US1526383A - Coaster-brake mechanism - Google Patents

Description

Feb. 17, 1925 C. B. SHWMONS COASTER BRAKE MECHANI SM Filed Deo. 27. 1922 Fll n 3 L.. H 40 i E Sheetg sheet E.

Feb, I7. 1925.

C. B. SIMMONS COASTER BRAKE ME CHANI SM Filed Dec. 27, 1922 2 Sheets-Sheet 2 A INVENTOR:

Patented Feb. 17, 1925.

UNITED STATES PATENT OFFICE.

CHARLES B. SIMMONS, F BRISTOL, CONNECTICUT, ASSIGNOR T0 THE NEW DEPAR- TUBE MANUFACTURING COMPANY,

0F CONNECTICUT.

OF BRISTOL, CONNECTICUT, .A CORPORATION COASTER-BRAKE MECHANISM.

Application led December 27, 1921. Serial No. 524,883.

To all whom t may concern:

Be it known that I, CHARLES B. SIMMoNs, a citizen of the United States, residing at Bristol, county of Hartford, State of Connecticut, have invented a certain new and useful Coaster-Brake Mechanism. of which the following is a full, clear, and exact description. 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, forming part of this specication.

My invention relates to coaster brake mechanism, my object being to provide a structure which can be so associated with the driving crank-shaft of a childs velocipede that bv mere instinctive foot movements of the ri er on the ordinary pedals the velocipede can be driven, can coast, and can be braked. To this end, and also to improve generally upon devices of this character, my invention consists in the various matters hereinafter described and claimed.

ln the accompanying drawings: Figure 1 is an eleva-tion chiefly in section; Figure 2 is a transverse sectional elevation of the hub shell on about the line 2-2 of Figure 1 looking in the direction of the arrows; Figure 3 is a transverse Sectional elevation on about the line 3-3 of Figure 1, looking in the direction of the arrows; Figure 4 is an elevation of the brake anchor when looking at it from its inner end, the axle or crank-shaft being also indicated in section; Figure 5 is a corresponding view looking at the brake anchor from its outer end, a portion of this brake anchor being shown in Section; Figure 6 is a face view of the brake arm: Figure 7 is ay top plan view thereof, the associated frame bar being shown in section; Figure 8 is a detail sectional elevation of the crank-shaft; Figure 9 is a face view of the locking washer: Figure 10 is a vie\vof the general character of Figure 1 but showing a modification; Figure 1l is a perspective of the brake anchor, shown in Figure 10; Figure 12 is a perspective showing the brake segments illustrated in Figure 10.

,Referring now more particularly to these drawings, 1 and 2 indicate the usual side bars of the front fork of a velocipede having the axle or crank-shaft 3 rotatably supported in the lower ends of said bars and ordina-ry pedal arms 4 ixedly attached to this crank-shaft. Spaced cones 5 and 6, about the crank-shaft, rotatably sup ort the hub 7 of the usual front, driving, roa wheel, which contacts with the roadway, this hub being preferably so supported throu h Series of balls 8 and also being provide with the usual openings 9 for the spokes of the wheel.

