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Publication numberUS1216694 A
Publication typeGrant
Publication dateFeb 20, 1917
Filing dateDec 16, 1914
Priority dateDec 16, 1914
Publication numberUS 1216694 A, US 1216694A, US-A-1216694, US1216694 A, US1216694A
InventorsCharles Francis Jenkins
Original AssigneeCharles Francis Jenkins
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Gravity-railway device.
US 1216694 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

C.'F. JENKINS. emwm RAILWAY DEVICE. APPLICATION FILED DEC-'16, 1914.

Patented Feb. 20,1917.

V motor-generator, without novelty,

which in turn supplies it CHARLES FRANCIS EnK IivsoF WASHINGTON, prem er on COLZUMBIA,

GRAVITY-RAILWAY 'nnvIcE. V

' Patented Feb. 20, 1 917. Application filed December 16, 1914. Serial No. 877,591.

To all whom it may concern: Be it known that I, CHARLES FRANCIS JENKINS, a citizen of the United States, re-

siding at Washington, in the District of Columbia, have invented certain new and useful Improvements in Gravity-Railway Devices, of which the following is a specification, reference being had therein to' the accompanyingdrawing.

y invention I relates to railway systems use where most of the material carried is moved in one direction from a higher to a lower level, for example where coal from a mine is carried from the mine to a lower and more or less distant point, and its object 7 is to provide for generating power on down grades and applying such power to returning the cars, usually unloaded, to the mine and sometimes carrying loads over up-grade portions of the route taken by the coalladen cars. In general terms, the invention provides for equipping the cars with a adapted to act automatically as a generator on down grades and as a motor on other grades, so that the generator of a descending loaded. car supplies current to a trolley circuit to the motor of other cars, and preferably, when there is a surplus of current, supplies it also to a comparatively small storage battery connected with the trolley circuit, so that in case of need a car may be returned to the mine although no load is descending, or may be aided in moving on any other part of the line when peculiar conditions make such aid desirable.

In the accompanying drawings,

Figure 1 is a diagrammatic plan view showing an embodiment of my system and method.

Fig. 2 is a diagrammatic view showing the same devices in side elevation.

In these figures, A represents the mouth of a mine, B a distant station at which coal is to be delivered, 0 a railway track leading downward from A to B, D a return track,

motor trains moving down the track C, E cars, usually unloaded, returning on the track D, F a trolley wire suspended from poles F, and G a storage battery connected Specification of Letters Patent.

cars from a higher ways and including the motor generators are .withthe trolley circuit. Each train carries without novelty, .arranged in a well known way, to change auto matically from its generating function when a motor-generator,

gravity urges the descent of the car to its motor function when the car is not thus urged forward. Usually, the descending and ascending tracks are closely adjacent, 7

cars, as indeed 1t would were an endless cable employed without recourseto electric devices. The advantages over such a cable Under most conditions enough current is generated to afford a surplus and this is supplied to the storage battery, which is thus usually kept charged. It follows that within limits empty cars orthose loaded with supplies may be carried upward to the mine although and of course that the cars do not necessarily move at the same speed.

What I claim is: 1. The method.

turning unloaded cars, which consists in providing a descending railway for loaded cars, an ascending railway for returning cars, a storage battery,

lowing the descending and ascending railbattery, a. series of independent trolleycars each provided with a motor generator in said circuit, and allowing the loaded cars to descend while their in unbroken circuit through the battery; whereby energy de veloped by the descending'loaded cars may be used to return cars to the high point without extraneous power, whether cars are at the moment descending.

2. In gravity railway devices, the combination with a track loop through points of maximum and minimum elevation, of a storsystem are, however, many and obvious.-

no loaded-car be descending,

like, and in ample power to return empty of transporting loaded to a lower level and rea trolley circuit folor not age battery, ing the 100p, unconnected With extraneous source of power, and forming a circuit throughthe battery; and a seriesof car units each provided With an automatic motor generator and unconnected. With its companions and each normally 7 in the electric 'O11'Cl11t; whereby cars are caused to ascend Wl16I1d8-- Copiesef this patent may be obtained for five cent an electrical conductor followscending cars.

In testimony whereof I affix my signature in presence'offtwo witnesses; .7

,CHARLES FRANCIS JENKINS. 'Witnesses: JAlVIESLJ CIEA'WF'ORU;

ROBERTCRAIG GREENE.

s each, by. addressing the Commissionernf Patents,

Washington, D. G.

Referenced by
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US4895079 *Dec 9, 1988Jan 23, 1990Beatty Robert AVehicle hauling process and apparatus
US6557476 *Jan 15, 2002May 6, 2003AlstomSystem for supplying power to electrically propelled vehicles
US6591758 *Dec 26, 2001Jul 15, 2003General Electric CompanyHybrid energy locomotive electrical power storage system
US6612245Dec 26, 2001Sep 2, 2003General Electric CompanyLocomotive energy tender
US6612246Dec 26, 2001Sep 2, 2003General Electric CompanyHybrid energy locomotive system and method
US6615118Dec 26, 2001Sep 2, 2003General Electric CompanyHybrid energy power management system and method
US6973880Mar 3, 2003Dec 13, 2005General Electric CompanyHybrid energy off highway vehicle electric power storage system and method
US6990906 *Mar 22, 2002Jan 31, 2006James Russell PowellElectrical power storage and delivery using magnetic levitation technology
US7191710Dec 15, 2005Mar 20, 2007James Russell PowellElectrical power storage and delivery using magnetic levitation technology
US7231877May 9, 2003Jun 19, 2007General Electric CompanyMultimode hybrid energy railway vehicle system and method
US7430967Jul 13, 2005Oct 7, 2008General Electric CompanyMultimode hybrid energy railway vehicle system and method
US7448328Jul 13, 2005Nov 11, 2008General Electric CompanyHybrid energy off highway vehicle electric power storage system and method
US7532960Mar 3, 2003May 12, 2009General Electric CompanyHybrid energy off highway vehicle electric power management system and method
US8742616 *May 25, 2012Jun 3, 2014Dehlsen Associates, Llc.Bulk energy storage and frequency regulation of electrical power
US20040112247 *Mar 22, 2002Jun 17, 2004Powell James RussellElectrical power storage and delivery using magnetic levitation technology
US20120085611 *Dec 16, 2011Apr 12, 2012Energy Recovery Technology, LlcEnergy recovery system
US20120089525 *Oct 20, 2009Apr 12, 2012Metadigm LlcSuperconducting Power and Transport System
US20120323414 *Jun 15, 2011Dec 20, 2012Wei-Hua LuHybrid electric vehicle
Classifications
U.S. Classification104/289, 104/287
Cooperative ClassificationB60L2200/26