USRE12369E - Speed-changing and transmission gear - Google Patents

Description

3REISSUED JULY 11,1905.

I. H. PLBUKHARP. SPEED CHANGING AND TRANSMLSSION GEAR.

APPLIOATION FILED MAY in. 1905.

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N0. 12,369'." REISSUED JULY 11, 1905.

I. H. PLEUKHARP. .SPEED CHANGING AND TRANSMISSION GEAR.

APPLI ATION FILED MAY 10.1905

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No. 12,369. REISSUED JULY 11, 1905.

I. H. PLBUKHARR' SPEED CHANGING, AND TRANSMISSION GEAR.

APPLIOATION FILED up! 10. 1965.

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Reissued July 1 1, 1905.

PATENT .OFFICE.

IRVIN'H. PLEUFKHARP,

OF COLUMBUS, on o.

sPEED-cHANe-uae AND TRANSMISSION GEAR.

. srncxmcarrron forming part of Beissued Letters Patent No. 12,369, dated July ii, 190;.

Qi'iginal. No. 787,238, clatedAugust a, 1904. Application for reiaauefiled lay 10.1905. Serial No. 259,838.

resident of Columbus, in the county of Fran klin and State of Ohio, have invented certain new and useful Improvements in Speed-Changing and Transmission Gear; and I'do hereby declare the following to be a fell, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to makeand use thesame." v t The object of this invention is to provide a speed -changing and reversing transmission gear of simple, strong, and economical constructidn and having a direct drive,

The invention 1s embodied in the construc- 'tion hereinafter described and claimed.

In the accompanying drawings, illustrating one embodiment onlyof the invention, Figure 1 is a sectional view through the gearing on a plane passing through the axes of the driv ing and driven shafts or shaft and axle, the shaft and axle not themselves, however, being shown in section. Fig. 2 is a section on the plane a: :r, Fig. 1, looking toward the left.

'Fig. 3 is a side view on a smaller scale, a. portion being broken out to showthe ring-clutchshifting device. Fig. 4 is a diagrammatic fragmentary view showing the driving-disks and ring-clutchtherefor. Fig. 5 isa sectional view of the speed-changingclntch or the clutch of the driving-shaft. Fig. 6 is a diagram illustrating the peculiar construction of the teeth of the clutch of the driving-shaft.

.lrVhere the driven shaft is the axle of a motor-vehicle or automobile, it will preferably be composed of two parts 1 and 1. I These will have their abutting ends provided with a com 1 pensating gear permitting one part tomove,

-faster than the other and consisting in the in stance shown of circular-toothed gears 2 and 2", keyed on the ends of the shafts and facing each other, andone or more pinions 3, meshing with the gears 2 and 2, mounted in a collar 4 bctweeri said gears. The compensating gearing is inclosed or boxed by heads 5 and 5" and a cylinder-housing ring 6 betweensaid heads, the spindles of 'thc pinions 3 being passed through said cylinder and engaging it,

so that if the cylinder be turned theaxles 1 the two rows 8" and 8", respectively.

and 1 will also be turned. Mounted loosely 9 designates the driving-shaft operated by the engine or motor. Arranged beyond the end of this and suitably hung or supported between the disks 7 and 7 are three concentric shafts 10, 11, and 12, having at theirinner ends )inibns 10", ll", and 12, res ectively,

meshing with the two rows of teeth 8 8 and The outer ends of the concentric shafts 10, 11, and

' 12 are flanged to the samediameter, as seen at 10, 11', and 12", and the periphericsof said flanges are toothed. The end of the drivingshaft isfurnished with a slip sleeve or clutch 13 feather-keyed thereon, and said sleeve is furnished at its inner end with a flange inter nally toothed to engage with the teeth of the flanges 10", 11", and 12"; The flanges 10, 11", and .12 are spaced apart sufficiently to permit the teeth proper of the clutch- 13 to pass between them without engaging the teeth of two flanges at the same time. The teeth of the clutch, and also, if desired, the teeth of the flanges, arcpreferably wedge-shaped at each side, as depicted in Fig. 6, to facilitate their entrance between each other. To further facilitate their entrance and theguidance of the teeth in'tomesh with each other, several of them can he provided with steel points, pit3ferably flexible, set in staggered or irregnlar arrangement with respect to each other.

14 designates the reversing-ring clutch. v

This consists of a thick band of metal fitting around the cylinder or housing ring 6 and keyed thereon by keys 14, that prevent concentric movement thereof with respect to the housing 6, but permit lateral movement tliereof thereon. The reversing-clutch is toothed on itsopposite edges, as seen in Fig. 5, and

the adjacent walls of the disks i' and? are coiwespondingly toothed. 'lhe reVersing ripg can of course he slid laterally to engage the.

