US729824A - Power-transmitting device. - Google Patents

Description

y PATENTED JUNB-2,1903. E. D. WEYBURN.

POWER TRANSMITTING DEVICE.

\ APPLIoATloN FILED MAY 14. 1902.

No MODEL.

Ell

Darren STATES Patented June 19'.

PATENT OFFICE.

ELBERT D. WEYBURN, OF COI-IOES, NEV YORK, ASSIGNOR TO WEYBURN MACHINE COMPANY, OF NEW YORK, Y., A CORPORATION OF NE\V YORK.

POWER- TRANSMITTING DEVICE.

SPECIFICATION forming part of Letters Patent No. 729,824, dated June 2, 1903.

Application `tiled May 14, 1902.

.To 1r/ZZ wiz/om, it may concern,.-

Be it known that L'ELBERT D. WEYBURN, a citizen of the United States of America, and a resident of Cohoes, in the county of Albany and State of New York, have invented certain new and useful Improvements in Power- Transmitting Devices, of which the following is a specification.

My invention relates to improvements in devices for transmitting power to stationary or traveling swinging varms and the driving mechanism used to propel a pliable or ilexible shaft used to transmit power to the cutter or other tool.

The object of myinvention is to improve machines described and illustrated in United States Patents Nos. 442,664 and 481,988 and to so construct the improved device as to make it capable of use where the two named inventions have been found inapplicable because they are useful only where motors andelectrical power are obtainable.

My present improvement can be .used in any workshop or factory where power can be obtained from any driving-shaftgand the in;- vention therefore consists in the peculiar construction, arrangement, and combination of parts, as hereinafter more particularly described and then definitely claimed.

In the accompanying drawings, Figure l illustrates a side elevation of my improved device. Fig. 2 isa vertical central section through thedevice for connecting the transmitting-pulley to the flexible shaft. Fig. 3 is a perspective view of the counterbalanced pivoted frame hereinafter described in detail. Fig. 4 is a plan view of a portionof the sameA Fig. 5 is a detail of one ofthe pulleyhangers.

Serial No. 107,311. (No model i shifter E; but as this is common and my invention does not reside therein no further description thereof is necessary, The righthand support b has a downward tubular extension F, through which passes a'shaft G, on which the aforesaid pulleys D and D are carried. O-n the lower end of this tubular extension is secured a pair of collars H and H', between which is supported on ball-'bearings a rotatable collar I. This collar I affords a means of supporting an arm or frame K,which is formed with a frame-like center lt, (shown in Figs. 3 and 4,) and Athis part 7c is pivoted on the collar I by means of the pivots 7c', so that the arm K and its frame 7c are capable of a slight pivotal movement on the pivots k', and as the collar Iis rotatable the whole device is also capable of rotating for the purpose hereinafter described.

At one end of the arln K is secured an adjustable counterbalancing-weight L, and at the other end is secured a pulley-hanger M, in which is carried a pulley N on the shaft N'. `Secured to this pulley-hanger M is another pulley-hanger O, which is rotatable with reference to the hanger M and supports a pulley P on the lower end of the shaft N', which extends therethrough. This last pulleyhanger O has secured to it a frame Q, which in turn supports a third pulleyhanger R, in which is carried apulley S on a shaft S. A belt T connects a pulley Gr on the lower end of shaft G-with the aforesaid pulley M, and a belt T connects the pulley fP with the pulley` S, and therefore power is transmitted froin the driving-pulley C by means of the belt cand pulleys D and D to the `pulleys just mentioned. 1

