US1049826A - Gathering-locomotive. - Google Patents

Description

R. R. DUNLOP. GATHERING LOCOMOTIVE,

APPLICATION TILED 001e, 190a Patented Jan. 7, 1913.

2 SHEETS-SHEET I.

gwucn for Witnesses R. R. D UNLOP. GATHERING EOGOMOTIVE. APPLICATION nLB'n'bme, 1909.

1,049,826. Patented Jan.7,1913.

2 SHEETSSHEET 2.

6 8111mm toz UNITED STATES PATENT ()FFICE.

ROBERT ROWSE DUNLOP, OF COLUMBUS, OHIO ASSIGNOR TO THE JEFFREY MANUFAC- TURING COMPANY, A CORPORATION OF OHIG.

GATHERING-LOCOMOTI'VE.

Specification of Letters Fatent.

Patented Jan. *7. 1913.

Application filed October 6, 1903. Serial No. 521 .3'2'4.

In "/N i a lm/z if'muy conoern:

lie it known that l, lloniiii r R. Dt'nnor a t-itizcen ot' the lln tetl Staten, residing at (lolumhue. in the count) of Franklin and State of ()hio. ha e invented certain new ind meful Improvements in Gathering- Loeomotives. 0t Whirl the following is a sp eoitlrntion. reterenee being hurl therein to the rireoim 'ianving t'lrznviug.

This inventirn relates to mine gathering loromotive;-; and has as ltfi object to provide a lot-emotive with a fiexihle ezihle for C(lll((ft in; rurrent and conducting it to the locomotive, anti with an autonmtioally controlled Winding mechanism for the cable which is regulated by the tension in. the (able (lrztthering lt 0lllltfilVP-4 i rovitletl \vith elem trie ronthzrtor czthles are ll$tl in mine rooms antl Ride entries whieh z; e not equipped With tr llev wires or other llXtFil eleetrie t-ontluotors. The tree en l of the table is eleetri -silly eonnertetl to the trolley Wit in the nearest main entry, and the lotomotive propelled along the traelts in the Sltl entries and rooms hy means of current oontluetetl by the enhle to the ltllCOli'lOt'lYt, motors. he table is WOUIltl upon a reel Carrietl hv the l eomotire from "whit-h it is paid out it"; the lo omotive is moving away from the trolley Wit? and upon W ith it \vountl when the locomotive is moving tmvartl the trolley wire, Thus equipped, the lotoirniitive is ahle to gather the coal or ore ear? from the rooms in which the mine proouet i* being rot. and haul them to tlirmain entry where they run he eollei-tell in trains for haulage to nointe outsitlo the mine. reat tilitiieulty has heen experientretli in properly controlling-the unwinding: and winding movements of the reel. When them-eel is unwinding. it is tll'Fll'llOlQ to mainlair a eons-tent tension in the (able whioh shall he suttieient to prevent the enhle from being lairl in undulations along the twirl: and which at the same time will not he sufficient to hreak or damage the mhle r to remove it from its terminal fastening tit its free entl. lVhen the rahle is heine \vouml it if; necessary to operate the reel at a sqiewl proportional to the speed oi the loromotive, and at "the same time to cause the power mechanism \Vlllt'h operates the reel to tentl to Wind the reel at all times taster than the movement of the locomotive will permit -10 that a unitorm tension may also he, main tuinetl (luring the movement of the loeomo tire toward the trolley wire. The failure of the winding mechanism to :o operate will result in the locomotive running ahead of the cable and in the wheels of the locomotive passing over and damaging or completely severing the eahle. Many devices have been suggested and many ideas followed out in an attempt to provide a Winding mechanism for the reel and 3, brake for controlling its unwinding movements which will bring: about the desired result. i

It is the purpose of this invention to provide a eombinetl brake anil power \vintler Whit-l1 shall maintain an almolutel c nstant; tension in the cable at all llmtm hether the loeomotive he rowing tor zwl or away from the trolle wire or be standing still ipon he track Figure 1 ot the drawings is a .altlj elevw tion of a loeomotive embodying the improvements of my invention Fig. 24 is a plan. View of the mine. Figs. 3 and l show the automatic voltage eontrolli lg ll'ltftlll l.- nism in detail. F'gs. 5 and 6 shoe eireuit of two eleotrieal apparatus emhotlyinzg my invention The locomotive in eonstnictetl with the usual side frames 1, l ail-(l ensl frames 2, i?- boltetl thereto. This framework in mounted on the axle, 4, 4 antl wheels 5, 5. The looomotive is propelled by amour: oi the lectric motors; t'n it. e h of \vhirh in to to it; correspondingr axle l. The tr ll; les: t" v erve to t-omlnrt current tron; the trmlea Wire to the-moh it when the lo omotivei operating: in those parts of the mim which are equipped with trolley 'll U the rear eml ot' the lwoimiti e :1 cont roller 8 for the loeomotire motors, t! motornmn's sent a hralte wheel lth untl the other eoott'olling mechanism are plaeetl.

