US645902A - Motor-gearing. - Google Patents

Description

No' 645902' Patented Mar. 20, |900 E. A. SPERRY.

MOTOR GEARING.

(No model y mimi ed Au- 25, 189s.)

No. 645,902. Patented Mar. 20, |900. E.. A. SPERBY.

MUTUR GEARING.

(Application led Aug. 2'5, 1898.) (No Model.) 2 Sheets-Sheet 2.

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UNrTPED. .STATES- -PATENT OFFICE'. f

ELMER A.- SPERRY, cbr-CLEVELAND, onionssenon 'ro 'r1-1nl oLEvELAnn MACHINE scnnw COMPANY; on SAME PLACE.

srnlcrrrca'rlon forming part of .Letters Patent No. 645,902, dated march 2 0, '1900.

Application liled August 25, 1398. Serial 150.689.462. (No model.) i

To @LH whom, to 1yr/wy concern:

Beit known that I, ELMER A. SPERRY, a citizen of 'the-United States, residing at Cleve- 1and,'in lthe county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Motor-Gearing, of wh-ich the following is a specification.

My inyention relates to motor gearing adapted especially for vehicles, whereby the power connections from the motor to the driving-wheels, axle, or axles may be compounded at will and the motor may be given an increased leverage over the load. lt also relates to' manipnlatingconnections for the gearing and interlocking device with the control of the vehicle, whereby the compound gearing and power connections are inte'rclated as to their operations, all of which is described and'fully set forth in the present specification and illustrated in the accompanying drawings, in which Figure l is a sectional view of the motor housings and gearing, Fi g. 2, a diagram showing arrangement of the control and lock for the' change-gear devices.' Fig. 3 is supplementalto Figs'. 1 and 2, beinga section throughthe intermediates'hat, showin g change-gear, Fig. 4 is a diagranimatof'vicw showing the manipulating devices mounted upon the body connected with the operating parts of the motor-gearing,

Similar letters of reference indicate like parts throughout.'

V'Referring now to Fig. l, 1ct A and A represent the members, respectively,of a compound axle, a planetary-gear arrangement being clearly'illustrated. To these shafts are con-` nected, respectively, gears meshing with revolving pinions, allwithin the oil-housing B', furnished with oil-plug a. The housing will be, seen to consist of the extended web of the gear C, which meshes with the pinion D, all within tire inclosing housing a. The jack- ,in-.the-box" structure being familiar it will not be explained'in detail. The pinion D is mounted upon a shaft D', which in turn is mounted and. iournaled within the motor- 'heirsings-,whlch-receiJe support from the jour- 'nalsA" Af",mounted upon the compound axle.

,The motor-housings E are secured to the circular journal-case4 A by twosurfaccd angular recesses, preferably parallel with the axis, for holding the parts accurately in line, beine' clamped-by suitable bolts, (shown at E E'.

The 'shaft D is preferably supplied with a driving-gear b, which meshes with the motor'- pinion o'. One form of a mechanical clutch or biake is shown,`consisting of the diskib", cooperating with the bevel-face within the -gear at b3 and supported by 'pins c c, which slide in the yoke c', suitably attached to the motor frame or housing E and-serving at its center to hold a rotating screw-threaded shaft c", rotated by the 'arm c3, the screw-threads operating to insert and withdraw the conical friction-disk b. All is preferably surrounded by the housing b4, separable at b5. The other end of 'the shaft D is sockcted for the reception of the rod d, fitted to slide within lthe socket. 'The pin d', carried by the rod d, extends laterally through an elongated slot (clearly seen) and having its ends securely fastened within the internal circular groove,

(clearly seen at (1".) The rod d in moving,

backward and-'forward thus serves to move the pinion D, which is loose upon the shaftD', out of and into engagement with the clutch D", rigidly attached to shaft D'. This clutch, may be'of any suitable construction-fetich, for instance, as afriction-clutch-but I prefer to use'the positive jaw-clutch shown, so

that when the pinion D is slipped to the left,

as shown, it is free from the clutch and to the .right it is in engagement therewith.` The pinion is moved bya swinging cam F',tnoun'ted upon the cam-lever F, Swingin g about a pivot F", reference to which will be made later Attention is called to the fact that the pin-uv ion D is in a positionv difficult of lubrication, which is required when the same is free upon the shaft.: This of necessity is done away with by supplying it with a roller-bearing consisting of a circular rollof needles, (indicated at: di) this style 'of bearingbe-ing also adapted for longitudinal motion upon the'sha'ft, necessari-.f in this instance. shaft D' is suppliedwith the rigidly-attached gearD?. (Clearly seen in the'gures.)