0n the interior of the hub shell is an annular flange 10 having clutch teeth 11 formed on its inner face, and upon the inner side of this clutch fiange 10 and within the hub and about the axle is a laterally shiftable clutch sleeve 12 having clutch teeth 13 and 14 formed in its respective ends, this clutch sleeve being also provided in its inner circumference with coarse threads 15 of rather steep pitch which receive the projecting ends of a driving pin 16 which is driven through the axle. Brake instrumentalities being provided upon the side of the Sleeve 12 opposite to the clutch 10 of the hub shell, it will be ap arent that u on forward pedalling the cran i-shaft 3 an its driving pin 16 are rotated forwardly and that consequent action of the pin 16 in the threads 15 serves to shift the connector Sleeve 12 into engagement with the clutch flange 10 of the hub shell, so that continued forward driving of the edals in the ordinary Way causes the hub and its attached Wheel to be driven forwardly and propel the veloci` perle; should the rider cease pedalling and hold the pedals stationar the pedal Shaft 3 and its-pin 16 will 'be held stationary while the hub, rotating under the momentum of the velocipede, will continue to move forwardly in the well-known coasting, the rotating hub shell carrying the connector sleeve 12 with it at least until the teeth 11 and 13 are disengaged, and this rotary movement, thus turning the connector 12 with relation to the now stationary driving pin 16, causes this connector to shift laterally out of engagement with the hub clutch v10; and a backward rocking of the pedal arms 4 produces a corresponding backward rocking of the crank-shaft 3 and its pin 16 so that the threaded connection between this pin and the clutch sleeve 12 causes this clutch sleeve to shift into connection with the brake instrumentalities and thus permits backward pressure upon the pedals to apply the brake.

Considering now these brake instrumentalities, the cone 6 which has the crankshaft 3 passing through its central aperture is not only provided with a raceway 17 for the balls 8 but also has an inwardly projecting sleeve 18 of less diameter than the body of the cone so that this cone body presents a shoulder or abutment 19 at that end of the sleeve 18 adjacent to such body of the cone, and this cone also, at its outer end, has a reduced, annular, threaded boss 20 Whose interior opening is enlarged, as at 21. for a distance from the outer end of the cone member so that a shoulder or abutment 22 is produced. This cone 6 anchors the brake elements, which are here shown as alternating discs 23 and 24 (a well known structure), the dises 23 being of less diameter than is the interior diameter of the hub and having interior lingers 25 which are slidably received in slots 26 cut diametre cally through the sleeve 18 of the brake holder while the discs 24 are apertured and have slightly greater interior diameter than is the exterior diameter of the sleeve 18 and have peripheral fingers 27 which are slidably received in longitudinal grooves 2S cut in the interior of the hub shell, the disc 29 at the end adjacent the connector sleeve 12 being somewhat thicker than its fellows and having its outer face provided 'with clutch teeth 30 which cooperate with the clutch teeth 14 upon the connector 12. The brake disc at the end of the series opposita` to what may be termed the actuating dise 29 abuts against the before mentioned shoulder 19. Thus, as these brake discs can move `laterally with respect to each other and to their supporting members but one series of them is, by its fingers 25, noni-otatably held upon the sleeve 18 while thc series of alternating discs, 24, is, by its fingers 27 held against rotation with respect to the hub shell, it is apparent that when the connector sleeve 12 is, as previously explained, forcibly pressed against the disc 29 all of the brake discs are forced against each other and, if the cone 6 be anchored against rotation, the hub will be braked, such braking pressure being relie ved as soon as the pedals are again moved forwardly. By providing the sleeve 18 andsimply diametrically slotting it as above described I am able to inexplensively but effectively provide for the ho ding connection between the brake discs and the brake-anchoring cone.

To afford abutment against outward movement of this brake anchor 6 I cut a peripheral channel 31 about the crank-shaft- 3 and place substantially semi-circular pieces 32 of wire in such channel, the cross section of these wire pieces being so great that the wire projects beyond the periphery of the crank-shaft, and I then slip the brakeanchoring cone over these wire pieces so that the before mentioned shoulder 22 abuts against the holding pieces 32 which are themselves held in the channel 31 against longitudinal movement and, as these holding pieces are received inthe before mentioned aperture 21 of the brake anchor, these cannot escape from the groove 31, although these holding pieces 32 with the shaft 3 and the brake anchor 6 can be quickly and easily disassembled (as well as assembled) by merely sliding the brake anchor along the crankshaft.

