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Publication numberUS388048 A
Publication typeGrant
Publication dateAug 21, 1888
Publication numberUS 388048 A, US 388048A, US-A-388048, US388048 A, US388048A
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Iybk johnson and akdeew fyebeeg
US 388048 A
Abstract  available in
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Description  (OCR text may contain errors)

(No Model.)


lhvTTnn STeTns PATnNT Ormes.



SPECFICATXON forming part of Letters Patent No. 388,048, dated August 2l, 1888.

(No model.)

T all whom, :it may conceive.-

Be it known that we, ivnn JOHNSON and ANDREW Freizone, beth of Worcester, in the county of forccster and State of Massachu setts, have invented certain new and useful Improvements in Velocipedes; and we do hereby declare that the loilowin g is a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming a ro part of this specification, and in which- Figures 1, 2, and 3 represent a plan view, front View, and side view, respectively, of so much of a bicycle as is necessary to ilh'istrate our improvements. All the following figures I5 are upon an enlarged scale. Fig. t is a Vertr callongitudiualsection on line a., Fig. l,through the inner end of one ot' the i`oot-treadles and upper end of its supporting crank-arm. Fig. 5 is a similar section on line b ofthe outer end 2o of one oi' the foot-treadles. Fig. 6 is a cross or transverse section on line c through said foottreadle. 7 is a cross or transverse section on line d through the trcadle-bolt, looking toward the inner end of the treadlc. Fig. S is a similar section ou line c through said inner end of the trefidle and its bolt, showing a modification in the construction, hereinafter described. Figs. 9 and l() are a detached front and edge View, respectively, ol' a flanged plate interposed between the craulrarm and foottreadle, as and for the purpose also hcreinafter described. Fig. 'll is an end View of the cranlcarin bearing, looking inthe direction of arrow f, Fig. 2,with the nut removed to more fullyillustrate ourimprovemcnt thereon, Fie. l2 is a detached side view ol" our improved lock-washer, hereinafter described. Fi g. 13 is a vertical longitudinal section on line g, Fig. 1l, through that portion o1" the eranlclever 40 bearing to which our improvements relate.

Fig. 14; is a similar section showing a modification in the construction of said lever-bear ing, hereinafter described; and Fig. l5 is a side View ot' our aforesaid improved lockwasher, showing a modification in its construction, also hereinafter described.

Our invention is more especially designed for bicycles, but is also applicable to other forms of vehicles, and it consists ot' improve ments upon the foot-trouille crank-bearings, as

hereinafter more fully set forth.

In order that others may fully understand the nature and purpose ot" our said improvements, we will now proceed to describe the same in detail in connection with such old parts of a bicycle as are combined and coact therewith.

In the drawings, the part A represents one of the usual crank-arms for in'xparting power to the driving-wheels of the bicycle, B the 6o hub or bearing thereof, and O the foot-treadle mounted on the upper end oi' said crank-arm- Our improvements upon the bicycle are mainly upon the treadle construction, the improvement upon the crank-arm bearing being simply a duplication ot one part of the treadle improvements with slight changes therein to adapt the same to said different application, as hereinafter specified.

Said improvements consist of means for im- 7o parting a rotary spring motion to the treadle to bring it back into its normal position after the footpressure is released therefrom` for controlling the rotary movements of' the treadle, and for excluding dust around the inner end thereof, also, for locking its outer not, washer, and bearing from rotary and longitudinal movement upon the central bolt, and for securing the usual foot cushions or pads in position. The aforesaid rotary bach-spring mo- 8o tion is imparted to the treadle by means of a suitable spring, 7L, disposed in this instance within a circular peripheral groove, i, formed around the inner end of the usual central bolt,

j, under the enlarged soclreted end. 7s of the S5 central longitudinal trcadle bearing orslecve,

k. Said spring is preferably arranged in the above position and made in the form of aspiral coiled around the boltj and its two ends connected, respectively, with the sleeve 7c and 9o said boltj, as shown in Fig. et. AWe do not limit ourselves, however, to the above arrangement and construction, as the same result may be efected in various other similar ways. An illustration of one other way is indicated in Fig. 8, which represents a coiled instead of a spiral spring over the central bolt, j.

By either of the above-described constructions it is obvious that in operating the bicycle when the treadle is rotated on its bearing, roo4 as indicated by dotted lines in Fig. 3, upon removing the foot, and thereby releasing the pressure therefrom, it is immediately sprung back by the spring into its normal position.

(Shown by full lines.) Therefore it is always' in convenient position for the rider to apply his foot thereto.

The rotary movements of the treadle are controlled in both directions by the lateral projection or footgnard It"l thereof striking against the shoulder l or Z, as the case may be, the shoulderl serving to stop and hold the treadle at the proper place when sprung back into its normal position by the spring 7L, as previously described, and the shoulder Z to control the opposite rotary motion of said treadle, produced by the foot of the rider in operating the machine. The aforesaid shoulders project laterally from a plate or washer, m, interposed between the inner end of the treadle and the crank-arm A. In this instance said plate is made separate from the bolt, being provided with a central opening, m', to receive said bolt, and with a radial slot, m2, in which a iiange or key, ni, on the bolt fits to hold Said plate from turning thereon.

l The plate is also provided with a lateral circular iiange, m, which fits over the inner end of the treadle-sleeve 7n, and thus serves as a dust excluder or guard over said end, as well as the purpose previously described. The shoulders Z l are preferably formed by extending a portion of said circular flange m out longer, as shown at m5 in Figs. 9 and l0; but, if desired, the plate or washer may be made without either of the aforesaid flanges in" or m5, and the shoulders l Z produced by fastening pins laterally therein, or in any other similar manner. If preferred, t-he plate or washer m may be formed upon or integral with bolt j, instead of separately, and fastened in position thereon, as previously specified.

