US617273A

US617273A - Bicycle

Info

Publication number: US617273A
Authority: US
Publication date: 1899-01-03
Anticipated expiration: 1916-01-03

Description

No. 6|7,273. Patented Ian. 3, I899.

F. P. BEMIS. I

BICYCLE.

(Application filed Aug. 25. 1896. (No Model.) 2 Sheets-Sheet J1.

No. 617,273. Patentedllan; 3, I899.

FFP. BEMIS.

BICYCLE.

(Applicakiop filed Aug. 25, 1896.)

(No Model.)

2 Sheds-Sheet 2.

m: mums PEYERS o0. Fumouma, WASNINGTON. n4 0 rrnn FREDERICK P. BEMIS, OF DAVENPORT, IOWVA.

BICYCLE.

SFECIFIGATION forming part of Letters Patent No. 617,273, dated January 3, 1899. Application filedAugust 25,1896. Serial No. 603,909. (No model..

To ctZZ whom it may concern: v

Be it known that I, FREDERICK P. BEMIS, a citizen of the United States, residing at Davenport, in the county of Scott and State of Iowa, have invented certain new and useful Improvements in Bicycles; 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.

My invention relates to certain new and useful improvements in bicycles; and it especially relates to means whereby a vehicle having it applied thereto may be propelled, in means whereby such a vehicle may be guided, in a seat and body-support for the rider, and in an air-plow to be used in connection with a bicycle; and it especially consists in the construction, arrangement, and combination of the several parts of which it is composed, as will be hereinafter more fully described and claimed.

Although in the accompanying drawings I have shown my propelling mechanism as ap plied to a bicycle, it will be obvious from the following description that it may be applied with advantage Whenever it is desired to convert a reciprocating linear motion into a continuous circular one.

Referring to the accompanying drawings, in which corresponding parts are designated by similar marks of reference, Figure l is a side elevation of a bicycle having my invention applied thereto. Fig. 2 is a front elevation thereof. Fig. 3 is a plan view thereof with the rocker-arm and parts carried thereon removed for better illustration. Figs. 4 and 5 are detailed views of one of the propelling-handles, the last-named figure showing the clip to support it when not in use. Figs. 6 and 7 are detail views of a driven pulley, showing the use of rollers to lessen the friction between the pulley and the belt and the use of teeth to form a positive engagement. Fig. Sis a detail end view of a driven pulley, showing the manner of supporting its hood; and Fig. 9 is a front elevation thereof, partly in section, mounted upon a fork. Fig. 10 is a plan view of the body-support adapted for male use. Figs. lland 12 are plan and side views, respectively, of a bod y-support adapted for female use, the latter figure also showing the mounting of the seat-post. Figs. 13 and 14C are side elevations of modified forms of bodysupports. Figs. 15 and 16 are rear and side elevations, respectively, of an air-plow to be supported on or carried in front of a bicycle.

Fig. 17 is a detail view showing the connec-' tion between the seat-post and the steering post applicable to the construction shown in Figs. 1, 10, 11, 12, and 13.

In the accompanying drawings I have shown two forms of propelling mechanismviz., a manually and foot operated mechanism--and it is obvious that these can be used together or separately, either by themselves as the sole means of propulsion or in combination with any other approved form of propulsive mechanism.

The manually-propelled mechanism is as follows: Upon each end of the hub of the front wheel A is secured a grooved pulley 2,

