US892325A

US892325A - Variable-speed and reversing mechanism.

Info

Publication number: US892325A
Application number: US31192206A
Authority: US
Inventors: William J Steinle; Edward M Steinle
Original assignee: Individual
Current assignee: Individual
Priority date: 1906-04-16
Filing date: 1906-04-16
Publication date: 1908-06-30
Anticipated expiration: 1925-06-30

Description

No. 892,325. I PATENTED JUNE 30, 1908. W- ,J. & E. MQSTEINLB.

VARIABLE SPEED AND REVERSING MECHANISM.

APPLIO'ATION FILED APR. 16, 1908.

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APPLICATION FILED APR. 16, 1906.

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VARIABLE SPEED AND REVBR APPLICATION I i 1 Hum illmhllhuli No. 892,325. PATENTED JUNE 30, 1908. W. J. & E. M. STEINLE. VARIABLE SPEED AND REVERSING-MECHANISM.

APPLICATION FILED APR. 16, 1908.

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lllll PATENTED JUNE 30, 1908. w. J. & E. STBINLE.

' VARIABLE SPEED AND REVBRSING MECHANISM.

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No. 892,325. PATENTED JUNE 30, 1908. W. J. & E. M. STEINLE. VARIABLE SPEED AND REVERSING MECHANISM.

APPLICATION FILED APR.16, 1906.

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No. 892,325. PATENTED JUNE 30, 1908. W. J. & E. M. STBINLB. VARIABLE SPEED AND REVE'RSINGMEOHANISM.

APPLICATION FILED APR. 16, 1906.

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UNITED sTATEs PATENT OFFICE.

WILLIAM J. STEINLE AND EDWARD M. STEINLE, OF CHICAGO, ILLINOIS.

VARIABLE-SPEED AND REVERSING MECHANISM.

Specification of Letters Patent.

Patented June 30, 1908.

Application filed April 16, 1906. Serial No. 311,922.

To all whom it may concern:

Be it known that we, WILLIAM J. STEINLE and EDWARD M. STEINLE, citizens of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Variable-Speed and Reversing Mechanism, of which the following is a specification.

Our invention relates to improvements in variable speed and reversing mechanism; and the object of our improvements is to provide improved means for increasing or decreasing the speed of the propelled mechanism without changing the speed of the engine, motor or other propelling mechanism.

A further object of our invention is to provide a speed regulator having a non-rotatable expanding and contracting pulley or drum.

In the drawing-Figure 1 is a side elevation view of the preferred form of our improved variable speed and reversing mech anism; Fig. 2 a side elevation view of a modified construction of same; Fig. 3 a view taken on the line 3-3 of Fig. 2; Fig. 4 a view taken on the line 4-4 of Fig. 1 or Fig. 2; Fig. 5 a cross sectional view taken on an enlarged scale on the line 55 of Fig. 1 or Fig. 2 between the mechanism mounted on the inner face of the non rotatable circular frame 7, and the mechanism mounted on the adjacent face of the rotatable disk 35'; Fig. 6 a cross sectional view taken on an enlarged scale on the line 66 of Fig. 1 or Fig. 2 between the same mechanism specified in above description of Fig. 5; Fig. 7 a detail view, taken on an enlarged scale, showing fragments of the shaft, the large gear wheel, the large disk, a small pinion and a screw key employed in the machine of modified construction shown in Fig. 2; Fig. 8 a view of the inner face of the spiral worm gear shown on an enlarged scale; Fig. 9 a side view taken on an enlarged scale of one of the slidable racks detached from the circular frame shown in Fig. 6; Fig. 10 a view of the right hand endof Fig. 9; and Fig. 11 an outline view of portions of the machine of preferred form shown in Fig. 1.

Referring to the drawings in detailThe reference numeral 1 represents the main frame having bearings or boxes 2 and 3 for the main shaft 4. Secured on the end of the shaft 4, adjacent to box 2, is a pulley 6 which may be of any desired construction and to whlch power, for operating the mechanism,