Our improvement upon the outer end of the treadle G consists in intcrposing a lockwasher, n, between the usual lock-nut, o, and the bearing p, upon which the outer end ofthe trcadle turns, said lock-washer being provided with a series of peripheral. notches, il, and serving the purpose of locking thc nut o and bearing from rotary and longitudinal movement upon the central bolt, j, which result is effected by forming a longitudinal slot or groove, q, inthe outer end of said bolt] and an internal flange, r, on the lock-washer n, which fits into said slot q when the parts are fitted together. The washer is also locked to the bearin g p by means of a pin, s, or its equivalent, projecting longitudinally from the outer side of said bearing, which engages with one or another of said series of notches t, formed around the periphery of the washer, as shown in the drawings.

By the above construction it will be apparent that when the bearing p, washer a, and nut o are adjusted in position, as shown in Fig. 5, all of said parts are effectually locked in said position against any rotary or longitudinal v movement upon the bolt j, the bearing and washer being locked positivelyin the manner above described and. the nut by frictional contact with said rigidly-locked washer. By said construction it is obvious that the nut cannot by any ordinary usage become loose and fall off, as is usually the case'when a loose washer is employed between said nut and the bearing.

lVe reserve the right to use our aforesaid lock device on other parts of a bicycle, as well as in any other similar places to which it is adapted.

In the drawings we have. shown one other application thereof to the crank-arm bearing or.hub B for a likepurpose to that previously described, and the same letters of reference are used to designate the several parts as in the former instance.

Although it is preferable to make the lockwasher with peripheral notches, as and for the purpose set forth, an equivalent result maybe obtained by forming a series of holes around said washer close to its periphery to receive` the pin s, and we therefore do not limit ourselves to said notches. The foot-treadle pads are held in position in the foot-treadle frame k by making said frame with the two longitudinal slots or grooves U U to receive the usual rubber pads, o o, and with the inwardlyturned flanges e o o fo for holding said pads in position after being fitted in said grooves.

To admit of the above adjustment, the pads are provided with longitudinal side grooves, e2 e2, corresponding in shape to the aforesaid flanges e, as best shown in Figs. 3 and G. In fitting the pads to the treadle they are slipped cndwisc into their respect-ive grooves U, and when thus fitted are securely held in position without the use of other fastenings, thus, as will be seen, producing a simple as well as effective means of fastening said pads to the treadle.

-We are aware of the United States reissue patent to I?. Lallement for improvement in IOO velocipedes, No. 7,972, dated November 27,

187 7, which shows the foottreadles provided with counter-wcighfs for accomplishing the same purpose as the spring 71l in our improved velocipede, and we therefore make no claim thereto, broadly.

'I-Iaving described our invention, what we claim as new, and desire to secure by Letters Patent, is-

l. In a velocipede, the combination of the rotafable foottreadle frame thereof and the central pivot bolt or shaft upon which it turns with a suitable spring, h, fitted over said shaft, attached at one end to the shaft and at its other end to the frame, and the plate or washer m, interposed between said treadle-f rame and the crank-arm, and having the shoulders Z Z', or their equivalents, adapted to strike against the foot-guard k2, substantially as and for the purpose set forth.

2. The combination of the crank-arm A, treadle-bolt j, fastened to said arm and having a peripheral groove at its inner end, foottreadle C, made with the hollow sleeve 7c and having the laterally-projecting flange t2 at the inner end thereof, spring 7L, disposed within the aforesaid peripheral groove and having` its ends connected, respectively, with said foottreadle and bolt j, and plate m, having the shoulders Z l so arranged that the flange k`l will come in contact therewith when the foottreadle is rotated, substantially as and for the purpose set forth.

3. The combination of the crank-arm A, treadle-boltj, fastened to said arm, provided with the key in" near the arm, and having the peripheral groove 'i at its inner end, foottreadle C, made with the hollow sleeve k and having the lateral projecting iiange k2 at its inner end, spring h,disposed within the aforesaid peripheral groove around bolt j and having its ends connected, respectively, with the foot-treadle and said bolt, and plate an, arranged between the crank-arm and treadle, having the circular flange fm," fitting over the end of the treadle-sleeve, also having the shoulders l Z, and so arranged that the iiange Yr Will come in Contact therewith when the treadle is rotated, substantially as and for the purposes set forth.`

4. The combination ofthe Crank -arin A, treadle-bolt j, provided with the key m3, and foot-treadlo C, made with the central sleeve,

k, and having the lateral projection k2 at its inner end,with the plate m, having the central opening, m', radial Slot mi, and lateral iiange mi, and interposed between the c1'ank-ar1n and treadle, sulostantiallyas and for the purposes set forth.

5. In a velooipede, a dustguard interposed between the crank-arm and foot-treadle, consisting of a plate, m, formed upon or fastened to the treadle-bolt, andhaving a laterallypro jeoting rirn or ilange, m, extending over the inner end of the treadle-sleeve, substantially as set forth.

6. The Combination of the treadle C, boltj, having the longitudinal slot q in its outerend, the usual loelonnt7 o, and the bearingp, or its equivalent, having the longitudinal projection or pi n s, with the Washer n, having the internal flange, r, and peripheral notches t, or their equivalents, substantially as and for the purpose set forth.




Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4809563 *Oct 21, 1987Mar 7, 1989Duane LoppnowBicycle pedal
Cooperative ClassificationB62M3/08