US737442A - Change-speed gearing. - Google Patents

Description

No.- 787,442. PATENTED AUG. 25, 1903. L. P. MOOERS.

CHANGE SPEED GEARING.

APPLICIATION FILED JUNE 16, 1902.

NO MODEL. 2 SHEETS-SHEET l.

I V? we 6 v 3 i EF iii/671K37 EYHIHIIIIIIIEIMHIII PATENTED AUG. 25, 1903.

'1. P. MOOERS. CHANGE SPEED GEARING.

APPLIUATION FILED JUNE 16, 1902.

2 SHEETSSHEET 2 N0 MODEL.

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IIIIIIII I'lllll llurrlll IIIZVII UNlTnn STATES Patented August 25, 1903.

PATENT ()FFICE.

LOUIS P. MOOERS, OF CLEVELAND, OHIO, ASSIGNOR, BY MESNE ASSIGN- MENTS, TO PEERLESS MOTOR OAR COMPANY, OF A CORPORATION OF WEST VIRGINIA.

CLEVELAND, OHIO,

CHANGE-SPEED GEARIN G.

SPECIFICATION forming part of Letters Patent No. 737,442, vdated. August 25, 1903.

Application filed June 1 6, 1902.

To all whom it may concern:

Be it known that I, LOUIS P. MOOERS, a citi zen of the United States, residing at Ole veland, in' the county of Cuyahoga and State of Ohio, have invented a certain new and useful Improvement in Change-Speed Gearing, of

' which the following is a full, clear, and exact looking to the right.

description, reference being hadto the accompanying drawings.

My invention relates to improvements in change-speed gearing especially applicable for use on automobiles which are driven by engines or motors which drive in only one direction and at approximately one speed.

The invention consists in the novel features of construction hereinafter described, reference being had to the accompanying drawings, which illustrate one form which I have contemplated embodying in my invention, and said invention is fully disclosed in the following description and claims. v

The object of my invention is to provide mechanism whereby one shaft may be driven from a driving-shaft either backward or at different speed forward at the will of the operator. I

Referring to the drawings, Figure 1 is a top plan viewof the lower section of the casing of my device, showing the gears and other parts in cross-section. Fig. 2 is a sectional plan view taken below the shafting and gearing, showing the operating mechanism. Fig. 3 represents a section on the line 3 3 of Fig. 2 Fig. 4: is a section on the line 4 4, Fig. I, looking to the left. Fig. 5 is a detail view of the reversing-pinion shaftshifter; and Fig. 6 is anenlarged view of one of the gears, and it illustrates one probably necessary structural characteristic of all of the gears.

In carrying out the a casing composed of ing suitable openings in the ends thereof for supporting the bearing-boxes a a a a which are held in place by the caps a a and the rings a a Y In a bearing-box a is mounted the end of the main driving-shaft B, having rigidly secured thereto a small pinion b and having above objects I employ the two parts A A, hav- Serial No. 111,804. on model) in its inner end an axial cavity 12', which is adapted to receive abushing Mounted in the alined bearing a is the shaft C, this being the shaft which the mechanism shown is designed to drive backward or forward at various speeds. This shaft has the squared portion 0 and the cylindrical end 0, which is rotatively mounted in the bushing b Slidably mounted upon the squared por:

tion 0 is a sleeve D, provided at one end with a spur-gear d and at the other end with the internal clutch-teeth and teeth (1 The internal clutch-teeth of the gear d are adapted to'engage and it upon the small pinion b.

Mounted in the bearing-boxes a a is a counter-shaft E, provided with the squared por-' tion 6. A small pinion e and a gear-wheel c are rigidly secured to the shaft, and between the gear e and the bearing a, upon the squared portion e, is slidably mounted the sleeve F, carrying a gear-wheelf and having a circumferential groove The squared portion e is so located with respect to the shaft E that when the sleeve F abuts against the small pinion e the gear-wheel fwill mesh with the small pinion b. The sleeve F is moved into and out of this position by means of a fork f which engages in its circumferential groove f 2 and is slidably mounted at its lower end upon the pin f secured to the lug f and to the casing. This fork is moved .to and normally held against thelug f", at which time the gear f and pinion b are in engagement by means .6c external spur-gear of a springf An operating-arm f n is rigidly secured to said fork f for a purpose will hereinafter be described.

