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Publication numberUS210435 A
Publication typeGrant
Publication dateDec 3, 1878
Filing dateMay 8, 1878
Publication numberUS 210435 A, US 210435A, US-A-210435, US210435 A, US210435A
InventorsJohi B. Root
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Improvement in velocipedes
US 210435 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)



No. 210,435. Patented Dec. 3, I878.





Specification forming part of Letters Patent No. 210,435, dated December 3, 1878; application filed May 8, 1878.

'To all whom it may concern:

Be it known that 1, JOHN B. ROOT, of. the" city of New York, in the county and State of New York, have invented a new and useful Improvement in Vehicles or Traveling Machines, of which the following is a specification:

In my application for Letters Patent for improvement in road-locomotives, filed October 27, 1877, the driving-wheels were so mounted and operated that their paths of travel were diagonal to the direction in which the machine was moving, the caster-wheels, which acted as drivers, being so arranged that those of each pair constantly receded from and approached each other in their movements. The same principle-driving-wheels tracking diagonally to the general direction of the vehicleis applied to the construction which forms the subject of this patent, but with this modification, that the drivingwheels vibrate sinuiltaneously-in the same direction, so that they remain substantially the same distance apart.

The invention consists of a platform,in combination with rearwardlyinclined casterwheels, so attached to the platform as to vibrate laterally with the lateral movement of the platform, the whole being so constructed and arranged that it can be driven by changing the center of gravity from side to side of the platform.

This construction is illustrated in the accompanying drawing, in which A represents the platform; B B, the driving-wheels; b b, spindles of the wheels B B 5 O, guide-wheel; D, handle of guide-wheel d, connecting-rod, and a a a frames attached to platform for supporting the wheels. The platform may be of any desired shape, that shown in the drawing being triangular.

The driving-wheels B B, constructed upon the principleof caster-wheels, are mounted in the frames to a, located at the rear angles of the platform, so that their spindles b b will turn freely in the frames to a to permit the wheels to take any direction in which they may be impelled by the force exerted upon the platform. The spindles of the caster-wheels B B are so mounted in the frames a a as to be inclined to the platform in a'rearward direction.

The guide-wheel O is located at the remainin g angle of the platform, and the rod on which the handle D is mounted is inclined or bent backward, so as to bring the handle within easy reach of the operator, who stands or sits near the center of the platform. The weight of the platform and its load rest upon shoulders on the stocks of the caster-wheels.

The vehicle is actuated and controlled as follows: The operator stands upon the central part of the platform, facing the guidewheel, and sways his body from side to side, or throws his weight suddenly from one foot to the other, thus changing the center of gravity from one side jg tl e other of the platform. This change of weight upon the platform gives to it a lateral movement, and this lateral movement of the platform causes the spindles b b to turn in their hearings in their frames a a, and changes the direction of the caster-wheels B B, causing them to run alternately to the right and left of a line representing the general line of progression of the vehicle. Thus the action of these drivingwheels becomes very like that of an car in sculling through the water, or a skater when he propels himself by the swaying of the body, with both feet side by side on the ice.

The machine can be guided by simply turning the guide-wheel from right to left, or vice versa, by means of the handle D.

What is claimed as new isl. A vehicle or traveling machine propelled by means of inclined caster-wheels, substantially as described.

2. A vehicle or traveling machine consisting of a platform mounted upon rearwardlyinclined caster-wheels and a guide-wheel, constructed and operating substantially as set forth.

JOHN 13. R001.

Witnesses: 1 REM. A. SMITH Bon'r. H. DUNCAN.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3062559 *Jun 16, 1959Nov 6, 1962Hewitt Robert BVelocipede with two rear caster wheels
US3206223 *Nov 14, 1960Sep 14, 1965Frye Kenneth WTricycle with locking caster wheel
US3663038 *Apr 6, 1970May 16, 1972Hendricks William EVehicle with combination steering, braking and propulsion means
US4087104 *Aug 16, 1976May 2, 1978General Motors CorporationMethod of manually propelling a cambering vehicle
US4526390 *Mar 21, 1983Jul 2, 1985Skolnik Arthur MToy vehicle
US4930796 *Jul 29, 1988Jun 5, 1990KranscoRiding vehicle
US5039121 *Oct 11, 1989Aug 13, 1991Rick L. HardinTri-skater
US7226062 *Oct 24, 2003Jun 5, 2007Nick StefanoRecreational wheelie vehicle
US9108693Jan 31, 2014Aug 18, 2015Radio Flyer Inc.User propelled ride-on vehicle
US20060022422 *Jul 29, 2005Feb 2, 2006Tasma Gerald WTrike swinger
WO2012130598A1Mar 13, 2012Oct 4, 2012Raybike OThree-wheeled coaster
Cooperative ClassificationB62K3/002