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May 7, 1963 E. J. SVENSON 3,088,198 APPARATUS PoR ASSEMBLING AND TESTING PUMP PARTS Filed Sept. 11, 1958 6 Sheets-Sheet 1 May 7, 1963 E. J. svENsoN 3,088,198 APPARATUS PoR ASSET/[BLING AND TESTING PUMP PARTS Filed sept. 11, 1958 l A 54 _15.* s ‘sheets-sheet 2 ¿LQ/¿HINT 'Il 525-1154 . lo Qî im Il;\ _105 NN mn uëvê ______ / / "\"\\\`SI 34 y May 7, 1963 .5. J. svENsoN 3,088,198 APPARATUS FOR ASSEMBLING AND TESTING PUMP PARTS Filed Sept. ll, 1958 6 Sheets-Sheet 3 / INVENTOR. jfvzasí Meadow May 7, 1953 E. J. svENsoN 3,088,198 APPARATUS FOR ASSEMBLING AND TESTING PUMP PARTS Filed Sept. ll, 1958 15, / 6 Sheets-Sheet 4 May 7, 1963 E. J. svENsoN 3,088,198 APPARATUS FoP ASSEMBLING AND TESTING PUMP PARTS Filed Sept. ll, 1958 Si@ ___*_T TTT. l,_. l 6 Sheets-Sheet 5 May 7, 1963 E. J. svENsoN 3,088,198 APPARATUS FOR ASSEMBLING AND TESTING PUMP PARTS Filed Sept. l1, 1958 6 Sheets-Sheet 6 A a? 'vlag l N VENTOR. rég/J. llnited States @arent Ü "a" Èßäädgä ¥atented May 7, 1963 2 1 pump, such as the housing, impeller, seal, shaft and bear 3,088,198 APPARATUS FÜR ASSEMBLING AND TESINE» PUMP PARTS Ernest J. Svenson, Rockford, lll., assigner to (Edin Cor poration, Rockford, Ill., a corporation of Illinois Filed Sept. 11, 1958, Ser. No. 769,355 7 Claims. (QL 29_2íi8) This invention relates to improvements in methods and apparatus for assembling and testing parts, and more particularly to an apparatus for assembling the con stituent parts of water pumps, as, for example, water pumps of the type used in automobiles, trucks, and ve ing assembly, and pulley hub; FIG. 5 is an enlarged sectional view of the seal and retaining washer as shown in FIG. 4, more clearly to illustrate the physical nature of the seal per se; FIG. 6 is a detailed horizontal sectional view taken substantially along the line 6_6 of FIG. 4, to show how the opposed peripheral lugs of the retaining washer co operate with the hub portion of the impeller; FIG. 7 is a semi-diagrammatic vertical sectional view at Station No. 1, illustrating the manner in which im pellers are fed into position for subsequent assembly with the pump housing at a subsequent station; FÍG. 8 is also a semi-diagrammatic vertical sectional hicles of like nature. Production line methods have, for a number of years, 15 View at Station No. 2, illustrating the manner in which seal devices are delivered into proper position and tele been used to reduce the cost to the ultimate consumer of such ydevices as automobiles, refrigerators, radio, and television equipment, and the like. The present invention contemplates further reduction in cost to the ultimate scopically associated within the hollow hub portion of the pump impeller which had previously been delivered to Station No. 1; consumer of devices in which a water pump forms a part 20 FIG. 9 is a semi-diagrammatic view similar to FIGS. 7 and 8 at Station No. 3, illustrating mechanism for shift of the general combination. It has heretofore been com mon procedure in assembling devices such as water pumps, to practice methods of assembly which are not consistent with the principle of low cost to the consumer. ing retaining washers into proper position and subse quently, telescopically assembled with the hollow hub It is, therefore, one of the primary objects of the present ously delivered at Station No. 2; invention to provide an apparatus which will insure a FlG. 10 is a semi-diagrammatic view in vertical sec tion at Station No. 4, illustrating the manner in which a pump housing is associated with the irnpeller after the aforesaid seal and retaining washer have been applied to high degree of eliiciency in the assembly and testing of water pumps, and the like. Water pumps of the type contemplated by the present invention consist of a number of parts, such as a pump 30 of the impeller so as to secure in position the seal previ the impeller; FÍG. 1l is a semi-diagrammatic vertical sectional view at Station No. 5, yto illustrate the manner in which shaft and bearing assemblies are brought into preliminary as nipple. Heretofore, manual assembly of the parts just sembled relation with the pump housing; enumerated has not proven to be elîicient, and the pres FIG. 12 is a view similar to FIG. 11 taken at Station ent invention contemplates an apparatus whereby such 35 No. 6, Kdisclosing the association of the pulley hub with parts may be assembled with a minimum amount of the shaft and bearing assembly previously assembled manual elfort and Within limited ñoor space. To this end, With the housing at Station No. 5; the invention contemplates the intermittent advancement FIG. 13 is, likewise, a semi-diagrammatic vertical sec of various parts, beginning with the pump housing, along a predetermined path from one station to another, Where 40 tional View at Station No. 7, illustrating the assembly of a pipe plug with the pump housing; by to accomplish expeditiously and economically the FIG. 14 is a view similar to FIG. 13 and is taken at assembly and ultimate testing of the pump structure. Station No. 8 to illustrate the assembly with the pump It is a further object of the present invention to ac complish the assembly and testing of pump structures by 45 housing of a water by-pass nipple at Station No. 8; FIG. 15 illustrates the mechanism for transferring a directing constituent parts into the above mentioned pre previously assembled pump structure from Station No. determined path, shifting such parts into their