- run'in oil.

' of the axle l and 1 in one direction-for exf time, and this ring is made with a peripheral groove, into which extends the crank end of a shifting rod 15.- The clutch 13 also is pnovided with an ap 'iropriate shifting device 13. 5 The disks 7 and T are. inclosed in a suitable housing and preferably so that they can i The operation is as follow's: The direction of motion of the driving-shaft 9 and clutch i3 is always the same. If the clutch-ring 14 be engaged by the disk 7, three different speeds ample, the forwarddirection can be obtained by shifting the clutch 13 outward. By shifting the clutch farther outward the clntch Z 13 runs free and transmits no motion to the j axle.-- By shifting the clutches 14; and 13 into, the position seen in Fig.1th'e motion of the axle is reversed, because the disk 7 becomes con:

nected with the differential-gear housing, The forms and proportions of the parts can i be varied withoutf departing from the essence j of the invention. i i. l The disk 7 can of course be providet lwith, three rows of concentric teeth instead of one Having fully described my inventiomwhat I claim as new, and desire to secure by Letters j Patent, is- 1. The combination with a driven shaft, two 1: disks thereon normally loose with respect; thereto, means for locking either of said disks g to the driven shaft, several annular series of i gear-teeth on one disk, pinions meshing therewith, an annular series of gear-teeth on the other disk meshing with one of said pinions, 5 a drive-shaft and means for locking any one 1 of said pinions to turn therewith. a? 2. The combination with a driven sliaft, two disks thereon normally loose with respect thereto, means for locking either of said disks to the driven shaft, several annular series of. gear-teeth on one disk, an annular series of gear-teeth on the other disk opposite to and facing one of the annular series of teethon the other disk, a piniorr ileshing with the fac inc, teeth on both disks, pinions meshing with the other series of teeth on the disk, a drive- 1 shaft and means on the drive shaft constructed to lock any of the pinions 'to'turn thcre- E with. I

In a power-transmission mechanism, the l combination of a driven shaft, two disks thereon and normally loose. with respect thereto and one of them having concentric rows of 1 gear-teeth, the other disk havingan annularseries of teeth, a movable clutch to connect either. of said disks with said shaft, concen-i tric shafts, pinions thereon to engage the teeth of the disks, a drivingshaft, and a clutch thereon movable to connect any of said pinj io'ns rota-ti'vely there wi th.

4.; In apower-transmission mechanism, the i tric rows of gear-teeth and the other disk having an annular series of teeth. acluteh to connect either of said disks with said housing,

concentric shafts; pinions thereon to engage the teeth of the disks, a driving-shaft, and a clutch thereon movable tooperatively connect anyof said pinions with said driving-shaft.

In a power-transmission mechanism, the

combination with a two partdriven shaft or aisle, adiiferential gearing connecting them comprising gears land 2* keyed thereon and a pinion or pinions 3 between and engaging them, a housing-ring connected with said pinions, two disksloose on said housing-ring one having ct centric rows of teeth, the other disk 11 having-anfannular seriestpf teeth a clutchingring connected w'i i said housing ring adapted i; J, 1 to be slrl laterally to engage either of said I disks connectitoperative'lywiththehousing ring; cion'centiie shafts imons to engage the teeth of the d and sliding clutch/the bearing on adapted tQQpd! ativeljv connect anv of s iiv pinions with said" driving-shaft.

6. In a power-transm'" "on mechanism, the combination with a two part driven shaft or axle, a differential gearing connecting them comprising gears 2 and 2 keyed thereon and a pinion" or pinions -fbetween and engaging themQal'iousing-ring'connected with lid pinions, two disks loose on said housing-ring one having concentric rows of gear-teeth, the other disk having, an annularseries of eetliand both. having clutching-tecth. a. clutching-ring having its edges toothed toengagejtheclutching teeth of the disks and connected with said disks with the housing'a'hne concentric shafts i ksfa d'ri inQ-shaft' hearing" pinions to engage the teeth of the A disks, adrivingon adapted to operatively connect. any ofsaid pinions with said driving-shaft.

7. A transmission-o-earing' having inc-shim, gears provi'h d with teeth having wedgej shaped edges and an elastic guiding-linger on one or more of the teeth.

is. In a transmission-gearing, meshingg'ears provided with teeth having wmlge-shaped edges and elastic lingers on said teeth 'iiliffer ently located asjyoards their position 'with respect to the body of the tooth.

-ln testimony whereof l allix my signature in the presence of two wih'icsscs.

ha ft and sliding'clutch therer

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