USRE11780E - krieger - Google Patents

Description

No. man. Reissued 00L 3|, 1899.

L. KRIEGER.

ELECTBICALLY PBOPELLED VEHICLE.

pphcation filed June 20, 1B

- +MIWIIIIWIHIITIIWHIIQIMIHIIIII q M No. man. Reissued Oct. 3|, |a99,

L. KRIEGER.

ELECTRICAL-LY PnoPELLEn vsmcuz.

(Application filed J'u'ne 20, 1899.)

7 Shoots-Shoot 3 I m. ||,780. Reissued Oct. 3|, I899. L. KRIEGER.

ELECTRICALLY PBOPELLED VEHICLE.

[Application filed June 20, 1899.)

Beisshad on. 31, I899.

L. KRIE GER. ELECTRICAL-LY PBDPELLED VEHICLE.

(Applicmion filed. June 20, 1899.) i

7 Shpots$haet 5 mun nu No. l|,780. Reissued Oct. 3|, I899. L. KRIEGEB.

ELECTBIGALLY PRUPELLED VEHICLE.

(Application medium: 20, 1999.;

7 Sheets- Shaat 7,

llllllllllllllllllllllll I III llllllllllllflllllllh.

"Ml llllll Illlllllll II II of the vehicle will be driven, while at the '5.

' onghl' understood I shall first set forth the suitable type. 1

".2 is an'elevation showing the application of my apparatus to any type of vehicle.

is a planet the motor fore carriage. Figs. 4

. 7 is ajplan. Fig. 8 illustrates the application of my invention -to a casewhere the wheels a detail view ence indicate the same parts.

of amodification'in the'application of myapand Fig. 9 is a corresponding plan.

UNITED [STATES PATENT OFFICE.

LOUIS KR'I'EGER, or PARIS, FRANCE.

SPECIFICATION forming part of Reissued Lett Original no. 607,991,

To a, wliom it may concern.-

Be it known that I, LOUIS KRIEGER, of the city of Paris, France, haveinvented Improvements in Electrically-.Selt'-Propelling Vehicles, (for which I have obtained Letters Patent in Germany for fifteen years, dated February 6,1895, No. 87,401, and in France for fifteen ears, dated January 22, 1895, No. 244,542, of which the following .is a full, clear, and exact description.

This invention relates to electrical apparatus for driving vehicles, the arrangement be.- ing such thatthe wheels of the fore carriage same time allowing of the steering of the said vehicle by means of the fore carriage.

In order to enable my invention to botherprinc ple of the same and then illustrate its application to a vehicle, which may be of any To facilitate comprehension, I have illustrated. the arrangement of my invention in the following drawings, in .Which."

Figure 1' is a. diagram of the general arrangement of m y electrical apparatus. Fig.

Fig. 3

and 5 are respectively an elevation and a plan paratus. Fig. 6 shows a modification. Fig.

of the fore carriage are mounted on pivots, Figs.10- and 11 are detail views illustrating the manner of mounting the motors, and Fig. 12 is of the construction shown in Fig. 7.

' I'n'thedrawingsthe same letters o'firet'er- According to my invention the wheels oi the fore carriage of a vehicle are converted into driving-wheels by driving each of them separately,'either by an electric motor or by one of the armatures of a double machine.

The number of the wheels of. the fore carrings may vary. lVhen there are more than two, only one wheel on each side of the fore carriage can be driven. With this arrange- ELECTRlCALLY-PlROPELLED VEHICLE.

ers Patent No. 11,780, dated October 31, 1899.

dated July 26, 1898.' Appliontionfor reissue filed June 20, 1889. 'fBerisl No. 721,270.

ment the two following conditions must be complied with: First, movement in astraight line' must be retained, and, second, the fore carriage must be adapted to be steered.

'The general'arrangement of my apparatus com prises,essentially,as shown in the diagram Fig. 1, two electric motors A A, one on the right and one on the lel't, B B being the armatures of the same, and C C their field- 6o magnets.

D represents the storage battery; E, the coupler; F, a switch; and G the steering ap-- paratus. 4

The current passes from the battery D, through the coupler E, through the field-magnets G' C, mounted in series one after the other, and then through the switch ,F,-and divides at the steering apparatus G tooperate the armatures B B, mounted in parallel.

The two field-magnets and steering apparatus are connected in series, while thesteer- 'ing apparatusis connected with the armatures in parallel. The magnetic fiu'ir is there fore the samefor the two machines, and whatever theirload may be they will always rotate at the same speed -s0long as one of them is notditferentl y regulated. The vehicle will then travel in a straight line.