proper as 9 to Station No. l0 after the pump housing has been un sembled relation during periods of intermittent dwell housing, impeller, seals, retaining washer, shaft and bear ing assembly, pulley hub, pipe plug, and water by-pass and finally subjecting the assembled parts to operational testing after removing the pump structure from said pre determined path. lt is a further object of the present invention to em ploy as far as possible, standardized equipment at the various stations of assembly md, thus, reduce to a mini mum added costs which would otherwise result when clamped from its supporting fixture; FIG. 16 illustrates the manner in which the completely assembled pump structure is subjected to testing at Sta tion No. 10, from which station defective pumps are de livered to a reject point and satisfactory pumps are de livered to a conveyor; FIG. 17 is a plan View of a completely assembled pump as supported and clamped upon its iixture prior The foregoing and other objects and advantages will to delivery to the testing station; be more apparent from the following detailed description FIG. 18 is a plan vieW of the pump shifting mechanism when considered in connection with the occompanying illustrated in FIG. 15, said view being taken substantially drawings wherein: 60 along the line 118-18 of FIG. 15; FIG. 1 is a plan diagrammatic View of apparatus which FIG. 19 is a detailed sectional view of the clamping may be employed in the practice of methods contem mechanism for supporting a completed assembled pump plated by the present invention; structure prior to its being shifted from Station No. 9 FIG. 2 is a fragmentary elevational View taken sub to Station No. 10, said view being taken substantially stantially along the line 2_2 of FIG. l; 65 along the line 19_19 of FIG. 15, with the pump struc FlG. 3 is an enlarged vertical sectional view taken ture shown in elevation; and along the line 3_3 of FIG. 1, Showing the position oc FIG. 20 is a detailed sectional View of the aforesaid cupied by the pump housing after it has been delivered clamping mechanism taken along the line 2li-2U of FÍG. 15. to and located upon a supporting ñxture; FlG. 4 is a vertical sectional View taken along the 70 Referring now to the drawings more in detail, wherein line 4_4 of FlG. l at Station No. 8, more clearly to il like nurnerals have been employed to designate similar lustrate the assembled relation of constituent parts of the parts throughout the various views, it is deemed advis specially designed equipment is employed. 3,088,198 3 able to facilitate understanding of the present invention 4to describe one form of water pump of the type capable 4 able, oppositely disposed lugs 76 carried by the pin.72 (see FIG. 7) cooperate in properly locating the impeller of being assembled by practicing the method contemplated 26 as it is shifted from the position shown in FIG. 7 to the position shown in FIG. “8. It will be noted that the fixture plate 60 is resiliently mounted upon the table 46 that the pump is designated kgenerally by the numeral by means of coil springs 7S. Having telescopically asso 22. This pump 22 includes a pump housing or casting ciated the impeller 26 with the pin 72, the plate 60 is now 24 which encloses animpeller 26. The impeller 26 is ready to be advanced from Station No. 1 to Station No. 2. carried by a shaft 28 of a shaft and bearing assembly designatedA generally bythe numeral 30, FIGS. l1 to 13, Station No. 2 inclusive. Also carried within a hollow hub portion 32 10 At Station No. 2 (see FIGS. l and 8), a supply of seal-r of theim'peller 26 is a sealing device 34, best shown in ri-ng devices 34 is maintained Within Va suitable hopper 80.A ÈIG, 5. This sealing device 34 is held in place Within From the hopper 80, »these seal devices are supplied to a. the hub extension portion 32 of the impeller by a retain conventional feeder device 82. This feeder device in-y ingmember orwasher 36 (see FIGS. 4 to 6, inclusive). The Washer 36 is provided with oppositely disposed pe 15 cludes a suitable ichute S4 for directing seals34 to the dotted line position shown in PIG. 8. From this position, ripherallugs 38, which are lodged within the comple a conventional ‘hydraulic actuator 86 is adapted to shift mentary recesses provided in the hub portion 32. The the seal to the solid line position, in coaxial alignment outer extremity of the shaft 28 >carries a pulley hub 40; and as shown inVFIGS. 13 to 17, inclusive, there is asso- . with the previously mentioned pin 72 on `one side and a cia'ted with the pump housing 24 a pipe plug 42 and a by 20 |hydraulic’actu-ator S8 on the opposite side. Advancing movement of the actuator 88 causes the seal 34 to be pass nipple 44. hereby.V It will be seen from a number of the figures The present invention contemplates improved methods telescopically associated with the pin 72 so as to occupy the position illustrated in lFIG. 9‘. In this position, the and apparatus whereby the pump parts referred to above seal 34‘is held within the hollow hub portion 32 of the may-.be assembled into a completeV pump structure, and thiscomplete pump structure tested under operating con 25 impeller 26. The impeller and associated seal are now in readiness to be moved from Station No. 2 to Station ditions with a minimum amount ofeifort and skill on the No. 3 in response to the functioning of the aforemen part of an operator- and with the expenditure of a mini tioned hydraulic actuator 48. mum amountV of time. Referring to PIG. l, it will be seen that one form lof'apparatus for assembly and testing Station No. 3 ' pump structures `of the type referred to above incorporates 30 A-t Station No. 3, Ia hopper 90 retains a supply of re an «intermittently rotatable table 46. This table is prefer taining washers 36. These washers are supplied to a conf ablyY of annular shape as viewed in plan and is adapted ventional feeder> mechanism ‘92, and are directed by a to be shifted intermittently through the agency of a suit chute 94 to the dotted line position illustrated in fFIG. 9. able actuating mechanism, such as a hydraulic actuator 48.