US1780806A - Toy electrically-operated shovel - Google Patents

Description

Nov. 4, 1930. A. P. WILLIAMS TOY ELECTRICALLY OPERATED SHOVEL I Filed Jan. 24, 1929 3 Sheets-Sheet l \W fill/illiama- Nov. 4, 1930. A. P. WILLIAMS TOY ELECTRICALLY OPERATED SHOVEL Filed Jan. 24, 1929 5 Sheets-Sheet 2 a Pl/illiam Nov. 4, 1930. A. A. WILLIAMS 1,180,806

TOY ELECTRICALLY OPERATED SHOVEL Filed Jan. 24, 1929 3 Sheets-Sheet 3 flfillilliams Patented Nov. 4, 1930 I c 1 I I v I UNITED. STATES" PATENT OFFICE .4 .i iJALF BED rEYro v ILLIAMS, ior vmnisolvvintn, marten rov E EorRIo LLv-or nn rnn snovrzn g Application fil edJ anuary 24,1929, Serial No 334,764. j i

This invention relates to metal toys and arm'and yoke for holding the arms in enparticularly to a toy having the form of a; gagement with'the pinion I I miniaturesteamor electric shovel and the gen- Figure 9 is an enlarged sectional view eral object of the invention is to provide a toy through the tubular b it and a portion of the 5 of this character which is' amusing, enterplatform. mountedthereon f taining and educational and 'whichsimulates Figure 's an enlarged. sectional view of very accurately theaction of an electrically the shovel on the same lines .as Figure 6 but operated shovel or of a steam shovel under showing the bottom of the shovelreleased actual working conditions, or in other words, and in a discharging position 2 :f

10 to provide a toy of this kind having a scoop or Referring tothe drawings, 10 designates a dipper and mechanism whereby the load may truckhavingwheels 11, which truckf may be be picked up, elevated, the supporting frame of any suitable construction. 12 designates a rotatedto the right or left under power, and platform having a house or cover 13 support-. the loaddumped either to the right or left ed by the uprights 14. This house may be' of 15 within the range of the machine. any-suitable or approved'construction. The 5 A further object is to provide a toy of this platform 12 .isrotatably mounted'as shown in character having three separate and indee Figure are]: movement around a central boltj pendent electric motors, one motor control- 15 which extendsupward through 'the truck.

ling the forward and rearward movement of The truck as shown in Figure 4 supports a v the scoop, another motor controlling the verfixed table or raceway 16. The platform 12 7 tical movement of'the scoop, and third motor 1s provided witha raceway l7 and between controlling the revolution of the boom and these raceways aredisposed anti-friction balls house upon the truck. 1 v 18. supported in a freely rotatablecarrier. 19

'Other objects will. appear in the course'of in an obvious manner; The bolt 15 at its upthe following description" per end passes through .the platform 12 and ":5

My invention is illustrated in the accomis 'held in place by the nuts 20 and'at its lower panying drawings, wherein end passes through a horizontal plate 21 and Figure 1 is a side elevation of a toy electric is provided with nuts 22. vThis-bolt is tubular shovel constructed in accordance with my and at its upper end carries the collectorrings 3o i ti n; or commutator rings 23 and 24 as shown in Figure 2 is a fragmentaryrear elevation of Figure 9. The conductor 25 which leads from the upper portion of the house showing'the a source of electricityexte'n'ds' upward electric switches; i through thebolt 15 and atlits upper end, the

Figure 3 is a top plan view of the rotatable wires ofthe conductor are bared, one of these platform; y I wires extendingrto the collector ring 23 and s5 Figure'4 is asectional view through tl1e'ro the other to the collector ring 24. 1 By this tatable platform taken'across the center of means current is supplied tothe, several rotation thereof; V motors as will be later stated. V

Figure 5' is a fragmentary topplan view of v The table orracewayl 16 is formed by a the scoop or dipper supporting arms and the fixed gear wheel,the teeth of which engage actuating mechanism therefor; I a pinion 26 Vmounted upon the lower end of Figure" 6' is a fragmentary sectionthrough theshaft extending upward through atubu- Y the scoop supporting arms and through the, lar post or support 2? see Figure 1,thisshaft scoop;

carrying at its'upper end the gear wheel 28. 7

Figure 7 is an enlarged elevation partly in This gear wheel 28 is-engaged by a wormsection of the boom, the scoop supporting 29 mounted upon ahor izontal shaft 30suparms and the actuating mechanism therefor; ported in bearings, this; shaft in turn carry- Figure 8 is 'a sectional view through the ing a gear wheel31 engaged by the pinion 32 shaft supporting the pinion for actuating mounted upon the shaft of an electric motor 50 said arms and showing an elevation of the 33. :Energizing'this motor the platform 12 36.- Mounted upon'the boom intermediate its may be rotated to any desiredextent either direction, the motor being reversible.

' Mounted upon the'platform 12 and extending upward and, outward therefrom'is a boom 34 carrying, at its upper end, the grooved wheel or boom is supportedby means of the brace rods 4, length is ashaft 87, carrying upon it the worm wheel 38. This shaft atits outer end is supported in bearings "39 and the extreme outer endofthe shaft supports the cyolres 40 having I upwardly diverging arms'carrying the rollers 41. The shaftc37 between;the; arn1s ofythe yokes carries upon it the pinions 42. Pass-f ing over;these1-pinions are the; racks 43 which constitute the supportingarms for'the'shovel I or $001044 e e rms 43. have rackieeth ported in a bearing47 in turn, supportedupo non their under faces engaging with the pin-i ions 42. As theshaft'37'is rotated in onediaj rection orathe other the racks43 areiforced outwardior retracted. V 7' For the purpose of rotating. the gear wheel 38 I providethe'worm 45 carried by theshaft- 46 which shaft extends:downward'approximately' parallel'to the boom 34and-issupthe-boom; 1 1