'Io anchor the brake anchor 6 against rotation-about the hub shell I provide a brake-arm or anchoring-arm 33 whose enlarged lower portion has an aperture 34 through which the before mentioned boss 2O passes, this enlarged lower portion also having projections 35 punched up on its inner face to enter corresponding recesses 36 formed in the o-uter face of the body portion of the cone 6, while at the up er end of the arm 33 I form a clamp soc et 37 adapted to receive the frame bar 2 of the velocipede and to have screwed thereto the cooperating clamp piece 38. A nut 39 screwed upon the oss 20 securely holds the anchoring-arm in engagement with the brake anchor 6. The frame bar 2 with its attached bearing 4() is upon the outer side of the cone 6, while the pedal arm is securely fastened to the crank-shaft at the outer side of the frame bar 2, any desired amount of space between' the pedal arm and the bearing 40 being preferably taken up by a washer 41.

The cone 5 is a separate piece threaded onto the axle 3, and I conveniently provide for the co-operating thread 42 of the axle by upsetting the axle at this portion (as by subjecting the axle to heavy swaging action upon opposite sides) so that at other opposite sides 43 of the axle the metal is caused to project beyond the perimeter of the body of the axle and the threads are cut in, this protruded portion. The lockwasher 44, placed as usual at the outer side of the cone 5, has a central aperture 45 whose major portion is curved on about the diameter of the body portion of the axle while smaller portions 46 of this aperture are curved upon the diameter of the enlarged, threa ed axle ortion 42, so that the protruded parts o the axle not only afford material for the thread 42 but also engaging position.

present projections which are engaged by the washer 44 and thus prevent the washer from turning when the lock nut 47 is being screwed into lace. At the outer side of the lock nut 1s the frame bar '1 with itsy bearing (similar to the bearing shown in connection with the frame bar 2) while outside of this is the pedal arm fastened to the axle 3 in the usual way, a distancewasher 48 being fitted between the frame bar 1 and the pedalarm. All of the parts are securely held properly assembled and upon the crank-shaft, and the crank-shaft is securely held in the velocipede frame, being attachable thereto as a unit-handling structure.

It will be noted that b utilizing a pin 16 (with its ends slabbe olf as at 49 to adapt them to the threads 15), utillzing the abutment pieces 32 received in a groove about the axle, and upsettin that portion of the axle in which the t reads 42 are formed, I am enabled to use for the axle material of merely the diameter major portion of the axle, thus minimizing the expense for the axle material.

My lag spring 50, whose general function is well understood in this art, consists of a split ring of spring metal received in a groove 51 around the periphery of the connector 12, an outwardl projecting hump 52 being formed in t e spring at about the point diametrically opposite the space between the spring ends, and the necessary holding of the lagspring is obtained by having this hump Vreceived in one of the before mentioned longitudinal slots 28 of the hub shell in which the fingers of the brake discs 24 are also received. This connection of the lag spring to the hub not only enables this spring to perform all of the usual functions of such an element but also causes the connector, during the coasting action of the wheel, to shift into engagement with the brake actuator, so that when it is desired to brake, the necessary thrust of the connector is brought about at once and without the loss of effective .motion heretofore utilized in bringing the connector from a neutral position into brake- Iu the modification shown in Figures 10, 11, and 12, the laterally shiftable connector 120 is tapered upon opposite sides of its center to produce clutch faces 121 and 122, the former of which cooperates with a correspondinglyv tapered clutch socket 71 formed in the interior of the hub shell 70, while upon its side toward the brake this laterally shiftable connector has a sleeve portion 123 of reduced diameter extendin from the lower end of the taperedv clutcli portion 122. The inwardly projecting sleeve 180 of the brake anchor 60 is thickened at its portion, 181, near the ball raceA of the part, 182, of the piece and is tapered, as at 183, inwardly toward the terminal, cylindrical part 184. In the slots 260 of this sleeve 180 are slidable lugs 250 of segmental brake shoes 230 which surround the sleeves 180 and 123 and produce a split brake cylinder to cooperate with. the interior braking surface 72 of the hub shell, these brake segments being held together by a surrounding split, resilient ring 231. When the laterally shiftable connector 120 is shifted toward the left (as the parts are here shown) by the backward rocking of crank-shaft 30 the brake segments 230 are forced upon the tapered surfaces 122 and 183 so that as the connector 120 approaches the brake anchor the segments 23() of the split brake cylinder are spread outwardly into braking contact with the hub the resilient ring 231 serving to retract these brake segments when braking pressure is relieved. The pressure of the brake segments upon the sleeve123 serves the purpose of the lag spring previously described. To facilitate the action of the tapering sur faces 122 and 183 I prefer to correspondingly taper the ends of the brake segments as at 232 and 233. A split wire ring 61 received in a peripheral groove at the inner end of the sleeve 180 prevents accidental separation of the brake segments 230 from the brake anchor 60.