- 'Ihis- actuator 48 is designed to shift a feed pawl 50 35 From thisV position the retaining washer may be ad vanced by a hydraulic actuator 96 from the dotted line forwardly and rearwardly to impart intermittent move position to the solid line position illustrated in FIG. 9; ment tothe tablel in the directionindicated by the direc In this latter position, the retaining washer 36 is located tional arrow in FIG. 1. The pawl 50 is adapted to engage in axial yalignment with the pin 72 and a hydraulic actu aratchetmember 52 supportedby a vertical shaft 54. As the pawl 50 reaches the limit- of its forward movement, a 40 ator 98.y The hydraulic actuator A98 carries an actuating member or head 10i), which is equipped withoppositely suitable spring pressed index pin 56 interlocks with a disposed lugs 102. As these lugs move downwardly, complementary recess in a disc memberV 58 so as to secure they are brought into engagement with complementary Ythe table 46 in a fixed position during the retracting stroke oppositely disposed lug portions G8 (see FIG. 6) of the of thepawl 50; It is this-forward actuating movement of the pawl 50 which causesthe table 46 to be intermittently 45 retaining washer so as to move said lug portions into regisf tration lwith complementary recesses in the wall `of the advanced so as to move a work-holding-Íìxture or plate 60 impeller hubV3-2. During this step in the operation, the Ifrom one station to another, these stations being indicated retainingwasher is pressed against the upper or outer as Ystations numbered from l to 9. It is during the dwell side o-f the seal device 64, as` clearly shown in FIG. 10. of the table 46 occasioned during the retracting stroke of the pawl 50 that the various assembly and testing opera 50 With the retaining washer 36 thus assembled with the impeller hub 32, the supporting fixture 60 is advanced tionsV about to be described, take place. Station No. 1 Y At StationNo. l, an impeller 26 is delivered to a com plementary fixture plate 60 from a suitable impeller feeder designated, generally, by the numeral 62. This feeder may be of any conventional design adapted to supply parts fromY Station No. 3 to StationrNo. 4. Station No. 4 As illustrated in FIG. 1, an operator removes a pump housing 22 from a conveyor 104 and places the housing in Vsuperimposed relation with respect to the impeller 26 and down a chute to a position of association with the ñxture parts previously vassembled therewith. Thus, las shown y6I). A hopper 64 of conventional design may be used to in FIG. 10, the housing 22 is manually located byY dowels keep the feeder mechanism `62> supplied with impeller 60 1106. lIn thisposition, the housing is in readiness to be parts. Referring to FIG. 7, it will be noted that the in yclamped against the supporting ñxture Á60 by a suitable vention contemplates the direction ofA impeller parts from clamping device designated, generally, by the numeral the feeder 62 through a chute 66. In the vicinity of the 108. ‘In- FIG. 3, the clamping device |108 is disclosed . I bottom of the chute 66 is a hydraulic actuating device or more in detail. To shift the pivotally mounted clamping mechanism V68, which, at the proper interval of time, 65 device 103 from unclamped to clamped position, a con» moves forwardly to shift an impeller located in the vicinity ventional hydraulic actuator mechanism .110 may be em of the bottom of the chute (dotted line position) to the ployed. As the pistonv of this actuator advances, it is solid line position immediately beneath a secondhydraulic brought into engagement with the clamping device 108 so as to firmly clamp the housing in position upon the actuator 70. This hydraulic actuator 70 is employed to push the impeller 26downwardly into telescopic associa 70 plate 60. In fact, it is preferred to employ a pair of clamping devices Iand consequently, a pair of hydraulic 'tion with an upwardly projecting pin 72. This pin 72 is 4shiftedly supported Vwithin the fixture plate 60 and is resil actuators, as shown in FIG. 1. With the housing >properly locatedwith respect to the impeller, seal, and retaining washer as `shown in FIG. l0, the supporting fixture plate through the agency of a coil spring, the function of which will be more `apparent as the description progresses. Suit 75 l60 mayl now be shifted so as to advance it to Station No. 5. ieutly urged upwardly within . a depending portion 74 3,088,198 6 5 Station N0. 