US474400A

US474400A - Bicycle

Info

Publication number: US474400A
Authority: US
Publication date: 1892-05-10
Anticipated expiration: 1909-05-10

Description

L MW e h S m e h S 2 N N K O M H T m ,d 0 M O m BICYCLE.

No. 474,400. Patented May 10, 1892.

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(No Model.) 2 Sheets-Sheet 2.

T. E. MOKENNA.

BICYCLE.

No. 474,400. Patented May 10,1892.

Q Vi/tmeo'cey %@J@ fTKW IGMMW WWW, 4022 74 W UNITED STATES THOMAS E. MOKENNA, OF

PATENT OFFIcE.

NEWARK, NEIV JERSEY.

BICYCLE.

SPECIFICATION forming part of Letters Patent No. 474,400, dated May 10, 1892.

Application filed January 23, 1892. Serial No. 418,995. (No model.)

To all whom it may concern.-

Be it known that I, THOMAS E. MOKENNA, a citizen of the United States, and a resident of Newark, in the county of Essex and State of New Jersey, have invented certain new and useful Improvements in Bicycles, of which the following is a specification.

My invention relates to bicycles; and it consists of combinations of devices hereinafter described, and more particularly pointed out in the appended claims.

One form of my invention is shown in the accompanying drawings, forming part of this specification, in which Figure 1 is a side elevation of a common form of bicycle with my invention attached. Fig. 2 is a view, partly in section, of supplemental pedal mechanism; and Fig. 3 is a detail view.

Heretofore a chair for a child has been placed upon some bicycles, said chair being supported from the tube supporting the usual saddle. There are objections to such construction, among them the danger of breaking the supporting-rod, with resulting injury, mayhap fatal, to the child; also, the child is cramped and gets tired.

Among the objects of my invention are the safety and the healthy exercise of the child.

Referring to the drawings, references A B mark the front and rear wheels; U, the framing connecting said wheels, in this instance the so-called diamond frame; D, the backbone of said frame; E, the piece supporting the goose-neck F, on which the saddle G is mounted; H, the usual sprocket-wheel, to the axle of which the pedals I I are attached, as usual; K, the sprocket-chain connecting the wheel Hwith the sprocket-wheelL on the axle of wheel B; M, the usual steering-head, to which usual handle-bars N N are attached.

The parts thus far described are or may be of old construction.

In addition to the means for supporting the saddle G, the piece E shown is provded with two perforations, as 1 2, at about right angles to the tubular part in which the stem of goose-neck F is supported. In said perforations 1 2 are fitted the bars 3 4, which are held in place by screws 5 6, working in screwthreaded holes at right angles to said bars 3 4. Screws 5 6 may be replaced by the usual polygonal-headed screw-bolts. By these means bars 3, 4 may be adjusted or moved longitudinally. Bars 3 4 carry a supporting block 7 at their forward ends, the bars entering sockets or perforations 8 9 and being held therein by suitable screws or screwbolts, as 10 11. Said block 7 is provided with a hole 12, into which the goose-neck 13 fits, and wherein it is held by the screw-bolt 14, which works in a screw-threaded hole in piece 7. The goose-neck 13 carries a saddle, as 15, for the child, the said saddle being of any usual or desirable construction. The piece '7 may be provided with a hole 16, into which the supporting-rod 17 fits and wherein it is held by a screw-bolt 18, working in a screw-threaded hole communicating with the hole 16. Said rod 17 is adapted to rest on and be supported by the backbone D, as by a shoe 19, concaved to fit said part D. By the above means the childs saddle may be adjusted as to height and forward and backward relatively to the handle-barMand be rigidly held in place.

In order to exercise the child while riding, I provide a suitable pedal mechanism and attach it to the framing of the bicycle in any suitable way, said pedals being placed relatively to the childs saddle, so that they are convenient for its feet. I prefer that this pedal mechanism shall be disconnectible from the main driving mechanism at will.