while upon the handle-bars B of the machine,

on each side of the steering-post C, is mounted a corresponding grooved pulley 3. By preference I make the handle-bars B in the form shown-that is to say, with a crank in each side of the center, the idler-pulleys 3 being each mounted on a diagonally-bored sleeve 4, suitably clamped on such crank portions of the handle-bar, whereby as the handle-bars may be turned in the clamp O on the head of the post 0 and be clamped therein the pulleys 3, owing to the circular path in which their hearings will travel, may be caused to move away from or toward the pulleys 2 and forwardly or rearwardly to accommodate the rider, the diagonal boring of the sleeves permitting by their adjustment on the handle-bars the plane of rotation of the pulleys to be kept constant. Over the pulleys 2 and 3, thus located on each side of the bicycle, is passed a flexible driving connection 4:, hereinafter called the driving-belt, although it is not a continuous ring, inasmuch as it cut, and the ends formed thereby instead of being connected together are connected to a propelling-lever in the form of a handle 5. Each of these handles consists of a block 6 of proper size and shape to be grasped by the hand, being,-if desired, made of some porous yielding plastic material, which may be molded by the rider to fit While still soft, which closes the rear and otherwise open end of a U shaped piece 7, the block having a perforated projection 6" on the rear side thereof to permit the passage of the thumb, and having a series of ears 6" to afford bearings for the ends of the fingers, whereby the block may be securely grasped in order to permit the rear end of the handle to be raised by a wrist motion analogous to the motion of the wrist in feathering an oar. The downcoming end 4 of the belt 4 is attached to the curved front end of the U-shaped piece of the corresponding handle, the upcoming end 4 thereof passing over the rear surface of the block and being secured thereto, it passing over the periphery thereof between the forefinger and the thumb. Any slack in the belt caused by a variation in the distance between the pulleys 2 and 3 may be taken up by tying a loop therein or it may be taken up by any approved clamping device. A pulley 8, which will hereinafter be called the transverse pulley t0 distinguishit from the pulleys 2 and 3, the former of which will be called driven pulleys, which are longitudinal, is adj ustably mounted on a stud 9, projecting in the plane of the machine from the steeringpost and adjustable in this plane by the clamping pivotal connection B and has passing over it a strand 10, having its opposite ends secured to the opposite propelling-handles, whereby they are caused to move in opposite directions.

Such being the construction, it will be seen that if one handle 5 be tilted by the wrist motion, hereinbefore referred to, so that its rear end is raised, as is shown in the near handle in Fig. 1, which handle is represented as completing its upstroke, the belt 4: will be made taut and will bind 011 the pulley 2, and if at the same time the same handle be raised bodily the driving-belt will be moved in the direction of the arrow and will turn the forward wheel in a direction to propel the bicycle. As the opposite handle is being simultaneously depressed and the power imparted thereto is in excess of that required so to do, the surplus will assist in raising the firstnamed handle through the strand 10. It will, moreover, be seen that if the pulley 8 be placed in the rear of the line joining the pulleys 2 and 3 the strain thus imparted to the upcoming handle by the strand 10, assisted by the pull of the rider applied thereto from the rear, will draw the upcoming handle toward the rear and backward of the said line, and thus assist in taking up the slack in the belt 4:, and under certain conditions this maybe sufficient to produoe'the desired tightening of the belt without the tilting ofthe handles. By merely taking up the slack in the belt in any desired manner and holding the handles stationary the friction between the belt and pulley 2 will serve as a brake to stop the bicycle. When a handle has reached the limit of its upstroke, its rear end may be lowered by a reverse wrist motion to cause it to assume the inclination of the off handle in Fig. 1 and to slacken the belt so as to permit it to pass without friction over the pulley 2, when the handle may be again pressed down preparatory to another upstroke.

The driving-belt 4 may be in the form of a chain, belt, or cord and may be of different cross-sections and of different constructions at different points; but a sprocket-chain is objectionable, as it does not lend itself to braking in the manner before described, and if it is desired to form a positive engagement between the belts and the pulleys 2 the latter may have rearwardly-facing teeth 11 in the groove thereof and the belt have forwardlyfacing teeth 12 to engage therewith on its forward movement, the inclined faces of these teeth sliding over each other when the belt is slackened and movedin an opposite direction.

The movements of the handles may be checked by attaching thereto acord 13, either composed of an elastic fabric or formed by a non-elastic fabric connected to a spiral spring 14, which is in turn secured to a clip 15, fastened, for instance, to the steering-column D between the upper and lower ends of the stroke of the handles. If such a cord be secured to the rear portion of a handle, as is shown, the point of attachment being on the rear face of the handle-block 6, it will be seen that when the handle is stopped at the upper end of its path by this cord its rear end will be pulled down thereby, thus slackening the belt 4, as is necessary, while when the handle is stopped at the lower end of its path its rear end will be drawn up, tightening the belt. Moreover, the reaction of the spring when a handle is stopped at the end of its upstroke will be imparted through the strand 10 to the opposite handle, which has just completed its downstroke, and will aid the spring attached to the latter handle in giving an initial upward movement thereto.