9 Station No. 5 'on No. 5, shaft and bearing assemblies 30 are At Station No. 9, FIG. 15, the previously assembled pump structure must be unclamped from the supporting fixture or plate 66. This is accomplished by hydraulic actuators 148 (see FIGS. 1 and 15). These hydraulic dìrîctztêdailrom a feeder 112 through a chute 114~t_o the dotted position `shown in FIG. l1. From this position, a hydraulic actuator 116 is adapted to shift the assembly 30 into axial alignment with a bearing sect1on of the pump actuators 148 function simultaneously so as to engage the housing 24 and a hydraulic actuator 118. The actuator l118 serves to move the `assembly 38 downwardly into telescopic `association with the bearing section of the hous clamp structures 108, as illustrated in FIG. 15. This causes the clamps 108 to become disengaged from the pump housing 24, thus permitting the coil spring 118 to urge the pin 72 upwardly. The upward movement of the pin 72 causes the pump housing 24 to become disengaged from the locating pins 1116, and the pulley hub 40 is ing 24. As the shaft y28 of the :assembly .116 moves down wardly into the pump housing, it 1s brought into engage ment »with the upper extremity of _the pm 72 and forces the pin 72 downwardly so as to eject 1t from telescop1c forced between a pair of clamp jaws 151i (see, particularly, association with the retaining washer 36 «and the seal 34. FIGS. 18 to 20, inclusive). The extent of upward move ment of the supporting fixture or means 60 is limited by The pin 72, when thus shifted by .the shaft 2S of the as sembly 30, compresses a coil spring 118 interposed be the head of a pin 149 (FIG. 3). 'I'hese clamping jaws 151D are resiliently urged toward each other by coil springs tween a collar 121i= secured to the pin 72. and a threaded 152 housed within a frame structure 154. The entire pump unit has now been elevated to a position which will permit a fork member 156 to pass beneath the flange por iton of the pulley hub 40. The advancement of the fork plug 121. In other words, the pin 72 1s moved down wardly against the yieldable res1stance of the spring 118.. In this manner, the shaft and bearmg asesmbly 3G _1s ulti mately shifted to its position of lfinal assembly w1t-h the pump housing, »as shown in FIG. l2. '_The Iforced fit of 156 is accomplished by a suitable hydraulic actuator 158. This actuator 158 is pivotally supported at 160, FIG. 15, and the opposite portion of the actuator, namely, the piston rod, carries a pair of rollers 162. As these rollers the bearing portion of the assembly 3i) within the comple mentary wall portion of the pump housing is suñicient to prevent the force of the spring 11S from dislodgmg the as sembly lfrom the housing. With the assembly 30 thus associated with fthe pump housing, the pump structure is in readiness to be shifted to Station No. 6. 162 advance along the upper surfaces of elongated cam or rail members 164, they are eventually brought into con tact with the rise 166 of said cam members. At this point, the fork 156 has reached a position beneath the pulley 30 Station N0. 6 hub 40 and, thus, the entire pump structure is elevated suñiciently to clear the upper projecting portion of the At Station No. 6 (see FIGS. 1 and 12), pulley hub pin 72. Continued advancement of the `fork 156 causes members 48 are directed from a suitable feeder 1122 the pulley hub 4@ to be disengaged from the clamping through 1, servesatochute retain124. a supply Conventional of hub members storage means, 4t) `for deliv jaws 159 and ultimately shifted to the dotted position 35 shown in FIG. 15. At this position, the housing has be ery to the `feeder 122. A hydraulic `actuator 128 vserves lto shift hub members 40 from `the dotted to the solid lme come located at Station No. 10 in readiness for testing. position shown in FIG. l2. A hydraulic «actuator 130 Station No. 10 then functions to telescopically associate the hub mem ber 40 with the exposed portion of the shaft 218 of .the 40 As the fork 156 is disengaged from the pulley hub 40 assembly ‘30. With the hub `member 40 thus forced into position upon the shaft 28, the pump structure may now be shifted to Station No. 7, through the agency of the upon the return stroke of the actuator 158, the pump structure is brought to rest upon a plate 16S, FIG. 16. This plate 168 functions in the nature of a sealing plate At Station No. 7, FIG. 13, water plugs are directed gagement with the outer extremity of the water by-pass nipple 44. Simultaneously, a second hydraulic actuator from a suitable -feeder 132 through a chute 134 into axial 176 causes a sealing and water conducting head -178 to and carries a water inlet conduit 170. As the pump struc actuator 48 which operates the pawl 50 previously de ture is located in this position, a hydraulic actuator 172 45 scribed. function to move a sealing member 174 into sealing en Station No. 7 alignment with a torque wrench mechanism designated, 50 be sealed against the outlet passages 180 of the pump structure. A third hydraulic actuator 182 causes a rotary generally, «by the numeral 136. This mechanism 136 may torque mechanism 184 to be moved downwardly into be of the conventionally rotatable overload release type; driving engagement with the pulley hub 40. This causes and as it is moved forwardly during the rotation thereof the pump to be rotated at its required speeds, and water by a suitable hydraulic actuator :138, the head of the plug 42 is engaged so `as to cause the plug to be screwed into a 55 directed through the inlet conduit 170 and outlet con complementary aperture in the pump housing. Upon retract-ion of the torque mechanism 136 following the proper positioning of the plug y42, the assembled pump unit may -be shifted to Station No. 8. Station N0. 