US2538400A - Elevatable scoop control mechanism - Google Patents

Description

Jan. 16, 1951 E. B. WAGNER ET AL ELEVATABLE SCOOP CONTROL MECHANISM 5 Sheets-Sheet 1 Filed Dec. 17, 1946 INVENTORS W A8 M e g 0 J BY g.

A tiorne Jan. 16, 1951 E. B. WAGNER ET AL 2,538,400

ELEVATABLE SCOOP CONTROL MECHANISM Filed Dec. 17, 1946 3 Sheets-Sheet 2 fi 4 INVENTORS Hera/c1 A. Wagner BY EJJie B Wagner A fiorney Jan. 16, 1951 WAGNER ET AL 2,538,400

ELEVATABLE SCOOP CONTROL MECHANISM Filed Dec. 17, 1946 5 Sheets-Sheet 3 7. 79 /o 02 a FY' /06 INVENTORS. Harv/cl .4. Wagner BY EJJie BM/a gner' Attorney Pafentecl Jan. 16, 1951 ED 51m ES PATEN OFF CE:

Eddie B; WagnerandHaf-oldA. Wagner;

Portland, Oregfl 5 The present invntibn' relafie's to the ai-t=of handling "materials; the ihi enfiibn comprising a" material' -handiihg mahi'ne; prferab ly the ma hifi'e' being of the 'autbm'etive or self propelling' types It is to be app fieiate d that the inventionher disclbsed and claiined may beuiiil'izetl in a' is-taiiionary type of machine adapied to be permanentlylecajteel in wiiiglepbsitiiin or' moved f om place '06- pla ce 21nd."-'-'fi5;e' F in locatibfis off-use; but that-it i pfefrfed that thednvenfion b'e'ih cerpdratd ih an automotive vehicle;-

-The purpese of the pre'sefifi'ihvenfidri is toprm vide av'new -a.nd imprevd m'eha-nism for raising gmd lbWr-ing"a -matrialhafidfihg device" albng substantiallyvertia1 tower; the materialhandling device being capwhl of-substitution 0f' 0ne=type-for another-type? Far-"example,- the dev ibe may compri-se arscoep adapted to scoop coal; gravel; sand, grainsand o'th'er ''m2teri'a1s' 0f the sime' general nature; elvatethe se'eop'eri lo'a-d 0f scooping position under the force of gravity, and

tfieapplication-of power"-to'-the =device controllingmechanism will; be effective "first; to elevatethe metteri al handlingdevice456 anupr'i'g-ht or ma tel ialearrying position,- and thereafter to elevate thedevice "alongfih towerup'onwhichthedvic 11501911115; (01. fle -120):

comprising a, cable a prising 2; eable adaiptew wOund'fr'd if u of tli m-terla afil' lih der 'matiiml cohti" corporatewthefei- I Fig. 2 is' a ffdht elvafiibh bfthe taker-e Fig. 5 is a View in elevation, with parts broken away, taken substantially from the plane cut by the line 55 of Fig. 2;

Fig. 6 is a horizontal section taken from line 6-5 of Fig. 5; and

Fig. 7 is a vertical section taken from the line l--'! of Fig. 5.

The invention as illustrated and described comprises an automotive vehicle generally indicated by the numeral l having an engine therein for the purpose of propelling the vehicle from place to place and otherwise operating the. material-handling device, the engine (shown in skeleton outline in Fig. being connected to front driving wheels H mounted upon an axle extending from a transmission housing I4 in any of the usual manners. The engine is adapted to be connected to the wheels I I through the medium of any usual transmission mechanism under control of a clutch (not shown) and a gear-shift lever i5, and the wheels are adapted to be locked in a selected position by braking means (not shown) under control of a brake-control mechanism exemplified by the brake lever I6. The vehicle may be steered from place to place by turningthe single, centrally disposed, rear wheel 12, which is mounted on a fork ll suitably supported on the body of the vehicle I0 and connected to a curved arm I8 having a tiller bar I9 suspended from its forwardly extending free end. The operator of the vehicle, seated in a seat 20, may at will connect the engine to the front driving wheels through the gear-shift lever 15, release the brakes through the brake lever E6, and steer the vehicle from place to place by shifting the tiller l9. It is to be appreciated that other forms or styles or designs of automotive vehicle may be substituted for the one herein illustrated without departing'from my invention, or that the machine could comprise a semistationary, platform-mounted device without departing from the invention.