Suitable springcatches 15 may be providedfor instance, mounted upon the clips 15, as is shown-to hold the handles 5 in the proper position to slacken the belts when the manually-propelled mechanism is not in use.

In order to prevent the belts 4 from slipping otf the pulleys when slackened and to prevent the catching of apparel, &c., between them, I provide hoods 16 and 17, closely fitting over a portion of the periphery of the pulleys 2 and 3, respectively, the hoods 16 of the pulleys 2 being secured upon the lower ends of the forks D and being by preference made by a semicircular plate 16, having a flange 16 bent upon its curved edge, which fits over the pulley, the plate having a channel 16 therein in which the fork fits.

In order to reduce the friction attendant upon the rearward movement of the belt 4 upon the forwardly-rotatin g pulley 2, pockets 2 may be formed in the periphery of the latter, as shown in Figs. 6 and 7, in which are contained antifriotion-rollers 18, the pinions 18 of which rest on blocks 18, mounted in slots 2 in the sides of the pulley and are pressed outwardly therein by spiral springs 19. By this construction when the belt is taut the rollers are forced within their pockets and the belt bears directly upon the periphery of the pulley and bites thereon, while when the belt is slackened the rollers are forced out by the springs and by centrifugal action and lift the belt from'the periphery of the pulley, and'will, when the belt is drawn rearwardly, permit such motion with a minimum of friction. It is obvious that such rollers may be used in connection with the toothed driving-wheel 2, such as before. described, in order to lift the belt from off the teeth thereof, and I have so shown in the accompanying drawings. I prefer, as shown, to form the slots 2 not radially in the pulleys, but with an inclination outwardly and toward the rear, whereby the forward movement of the belt will have a tendency to force the rollers in and a rearward movement of the belt to force them out, as is desired.

In Figs. 8 and 9 I have shown a construction by which a change of gear may be readily effected, which consists in forming a plurality of grooves in each of the pulleys 2, the grooves being of increased depth toward the outer ends of the pulleys, and in any of these the belt 4: may be placed. To permit this, the hood is not rigidly mounted on the shaft of the wheel or on the fork D, but is supported from the latter by spring-arms 16, whereby it may be moved longitudinallyin respect to the axis of the pulley to permit the channel 16 in the flange 10 thereof (and in which the belt will be located when it is desired to change the gear) to be moved over the desired groove, after which the channel 10 of the flange will be carried by the spring of the arms 16 back over the groove near the wheel. I may, moreover, if I so desire, provide a foot propulsive mechanism of the same general character as the manual propulsive mechanism before described, and may apply such a mechanism as well as the manual mechanism to either the rear or front wheels or to the crank-shaft in lieu of using the cranks and pedals now commonly employed, and in the accompanying drawings I have shown one method of accomplishing this result. 2, are mounted upon the hub of the rear wheel E, while idler-pulleys 3, similar to the pulleys 3, are mounted in brackets 9, adjustably clamped on the rear forks F, and over these pulleys belts 4 similar to the belts 4, may pass, the substitutes for the handles 5 being formed by pedals 5 having the downc-oming end of the belts attached thereto in the rear of the point of attachment of the upcoming end thereof, wherebyadvantage is taken of the natural stroke of the leg-t'. 6., the habit of drawing up thetoe and extending the heel when straightening the leg-to tighten the belt,which is done by the heel-pressure upon the foot-plate 20 of the pedal in the rear of the point of attachment of the upcoming end of the belt, as is shown in the off pedal in Pulleys 2, similar to the pulleys Fig. 1,while the reverse is the case when the foot is lifted. It will be noticed as the propulsive effort must be obtained upon the downstroke of the pedal (unless the drivingbelt be crossed or some equivalent construction be 'used) that the pedals must be in front of the pulleys 2 and 3and that a transverse pulley 8, similar to the pulley 8, may be mounted in brackets 9, adjustably mounted on the upper main tube I of the frame to receive the reciprocating strand 10', similar to the strand 10, having its ends attached to the stirrups 2O upon the foot-plates of the opposite pedals. Such a transverse pulley and strand,when the former is placed in front of the pulleys 2' and 3,will, moreover, tend, as has been stated in respect to the corresponding devices in the manually-operated mechanism, to tighten the driving-belt on a downstroke of the pedal, and this will be assisted if the rider be behindthe prolongation of the line joining the pulleys 2 and 3 and will be by the tendencyimparted by the foot to shove the pedal forward. It is also obvious that, if desired, the pedals may be checked by elastic cords attached to the rear end thereof and operating in the same manner as the cords 13.

