Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.


  1. Advanced Patent Search
Publication numberUS1020943 A
Publication typeGrant
Publication dateMar 19, 1912
Filing dateJun 12, 1911
Priority dateJun 12, 1911
Publication numberUS 1020943 A, US 1020943A, US-A-1020943, US1020943 A, US1020943A
InventorsEmile Bachelet
Original AssigneeEmile Bachelet
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Levitating transmitting apparatus.
US 1020943 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)



nrLmA'rIon rum) Aram, 1910. muws um: 12. 1911.

1,020,943, Patented Mar.19,1912.



Specification of Letters Patent.

Patented Mar. 19, 1912.

Application led April 21, 1910, Serial No. 556,712. Renewed June 12, 1911. Serial No. 632,772.

To all whom t may concern.'

Be it known that I, EMILE BACHEIET, of Mount Vernon, in the county of Westchester and State of New York, have invented certain new and useful Improvements in Levitating Transmitting Apparatus; and I hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, which form part of this specification.

This invention is an improvement 1n levltating transmitting apparatus of the general type disclosed in my application for patent filed April 2, 1910, Serial No. 553,134. In such apparatus the carrier is levitated in a magnetic-field, so as to be practicallyv floated in the air, and may be impelled through such field by suitable means, preferably by electro-magnetic attraction. In said application the magnetic field is established by means of electromagnets arranged along the path or guideway to be traversed by the carrier, and are successively energized so as to produce a shifting magnetic field in which the carrier is lvitated and Caused to move with such fiel It is the object of the present invention to levitate the carrier by means of electromagnets, mount-ed thereon and movable therewith, and to provide means whereby such magnets may be continually energized by periodic currents so as to levitate the carrier during its transit from one point along the guide way to another; the guideway being so constructed that by reason of the repulsion between the magnets and the walls or guide-way which the carrier is to traverse, (or the repulsion between the eddy currents produced in the guide way and the magnetic eld producing such currents) the carrier will be floated or suspended in such guide-way and may be caused to traverse the same by any suitable means. I at present prefer to cause the levitated carrier to traverse the guide-way by an arrangement of solenoids, and use the carrier, or parts thereof, as a core or cores of such solenoids; so that the carrier will be sucked or impelled along the guide-way by the successive action of the solenoids mounted therealong.

I will now describe a conventional form of apparatus embodying the invention and illustrated in the accompanying drawings, which will enable any one skilled in the art to thoroughly comprehend the invention and embody same in a practical apparatusfalthough of course the construction shown in the drawings is merely illustrative, and the invention is not restricted to the particular apparatus shown therein; but the invention and features thereof for which protection is desired are summarized in the claims.

In said drawings-Figure 1 is a plan view partly broken away of part of a guideway and of a self levitating carrier in such guide way. Fig. 2 is an enlarged transverse section on line 2 2, Fig. 1. Fig. 3 is an enlarged detail section on line 3-3, Fig. 1.

The guide-way of the carrier is preferably trough-shaped and may be constructed of or lined with non-magnetic conductive material such for instance as pure aluminum, and such parts should be of suiicient thickness to prevent or greatly retard the flow of magnetic lines of force therethrough, as hereinafter described, so that the magnets on the carrier will be forcibly repelled therefrom.

As shown in the drawings the guide-way has a bottom plate 1 and side plates 1a and 1'n of non-magnetic material; these plates might all be connected, but for purposes of cheapness are made separate. The bottom plate 1 may be practically continuous along the length of the way; but the side plates 1a and 1b may be made in sections as hereinafter described.

Within the guide-way formed by the plates 1, 1a, l", as described, I place a carrier 2 which is of slightly less width than the space between the sides la, 1", and may be made of any suitable material, preferably a light non-magnetic metal. In cross section the carrier approximately conforms to the cross section of the guide-way. In the drawings the ways are shown as U-sha-ped, or approximately rectangular in cross section, and the carrier is similarly shaped; but obviously the guide-way and carrier could be of any other desired form in transverse section, as polygonal, or curved; the essential requisite being that the guide-way shall be sufliciently trough-like to form a guide for the carrier and direct it as it traverses therealong, and therefore I do not wish to be restricted to any particular shape or form of the guide-way, provided the essentials are retained.`

The carrier 2 is provided on its sides and bottom with powerful but light magnets 3, 3", 3b. These magnets are preferably electromagnets and may be arranged in series along the length of thecarrier as shown. I do not however wish to be restricted to any particular number or arrangement of the magnets provided enough are placed on the carrier to levitate it as hereinafter eX- plained. The cores or poles of the magnets are preferably arranged (in each series) to alternate, that is the first magnet in the series may have its N. pole outermost., and the next magnet have its S. pole outermost; and so on. As shown a pair of magnets 3 are arranged in the bottom of the carrier and above the bottom plate l of the guideway; and magnets 3b are arranged on the side of the carrier adjacent to the side plate 1b of the guide way; and magnets 3b are arranged in the side of the carrier adjacent the side plate 1b of the guide-way. A powerful magnetic field is generated by the poles of such magnets when energized by a periodic current such as an alternating current, or an interrupted direct current, or interrupted alternating current., and they will be repelled from the non-magnetic portions of the walls and bottom of the guide-way, with the result that the carrier will be levitated above the bottom plate l, and out of contact with the sides la, 1b, of the guideway as indicated in Fig. 2. The carrier will be levitated and remain levitated in the magnetic field so long as the magnets continue to be periodically energized; and if the magnet-ic field is made sufficiently strong the carrier may be utilized to transport matter or material.