The machine comprises a substantially vertical tower, generally indicated by the numeral 25,-;including spaced upright angle bars 26 and Zlextending from a point near the ground adjacent the front of the machine to a suitable elevation above-the body of the machine. The angle bars 26 and 27 comprise vertical guiding means f or guidi ng a carriage 30 adapted to be raised and: lowered along the tower, the carriage being provided with vertically spaced, flanged wheels 3| and 32 adapted to engage the opposite faces of the laterally disposed flanges of the bars 25 and 27, there being a pair of such wheels mounted ateach side of the carriage, each pair engaging one .of the upright guide bars. The bars are laterally braced by suitable cross members 34 at vertically spaced points and by a top cross member 35 adjacent the top of the tower. The tower also comprises members bracing the tower against movement longitudinally of the vehicle including members 36, 37 and 38 suitably attached to the body of the machine and at spaced vertical points to the upright bars 26 and 21.

The carriage 30 comprises side plates 40 upon which the guide wheels 3 and 32 are mounted and a substantially horizontal flange 4| extending between the plates 40 at a point near the top edges thereof. The lower extremities of the plates 40 extend forwardly and carry pintles 42 upon which a material-handling device, such as a,scoop 43, is pivotally attached to the carriage. The material-handling device is mounted in an off-center relationship so that the center of the gravity thereof is forwardly of the pivotal mounting provided bypintles 42 so that the force of gravity may cause the material-handling device to tip forward to an inclined scooping position as indicated in skeleton outline in Fig. 3, or dumping position as shown in dash lines in Fig. l.

A pulley 45 is mounted upon suitable journals (not shown) attached to the cross plate 4!, the pulley being rotatable about an axis transversely of the longitudinal center line of the machine and being suitably protected by a guard 45 extending above the plate 4|. Beneath the pulley 45 there is a second pulley 48 mounted upon a horizontal transverse axle at a point slightly to the rear of the axle of pulley 45, and a third pulley 49 is mounted upon a transverse axle extending between plates 50 and 5| depending from the cross member'35 near the top of the tower, the pulleys 45, 48 and 49 lying substantially in the plane of the longitudinal axis of the machine. A main cable has one end attached to a suitable clamp 56 mounted upon the rear wall of the material-handling device 43 at a point spaced from, and preferably above, the pivotal mounting thereof. The cable 55 passes through an opening in the rear wall of the scoop, about the pulley 45, then down and around the pulley 48, up and around the pulley 49, and down to a drum device mounted upon an axle 6| extending transversely of the machine, the axle being journaled in the longitudinal side plates thereof and a central, longitudinally extending plate 52. V

The drum 6B is keyed to the shaft SI which is adapted to be rotated by a sprocket gear 63 and a sprocket chain 64 passing about a sprocket gear 65 mounted upon a transverse axle 66 suit-' ably mounted within the body of the machine.