A rnhle reel 11 is mounted on :1 vertical ,uxis on top of the loeomotive, and upon it l 0 ti root t zoutully lint is intitustcd on a writ-a taxi u; lav i-il :dmti It i which is i'orinml ntr g rnl n ilw block lisl': liit tli is (HUM will the,

it in n pwition tur {mud n lll- :irtion my tltc wi h: whioh ooznpro in tho i-iihlo. mom lilo" sorru' .7

do by ilittlliFE of the thrritilird G11 und wall LS con tarot oi? tho block 32 in umlinting pinto 48, to which in :rlurrd tho condurtor yolte H hm, sliding cwzniiu-L with the torminuls ind Si by means of tl oshoe or brush it" and at ith tho oi tlio hrudi ciililr n noruml i =13)" will llUljlJi} i thcso terminals. out will ho b'iilipfllititl on a blo k I which with ut tlttflil dl (tomato iion with other parts. i

as and :34 art: two wlr-noids mounted in flllllPilit-Hl, \ith nu ii. other prolorubly with their mob oxtonding trnnsrciwly oi the loooum i Yr, 7 k z 5!; i: a vote r; idly mountod on a rod (30 trnut turn lit". Whon the tPiLSlOil in llof for longitudinal movement liotwccn tho two solvnoids and. into one or the ()tl'u't of them, The allllll iltl .3 3 in i-loctriciilly connected with tho contact, and tho aolonoid 54 i;-: ele 3- lrimilly (i liiil' iftftl with tho ooniu 1 5i,

\l'hrn tho i liblull in the. too small tho spring will mow the yoke 49 to it. position where it will oonnoctterini unit; 5*) and at and roniplctc the circuit of tho gt ltilultl 5 1;, (ruminating currentv to it from the sliding oonturt devices of the cable by llltfilllti of conductor -lVl1e11, on the other hand, the tension in the cablc inn above norliinl the yoke will bepullrd llt'l. M PUSlllHl to Slilil riy oncrgizo the solenoid fit Enough thit- .ontwiot 5i. shown in Z5. when tho solenoid 33 1 Tho cable 15 til: it leaves the reel hvtuorn tho \orticully mounted i nro bolted t I d? lflll'ici of the lo oinotix'r lino joining the l'flllLlh iii and iii 1 tho u-mg to an oxtrnt varying in :itttitttnlitt' 1th the ninount ot thotrnsion .un of tlic fixed ul uti ll and which (2111 lm .r llltlnfi or tho rank fit This 3 iorininnh 50* and ill" by mean tliimlliii the shoot; 49 and 3 rngngvnient with :iny of i mm tin. u; tion of the spring into l iergizod,

the euro. One of those contact .it .dhhihly ongngn tho terminal 59 iviurtor \ii 0 i: nnd the other conowl; 2'31) slidnhl vintages the contact innit n i which arc tho terminals of the ill loading to thc motor Bl. Resistance is intripwod hrtwoen those buttons, so than Wllill the ((Hilzit'l blot-l; Ill is in engage- :mni with the right hund button 10 all of ihi ro-i -tunrt i=1 interposed in series in the circuit, oi thr motor. i\- the contact block i inorra ;-1ic(: sly into rug ftllltlli with the conta t buttons itt". 10, etc, tho resistance is lr ronswl by stops, until tho contact button it) in rouchcd, whon tho mltugo applied to tho inotdr lJU'tHitth nniximuin. To steady the a tion of tho wlrnoid 55, it; that control of the within tension may not be jerky, the rod tit) hm: Mfl'lll'til at ita outer end the piston til which oporntos in tho oil cylinder 62. "llnii pnors from tho chamber in front of ho rlniiniior to the roar of the l tho pmlon in:

linton hv moans of ti and its iii-who. it fl w 27- i moons of :1 vulvo tilt in. tho i in; our the automatic Hlwlt lt ttlllltillilig nwrlnini -znn which is in ctt'ort ii tonsion governor, prnvcntod from owrrunning. in other won 5, the oil cylindor or retarding devi e prevents the controlling; mechanism from responding so qui -lair and violently to the, change of ten: won. Ii to more than counteract the change. 'l lm motor 21 may either be a series 1110- 1 tor, a shown in Fig. 5, or a shunt motor, as .sllfmll in Fig: 6. From tho motor the ourrontis loll bark to tho cnorutor in any suitable path, the drawings indicating that the rcturn terminal of the motor is grounded. ltlvchzinisin is provided whereby, when the will: is mnnoctod to the trolley Wire, the trollov pole and its winncctions are cut out i of cirouit, and the ruhlo is placed in series l with the locomotive motors. The same 3 moohunisni also autonititicully cuts the cable and tho rool motor out of circuit as soon as 1 the cubic hook is Sopn utod from the trolley wire. This nicclianinni oon'iprises the elcct rio-magnet M, which is energized by means of the ooniluctor wire *2) :n soon as the cable hook elei'ztriczilly connur-tod to the trolley wire. When thus ontrgizod, the electroinzignoti draws the owitch 46 toward itself ing the wirc &5 with the controller 8 and the l mi motoru ti. Nixon tho locomotive is 0pcrntrd from tho trolley wire the electronnignrt doiintzrgizod and the spring 47 n n05 tho EWllCll 4 into po-:ition to'conneot n wire it? which leads to tho trolley Wheel nting lunhing .37 scaled in the hole 58 drilled ngnimt the action of the spring 47 connoctv with the controller 8 and the car motors Since the reel motor is always in series with the cable, it is automatically energized whenever the cable hook is connected to the trolley wire and current. This current cut off whenever the cable is disconnected from the trolley wire by the action of the spring 47. \Vhen the locomotive is to be operated by means of the cable the cable hook is fastened to the trolley wire and the locomotive proceeds away from the trolley wire with either the motormans end in advance or with the other end in advance, as may be most convenient. When the end opposite the motormans position is in advance, the cable is conducted back from the guide mechanism 28 and kept from chafing against the locomotive parts by any suitable antifriction devices. Irrespective of whether one end or the other is in advance, as soon as the cable is connected to the trolley wire, the motor will be energized and the arma ture will be compelled to turn against the magnetic torque of the field, the cable is unwound from the reel under the action of the moving locomotive. Tension will be created in the cable because the motor arma ture is thus resisted in its rotation by the energized field. If this tension exceeds a predetermined amount the spring 35 will be compressed more than its normal amount and resistance will be put in series with the reel motor. Thus, the voltage applied to the motor will be diminished, the winding torque will be correspondingly diminished and the tensi n in the cable will be lowered to the de ired normal. If the locomotive should he suddenly retarded in its motion along the tra k and the cable should be- 'vlIlQ too slack, the spring it!) will automatically cut out resistance from the circuitof the reel motor, the voltage across the motor terminals will be increased and the winding torque will be correspondingly increased, with the result that the tension in the cable is again brought back to normal. hen the locomotive moving toward the fixed end of the cable the motor armature will be rotated by electrical energy, and the voltage applied to the motor terminals will be rcgulat/ed and increased or diminislud as the conditions of operation vary, so as to maintain the tension in the cable constant in quantity. The motor is so designed that it will illlls operate either as an electro-magnetic braltc or to furnish power to wind the reel. accord ing as the locomotive is moving in the direction to unwind the caldc or in the direction to wind the Ctldt rcspcctivcly. The electric energy required to rotate the reel to wind the cable i:-' greater than that required to cause themotor to act as a brake when the reel is unwinding othcr conditions being cqual 'it' constant tension under both sets of conditions is the dcsideratum. liy

(3. l using the automatic controlling mechanism which has been described, the same motor can be used for both purposes andthe tension be kept at. a normal value under all circumstances. This automatic action is the same whichever end of the locomotive be in advance, as it recedes from the fixed end of the conductor. The reel motor is automatically put in circuit, and from the time that the cable is placed in operation until the time when the cable is again discon-' nected, no attention of the motorman is required however suddenly the conditions of operation may vary.