The carrier magnets may be energized periodically by current supplied from any suitable source; in some cases it may be feasible to have the carrier contain its own source of electricity for energizing the magnets thereof; but as shown in the drawings the magnets are energized from an exterior current generator; such as an alternating current dynamo located at any suitable point. The magnets may be and preferably are, connected by suitable wiring in series or in multiple so that they will be energized simultaneously. I do not restrict myself to any particular mode of connecting the magnets, but at present prefer to connect each pair of magnets 3b in multiple, and put them in series with the adjacent magnets 3, 3b; and as shown the first magnet 3a of each series is connected by a wire la with a conductor 4 attached to the side of the carrier, but insulated therefrom, and the current passes from the magnet 3b through wire 4b to the magnets 3; and thence through wire 4c to the magnet 3b; and thence through wire 4d to a conductor 4e at the opposite side of the carrier. The conductor 4 is provided with `a brush 4g which is adapted to contact with the plates la, or a suitable conductor adjacent said plates, andwto-which current is supplied from the generator 5, by a wire 5a. The conductor 4b is provided with a brush 4f which is adapted to contact with the plates 1b, or a suitable conductor adjacent said plates, from which current is returned to the generator 5 through wire 5b.

The carrier 2 when levitated may be propelled along the guide-way by any suitable means; for example if the guide-way was closed, or placed within a tube as explained in my prior application, the carrier could be impelled through such closed guide-way by means of suction in front of, or air pressure behind the carrier; or the carrier might carry its own motor as described in my aforesaid application; or it may be impelled along the way by act-ion of solenoids arranged along the way; and in the drawing a number of solenoids 6 are shown as arranged at suitable intervals along the guide-way and are adapted to be energized for a suitable distance in advance of the carrier, as described in my aforesaid application; the solenoids being electrically connected with sectional conductors (3b and a continuous conductor 6b arranged along the guide-way. Then the circuit is closed between the conductors 6b and Gb the solenoids connected with conductors (ia will be energized. The circuit is closed between the conductors 6b, Gb by means of brushes Gc, 6d attached to the carrier 2; which brushes may be electrically connected through the carrier in any suitable manner; and if the carrier is made of conductive material it could be used as the electrical connection betweenv the brushes 6, 6d. The conductor Gb is connected by a wire 7b to a suitable source of electric current, such as a direct current dynamo 7 the other pole of such dynamo is connected by a wire 7b with the conductor 6b. The conductors 6a, 6b, may be arranged as described in my aforesaid application, or in other suitable manner, so that a number of solenoids 6 will be energized suiiciently in advance of the carrier to cause the latter to progress along the way; the carrier or parts thereof forming a core for such solenoids and being drawn successively thereinto. The carrier, if of non-magnetic material, may be provided with sheet metal bands 2m, which act as cores for the solenoids, and assist the solenoids in impelling the carrier along the way as described in my application aforesaid.

As the plates 1, la, 1b are made of nonmagnetic 1material, for the purpose described, they wou d have some effect in lessening or retardingthe attractive effect of the solenoids on the core or carrier and therefore I propose to make the side plates l, 1b in sections Which extend from one solenoid to the next as indicated in Fig. 3 of the drawings.

If these sections l", 1a are to be utilized as conductors, `as above described, they may be connected through the solenoids by conducting strips lm as indicated in Fig. 3 of the drawings.

Preferably I extend the bottom plate l continuously along the way. I have found that the levitating effect is increased by having the non-magnetic portions 1, la, 1b of the way of considerable thickness, but of course the extent and thickness of such portions will depend upon the size and weight of the carrier to be levitated.

By placing the levitating magnets on the c'arrier,-and making it, as it were, levitate itself,-the construction is of course greatly simplified and cheapened as only suiiicient levitating magnets are required to levitate the carrier and such magnets move with the carrier, and may be continually energized by periodic currents; and thus I create a continuous periodic magnetic eld and shift such field bodily with the carrier along the way. This is obviously a much cheaper construction than that described in my aforesaid application, in which it is necessary to provide sutlicient magnets all along the way to levitate the carrier at any point therein.

I do not as above stated consider the invention restricted to any particular form or construction of carrier or way; the essential feature of the invention being providing a way and a carrier adapted to traverse such way; and means on the carrier whereby it will be levitated or floated in the way; and means whereby such levitated carrier may be impelled along the way. Of course such levitated carrier may be caused to traverse the way at high velocity and suitable means are provided for arresting the carrier at the end of the way or where desired, such means however form no part of the present invention and need not be described herein.

