US837125A

US837125A - Gearing.

Info

Publication number: US837125A
Application number: US28866405A
Authority: US
Inventors: Carl C Riotte
Original assignee: Individual
Current assignee: Individual
Priority date: 1905-11-23
Filing date: 1905-11-23
Publication date: 1906-11-27
Anticipated expiration: 1923-11-27

Description

No. 837,125. PATENTED Nov. 27, 1906. o. o. MOTTE.

GEARIN G.

APPLIUATION FILED Nov. 23. 1905.

2 SHEETSSHEET CARL Cf RIOTTE, OF JERSEY CITY, NEW JERSEY.

GEARING.

Specification of Letters Patent.

Patented Nov. 27, 1906.

Application filed November 23. 1905.v Serial No. 288.664.

To @ZZ whom it may concern'.-

Beit known that I, CARL C. Riorrn', a citizen of the United States, residing at Jersey City, Hudson county, New Jersey, have invented certain new and useful Improvements in Gearing, of which the following is a full, clear, and exact description.

My invention relates to mechanism for use in connecting or disconnecting a drivingsha-ft with a driven shaft, the construction also being such that the driven shaft may be rotated in the same or a reverse direction to that of the driving-shaft or uncoupled therefrom.

It is the object of my invention to provide against overloading the engine when the driven shaft is reversed. In clutch mechanisms where planetary gears are employed when the driven shaft is reversed a considerable friction is set up which in addition to the load on the driven shaft tends to overload the engine and out its speed down. Since such devices are ordinaril applied to gas-engines, it is obvious that tiie cutting down of the speed by an unnecessary frictional load is a double handicap, because not only is the s eed out down, but the engine being slowed own `loses substantially in its efficiency. By my invention this danger is entirely eliminated, and the engine works with the saine freedom and certainty when the reverse is applied as though the driven shaft were being propelled in the same direction as thc engine-shaft.

Another object of the invention is to improve the clutch-actuating mechanism and to provide for convenient and ready adjust.-

` ment of the same.

'supporting frame or bracket..

ot i

These and other advantages will be apparent to the mechanic skilled in the art from an understanding of the drawings and a readin@ of the specification.

igure 1 is a longitudinal sectional view of an apparatus of my improved construction, certain parts being shown in elevation. Fig. 2 is a side elevation as said apparatus appears in lace. Fig. 3 is an end elevation of the mec anism looking from left to right, certain parts being shown in section. lfig. 4- is a detail view in perspective. Fig. 5 is an end elevation of the planet ary gears and their lfig. is ancr detail view. 1 is the driving-shaft. 2 is the driven shaf" 3 is the gear-case mounted to revolve on the ends of the driving and driven shafts and overstanding the adjacent ends of said shafts.

4 is a bevel-gear fixed on shaft 1.

5 is a bevel-gear fixed on shaft 2.

6 is a frame or planetary-gear bracket. 7 7 are planetary gears mounted on suitable pivotal bearings 8 S in said bracket 6. The bracket 6 is revolubly mounted onvthe hubs .of the gears 4 and 5 and is keyed to the gearcase 3. The gears 4 5 are of relatively different diameters', the gear 4 being smaller than gear 5. The planetary Gears 7 are mounted obliquely, so as to mesli with both of said gears 4 5 at all times.

3 is an open-ended extension at one end of the gear-case, within which is located an expanding clutch-ring t). This expanding clutch-ring isbest seen in Figs. 3, 4, and 6. The ring 9 is secured at 10L1 to a bracket 10. Thel bracket 10 is keyed to the driven shaft 2. Between the free ends of the clutch-ring 9 I locate a novel form of expanding mechanism whereby said ring may be expanded and whereby wear may be compensated for whenever necessary. This expanding mechanism comprises a shaft 11, revolubly mounted in the bracket 10. 13 is .a dog or 'arm mounted on said shaft 1 1 and capable of being angularly adjusted thereon. 11a 11b 11b are cams or equivalent devices on sha-ft 11. 12 12 are. spreader members serving as links, one end of e ach spre ader member taking up against a suitable abutment 9 Q on the ring 9, the other end of each of said members taking up against the cams 11EL 11b, respectively. 13 is an adjusting-screw carried by the arm shoulder on the shaft 11, whereby the angular adjustment ofthe arm 13 may be effected by moving thel screw in or out.

