US1034279A - Automatic belt guide and thrower. - Google Patents

Description

I J. H; MUNSON. I AUTOMATIC BELT GUIDE AND THROWER.

APPILIIOA'TION FILED MAR. 13', 1911. Patented July 30, 1912' 3 SHEETS-SHEET 1 J. H. MUNSON.

' AUTOMATIC BELT GUIDE AND THROWER.

APPLICATION I ILED MAIL-13, 1911.

Patented July 30, 1912.

3 SHEBTS-SHEET 2.

' J. H. MUNSON. AUTOMATIC BELT GUIDE AND THROWER.

APPLIUATIOH FILEDMAR, 13, 19 11.

(W I a f r NITED STATES PATENT OFFICE? JOHN H. MUNSON, OF LAKE PARK, MINNESOTA.

AUTOMATIC BELT GUIDE AND THROWER.

To all whom, it may concern Be it known that I, JoHN H. .MuNsoN, a citizen of the United States, residing at Lake Park, in the county of Becker and My invention has for its object to provide an improved belt guide and belt shifting device adapted for general use, but especially.

aiilapted for use in connection with traction engines, and to the above ends, the invention consists of the novel 'devicesand combmations of devices hereinafter described and defined in the claims.

The invention is illustrated in the accompanying drawings, wherein like characters indicate like parts throughout the several 1;

' gand'holds the roller 12 in posltlonon the p l stem 1.1.

views. Referring to the drawings, Figure 1 1s a view showing the improved device in end elevation apphed' in working positionto a traction engine; Fig. 2 is a view of the improved device in side elevation, on an enlarged scale,'withsome parts sectioned'onthe line 00 00 of Fig. 1; Fig. 3 is a plan view of the improved device, on an enlarged scale, removed from the traction engine, with some parts broken away and with some parts shown in a dotted line position;Fig. 4 is a detail view, on an enlar ed scale, with some parts sectioned on the line m m of Fig. 3 and Fig. 5 is a detail view, on an enlarged scale, with some parts sectioned on the line.

m of Fig. 3.

Of the traction engine illustrated for the purpose of showing the improved device applied in working position, the numeral 1 indicates the boiler, and 2 the pulley over which runs a'belt 3.

Referring to the improved belt guide and belt shifting device, the numeral 4 indicates a skeleton supporting brac ket-, preferably made upof angle irons and, as shown, is securedto one side of the boiler-'1, slightly forward; of the pulley-l 2,-:by meansof a clamping-band 5.. This clamping band 5 is secured to the brackets l-and extends from both-sides thereof around the boiler ,1 and isclamped thereon against sliding movement byany suitable meansfsuch as a'draw bolt, (not shown) interposed 1n the clamp- Specification of Letters Patent. Application filed March 13, 1911. Serial No. 613,293.

' Patented. July 30,1912.

ingband 5. If desired, two of these clamping bands may be used in place of the one shown. The bracket 4 is provided with a horizontallyprojecting stem 6 which is rectangular in cross section, except at its extreine outer end portion, which is round and has been indicated by the numeral 7. Loosely telescoped onto the stem 6 is a sleeve 8 that'is also rectangular in cross section but considerably larger than the stem 6. This sleeve 8 is slidably mounted on. the stem 6,-

by means of rollers 9 placed withinv the sleeve '8- and rotatively mounted on nutted 1 bolts 10 passed through the sleeve 8 and a1? ranged in horizontally and vertically extended pairs, at both ends of the sleeve 8.

Rig-idly secured to anddepending from the- "under side of the sleeve 8 is-a stem 11 on. which is rotatively mounted avertically extended guiding and shifting roller 12. At ithe extreme lower-end of the stem 11,- a nut has screw threaded engagement therewith Mounted on the stem portion 7 is-a pair of collan's, 13 and 14: having on their opposite, Qinner faces cooperating half clutches 15 and .116, respectively. with a stem 17 which normally extends ver- Qtically downward therefrom. On this stem. 17 is rotatively mounted a second belt guiding roller 18 that is held on the stem 14 by The collar 14 is provided means of a nut having screw-threaded en.- gagement with the lower end thereof. Normally, the lower section of the belt 3 loosely runs between the laterally spaced and. de-.

pending rollers 12 and 18. Extending over and between the rollers 12 and 18 is a horizont'ally extended sleeve-like roller 19 rotatively mounted-on a long rod 20 which extends parallel to the stem 6 and stem portion '7 and is supported therefrom at its ends by means of a, pair of brackets 21, one of which is secured to the stem 6 and the other thereof '18 secured to the stem. portion 7. This roller 19 keeps the belt3 out of engagement with the stem 6v and the adjacent parts carried thereby, and thereby prevents undue fr'iction'and damageto the belt 3. To. preyent binding of the sleeve 8 on the stem 6, when the iunning belt 3 comes in contact with the roller 12, a bracket. 22. is rigidly secured to the under side of the sleeve 8 and projects laterally therefrom. The outer end of this bracket prongs thereof embrace the roller 19. and

