US1543891A - Mechanical movement and engine - Google Patents

Description

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Patented June 30, 1925.

UNITED STATES B95433931 PATENT OFFICE.

JOHN C. "lV'llIIlILIAlVJIS,v OF MIAMI, FLORIDA, ASSIGNOR 'IOA JOHN C. WILLIAMS CORPORA- TION, OF 'MIAML FLORIDA, A CORPORATION 0F FLORIDA.

MECHANICAL MOVEMENT AND ENGINE.

Application led October G, 1924. Serial No. 741,919.

/ 1o all whom t may concern:

Be it known that I, JOHN C. WILLIAMS, a citizen of the United States,land a resident of Miami, county of Dade, State of Florida, have inventeda certain new and useful Improvement in Mechanical Movements and Engines, of which the following is a complete specification.

The present invention relates to power' devices, and particularly to apparatus designed to utilize a relatively small mechanical effort for the driving of machinery through the medium of gearing and levers or the like so arranged as to increase the mechanical advantage possessed by the driven'element from which connection is made to the machinery to be operated.

Accordingly, one object of the invention is to provide an improved mechanical movement consisting of a driven gear wheel operated by a lever and mechanism acting to impart a circular movement to the lever about an intermediate fulcrum point, for intermittently engaging the teeth of the gear wheel and, by a prying effort, imparting a step by step movement to the wheel. It is also sought to devise animproved form of apparatus utilizing the mechanical movement just referred to, in which a set of levers and' operating members are employed for lactuating the gear wheel, the arrangement ofthe levers being so carriedV out and their operation so timed as to develop a nearly continuous movement of the driven gear wheel.. i

Wvith the foregoing objects in view, the invention will now be described by reference to the accompanying drawings illustrat-ing one form of construction which I have rdevised for embodying the proposed improvements, after which those features and combinations deemed to be novel will be particularly set forth and claimed.

In the drawing- Figure 1 is a side elevation illustrating an apparatus constructed in accordance withthe present invention g Figure 2 is a plan view of the same;

Figure 3 is an end elevation of the apparatus;

e Figure I is an elevation of the driven gear member of the apparatus, having represented thereon the different positions ocoperative ends ofthe levers by which rotadriven.

, Figure 2.

Referring now to the drawings in detail, these show a construction comprising a base plate on one end of which is supported a standard or bracket l2 providing a bearing 18 for theshaft lof a master bevel gear wheel which may be rotated manually by means of a crank 16 on the outer end of the shaft 14: and provided with a suitable handle 17. At the upper end of the standard 12 the same is forked as illusw trated in Figures 2 and 3, and in the ends of therforked portion are mounted stub shafts 18 in downwardly inclined position, for journaling a pair of bevel pinions 19, 20, which are meshed with the upper portion of the gear 15. At its base, the standard 12 is also provided with a pair of upwardly inclined stub shafts 21 for journalingl a pair of bevel pinions 22, 23, which are meshed with the lower portion of the gear 15.

Near the other end of the base plate 1() is mounted a pair of bearing standards 25 for supporting a transverse shaft 26 to which is keyed a pair of gear wheel members 27, in spaced relation for accommodating between them a pulley element 28 to which a drive belt (not shown) may be applied for transmitting power to any appliances to be Since the gear .wheel members 27 are duplicates and keyed to the same shaft, they operate in effect as a single gear wheel member in driving the shaft 26 and pulley 28 in response to the driving action imparted thereto from the bevel gear 15 through the bevel pinions, in the manner now to be described. f