The axle 66 is connected through a worm and gear device 5'! to a shaft 68 extending longitudinally of the machine. The shaft 58 at its rear end carries one-half of a universal joint 69, the other half of which is carried by a sub:

stantially longitudinally aligned shaft 18 journaled in a journal H suitably supported in the machine. The forward end of shaft it is fixed to a grooved collar 12 engaged by the pivot pins of a gimbal 13 which is pivotally attachedto one arm 15 of a toggle device having a second arm 75 pivotally attached to a boss on the journal "H. i A

toggle control lever 11 is pivotally attached to the pivotally joined ends of levers l5 and I6, ex-' tends to rock the bell crank 18 to the position shown in Fig. 6 so as to cause the center joint of the toggle device to pass over-center in a clutch-releasing direction as'illustrated in full line in Fig. 6. The rearward end of shaft 10 carries a cone clutch member 85 adapted to be received in and clutchingly engage a conical cavity in the end surface of a plural-sheaved outline in Fig. 6 causes shifting of the shaft Ill in a rearward direction, such shifting being permitted by a splined connection (not detailed) of shaft 19 with the half of the universal joint pf t'o'n' ifs gar-mm and the lver tnd's tfd stay th re "dfihat marigjafl force i s necessa ry t b i'r'ip'Y h i' of the other positions. The level will other end thereof being passed about the drum device I38 in the opposite direction of winding from that of cable I35. the brake drum 38 are affixed to each other and journaled for loose rotation about the shaft 6!. Therefore, as the carriage 40 mounts the tower the cable l35 will be unwound from the drum device and the cable I40. will be wound thereon, and vice versa. The braking of the drum device by the brake band l2il arrests the carriage at any preselected position of movement vertically. of the tower.

Operation.'l"he operation of the present invention will be described in regard to a machine fitted with a scoop as illustrated. It is to be appreciated that the same operations may b performed with any other type of material-handling device. The operator may move the machine about by the normal use of the gear-shifting device exemplified by the lever l5, and the wheels may be locked by the brake device exemplified by the brake lever I5. Assuming that the carriage is-at its lowermost position with the limiting members I05 and-Hi9 in engagement, the operator may release the brake band I9! by moving the lever 9!! forward, thus causing th scoop 43 to tip forwardly and downwardly under the efiect of gravity. Since the brake band 10! no longer holds the shaft 6| against rotation, the cable 55 will unwind from the drum 6!! and will be extended to the dotted'line position shown in Fig. 3. Thereupon the operator may mov the vehicle forward into piled materials, at the same time shifting the lever 90 rearwardly to engage the cone clutch device. The slack is taken up in the The drum device I38 and cable 55, the cable first raising the scoop 43 to its material-carrying or upright position, and thereafter, as the scoop comes into abutting relation with adjacent portions of the carriage 4|, raising the carriage and scoop along the tower to the preselected position. For such raising movement the brake band I29 is released so that the drum device I38 rolls freely on the shaft 6| and winds the cable 140 thereon whil permitting unwinding of the cable l35. At the proper elevation of the scoop thebrake band l29 may be set to arrest the carriage at its preselected point or the lever 90 shifted to release the clutch and set the brake lfll. Thereafter the operator may, if

desired, move the vehicle to any other selected position for dumping the load. On arriving at such a position the transmission lever 15 is shifted to neutral, the brake 16 set, and dumping of the load achieved by loosening the brake band l0! under control of the lever 90. brake band I29 remains set the carriage cannot move vertically but the scoop 43 will tip to its inclined position to dump the load either on the ground or at some elevated-point, such as a concrete trough, boxcar or building scaffold. Thereafter lever 99 is shifted to clutch-engaging position whereupon the scoop will first be raised to its upright position and then the carriage will be raised to a further point unless prevented from doing so by the trip device including cable HIE which automatically releasesthe clutch and sets the brake band NH. The operator may, if desired, release the brake band I29 and move the lever 90 slightly forward, whereupon the carriage and scoop in the upright position will be lowered to the bottom of the tower due to the weight of the carriage and scoop overcoming the frictional force of the brake band M I Having illustrated and described a preferred embodiment which the invention may assume it Since the is tobe appreciated that various modifications in detail and arrangement thereof may be achieved. All such modifications as come within the true spirit and scope of the appended claims are to be considered a part of our invention.

