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Publication numberUS736459 A
Publication typeGrant
Publication dateAug 18, 1903
Filing dateDec 23, 1901
Priority dateDec 23, 1901
Publication numberUS 736459 A, US 736459A, US-A-736459, US736459 A, US736459A
InventorsPaul Synnestvedt
Original AssigneePaul Synnestvedt
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Vehicle-driving mechanism.
US 736459 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)

@w @MM No. 736,459.. PATENTED AUGt I8, 1903.



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UNITED STATES Patented August 18, 1903.



SPECIFICATION forming part of Letters Patent No. 736,459, dated August 18,v 1903.

i Application tiled December 25,1901. Serial No. 86,948. (No model.)

To all whom, it may concern:

Be it known that I, PAUL SYNNESTVEDT, a citizen of the United States, and a resident of Glenview, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Vehicle-Driving Mechanism, (Case No. 5,) of which the following, taken in connectionA with the accompanying drawings, is a specificationl This improvement has reference to the pro-l vision of novel means for transmitting power from a driving- Shaft to a pair of driving-` examination of the accompanying drawings,

.' in which- Figure 1 shows inplan view a vehicle having my improved driving mechanism applied thereto. Fig. 2 is a vertical .section thereof,

and Fig. 3 is a sectional view showing the ari rang-ement of the parts of the driving-shaft.

Referring now more particularly to Fig. 1, it will be seen that I provide -a' non-rotatable axle 4 for carrying a couple of rotatable driving-wheels 5, adapted to be .driven by a flexible driving connection 6 (preferably 'a chain) from sprockets 7, each of which is carried upon the outer end of a sleeve 8,-.('see Fig. 3,) the sleevebeing driven by beveled gears of a differential, (marked 8 and 8b, respectively,) which receive motion through the central member of the differential 9, which is keyed to the central rod 10, which passes through the sleeves 8 andat each end' has fastened to it by keys or other suitable devices a crankdisk 11, with the crank-pins 12 of which the pitmen 13 of the enginesengage. The rod 10 is supported next the crank-disk at each end by bearings 14, and within the bearings there are attached to the rod the eccentrics 15, which, together with 'the link-motion devices 16, form the usual controlling and re'- versing mechanism for a steam-engine gear.

The links are provided with connections to a rocker-arm 17, carried on a rocker-shaft 18, which is operated by the hand-lever lfi'in controlling the operation of the motor. The shaft 18 is carried in brackets 20, supported upon a frame 21, which also supports the motor and the bearings of the motor driving-shaft, the said frame 21 being supported pivotally about the axle at points 21` and 2l", as shown, and spring-supported at the other `end from the vehicle-frame`22, to which the forward axle 23 is pivotally connected at 24. The frame 21 is arranged at its forward end also to carry the boiler 25, so that there need be no fiexible connections between the boiler and the enginecylinders, and the boiler is given the benefit of the spring-support at the forward end of the frame 21.

In order t'o aiforda convenient means for vregulating' the tension on thedriving-chaius 6,1 provide slidable connections in the supporting-arms,which are carried at 21a and 21", respectively, which slidable'connections comprise, in combination, besides-,the two slidable parts of the arms the locking-bolts 26 and the will be apparent from an examination of' Fig. 2 of thedrawings.

It will be observed that the arrangement of th'e steam-engine and gears which I employ is substantially that of an ordinary locomotive, the crank-pins being, as usual, set at an angle of ninety degrees relative to each other andv both being carried upon a common shaftnamely, the inner rod 10 of the double driving-shaft. The rod 10 being securely fastened to the .central member of the differential gear, as stated, therefore drives bothsides `of the dierential gear through said central member 9 and by means of the sleeves 8 imparts driving movement tothe pinions 7, at the .same time permitting the compensating action of the differential gear in turning corners, which is so important in this class of mechanism. Upon the outside of the central memberof thedifferential gear 9 I provide a brake-band wheel 28, operated by the brakeband 29 through the rocker-shaft 30 and the rod connection Si and 'foot-lever 32.

In the arrangement which I have herein- Y above described, and shown in the accompanyng drawings, in which I place the cylinders of the motor ata considerable distance apart and project the same outside of the plane of the wl1eels,I have provided the cylinders and moving parts of the motor at the sides of the vehicle with a projecting guardframe and coverings These cai1 bemade adjusting-screws 27, the operation whereof the engine, the rocker-shaft which controls Z. s; i

. driven by one side offithe differential gear, a

` driving-rod within said sleeve for driving (for inspection or repair in a very accessible -nianner on account of the location thereof in thing out of alineinent.

readily removable, thus exposing the motor such a convenient place. The boiler being mounted. as shown not only, as stated, gets the benet of the spring-support of the for.- ward end oi the motor-frame and can be attached by pipes tothe engine without any dexible joints intervening, but can yalso be provided with a steam-gage and water-glass and other' attachments, all 'visible from the driving-seat without the use of mirrors, such as are commonly employed. 1