may be applied, or the said power may be applied to shaft 4 in any other manner desired. Located adjacent to the inner end of the box 2 is a circular frame 7 secured to the main frame 1 by means of the machine screw 8 and the braces 9 and 10, and having a hub 11, and provided on the same side with an annular groove 12. Rotatably arranged in said annular groove is a ring gear 13 provided on its inner face with a spiral worm 14, and provided on its opposite or outer face with cogs 15, and secured in place by means of a collar 16 secured on the hub by a set screw 17. Secured to the frame 7 by means of the clamp 18 and machine screws 19 is a beveled pinion 20 for engaging and rotating the said ring gear 13, and having an upright stem 21 provided at its upper end with a crank or handle 22 for rotating said pinion 20. Formed in the opposite side of the circular frame 7 are several diverging channels 23 all communicating with the annular groove 12 in the opposite side of the frame 7, and each formed with the grooves 24. Slidably mounted in each of said channels 23 is a rack 25 provided on its inner face with teeth 26 for engagement with the spiral worm 14, and provided on opposite sides with flanges 27 slidably arranged in the grooves 24, and each provided near its outer end with a jut 28 projecting from its outer edge or face and forming a jaw. Said racks are held in place by metal plates 29 which are secured to the face of the frame 7 by screws 30, and which have their edges overlapping the rack flanges 27. In Fig. 6 of the drawing one of the racks and two of the plates 29 are removed. The said jaws form a drum around which the planetary link chain 31 travels. Two of said jaws are provided with teeth or sprockets 32 to engage the links of the chain and prevent the latter from slipping when it travels around the drum. By rotating the ring gear 13 the racks 25 and their jaws are caused to move to or from the center simultaneously, thereby proportionately decreasing or increasing the size of the said drum, the purpose of which contraction and expansion will be later explained. Inasmuch as the two jaws which carry the teeth 32, are located on opposite sides of the frame 7 it is apparent that the chain will at all times be engaged by one or the other of these jaws and that it will not be engaged by both long enough at a time to interfere with the expansion or contraction of the drum.

. a grooved pulley 46 for said chain; a stra or,

a lobe gear 36 pivoted to the disk 35 at..37,.

and having two peripheral faces provided respectively with teeth .38 and 39 the latter meshing withthe cogs of thepinion 34 a notched shoe 40 carried by said lobe and secured thereto with screws 41, and having its opposite edge adapted to engage theinner face of the rack jaws as will hereinafterbe more fully described; a lobe 42 pivoted to the disk 35, and provided with teeth'43. meshing with the teeth 38 of the lobe 36, and having an arm44 provided at its outer end with a stud 45 on which there is rotatably mounted keeper 47 for said arm; twogrooved pul eys, 48 and 49 rotatably mounted respectively on

studs

50 and 51, and adapted to carry said chain; and a rotatable-shaft. 52 having secured on one end a sprocket pulley 53for said chain, and having secured on its oppo; site end a planetary pinion 54 having teeth 55meshing with the cogs 56 on the gear. 57 which latter is loosely mounted on shaft 4 between the disk 35 and the box 3. to and carried bygear 57 is a pulley 58 for transmitting variable motion to the ma, chinery ormechanism. to be operated. I

In'Fig. 5 of the drawings it will be'seen. that the'pulleys 46, 48, 49. and 53 .are .ar-

ranged inside of the chain the position of which latter is indicated by the dotted line 31 and that the drum althoughengaged thereby is located on the outer or opposite side of the chain from the pulleys, and that the chain and the pulleys have a planetary movement around the ,drumwhen the disk 35 rotates.

The further operation of .our variable speed and reversing mechanism, as above described, is as follows: Shaft 4 is caused. to rotate, in the direction indicated, by applying suitable power to the pulley 6 or to the shaft 4 in any other manner desired. Said rotary movement of the shaft 4 causes. a like movement of the pinion 34 which in turn engages the lobe gear 36 which being mounted on and secured to the disk 35 causes the latter to rotate in thesame directionas the; shaft 4 and pulley 34. The engagement of; the gear 34 with the lobe gear 36, causes thei latter to engage the lobe gear 42 which latter engagement tends toswingthe arm -44,and

pulley 46 towards the opposite end of the:

strap 47 or to the position indicated by the dotted lines 44*, 46 and thereby carrying the chain further around the drum, and; always keeping the chain tight onthe drum? Loosel .rotate at variable speeds.

Secured.-

and pulleys. The planetary movement of the chain around the non-rotatable drum,

and its engagement'with the teeth 32, as

axle 52 and the planetary pinion 54, which latter, -when the disk 35 rotates, travels aroundthe. gear. 57 and causes the latter to Assuming that the speed of the disk 35, is uniform. at all times the speedof the gear 57 may be varied. either by changing the diameter of the gear 57, the pinion 54, or the sprocket pulley 53, orby expanding vthe drum which proportionately increases the speed. of the pinion 54, or by contractingthe. drum whichproportionately decreases the speed of" the pinion 54. In operating a.working;model of our invention. made substantially. as shown and described we obtain thefollowing results:"

When .the. drum is expanded ..as shown in Fig. 1 the pinion 54' travels around thegear 57 without rotating the latter, and when the .drumis contracte'dthe pinion 54 propor; tionately decreases its speed and therefore pulls the gear 57around with it. .It is apparent that if, they pinion 54 did not rotate at all the speed of the disk 35 and gear 57 would be equal.

yond the size first describedthat the rotation of the pinion 54.would,proportionately increase and cause the gear 57. to rotate. in the opposite direction to the disk 35. It is. seen.

therefore thatthe mechanism of our inven*1 tion enablesthe motion of the driven element to be either increased or diminished or reversed,-or stopped without changing the speed of the. driving element. In the event. of the. disk 35,running ahead of the driving";

power, the engagement of the shoe 40 with the inner face of the jaws prevents the arm 44 and pulley 46'from receding and loosening the chain. as they would otherwise do.