22 is bifurcated and the I have rotatively secured therebetween a roller 23 adapted to run upon the outer sur-- face of therojller 19' as the sleeve 8 travels on the stem 6. The collar 14 is rotatively mounted on the stem portion 7 and the collar 13 is mounted on the stem portion 17 for limited sliding movement ahd is held against ment with thehal-f-clutch 16, and

, clutch members are a hub which is loosely telescoped onto the stem portion 7 and is pivotally secured thereto by means of a pivot pin 25. The lever 24 is connected to the collar 13 by .means of a pair of'links 26 pivotally secured to one end of the lever and to opposite sides of the collar 13. The opposite-end of the. lever 24 to which the links 26 are secured,

is bifurcated and betweenthe prongs thereface, 29 and a clutches 15 and 16 areheld of, is pivotally mounted an anti-friction roller 27, the purpose of which will presently appear. Secured to one side of the sleeve 8 is a forwardly extended spring lever 28 provided at its forward end with a cam surroller engaging seat 3.0. Whenthe roller 27 of the lever 24 is engaged bythe seat30 of the lever 28, the halfinterlocked and and 18 are in During the outthe belt guiding rollers 12 their operative positions.

ward movement of the sleeve 8, the cam surface 29. engages the roller-27 and moves the lever 24 on its pivot 25, and, through the links 26, separate the half-clutches 15 and 16 and under the return movement of the sleeve 8, the cam surface 29 again returns the half-clutches 15 and 16 to their interlocked position.

The sleeve 8 is moved back-and forth on the stem 6. by means of 'a pair of oppositely projecting cables 31 and which gives the forward movement to the sleeve 8, is secured at one of its ends to a forwardly extendedportion of the sleeve 8 and is passed over a guide sheave 33 mounted in an L-shape bracket 34, rigidly secured to the extreme outer end of the stem portion'7. The other end of the cable 31 extends rear ward and is secured to a windin .drum 35 which, in turn, is rigidly secure near the inner end of a long operating shaft 36 which extends along the side of the boiler 1 and is provided atits outer end with a handwheel 37 which is within easy reach of the engine platform. The shaft 36 is rotatively mounted in a pair of bearings 38 and 39. The

bearing is secured to and carried by the 32. The cable 31 belt and to sition and bracket 4, and the bearing 39 is secured to the-rear end portion of the'boiler 1. To look the shaft ratchet device 40 is secured to the shaft 36 and the bearing 39. The -cable 32, which gives the return movement to the sleeve 8, is secured at its forward end to a rearwardly projecting portion of the lever 28 and its other end is secured to the winding drum 35. The cables 31 and 32 are so arranged that 'when one of the cables is wound onto the winding drum 35, the other is unwound therefrom, and vice 'versa.

The operation of the above described device may be briefly stated as follows: lVhen it is desired to throw the belt 3 off from the pulley 2, the shaft 36'is rotated by means of the hand wheel 37, in a direction to wind the cable 31 onto the drum 35, thereby moving the sleeve 8 outward on the stem.6, thus brmging the roller 12 into engagement with the inner edge of the belt 3. During this same movement, the cam surface29 acting on the -roller 27 of the lever 24, releases the clutch members 15 and 16 at which time the roller 18 is free for swinging movement. As the belt'3 is crowded outward by means of the roller 12 acting on its inner edge, the outer edge of thebelt 3 comes in contact with the roller 18 and under the runn ng movement of the belt 3, which is moving in the direction of, the arrow marked on Fig 1, the roller 15 will be swung into a substantially horizontal position, as indicated by dotted lines in Fig. 3, thereby permitting the belt 3 to move under the roller 15 as the same is forced edgewise off from the fly wheel 2 under the continued lateral movement of the roller 12. As soon as the belt 3 drops oil from the pulley 2, the roller 18 returns to its normal position under the action of gravity.

What Iclaim is: I

' 1. Ina belt guiding and shifting device comprising a pair of depending belt guiding devices, one of which is mounted for travel- 36 in set position, a pawl and mg movement toward and from oneedge of I the belt, and the other of which is mounted for swinging-movement in a plane parallel to the plane of movement of said belt, and means for operating said traveling belt guiding device, said swinging belt 'uiding device being adapted to be engaged by said e moved into an inoperative poarranged to be returned to an operative ppsition by the action of gravity. 2. In a elt guiding and shifting device comprising a pair of depending belt guiding device's, one of which is mounted for traveling movement toward and from one edge of the belt, and the other thereof is mounted for swinging movement in a plane parallel to' the plane of movement of said belt, arranged to be moved into an in jipera' -t ive position when engaged by the belt, andscribed.