Also in this modification I show the brake anchor 60 abutting against a sleeve 310 which surrounds the crank-shaft and has at its inner end an annular boss 312. The ball bearings 400, about the crank-shaft and received in the frame bars of the velocipede are, respectively, about this sleeve 310 and a corres ondin sleeve 313 near the other end of the cran -shaft The brake arm 330 has its lower portion fitting between the body portion of the brake anchor 60 and the inner end of the sleeve 310, and a reduced projection 62 of the brake anchor, which is made noncircular b having straight portions 63 at its sides is is well understood in this art), is received in a corresponding openingr in the lower end of the brake arm. `The brake arm is conveniently secured to the frame bar 20 by a metal strap 331 which encircles that bar and passes through an eye formed by a strip 332 punched up from the material of the arm, and as this eyestrip abuts against the frame bar the necessitv of bending the arm 330 to bring it against the bar is avoided.

I claim 1. In a velocipede or the like, the combination of a rotatable axle, a driving road wheel having its hub about said axle and being rotatable inde endently of the same, means whereby sald hub is driven when said axle is rotated in one direction, but said hub can rotate independently of said axle,

and means actuated by said axle whereby said hub is braked when said axle is moved in the opposite direction.

2. A coaster brake having, in combina* tion, a driven member, a rotatable axle within the same, and means whereby upon rotation of said axle in one direction said driven member is driven, but said driven member can rotate in such driving direction independently of said axle, and upon different movement of said axle said driven member is bral'ed.

3. A coaster brake. having, in combination, a driven member, a rotatable axle within the driven member, and suitable connections between the driven member and axle acting to connect the driven member and axle upon rotation of the axle in one d1- rection with relation to the driven member, to disconnect the driven member and axle upon stopping the rotation of the axle during the continued rotation of the driven member, and to stop the rotation of the driven member u on reversing the rotation of the axle wit relation to the driven member.

4. A coaster brake having, in combination, a driven member, a rotatable axle extending through the driven member with the ends of the axle projecting beyond the ends of the driven member, suitable connections between ,the driven member and axle acting to connect the driven member and axle upon rotation of the axle in one direction with relation to the driven member, to disconnect the driven member and axle upon stopping the rotation of the axle during the continued rotation of the driven member, and to stop the rotation of the driven member upon reversing the rotation of the axle with relation to the driven member and drivingdevices connected with both ends of the axle.

5. In a coaster brake in combination, a driven member, a rotatable axle, a shiftable connector, means for driving said connector upon rotation of said axle, and means Whereby upon relative rotation between said axle and said driven member said connector is shifted into and out of driving relationship with said driven member, but said driven member can rotate independently of said axle, and upon movement of said axle, other than for driving, said connector serves to brake said driven member.

G, A coaster brake having, in combination, a rotatable axle, a driving clutch member mounted on the axle and connected to rotate therewith, a co-operatin driven clutch member surrounding sai driving clutch member and axle, and means acting upon rotation of the axle in one direction to shift the driving clutch member into clutching engagement with the driven clutch member, acting upon stopping the rotation of the axle with relation to the driven clutch member to shift the driving clutch member out of clutching engagement with the driven clutch member, and acting upon reversing the rotation of the axle with relation to the driven clutch member to further shift the. driving clutch member away from the driven clutch member, and means acting upon such further shifting movement of the driving clutch member to cooperate with the driving clutch member to stop the rotation of the driven clutch member.