Located in the casing in a suitable position with respect to the sleeve D is the sliding shifting-rod G, having rigidly secured thereto a fork g, which engages in the circumferen-- tial groove d in said sleeve and serves asa means for shifting the sleeve D and the gears carried thereby. A collar g is rigidly secured which to the shifting'rod g and has projectin g there-' from a lug 9 so placed thatit will engage the operating-arm f and thereby shift thefork f", and consequently the sleeve F and its gear f, which is thereby disengaged from gear I).

The collar 9 with its lug g is arranged upon the shifting-rod G, so that the teeth of the gear (I will be brought into complete engagement with the teeth of the gear a before the lug g engages the operating-arm f", and so also that the gearf will be entirely disengaged from the pinion 1) before the internal clutch-teeth of gear d engages said pinion.

A shaft H is secured to one end of the easing and to a lug e therein, and on this shaft a broad pinion his rotatably mounted.

This pinion has a hub 71., in which is a circumferential groove 7L2. 'A lever P is pivoted. to the casing below the pinion h. -At one end of this lever is a pair of jaws 19 19 oneof said jaws p being longer than the other. The other end of said leveris connected to a slide having at one end an upwardly-extended forlf p which engages the groove 711 -21116. is designed to shift the broad pinion h, A spring Q acts to hold the slide in the position shown, although it is moved into that position by the action of pin g on the lever P. The lever P is so located that its long jaw p will lie in the path of the pin g when the pinion. his out of engagement with the other gears.

The device is manipulated in the following manner: If it is desired to retain the shaft 0 at rest, the sleeve D, with its gears, is left in the position shown in Fig. 1, with the gear (1 out of engagement with the pinion e and the external gear (Z out of engagement with the gear 6 and also with the internal clutchteeth of the gear (P out of engagement with the pinion I). Should it be desired to obtain a medium speed, the sleeve D is movedso that the teeth of the ear (l -will engage the gear e High speed is obtained by shifting the rod G still farther in the same direction, and therebycarrying the gear (I along until the lug engages the arm f, thereby unlocking the gear f from the pinion b and then bringing the internal clutch-teeth of the gear (1 into en gagement with the pinion Z). When it is desired to drive the shaft C- forward at slow speed, the shifting-rod G is moved inthc contrary direction until the fork g shifts the sleeve D and carries the gear-wheel (1 into engagement with the small pinion e To reverse the motion of the driven shaft, the shift ing-rod G is moved still farther in the same direction until the gear (Z passes out of mesh with the pinion e whereupon the lug g engages, the jaw 11 of the lever P, thereby rock- I ing the same and causing it, by means of the slide p (shown in Fig. 5) and the fork p, to move the broad pinion it into engagement with the pinion e and the gear (I, which moves toward it. The movements of the different parts when in the position just described will be thus: Motion is conveyed from the pinion Z) through the gear f to the shaft E, from thence by the pinion e to the broad pinion 7t and to the gear-wheel d, which drives the shaft 0. This, by reason of the difierent movements of the gears, will convey a reverse movement to the driven shaft 0. \Vhen the shifting-rod G is moved again in the opposite direction to disengage the reversing mechanism,tlie lug g engages the arm p thereby rocking the lei'er and positively moving the broad pinion h out of engagement with the pinion 0 It must be borne in mind that these parts may be interchanged and varied according to the desire of the mechanic without departing from the spirit of this invention.

In order to facilitate the engagement of the,

several gears as stated, it is probablynecessary that the end of the several teeth be tapered and the end of' the interdental spaces flaring, which const uction is illustrated in Fi 5.

flaving described my invention, I claim- 1. In a ch ange-speed gearing, the combinaengagement with the gear on the main shaft,

and means for communicating rotation from the gear on the counter-shaft to the driven shaft, substantially as described.

2. In a change-speed gearing the combination with a main driving-shaft, of a gearsecured to it, a driven shaft mounted in axial IOO alinement therewith, and a parallel counterig5 shaft, three gears mounted on said counter shaft, one being for engagement with the gear on the driving-shaft, a memberprovided with internal clutch-teeth and two external gears and movable endwise only upon the driven shaft, said two external gears being adapted .for engagement with two of the gears on the counter-shaft, and said member provided with internalclutch-teeth being for engagement with the gear on the driving-shaft, and mechanism for moving said three gears, substantially as described.