The several pulleys S, 8, 2', and 3 may be all hooded, if desired, in the manner before described in reference to the pulleys 2 and 3.

In order to permit the ready insertion and removal of the feet, the stirrup-pieces. 20 should be cut away on the outer sides of the pedals, above the foot-plates thereof, and, if desired, a top clip 20 may be placed upon the toe of eachof the said plates. A light guardstrip 21 may be placed upon each side of the rear wheel between the stays Gand the main upright H to prevent the catching of the foot in the spoke of the wheel, and this will, moreover, serve to steady the pedals when the latter are not being reciprocated.

In connection with the driving mechanism before described I prefer to use the hereinafter described means forsupportin g the rider in an effective position to use the said driving mechanism; but it is believed that such a support will also be found to beef service in connection with the ordinary forms of pro pulsion.

The saddle 24 is adjustably carried on the rear end of the bent rocker-arm 25, pivoted by a clamp-collar 25, adjustable thereon, to the saddle-post 26 at a point in front of the saddle, the rocker-arm continuing forwardly in front of the pivotal point thus formed and being broadened out and having a pad or aircushion 27 on its upper face upon which the chest or the front portion of the body (or the head) of the rider may rest. It will be seen that by such a construction the saddle will always be adjusted to aiford a bearing for the rider to conform to the inclination of his body, for the inclination of the rocker, which controls the inclination of the saddle, depends upon the inclination of therider. By preference, instead of carrying the cushion 27 directly upon the forward end of the rockerarm I mount it upon a telescopic extension 25 thereof, pivoted transversely at 25 to the rocker-arm and capable of being clamped thereon at any angle to suit the comfort of the rider. Springs 28, attached to the frame and to the rocker-arm in the front and in the rear of the pivotal point of the latter and which may be shortened in any desired manner, provide for the desired limitations on the movement of the rocker-arm.

To provide a support for female use, the construction, but not the principle, is somewhat modified, as is shown in Figs. 11 and 12. The clamping-collar 30, similar in function to the collar 25, is adapted to receive and adjustably hold two

arms

31 and 32, the one above the other, the upper arm 31 supporting the saddle 24 at its rear end, while the lower arm 32 has its rear end bent around and continued forwardly, it being brought upwardly and to one side and then in and continued on the center line of the machine, as shown, and being provided with the transverse pivot 25 and pad 27, as before described, the tele scopic adjustment being furnished by sliding the arm 32 in the clamping-collar 30.

In Fig. 13 I have shown a modified form of body-support in which a sleeve 33 is adjustably clamped on the saddle-post and receives a collar 34, the collar having-cheeks 34 thereon, between which is pivoted a plate 35 on the rear end of the bent arm 35 of the bodysupport, the arm being locked to the cheeks by a locking-pin 35 engaging corrugations 34 on the periphery of one of the cheeks. The arm 35 may be telescopic and provided with a pad 27. In this construction the saddle is rigidly supported and only the support is movable in a transverse direction. The collar 34 may have lugs 52 projecting therefrom to afford a means of connecting it to the steering-head, as will be hereinafter described in relation to Fig. 12. In order to positively limit the movement of the arm 35 from side to side, a projection 33 may be formed upon the sleeve, engaging in a recess 34 in the collar, while spring-stops for such movement of the arm may be provided by springs 36, projecting from the horizontal part of the saddle-post, to which they are secured. I do not, however, in this application specifically claim the construction shown in Fig. 13, as that forms the subjectmatter of another application filed by me on February 13, 1897, and serially numbered 623,208, the same being a division hereof.