7. A coaster brake having, in combination, a driven member having a clutch face on the interior thereof, an axle extending through the driven member, a clutch member mounted on the axle and havinff a clutch face adapted to co-operate with tlie clutch face on the driven member to connect the driven member and axle when these faces are in engagement, threaded operating oonnection between said axle and said clutch member, and means cooperating with. said threaded connection to shift the clutch member in a direction to engage said clutch faz es upon rotation of the axle in one direction With relation to the driven member and to shift the clutch member in the opposite direction to disengage said clutch faces upon stopping the rotation of the axle during the continued rotation of the driven member.

8. A coaster brake having, in combination. a driven member having a/clutch face on the interior thereof, an axle extending through the driven member having screw threads thereon, a clutch member mounted on the axle having screw threads engaging said screw threads on the axle and having a clutch face adapted to co-operate with the clutch face on the driven member to connect the driven member and axle when these faces are in engagement, and means cooperating with said screw threads of the clutch member and axle to shift the clutch member in a direction to engage said clutch faces upon rotation of the axle in one direction with relation to thedriven member and to shift the clutch member in the opposite direction to disengage said clutch faces upon stopping the rotation of the axle during the continued rotation of the driven member.

9. In aI wheel vehicle, the combination of a driven member haviner a hub, a rotatable axle passing through the hub, means for supporting the hub and axle independently of each other, mechanism connected with the axle for connectingthe axle with and disconnecting it from the hub, and a brake for the hub actuated by the axle.

10. A coaster brake having, in combination, a hub, a rotatable axle mounted within the hub and havin at least one end extending beyond the hu a bearing surrounding and supporting said axle, driving means connected with said end of the axle, and suitable connections between the hub and axle controllable by the axle for connecting and disconnecting the hub and axle.

11. In a velocipede or the like, the combination with the frame, the driving road wheel, and the pedals at said driving wheel, of a brake, means for anchoring said brake to Vsaid frame, and means for actuating said brake through the instrumentality of said pedals.

12. In a velocipede or the like, the combination with the frame, a pedal shaft, and a driving road wheel about said shaft, of a f brake, means for anchoringr the same to said frame, and means for actuating said brake through the instrumentality of said pedal shaft,

13. In a velocipede or the like, the combination with the frame, the driving road wheel, and the pedals at said` driving wheel, of a brake, means for anchoring said brake to said frame means whereby said wheel can be driven upon actuation of said pedals in one direction, but said wheel Ican rotate free of said pedals, and means whereby a different actuation of said pedals applies said brake.

14. In a velocipede or the like, the combination with the frame, a pedal shaft. and a driving road wheel about said pedal shaft` of a brake, means for anchoring said brake to said frame, and operative connection between said pedal shaft and said wheel whereby when said pedal shaft is rotated in one direction said wheel is driven, but said wheel can rotate inde endently of said pedal shaft, and when saidp pedal shaftl is rotated in the opposite direction said brake is applied to said wheel.

15. In a velocipede or the like, the combination with the frame including the fork t ereof for the drivin road wheel, the pedal shaft supported in said fork, and the driving wheel having its hub about said pedal shaft, of a brake anchor about said pedal shaft, means for anchoring said brake, anchor to said fork, a brakeadapted to be anchored by said brake anchor, and operative connection between said pedal shaft and said hub and between said pedal shaft and said brake whereby rotation of said pedal shaft in one direction effects driving of said hub but said hub can rotate independently of said pedal shaft, and rotation of said pedal shaft in the opposite direction applies said brake to said hub.

