US3854413A - Twin tube car drive - Google Patents
Twin tube car drive Download PDFInfo
- Publication number
- US3854413A US3854413A US00396965A US39696573A US3854413A US 3854413 A US3854413 A US 3854413A US 00396965 A US00396965 A US 00396965A US 39696573 A US39696573 A US 39696573A US 3854413 A US3854413 A US 3854413A
- Authority
- US
- United States
- Prior art keywords
- wheels
- car
- tubes
- rail
- power
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 230000037361 pathway Effects 0.000 claims abstract description 32
- 230000002349 favourable effect Effects 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 101150047356 dec-1 gene Proteins 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61B—RAILWAY SYSTEMS; EQUIPMENT THEREFOR NOT OTHERWISE PROVIDED FOR
- B61B13/00—Other railway systems
Definitions
- ABSTRACT A propulsion system for the cars of a transportation system in which cars are guided along predetermined pathways having favorable stability and noisesuppression characteristics.
- the system comprises l a pair of cylindrical tubes mounted on each of the 7 cars, journalled for rotation relative to the car on which they are mounted, and extended longitudinally of the car in parallel, spaced relationship to each other, (2) two sets of wheels spaced along the predetermined pathways and journalled for rotation, one set being positioned to engage the cylindrical surface of one of the tubes on each of the cars and the other set being positioned to engage the cylindrical surfaces of the other tube on each of the cars, and (3) means for driving either the tubes or the wheels.
- the angles between the axes, of the tubes and the axes of the wheels is variable so that the speed of the cars can be varied by varying that angle without varying the speed of the member to which power is supplied.
- This invention relates generally to the transmission of power to the cars of a friction-powered unit transportation system and, more specifically, to the transmission of power to the cars in a transportation system such as is disclosed in commonly assigned US. Pat. Nos. 3,621,790, 3,626,859, and 3,650,216.
- the principal object of the present invention is to provide a propulsion system for friction-powered unit transportation systems such as is disclosed in the above patents which imparts little or no tendency to shift laterally from the predetermined path to the cars of the unit transportation system and which can therefore use no lateral guides or lateral guides which are greatly reduced in size and strength in comparison to the lateral guides used in the system disclosed in the above-mentioned patents.
- Secondary objects of the present invention include providing a propulsion system for such a friction-powered unit transportation system which is appreciably quieter than the previously used propulsion systems and which utilizes an appreciably higher percentage of the available weight of the cars in the system, thereby enhancing the accelerational and incline-climbing properties of the system.
- a system which comprises (1) a pair of cylindrical tubes mounted on each of the cars, journalled for rotation relative to the car on which they are mounted, and extended longitudinally of the car in parallel, spaced relationship to each other, (2) two sets of wheels spaced along the predetermined pathways and journalled for rotation, one set being positioned to engage the cylindrical surface of one of the tubes on each of the cars and the other set being positioned to engage the cylindrical surfaces of the other tube on each of the cars, and (3) means for driving either the tubes or the wheels.
- the angles between the axes of the tubes and the axes of the wheels is variable so that the speed of the cars can be varied by varying that angle without varying the speed of the member to which power is supplied.
- FIG. 1 is an end view of a preferred embodiment of the present invention with details of the structure of the car omitted.
- FIG. 2 is a plan view of the embodiment of the present invention shown in FIG. 1 with the superstructure of the car shown only in phantom outline.
- a car 10 is shown moving over a predetermined pathway 12.
- ties 14 which may be conventional railway ties, for example.
- a pair of reaction wheels 16, 18 are mounted on each tie 14 or, in general, at intervals sufficiently close so that the smooth-surfaced drive cylinders 20, 22 mounted on the bottom of the car 10 are always in contact with at least two pairs of the reaction wheels 16, 18.
- the reaction wheels 16, 18 are mounted in journalling means 24, 26 which permit the reaction wheels 16, 18 to rotate freely.
- the reaction wheels 16, 18 when the rotational axes of the reaction wheels 16, 18 are set at an angle to the longitudinal axes of the drive cylinders 20, 22, as shown in the drawings, the reaction wheels 16, 18 will trace a helical path on each drive tube surface the pitch of which varies according to the angle between their respective axes.
- the journalling means 24, 26 are pivotably mounted in the pathway 12 so that the angle the axis of the wheels journalled therein make with the longitudinal axis of the pathway at the points where the wheels are positioned can be varied. Suitable means for so mounting the journalling means are disclosed in my previously issued, commonly assigned US. Pat. No. 3,621,790, the relevant disclosure from which is hereby expressly incorporated by reference herein.
- journaling means The purpose of so mounting the journaling means is so that the power transmitted between the reaction wheels 16, 18 and the drive cylinders 20, 22 can be varied by varying the abovementioned angle without varying the rotational speed of the drive cylinder.
- the drive cylinders 20, 22 are resiliently mounted on the car 10 by means such as the V-shaped axes 28 mounted at either end of the car in the preferred embodiment. Joumalling means are provided where the shafts 29 of the cylinders 20, 22 meet the axes 28 to allow the shafts to rotate freely. Since the cars in systems such as these are supported either largely or entirely by their cylinders, the resilient mounting means serve the same function as shock absorbers in more conventional transportation systems.