In Fig. 14 I have shown another form of body-support combined with a rigidly-supported saddle. In this figure,while the bodysupport is adjustable, it has after it has been once set only a limited movement due to its flexibility, and, as shown, I prefer to make the arm 37 of the support of a yielding construction, such as of a thin strip of hickory, which is twisted around a quarter revolution, so that its short axis is transverse in one por tion and in the plane of the machine in another, the last-named portion being near its upper end,which is broadened out into a rest, which is thus given a yielding support in a vertical plane to lessen jars,while the portion in which the short axis is transverse is near the point of support of the arm and permits the rest to be moved from side to side, as may be desired,the spring thereof tending to always return to the medial line. Such an arm may be supported by a clip 38, such as shown on the upper tube I of the frame in front of the saddle-post. I do not, however, in this application specifically claim the construction shown in Fig. 14, as it forms the subjectmatter of another application filed by me March 22,1897,andseriallynumbered 628,689, the same being a division hereof.

As the riders hands will be engaged in the propulsion of the bicycle the latter may be guided by mounting the saddle-post 26 loosely in the main upright H and connecting the steering-post therewith, so that by turning the saddle-post through the breast-rest the steering-post will be turned also. Aconvenient form of mounting for the post is that shown in detail in Fig. 12, in which a tube 48, having a closed lower end, is inserted in the upright, the saddle-post being secured therein at any desired height by the clamp 48. A block 49 is fixed within the main upright, and, as shown, this block has a recessed top, the recess being a flat bottom connected to the edges by an annular groove. The lower end of the tube 48 is closed, its bottom being fiat and being united to its sides by an annular groove, and between the flat bottom of the tube and the fiat face of the block and between the grooves thereof are contained antifriction-balls 50. A ball-bearing is also formed at the top of the main upright by forming a shoulder 48 on the tube 48, balls 51 being contained therein and held in place by the cap 51. These bearings permit the turning of the saddle-post and tube 48 by which it is carried with a minimum of friction and allow the ready adj ustment of the saddle to any desired height. Lugs 52 project from one side of the tube 48, while the steering-post has a corresponding arm 52 Fig. 17, projecting from the side thereof, the two arms being connected by a rod 52, running along the upper tube of the frame, the ends of the rod being bent, as at 52 this bending by the spring imparted to the rod thereby preventing jars upon the steeringpost being directly imparted to the saddle. From this construction it is obvious that upon rotating the saddle-post in the main upright a similar rotation will be imparted to the steering-post, it being advisable to connect the two in such a manner that the angular movement of the latter is greater-say, for instance, twice as muchthan that of the former. It will be also seen that this rotation may be imparted to the saddle-post by swinging the saddle,which is carried thereon ICC and in the rear thereof, from side to side of the machine or by a leverage exerted on the breast-rest by the front of the body, and it is to be observed that this side motion of the body in swinging the breast-rest exactly corresponds to the natural motion of the body in turning a curve.

I may, if I so desire, attach to the steeringhead an air-plow, and I prefer to make this in the form shown in Figs. 15 and 16, in which the plow is shown as supported on a telescopic brace 56, adapted to be clamped and vertically adjustable on the steering-post, so that it turns therewith, the outer and forward member 56 of the telescope being secured to the upright 57 of the frame of the plow, the said frame being composed of the said upright and the transverse top and bottom members 57, the whole being the form of a double T. The side wings 58 are composed of sheet metal and bent over the upright 57 and carried rearwardly therefrom on each side, while the top and bottom wings 58 are rigidly attached to the topand bottom members of the frame by carrying the front edges thereof around the same, the front edges of the top and bottom wings extending sufficiently in front of the frame to be below and above, respectively, the top and bottom of the side wings. From this construction it follows that the wings 58 and 58 may be bent upon the frame to vary their spread, which will determine the area protected by such a plow, the spread being varied for different speeds. In order to provide a ready means for effecting this variation in spread, I pivot to the rear of each of the wings one end of a toggle-arm 59, the opposite end of which is pivoted to a sleeve 59, mounted on the outer member 56 of the telescopic brace and adjustable thereon, and it will be seen that by moving this sleeve upon the brace the spread of the wings will be varied. The wings throw the air outwardly and a comparatively small plow may be used to give extensive projection to the rider.