16. In a velocipede or the like, the combination with the pedal crank-shaft having means for connection with the pedals, of the driving road wheel with its hub about Said crankshaft, an anchored brake cooperating with said wheel, a shiftable connector, means whereby said connector can having its hub drive said wheel when in one of its shifted positions and can apply said brake when in another thereof, and means whereby said connector is so'shifted upon such movements of saidcrank-shaft.

l'h?. In a velocipede or the like, the combination with the frame, the driving pedal shaft supported thereby, and the drlvin road wheel having its hub about said eda shaft, of a brake for said hub, a shi able connector adapted in one position to drive said hub and in another to apply said brake, and threaded operating connection between sald pedal shaft and said connector.

18. In a velocipede or the like1 the combination with the frame, a pedal shaft supported thereby and having means for con nection with the pedals. a driving road wheel rotatably supported about said pedal shaft, a brake anchor about said pedal shaft and through which the pedal shaft extends, a brake for said hub and held by said brake anchor, and means whereby when said pedal shaft is actuated` in one direction said wheel is driven and upon different actuation of said pedal shaft said brake is operated.

19. In a velocipede or the like, the`combination with the frame, the pedal shaft supported thereby, and the driving road wheel about said pedal shaft, of spaced bearing cones about said pedal shaft for supporting said hub, means for anchoring one of said cones to said frame, a brake anchored by said anchored cone, and means whereby upon actuation of said pedal shaft in one direction said wheel is driven and upon different actuation of said pedal shaft said brake is applied.

20. In a velocipede or the like. the combination with the frame, the pedal shaft supported thereby, and the driving' road wheel about said pedal shaft, of a brake anchor about said pedal shaft and through which said pedal shaft passes, a brake for said hub cooperatingr with said anchor, a shiftable connector adapted in one position to drive said hub and in another position to apply said brake, and a connector-shifting element cooperating with said connector and carried by said pedal shaft.

21. In a brake mechanism, a brake anchor havingr an opening therethrough to produce a sleeve, said sleeve havinar slots in opposite points to each other and passing entirely through the sleeve, and brake elements received in said slots.

22. In a brake mechanism. a brake anchor having a projecting boss, brake elements associated with said brake anchor, a brake arm connected to said anchor and about said boss, and a locking member for said arm and secured upon said boss.

23. In a brake mechanism. a shaft, a brake anchor about the same and provided with an opening which receives said shaft, said lio anchor also having an enlarged opening at one end and communicating with the opening which receives said shaft, whereby a shoulder is produced upon said anchor, said shaft having a reduced portion whereby a shoulder is presented, and a separable stop element upon said shaft and in said enlarged opening and between the said shoulders of said anchor and said shaft. y

24. In a brake mechanism, a brake anchor having an opening therethrough and being provided at one end with an enlarged recess communicating with said opening, whereby a shoulder is produced, a shaft extending through said opening and provided with a circumferential groove, and segmental stop pieces in said groove and said recess and between said shoulders of said anchor and said shaft.

25. In a device of the character indicated, an axle having a threaded enlarged portion, a threaded cone cooperating with the same, and a washer having an opening a portion of which is substantially the size of the body plortion of the axle while another portion t ereof is of the size of the enlarged axle portion.

26. In a device of the character indicated, a hub having a slot therein, a brake element cooperating with said hub and having a portion `extenlding into said slot, a connector cooperating with said brake element, and a lag device for said connector and having a portion received in said slot.

27. In a device of the character indicated,

a lag spring comprising a member of resilicnt material havin a projection formed in one portion thereo and clamping arms on opposite sides` of said projection.

28. In a coaster brake mechanism, a power member` a rotatable hub, a brake therefor, a shiftable connector, shifting connection bctween said power member and said connector, and a lag device operating upon said connector and engaged by said hub to rotate with the latter.

29. In a coaster brake mechanism, a power member. a rotatable hub, a brake therefor, a shiftable connector, shifting connection between said power member and said connector, and a lag device yieldingly engaging said connector and engaged by said hub to be rotated by the latter.

