USRE11961E - Means for driving dynamos from car-axles - Google Patents

Description

No. Il,96l. Risszied 1an. 2l, |902.

.L L'; cnEvELmQ. MEANS FR DRWINQ DYNAHUS FHD# CAR AXLES.'

2 Sheen-Shut l` il l. i g.. i :if E' I I iiiiiiiiimii iiiiiiiimii Heimen mn. 2|, :902. .1. L. cREvELme.

MEANS FR DBWING UYNAIOS FROM CAR AXLES.

(Application Mad Sept. 28, 1901.)

2 Sheets-Sheet 2` UNITED y vSTATES PATENT OFFICE.

Jol-1N L. oREvELINe, oF NEW YORK, N. Y., AssIGNoR To THE SAFETY CAE HEATING AND LIGHTING COMPANY, A CORPGRATIN OF NEWV JERSEY.

MEANS Foa DRlvlNeoYNAMos FROM clR-AxLEs SPECIFICATION forming part of Reissued Letters Patent N o. 1 1 ,961, January 21, 1902. Original No. 637,766, datedNovemher 28. 1899'. Application for reissue led September 23, 1901. Serial No. '76,3-20.

To LZ-Z whom, it 7a2/(ty concern.-

Be it known that I, JOHN L. CRE'VELING, of New York, in the county of New York, State of New York, have invented certain new and useful Improvements in Means for Driving Dynamos Placed Upon Car-Trucks by Power Taken from the Axles, of which the following is a complete specification, reference. being had to the accompanying drawings.

The object of my invention is to provide means for driving a dynamo by power from a car-axle in the use of which the mechanism is practically operative under all conditions, and the armature-shaft of the dynamo extends endwise of the car, making it possible to draw ont the armature, if necessary, without taking down the dynamo or removing the truck from under the car.

My invention belongs to that class ol apparatus in which a belt is employed to communicate power from the axle to the armature-shaft; and it consists, in part, in providing means for utilizing an endless belt without having it pass around the car-axle, `:vhereby the employment -of a splice in the belt is avoided.

My invention is also designed to avoid the use of a pole-changer in circuit with the dynamo b y compelling, through the employment of a single belt, the rotation of the armature in the same direction regardless of the direction of rotation of the car-axle.

In the accompanying drawings, Figure I is a sectional view of a portion of a oar-truck, illustrating a dynamo and mechanislm for operatively uniting it to the axle. Fig. II is a. top plan view of a portion of a car-i ruck, illustrative of the subject-matter shown in Fig. I.

Fig.III is a View similar to Fig. I, showing means for causing, in connection with a single belt, the rotation ofthe armature in one direction regardless of the direction of rotation of the axle. Fig. IV is a top plan View of a portion of the subject-matter of Fig. III.

Referring to the gures on the drawings, l represents a car-truck, 2 a pair of wheels, yand 3 an axle which carries them. The car-truck f and its axle may be of any ordinary or suiti- 4"Table variety and are illustrated only as 4one .5

of the many types of truck to which my machine is applicable.

4 indicates a dynamo whose armaturelshaft The dy.Y

example, in a box 7 at thel end of the carf truck. Secured to the end of the armatureshait 5 I provide a slieave 8 and preferably opposite lo it an idler 9, which being carried upon a stud 10, projecting from a slotted frame ll that is secu red to a bracket-support 12, as by bolts 13, working in yits slot, is'adapted to be actuated bya spring 14, set between frame 11, respectively. The idler 9, although delined as carried upon a stud 10, is essentially only separated from lthe sheave 8 and Vangle-arms l5 and 1G on the bracket 12 and i its shaft and 'may be mounted in any way which will provide `a clear space between those two parts for the passage of the belt.

17 indicates an abutment-screw for regulating the stress of the spring 14.

An endless belt 18, passing around the sheave S and idler Si, respectively, derives power from the axle 3 through intermediate sheaves secured to the axle. In the form of embodiment of my invention illustrated in Figs. I and Il, 19 indicates one of said driv ing-slieaves,which is splitand ixedlyclamped u pona split bushing 2O around the axle, so as to revolve with the axle and to transmit power from it. Oneb'end of the belt 18 works in the sheave 19, while the opposite bend thereof works in a loose sheave 2l, revolving upon the bushing 20, as between rings 22, secured to the bushing. Y.