We claim:

1. A material-handling machine comprising a tower, a carriage guided for movement on said tower, means for raising and lowering said carriage along said tower comprising an engine and cable movable thereby, a material-handling device, such as a scoop, pivotally mounted on said carriage in ofi-center relation so as to be movable to a dumping or scooping position by the force of gravity, guiding means on said carriage about which said cable is passed, means for clamping an end of said cable to a portion of said material handling device at a point spaced from the pivotal mounting thereof whereby slack in said cable when said carriage is arrested permits movement of vsaid material-handling device to scooping or dumping position and tightening of said cable first causes raising of said material-handling device to an upright or material-carrying position and thereafter causes raising of said carriage along said tower, a clutch for connecting said cable to said engine, a brake for arresting said cable, a lever, means connecting said lever to said clutch and to said brake for substantially simultaneously engaging said clutch and disene gaging said brake upon movement of said lever to one position and for disengaging said clutch and engaging said brake upon movement of said lever to a second position, and means'automatically to disengage said clutch and engage said brake as said carriage. arrives at a preselected position on said tower. 2. An automotive vehicle having a tower mounted thereon, a carriage guided for movement along said tower, means connecting the engine of said vehicle to said carriage for raising and lowering it along said tower comprising a cable, a material-handling device pivotally supported on said carriage in off-center relation so as to be movable to an inclined position by the force of gravity, guiding means on said carriage about which said cable is passed, and means clamping an end of said cable to a portion of said material-handling device at a point spaced from the pivotal mountin thereof wherebyslack in said cable permits movement Of said device to. its inclined position'and tightening of said cable first causes elevation of said device to an upright or material-carrying position and thereafter causes raising of said carriage along said tower, said means connecting the engine of said vehicle to said carriage including a clutch and a brake, a manual lever operatively connected to said clutch, and means interconnecting said,

clutch and said brake for opposed functioning whereby when said clutch is engaged said brake is released and vice versa, said interconnecting means including a spring toggle device whereby said clutch is held in engagement.

3. An automotive vehicle having a substantially vertical tower mounted thereon, a carriage guided for vertical movement along said tower, means connecting the engine of said vehicle to said carriage for raising and lowering it along said tower comprising a cable, a material-handling device, such as a scoop, pivotally supported on said carriage in offset relation so as to be movable to a dumping or scooping position by the force of gravity, guiding means on said carriage about which said cable is passed, means clamping an zi ea on 9 end 10f sai cable :to a portion of said materialhandling device atta ,lpoir tispaced from the pivotal m unt ng the eof whereby slack in said cable pers mits movement of said device to scooping or dumping position and tightening of said cable first oauses elevation of said device to an upright or material-carrying position and, assoonas-sa-i device is brought .intdabuttin'greIation with said carriage, raising of said carriage along said tower,

said means connecting the 'engine'of said vehiclemeans and operable automatically to disengage said clutch and engage said brake as said carr-iage approaches the top of said tower.

:4. vA material-handling machine comprising a substantially vertical tower, "a carriage guided 'forvertical movement on said tower, means for raising and lowering said carriage along said tower comprising a cable, a material-handling device-such as a scoop, 'pivotally mounted'onsaid carriage in offset relation so :as to be movable toa dumping or scooping position by the force of gravity, guiding means on said carriage about which said cable is passed, means .for clam-ping an end of said cable to a portion of said materialhandling device at apoint spaced from the pivotal mounting thereof whereby slack in said cable per-v mits movement of said material-handling device to scooping or dumping position and tightening of said cableffi-rst causes raising of said materialhandling device to an upright or material-carrying position and thereafter-causes raising-of said carriage along said tower, a second cable having one end attached to said carriage, #a drum device mounted on said machine and upon which the other end of said second cable is wound, a third cable having one end attached to said carriage and its other end wound 'u-pon said drum device in a direction opposite to the direction of winding of said second cable, whereby elevation oi-said carriage winds one of said second and third cables upon said drum device and unwinds the other from said drum device and "vice 'versa, and brakmg means including a manual lever to hold said drum device against rotation.

