US448575A

US448575A - Half to robert atherton

Info

Publication number: US448575A
Authority: US
Publication date: 1891-03-17
Anticipated expiration: 1908-03-17

Description

(No Model.) 4 Sheets-Sheet" 1.

T. SGHEFFLER.

POWER TRANSMITTING DEVICE.

No. 448,575. Patented Mar. 17, 1891.

WITNESSES! I Mus i ATTORNEYS.

INVENTUR:

(No Model.) 4 Sheets-Sheet 2..

T. SGHEFPLER. POWER TRANSMITTING DEVICE.

No. 448,575. Patented Mar. 17, 1891.

' wnnassasy INVENTOB;

M M 1' v lf W315i- ATTORNEYS- (No Model.) 4 Sheets-She6t a.

T. SOHEPFLER. POWER TRANSMITTING DEVICE.

No. 448,575. Patented Mar. 17, 1891.

WITNESSES: INVENTOB.

6, D3 gawk M ywm W M mwh ATTORNEYS (N0 Model.) 4 Sheets-Sheet 4. T.SGH-EF FLE -R. POWER TRANSMITTING DEVICE. v

No. 448,575. Patented Mar. 17, 1891.

-- |NVENTUB 65m 3 ATTURNEYS.

io ivrrnn STATES PATENT Fries.

l THEODORE SOHEFFLEB, OF PATERSON, NEW JERSEY, ASSIGNOR OF ONE- HALF TO ROBERT A'IHERTON, OF SAME PLACE.

POWER-TRANSMITTING DEVICE.

SPEGIFIGATIONforming part of Letters Patent No. 448,575, dated March 1'7, 1891.

Application filed November 1, 1890. Serial No. 370,062. (No model.)

T0 on whom if may concern:

Be it known that I, THEODORE SCHEFFLER, a citizen of the United States, residing at Paterson, Passaic county, and State of New Jersey, have invented certain new and useful Improvements in Power-Transmitting Devices; 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, reference being had to the accompanying drawings, and to letters and figures of reference marked thereon, w iioh form a part of this specification.

This invention relates more especially to railway-cars operated by motors, hoisting-engines, and similar classes of machinery.

The object of the invention is to enable the power of a rapidly-revolving main. drivingshaft to be transmitted to another shaft re quiring reduced speed without the aid of gears or pulleys and without noise; to insure motion in the shaft having reduced speed in onlythe direction required, even if the motion of the main driving'shaft be reversed, and to provide a ready and reliable means for reversing the motion of the shaft having the reduced speed without the necessity of stopping the motion of the main driving-shaft.

The invention consists in the improved reversible clutches attached to a shaft revolving at less speed than the main shaft and the connections between said clutches and the main shaft.

It also consists in asystem of lever-connections with the clutches, whereby the clutches can be readily and quickly reversed, and also in the combination and arrangement of the various parts, all of which will be hereinafter more fully described, and finally embodied in the clauses of the claim.

Referring to the accompanying drawings, in which like letters and numerals of reference indicate corresponding parts in each of the several figures, Figure 1 is a top plan view of one-half of a railway-car truck embodying my invention, showing the connections between the main driving-shaft and the clutches on the car-axles, and also the lever-connections for reversing the clutches. Fig. 2 is a side view of the connections between the main ranged to turn in a direction opposite to that shown in Fig. 4. Fig. 6 is a section through line :c, Fig. t. Fig. 7 is a transverse vertical section through the clutch, and Fig. 8 is. a

section through line y, Fig. 4:.

In said drawings, A represents a portion of a car-truck frame in which are arranged axles B B, carrying wheels B" B between the axles, and preferably midway between them is arranged on the truck a main driving or motor shaft O.

Upon one or both ends of the shaft 0 are arranged eccentrics or cranks D, with outwardly-extending crank-pins E. On the outer end of these pins is secured in any desirable manner a collar or stop F. Upon these crankpins and inside the collar Rare pivoted connecting-rods G G, and to the outer ends of these rods are pivoted, by means of pins I ll, crank-arms H H, rigidly secured to clutches K K, loose on the axles B B. Lateral motion of these clutches is prevented by a pin or in any other desired manner, as shown in Figs. 4, 5, and 7.

On the axles B B are firmly secured roundshouldered plates L L, provided with annular grooves a a, adapted to receive the two parts I) b of a metallic ring. These parts I) b are each made of such length that when placed in the recess a there shall be sufficient space to receive one end of a clutch pin or bar 0, the otherend of said pin or bar resting in a slot cl in the outer periphery of the clutch K, as shown in Figs. 4 and 5. This slot d is made wide enough to receive on each side of thepin or barcsliding locking-pins e c, pivotally secured at one end to lever f, fulcrumed atf to a stop g, firmly secured to or made integral wit-h the clutch K, and so adjusted and arranged that when the clutch pin or bar 0 is in the position shownin Figs i and 5 iongitudinal motion of the pin will be prevented by the stop g, as will be manifest. The in side end of the clutch is provided with an annular shoulder h, with a slot corresponding to. slot cl. The locking-pins c e are made of such length that when they are respectively moved forward by the lever f, as shown in Figs. 4 and 5, they will engage with the side of the clutch pin or bar 0 and prevent the axle from turning forward when in the position shown in Fig. t or backward when in the position shown in Fig. 5.

