US549118A

US549118A - Motor for operating fans

Info

Publication number: US549118A
Authority: US
Publication date: 1895-11-05
Anticipated expiration: 1912-11-05

Description

' (No Model.)

J. J. FAULKNER.

. F G m T A R E P nU R 0 F R 0 T 0 M Patented Nov. 5, 1895.

www? A 3 Sheets-Sheet 2.

(No Model.)

J. J. PAULKNER. MOTOR POR OPERATING FANS, O0.

:Patented Nov. 5, 1895.

AN BREW BOGRANAM. PHOTO LITHQWSH ING'ION. D C

(No M5551.)

J. J. FAULKN-ER. MOTOR-FOR OPLRTIN'G FANS, &`c. W

3 sheets-s115553;

f 115.549.118. Patented Nov. 5, 1895.

UNITED STATESV PATENT OFFICE,

JAMES JONES FAULKNER, OF MEMPHIS, TENNESSEE, ASSIGNOR OF ON'E- I'IALE TO E. J. FITZHARRIS, OF SAGINAW, MICHIGAN.

MOTOR FOR OPERATING FANS, am.

SPECIFICATION forming part of Letters Patent No. 549,118, dated November 5, 1895. v

Application filed February 18, 1895. Serial No.538,739. (No model.)

To a/ZZ whom t may concern:

Be it known that I, JAMES JONES FAULK- NER, a citizen of the United States, residing at Memphis, in the county of Shelby and State of Tennessee, have invented certain new and useful Improvements in Motors for Operating Fans, rc. and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to motors especially designed for operating household devicessuoli as fans, hammocks, cradles, and the like; and it consists in an improved hydraulic motor by the action of which a positive rotary motion is given to the driving or power shaft, the construction and arrangement of the parts of which will be hereinafter fully described, and particularly pointed out in the claims.

My present invention belongs to the same general type of hydraulic motors as that described in my application for Letters Patent for improvements in motors filed December 12, 1894, Serial No. 531,566. In said application I described a hydraulic motor whose special novelty consisted in the means employed to operate the valve used to control the cylinder-ports. To one end of the pistonrod of the motor described in said application was attached a rack-bar which geared with a gear-wheel upon the power-shaft and gave an intermittent rotary motion to the same, which motion was transmitted through suitable means shown to the fans or other objects acted upon. To this piston-rod was also attached a rod which was intimately connected with the valve-rod which extended rearward from the balanced valve and was the means of actuating the same, and thu-s causing the proper and continuous operation of the motor. This means of actuating the valve was, as before stated, the chief point of novelty of the motor described in the abovementioned application. The motor which I described in said application was only capable of giving an intermittent or reversed rotary motion to the power-shaft. is desirable for the actuation of certain classes of fans and for certain styles and kinds of y lVhile this household devices, for other purposes, and in general for the transmission of power, itis necessary that the power-shaft should have a continuous rotary motion. In devising the motor which forms the subject-mattei' of this application I have, therefore, while adopting the same valve mechanism as that shown in my former application, and using, though in a somewhat modified form, the same trip mechani sm, provided means whereby the intermittent reciprocatory movement of the pistonrod is transformed v into a positive rotary movement of the power-shaft.

The means which I employ to obtain the above-mentioned result may be brieiy described' as follows: To one end of the pistonrod I secure a staggered double yoke, on both the inner faces of which are formed gear-teeth. The power-shaft is so journaled as to run transversely of the yoke, and upon this powershaft are mounted gear-wheels which mesh with the two rack-surfaces of the double yoke land are so secured to the power-shaft as to cause the same to have a positive rotary movement by their actionr As I design my present motor especially forhousehold devices, it is important that noise be avoided in its operation. To avoid noise and lost motion, I secure the gear-wheels to the powershaft by means of springs and rollers, which are placed in inclined slots cut around the central aperture, through which the powershaft passes and which serve to cause each gear-wheel to exert power when moving in one direction, but to move idly upon the shaft when moving in the other direction. As the two gear-wheels are so arranged that they both act to rotate the shaft in the-same direction, but are operated to transmit power by reverse movements of the double yoke, the continuous rotary motion of the power-shaft above stated is obtained. I avoid any hesitancy in movement of the power-wheel by reason of the manner in which the shaft on which it is mounted is rotated by securing-the said wheel to the said shaft by a spring connection, thus overcoming any uncertainties of movement which might otherwise be present.

