US872648A - Traction-motor. - Google Patents

Description

VPATENTED DEC. 3, 1907. P; L. EMERSON. P TRACTION MOTOR. APPLICATION FILED JAN. 18, 1907.

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PATENTED DEC. 3, 1907. F. L. EMERSON, TRACTION MOTOR. APPLICATION PIYLIBD JAN. 18, 1907.

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" F. L. BMBRSON.

TRACTION MOTOR; APPLICATION FILE!) 1,311,141, 1907.

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having teeth adapted with i rrnn s riifiis l ltANli L. EMERSON. OF MUUN IAIN V IEW, CALIFORNIA.

Specification of Letters Patent.

Eaten'ted es. s, 1907.

Application filml January 1&1907- ?,erial Nu. 352.929.

Slate oi tnlil'ornia, have invented new and useful inmrovenu-nts in Traction-Motors oi which the i'ollowiiw' is a s )eciiication. F

My invention relates to a device which. i have calleil n traction motor" it consists in the combination of mechanism and in details of constriu-tion which will he more lull explained by reference to the accompanying drawings, in which- Figure 1 is a side. elevation of my apparatus. Fig. l is a section taken through X- -X of Fig. l and looking to the front. Fig. 3 is a plan view of my apparatus. Fig. 4 is a top view of front gear wheel and clutch. Fig. 5 is a vertical section of the gearing of one frontwheel. Figs. 6 and 7 are similar views of the rear wheel transmission. Fig. 8 is a diagrammatic View of the steering mechanism.

It is the object oi my inventionto provide an apparatus mounted upon Wheels'carirying its own mot-oighaving connections by which power may be &]3l )li(l to (i We each of the wheels; means by which a forward iirivc may he applied to all of the wheels; means by which the drive mechanism may he reversed without reversing the ,motor, and means by which the reversed motion may he applied to one or more of the wheels, and the,

forward (lrhe of the other Wheels disengaged.

A. is'the rear and B the front portions of the frame. These frame Sections may he made of channel or angle iron of any suitable or The front section is sup ported upon a pair of wheels C, the rear portion of therear section is sumwrteii upon. wheels 1). 'lhese' wheels are all turnahio loosely upon their spindles, as is well shown at 2, in Fig. 2. These spindles QHGGXiQDi'if-Ed and have upturned portions 3 at substantially right angles with ilk? horizontal por-- tion upon which the wheels turn. Surrounding the upturned shafts 3 sleeves i, which are fixed to the framesections to which they appertain, and the drive mochan. ism is applied to and thrinigh the as f, llows: The interior peripheries of the wheels have gear teeth 5, and upon iii-e upper ends of the sle a es, i Id-f9 wheels 5 l teeth 5 of the hearing wheels. Any desired or well known Form of gear teeth may be useil in ihis connection. I have here shown what are known as crown gear, having round- ((l teeth which will engage with the cone spending ieeth oi the hearing wheels.

The connection between the wheels 6 and the siee-ves i is eil'ecteil o means of s. suiialile form of clutch capable of acting in one-direction and releasing to turn freely in the opposite direction. Such a clutch I have shown at '7, Fig. l, in which balls or rollers are contained in pockets in the hub or interior portion of the wheels 6, and the poohets are wide enough at one end to allow the gear in turn freely with relation to the sleeve in one di ection, hut to hind when turned in the other direction so that the sleeve and wheel will. turn together. This heing a well .known form clutch ainl not claimed as novel.

Upon the sleeve and as shown at or (sent beneath the wheel 6 is a beveled pinion S which is cngagei h a correspoinlingpinion upon s horizontal shaft i) which is journaled across the front ortion of the frame B; and when this shaft is rew olve-(i in one direction it will cause the clutches T to engage with the sleeves 4, thus riwolvin e them, and ilnougzh the toothed wheels ii to drive ih lvaring wheels C. for any reason it is tlOSilCtl to reverse the movement of the an; satns will he hereafter described. it will be seen theta when the machine luiclieil, these clutches will he released and allow the hearine; wheels (7 to turn iilie powerheing applieil only ie the i "iieis io cause the machine to travel ham i I Upon the shaft 9 is and this is ens l a similar gearii, which mounted ugion a snail; 12 extending hm izcontel v from einl to einl of, the apparatus. "i is shell. 12 through a sleeve 13 which carried at the junction of he frames A and B and this sleeve being rigidly fixed to one part of ihe frame as A, the other poriion B is so connect d as to be turnahlc about the longisuilinal' is of the shaft 12. This allows the front whee C anal the rear wheels ll of the machine to iiecoinniodato theinseives to ir'regl ulsrities of the suface overwnich they traveling: without any strain upon an portion of the machinery, as wil he zen.

' said shaft in a direction which will propel the" intermediate mechanism and thus drive all a motor 13 which may be ofany desired description; In the present case I have indisim lar to those previously described.

cated a double opposed horizontal engine mounted transversely of the frame A and the crank-shaft '14, of this engine enters a gear case 15 within which are "suitable transmission gears engaging similar gears upon the shaft 9, thus transmitting motionto drive four of the wheels C and D rection. I v

If it is desired to reverse the car, it is ef fected by means of the'usual intermediate in a-forward disliding gear set, whichis operated by a lever.