z atrasos This gear is organized to mesh with gear D* on a swinging shaft D", (clearly seen in Fig. 3,)-being pivoted at F" in the housing E and being manipulated by lever F, which attaches lto pivot F" outside the housing. Integral with the gear D and' rigidly attached thereto is gear D, which, together with D, is organized to turn loosely upon the shaft D5 and .which is organized tomesh with masterplaxo-ion D, mounted loosely upon shaft D'. It will be seen that by the use of lever F the `shaft D* is swung into and out of -mesh or operative engagement with its coperating gears, and at thc same time the master-pinion D may be` made to engage and disengage with its coperating clutch D" by means `of the cam F', (clearly seen in the ilgurcs,) which is mounted upon lover-FJ -and moves therewith. This cam engages rod d,provid`ed with. an engaging pinl d, manipulating the rod d longitudinally within the socketd shaft D','and thus manipulatingv one member lot' thecoperating clutches. The arrangement shownin thedrawingscontcmplatesthe movement of the loose pinion D longitudinally upon the shaft, so that the engaging teeth B may be engaged, and'this action will be seen to occur at the same time that the throwing in'and out ot engagement of the'gears upon the shaft D takes'placathe camfslot being of such contour that'the action is not -simultaneous with the actual engagement of the gears, but rather occurs dissimultaneonsly or successively, the clutch beingdise gaged before the gears are engaged, and vice versa.

In Fig. 3 is seen the lateral pin cl, which serves to connect the rod d with the cam F. The contour of this cam is plainly seen iu the figures and opera-tes to engage the pinion D with its clutch D" and with its coperatinggear alternately, 'there being a position where b othl are disengaged and there being a region in;` the center 4part ot the 'cam where one isdisengagedbefore the other is engaged and where' the pinion is entirely free from either. v

Owing tothe mechanical strains brought to bear upon the lever F and its connected parts, a mechanical lock is used, shown by the latch e and its cooperating stationary vpart e", having an undercut pawl pivoted u on the lever F at e engagiugthe linger e. The finger e is pressed upon at one side by a spring e and upon the other side engages a pin f, connected rigidly with the rod ff. The pin f slides in aslot, (shown in dotted lines at 11",) constituting a lost-motion device, in the' head of the lever F, so that the pin f laftertraveling ajshort disiance`coiues into rigid engagement with the leverin either one or the otherdirection. The rodf is mani pu lated by any suitable device-located, for instance, in a carriage. From the dierent diameters of the gears D, D, D, Mill-D lncreased leverage from their use will readily be understood. It will also be seen that the pinion'D serves two other gears-viz., beingin constant engagement with the main drivin ear C and also at times with the gear D'. '7o uitably mounted, for instance, withina vehicle-body X (see Fig. 4) isjthe controller Ufer the motor M, (indicated at l{,) ivoted so as to revolve in journals H' ll' an supplied at some point in its moving systemfor instance, at the base of the cylinder-with a disk g, havingnotches, one of which is shown at g', and which serve to allow the segment G to pass.,freely. The segment G forms a part of the manipulating system orconnection 8o for the compound gear, as described above. Itwill be reen that when the controller is so turned that a notch g is presented in the path of the segment ,G the handle G may be I manipulated freely; b utit the controller ists not so turned that anotch is present the han. die G is locked, and this lockingactionmaj' take place in either ot its extreme positions," This position I will denominatg as that in which the controller is out of action-viz., 9o when the segment Gis allowed to pass freelyand i-t will be seen that when the segment is only partially turned thelcontroller will be locked in this ositio'n or locked out of action and proven from turning into any one o( 9 5 its active positions. Moreover, it will'benoticed that should the operation f the handle v G be stoppedin the middle ot itscxeursionsay at notch indicated at Gthe segment Q will then be found only part way through the :a notch, thereby eectually locking the controller H from rotation in either direction, as' above referred to. yOf course the notch g." may be a wide one, so that'thclockls effectual onlyin one direction, without departing from le; the spirit of the invention.

In or about thel vehicle and within operating distance of thc rnanipnlati'ng-handle G orv its connected parts is the limit-switch or automatically-operatingeen-releasingcut4oor r n cut-out. The operation of this device is well' known and may be briefly referred to as follows: The magnet z' when energized retracts its hooked armature i', pivoted, shown, against the sprin" i", which has predeterug mined-tension. i he ,hook cooperates with the nose v'Pof the leverj, which. also is'furnlshed with the rei ra ctile sprngj. The stationary contact, which may be in circutwith the magnet t', is shown at 7c and coperates ne ,with the Contact k', mounted upon the leverj. When these contacts are closed, the circuit e is complete and -the hook engages the nose is and holds the contacts in closed-circuit re l lation against the tension of the spring j'. x25 Whenever the current increases beyond @cery tain strength, the heoked armature -t'fisre-'i tracted, releasing the leverj and allowingthe;I springj' to open the contacts It and k'.' 1 fer to rengage the cui-oil cont-acts or closjello the circuit by a movement of the handle G for the following reasons, among others: first, the double use of the same handle simplifying construction and operation, and, second,when the limit-switch or cut-off operates it indicates that an extraordinary demand is being made upon the motor and may be made to indicate that the compound gear, which greatly increases the leverage of the motor over the load, should be called into operation, and it is natural that the same handle be made in this way to accomplish both purposes-viz., that of increasing the power for the motor over the load, and thereby correcting the cause, and restablishing the circuit, so that its operation may again go forward.