5. A material-handling machine comprising a tower, a carriage guided for movement on said tower, means for raising and lowering said carriage along said tower comprising a cable, a material-handling device pivotally mounted on said carriage in offset relation so asto 'b'emovable to an inclined position-by the force of gravity, guiding means on said carriage about which said cable is passed, means for clamping an end of said cable to a portion of said material-handling devicewhere'by slack in said cable permits 'mO /emeht of said material-handling device to its in clined position and tightening of said cable first causes raising of said material-handling device to a material-handling position and thereafter causes raising of said carriage along said tower, other cable means having attachment to said carriage, a drum-device mounted 'on'said machine and upon which said other cable means are wound, other guiding means about which said other cable means passes from said carriage to said drum device, said other cable means including portions wound in opposite directions upon said drum device whereby elevation of said carriage winds one portion upon said drum device and unwinds another-portion from said drumder vice and vice versa, and braking means to hold said drum device'a ainst rotation at any selected, v

position.

6. -An automotive vehicle having a substantially vertical'tower mounted thereon, a carriage guided for vertical movement along said tower, means connecting the'eng-ine of said vehicle to said .car-.- r-iage forraising and lowering it-along said tower comprising a cable, a material-handlingdevice,- such as a $6001 ipivotally supported on said 03,1"!

riage in oiTset relation so as to be movable toga dumping or scooping position by the force of gravity, guiding means on said :ca-rr-iage about; which said cable is passed, means clamping an end of said cable to a portion of said materials:- handling deviceata point spaced from the pivotalmounting thereof whereby-slack in said cableiper-rmits movement of said device to scooping on dumping position and tightening of said cable; first causes elevation-of said device toan uprightormaterial-carrying position and, as soon as said device is brought into abutting relation withsaid carriage,;raising-of said carriage along said tower said means connecting the engine of said vehicle to said carriage including a clutch anda brake, a; manual lever operativel-y-connected to saidclutol i means interconnecting said clutchand said brake; for opposed functioning whereby when saidclutc is engaged said brake is released and vice verso";- said interconnecting means including an overs: center toggle device whereby said clutch is held;

in'engagement; a trip device connecting said carriage to said interconnecting means and operable automatically to disengage said-clutch and-engage saidbrake as said carriage approaches a -selec led position on said tower, a secondcable having one end attached to said carriage, a drum device mounted on said machine and upon which the other end of said second cable is wound, and athird cable havingone end attached to said-care riage and "its other end wound upon said drumdevice in 'a direction opposite to the direotion of winding of said second cable, whereby elevation of said carriage winds said second cable upon said drum device andfunwinds said third cable from said drum device and vice versa, and braking means to hold said drum device against roe.

tation.

Fl. automotive vehicle having a tower, mounted thereon, a carriage guided for 'move fr men-t along said tower, means connecting the engine of said vehicle tosaid carriage for raising and lowering it along said tower comprising a cable, .a material-handling device pivotally SL113? ported :on said carriage vsoft-center relation so as to :be movable to a lowered position by the 1 force of gravity, guiding means on said carriage.

about which said cable is passed, means attache ing an end of said cable to a portion of said material-handling device whereby slack in said cable permits :movement of said device to its his clined position and tightening of said cable first causes elevation of .said device to an uprightposie tion and thereafter causes raising of said carriagealong said tower, said means connecting the en-m gine :of said vehicle .to said carriage including a clutch, a manual ;=lever .operatively connected to:

said clutch, means including a toggle device whereby said clutch is held in engagement or disengagement, a trip device connecting said carriage tosaid toggle device and operable automatically to disengagesaidclutch as said carriage approaches a selected position on said tower,

a second cable having one end attached to said second cable upon saiddrum device and unwinds said third cable from said drum device and vice versa, and braking means including a second manual lever tohold saiddrum device against rotation. I