I have found in the operation of flexible driving-shafts, especially of the form shown in my drawings, that considerable trouble is caused by the tendency of a shaft to buckle, and thereby either stop running or wear through its casing. If thenilexible shaft is kept stretched or taut, the danger of buckling is overcome, and I accomplish this purpose by the following device -The aforesaid pulley S is splined. on the vertical shaft S', so that said shaft is capable of a vertical move ment in said pulley S, and as the flexible shaft U is connected to this shaft S any movement imparted to the latter is necessarilyl transmitted to the flexible shaft. On the top of this shaft S, I secure a hollow grease-cup V, which is provided With a flange V', and between this flange V and the frame Qis set a stiff coiled spring W, which tends to force the grease-cup V upward, and thereby retain the flexible shaft U sufficiently taut to prevent the latter from buckling. The aforesaid grease-cup V is provided with an adjustable cap V, so that the pasty grease which may be contained therein is forced down through the channel s in the shaft S' and out through the lateral openings s, so as vto lubricate the vshaft S as it rotates in the pulley-hanger R. It follows from this construction that Whenever it is necessary to lubricate the shaft the attendant can turn the compression-cap V, and sufficient grease will be forced down through the channel s' to lubricate the shaft S'. This enables the attendant to control the amount of lubricant, so that it is impossible when pasty lubricant is used for it to trickle or run down the flexible shaft and onto the goods being cut.

The operation of my device is believed to be sufficiently clear to enable those skilled in the art to understand it, and it will therefore suffice to state that power can be transmitted from the shaft C to the flexible shaft U and from the shaft U to the cutter shown at the lower end of said shaft and that the flexible shaft can be held in a nearly-vertical position at almost all times, as the pulley-hangers are so constructed as to allow a complete rotary movement of the hangerN around the shaft G and also a complete rotary movement of the hanger R around the shaft N. This construction will be found very advantageous in use, as will be evident from an inspection of the drawings.

It is obvious that changes and modifications may be made in my invention without departing from the essential features thereof, and I therefore intend the following claims to cover such variations as may naturally be made by one skilled in the art.

What I claim as new isl. An apparatus for they purpose described comprising a suspended overhauging transmitting device, a shaft havinga driving-pulley thereon, an arm or frame pivoted on said shaft and also capable of complete rotation thereon, a pulley carried by said arm or frame for transmittingmotion, and a belt connecting said pulleys, substantially as described.

2. An apparatus for the purpose'described comprising a shaft having a pulley for transmitting power, a counterbalanced arm pivotally mounted with respect to said shaft and pulley and capable of rotation around them, a second pulley` carried by said frame-like arm, and a belt connecting said pulleys, substantially as described.

3. An apparatus for the purpose described comprising a suitably-supported overhanging transmitting device, a shaft having a pulley foi-transmitting power, a tilting rotatable arm mounted adjacent to said shaft, a pulley carried by said tilting arm for transmitting motion, and a belt connecting said pulleys, substantially as described.

4. An apparatus for the purpose described, comprising a rotatable shaft, a rotatable arm or frame supported in proximity to andarranged to rotate around said shaft, a second arm or frame carried by the aforesaid arm or frame and capable of complete rotation thereon, pulleys on said shaft and arms or frames for transmitting motion and belts connecting said pulleys, substantially as described.

5. An apparatus for the purpose described comprising an overhanging transmitting de- Vice, a pulley carried thereby, a flexible shaft for transmitting motion from such pulley, and a tension-spring acting longitudinally to said shaft and keeping the same taut, substantially as described.

6. An apparatus for the purpose described comprising a suitably-supported pulley, a flexible shaft for transmitting motion therefrom, a spring arranged to hold said shaftin proper working position, and a collar coperating with said spring and having means for holding lubricant, substantially as described.

7. An apparatus for the purpose described comprising a suitably-supported pulley, a shaft passing through said pulley and having a exible shaft on one end and a collar on the opposite end having a receptacle for containing lubricant, and a spring coacting with said collar to hold said flexible shaft taut, substantially as described.

Signed by me at Cohoes, New York, this 13th day of May, 1902.

ELBERT D. WEYBURN.

Witnesses:

T. FRANK KENNEDY, EARL F. WHITE.

IOO

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