My invention is fully represented in the drawings which accompany and form a part of my application, in which the same refer- IOO ence-numerals refer to the same .or corresponding parts, and in which- Figure 1 is a perspective view of my improved motor. Fig. 2 is a central section of the same, showing the cylinder, piston, valvegear, staggered double yoke, the gears by which the piston transmits its motion, and the trip mechanism by which the valve is operated through the movement of the piston-rod. In this figure the valve is shown at the eXtreme right end of its movement. Fig. 3 is a similar view, the position of the piston and main cylinder differing from that shown in Fig. 1, owing to the fact that water had been admitted to the cylinder and has forced the piston to near the extreme end of its stroke. The end of its stroke has not been reached as yet, however, and the balanced valve has not been shot by the mechanism operated by the piston. Fig. 4 is a similar view, the piston having reached the extreme limit of its movement and now occupying the end of the cylinder opposite of that in which it is shown in Fig. 2, the valve having been shot and the piston being about to be reciprocated backward. of the valve-chamber, showing the exhaustchamber in its relation to the main valvechamber. Fig. (i is a detail front view of the balanced valve. Fig. 7 is a transverse section of the power-shaft and the mechanism used to convey the motion of the double yoke to said shaft. Fig. 8 is a front view of one of the gear-wheels, showing the inclined slots cut in the same around the central aperture, through which the power-shaft passes, and also showing in position the springs and rollers which serve to connect said wheel to said shaft. This view is taken on the opposite side of the staggered yoke from that shown in Figs. 2, 3, and 4. Fig. 9 is a back view of the upright support which serves as a bearing for the double yoke and is intended to particularly show the manner in which the two portions of said yoke are guided in their movement.

Referring to the drawings, 1 represents the base of my motor. Screw-holes 1 are formed in this base, by means of which the motor can be screwed to a wall or in any other convenient position, so as to be readily connected to the source of water-supply. Upon this base-frame is mounted the cylinder 2, within which moves the piston 3, to which is attached the piston-rod 4. To the outer end of the piston-rod is attached the staggered double yoke 5, which meshes with gear-wheels G and 6, mounted upon the power-shaft 7, and thus transmits t-he power caused by the reciprocation of the piston-rod to the said shaft 7.

On the top of the cylinder 2 is mounted a valve-chamber 8, provided with an exhaustchamber 9. In the valve-chamber reciprocates the balanced valve 10. (Shown in front view in Fig. 6.) To this valve is attached the valve-rod 11, which has an outer bearing Fig. 5 is a sectional view in the projecting standard 12, (which standard is integral with the base 1,) and upon which is located the various springs and collars by which, in a manner hereinafter to be described, the valve is caused to be shot at the proper moment, and thus fuliill its function.

At both ends of the cylinder 2 are formed ports 13, which are in communication through suitable passage-ways with ports 14, formed in the valve-chamber. It is through these

ports

13 and 14 that water is alternately admitted to and exhausted from the cylinder. Egress-ports 15, formed in the valve-chamber, permit the escape of the water to the exhaustchamber 9, and thence out by delivery-pipe 1G. The water-ingress pipe is represented at 17 and may be directly connected, as shown in Fig. 1, to the faucet 18 of the water-supply, thus arranging for the complete automatic operation of the motor.

1 will now proceed to describe in full the construction and operation of the balanced valve. This valve is best shown in Figs. 2, 3, and 4, and consists of a hollow casing having two heads 19,which iit snugly to the sides of the valve-chamber, and a centrally-reduced portion 20, which permits the inflowing water to reach the inlet-ports, so that it can operate the piston. Through the hollow interior of the valve passes the valve-rod 11, and in each end of the hollowed ends of the valve there is held by the rod 11 over the central orifice into the valve an angled plate 21,which obstructs, but does not entirely close, the said hollowed interior of the valve. Through the small openings thus formed in the ends of the valve the water passes at the end of the valve-strokes and thus cushions the valve, preventing the shock and noise which would otherwise be attendant to its movement.

ln Fig. 2 the piston is shown at the extreme right end of its movement, water iiowing in through the inlet-pipe 17 and through

ports

14 and 13 to the right of the piston, so as to force it through the cylinder, which we may suppose to be filled with water. The water already in the cylinder will be forced out, as the piston advances, through the

ports

13 and 14 at the left end of the valve-chamber through the egress-port 15, an d thence through the exhaust-chamber 9 to the outlet-pipe and away from the motor. The water-power will be sufiicient to move the piston to the extreme end of its stroke; but it is necessary to provide for the shooting of the valve when it has reached its extreme stroke, so that its backward movement may be possible. It is obvious also that the means used to shoot the valve must be brought into operation when the extreme limit of the piston-stroke has about been reached and not before.