Referring to the drawings, and more particularly to Fig. 2, the reference numeral 20 marks the shaft from and by which the pedals 21 22 are supported in a usual way by arms 23 24, fast to said shaft. The said shaft 2t) is su pported by a sleeve 25, which is or may be integral with the jaws, or one of them, by which it is held to the framing, as to the backbone D. In the instance shown the sleeve 25 is in two parts, one of which, as 26, is integral with the semicircular jaw 27 and the other, as 28, is integral with the semicircular jaw 29. The jaws 27 29 fit upon the circular backbone D and are clamped thereto by screws or screwbolts 30 31, which pass through holes in jaw 29 and engage threaded holes in jaw 27 or flanges of said jaws. Adjoining the outer end of sleeve 28 I place a collar 32 on said ICO shaft 20, and fasten the same thereto by a pin, as 33, passing through holes in the collar and shaft. Adjoining the outer end of sleeve 26 I place a sprocket-wheel 34, preferably loose on shaft 20. Bolted to orintegral with wheel 34 is one member, as 35, of a clutch device. Outside said member 35 is the second member, as 36, (a sleevein this case,) of said clutch device, said member 36 being movable longitudinally, but not circumferentially, of the shaft 20, with which it is connected by a spline 37 on the shaft engaging a groove, as 38, in the member 36. The said spline 37 preferably abuts against the end face of member 35, as this and the described relations of collar 32, sleeves 26 28, and wheel 34 pre- Vent any endwise motion of shaft 20. I prefer that the clutch device shall have but one tooth 39 on one of the members, as 36, and a corresponding notch or kerf 40 on the other member, as 35. I also prefer that said tooth 39 and notch 40 shall not extend inward the whole way, so that the abutting of feather 37 against the face of member 35 will not be interfered with. The member 36 of the clutch may be moved by any suitable means to disconnect it from member 35. The means shown consist of a ring 41 in a circumferential groove 42 in member 36, a forked lever 43, pivoted, as at 44, its forks being pivoted to ring 41, as at 45, and a link 46, pivotally attachedto lever 43 and to lever 47. Said lever 47 is pivoted, as at 48, to an arm 49 of the sleeve 26 or jaw 27. Said arm extends out alongside lever 47 to near the end thereof and prevents accidental bending of the latter. An arm 50 of said arm 49 extends at an angle thereto to near the member 36, and to this arm 50 the lever 43 is pivoted, as at 44. Link 46 lies alongside arm 50.

On the shaft of sprocket-wheel H, I place a sprocket-wheel 51, and I connect sprocketwheels 34 51 by a sprocket-chain 52. I prefer that wheels 34 51 shall be of equal size and that they shall be of smaller size than wheel H. I also prefer that the arms for pedals 21 22 shall be shorter than the arms for pedals I I. I further prefer that the tooth 39 and notch 40 shall be so placed that the arms of pedals 21 22 and of pedals I I shall be parallel. The chain 52 may be of any suitable construction and should have means for opening it, as a screw-link, whereby it may be removed altogether. The childs saddle, the supporting devices therefor, and the supplemental pedal mechanism are readily removable also, thus converting the bicycle into the ordinary single-rider machine.

I am aware that heretofore bicycles for carrying two riders have been used. In said bicycles there are two sets of pedals, a sprocketwheel rigid with the forward set of pedals, two sprocket-wheels rigid with the rear set, and a similar wheel on the axle of the rear groundwheel; also, a sprocket-chain connecting the sprocket-wheel of the forward set of pedals with one of the wheels of the rear set and the usual chain connecting the other of said wheels of the rear set with the rear ground-wheel. There are two saddles; also, there is a steering-head and handle-bars connected with the forward ground-wheel. Thereis also a steering-head and handle-bars adjacent the saddle for the rear rider and a bar connecting the said sets of handle-bars, so that they are controlled by either rider. Such machines are rather heavy for, and are not so easily controlled by, a single rider. I do not claim such a tandem bicycle as of my invention.

My invention may be applied to bicycles having other sorts of frames than the diamond frame.

Numerous changes in the details maybe made without departing from my invention.

IVhat I claim as new, and desire to secure by Letters Patent, is-

1. The combination, with a bicycle havinga handlebar, driving mechanism, and the usual saddle, of a pedal mechanism secured to the frame adjacent the steering-head, sprocketwheels and chain connecting the same with the driving mechanism, and a second saddle adjacent the said steering-head, substantially as and for the purposes described.