The construction of the machine of modi It iszfurther apparentthat if the. drum should'be. still further expanded be' has two

separate shafts

5 and 5" in place of the main shaft 4, and second that the-gear 57' is keyed to and rotates with shaft '5, and third that the pulley 58 is substituted for the pulley 58 and is secured on and rotates with the shaft 5.

Any suitable belt which can be operated without slipping onthe drum or pulley '53 .may be substituted for-the link chain.

Since certain other changes of construcwish to be confined to the specific construction shown and described.

'Whatwe claim as new and desire to secure by LettersPatent, is

.tion might be madein our variable speed andv reversing mechanism without departing from c the spirit of our invention we do not 1. In a variable speed and reversing mechanism, a suitable support, a shaft having bearings in said support, a non-rotatable drum mounted on said support, a rotatable frame mounted on and driven from said shaft, pulleys mounted on and carried by said rotatable frame, one of said pulleys having a rotatable axle extending through the rotatable frame, a planetary pinion secured on the end of the axle opposite the pulleys, a gear mounted on the shaft and meshing with said planetary pinion, and a belt having its inner face traveling on the pulleys and having its opposite face engaging the drum.

2. In a machine of the character described, a suitable support, a shaft having bearings in said support, a gear mounted on said shaft, a rotatable frame mounted on and driven from said shaft, a vibrating arm pivoted. to said frame, ulleys carried by said frame, one of said pufleys having a rotatable axle, a pinion mounted on said axle and meshing with and traveling around said gear, another one of said pulleys being mounted on said vibrating arm, means for vibrating the arm, a nonrotatable drum surrounding said shaft, and a belt mounted on the pulleys and drum and traveling around the latter.

3. In a machine of the character described, a suitable support, a shaft having bearings in said support, a gear loosely mounted on said shaft, a rotatable frame mounted on and driven from said shaft, a vibrating arm pivoted to said frame, pulleys carried by said frame, one of said pulleys having a rotatable axle, a pinion secured on said axle andmeshing with and traveling around said gear, another one of said pulleys being mounted on said vibrating arm, a nonrotatable drum surrounding said shaft and secured to said support, and a belt mounted on the pulleys nd drum.

4. In a machine of the character described, a suitable support, a shaft having bearings in said support, a gear mounted on said shaft, a rotatable frame mounted on and driven from said shaft, pulleys mounted on the side of the frame opposite the gear, one of said pulleys having a rotatable axle extending through the frame, a pinion mounted on said axle for engagement with said gear, a non-rotatable drum mounted on the support, means for causing the expansion and contraction of the drum, a belt mounted on the pulleys and drum, and means for automatically shifting the position of one of the pulleys relative to the expansion and contraction of the drum.

5. In a machine of the character described, a suitable support, a shaft having bearings in said support, a wheel mounted on said shaft, a rotatable frame mounted on and driven from said shaft, pulleys mounted on the side of the frame opposite the wheel, one of said pulleys having a rotatable axle extending through the frame, means for connecting the said axle and wheel and for rotating the latter, a non-rotatable expansible and contractible drum mounted on the support, means for causing the expansion and contraction of the drum, a belt traveling around the pulleys and engaging the drum, and means for automatically varying the position of one of the pulleys relative to the drum for the purpose described.

6. In means for connecting a driving element with a driven element and for varying the speed of the driven element without changing the speed of the driving element, a suitable support, a shaft rotatably mounted in said support and adapted to be connected with the driving element, a rum-rotatable expansible and contractible drum surrounding the shaft and secured to the support, a rotatable frame mounted on and connected with and driven from said shaft, pulleys rotatably mounted on one side of the frame, one of said pulleys having an axle rotatable therewith, a belt traveling on the pulleys and engaging the drum, and means for connect ing the said axle with the element to be driven.

7. In a machine of the character described, a suitable support, a shaft having bearings in said support, a gear mounted on said shaft, a rotatable frame mounted on and driven from said shaft, pulleys mounted on and carried by said frame, one of said pulleys having a rotatable axle, a pinion mounted on said axle and meshing with and traveling around said gear, a non-rotatable drum surrounding said shaft and provided in one face with radiating channels, a link belt mounted on the pulleys and drum, racks slidably arranged in said channels and provided on their outer ends with jaws forming a track to receive the belt, two of said jaws being located opposite each other and provided with teeth for alternate engagement with the links of the belt, and means for sliding the racks in the channels.

In testimony whereof we aflix our signatures in presence of two witnesses.

WILLIAM J. S'IEINLE. EDWARD M. STEINLE.

I/Vitnesses:

O. K. Tnnoo, lino B. LINCOLN.