' y order to secure perfect alinement of the several parts of the driving-shaft, the motor or driving frame 21is constructed with bearings for said drivin g-shaft'glboth for the sleeve portions thereof and the inner rod, there being shown on the drawings two bearings for the sleeve portions at each side of the differential gear (marked, respectively, 8S and-8d) and one for each end of the inner rod, to which i have already referred, as shown by the reierence-numeral 11i. All of these several bearings being formed integral with or fast to the main drivingframe, which also carries tberlink-motion of the engine, and the boiler, l have thus secured a steam driving-gear which is, as it were, self-contained and at the same time mounted so as to drive, by the iiexible connections 6 upon the .drivingwlieels, directly instead oi' through the rear axle and which'is capable of 'movement as a whole when it is desired to adjust or regulate the tension oi' the said viexible driving connections and this without disarranging the relative disposition of any of the several parts oi' the driving mechanism or'throvving any- Having thus described my invention, what i claim as new, and desire to secure by Letters Patent, isl l. A vehicle-driving mechanism compristwofdriving-pinions, separate sleeves for driving said pinions, each of said sleeves central member for said differential gear, a

said central member of the differential gear, and a motor at each end oi' said central rod ior driving the same, substantially as de- '2'. A vehicle-driving mechanism comprising a non-rotatable axle, rotatable drivingwheels mounted upon said axle, driving connections for said wheels, pinions for driving said driving'connections, sleeves ior driving said pinions, a diderential gear, a rod within said sleeves, constructed to transmit movement to said sleeves through said differential stantially as described. p

3. in a driving mechanism for vehicles, the combination with a driving-rod, of sleeves mounted thereon, pinions driven by said sleeves, a differential gear for transmittingrl the movement of said driving-rod to said sleeves, a crank upon each end of said driv-Y in g-rod, and a motorlpiston connected to each of said cranks, ysubstantially as described.

4. A vehicle-driving mechanism comprising a motor-frame., a dxed or non-rotatable axle, a pair of rotatable driving-Wheels, said motor-framebeing pivotally supported upon said non-rotatable axle at one end, and springsupported from the vehicle-traine at the other comprising an inner, rod, and sleeves mounted about said rod, bearings for said sleeves carried by said frame, and bearings for :said inner rod also carried by said trame, the bearings Afor said rod being beyond the ends of the sleeves, and amotor-driving connection for said rod upon the end thereof, substantially as described: Y

7".v in a vehicle-drivin g mechanism the combination oi. a driving-frame, a driving-shaft comprising an inner rod, and sleeves mounted about said rod, bearings for saidl sleeves carried by 'said frame, and bearings for said inner rod also carried by saidframe, the bearings for said rod being beyond the ends of the sleeves, and motor-driving connections for said rod outside said rod-bearings, substantially as described. v

8., A vehicle driving mechanism comprisinga drivin g-shaft, composed of. .an-inner rod andA two sleeves) surrounding said rod, driving connections between said inner rod and said sleeves, and a motor mounted at each end of said inner rod, and constructed to impart driving movement. thereto, substantially as described. f

9. A vehicledriving mechanism comprising a driving-shaft, composed of an inner rod and two sleeves surrounding said rod, drivingconnections between said inner rod vand said sleeves, anda motormounted at eachend of said inner rod, and constructed to impart driving movement thereto, a pair of rotatable driving-wheels, a non-rotatable axle, and a driving connection between each of said wheels and one of saidsleeves, substantially as described. f

10. A vehicle-driving mechanism comprising a vdriiingshaft, composed of an inner rod .and two sleeves surrounding said rod, driving connections-between 'said inner rodA and said sleeves, and a motor mounted at. each and a AIlexible driving connection between each of said wheels and one of said sleeves, and adjusting means for regulating the tension of saidnlexible driving connection, substantially as deseribed.

l1. In vehicle-drivin g mechanism, in combination with a fixed axle and two drivingwheels thereon, a shaft with diierential gear and two pinions having iexible connection with said Wheels, two fluid-pressure motors geared to said shaft outside the pinions, and

a fluid-pressure'- supply vessel, said vessel and all the driving mechanism being fixed on a rigid motor-frame and said frame being pivoted `to said fixed axle and spring-supported at its other end upon the frame of the vehicle.

12. In vehicle-driving mechanism, the com-l bination with a vehicle-frame anda ixed axle having two driving-wheels thereon,of amotorframe pivoted on the axle and springfsupported on the frame of the vehicle at its-'other end, a power-generator on the motor-frame, two motors on the frame geared to a shaft operating a 'd ierential gear, flexible driving connections between said gear and the Wheels of the vehicle, the connections being attached inside the point of attachment of the saidginotors to said shaft, substantially as described;

In testimony whereof I have hereunto set;

my hand in thel presence of two subscribing PAUL SYNNESTVEDT. Witnesses z; f,



Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US6179078 *Apr 10, 2000Jan 30, 2001Gregorio M. BellosoFuel efficient and inexpensive automobile
Cooperative ClassificationB60G11/22