3. In a belt guiding and shifting device comprising a pair of depending belt guiding devices, one of whlch 18 mounted for traveling movement toward and from one edge of the belt,'and the other thereof is mounted for swinglng movement, arranged -to be moved into an inoperative position when engaged by the belt, and adapted to be returned to an operative position under the action of gravity, means for operating said traveling beltguiding device, and means carried by said traveling belt guiding device for locking and for releasing said swinging belt guiding device when in an operative position, including cooperating clutch members, substantially as described.

4. In a belt guiding and shifting device comprising a pair of depending belt guiding devices, one of whichis mounted for traveling movement toward and from one edge of the belt, and the other thereof is mounted for swinging movement, arranged to be moved into an inoperative position when engaged by the belt, and adapted to'be returned to an operative position under the action of gravity, means for operating said traveling belt guiding device and means carried by said traveling belt guiding device for locking and for releasing said swinging belt guiding device when in an operative-position, including coperating clutch members and a cam equipped lever, substantially as described.

5. in a device of the kind described, the eombimition with a supporting stem, a sleeve mounted to slide thereon, and means for moving said sleeve, of pair of collars mounted on said stem. and having cooperating clutch members, one of said collars being mounted for rotary movement and the other thereof, for sliding movement, belt guiding rollers carried by said sleeve and said rotary collar, and means for moving said sliding collar for rendering said cooperating clutchmembers operative and inoperative. substantially asdescribed.

6.. In a device of the kind described, the

combination with a supporting stem, .a

sleeve mounted to slide thereon, and means for nmvin said sleeve. of a air of collars mounted on said stem and having cooperating clutch members, one ct collars being mounted for rotary movement and the other thereof, for sliding movement, belt guiding rollers carried by said sleeve and said rotary collar, and means carried by said sleeve for moving said sliding collar for rendering said cooperating clutch members described.

'7; In a device of the .kind described, the combination with a supporting stem, a sleeve mounted to slide thereon, and means for moving said sleeve, of a pair of collars mounted on said stem and having cooperating clutch members, one of said collars being mounted for rotary movement and the other thereof, for sliding movement,

.belt guiding rollers carried by said sleeveand said rotary collar, a lever mounted on said stem, a link conn'ectingsaid lever' and said rotary collar, and an arm carried by said sleeve and operative on said lever to render said cotiperating clutch members operative and inoperative, substantially as described. I

8. In a device of the kind described, the

combination with a supporting stem, a

sleeve mounted to slide thereon, and means for moving said sleeve, of a pair of collars mounted on said stem and having cotiperating clutch members, one of said collars being mounted for rotary movement andthe other thereof, for sliding movement, belt guiding rollers carried by said sleeve and said rotary collar, a lever mounted on said stem, a link connecting said lever and said rotary collar, and an arm carriedby said sleeve and having at its free end a cam.

surface for operating said lever, substantially as described.

9. In a device of the kind described, the combination with a supporting stem, a sleeve mounted to slide thereon, and means for moving said sleeve, of a pair of collars mounted on said stem and having cotiperating clutch members, one of said collarsbeing mounted for rotary movement and the other thereof, for sliding movement, belt guiding roller equipped stems depending from said sleeve and said rotatingcollar, a lever-intermediately pivoted to said supporting stem, a link connecting said lever to said sliding collar, and a spring arm car ried by said sleeve and having at its free enda cam surface for operating said lever, substantiallyas described.

10. In a device of the kind described,

the combination with a supporting stem,

operative and inoperative, substantially as and asleeve mounted to slide thereon, of a 1 pair of reversely extended cables secured to said sleeve and arranged to move the same in reverse directions, a pair of collars mounted on said stem and having cooperating clutch members, one of said collars being mounted for rotary movement and the other. thereof, for sliding movemerf,

belt. guiding roller equipped stems depending from said sleeve and said rotary collar, a lever intermediately pivoted to said supporting stem, a link'connecting said lever to said sliding-collar, and a spring arm carried by said sleeve and having at its free end a cam surface for operating said lever,

it substantially as described.

11. In a device of the kind described," the combinationwith asupporting stem, and a sleeve mounted to slide thereon, of a drum equipped operating shaft, a pair of refor vsliding movement, belt guiding on said drum, a 'pair'of collars mounted on said stem an having cooperating clutch members, one ofsaid collars being mounted for rotary movement andthe other thereof,

roller equipped stem depending from said sleeve 15 sleeve and having at its free end a cam 20 surface --for operating said lever, substantially as described.

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

JOHN H. MUN SON Witnesses:

B. HANSSON, JoHN HELLAN.

Washington, D. 0.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

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