By the term levers in the claims I do not limit myself only to a device adapted to be grasped by the hand, but I also desire to include a device adapted to afford a bearing for the foot or other reciprocating part unless the context of the claims otherwise limits the term; but

WVhat I do claim, and desire to secure by Letters Patent, is-- 1. In a device for transmitting power, the combination with a pulley and a guide, of a reciprocating belt passing over the pulley and guide and imparting motion to the pulley, and atilting lever interposed within the belt and having the oppositely-disposed ends of the belt connected thereto at difierent points whereby the ends of the belt may be moved in with respect to each other and whereby the belt may be tightened and the pulley driven upon the travel of the lever in one direction and the belt loosened and drawn over in the pulley on an opposite movement of the lever, substantially as described.

2. In a device for transmitting power, the combination with two pulleys, of a belt passing thereover and imparting motion thereto, and a tilting lever to which the two ends of the belt are connected at different points, the lever tilting around a point which is between the points at which the ends of the belt are connected,.the power being applied to the tilting lever between the points of attachment of the ends of the belt, substantially as described.

3. In a device for transmitting power, the combination with a pulley and guide, of a belt passing thereover and imparting motion to the pulley, and a lever to which the two ends of the belt are connected at different points, the lever tilting around apoint which is between the points at-which the ends of the belt are connected, the power being applied to the lever between the points of attachment of the ends of the belt and nearer the point of attachment of one end than the point of attachment of the other end, substantially as described.

4. In a device for transmitting power, the combination with two pulleys, of a belt passing thereover and imparting motion thereto, a lever to which the two ends of the belt are connected at different points and a stop for the lever which is thereby tilted, substantially as described.

5. In a device for transmitting power, the combination with two pulleys, of a belt passing thereover and imparting motion thereto, a lever to which the two ends of the belt are connected at different points, and springstops for one end of the lever at the end of its path of motion, which is thereby given an initial movement on each stroke and tilted, substantially as described.

6. In a device for transmitting power, the combination with two pulleys and guides, of an independent belt passing over each pulleyand guide and imparting motion thereto, a tilting lever for each belt to which the ends of the corresponding belt are attached at different points, and a strand connecting the levers, whereby the belts are caused to move in opposite directions and the levers tilted, substantially as described.

'7. In a device for transmitting power, the combination with two pulleys, of an independent belt passing over eachpulley and imparting motion thereto, a lever for each nately slackencd and tightened, substantially as described.

8. In a device for transmitting power, the combination with two pulleys, of an independent belt passing over each pulley and imparting motion thereto, a lever for each belt to which the ends of the corresponding belt are attached at different points, a strand connecting the handles, whereby the belts are caused to move in opposite directions, and spring-stops to limit the movement of the ends of the said levers, whereby they are tilted, an d given an initial movement on each stroke and tilted, thereby alternately tightening and loosening the belts, substantially as described.

9. In a propelling mechanism for cycles, the combination with a pulley on each end of a wheel-hub, an idler-pulley on each side of the frame, a driving-belt on each side of the cycle and passing overthe pulleys on the corresponding side, and a tilting lever interposed within each belt and having the oppositelydisposed end of the belt connected thereto at different points, whereby the ends of the belts may be moved in respect to each other, and whereby the belts may be tightened and the pulley driven upon the travel of the lever in one direction, and the belt loosened and drawn over the pulley on an opposite movement of the lever, substantially as described.

10. In a propelling device for cycles, the combination with a pulley on each end of a wheel-hub, an idler-pulley on each side of the frame, a driving-belt on each side of the cycle. passing over the pulleys on that side, a tilting lever for each be t to which the opposite ends of the corresponding belt are attached at different points, whereby the belts may be tightened and loosened when reciprocated, a transverse pulley, and a strand passing over the transverse pulley and connected with the levers, whereby the levers are tilted, substantially as described.