- a motor 30 is mounted on the bottom of the car 10 between the drive cylinders 20, 22, and it powers the drive cylinders 20, 22 by means of sheaves 32 mounted on its drive shaft 31, sheaves 34 mounted on the shafts 29 of the drive cylinders 20, 22, and connecting belts 36.
- the motor 30 may be powered by any appropriate means, but it has been found particularly convenient to power it electrically. This may be done by means of an electrified rail 38 and an electrical ground rail 40, one of which is mounted on either side of the pathway 12. Means for picking up the power from the electrified rail 38 and for completing the circuit are provided in the form of V-mounted rollers 42 and brushes 44.
- the rollers 42 cooperate physically with each other and with the rails with which they are in contact to prevent lateral shifting of the car 10 on the wheels l6, l8, and they can also serve as electrical connectors instead of or in addition to the brushes 44.
- rollers 42 it may be possible to dispense with the rollers 42 altogether, since, in some applications, cars made according to this invention may not require the lateral support which such rollers supply.
- the brushes 44 and/or the rollers 42 are electrically connected to the motor 30 by conventional means (not shown).
- a first plurality of wheels mounted in the predetermined pathways in position to engage the cylindrical surfaces of one of said pair of tubes, said first plurality of wheels being pivotably mounted in the predetermined pathways so that the angle the axis of each wheel makes with the longitudinal axis of the pathway at the point where that wheel is mounted can be varied;
- a second plurality of wheels mounted in the prededetermined pathways in position to engage the cylindrical surfaces of the other of said pair of tubes, each one of said second plurality of wheels being mounted opposite a corresponding one of said first plurality of wheels with reference to the longitudinal axis of the pathway at the point where that wheel is mounted, said second plurality of wheels likewise being pivotably mounted so that the angle the axis of each wheel makes with the longitudinal axis of the pathway at the point where that wheel is mounted can be varied; e. means journalling said first and second plurality of wheels for rotation about their axes;
- f. means operatively connecting corresponding wheels of said first and second plurality of wheels so that the absolute value of the angle the axis of each makes with the longitudinal axis of the pathway at the point where they are mounted is always equal, but the sense of the angle is opposite;
- power means operatively arranged to drive the system comprising said tubes and said reaction wheels.
- means for completing the circuit from said electrified rail to said electrical ground rail are mounted on the car in position to engage said electrical ground rail;
- said means for picking up the power from said electrified rail and said means for completing the circuit cooperate physically with each other and with the rails with which they are respectively associated to prevent lateral shifting of the car on said wheels.
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Current-Collector Devices For Electrically Propelled Vehicles (AREA)
Abstract
Description
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US00396965A US3854413A (en) | 1973-09-13 | 1973-09-13 | Twin tube car drive |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US00396965A US3854413A (en) | 1973-09-13 | 1973-09-13 | Twin tube car drive |
Publications (1)
Publication Number | Publication Date |
---|---|
US3854413A true US3854413A (en) | 1974-12-17 |
Family
ID=23569329
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US00396965A Expired - Lifetime US3854413A (en) | 1973-09-13 | 1973-09-13 | Twin tube car drive |
Country Status (1)
Country | Link |
---|---|
US (1) | US3854413A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4583462A (en) * | 1983-07-15 | 1986-04-22 | Si Handling Systems, Inc. | Driverless vehicle for two way accumulation |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2479995A (en) * | 1946-06-13 | 1949-08-23 | Cleveland Crane Eng | Electrical distribution system |
US3266588A (en) * | 1964-02-14 | 1966-08-16 | Chrysler Corp | Vehicle steering system |
US3621790A (en) * | 1969-08-11 | 1971-11-23 | Rex Chainbelt Inc | Railway propulsion system |
US3759188A (en) * | 1971-01-04 | 1973-09-18 | Goodyear Tire & Rubber | Variable speed conveyor |
-
1973
- 1973-09-13 US US00396965A patent/US3854413A/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2479995A (en) * | 1946-06-13 | 1949-08-23 | Cleveland Crane Eng | Electrical distribution system |
US3266588A (en) * | 1964-02-14 | 1966-08-16 | Chrysler Corp | Vehicle steering system |
US3621790A (en) * | 1969-08-11 | 1971-11-23 | Rex Chainbelt Inc | Railway propulsion system |
US3759188A (en) * | 1971-01-04 | 1973-09-18 | Goodyear Tire & Rubber | Variable speed conveyor |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4583462A (en) * | 1983-07-15 | 1986-04-22 | Si Handling Systems, Inc. | Driverless vehicle for two way accumulation |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: MATHEWS CONVEYER COMPANY, LEBANON RD., DANVILLE, K Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:REXNORD INC.;REEL/FRAME:004705/0241 Effective date: 19870427 Owner name: MATHEWS CONVEYER COMPANY, A CORP. OF DE.,KENTUCKY Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:REXNORD INC.;REEL/FRAME:004705/0241 Effective date: 19870427 |
|
AS | Assignment |
Owner name: BABCOCK INDUSTRIES INC., 425 POST ROAD, FAIRFIELD, Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:MATHEWS CONVEYER COMPANY, A DE. CORP.;REEL/FRAME:004821/0139 Effective date: 19871218 Owner name: BABCOCK INDUSTRIES INC., A CORP. OF NEW YORK,CONNE Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:MATHEWS CONVEYER COMPANY, A DE. CORP.;REEL/FRAME:004821/0139 Effective date: 19871218 |