3. In change-speed gearing, the combination with a driving-shaft of a gear secured to it, a driven shaft mounted in axial alinement therewith, a parallel counter-shaft and an endwise-movable reversing-gear mounted on a-parallelaxis, with three gears secured to the counter-shaft, a movable member provided with internal clutch-teeth and two external gears movable endwise only upon the driven shaft, and mechanism for moving said gears and also for moving the reversingrgear, substantially as described 4c. In a change-speed gearing, the combination with the main driving-shaft and driven shaft, of a counter-shaft, suitable gears slidably mounted uponsaid driven shaft, means wherebysaid gears are adapted to rotate with said driven shaft, means whereby said gears maybe shifted into different positions, a gearwheel slidably mounted upon said countershaft adapted to rotate the same, means whereby said gear may be thrown into and out of operation with the main driving-shaft, a gear rigidly mounted upon said countershaft, a pinion also rigidly mounted on the counter-shaft, a second counter-shaft, a pinion mounted thereon adapted to reverse the motion of said driven shaft, means whereby said gears upon said driven shaft may be thrown into operation with said pinion upon said counter shaft, and said gear-wheel on said counter-shaft, and means whereby said gear loose on said first-mentioned counter-' shaft may be thrown out of operation, and said driven shaft operated in direct connection with the main driving-shaft, substantially as described.

5. In a change-speed gearing, the combination with the main driving-shaft of a small *pinion, a driven shaft, suitable gears slidably mounted endwise only on said driven shaft for operating the same, a counter-shaft, a gear slidably mounted endwise only and adapted normally to be retained in engagement with the pinionon said main drivingfixed pinion upon said counter-shaft and said gear on said driven shaft are out of engagement, and means for shifting all of saidgears, substantially as described.

6. In a change-speed gearing,-the combination with the main driving-shaft of apinion, and a driven shaft, of a eounter-shaft, gears slidably mounted endwise only on said driven shaft and adapted to rotate the same, a gear slidably mounted endwise only on said counter-shaft and adapted to rotate the same, "a shifting-fork controlling the movement of said gear and normally retaining the same in engagement with the pinion upon said main driving-shaft, an operating-arm secured to said gear-operating fork, a fixed gear and a pinion upon said counter shaft, a second counter-shaft, a broad pinion loosely mounted upon said second counter-shaft, an operating-fork for said broad pinion adapted to normally retain said pinion in an extreme position, an operating-lever-for the operatingfork of said broad pinion, a shifting-rod, a

fixed fork upon said shifting-rod adapted to shift the gears upon said driven shaft, a lug provided on said shaft for tripping said operating-arm'of said gear upon said first-mentioned counter-shaft, and a second lug provided upon said rod for engaging said operating-lever of said broad pinion, substantially as described.

7. In a change-speed gearing, the combination with the casing and main driving-shaft of a pinion, mounted in said casing, a driven shart also mounted in said casin g and having gears slidably mounted endwise only on said shaft and a shank having its bearing in the end of-said main driving-shaft, one of said gears having internal clutch-teeth, the internal clutch-teeth being adapted to engage the pinion on the main driving-shaft, a counter-shaft rotatably mounted in said. casing, a gear loosely mounted upon said counter-shaft and adapted to slide into and out of. mesh with the gear on the driving-shaft, a gear upon said counter-shaft, a fixed pinion upon said counter-shaft, a fork operating said gear loosely mounted upon said counter-shaft and normally retaining the same in engagement with the pinion upon the main driving-shaft, a coiled spring insuring this position, an opcounter-shaft rigidly mounted in the casing, a broad pinion loosely' mounted upon said rigid counter-shaft, a lever mounted in said casing, a link carried by said lever, a fork carried by said link for operating said broad eratin'g-arm secured to said fork, a second pinion, jaws upon said lever, a shifting-rod entering said, casing, a fixed fork upon said rod for operating the slidably-mounted gears upon said counter-shaft, and a lug for engaging the jaws of said lever thereby operating the same, substantially as described.

In testimonywhereof' I hereunto affix my signature in the presence of two witnesses.

I LOUIS P. MOOERS. Witnesses:

E. B. GiLoinnsr,

ALBERT H BATES.

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