'If the two windings of the field-magnets are identical, one may connect the latter together in parallel and even be cnabled,,by means of a coupler, to connect them together eitherin series or-in parallel. l The field-magnet winding ofeach motor should be one-half weaker than that corresponding to the current passing through the armature-that is to say, if twenty-five amperes pass through the armature the fieldlnagu'et winding must be made for fifty amperes. "Actually the total current passes into each field-magnetviz., fifty ainperes-sb as to give twenty-five for each armature.

In a double machine there is only one fieldma'gnet' for the two armatqre's' The normal progression in a straight line shouldbe capable of being modified at will. This result is efiected by means of the switch F, capable of producing in addition braking by electric means andchangeof the direction we of motion. f The change .of the direction of movement is e ected by electrically braking one or other of t e two clectricmntors by short-circuiting the corresponding armature by means'jof the apparatus; G. This latter is provided for that 5 purpose with four contacts (1' d d (If, ar-

ranged in two annular apd concentrierows The contact 11' extends over slightlymure thanhalf the circumference, and the contactdhas a range slightly smaller thanhalf the circumferen'ce. These two contacts are arranged on one and the samecircumference. The two contacts (I (7', which are on a circumference inside the foregoing one, have the same extent. Ovcr these contacts there are adapted '15 -to move two rubbing pieces e e, mounted on Y -the same diameter. These two rubbing pieces are electrically insulated and are designed to connect the two annular rows of contacts. 'Each of the same is capable of movingover one-quarter of a circumference to the right and to the left of the diameter, whichis at right angles to the line of separation of the eohtacts d (l'.

NVhen the. rubbing pieces 6' e. occupy the :5 position shown in full lines, the two endsof the contact 11' are conuc'ctedtothe contacts 11 d and the current passes intp the two armatures. The vehicle then travels in a straight line. Then they occupy the position shown by dotted lines the current passes into the armature B, but the armature B is then short-'circuited and the fore carriage turnsto the right hand. \Vhen,- on

the contrary, they are moved into the position shown by dotted lines, c, the circuit passes into B, while B is short-circuited and the fore carriage turns to the left hand.

The steering apparatus has its center at the point of rotation of the fore. carriage in cases where the fore carriage is provided with a swivel-pin or king-bolt or' a pivot in a straight line with the centersof rotation of the wheels; If an axle with sleevesis employed, this apparatus, being fixed to the 5 fore carriage or connected to the axley-jour- 1 nals, turns through the same angle as that through which the wheels turn. Therefore in either case if thehandle be turned through a certain angle then as it is connected to the rear carriage by the arm of the driver as soon as the fore carriage has turned through that angle the rubbing pieces?! 6 will be situated again in their position a e'.for motion in a straight line. The fore carriage can therefore never be at a greater angle with'the rear carriagc than the angle which the driver imparts to the handle which serves to control the steeringgear. pensates when traveling in a straight line for 6o any accidental deviationsof the fore carriage.

Figs. 2 and 3 illustrate the application of these several devices to any type of carriage.

Upon the shaft of each electric motor there is'keycd a pinion f, gearing with a toothed wheel g, carried bythe corresponding driving-wheel r of the fore carriage.

This arrangement. thus coln- Thetwo electric motors are arranged at each endof the axle-of the fore carriage, either one on each side or both in front or both at the rear of the said axle, or either in front or behind the same in the case of a double motor.

- Thej ecu-mnlators are inclnsed in boxes It, carried by the framing I. \\-ith the object of obviating the action of the vibration due to the inequalities of the ground the boxes h may be placed-on springs. I I

In the steering-gear- G-the rubbing-pieces e'e' aremounted on an operating-shaft 1', provided at its upper end with a handlej.

The coupler E enables fdiiferent speeds to be-obtained bygrouping either-in series or in quantity equal portions of the battery.

The coupler- E may be fixed, for example, to the apron or the splashb'oard of the carriage. y

The switch F is placed inside the box se'at.

The current coming from the coupler E passes first into the field-magnet C, as indi- 9 cated by arrows, then into the field-magnet C and into F, then to the contact (1 of the steering-gear, where it divides to go to the two armatures B B and returns thence to the contacts (1 d of the steering-gean' If the carriage is traveling in a straight line, the current passes through the bridge-pieces e e to the contact cl and thence it cornesfiagain to the switch B and returns to the couplerE. It it "s desired to brake the vehicle, the cur: roe rent see from the accumulator D, then excites the field magnets, and the current. pr oduced in the armatures by the momentum of the vehicle is absorbed' by the resistances arranged on F until total short-circuiting is'obr05 tained. v The change of direction of the'armatures produces rearward travel. f

The driver of the vehicle holds the lever Z l in one hand in sucha manner as to be'mastenat all times of the speed of travel, and he no holds the handle j in the other hand, so as to .be able to steer the vehicle. He may in ad- 'dition have athis disposal a stopping device of any type-such, for instance, as an ordinary brake operated by a hand-wheelt,,moutit- 1 13 ed at the side of the box-seat.