8 At Station No. 8 (see FIGS. 1 and 14), water by-pass nipples 44 are directed from a suitable feeder mechanism 140 through a chute 142 to the position in FIG. 14. A hydraulic actuator l144 then functions to move a conven duit 186 is subjected to normal operating conditions. If the pump meets the required high and low pressure tests, the completely assembled structure is now in readiness to be shifted by a suitable unloading position designated, 60 generally, by the numeral 188, FIG. 1, to a finished unit conveyor 199. If the pump, as tested, does not meet the prescribed requirements for test, it is shifted to a reject conveyor 192. By having thel pressure testing conducted at a point spaced outwardly from the path of movement 65 taken by the pump parts during the assembly thereof, splash and drain conditions incident to the testing opera-tional rotatable torque wrench mechanism 146 to the right, tion does not interfere or in any way contaminate the FIG. 14, into engagement with the head of the water by~ parts being assembled at the various stations along the pass nipple 44. This causes the nipple 44 to be screwed predetermined path of assembly. Various conventional into a complementary threaded aperture in the pump pressure responsive and indicating devices (not shown) 70 housing. After the nipple 44 has been secured in position, may be employed in performance of the tests. actuator 144 serves to retract the torque wrench mech Obviously, conventional hydraulic units, such as the anism 146, and the pump unit is now ready to be shifted units 194 and 196 as well as the control console 198 to Station No. 9. All of the constituent elements of the diagrammatically illustrated in FIG. l, may be used to pump have now been assembled and the device is ready control the automatic functioning of the mechanisms pre 75 viously described. It is not necessary for a clear under for testing. 3,088,198 7 8 tion to the alignment Ielements of successive assembly standing of the present invention to include all of the de tails of such arrangements-'and it will suihce to say that iixtures moved into said one station, a later one of said stations `constituting a housing applying station, pump »shaft supplying means mounted to -supply >pump ¿shafts to a'third one of said'stations, Vpump shaft applyingmeans »A the _various-.hydraulic >actuators and the'like previously described maybe automatically controlled from a central .fpoint in a manner-wellknown to those skilled in this par . ticular -art. y. Applicant is a hydraulic engineer of long (standing, andas will appear from many patents which »have been-issued to him, hydraulic units, actuators and thelike, as well as controls therefor, have heretofore been used extensively in instances Where sequential, timed func t-ioning> of machine elements and the like is required. Y - located` at said third station for applying' pump `>-shafts to >successive housing encased pump impellers‘supported-by > successivev assembly'ñxtures moved into ‘said‘third-station, pump receiving means disposed 'in coacting relation tofa 10 still later one of said stations to receive assembled pumps » moved into lsaid last mentioned'station, track‘meanssup porting said pump receiving -means andextending away yfrom said last »mentioned station, hydraulic vactuating From the foregoing, it will beapparent that the present invent-ion makes itpossible to perform, in sequence, as sembling operations, and finally 'a testing operation which _makes for ~increased eiliciency, aswell as accuracy‘in'pro . duction. means operating at -said las-t mentioned' station- tofm‘ove said pump‘recei-ving means along said `Stra-ck ‘means-to transfer successive Iassembled pumps `away from'said last - mentioned station, and'said track means bei-ng shaped to ' effect lifting of said receiving meansand the assembled ~ pump supported thereby upwardly from the housing'lo By-intermittentlyrmoving pump parts along a ,"predetermined.pathithrough a series of'assembly stations, Y and'finally to a-testing station, manual labor is reduced to a` minimum, and the entire operation may be carried on Within a -very limited floor space or area. The latter 20 eating means ofthe associated assembly'«?xture'automati is o_f extreme importance in these days of high costs of -cally as an incident to movement of‘said receiving means along the track means by said »actuating means. ' building construction. ` `Furthermore, the assembly opera tions or steps previously described may be carried out by 3. ’Apparatus vfor sequentially ‘assembling Vandv'te'sting -unskilled persons, as distinguished from previously known » pumps comprising, in combination, a rotatable assembly methods and apparatus requiring the use of skilled Work 25 table, an'fannular. series of support `iixtui‘es on said table, men. « indexing' means coacting with said table'tointer'mittently . ÍWhile -certain specific disclosures have been made here - index the latter rotatably to move said fixture-s vto ’succes t infthe invention isnot, of necessity, limited to such dis~ sive ones cfan annular 4series of stationsyeach of‘said ¿closures- but vshouldrbe construed inthe light and Within lfixtures including a -`depressible locating plungerspring . the scope of claims appended hereto. 