30. The combination with a vehicle frame, of a coaster brake mechanism comprising` a rotatable pedal shaft, a driving road wheel having its hub about said shaft and rotatable with respect thereto, a brake within said road wheel hub and acting thereon, means for anchoring said brake to said frame, and means within said hub whereby upon rotation of said shaft in one direction said hub is driven, upon cessation of said rotation of said shaft said hub can continue to rotate independently of said shaft, and upon opposite rotation of said shaft said brake is applied.

In testimony whereof I hereunto atiix my signature.

CHARLES B. SIMNIONS.

anchor also having an enlarged opening at one end and communicating with the opening which receives said shaft, whereby a shoulder is produced upon said anchor, said shaft having a reduced portion whereby a shoulder is presented, and a separable stop element upon said shaft and in said enlarged opening and between the said shoulders of said anchor and said shaft.

24. In a brake mechanism, a brake anchor having an opening therethrough and being provided at one end with an enlarged recess communicating with said opening, whereby a shoulder is produced, a shaft extending through said opening and rovided with a circumferential groove, an segmental stop pieces in said groove and said recess and between said shoulders of said anchor and said shaft.

25. In a device of the character indicated, an axle having a threaded enlarged portion, a threaded cone cooperating with the same, and a washer having an opening a portion of which is substantially the size of the body ortion of the axle while another portion t ereof is of the size of the enlarged axle portion.

26. In a device of the character indicated, a hub having a slot therein, a brake element cooperating with said hub and having a portion -extending into said slot, a connector cooperating with said brake element, and a lag device for said connector and having a portion received in said slot.

27. In a device of the character indicated,

a lag spring comprising a member of resilient material having a projection formed in one portion thereo and clamping arms on opposite sides of said projection.

28. In a coaster brake mechanism, a power member, a rotatable hub, a brake therefor, a shift-able connector, shifting connection between said power member and said connector, and a lag device operating upon said con` nector and engaged by said hub to rotate with the latter.

29. In a coaster brake mechanism, a power member` a rotatable hub, a brake therefor, a shiftable connector, shifting connection be tween said power member and said connector, and a lag device yieldingly engaging said connector and engaged by said hub to be rotated by the latter.

30. The combination with a vehicle frame, of a coaster brake mechanism comprising a rotatable pedal shaft, a driving road wheel having its hub about said shaft and rotatable with respect thereto, a brake within said road wheel hub and acting thereon` means for anchoring said brake to said frame, and means within said hub whereby upon rotation of said shaft in one direction said hub is driven, upon cessation of said rotation of said shaft said hub can continue to rotate independently of said shaft, and upon opposite rotation of said shaft said brake is applied.

In testimony whereof I hereunto aix my signature.

CHARLES B. SIMMONS.

Certicate of Correction.

kIt is hereby certified that in Letters Patent No. 1'-,526,`8", February 17 ,17, `1925, upon the application of Charles B. Simmons, of Bristol, Connecticut, foren@ improvement in Coaster-Brake Mechanism, an 'error 4a pears 1n the printed ifcation 0f filin said Letters requiring correction as follows: In the hea ingjofthe drawing, application, for Dec. 27, 1922 read-Dec. 2?', 1921,v` and that the I atent should be read with this correction therein that the same may conform to the record of the case in the Patent Giice. Signed and sealed this 24th day of March, A. D. 1925.

[SEAL] KARL FENNING,

p ,Acting Gommz'ssioner of Patents.

v Certiiioate of Correction.

`It is heebycertified that in Letters Patent No. `1'?,526,`385"4gianted February 17h, 1925, upon the application of Charles B. Simmons, of Bristol, Connecticut, foi* an' improvement iny Coaster-Brake Mechanism, an 'error 4appears in the printed io'ation requiring correction as follows: In the hezaidng ofthe drawin of lin application, for pDea 27, 1922 read Dec. 27, 1.921," and tht the said Letters atent should be read with this correction therein that the same may leonform to the record of the case in the Patent Oce. t t

Signedand thisy 24th day of March, A. D. 1925.

[mn] y FENNING,

v 00m/miami' of Patents.

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