Figs. 4 and 5'i11ustrate a' modification oil-my apparatus which allows the drivers scattebe arranged at the back of the vehicle. In

this modification the twoelectric motors are no situated on the same side of the all of the forc=carriage. The shaft i, upon ich'the two rubbing pieces e e of the steering appsrat'us G are 'mounted, rries a pinion 11', ac-.

tuated by a pinion 1? through the medium-o! .a cbaini". 'lhe pinion 1? is operated by the hand-Wheel j by means of connecting-shafts j fj, connected together by means of bevelpinions-and a universal coupling,- as shown in the drawings. The other partsare similar 0 to those hereinbefore described, 'and the apparatus is controlled in the samemannerg,

In the case where the axle is rigid and is "provided witha turning-pin the steering ap- .said'turning-pin, and thus all action of the rear carriage upon the steering of the fore carriageisnch as might occur it the vehicle were to run away) can be neutralized, Figs.

- 6 and 7. With this object thepinionsf, which long pioion'f gear into. the toothed wheels 9, driven by the motor -g"ears g, rigidly fixed to the front wheels, are keyed on independent shafts f, carrying at their other ends two small pinions f" of equal size. The latter gear into a orinto two pinions keyed on the same axle. The journals of this pinion or of this axle are carried by 'a'box j, which is provided externally with an endless screw and revolves idly on the axlesf.

- cbntact-pieces of the steering apparatus. At

a turn of the fore carriage, therefore, itwill be seen that as the wheels turn at a different rate of speed the gears g and f will also retate ata different rate of speed, and by means of the differential wheel frame, made up of the pinions ff and f, a rotary movement isimparted to the'boxf, the amountof movemeut varying with the sharpness of the turn. Boxf engaging with the cog-wheel G of the direction-switch, this will be moved also. This movement continues until the brushes resume their original position on the contactpieces of the switch G in straight direction, when the two wheels resumeeven speed The switch isthus always displaced in an angle equal to theangle at which the brushes have been displaced to make the curve. be noted, further, thatthedriver has'not to move the handle back again in order to reso me the straightdirection, because the rear carriage has noaetion upon the direction of movement. The d rivermay therefore be situ ated on the fore carriage and move with the latter or he may be placed on the vehicle and operate the rubbing contacts in the following manner: The spindle 2', carrying the rubbing contacts, is fixed at some suitable pointof the fore carriage, and it moves with the latter. It is provided at its upper part with two bevelpinions that are driven by a horizontabshaft' pending in a hand fly-wheelj, situated in' a vertiealplanc.

The whole is held in place by means of a tube that incases the spindle iand is fixed to the fore carriage. In order to turn, the driver rotates the fly-wheel j in one or the other sense, the fore carriage turns,

and the amount of its turning, is indicated by the position of the horizontal shaft carrying the fly-wheel j. It is sufiicient for him to cease to turn the said fly-wheel in order to proceed in the direction indicated. Ins-steering instead of short-eireniting the armature of one of the machines the excitation of the corresponding field-magnet m'aybe increased either by increasing the number; of the convolutions of its winding or by applying an auxiliary excitation to its circuit. The arraugementof the steering apparatus is not The end-- less screw gears into the plate G, carrying the It is to only to a fore carriage having a-tnrning-pin,

but also in those cases \vhere the driving wheels are mounted on pivots. In this last application I preferably employ the following arrangement, Figs. Sand 9. The. axlet-ree II of the fore carriage carries at each of its ends a sleeve J, in] which rotates a pivot K, that forms one with the axle-neck of the correspondingdriving-wheel. Upon these axle-necks are fixed the electric motors A A, each of which is'arranged to drive the corresponding wheel by means of a single trainof gearing having a ratio of at least one to ten. The motors thus swivel with the wheels. The entire arrangement constituted by the motor, the gearing, and the wheel is independent of the remainder of the vehicle and may be very easily removed when it is necessary to replace or repair any part.