From the foregoing it will be seen'that when the arm 13 isl swung to the left, as viewed in lf ig. 3, a rotary motion will be iinparted to the. shaft 11 'and the cams 11L 11b, the. latter spreading the links 12 12 and causing thering El to expand, so as to bring it into locking engagement with the end 3 of the case 3. 'i

14 is a band-ln'ake for the case b. 14u is an offset portion or shoulder, which may be i fastened to the base 15 so as to prevent said j hrakc rotating with the gear-case. One'free t end 14D of said brake may also receive a rigid 13, said screw end bearing against va suitable" IOC ' retracted.

ysupport on the base 15, while the other end 14c may b e engaged by one end of a link 16,

cam an said shaft 18, arranged to alternately operate with the arm 20. 21 is a cone slidable upon the driven shaft The arm is suitably engaged with the cone 21, as by a strap 22, sothat by moving the arm 20 the cone 21 may be advanced or 13b isan antifriction-roller on vthe end of the arm 13 and in the path of movement of v the cone 21.

. 21a is an annular groove in the cone 21, in which groove the periphery of the antifriction-roller 13b stands when the cone is advanced. This serves as a means for preventing accidental dislodgment.

The end of the cam 19 may be flattened, as indicated in Fig. 2, so that it will take a square bearing against the vlever 17 when the same is set, said'position being indicated in Fig. 2. This serves as a means to prevent the accidental dislodgment of the reverse mechanism. The angular position o f the arm 2() ,and the cam 19 is such that one is entirely thrown 'out before the other-is thrown into action', with the result that all the parts are uncoupled at the intermediate osition.

Operation: For normal running a ead the controlling-lever is moved so as to cause the cone 21 to swing the arm 13 and expand the ring 9, by which means the driven shaft 2 is then coupled with 4the gear-case 3. The

power going in through driving-shaft 1 will' then take the following course: from drivingshaft 1 to gear 4, to Igear 7, and to the gearcase 3. The gear-case 3 being locked to the shaft 2, all of the parts are required to revolve bodily, and hence the two

shafts

1 and 2 will be revolved in the same direction at the same speed. To reverse, the controlling-lever is swung so as to retract the cone 21, which frees the arm 13, whereupon the ring 9 contracts and frees the case. The continued movement f the controlling-lever l swings the cam 19 so as to operate lever 17,

drawing the band-brake 14 tightly upon the case 3 and checking its rotation, whereupon the power of the'driving-shaft 1 will then be directed to the driven shaft 2 as follows: from shaft 1 to gear 4, to planet-gear 7, which latter then being incapable of planetary movemerit transmits the power infa reverse direction to gear 5, which being keyed to driven shaft 2 rotates the latter in a corresponding direction. l

than gear 5, drives the latter more freely than if it were the same size,v and the differencein ratios of said gears is sufficient to compensatev for the added friction produced by the rotation of the planetary gears 7 on their own axes. As a result of this arrangement the load upon the engine is constant whether .the driven shaft is rotated in the forward direction or in a reverse direction.

What I claim isscribed, a driving-shaft, a driven shaft inline therewith, beveled gears on the ends of said shafts, said gears being of diHerent diameters, the smaller of said gears being always carried by the driving-shaft, a beveled planetary gear arranged obliquely and meshing gear-case, a bracket carried thereby, in turn carrying said planetary gear, means for locking said gear-case to the driven shaft, means for locking said gear-case against rotation, said locking means working alternately.