11. In a propelling device for cycles, the combination with a grooved pulley on each end of a wheel-hub, of an adjustable idlerpulley on each side of the cycle, a drivingbelt on each side of the machine passing over the pulleys on that side, means whereby the belts may be reciprocated and tightened and loosened while reciprocated, a transverse pulley, adjustable in the plane of the machine as to position and inclination, and a strand passing over the transverse pulley and connected to the opposite belts, substantially as described.

12. In a bicycle-propelling device, the combination with a grooved pulley on each side of the front-wheel hub, of a handle-bar cranked on each side of its pivoted center, means for locking the handle-bar in position, a stud projecting from the steering-post, an idler-pulley located on the crank portion of the handle-bar on each side of its pivoted center, a driving-belt on each side of the machine passing over the pulleys on that side thereof, means whereby the belts may be reciprocatecl and tightened and loosened while reciprocated, a transverse pulley adj ustably mounted on the stud, and a strand passing thereoverand connected to the opposite belts, substantially as described.

13. In a propelling device for cycles, the combination with a pulley on each end of a wheel-hub thereof, an idler-pulley on each side of the frame, a normally loose drivingbelt on each side of the frame passing over the pulleys on that side thereof, atransverse pulley mounted upon the cycle on one side of the line joining the driven and idler pulleys, a strand passing over the transverse pulley and having its opposite ends secured to one ply of each of the opposite belts, and means whereby the belts may be reciprocated, substantially as described.

14. In a cycle, the combination with a grooved pulley on each side of the hub of a wheel, a handle-bar governing the position of the said wheel and pivoted on a horizontal pivot and having a crank on each side of its pivoted center, means for locking the handlebar against movement on its horizontal pivot, pulleys mounted on the cranked portion of the handle-bar, whereby their position may be varied by turning the handle-bar upon its horizontal pivot, belts passing over the pulleyson the corresponding sides of the cycle, and means for imparting motion to the belts, substantially as described.

15. In a cycle, the combination with a grooved pulley on each side of the hub of a Wheel, a handle-bar governing the position of the said wheel and pivoted on a horizontal pivot and having a crank on each side of its pivoted center, means for locking the handlebar against movement on its horizontal pivot, diagonally-bored sleeves on the cranked portion of the handle-bar on each side of its pivoted center, pulleys mounted on each sleeve, whereby the position of the pulleys and their inclination may be varied, belts passing over the pulleys on each side of the cycle, and means for imparting motion of the belts, substantially as described.

16. A pulley having a series of pockets in its periphery, in combination with rollers contained in the pockets and moving in a path inclined rearwardly and inwardly, the axes of the rollers being parallel with the axis of the pulley, and a reciprocating belt passing over the pulley and imparting a continuous rotary motion thereto, substantially as described.

17. A pulley having a series of pockets in its periphery, in combination with springpressed rollers contained in the pockets and moving in a path inclined rearwardly and inwardly, the axes of the rollers being parallel with the axis of the pulley, and a reciprocating belt passing over the pulley and imparting a continuous rotary motion thereto, substantially as described.

18. In a device for transmitting power, the combination with a pulley having a series of pockets in its periphery, of rollers contained in the pockets and moving therein, the axes of the rollers being parallel with the axis of the pulley, means for moving the rollers outwardly in their pockets upon a motion of the belt in one direction and a reciprocating belt passing over the pulley and imparting a continuous rotary motion thereto, substantially as described.

19. In a propelling device for bicycles, the combination with two pulleys of a belt passing thereover, a lever reciprocating between the pulleys and to which the ends of the belt are attached at different points, whereby the belt may be reciprocated and tightened and loosened, and holders adapted to hold the beltlever in a position to slacken the belt when not in use, substantially as described.

20. In a propelling device for cycles, the combination with a pulley on each end of a wheel-hub thereof, an idler-pulley on each side of the frame, of a belt. on each side of the machine passing over the pulleys on that side, thereof, a pedal on each side of the machine, consisting of a foot-plate to which the upcoming end of the corresponding belt is at tached in front of the downcoming end of the same belt, a stirrup-piece attached to the plate, and a transverse pulley, and a strand passing over the transverse pulley and attached to the stirrup-piece of the opposite pedals, substantially as described.