16, so that the direct driving gear may be disengaged and an intermediate gear thrown into mesh to reverse the motion ofthe shaft The motion of this shaft is transmitted to the rear-wheel shaft 9 by a beveled gear 10* from the driving shaft 12. The power from this shaft is transmitted through the toothed wheels 6 to. the interna gears of the bearing wheels D in the same manner as has been'dcscribed for .the front whee s; but in order to drive these wheels 6 in either direction, I have shown two sets of ball-clutoll ies 4 he upp :r set 7 are so constructed in the ball pockets, that when the shaft isbeing driven so as to a ply motion to all the wheels in aforward irection, these balls will engage with'the sleeves 1 as previously described. Below these, is another set of ball cases as at 7, and these are set in the reverseldirection so that they will engage the parts 'to. be driven when the shaft 12 is turned in the o p'osite direction. In order to allow thisto e done without interfering with the up er clutches 7, these upper clutches must be 'sengaged, and this disengaging is effected by means ofa turnable disk 17, which is'inounted axially with the shift 3, and which has pins 18 projecting downwardly into the line .ofpath of the balls 7, so that by turning this the pins will push the balls intothe Wider portions of their pockets, thus-disengaging them-so that they have no effect in turning the toothed wheels 6 and the clutch.

balls 7 located below and acting in the o posite direction, 'willengage and turn the isks m the op' osite dIIGCtlOIl, thus reversing the motion of one or both of the rear wheels D. It will be found that the reverse movement -can be eflected by the use of only one of the bearing wheels, which may sometimes be found possible. 1

The .disk- 17 has notches formed on its edges as shown at 19, and a springpawl 20 carried upon the toothed-wheel 6 is so disdesbl'lbedi latch will fall into one of the osed that when the disk has been turned to 'sengage the upper clutch, as previously erases other so t at the upper clutch may be in engagement again for the forward motion by 7t means of a tooth 21 projecting so that on the commencement of the forward motion which will'be effected by the propulsion of the forward wheel C, the turning of the disk will move this tooth so as to disen age the spring pawl 20 and allow the toothecTwhel 6 to resume' its normal position with the front driving clutch in engagement. Steering maybe effected in various ways. In Fig. 8 have shown a device'in which a vertically disposed steering post 22, (also shown in Figs. 1 and 3) has a steering wheel 23 upon the upper end. At the bottom is a drum. 24 around which may be coiled oneor two turns of a' rope or cable 25. The front '.end of this cable passes around a similar drum 26 carried upon the front portion .of the frame so that by-turning the hand-wheel, motion is transmitted to turnthis drum 26. Around this drum is coiled another cable 27,

each end of which connects with an arm 28 which projects from the steering knuckles, so-called, of each of the forward wheels C.. Thus by turning the hand-wheel in one direction, the cable 27 will be caused to coil around the drum-26 and will pull .upon one of the crank-arms. or levers 28." 1 g A rigid bar 29 extends between these two crank-arms or levers, and the pull upon the cableulling upon one of the levers, acts through this rigid arm to push the other one, thus turning both of the front wheels so that steering may be effected. As the front and rear framesA and B are turnable with rela- 1 tion to each other, I have -shown an idler pulley 40" mounted upon a ielding spring 41 and the cable 25 passing. eneath this pulley will yield to conform to the tilting of the frames.

This apparatus may be employed for .varione purposes. l/Vhen-employed for orchard, or farming work, as is illustrated in the resent construction, it is sometimes found esirable to turn the front wheels and the hind ently, in which case. Ihave shonm 'a second steeringlwheel 34 mountedupon a steeriri wheel s aft 35 nearthe rear of the mach ne.

wheels in opposite directions so as to make a erases I claim. and desire to secure. by Letters Pat out, is-- i. in a. traction ap aratus, a lraiue,

Wheels turnahle upon a at the front and rear, said wheels having internal. gear teeth around their peripheries, a motor turned upon the frame, and mechanism lwtween the inoto and said Wheels whereby the wheels may be driven imlependeutly. said mechanism comprising gears engaging the teeth of said wheels and mounted on vertical axes. 2. inc traction apparatu the combination of a' mam irame, rear wheels ournaled and independently turnahle thereon, a. frontframc having a pair of wheels journalcal and independently turnahh thereon, a longitudinal. central connection between the front and rear frames whereby the 1 no are turnable independently about a longitudinal axis, a motorcarried upon the frame. and connections between the motor and said wheels for operating the latter, said connections comprising internal gear Keel h around the periph cries of the Wheels and a vQl'tlUlllly-jtill!- naled gear wheel for each wheel engaging the teeth Of'lllt latter.