30 urged upwardly to a normal position; aplurality‘of‘said stations being equipped respectively with impeller supply VThe invention is herebyY Vclaimed as follows: 1. Apparatus-for sequentially assembling pumps, com means, sealing element »supply means, washer supply means,`-pump'shatft and bearing supply means, and >pulley nprising, in'combinatiOn, a rotatable assembly table, a series of circumferentially spaced assembly fixtures mount hubïsupply means; hydraulically actuated transfer- means >edïon said table,»spring means yieldably supporting each 35 associated with'each of said plurality ,of‘stationstoïtrans V'of said iñxtures, indexing means coacting -withsaid table :ferparts from theassociated supply means intooverlying concentricrelation -to the locating plunger of the fixtures dor vintermittently indexing v»the latter to a succession of »angularly spaced positions to locate the individual as positioned 'in the associated station, hydraulically'actu sembly -iixtures in a succession ofy assembly stations, pump ated pusher >means'm‘ounted at'each of said> plurality 'of impeller >supplying means located ata -ñrstpf'said as 40 stations to move a' par-t Ifrom' the associated transfer means sembly-stations, pump impeller applying means at said :axially Vinto an 'assembled position von the iixture in the fiirstf'sta-tion for applying a pump impeller to the- assembly . associated station, pump housing clamping means onfeach »dixture >in said'ñrst station, eachassembly -iixture'includ Ving va yieldably supported depressible impeller locating ' of -said tixtures, an intermediate one of said“ stations con stitutinga housing assembly station andL beingY equipped f element, sealing device supply» means located `at a second 45 with hydraulic actuating means for' applying the-housing Vofvsaìd stations, sealing device applying means at said Ysecond-station ttor applying-a `sealing device to a pump clamping means of the fixtures in «the housing assembly station, another :one of Vsaid stations constituting a trans ” ter station equipped with hydraulically vactuatedhousing I ini-pellet~ supportedY by «the lassembly lixture in said second »f station, each Iof said Iassembly'iixtures including housing clamp releasing means, two yieldably supported pulley v clamping means, clamp applying means located at athird 50 hub guide jaws located at said transfer station in elevated _one ofvsaid stationsfor Veñecting clamping of a pump positions to receive therebetweenthe pulley hubsorf pump >Vhousingapplied to avpump impeller supported by the » »assemblies moved into the transfer station and released by assemb-lyfñxture in the thirdV station, pump shaft supply means located Vat a -fourth- one of said stations, pump shaft ^ the coacting housing vclamping means, a transfer track extending across said transfer station to a testing station applying means at said -fourthstation for applying a pump 55 out >of the annular path of said fixture, a pump> assembly ï- shaft to'a housing encased pump impeller supported by transfer fork supported on said track, hydraulic actuating -the assembly jiixture in said'fourth station, transferY means means coacting with said fork» to move- the latter along ylocated at a íifth Vone of'said stations for transferring -rto «a testing station successive assembled pumps ' moved said track to transfer pump assemblies from vsaid transfer station to said testingstation,- said track-including arise therein which `eñîectslifting of a pump :assembly ìfrom said fro-the fifth stationbysaid 'assembly fixtures, pump driving » means at said testing» station movable into driving relation Y fto«.an assembled pump-in- said »testing station, andñuid ~ supply >and discharge means ‘at said «testin g station movable into connected relation to a pump in said »testing station. Y2. Apparatus «for-sequentially assembling’pumps on> a Ymass productionl basis, comprising, in combination, an transferV station by said yfork .as an incident to transfer of u the pump assembly to said testingstation, and hydrauli `cally actuatedsealingand testing means located in said -testing station for coaction' with pump assemblies trans 65 `ferred to said testing station. l t '4. Apparatus'for sequentially assembling ‘water’ pumps, f interconnected series of. assembly hutures, indexing means ~ rfor intermittently indexing said ñxtures in unison to lo » series of .iixture plates‘loc'ated 'onV saidtable'v in circum >catethe individual tix-tures in successive assembly sta ferentially spaced relation to each other, coiled'compres comprising, in combinationpa'rotary table, `an «annular tions, A each- of said fixtures including »upwardly protruding 70 -sionY springs yieldably supporting each of ‘said-.plateson `housing locating means and includingia `depressible align ?said table, a depressible locating plunger mounted iueach - ment element which'protrudes upwardly, Virnpeller sup ' fixture plate andrfbeing spring urged upwardly to a guiding y.plyirig meansufor'supplying pump impellers to one of said position projecting Aabove the coactingplate, indexing meansvcoacting with said table to index the latter rotat »î stations, Vimpeller applying means located at said one `-ïstat'io'n'for ’applyingrpump' impellers into intertltting rela 75 ably to movefsaid plates‘to successiveïon'es'of 'an annular 3,088,198 9 one of said stations, hydraulically operated impeller concentric relation to the locating plunger of the fixtures positioned in the associated station, hydraulically actu transfer means »at said first station for moving pump ated pusher means mounted at each of said plurality «of series of stations, pump impeller supply means at a first impellers from said supply means into overlying coaxial stations to move a part from the associated transfer means relation to a locating plunger indexed into said first