From the foregoing description'it will appear that the belt 18 may be applied in practiceto the sheaves 8, 9, 19, and 2l without the necessityrof passing it around the caraxle.. Consequently the belt may be applied without taking the wheels from thetruck. This atlord's facility for applying or replacing the belt. Moreover, the belt may`be made without a splice or joint, which in a belt traveling at a. high rate of speed over small pulleys it is` important to avoid. The belt, as illustrated, is a round belt,whichmay be made of wire, manila rope, or leather; but a. dat

helt'may be substituted for the round belt, if preferred..

It maytbe observed that through the employment of the arrangement of sheaves illustratcd and the endless belt through which they are op'eratively united a good arc of-contact both with the armature-sheave 8 and the driving-shears 19 is secured. The extent of the arc of contact may be augmented by locating thev idler 9 on the same side of the axle 3 as the sheave 8 instead of upon the opposite side. t

In Figs. III and 1V, I illustrateas carried by the axle 3 sheaves 23 and 24, suitably mounted, as upon a sleeve 25, with an intermediate spacing-ring 26. VThrough the aid, for example, of suitable pawl--aud-ratchet mechanism 27 and 2S, provided upon there- `speetive sheaves and the sleeve 25,each sheave is adapted to be driven by the rotation of the axle in one direction and to revolve loose upon it in the other direction, the sheaves being adapted to be driven, respectively, by the V rotation of -the axle in the opposite directions.

By this means the armature-shaft 5 is always rotated in the same direction regardless of the direction of the rotation of the car-axle,

thereby avoidingl the necessity of the use of a pole-changer in circuit with the dynamo.

In practice the pawls illustrated irt Figs. III

' and IV are preferably made quite heavy, so

that when the axle is revolving at considerable speed centrifugal force will cause the one not engaged to stand clear of its ratchet, thereby avoiding unnecessary'noise and wear.

It is not myintention to limit myself to the details of construction hereinbefore illustrated and described. The elements illustrated in the drawings and referred toin the specication-are selected as well adapted for vthe purpose of driving a dynamoby power taken from a car-axle through the employment of a single endless belt.

The employment of a single endless belt for the purpose of transmitting power is a -main feature of my invention, to which the special means described for operatively applyin g the belt is subordinate, and the means of applying the belt may be widely varied in practice within the scope of my invention;

Zhat I claim is- 1. The combination with a truck and'rotatory axle, of a fixed and movable sheave upon sheave upon the armature-shaft, a stud-sup.-

ported idler, and an endless belt passing from the armature-sheave to the idler against thev axle-sheaves, and in `operative contact with Veach sheave, substantially as set forth.

' 3. The combination with a truck and rotay tory axle, of a fixed and movable sheave upon the axle, a dynamo whose armature-shaft is provided with a fixed sheave located upon one side of the axle-sheave, a spring-actuated idler pivotally supported upon one side only, and an endless belt passing'from the armature-shaft to the idleragainst the axle-sheaves,

and in operative contact with each sheave,

substantially as set forth.

j 4. The combination of `a truck and a rotating member deriving its rotary motion from the movement of the truck, a suitablysup ported dynamo traveling with the truck and a single belt transmitting power from the rotating member to the armature-shaft and an idler coperating with the said belt all arranged so that an endless belt may be directly applied to the apparatus without the necessity of opening or splicing the belt, to eEect such application.

5. The combination of a dynamo, a rotating member deriving its movement of rotation from the motion Vof the ca'r, an idler supported at one side only and a single belt for imparting motion from the rotating member tothe dynamo-shaft andthe idler.

6. The combination of a truck, a rotary driving-gear deriving its motion of rotation from the movement of the truck, a pulley driving a dynamo, a'single endlessv belt engaging the driving means and pulley, and an additional belt-engaging means so mounted and arranged'that the endless belt may be passed thereover and engaged with the pulley and driving-gear in position for operation.

7. The combination of a truck, a rotating member driven by the movement of the truck n Y and comprising in its structure a plurality of pulleys, a dynamo, a pulley adapted to drive the said dynamo and an idler, the dynamodriving pulley being unsupported at one side and the idler being also unsupported at one side whereby ay single endless driving-belt may be passed around the fo'ur pulleys without the necessity of splicing` the `llelt.

'8. The combination of a truck, a dynamo supported to travel with the truck, a shaft receiving its rotary lmotion by the movement of the truck, a pulley receiving motion from the said shaft and driving the dymano and means whereby a single, endless driving-belt x Ilo may be placed about the shaft and around the Y pulley.

` 9. In a driving-gear for dynamos, the combination of a shaft having a plurality of pulleys in driving relation therewith, a plurality of separate pulleys vsupported from one side only of each pulley, and a single endless belt'

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