Intermediate the standards 12 and 25, is mounted, on the base plate 10, a pair of frame members 80 opposite each of the gear wheel members 27 and each of the frame members is provided with a pair of suitable ball bearing members 32 for slidingly accommodating the operative or gear-tooth engaging ends of a set of levers 33, v 84, 35 and 36 which are connected by universal or ball and socket joints, as indicated at 31 (see Figure 5) to the bevel pinions 23, 20, 19 and 22, respectively. It will now be seen that the angular arrangement of the shafts itu 18 and 21, and the elevation of the shaft 14, are such as toproject the operative end of each of the levers 33 to 36 into operative engagement With the teeth of the gear Wheel members 27, and toalternatively retract said levers from engagement with the teeth of said gear Wheel members, once for each revolution of the corresponding bevel pinions. This feature is illustrated in Figure l, itVV being further noticed that the inclination of the bevelY pinions and the location of the bearings 32 for the levers are such that the' levers are retracted from the gear Wheel members 27 during the travel of the lioints 31 of the levers through the lovver pathsof their movement along with the bevel pinions, while the operativeY ends ofsaid levers are enggaged with said gear Wheel members during the travel of said joints 31 through the upper paths of their movement with the pinions.

The operation of the apparatus is carried out by the rotation of the crank 16', thereby7 producing rotation of the master gear 15 and the bevel gearpinions 19, 20, 22 and 23, which rotation may, of course,tale place in either direction, according to the Ydirection in Which it is desired to turn the shaft 26. As the bevel gears are rotated, this Will yimpart corresponding rotation to the joints 31 and corresponding ends of the levers 33 to 36, with the result that the inner or opera, tive endsV of said levers are correspondingly rotated in the same directions, and this rotation is obviously accompanied by a sliding movement Within the ball bearingsV 32 as required by the retracting and advancinUr movement of the levers, due to the inclined positionsy of the'bevel gear Wheels.

Vtssuming now that a counter clockwisev movement is given the Wheel 15, which will producevcloclrvvise rotation of the bevel gear Wheels, and similar rotation of the inner or operative ends of the levers connected to. That is to say, a circular motion is imparted to the ends of the levers connected to the bevel gear Wheels. and a similar circular motion is imparted to the other or operative ends of said levers, and the arrangement of the bearings ofthe levers is suoli that this circular motion is that required for swinging the operative ends ofthe levers into and out of oositicn between the successive teeth of the gear Wheels 27, as has been illustrated diagrammatically in Figure l. In` the direction of operation being considered, Fig? ure e illustrates the operative end of the lever 33 moving from an entirely disengaged' or inoperative position andjust starting in the direction for engagement with thenext sncceedijngtooth of the corresponding gear Wheel member 2,7. `The operative end ofthe lever 34C has just started to move in between the teeth of the gear Wheel and is commencing its operative rotative engagement with .one of the teeth thereof. The operative end of the lever 35 has just completed its operative driving engagement With one of the teeth of the other gear Wheel member 2, and is beginning its `retracting movement out of engagement with the Wheel; and, finally, Vthe operative end of the lever 3G has half Way completed this operative movementir-the arrows in Figure a indicating the direction of circular motion of the operative ends of said levers. It Will be understood in this connection that the ends ofthe leversV are not in actual contact or engagement with the teeth ofthe gear Wheels 27 during the entire travel representedbythose portions of the small circles which inteiseot the gear teeth in Figure ll, as during a portion of this movement the levers are being actuated longitudinally for effecting the slight advancing and retracting movement, as has been above explained. hislength- Wise movement of the levers is of advantage, in that it facilitates the movement of the operativev ends of the levers into andout of operative position, and makes possible the use of a wheel of the ordinary gear Wheel type. I

From the foregoing it will beapparent that a simple and practical arrangementhas been provided for carrying out the desired objects of the invention, one of the important features of which is the application of a comparatively small mechanical effort for the driving of heavier machinery, the system and arrangement of levers employed being i plainly Vadapted to greatly increase the mechanical advantage which is gained `in the operation of thegear Wheel members 27 in the manner described..`4V The mode of operation is in some respects similar to that set forth in .Patent No,i 866,761 issued to me on September 24, 1907, but the `present arrangement and construction are-very much superior dueA to the fact that it is possible to accumulate momentum in the operation of theimproved apparatus on account of the use of a master gear 15 for operating the smaller gears connected vWith the operating levers. The improved construction furthermore is more nearly noiseless than that of I the type illustrated yin the patent referred to, and may be operated with equal efficiency in either direction.

lVhile l have illustrated and described what I now regard as the preferred form of construction for embodying the invention, I desire to reserve the right to make all such changes. and modifications as may fairly fall Within the scope of the appended claims.