The use and operation of the various structures have been faithfully pointed out as they have been described and will readily be understood by those versed in the art to which it pertains.

It will be readily seen that some of the rotating members-for instance, shaft D'are exposed and not housed. Such exposed rotating parts are useful in bringing the teeth of the clutch or gear opposite, so as to properly mesh when throwing the lever F. This lever, it will be noticed, may always be thrown out of gear or into its middle position from either extreme position. The rotating parts being thus freed, their rotation, as above, may be accomplished by any means, preferably without rotating the axle A, and it is found convenient for properly throwing the changegear mechanism. The lever F or connected parts are provided with retaining means, preferably for both operative positions, as well as the central or inoperative position, one form of such locking device being shown in Figs. 2 and 4 by the notches G G2 G3, cooperating with the stationary member H, all of which may be operated by the handle G.

It will be readily understood that while it is designed to use the above parts in the relation shown, yet some may be used without the others, and the invention extends to such use.

It will be furthermore readily understood that the construction and arrangement may be varied without departing from the spirit of the invention.

IIaving thus described my invention, what I claim, and desire to secure by Letters Patent, is-

l. In a motor-gearing, a shaft and first gear upon the shaft, a fourth gear mounted loosely upon the said shaft and a clutch upon the shaft coperating therewith, a device for engagin g and disengaging the clutch, a movable shaft, a second and third gear on said shaft, meshing in order numbered with the iirst and fourth gears on the first-mentioned shaft, means for Swingin g the movable shaft and an operating connection between the said means and the said device.

2. In a motor-gearing, a socketed shaft, a clutch upon the shaft, a gear mounted loosely upon the shaft, provided with a coperating clutch, a device for engaging and disengaging the clutch, protruding'beyond the end of the shaft from the socket, and a swinging lever, bearing a cam and operating connection between the cam and the device.

3. In a motor-gearing, a first gear suitably mounted, a fourth gear mounted loosely, a coperatin g clutch for said fourth gear, a device for engaging and disengaging the clutch, a movable shaft, a second and third gear on the movable shaft, meshing with the iirst and fourth gears, means for swinging the movable shaft, an operating connection between the means and said device, and a socketed shaft for the said first and fourth gears and the clutch.

4. In a vehicle-motor gearing, a changegear mechanism, an operating means extending to the mechanism, a controller for the motive power and an interlock between the means and the controller.

5. In a vehicle-motor gearing, a changegear mechanism, an operating means, extend` ing to the mechanism, a controller for the motive power and a device operated by the means for locking the controller out of action when the change-gear mech anism is in its disengaged position.

6. In a vehicle-motor gearing, a changegear mechanism, an operating means extending to the mechanism, a power cut-oif and an actuating device for the cut-off, operated by the means.

7. In a motor-gearing, a drive-wheel gear, a revolving source of power, an intermediate shaft between the source and the gear, having a pinion meshing with such gear and a gear which sustains the connection to the said source, the last-named gear being hollow and having an internal face, in combination with a brake organized for cooperation with the internal face of the gear.

8. In a motor-gearing, a revolving source of power, connected to the drive-wheel gear through an intermediate shaft, a large and small gear upon such shaft, the large gear being bored from one edge, offering an internal friction-surface, a non-rotatable friction m ember, cooperating with such surface and an operating means for such member.

9. In a motor-gearing, a shaft and iirst gear upon the shaft, a fourth gear mounted loosely upon said shaft, and a clutch upon the shaft cooperating therewith, a device for engaging an-d disengaging the clutch, a movable shaft, a second and third gear on said shaft meshing in the order numbered with the first and fourth gears on the irst mentioned shaft, means for swinging the movable shaft, an operating connection between the means and the device, and a locking device for the means.

IO. In a motor-gearing, a shaft and first IOC IIO

IIS

Igear upon the shaft, a fourth gear mounted loosely upon said shaft, and a clutch upon the shaft cooperating therewith, a device for engaging and disengaging the clutch, a movable shaft, a second and third gear on said shaft meshing in the order numbered with the first and fourth gears on the first-mentioned shaft, means for swinging the movable shaft, an operating Connection between the means and the device, and a three-position locking device Io for the means, whereby the same may be retained in its two operative and also in its inoperative positions.

ELMER A. SPERRY.

Witnesses A. D. DANA, l M. C. PRENDERGAST.

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