The; shaft146 at its lower -endis connected with the shaft of an velectricni'otor 48 capable of operating in either directioni'and it. will be seen that .as' this motor. :is V operated the shaft:

3-?aiwill be turnedin .one or theother direction and that thus the arms 43 which support the 8 00013544 will be eitherproj ected or: retracted. :.:The scoop 44asshown best inFigure 10, is rigidly connected to the extremities of'the arms 43. "The-scoop is open at its upperand lower ends and pivoted-to the'side walls of the 4O see Figure 5. 3 A spring 53 engages the latch 51': and urges itupward tofa position where the extremity of ,thelatch will "engage with a notch 54 formed on the arms 49.1; Thi'sspring at its upper end supported by means of a transverse plate. 5 5 and pivotally'mounted upon this plate is a lever 56 which is angular radially from the shaft 52 v I v c, v a r the outer end of this lever is shifted rearward,'the pin 58 will'be rocked forward v form andoneend of this leverlis slotted at 57 andisengaged with a pin 58 projecting and the latch 51 Withdrawn its engage- 5 'inentiwith the notch 54,

permitting the botof the scoop todrop to the position shown in Figure 10., When the-scoop, has been turned to an operating position, the bottom 50: will close by gravity and the latch 51 will spr1ng .1nto place in, engagement with. the

pulley 85. .The outer end of this the scoop; c 7V The electric current is" conducted toY-the notch 54, thus'once again holding thescoop v with the bottom closed.

Attached to the rearwall of the scoop is pulley-59 and, extending through this pulley is a cable 60, one end of'which is operatively connected to the boom 34 as for instance at the pointof connectionwith the stays 36, this cable afterit passes through the'p'ulleyiz59extending-over the grooved wheel 35 and 64-,

ten-ding downwardtoa drum 61 mounted in fsuitable' bearings upon the plat form 12. This drum at, one end is, provided with the gear wheel 62 meshing with a pinion 63 on a shaft 64 which carries a gear wheel 65in turn mesh 7 ing with a gear wheel'66 on the shaft '67of an electric motorc68 Thus byc-actuating'gthis motor. in one'or the other directions, the'rcable will be wound inor paidout to raise or lower,

several motors 33, 48 and'68'by bi ushes69 to the several motors. sofas to rotate-the motors in: either direction by' 'means of, theconventional switches '71., PI have: not I ill'us engagingIthe rings Q3iand 24',iconducting wires leading fromthese brushes; to the. switch box 70 and thecurrent being directed;

trated any particular wiring system whereby a this may be achievedbut this will bebbviou's to any electrician; iThethree'switchejs 7'liare independently operable to'throw the current on or off of each one'of the motors independ, V

ently of the. other motorsaand to'causezthe rotation of '1 the motors fin: either direction.

Thus by operating one of. the switches, 'itywill be obviousthat the platform withthe boom 34'maybe swung'around in ahorizontal plane. By operating the motor 68, the scoop may be raised .or; lowered and rbyflop'erating the motor 48 in one orthe otherrdirectiomthe scoop may becrowded outward or retractled.

The rollers-4 l'hold the arms-43 engaged with the "pinions' 42 in any positionofthe' arms 43- whether these arms "are in" a' hori-' zontal position, slanted upward and rear ward'or slanteddownward and rearward? It its will be understood, of course, that the yokes c 46 are so mounted upon the shaft-37 that they may-swing around the shafts upon' a center to permit themovement ofthe arms 43in a 'plu-c ralityiof inclined. positions;- The arm 56 is intended-to be connectedto anoperating cord extending backward to a position adjacent the switches so that a chil-doperating the device 6 F 7 may: dump the scoop vlat any desired-point; 1: Preferably the gear wheels 28: andf65fwill be connectedto theseshafts Vbymeans :of a

pins are used to fasten shafts on which they are fitted, thusprovid' ingmeans to relieve strain when moving parts become locked for pins shearing underthis' g All of'the part s'may be madeiof thinmetal strain; u

except the wheels, and: the boom p 34 isfof any reason, these wooden drift pinv 7 2 and such a wooden drift V the spur gears tozt-he 7 pressed metal, channel-shaped or rectangular in cross section. The platform and the cabin may be made of light metal formed up and secured together in any suitable manner. It will be seen that there are no clutches in this construction which require that the several instrumentalities shall be operated from one motor, but that the several instrumentalities necessary to operate the scoop and shift it outward or inward, raise or lower it or carry it or swing it in a horizontal plane are each operated by a separate motor. This renders the device much more simple than where a single motor is used and makes the control of the several motors of such simple character that the device is readily understood by any child.

This device may be readily operated by any child. Thus all motors may be operated separately or in unison and either forward or backward as desired by the operator. The electric current may be obtained from a lighting system.

While I have illustrated wheels 11 upon the motor truck, it will be understood that an endless track might be used and that the wheels and track might be power driven by means of an electric motor on the truck or platform.

In a toy power shovel the combination of a boom, a scoop, a pair of arms mounted upon the scoop and extending transversely'of the boom, means on the boom for shifting the arms outward or inward, means on the boom for raising or lowering the scoop, angular arms pivoted upon the scoop and carrying a scoop bottom, the angular arms having notches, a latch pivoted upon the first named arms and adapted to engage with the notches in the bottom supporting arms, a spring mounted on the arm and engaging said latch.

for urging the latch into latching position, a shaft upon which the latch is mounted and having a radial arm, and a lever having a slot in which said radial arm is disposed, the lever being shiftable to release the latch.

In testimony whereof I hereunto afiix my signature.

ALFRED PEYTON WILLIAMS.

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