sta tion, hydraulically lactuated pusher means in said first axially into an assembled position on the fixture in the associated station, pump housing 4clamping means on each of said fixtures, an intermediate one of said stations in station positioned to move impellers downwardly from the impeller transfer means into telescoped relation to »said series constituting a housing assembly station and being equipped with hydraulic actuating means for ap plying the housing clamping means o-f the fixtures in the housing assembly station, another one of said stations constituting a transfer station equipped with hydraulically the plunger in said first station, ‘seal supply means posi tioned to supply seals to a second one of said stations, hydraulically actuated .transfer means positioned at said second station positioned to transfer seals horizontally into overlying coaxial relation to a locating plunger in actuated housing clamp releasing means, ya transfer track said second station, hydraulically actuated pusher means extending across said transfer station to a testing station positioned in said second station to move seals down 15 out of the annular path of said fixture, pump assembly wardly from the seal transfer means into telescoped rela transfer means supported on said track, hydraulic actuat tion to a locating plunger in said second station, washer ing means coacting with said transfer means to move the latter along said track to transfer pump assemblies from supply means positioned in a third one of said stations, hydraulically actuated transfer means positioned at said said transfer station to said testing station, and said track third station for moving washers horizontally from said 20 including a rise therein which effects lifting of a pump washer supply means into overlying coaxial relation to a assembly from said trans-fer station as »an incident to the plunger in said third station, ya hydraulically actuated beginning of transfer movement of the assembly to said testing station. pusher mounted in said third station to move washers 6. Apparatus for assembling water pumps, comprising, into telescoping relation to locating plungers therein, each of said fixture plates including housing locating projec in combination, a rotary table, an annular series of as tions thereon, pump housing clamp means associ-ated with sembly fixtures mounted on said table, a depressible lo cating plunger mounted in each fixture and -being spring urged upwardly to a projecting guiding position, indexing constituting la housing loading station equipped with means coacting with said table to index the latter rotatably hydraulic `actuating means for operating the housing clamps of fixture plates moved into the fourth station, 30 to move said fixtures through a series of stations, hydrau each of said fixture plates, a fourth one of the stations shaft and hearing feeding means positioned in a fifth one of said stations, hydraulically ractuated transfer means mounted in said fifth station for moving shafts and bear lically operated impeller transfer means at said first one of said stations for moving pump impellers into overlying coaxial relation to a locating plunger indexed into said ings horizontally into overlying -coaxial relation to locat first station, hydraulically actuated pusher means in said ing plungers indexed into said fifth station; hydraulically 35 ñrst station positioned to move impellers downwardly from actuated pusher means positioned in said ñfth station for the impeller transfer means into telescoped relation to moving shafts and bearings downwardly into telescoped relation to housings, washers, seals, and impellers located in the fifth station thereby depressing locating plungers actuated seal transfer means positioned in a second one the locating plunger in said first station, hydraulically of said stations to transfer seals into overlying coaxial rela in said fifth station, pulley -hub ‘feeder means in a sixth 40 tion to a locating plunger in said second station, hydrau lically actuated pusher means positioned in said second one of said stations, hydraulic transfer means for moving station to move seals downwardly from the seal transfer said pulley hubs horizontally into coaxial relation to means into telescoped relation to a locating plunger in pump shafts in said sixth station, hydraulic pusher means said second station, hydraulically actuated washer trans positioned in said sixth station for moving pulley hubs fer means positioned in a third one of said stations for axially into assembled relation to ptunp shafts, another one of said stations constituting a transfer station in which ‘two pulley hub guide jaws are yieldably mounted in elevated positions, hydraulic `clamp release means po sitioned in said transfer station to release housing clamps therein to effect upward movement into guided relation 50 to said jaws of a pump assembly in said transfer station yby the spring urged locating plunger in said transfer sta tion, a transfer fork supported on :a track extending across moving washers into overlying coaxial relation to a plunger in said third station, a hydraulically actuated pusher mounted in said third station to move Washers axially into telescoping relation to locating plungers therein, pump housing clamp means associated with each of said fixtures, a fourth one of the stations constituting a housing loading station equipped with hydraulic actuating means for op erating the housing clamps of fixtures moved into the fourth station, hydraulically actuated transfer means the transfer station to a test station, hydraulic actuating means for moving said transfer fork `along said track to 55 mounted in a fifth one of said stations for moving shafts move pump assemblies from said transfer station to said test station, said track defining a rise therein alined with said transfer station to effect lifting of a pump assembly from said `transfer station for movement to said »test sta tion, and pump testing means mounted in said test sta tion for testing pump assemblies moved thereinto. 