2. The combination, with a bicycle havinga handle-bar, driving mechanism, and the usual saddle, of a pedal mechanism secured to the frame adjacent the steering-head, sprocketwheels and chain connecting the same with the driving mechanism, a clutch connecting one of said wheels with its shaft, and a second saddle adjacent the said steering-head, substantially as and for the purposes described.

3. In a bicycle, the combination of a pedalbearing shaft, a support in which it is journaled, a sprocket-wheel loose on said shaft, a chain connecting said wheel with a sprocketwheel fast on the driving mechanism of the bicycle, and a clutch device connecting said loose wheel and said shaft, substantially as and for the purposes described.

4. In a bicycle, the combination of a pedalbearing shaft, a support for said shaft, a loose sprocket-wheel on said shaft, a chain connecting said wheel with a sprocket-wheel fast on the driving mechanism, a clutch device connecting said wheel with said shaft, and lever mechanism for disconnecting said clutch, substantially as and for the purposes described.

5. In a bicycle, the combination of a pedalbearing shaft, a support therefor, a loose sprocketqvheel on the shaft, a chain connecting said wheel with a sprocket-wheel fast to the driving mechanism, and a clutch device having a single point of engagement for connecting said loose wheel with the said shaft, substantially as and for the purposes described. f

6. The combination of a shaft, a wheel loose thereon, a stationary sleeve or stop on one side of said wheel, a spline on the shaft abutting against a smooth face of said wheel at the other side thereof, a grooved sleeve on said shaft and engaging said spline, and a clutch outside of said spline, one part being on said sleeve and the other on said wheel, substantially as described.

7. The combination of a shaft, a bearing in which it is journaled, means for preventing endwise motion of said shaft in one direction, a wheel loose on said shaft and abutting against said bearing, a spline or feather on said shaft, the end thereof abutting against a continuous face of said wheel, whereby said shaft is prevented from endwise movement in the other direction, and a clutch outside the spline, one member thereof being on said wheel, the other on said shaft, and having a groove engaging said feather, substantially as and for the purposes described.

8. In a bicycle, the combination, with the backbone and the bearing for supporting the goose-neck or other saddle-support, said bearing having two parallel perforations from front to rear, of two bars, one in each of said perforations, means for rigidly retaining them therein, a perforated block on the forward ends of said bars, a supporting rod or bar in one of said perforations of said block and resting on the backbone, a seat-support in another of said perforations, and means securing said bars, support, and block rigidly together, substantially as and for the purposes described.

9. In a bicycle, the combination, with two rigid bars extending forward from the usual saddle-supports, of a block rigidly secured on the forward ends thereof, two up-and-down perforations in said block, a supporting rod or bar in one of said perforations, said rod resting on the backbone, a seat-supporting rod or bar in the other of said perforations, and means for rigidly securing said rods in place, substantially as and for the purposes described.

10. Ina bicycle, the combination of support E, backbone D, rods or bars 3 4, means for securing them to support E, block 7, means securing it to rods 3 4, perforations 12 16 in said block, supporting-rod 17 in perforation 16 and having a shoe 19, resting on the backbone D, goose-neck 13 in perforation 12, a saddle, as 15, on the goose-neck, and means securin g supporting-rod 17 and goose-neck 13 to said block 7, substantially as and for the purposes described.

11. In abioycle, the combination of a pedalbearing shaft, as 20, a bearing, as 26 28, therefor, a collar 32, fast to the shaft 20 and abutting against one end of the bearing, a sprocket-wheel 34, loose on said shaft and abutting against the other end of the bearing, a notch or kerf in the face of said wheel, a sleeve 36, having a groove 38 and a tooth 39, a spline 37, abutting as described, and means for opening said clutch, substantially as described.

Signed at New York, in the county of New York and State of NewYork, this 11th day of January, A. D. 1892.

TIIOS. E. MOKENNA.

WVitnesses:

F. GooDWIN, R. W. BARKLEY.