in an opposite directionand includ 20 ing a rocking member, a connecting rod con nected between said crank and one lever, arm of ‘ saidrocking member for rocking said lever, arm at equal angles to a line extending through the center of said rocking member and perpendicular 25 to the longitudinal center line of said connecting rod when in a ‘dead center position, a puller rod‘ connectingsaid lever arm with said conveyer trough, said last-mentioned lever arm rocking to equal angles to a line intersecting the axis of .30 rocking movement of said arm and disposed per pendicular to the longitudinal center line of said ‘puller rod when in av dead center position. = 7. In a shaker conveyer drive and in combi nation with a reciprocably driven conveyer trough, a crank, ‘an epicyclic- gear train for driv ing said crank, said gear train including a re action member movable in opposite directions during each revolution of said crank, a rocking angular velocity, a rocking arm, a connection from said rocking arm, to said conveyer trough for- reciprocably driving said ‘conveyer trough, ,15 and a connecting rod connecting said crank with said rocking arm,~said connecting rod and rock- ing arm havingaconveying effect in one direc tion only, means for driving said, crank at a variable angular velocity comprising a planetary 20 geared reduction ‘device having a movable reac tion member, and means for reciprocably mov ing said reaction member comprising a rocking member having a movable fulcrum, means for changing the “position of the fulcrum of said , rocking member for varyingthe extent of move ment of said reaction member and reversing the order of movement thereof for reversing the flow of material along said trough, and said rocking member and reaction member being so arranged 30 with respect to each other that said reaction member is movedthrough a greater are when said rocking member is arranged to convey ma terial along said trough line in one direction than in a reverse direction to counteract the _ conveying effect of said ‘connecting rod and rocking arm when material is'moved in a reverse direction along said-trough line. member for reciprocably moving saidreaction 10, In a shaker conveyer, drive and in com binationfwith a reciprocably driven conveyer 40 member, and means for shifting the positionof said rocking member for changing the angular trough, a crank rotatably driven at a variable velocity of said crank to change the intensity angular velocity,v a rocking arm,_ a connection of ‘the conveying effect thereof and reverse the from saidvrocking arm to said conveyer trough flow of material along said trough, a connection for. reciprocably driving said conveyer trough and a connecting rod connecting said crank with 45 45 fromsaid crank to said conveyer trough includ ing a rocking arm and a relatively long connect said rocking arm, said connecting rod and rock ing rod connected between said crank and rock-, ing arm havinga conveying effect in one direc ing arm, said rocking member and the connec . tion only, means for driving said crank at a tions therefrom to said reaction vmember being variable angular velocity comprising a'planetary so arranged that the ?nal conveying effect of' said .drive ‘is the sum of the conveying effect geared reduction device having a movable re action membenandmeans for reciprocably mov ing said reaction member during each revolu tion of said crank for varying the angular ve transmitted by'said crank and the conveying effect ofisaicl connecting rod and rocking arm when the angular velocity of said crank is such’ as to convey material along said trough in one direction and the di?erence of the conveying effects transmitted by said crank and the con veying e?ect of said connecting rod‘and rocking arm when the angular velocity of said crank is such, asto convey material along said trough in an opposite direction. ;. ‘ : r 8. In a shaker conveyer drive, a crank rotat locity thereof ‘including av rocking member, means for changing the position of the fulcrum of said rocking member for varying the extent of movement of said reaction member and re versing the order of movement thereof for re versing the flow of materialalong said trough, and a connection from said rocking member to 60 said, reaction member for moving said reaction member through a'greater arcwhen said rock able ata variable angular velocity, a rocking arm, a connection from saidrockin‘g- arm to a ing member is arranged to convey material along 65 conveyer trough for, reciprocably drivingvsaid conveyer trough, and aconnecting rodconnect verse direction to.counteract the conveying ef fect ofsaid connecting rod and rocking arm ing said crank with said rocking arm, a plan wherrmaterial is moved in a reverse direction etary geared reduction device for driving said crank, said, planetary including aireciprocably .70 movable reactionv