The automatic controlling mechanism is operated by the tension of the cable and not by the speed of the locomotive, the speed of the reel motor, or any variation in the speed of the locomotive or of the reel motor. It operates effectively whether the slack in the cable on the, one hand, or the excessive tension in the cable on the other hand, be caused by variation in the line voltage, by

mechanical obstruction of therotative movement of the reel, by friction between the cable and the locomotive parts or by variations in the speed of the locomotive. It will also operate whether a series motor or a shunt motor be used to drive the reel. F or some reasons a shunt motor is preferable to I a series motor for the purpose of driving the reel, the shunt motor being capable of being so designed that its speed will not vary excessively under varying load conditions. When a shunt motor is used the slackening of the cable is not automatically taken care of by an increase in the speed of the motor, such is to some extent the case with a series motor which thus responds to a lightening of the load; and when using a shunt motor, the automatic device, which is the subject matter of this invention, becomes then a necessity for increasing the speed of the motor.

'hat I claim is- .l. The combination in a locomotive, of an electric motor for propelling it, a cable reel mounted on the locomotive, a conductor cable wound on the reel at one end and adapted to be secured to a fixed conductor at the other end, and electrically connected with the said motor. a power device. transmilting mechanism between the power dcvicc and the reel. and mechanism for varying the power supplied the power device. aid mechanism being controlled by thctcnsion in the cable.

2. The combination in a locomotive, of an electric motor for propelling it, a cable recl nn'untcd on the locomotive. a conductor cable wound on the reel at one end and adapted to be secured to a fixed conductor at the other end. and electrically connected with the said motor, a power device, transmitting mechanism between the power device and the reel, and mechanism for varying the speed of the power device, said mechanism being controlled by the tension in the cable.

3. The ct'unbination in a locomotive, of an electric motor for propelling it, a cable reel mounted on the locomotive, a conductor cable Wound on the reel at one end and ad apted to be secured to a fixed conductor at the other end, and electrically connected with said motor, means for applying a. winding torque in opposition to the unwinding rotation of the reel, and an automatic controlling n'iechanism for the said torque applying means operable by the cable tension.

4. The combination in a locomotive, of an electric motor for propelling it, a cable reel mounted on the locomotive, a conductor cable Wound on the reel at one end and adapted to be secured to a fixed conductor at the other end, and electrically connected With-the said motor, means for rotating the. reel, said means being independent of the locomotive motor and propelling mechanism and being energized independently of the movement of the locomotive, and automatic controlling mechanism for the said reel rotating means operable by the cable tension.

5. The combination in a locomotive, of an electric motorfor propelling it, a cable reel mounted on the locomotive, a conductor cable wound on the reel at one end and adapted to be secured to a fixed conductor at the other end, and electrically connected with the said motor, a second electric motor for operating the reel, and automatically acting controlling mechanism for the second motor operable by the cable tension.

6. The combination in a locomotive, of an electric motor for propelling it, a cable reel mounted on the locomotive, a conductor cable wound on the reel at one end and adapted to be secured to a fixed conductor at the other end, and electrically connected with the said motor, a second electric motor for operating the reel, and automatically acting mechanism operable by the cable tension for varying the voltage applied to the second motor.

r 7. The combination in a locomotive, of an electric motor for propelling it, a cable reel mounted on the locomotive, a conductor ca ble wound on the reel at one end and adapted to be secured to a fixed conductor at the other end, and electrically connected with the said motor, a single device ada )ted to serve as a combined power brake an power Winder for the reel, operatiin as a brake when the reel is unwinding and as a winder when the reel is Winding, a single train of connections between the said device and the said reel, and a governor for the said device controlled by the cable tension.

8. The combination in a locomotive, of an electric motor for propelling it, a cable reel mounted on the locomotive, a conductor ca ble Wound on the reel at one end and adapted to be secured to a fixed conductor at the other end, and electrically connected with the said motor, means for applying an clec tro-magnetic torque to resist the unwinding rotation of the reel, and an automatic controllen for the said means operable by the cable tension.

9. The combination in a locomotive. of an electric motor for propelling it, a cable reel mounted on the locomotive, a conductor cable wound on the reel at one end and adapted to be secured to a fixed conductor at the other end, and electrically connected with the said motor, a second electric motor geared to the cable reel and adapted to wind the cable when the locomotive is moving toward the fixed conductor and to elec tro-magnetically resist the unwinding of the cable reel when the locomotive is moving away from the fixed conductor, and an automatic controller for the second motor operated by the cable tension.

10. The combination in a locomotive, of an electric motor for propelling it, a cable reel mounted on the locomotive, a conductor cable wound on the reel at one end and adapted tobe secured to a fixed conductor at the other end, and electrically connected with the said motor, a second electric motor permanently geared to the cable reel, and automatic mechanism operated by the cable tension to vary the voltage applied to the reel.