On valve-rod 11 are loosely mounted spiral springs 22 and 23, the said springs being on opposite sides of the casting 24, which projects upward from the forward end of the staggered yoke 5 and encircles with its 'up- IOO ITO

per end the said valve-rod, serving in itsoperation to compress springs 22 and23 'alternately. The projections 26, which are formed at suitable places on the top surface of the staggered yoke 5 act in a manner hereinafter to be described to trip the weighted dogs 27, which are journaled upon a pin projecting from the standard l2, but on opposite sides of said standard, and normally rest their upper ends against the valve-rod. Upon the valve-rod ll are also keyed the

collars

28, 29 and 30, which when properly set give the proper movement to the balanced valve. Comparing now closely Figs. 2, 3, and 4, in Fig. 2 we see that the piston is at the eX- treme right end of its movement and that the spring 22 has forced the valve ll to the eX- treme right end of its movement, the left dog 27 being forced upward and away from the valve-rod by the left coned collar 26, but the upper end of the right dog 27 resting against the valve-rod. As the water admitted to the cylinder forces the piston to the left, the upright casting 24 and the parts connected therewith are alike forced to the left, since they are rigidly connected with the piston. In Fig. 3 we see, therefore, that the head of the upright casting 24 is exerting a pressure against the spring 22,.said spring being confined and held from movement by the nut 28. The valve-rod ll is prevented from movement by the dog 27 engaging with the nut 30, and thus the valve is still held in the same position that it was in Fig. 2. As the piston moves still farther forward, the right-hand coned collar 26 will lift the right dog 27 until, as shown in Fig. 4, when the eXtreme end of the stroke is reached, said dog is lifted and removed from engagement with the collar 30, and the spring 22, pressing against nut 28, is now allowed to be relieved and to shoot the valve, which it has done in Fig. 4, the parts being' now in just the reverse position from that shown in Fig. 2. The movement of the balanced valve is quite sharp; but shock and noise are prevented by the water being allowed to pass through the openings formed by the angled plate 2l into the interior of the valve, and thus communicating the pressure to the other end of the valve-chamber. Having thus followed the movement of the piston from one end of the cylinder to the other, it is easy to be understood how the` same movement takes place in its backward movement, except that the movements detailed are reversed, and how the spring 23 is compressed against the nut 29 until the left coned collar 26 raises the left dog 27 and allows the valve to be shot backward when the parts are in the position shown in Fig. 2. It will thus be seen that' the means which I have devised for operating the balanced valve are entirely automatic in their operation, are simple in construction, durable, and are not easily gotten out of order. The motor can operate for an indeinite length of time with no attention, and can be started or stopped by turning on or olf the water. No care or attention whatever is needed to operate the motor, and its construction is such as to permit it, by suitable nickeling, to be attractive and ornamental in appearance.

Thus far the mechanism which has been described is almost identical with the corresponding mechanism described in my previous application above referred to, the only difference being in the manner of tripping' the dogs 27. The means which I have used to transmit the power of the piston to the power-shaft and to transform the reciprocatory movement naturally imparted by the piston to a rotary movement depart entirely, however, from the construction shown in my former application, and will now be described.

I have stated that to one end of the pistonrod 4 is attached the staggered yoke 5. This yoke is guided in its reciprocation by the upright standard l2, slots l2 being cut on opposite sides of the same to accommodate the movement of the upper and lower portions of the yoke. The inner surfaces of both portions of the yoke are formed with gear-teeth, so that in effect the staggered yoke consists of two rack-bars 3l and 3l. Vith these rackbars mesh the gear-wheels 6 and 6', both of which are mounted upon the'shaft 7, which extends transversely of the double yoke. The gear-wheels are held in proper relation to the racks with which they respectively mesh by means of the circular disk or plate 32, which is placed between them, and has bearingsurfaces against the sides of both the top and bottom portion of said rack. Each of these gear-wheels meshes with only one of the two racks formed on the double yoke, and each is so connected with the power-shaft as to impart motion to the same when moving in one direction,bnt to move idly upon the same when moving inthe other direction. As the rotative impulse exerted by both gear-wheels is in the same direction, a positive rotary motion of the power-shaft results.