5. Apparatus for sequentially assembling 'and testing pumps comprising, in combination, a rota-table assembly and bearings into overlying lcoaxial relation to locating plungers indexed into said fifth station, hydraulically ac tuated pusher means positioned in said fifth station for moving a shaft and bearing downwardly against a locat ing plunger in the fifth station and into assembled posi 60 tions on a fixture in said fifth station, hydraulic transfer means for moving pulley hubs into coaxial relation to pump shafts in a sixth one of said stations, hydraulic pusher means positioned in said sixth station for moving pulley hubs axially into assembled relation to pump shafts, indexing means coacting with said table to intermittently 65 table, an annular series of support fixtures on said table, index the latter rotatably to move said fixtures to suc cessive ones of an annular series of stations, each of said another one of said stations constituting a transfer station, pump assembly guide means positioned above said trans fer station, hydraulic clamp release means positioned in fixtures including a depressible locating plunger spring said transfer station to release housing clamps therein to urged upwardly to a normal position; a plurality of said stations being equipped respectively with impeller sup 70 effect upward movement into guided relation to guide means of a pump assembly in said transfer station by ply means, sealing element supply means, washer supply the spring urged locating plunger in said transfer station, means, pu-mp shaft and bearing supply means, and pulley hydraulically actuated transfer means for moving pump hub supply means; hydraulically ‘actuated transfer means assemblies from said transfer station to a test station re associated with each of said plurality of stations to trans fer parts from the associated supply means into overlyin-g 75 moved from the rotary path of said fixtures, and pump test 3,088,198 11 12 ing means mounted in said test station »for testing pump pulley hub feeding means in a sixth one of said stations, hydraulic pusher means positioned in said sixth station for ’ assemblies movredthereintû- ' 7. Apparatus for assembling centrifugal pumps, com prising, in combination, a rotary table, an »annular series of assembly ñxtures -on saidtahle, a depressigble locating moving pulley hubs axially into assembled Yrelation to pump shafts, another> one of said stations constituting a transfer station equippedwith hydraulic clamp release plunger mounted inveach fixture, indexing means coacting means lfor releasing Vthe housing clamps on ñxtures moved into the transfer station, hydraulically actuated transfer means for moving pump assemblies from said transfer with Vsaid table to index the latter to move saidv ñxtures through a series of stations, pump impeller `feeding means at a _iirstone of said stations,y hydraulically actuated -pusher means positioned atsaid Vñrst station to move impellers 10 station to a -test station removed `from the-path of said axially into telescoped relation to the plunger in alíixture fixtures, andrrpump testing means mounted in said test station for testing pump assemblies moved thereinto. in said ñrst station, Iseal feeding means positioned to feed impeller seals to asecondone of said stations, hydraulical ly actuated pusher means positioned insaidsecond station ReferencesvCited in the tile of this patent UNITED STATES PATENTSY to move seals axially into telescoped relation to a locating 15 plunger in said secondistation, Washer supply means posi tioned in a third one of said stations, a hydraulically actu ated pusher mounted in saidthird station to move washers into telescoping relation to locating plungers therein, pump housing clamp means associated Withveachof said fixtures, akfourthone ofthe stations constituting a housing loading wstation equippedr with hydraulic >actuating means for _oper ating the housing clamps of fixturesV moved'y into said fourth station, shaft and hearing feeding means positioned Vin a'fiith one of said stations; hydraulically actuated push er means positioned in said tifth station for moving shafts and hearings axially into telescoped relation to housing washers, seals, and impellers located in said ñfth station, 20 25 2,191,917 2,207,371 Sheldrick __________ ____-._ Feb. 27, _1940 Blackmore _____________ __ July 9, 1940 2,297,950~ FlaWS ...... -Y__.___,....____.. Oct. 6, 1942 2,339,807 Rau __________________ .__ Ian. 25, 1944 v2,380,742 Flaws ________ _i____k____- July 31', 1945 2,431,279 Remington ..-7---.____ __ NOV. 18,1947 2,620,553 Schultz ______ __...._.._Y........_ Dec. 9, _1952 2,734,258 Schultz ...... _.. 2,746,132 oliver ...... __V_V__V__-_V__ May 22, 1956 2,753,619 Franklin ____________ _'___ July l0, 1.956 ___ Feb. 14, 1956 OTHER REFERENCES “New Techniques Build ’57 Cars,” American Machinist, pages4145-147, November 5, 1_956.