What I claim is:

1. Transmitting apparatus, comprising a guide-way of non-magnetic conducting material, a carrier provided with electro-magnets, and means to periodically energize such magnets when introduced into such way whereby the carrier is levitated, and means for causing the carrier to traverse said way when levitated.

2. In transmitting apparatus, the combination of a guide-way of non-magnetic conductive material, a carrier, electro-magnets on the carrier, means for periodically ener/ gizing such magnets to establish an electromagnetic-field to levitate the carrier when in such way, and means for moving the carrier along said way when levitated.

3. Transmit-ting apparatus, comprising a line or guide-way of non-magnetic conductive material, a carrier provided with a series of electro-magnets, means for periodically energizing the magnets to create a magnetic-field around the carrier whereby the carrier is levitated when placed in the line, and means for impelling the carrier along the line when levitated.

4. Transmitting apparatus, comprising an aluminum guide-way, a carrier, a series of electro-magnets thereon, means to periodically energize such magnets to cause them to levitate the carrier when placed in the said guide-way, and means for impelling the carrier along the way while levitated.

5. In transmitting apparatus, the combination of an aluminum guide-way, a carrier adapted to traverse said guide-way, a series of electro-magnets on the carrier, means for periodically energizing the magnets to levitate the carrier when placed in the said guide-way, and electro-magnetic means t0 impel the carrier along the way while levitated.

6. In combination, a relatively xed body of non-magnetic conducting material, a carrier, an electro-magnet connected therewith, means for periodically energizing the magnet when opposite said body, whereby the carrier is levitated, and means for causing the carrier to move while levitated.

7. In levitating transmitting apparatus, a carrier, means on the carrier for establishing a periodic electro-magnetic-eld, and a guide way for the carrier extending at an angle to the line of repulsion and formed of non-magnetic conducting material, the carrier being adapted to levitate in said guide way when the magnetic-field is established.

8. An electro-magnetic levitating apparatus, comprising a body formed of non-magnetic conducting material, such as alumi num, a carrier, means on the carrier for producing a periodic magnetic-field whereby the carrier is caused to levitate when brought opposite said body, and means for controlling the movement of the carrier.

In testimony that I claim the foregoing as my own, I aiiix my signature in presence of two witnesses.



C. W. Fownnn, JAMES R. MANsFmLD.

Copies of this patent may 'be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2974775 *Oct 30, 1957Mar 14, 1961American Can CoCan runway
US3083650 *Jun 23, 1960Apr 2, 1963RenaultConveyors
US3113042 *Apr 19, 1960Dec 3, 1963Xerox CorpXerographic apparatus with magnetic conveyor
US3125964 *Mar 22, 1962Mar 24, 1964 silverman
US3158765 *Aug 25, 1959Nov 24, 1964Gen Electric Co LtdMagnetic system of transportation
US3198139 *Aug 19, 1963Aug 3, 1965William Dark JohnMonorail systems
US3233559 *Oct 27, 1964Feb 8, 1966Lor CorpTransportation means
US3470828 *Nov 21, 1967Oct 7, 1969James R Powell JrElectromagnetic inductive suspension and stabilization system for a ground vehicle
US3638093 *Apr 19, 1971Jan 25, 1972Rohr CorpMagnetic suspension and propulsion system
US3696753 *Oct 29, 1969Oct 10, 1972Transportation TechnologyGuideway and switching linear motor propelled vehicle
US3771033 *Jul 6, 1971Nov 6, 1973Japan National RailwayApparatus for propelling a movable body in a suspended state at a very high speed
US3791309 *Sep 17, 1971Feb 12, 1974M BaermannMeans to guide and suspend a vehicle by magnetic forces
US3845716 *Jan 8, 1973Nov 5, 1974Bertelsen WSurface effect vehicles and guideways therefor
US3847087 *Jul 26, 1973Nov 12, 1974Siemens AgPower transmission arrangement for a magnetic suspension railroad
US3885504 *May 25, 1973May 27, 1975Max BaermannMagnetic stabilizing or suspension system
US4220899 *Sep 14, 1978Sep 2, 1980Papst-Motoren KgPolyphase linear motor
US5017549 *Oct 31, 1989May 21, 1991The United States Of America As Represented By The Administrator Of The National Aeronautics And Space AdministrationElectromagnetic Meissner effect launcher
US5080627 *Sep 25, 1990Jan 14, 1992Kabushiki-Kaisha Toy BoxMotorized toy system
US5282424 *Nov 18, 1991Feb 1, 1994Neill Gerard K OHigh speed transport system
US5410199 *Oct 25, 1990Apr 25, 1995Doryokuro Kakunenryo Kaihatsu JigyodanVertically carrying superconduction motor
DE3914093A1 *Apr 28, 1989Oct 31, 1990Walter HrubyMagnetic suspension system for track guided vehicles - employs magnetic field to maintain clearance space on both sides of guide rails with retractable rollers
U.S. Classification310/13, 104/134, 104/281
Cooperative ClassificationH02K41/025