The connection of the gear-wheels to the shaft is best illustrated in Fig. 8, where one of the gear-wheels is shown in face view. shown in said ligure, around the central aperture,through which the power-shaft passes, are cut a number-in this instance threeof inclined slots 33, in each of which is placed a roller 34 and a spring 35. If the action of a gear-wheel upon the power-shaft be considered, it will be seen that when the gear-wheel is caused to rotate clockwise the rollers will be pressed between the downward sloping surface of the slots and the shaft, and will thus give a tight connection between the shaft and gear wheel, which will necessitate a movement of the shaft corresponding with the movement of the gear-wheel; but if the movement of the gear-wheel be anticlockwise the rollers will tend to be forced into the large or square end of the slot against the action of the cupped springs 35 and in this IOO IIO

instance can exercise no power impulse. The wheel will, therefore, move idly upon the shaft.

\Vhen the motor is viewed from theside shown in Figs. 2, 3, and et, the action of the roller and springs will of course be opposite to that just stated, the shaft being gripped and rotated when the movement of the gearwheel 6 is anticlockwise and released when the movement of said gear-wheelis clockwise.

In placing the gear-wheels upon the shaft the slots of the two gear-wheels are made to incline in the same direction-that is to say, the square or abrupt ends of the slots of the wheels coincide in posit-ion with each other, and also the inclined portions of said slots. If now it be considered that one of the gearwheels is actuated by the lower rack-bar and the other gear-wheel is actuated by the upper rack-bar and that the wheels move independently of each other, it will be seen that they both exert a rotary movement in the same direction and that while one of them is actuated to transmit power as the pistonrod moves backward the other moves idly upon the shaft during such movement, and that this other gear serves to transmit power to the shaft during the forward reciprocation of the piston-rod, while the first-mentioned gear-wheel moves idly upon the shaft. In this manner a positive rotary movement is given to the power-shaft. This manner of connecting the gearwheels to the shaft possesses the great advantage of being noiseless in its operation and of avoidin g all lost motion.

It is possible that in the movement of the power-shaft there may occur slight irregularities, and to prevent any such being transmitted to the power-wheel, if there be any such, I mount said wheel upon said shaft loosely and connect the wheel to the shaft by means of the shaft i0, which engages with the luOs il, formed on the power-wheel, and causes the movement of the same. All irregularities of movement of the powershaft are hereby overcome and obviated in their transmission to the power-wheel.

I do not restrict myself to this manner of .carrying the power, as I may translnit the power through a flexible shaft or in any other manner.

It will be seen that the motor which I have herein described is adapted not only to transmit power for operating rotary fans and the like, but for general power purposes, and I do not restrict myself to any one use, hor do I retrict myself to the unessential details of construction shown; but ,t

That I claim as new, and desire to secure by Letters Patent, is-

l. In a motor for operating fans, zc., the combination with a cylinder, and a suitably operated valve therefor, of a piston, a piston rod having attached to one end a staggered double yoke having racks formed on both its inner faces, a power shaft extending transversely of said yoke, gear-wheels meshing with said racks and so mounted upon said shaft as to impart a continuous rotary movement to the same, means mounted on said gear-wheels for automatically gripping the shaft in accordance with the direction of the movement of the staggered yoke, and an independent circular disk mounted on the power shaft between said gear-wheels, and having a bearing surface with its periphery against the inner faces of both the top and bottom portions of the staggered yoke, substantially as described.

2. In a motor for operating fans, the., the combination with a cylinder, and a suitably operated valve therefor, of a piston, a piston rod having attached to one end a staggered double yoke having racks formed on both its inner faces, a power shaft extending transversely of said yoke, gear-wheels, having' inclined slots cut around the central apertures formed therein, mounted upon said shaft and meshing with said racks, rollers 34e and springs 35 placed in said slots to hold the gear-wheels to the shaft and to cause them to impart a continuous rotary movement to the same, and a circular disk mounted on the power shaft between said gear-wheels, and having a bearing surface with its periphery against the inner faces of both the top and bottom portions of the staggered yoke, substantially as described.

In a motor for operating fans, the., the combination with a cylinder, and a suitable valve therefor, of a piston, a piston rod having attached to one end a double toothed yoke, a power shaft extending transversely of said yoke, gear-wheels meshing with said double yoke and so attached to said shaft as to impart a continuous rotary movement to the same, a power wheel mounted on said shaft, and a spring IO passed through a hole in said shaft, and having both its ends bent backward so as to be parallel with each other, for connecting said wheel to said shaft, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

JAMES JONES FAULKNER.

\Vitnesses:

C. L. BERLIN, B. W. OAPrs.

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