11. The combination in a locomotive, of an electric motor for propelling it, a cable reel mounted on the locomotive, a conductor cable Wound on the reel at one end and adapted to be secured to a fixed conductor at the other end, and electrically connected with the said motor, a second electric motor for the cable reel, and mechanism operable by the cable when the tension therein exceeds or is less than normal to decrease or increase respectively the voltage applied to the reel motor.

12. The combination in a locomotive, of an electric motor for propelling it, a cable reel mounted on the locomotive, a conductor cable wound on the reel at one endand adapted to be secured to a fixed conductor at the other end, and electrically connected with the said motor, a, second electric motor for the cable reel and means for regulating the voltage applied to the reel motor operable by the cable tension to maintain said tension constant under varying conditions.

13. The combination in a locomotive, of an electric motor for propelling it, a cable reel mounted on the locomotive, a conductor cable wound on the reel at one end andada ted to be secured to a fixed conductor at tlie other end, and electrically connected with the said motor, acombined power brake and power winder for the reel, operating as a brake when the reel is unwinding and as a winder when the reel is winding, and a' governor for the said brake and winder controlled by the cable tension,- and adapted to regulate the power applied thereto to maintain the cable tension constant under varying conditions and irrespective of the direction of. movement of the locomotive. 14. The combination in a locomotive, of an electric motor for propelling it, a cable reel mounted on the locomotive, a conductor cable wound on the reel at one end and adapted to be secured to a fixed conductor at the other end, and electrically connected with the said motor, a second electric motor geared to the cable reel and adapted to wind the cable when the locomotive is moving toward the fixed conductor and to electro-magnetically resist the unwinding of the cable reel when the locomotive is moving away from the fixed conductor, and an automatic controller for the second motor operated by the cable tension and adapted to maintain the cable tension constant under varying conditions and irrespectiy e of the direction of movement of the locomotive.

15. The combination in a locomotive, of an electric motor for propelling it, a cable reel mounted on the locomotive, a conductor cable wound on the reel at one end and adapted to be secured toa fixed conductor at the other end, and electrically connected with the said n itor, means for operating the reel to wind the cable, means for regu lating the unwinding movement of the reel, and means for controlling the winding and the regulating means operable by the cable to maintain the cable tension constant irre spective of the direction of movement of the locomotive. 4 16. The combination in a locomotive, 0 an electric motor for propelling it, a cable reel mounted on the locomotive, a conductor cable wound on the reel at one end and adapted to be secured to a fixed conductor at the other end, and electrically connected with the said motor, a second electric motor geared to the cable reel and adapted to wind,

the cable when the locomotive is moving toward the fixed conductor and to electromagnetically resist the unwinding of the cable reel when the locomotive is moving away from the fixed conductor, and automatic means for applying more power to said motor when the locomotive is moving toward the fixed conductor than when it is moving away therefrom.

17. The combination in a locomotive, of an electric motor for propelling it, a cable reel mounted on the locomotive, a conductor cable wound on the reel at one end and adapted to be secured to a fixed conductor at the other end,-and electrically connected with the said motor, a second electric motor geared to the cable reel and adapted to wind the cable whenthe locomotive is moving toward the fixed conductor and to electromagnetically resist the unwinding of the cable reel when the locomotive is moving away from the fixed conductor, and automatic means operable by the cable, tension for increasing the voltage applied to the reel when it is moving toward the fixed conductor to a value greater than that when the locomotive is moving away from the fixed conductor.

18. The combination in a locomotive, 'of an electric motor for propelling it, a cable reel mounted on the locomotive, a conductor cable Wound on the reel at one end and adapted to be secured to a fixed conductor at the other end, and electrically connected wit-h the said motor, a second electric motor for the reel, a variable resistance in series with the motor, and a cont-roller o erable by the cable whenever the tension tiierein exto give the resistance a new value adapted to bring the cable tension. back to normal.

19. The combination in a locomotive,- of,

reel mounted on the locomotive, a conductor adapted to be secured to a fixed conductor at the other end, and electrically connected with the said motor, a second electric motor for the reel, a variable resistance in series spring acting onthe pulley and resisting the tension in the cable, and means operatively connecting the pulley and switch.

In testimony whereof I aflix my signature,

in presence of two witnesses.

ROBERT RQWSE DUNLOP. Witnesses: V

W. R. Youmaus,

ARTHUR G. Sxnnns.

ceeds or is less than a predetermined amount an electric motor for propelling it, a cable cable wound on the reel at one end and therewith, a switch to vary the resistance, a movably mounted pulley for the cable, a

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