- 8. In a material-handling machine, a tower, a carriage movable substantially vertically of said towena pulley near the top of said tower, a second pulley mounted on said carriage, an engine associated with said machine, a scoop or the like pivotally mounted on said carriage so as to be movable to' lowered or scooping position by the force of gravity, a cable attached at one end to said scoop, passed about said pulleys, and releasably connected to said engine at its other end, said cable'being operative, therefore, upon being operatively connected to said engine'first to elevatesaid scoop from lowered or scooping position to ail-upright or material carrying position and thereafter-to raise said carriage and said scoop along said tower, a second cable having one end attachedto said carriage, a drum device mounted on said machine and upon which the other end of said second cable is wound, guiding means near the top of'said tower about which said second cable passes from said carriage to said drum device, a third cable having one end attached tosaid carriage and its other end wound upon said drum device, other guiding means near the bottom" of said tower about which said third cable passes from said carriage to said drum device, said second and third cables being wound upon said drum/idevice .in opposite directions whereby elevation "of said carriage winds one upon said drum device and unwinds the other from said drum device and vice versa, and manually operable braking'means to hold said drum device against rotation. f

9. In a material-handling machine, a tower, a carriage movable along said tower, a pulley near the top of said tower, a second pulley mounted on said carriage, an engine associated with .said machine, a material-handling device pivotally mounted on said carriage so as to be movable to i an inclined position by the force of gravity, a

cable attached at one end to said device. passed 7 about said pulleys, and releasably attached to said engine at its other end, said cable being operative, therefore, upon being engaged to said engine first to elevate said device from its inclined position to an upright or material-carrying position and. thereafter to raise said carriage and device along said tower, 'a second cable having one end at tached to said carriage, a drum device mounted on said machine and upon which the other end of said second cable is wound, guiding means near the top of said tower about which said second cable passes from said carriage to said drum device, a third cable having-one end attached to said carriage and its other end wound upon said drum device, other guiding means near the bottom of from said carriage to said drum device, said second and third cables being wound upon said drum device in opposite directions whereby elevation of said carriage winds one upon said drum device and unwinds the other from said drum device and vice versa, and manually operable braking means to hold said drum device against rotation.

10. A material-handling machine comprising-a tower, a carriage guided for. movement on said tower, means for raising and lowering said carriage along said tower comprising a cable, a material-handling device pivotally mounted on said carriage in offset relation so asto be movable to an inclined position by the force of gravity, guiding means on said carriage about which said cable is passed, means for clamping an end of said cable to aportion of said material-handling device whereby slack in said cable permits movement of said material-handling device to its in clined position and tightening of said cable first causes raising of said material-handling device to a material-handling position and thereafter causes raising of said carriage along said tower, other cable means having attachment to said carriage, a drum device mounted on said machine and upon which said other cable means are wound, and other guiding means about which said other cable means passes from said carriage to said drum device, said othercable means including portions wound in opposite directions upon said drum device whereby elevation of said carriage winds one portion upon said drum device and unwinds another portion from said drum device and vice versa. 7

11. In a material-handling machine an engine, a tower, a cable guided on said tower, a releasable, clutch for connecting said cable tosaid engine, a brake for arresting said cable, a manual lever, means interconnecting said lever with said brake and said clutch including portions opera tive to release said brake and engage said clutch when said lever is shifted to a first position, to release said clutch and engage said brake when said lever is shifted to a second position, and to release said brake without afiecting said clutch when said lever-is shifted to a third position from said second position, a materialelevating device connected to said cable and raised thereby along said tower when said lever is in said first position, and automatic means to move said lever from said first position to said second position when said elevating device reaches a preselected elevation.

- EDDIE B. vWAGNER.

HAROLD A. WAGNER.

REFERENCES CITED The following references are of record in the file of this patent:

Lull Jan. 11, 1949

Images