member,.,and means ,for re ciprocably moving said reaction member com prising, a rocking member rockablev 'about‘an axisparallel to and rotating about the axis of ro tation of said crank, a link connected‘ from- one 75 end of‘ said rocking member to said reaction 50 said trough line in one direction than in’ a re along said trough line, and means for rocking said rocking member comprising an oscillat ing arm pivotallymovable about an axis coaxial 70 with the pivotal axis of said rocking arm. 11. In a shaker conveyer drive and in com bination with a reciprocably driven conveyer trough, av shaft having a crankthereon rotatably driven at a variable angularvelocity, a rocking 75 2,123,685 6 arm, a connection fromsaidrocking arm to-said veyer-troughi for reciprocably driving‘ said con conveyer- trough vfor .reciprocably ‘driving said conveyertrough, and a connecting rod connect ing said‘ crank with said rocking‘ arm, said‘ con gearedreduction device for variably driving said necting rod and rocking arm having a convey ing effect in oneidir'e'ction-‘o'nly, mean'sifor'driv ing" said crank» at a variablei=anguiar velocity comprising a planetary'geared- reduction device having a movable reaction member, andrneans 10 for reciprocably moving said reaction member ‘comprising a rockingimember having a movable fulcrum, means for changingthe position of the fulcrum of said rockinglimembei'i for varying the extent’ of movement of said reaction member and 15 reversing the order‘ of movement thereof for re versing the ' ?ow ‘ of - material along. "said trough, a» connection from‘lsaid-rocking member to said a reaction member for moving saidl'reaction mem ber‘ through a greater- arcjwhen-saidir'ocking 120 member is arranged to convey‘ material along said trough ‘line in‘one directionthan in’ the reverse direction to counteract the conveying-ef fect of said connecting rod and rocking'arm‘when material'is'moved'in a,‘ reversedirection along said trough line, and meansfor'rocking said rocking member ‘comprising an oscillating-mem ber oscillatably driven by said crank 'shaft='and pivoted for movement about 'an axis coaxial with the pivotal axis of said rocking. arm. 12. In a shaker conveyer drive, a driven shaft having a crank thereon, planetary drive gearing for driving said crank at ‘a predeterminedlvari able angular 'velocit'y'including a reaction mem ber movable in opposite directions 'duringleach revolution of said cranhand-means for recipro cably moving said ; reaction memberdini'tirned ‘relation with said: crank ‘including’ a pivotally mounted oscillating "member,- a connection-‘be tween said driven shaft and oscillating member, 40 veyer» trough and a connecting rod connecting said crank with said rocking arm, a planetary crank, said planetary including a reciprocably ‘\ movable reaction member and means for recip rocably moving said reaction member during each revolution of said crank including an ‘oscil lating member driven by the‘ shaft which drives said crank, said oscillating member being oscil <10 latable about an axis coaxial with the pivotal axis of said rocking arm, a rocking member-piv otally mounted on said oscillating member, a link pivotally connecting-one end of said rock ing member with said- reaction-member, a- sup- ‘ portmember adapted to be ?xed from move ment during operation of said conveyer; and-an other link extending in the same general direction as said first-mentioned link pivotally connect ing‘the other end of said‘ rocking‘ member with Q20 said support member.’ ‘ '15. In a shaker conveyer drive, a crank rotat able at a variable-angular velocity, a rocking arm, a connection from said rocking arm to a‘ con veyer trough ‘for reciprocably driving said con veyer trough-and a connecting rod connecting said» crank‘with said rocking arm, aplanetary geared reduction device for driving said crank, said planetary including a reciprocably mov able reaction member, and means for recipro cably moving said reaction member for varying the angular velocityof said crank during each revolution ‘thereof comprising an oscillating member pivotally movable about an axis coaxial 'with the pivotal axis of said rocking arm, ‘a rock 535 ~ing ‘member pivotally mounted on said oscillat inglmember, a-link pivotally'iconnecting one end of "said rocking~member (with said reaction-mem ber, asupport member adapted-to'be ?xed from movement during operation of said conveyer,‘ and ber and reaction -member including a rocking another link extending in ‘the same general di member pivotally. mounted on said oscillating: rectionlaslsaid?rsteinentioned link pivotally ‘con and a connection between" said oscillating mem member, a link pivotally" connecting one end'of necting ‘the > ‘other end I of- said rocking member ' __ said rocking ~member with said. reaction-meme with said support member. ' ‘_ 16. In a shaker conveyer drive, a