The steering is efiected by means of a sector L, having internal teeth,which is fixed on one of the axle-necks and is actuated bya pinion M, whose axle rotates in a bearing N, fixed to the axletree and connected to the steering fiy-wheelby means of a Cardan or other joint allowing of the turning of the ve-' hicle. The other axle-neck is coupled to the first axle-neck by means of a rod 05 In the case of a steering arrangement of this kind,

. the power beingsmall, the two armatures of the dynamos maybe mounted in series. v

The axletree H of the fore carriageis connected to the bodyof the vehicle by means of. a transverse spring P, fixed at its centerby means of a shoe Q'in such a manueras to becapableof becoming inclined to'the right or,

to the left'in a plane at right angles-to the vehicle by rocking about a longitudinal axle R, fixed to the body. Thisarrangement allows the front nxletree to assume inclinations to suit the inequalities of the ground; This .axletree' iskept in the direction of the travel by means of two horn-plates S, fixed to the body. 7 v

Y The transverse spring rests upon theaxletree through the medium of two connectingrods T, capable of rocking about their axl'es U and connected together at their ends by means of two diagoual rods V. This arrange:

ment has. for its object/t0 prevent lateral movement of the front axletree relative to the vehicle. The two connecting-rods T can, indeed, become inclined together andin opposite directionsto the same extent when. the spring 1 is deflected; but in consequence of their diagonal connection they cannot become-inclined in the same direction, and consequently the center of the axletree always remains opposite to the center of the spring.- I The switch F serves as stated, to brakethe momentum of the vehicle, and the change of direction of the armatureaccomplished by the switch F servesto reverse the movement,

of the vehicle. This'switch, which. serves to brake the vehicle and also to reverse the movement thereof, may manifestly, by proper manipulation of the operator, serve to control or regulate the speed of travel of the vehicle. i The vehicle may be steered by means of suitable mechanical appliances, a form of such being illustrated in Figs 8 and 99$ the to said wheels, substantially as described.

2. In an electrically-propellcd vehicle, the combination with steering-wheels, of independent motors, the armatures of which are independen tlyconnected with the said wheels, substantially as described.

8. In an electrically-propelled vehicle, the combination with steering-wheels, of independent armatures independently connected withsaid wheels, and means for cutting out one of said armntures, substantially as-described. I t

'. 4. In an electrically-propelled vehicle, the

combinationwith steering;wheels, of inde-- pendentmotors, the armatures of which are independently connected with said wheels," electrical, circuits {fir-solid. Ignores;- and means-lor maintaining both sai armatures in circuit and also fo'rshort-cirenit-ing one of said armatures, substantially as described.

5. In an electrically-propelled vehicle, the combination with an axle carrying steeringwheels,.of a plurality of independent electric motors carried by said axle, and independentlyconnectedwith said stecriug-whcels, substantially as described.

6. In an electricallyprop elled vehicle, the combination with steering-wheels, of a body, a rigid axle, two driving-wheels loosely mountedon the, axle, two electric motors mounted on the axle ,soaato'aline at all ti mes with the axle eachmotor having a short shaft, one shaft gearing with one driving-wheel, and the other shaft gearing with the other drivingwheel, so that the two driving-wheels are tors, the armatures of which 'carry gearwheels'in mesh with said toothed wheels, substantially as described. t

, 8. In an elcetrically-propclled vehicle, the combination with the stecring-wlieels,'of an independent. armature connected "to each wheel, a fixed magnet in conjunction with each armature. a steering ap ratus having independent electric'con nections to each atmature, and a source of electrical energy, the field-magnet windings and the steering apparatus being connected in series with the source of electrical energy, substantially as described.

9. In an electrically-propelled vehicle, the

combination with the steerlng-wheels'of a 1110 chanically-independent motor for'operating each wheel, a source of electrical energy, a steering apparatus comprising the plates (1' (1 and-d'ld electrical connections in parallel from the plate (7. tothe armatures of both motors, electrical connect-ions for connecting the field-magnets and thesteeringapparatns '80 in series with the-source of electrical energy,

and the i'uovable contacts operating in conjunction with the plates to shortcircu it either armature fol-steering the vehicle, substantially as described.

1U, luau electrically-propelled'vehicle, the combination with thesteeringrwheels, of a mechanically-indcpendentmotorconnected with each wheel, a movable plate G carrying suitable contact-pl'ates, manually-operated contaets cooperating with said plate for varying the speed of either motor for steering thavchicle, and connections from each steering wheel to said movable plate whereby the increase of speed of one wheel will operate to tn rnsaid-movable plate,:su bstantial ly a! d s 5] scribed.

11. In an electrically-propelled vehicle, the

tacts'eooperating with said contact-plates to vary'tho speed of either motor to steer the vehicle, and means whereby such increased speed will turn the plate G comprising a hollow worm geared to said plate G, an idlergear within said hollow worm, a pair of independent gears engaging said idler, and o'perating connections from each of said gears to one of the steering-wheels, substantially as described. i

12. In an electrically-propelled vehicle, the combination with steering-wheels pivotally journalcd upon opposite ends of a stationary axle, an electric motor connected to each wheel, and means for varying the speed of either motor to steer the vehicle, substantially as described. I

' In testimony whereof I have hereunto set my hand this 29th day of-May, 1809.

LOUIS KRI'EGER. Witnesses:

ALFRED DARMAN(.'OURT, VALEXANDRE WEISS.

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