Upon the under side of the floor of the car and extending longitudinally its en tire length is a rod 1, arranged to oscillate in bearings 2, secured to the floor 3, as shown in Fig. 3. To each end of the rod 1 is secured an operating-lever 4. To the shaft are secured, also, levers 5, arranged and adapted at their lower ends to be pivoted to short levers 5, attached to sliding bars (3, provided with elongated slots 7 7, in which are adjusted pins 8 8, on which the bar 6 slides. These pins are secured to blocks or studs 9 on the end of the truck-frame A.

The sliding bar U is constructed with arms 10 10, to the outer ends of which are pivoted connecting-rods 12 12, the other ends of said con1'1ecting-rods being pivotally connected to the lever f.

I have shown in the drawings my improvement as applied to an electric car, the motor being attached to the shaft 0 and connections made therefrom to both wheel-axles; but when desired connection can be made with only one wheel-axle; but the double connection is preferable, as there is more steadiness of motion and less liability to jerks than when only one wheel-axle is connected.

In hoisting-engines and similar machinery the connection is made from the main ordriving shaft directly to the drum-shaft carrying the hoisting-rope.

By the arrangement of the reversible clutches on the wheel-axle and their connections with the driving-shaft the wheel-axle can onlybe turned in the direction according to the situation of the locking-pins on the clutch, and a reversal of motion of the driving-shaft will not reverse the motion of the wheel-axles, such reversal of the wheel-axles being only obtained by reversing the clutch by means of the sliding pins, as above described. This arrangement of reversible clutches forms a perfect brake, as the car can be stopped very quickly, as by reversing the clutch when the car is in motion the wheelaxlc will at once stop and the wheels will all slide on the track. \Vhen the caris going up a grade, no backward motion can be had, even if the 1notor-power be stopped or disarranged.

The operation of the clutching mechanism is as follows: When the sliding pins are in the position shown in Fig. 5, the clutch-pin 0 lies evenly on the sliding pin a and has a uniform bearing thereon, and as there is no binding or straining on the ring the plate L can freely turn on the ring in a forward direction only; but if the wheelis started backward the slidingpin 6' will catch on the outer end of the clutch-pin, as shown in Fig. 5, and cant the clutch-pin c, causing it to bind the ring firmly to the side of the annular groove on and prevent any backward movements of the wheel-axle. When power is applied to the main driving-shaft, it is transmitted to reversible clutches on a receiving-shaft by means of lever-connections and at a reduced rate of speed. The crank-arms secured to the loose clutches on the shaft should be so arranged that when one crank-arm is moving its clutch to its extreme limit in one direction the other crank-arm is moving its clutch in the opposite direction.

Having thus described my invention, what I claim as new, and desire to secure by Let ters Patent, is

1. An improved power-transmitting device, as herein described, consisting of a main driving-shaft, crank on said shaft, a receivingshaft, a reversible segmental-ring frictionclutch on said receiving-shaft, a crank-arm secured to said clutch, and a rod connecting said crank-arm and the crank on the main shaft, all said parts being constructed and adapted to operate as described, and for the purposes set forth.

2. In apower-transmitting device, a reversible segmental-ring friction-clutch on the receiving-shaft, a crank-arm secured to said clutch, and means for connecting said crankarm with the main driving-shaft, as described, and for the purposes set forth.

3. A reversible clutch, as herein described, consisting of a plate or disk provided with an annular groove and adapted to be secured to a shaft, segmental portions of a ring fitting in said groove and forming less than a complete circle, a clutch pin or bar, one end of which is adapted to lit in said groove, a loose clutch portion on said shaft provided with a bearing for the other end of said clutch bar or pin, a stop on said clutch portion holding said bar in position, a lever pivoted to said clutch portion, and sliding pins pivoted to said lever and adapted to be reciprocated in opposite directions, all said parts being adapted to operate as described, and for the purposes set forth.

4. In a clutch, a reversible segmental-ring mechanism consisting of a clutch-pin adapted to hold in position the segmental ring, alternately-sliding pins pivoted to a lever, and means for operating said lever from adistance, all said parts being arranged and adapted to operate as described, and for the purposes set forth.

In testimony that I claim the foregoing I have hereunto set my hand this th day of October, 1890.

THEODORE SOIIE FFLER.

Witnesses:

ALFRED A. VAN HovENBERc, E. L. SHERMAN.