What I claim is:

1. A mechanical movement comprising a gear Wheel, `a lever fulcrumed intermediate its ends with one end in engagement with the teeth of said gear Wheel, and' mechansm connected with the 'other end of said lever for moving it through a circle for correspondingly moving the first end of the lever and thereby imparting a step by step movement to the gear Wheel. y

2. A mechanical movement comprising a gear Wheel7 a lever fulcrumed intermediate its ends with one end in engagement with the teeth oi' said gear Wheel, and gear mechanism including a gear connected near its periphery to the other end of said lever for imparting a circular motion thereto and thereby causing the first end of said lever to impart a step by step movement to said gear Wheel.

3. A mechanical movement comprising a gear wheel, a plurality of levers each fulcrumed intermediate its ends with one end in engagement with the teeth of said gear Wheel, and means for simultaneously moving the other ends of said levers through circular paths adapted to actuate the first ends of the levers into successive engagement With the gear Wheel and thereby imparting a step by step movement to the latter.

4. An apparatus of the'character described comprising a gear Wheel, a lever provided with a fulcrum permitting universal movement of the lever, and means connected with one end ofsaid lever for operating the same to engage the other' end of the lever With the teeth of said Wheel Jfor imparting step by step movement thereto.

5. An apparatus of the character described comprising a gear Wheel, a lever provided with a fulcrum permitting universal movement oir' the lever, and an operating Wheel connected by a universal joint With one end of said lever for actuating the same to engage the other end of the lever With the teeth of said Wheel for imparting step by step movement thereto.

6. An apparatus oiPA the character de scribed comprising a gear Wheel, a pair of levers provided with fulcrums permitting universal movement of the levers, and operating Wheels separately connected by universal joints with said levers for actuating the same into successive engagement with the teeth of said gear Wheel to impart a step by step movement thereto.

7. An apparatus of the character described comprising a gear Wheel, a pair of substantially coplanar operating Wheels mounted on axes extending approximately radially With reference to said gear Wheel,

a lever connected With each of said operating wheels and actuated thereby into successive engagement with the teeth of said gear Wheel for imparting a step by step movement thereto, and means for simultaneously rotating said operating Wheels.

8. An apparatus of the character described comprising a gear Wheel, a pair oi operating Wheels mounted on axes extending in diferent approximately radial directions With reference to said gear Wheel, a lever connected with each of said operating Wheels and actuated thereby into successive engagement with the teeth of said gear Wheel for imparting a step by step movement thereto, and means for simultaneously rotating said operating Wheels.

9. An apparatus of the character described comprising a gear Wheel, a pair 0I" substantially coplanar operating Wheels mounted on axes extending approximately radially with reference to said gear Wheel, a second pair of substantially coplanar operating Wheels mounted on parallel axes extending approximately radially With reference to said gear Wheel but in different radial directions from said first axes, a lever f connected With each of said operating Wheels and actuated thereby into engagement with the teeth of said gear Wheel for imparting a step by step movement thereto, and means for simultaneously rotating said operating Wheels and causing said levers to travel through relatively diierent phases of circular movement into successive engagement With the gear Wheel.

l0. An apparatus of the character described comprising a gear Wheel, a pair of bevel gears mounted on axes extending radially with reference to said gear Wheel and a second pair of bevel gears mounted on parallel axes extending approximately radially with reference to said gear Wheel but in diierent radial directions from said firs-t axes, a lever connected With each of said bevel gears and actuated thereby into engagement With the teeth of said gear Wheel for imparting a step by step movement thereto, and a bevel gear Wheel in mesh with both pairs of said bevel gears for simultaneously rotating the same, said levers being connected and arranged to travel through relatively diierent phases of circular movement into successive engagement With said rst gear Wheel.

In Witness whereof I hereunto afx my signature.

JOHN C. VILLIAMS.

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