3. In a traction apparatus, the combination of front and rear frames having bearing Wheels, said wheels having gear teeth around their peripheries, a. sleeve fixed horizontally to one of said frames and having a turnable connection with the other, a motor upon the main frame, a counter-shaft passing through said sleeve, means for driving said shaft from the motor, a transverse shaft journaled on the forward frame and mcanswheroby said shaft is driven from the oountcr-shaft, a

-vertically-journaled shaft at each end of the transverse shaft, havinga gear wheel to engage the teeth of the adptcent hearing wheel, and connections between the ends of said counter-shaft and the vertical shafts;

4. in a traction apparatus, main and sup;

plcn ntal frames connected. and turnahlc about a horizontal centrally located sleeve,

bearing wheels having internal gear teeth around the peripheries, vertically journaled gears engaging the teeth of the wheels, a transversely journaled horizontal shaft, gears whereby motion is transmitted from said shaft to turn the wheels, driving gears, a longitudinally journaled unter-shaft passing through the joint conmwitions of the frames,

.beveled gears whereby motion is transmitted to the transverse shaft, and motor connections to drive the countershaft.

5. In a traction apparatus, a mainframe, a supplemental frame, a hollow sleeve forming a joint connection about which said frames are turnable, hearing wheels journaled upon the front and upon the roar frames respecscribed,

tivcly, said wheels having internal gear teeth near the periphery, vertical shafts and sleeves turnahle thereon, said sleeves oarryinggear wheels which engage the teeth of the hearing wheels, transverse shafts with beveled gear connections to revolve the sleeves and gear wheels, a longitudinal countcrshaft passing through the sleeve connection oftho frames having gears at opposite ends engaging gears upon the transverse wheel driving shafts, a motor located upon the main frame,

and gearing whereby motion is transmitted therefrom to drive the countershaft.

ti. ln'a traction apparatus, main and supplemental frames with independently turnahle bearing wheels journaled thereto, said wheels having internal teeth,vertically turnable sleeves having gear wheels, theteeth of which engagethose of the bearing Wheels, clutch n'iechanisms carried by the gear wheels and ada ted to interlock with the sleeves upon wiich the gear Wheels are mounted to transmit motion to said gears in one direction, transverse shafts and hoveled gears throughwhich motion is transmitted to the vertical sleeves and a longitudinally journaled eountershaf-t with gea-rs con neetin with the front and rear transverse wheel driving shafts, a motor, and connec-..

tions through which power is transmitted to the countersluift, a reversing mechanism and .rwersing clutch devices connecting'with the rear wheels wherehy the apparatus may be caused to run" in the opposite direction and the rorward driving clutches disengaged.

' 7. In an apparatus of the character demain and supplemental ,wheel frames, centrally journaled and turnable with relation to each other, gears and forwardly driven clutch mechanisms whereby motion is transmitted to revolve the Wheels in a forward direction, a second clutch mechanism for each of the rear wheels adapted to drive said wheels in the reverse direction, rilans for disengaging tho forwardly acting clutches and engaging the reversing clutches simultaneously, and reversible propelling mechanism.

8, In an apparatus of the character described, main and supplemental frames having a central longitudinal sleeve about which the frames are turnahle with relation to each other, a driving shaft passing through said sleeves from front to rear, steering knuckles having horizontal bearing and driving ,Wheels journaled thereon, said knuckles having vertical shafts at substantially right angles with the Wheel bearing portion, sleeves turnable upon said shafts, gears carried upon said sleeves and engaging the internal gear teeth of 'lidB hearing wheels, a clutch mechanism whereby the gear Wheels are engaged with the sleeves and propelled by such engagement to drive the hearing Wheels, a trans verse shaft, gears connecting the ends of the I ing wheels loosely turnable thereon,

ing knuckles having vertical shafts carried on -,..the frames with tu'rnable knuckles, a turning mechanism comprising drums, flexible cables passing around the shaft with the sleeves, other gears connecting the propeller shaft with the transverse shaft, and steering mechanism by which the wheels may be turned about the vertical shafts as a center of motion.

9. In an apparatus of the character described, the combination of main and en plemental franies, horizontal shafts having earsteergear carrying sleeves through which motion istransmitted to drive the wheels, lever-arms connected withthe steering knuckles and having a rigid connection between each pair of steering drums and connecting with the steering 1a 'v er, anda' wheel by which said drums are turned, and cables moved to turn the bearing wheels.

10. In an apparatus of the character de-- steering knuckleserases between the front and rear steering knuckles whereby the two may be turned in unison, and a steering wheel and intermediate .connections 11. In an apparatus of the character described, independent front and rear frames having a central longitudinal connection about which they are turnable, frontand rear bearin wheels journaledupon the two frames and aving internal teeth, gear wheels enga i driving sleeves upon which they are carried, oppositely arranged clutches connecting the sleeves of the rear wheels, a means by which said clutches are disengaged during the forward movement of'the machine, means b which theforward driving clutches of the the said teeth, clutch mechanisms by w 'c said gear wheels are engaged with" rear wheels are disengaged and the rear driv-'- t ing clutches engaged, a motorand-cou'ntershaft through which motion is transmitted to drive all the wheels in a forward direction, and reversing gears whereby the reversing movement may be transmitted to thejrear wheels when the forward driving clutches are disengaged.

' In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses. a I

- FRANK L. EMERSON. Witnesses:

E. L. EMERSON, R. P. VAN ORDEN.

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