2. In an apparatus ofthe character desaid gears being of different diameters, the smaller of said gears being always carried by the driving-shaft, a planetary beveled gear arranged' obliquely and meshing with said first-mentioned gears at all times, a bracket for said planetary gears, a gear-case revolubly mounted on said shafts and carrying said bracket, means for locking said gear-case to said driven shaft, comprising a clutch-ring, a bracket therefor, said bracket being carried by said driven shaft, a cam-shaft carried by said bracket, means of connection between said cam-shaft and `said clutch-ring, means for rotating said cam-shaft, comprising a swinging arm carried by said cam-shaft, and an arm-operating member carried by said driven shaft. K

-3. In an apparatus of the character described, a` driving-shaft, a driven shaft in line therewith, beveled gears carried thereby, said gears being of different diameters, the smaller of said gears being always carried by the driving-shaft, a planetary beveled gear arranged obliquely and meshing with said first-mentioned gears at all times, a bracket for said planetaryA gears, a gear-case revolu- /bly mounted on said shafts and carrying said bracket, means for locking said gear-case to said driven shaft, comprising a clutch-ring, a bracket therefor, said bracket being carried by said driven shaft, a cam-shaft carried by said bracket,1neans of connection vbetween said cam-shaft and said clutch-ring, means for rotating said cam-shaft, comprising a swinging arin carried by said cam-slurf@ and l an arm-operating member carried by said As before stated, the gear 4, being smaller at all times with said rst-men'tionedgears, a`

1. In an apparatus of the character described, a driving-shaft, a driven shaft inline therewith, beveled gears carried thereby,

ICO.

and-brake for the outer side of said gear-- case, said'band-brake being held against rotary movement, a link connecting one-free end of said band-brake, a lever engaging said link, and a cam for engaging said lever, means ormoving said earn to swing said le verand operate said brake.

5. In an apparatus of the character de scribed, a driving-shaft, a driven shaft in line therewith, beveled gears carried by said shafts, 'said gears being of diiiierent diameters, the smaller of said gears being always carried by the driving-shaft, a gear-case, a planetary beveled .gear obliquely mounted Within said gear-case and meshing at "all, times with said first-mentioned gears, means for locking said gear-case against rotation,

comprising a band-brake for the outer side oiV said gear-case, said bandbrake being held against rotary movement, a link connecting one free end of said band-brake, a lever engaging said link, an l a cam for engaging said lever, means for moving said cam to swing said lever and operate said brake, and means for adjusting the band-brake Connection to vary the degree of clamping pressure upon the gear-case and compensate Ator Wear.

,6. In an apparatus of the character described, a driving-shaft, a driven.- shaft in line therewith, beveled gears on the ends of said shafts, said gearsfbeing oi' diii'erent diameters, the smaller of said gears being always carried by the driving-shaft, a beveled planetary gear arranged obliquely and meshing at" all times with said inst-mentioned gears, a gear-case, a bracket carried thereby, in turn carrying said planetary gear, means for locking said gear-case to the driven shaft, means. for locking said gear-case against rotation, said locking means Working alternately and being Jformed so as to be held against aceidental disengagement from their locking p0- sitions respectively.

7. 'In an apparatus of the character described, a ,driving-shaft, a driven sh aft in line therewith, beveled gearsfon the ends of said shafts,- said gears being oi'v diii'erent diameters, the smaller of said gears being always carried by the driving-shaft, a beveled planetary gear arranged obliquely and meshing at all times ,with said inst-mentioned gears, a gear-case, -bracket carried thereby, in turn carrying said planetary gear, means for locking said gear-case to the driven shaft, means for locking said gear-case against rotation, said locking means Working alternately, and controlling means for-alternately actuating said locking devices, comprising a single shaft and devices thereon tor making contact with and moving said locking device from the locking position to the unlocking position and vice versa.

CARL C. ROTTE.

Witnesses z R. C. MITCHELL, L. VREELAND.