21. The combination with a pulley having a series of grooves therein of different depths, of a hood therefor, having a channeled flange movable on the pulley in the line of its axis,

substantially as described.

22. A body-support, consisting of an arm secured at its rear end on the frame of a bicycle, its forward end in front of its point of attachment to the bicycle being adapted to support the body and to swing from side to side of the bicycle, substantially as described.

23. A body-support, consisting of an arm adapted to be pivoted near its rear end on the frame of a bicycle, its forward end in front of its pivotal point being adapted to support the body, and to swing from side to side of the bicycle, substantially as described.

24. The combination, with a bicycle, of a body-support consisting of an arm pivoted near its rear end to the frame of the bicycle, its forward end in front of its pivotal point being adapted to support the body and to swing from side to side of the bicycle, the said arm being connected to the steering-post of the bicycle, substantially as described.

25. The combination with an arm, of a seat mounted on one end thereof, the opposite end of the arm projecting forwardly to support the front of the body, the arm being pivoted between the seat and body-support whereby it may be swung transversely, substantially as described.

26. The combination with an arm pivoted to swing in a vertical plane, of a seat mounted thereon, the arm projecting forwardly to support the front of the body, substantially as described.

27. The combination with a rocker-arm, of a seat mounted 011 one end thereof, the opposite end of the arm projecting forwardly to support the front of the body, the arm being pivoted between the seat and body-support whereby itlmay swing transversely, substantially as described.

28. The combination with a rocker-arm, of a seat mounted on one end thereof, the opposite end of the arm projecting forwardly to support the front of the body, and means whereby the arm is pivoted, and wherebyits pivotal point may be shifted along its length, substantially as described.

29. The combination with a pivotally-supported rocker-arm, of a seat mounted on one end thereof, and a telescopic chest-supporting extension adjustably secured to the opposite end of the rocker-arm, substantially as described.

80. The combination, in a body-support for cyles, of a saddle-post, a rocker-arm adjustably pivoted thereto, a seat mounted on the rear end thereof, and a telescopic chest-supporting extension adjustably supported on the forward end of the rocker-arm, substantially as described.

31. The combination with a rocker-arm, of a seat mounted on one end thereof, the opposite end of the rocker-arm projecting forward to support the front of the body, the rocker-arm being pivotally supported between the seat and pad, and astop to limit the movement of the rocker-arm, substantially as described.

32. The combination in a cycle, of a looselymounted saddle-post, a rocker-arm pivoted thereon, a saddle supported on the rockerarm in the rear of its pivotal point, the opposite end of the rocker-arm forming a bodysnpport for the front of the body, and a connection between the steering-post of the cycle and the saddle-post, whereby the swinging of the rocker-arm from side to side will guide the cycle, substantially as described.

33. The combination in a cycle, with an arm, of a seat carried thereon, the forward end of the arm forming a body-support for the front of the body, the arm being vertically pivoted to the frame of the cycle, and a connection between the arm and steeringpost, whereby the cycle may be steered by the swinging of the arm from side to side,

substantially as described.

34:. The combination in a cycle, with an arm, of a seat carried thereon, the forward end of the arm forming a support for the front of the body, the arm being pivoted to the frame between the seat and body-support, and a connection between the arm and the steering-post, whereby the cycle may be' steered by the swinging of the arm from side to side on its pivot, substantially as described.

plow having side wings and means whereby l tom members of the frame, a support for the the spread of the wings may be varied when in use, substantially as described.

37. As an attachment for. bicycles, an airplow having side and top and bottom wings, and means whereby the spread of the wings may be varied by bending them behind their front edges, substantially as described.

88. In an air-plow, the combination with a double T-frame, 0f flexible side wings extending from the upright of the frame, top

and bottom wings secured to the top and botplow, a collar movable on the support, and toggle-arms connected to the rear ends of the wings and pivotedto the collar, whereby the spread of the wings may be varied, substantially as described.

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

FREDERICK P. BEMIS. Vitnesses:

HARRY S. WELCH, VERNON M. DUsEY.