crank-driven 45 ber, a support member adapted to be-?xe'd from vat a variable angular velocity, a rocking arm, va movement during operation of said conveyer,’ and another link extending in the'same general direc ‘connection'ifrom Said rocking arm to a conveyer ‘trough for- reciprocably' driving said conveyer tion as said ?rst-mentioned linkpi-votally con necting ‘the otheryend of said rocking member trough and a-relatively long connecting rod vcon with said supportr'nember. I ' _ v ' 13. In a shaker conveyer'drive,'a~'driven-shaft necting‘ said? crank with said ‘rocking arm, a planetary‘: geared reduction-‘device for variably having a crank thereon, ‘planetary: drive gearing driving said crank, said planetary including a for driving said crank at a predetermined vari reciprocably >movable ‘reaction member and able’ angular velocity including a reaction mem means 'fo-r'areciprocably moving said reaction 55 ber'movable‘in opposite directions during each member vduring each revolution of said" crank including an voscillating member of a greater revolution of said crank,- and ‘means’ [fOI‘ ~recip rocably moving-said reaction member in timed length thansaid connecting rod and ‘driven by relation'with'said crank’ including a. pivotally the" shaft which drives said crank, ,Said oscillat mounted oscillating member, a’ connection»~be-‘ ‘ing member 'being' oscillatively‘ movable about 60 tween said driven shaft and oscillating-member, an axis disposed parallel ‘tov the pivotal axis of said crank, a rocking member pivotally mounted and a‘ connection between said1 oscillating ‘mem ber and reaction member including a "rocking on said‘ oscillating member, a link pivotally con member,’ pivotally; 'm'ounted-"on ‘said ‘oscillating necting one end ofgsaid 'ro'cking member with membena ‘link’pivotally connecting one end ‘of 65 said rocking memben-with'said reaction-‘member, a rotatable support'member' ‘adapted to be ?xed from'movement? during'operationv ofKsaid-~-con ’veyer, and another'link 'sho'rterithani-sai'd ‘?rst ‘said reaction member, a'support memberadapt ‘ed to‘ be ?xed from movement during operation ' of said conveyer, and another link shorter than said ?rst-mentioned link extending in the same ‘general direction as, said ?rst-mentioned link pivotally connecting the; other end of saidrock mentioned ilinkgand‘iextending in the‘same gen 170 eral direction as said-'?rst-'-mentioned link ‘for ing member with said support member. pivotally connecting the" other end of said rock-v 7, " "17. In a shaker conveyer drive, a crank driven at a variable angular velocity, drive. gearing for ing member with’ said‘ ‘support member. 14. In ar-shaker conveyeridrive, acrank driven _ variablyjdriving saidcrank including a recipro at a variable angular velocity, a~~rocking arm, oably'movable reaction member, means for vary ing‘ the degree of movementof said reaction 75 a connection‘ from saidvrocking'arm t0 aton 2,123,685 member and changing the conveying e?-ect of said drive including a member adjustable about an axis coaxial with pivotal axis of said reaction member, and means for indicating the position of said adjusting member and the conveying ef fect of the drive including an indicating pointer and means on said adjustable member adapted to engage said pointer whereby rotation of said member will move said pointer to a position cor 10 responding to the drive position of the parts. 18. In a shaker conveyer drive, a crank driven at a variable angular velocity, drive gearing for variably driving said crank including a recipro cably movable reaction member, means for vary 15 ing the degree of movement of said reaction member and changing the conveying effect of said drive including a member adjustable about an axis coaxial with pivotal axis of said reaction member, and means for indicating the position 20 of said adjusting member and the conveying e?'ect of the drive including an indicating pointer 7 and a groove formed in the outer periphery of said member and adapted to move said pointer upon rotation of said member to a position cor responding to' the drive position of the parts. 19. In a shaker conveyer drive, a crank driven at a variable angular velocity, drive gearing for variably driving said crank including a recipro cably movable reaction member, means for vary ing the degree of movement of said reaction member and changing the conveying effect of said drive including a member adjustable about an axis coaxial with pivotal axis of said reaction member, and means for indicating the position of said adjusting member and the conveying effect of the drive including an indicating pointer 15 extending transversely of said member, and a spiral guide formed on the outer periphery of said; member adapted to move said pointer upon rotation of said member to a position corre sponding to the drive position of the parts. 20 WILLIAM W. SLOANE.