USRE17097E

USRE17097E - Elevator

Info

Publication number: USRE17097E
Authority: US
Publication date: 1928-10-09

Description

Oct. 9, 1928. Re. 17,097

M. BARUCH ELEVATOR Original Filed Oct. 10. 1921 2 Sheets-Sheet 1 INVENTOR l7i/fon Baruch AfTORNEY cm. 9,1928; Re. 11,091

M. BARUCH v ELEVATOR Original Filed Oct. 10. 1921 2 Sheets-Sheet 2 Fly 6' INVENTOR M/Vfon Baruch ATTORNEY v elevators operating in uil ings, although, of

Reissued a. 9,1928.

1 UNITED STA Tss PATENT OFFICE.

11112130! annex, or "BEVERLY HILLS, canr'aonma, assfenoa r0 was'rmenousn ELECTRIC mnmuracrvnmo oomramr, a CORPORATION or rnnnsrnvmm.

- ELEVATOR.

Original No. 1,580,883, dated April 13, 1926; serial 110.506369, file d butcher 10, 1921. Application for reissueflled {Tune 23, 1928. Serial No. 287,827.

My invention relates to elevators and it may be advantageousl ap lied to passenger course, being equally applicable to freight elevators and hoists of various descriptions.

which is so constructed t at it will automatitor will be described. 'The principalbbject of the invention is to rovide an elevator cally assume a position in which the floor of the car is level with the floor of the building in the event that the car is stopped with the floor of-the car out oflevel with the fiooro'f the building, provided-such stopping occurs within a certain distance of the level position, this distanceon either side of the level position being hereinafter designated as the object .quite indepen 25 providemeans by which the above objects inay be attained without the use of switches or cams carried by the carorsituated in the hatchway-and with a high degree of accuracy.

- A'still'jfurther object of the invention is to.

provide means whereby the leveling mechanism is heldout of enga ement at all times 1 except at the time or just efore the time that the carcomes to rest. I

f A. still further object of the invention is to provide meansior accomplishing the above objects which will be extremely flexible in installation so that these means can be applied to existing elevators or can be readily modified tosuit almost any conditionmet with in practice. I

Further objects and advantages will be made evident hereinafter.

Referring, to the drawings which are for illustrative purposes only,

Figure 1 isa diagram showing anelevator car to which my leveling system has been Fig.2 is an elevation on an enlarged scale showing the leveling fingers and a leveling roller; l

' Fig. 3 is a front elevation showing the leveling roller in its support;

Fig. 4 is partial section on an enlarged sciaig onla plane represented by the line H 0 1g.

Fig. 5 is a sectlon on a plane represented by the line 55of Fig. 2; and In the following specification the application of my invention to a passenger eleva- 1 Fig. 6 is a dia ram of connection. In the form 0 the invention shown I provide a car-1'1 which is suspended by cables 10 which pass up to suitable counter-weights and hoisting mechanism, not shown. Secured-to the top -of the car 11 is a flexible tape 12 which passes, over

sheaves

13,14, 15 and 16,

being then attached to the bottom ofthe car. The member 12 is preferably formed of thin steel although any other material having ,suificient strength, flexibility and permanence may be used. The car 11 passes up and down in ahatchway serving

floors

17, 18 and 19.

Secured. on the flexible member 12 are a series of projections 20, one of these projections being provided for. each of the floors 17,

18 and 19. The projections 20 consist of a member 21 on what may be termed the back of the member 12 and a member 22 on the face of the'member 12, these members being.

secured together through holes for slots in the member 12 by means of'bolts' 23, Carried on a pin 25 in each ofthe members 22 is a roller '26. Each of the

sheaves

13, 14, 15 and 16 has with a groove 27 wallow the'members 21 topass readily therearotifi'd.

Situated at some convenient point are a pair of leveling fingers 3'1 and 32. Rollers 3Q turning about stationary pinsare located

opposit'e thejfingem

31 and 32 for the pur ose of holding the rollers 26 in contact with t ese fingers "as shown in Fig. 2.. The

fingers

31 and 32 are carried on pivots 33 and are pro' vided with projections 35 between which a tension spring-34 is stretched, this spring 1 tending to pull the extensions 35 against stops 36., A contact 37 is carried by but insulated from each of the members 35, this contact touching and making electrical connection with a contact 39 whenever the mem-' position of the building structure or mechanism. A bellcrank 43 forming an exztension on an arm 41' pivoted at 42 to some stationary of the arm 41 is connected to the plunger 44 ofamagnet having a winding 45.

The method of connection can best be understood from Fig. 6 in which is the armature of the elevator motor which is mechanically connected to raiseand lower the car means of suitable mechanism not shown'ilth rough the cables 10. The armature 50 is magnetically linked with a field 51excited from a source not shown. The armature leads 52and 53 of the motor armature 50. are connected. to wires 54 and 55. The

, wire 54 is connected tocontacts 56 and 57 and the wire 55 is connected to contacts 58 and 59.. The contacts 56 and 58 form part of an upcontactorfio having a coil 61, the contactorfio being so constructed that the contacts-56 and 58' are .closedwhenever the

tacts

58 and 57 areconnected wire 65. series with the-wire 1s a winding 61 ;is, energized. In=the same way the contacts57'and 59 form part of a down contactor 62 having-alwindin 63. .The conto a negative resistance '66 which may bu cut in and ouffof circuitby means of contactors 67 which may be either automatically energized or which a maybe controlled; by a. car switch 70 ingac means, not shown.

,cordance with the standard pi'ncticeg' by The .motor {50'orfsome portion of themech- 1 driven by theniotor is provided with a brake Tdperated by magnet 71. The contacts 37 and-.39 operated by the finger 31 are for convenience designated as the up contact-72 and the similar fingers operated by the arm 32. are'de'signated as the down contact 7 3. The car'switch 7O is provided with an operat; inghandle 74 which may operate an arm 75 making contact with .the segments 76, 77, 7 8,

79, and 81. The operating handle 74 may I be aloattached to other forms of control switch, for example, as push buttons such as is used inantomatic elevators. The con-- tact 81 is connected through a wire with a wire 91 connecting the winding 61 to the The other terminal of the windin 61 is connected to a common wire 92 which is connccted to one terminal of the wlnding 63,

the wire 92 being connected to the brake magnet 71 which is connected through a wire 93 with alnegative wire 94. This negative wire-94 is'also connected to one terminal of the magnet 45, the other terminal of which is eonnected through a wire'96with the seg ments77 and 8Q. A positive wire 97 is con-' nectedto the segments 78' and-7 9 and toione side'of the contact 72 and- 73 by r'neansof wire 98.- Thefother side of the winding 63 is con? nected through awire 99 with one sideof the contact 73 and through a wire 100 with the segment 76. j

The method ofoperation is as follows: In the dia am of Fig. 6, the operating handle 74is s own in its oil. or neutral position, this being the position into which the handle is thrown when it is desired to stop the car. In the event that it is desired to start the car u wardl the handle 74 is rotated in a cloc wise irection, first connecting the contacts 77 and 7 S'together which connects the wire 96with the positive side of the circuit.- Thisenergizes the magnet 45 which pulls upwardl on the core 44 and draws the box 40 an the

fingers

31 and 32 out of the path of the rollers 26. This is done for the purpose of preventin the roll ers 26 from striking against the hngers 31 and 32 while moving at a high speed and thus causing unduewear to the fingers and what is more important a very disagreeable clicking noise, If the handle 74 is rotated further-in a clockwise direction, the contact 76 is alsoconnected to" the contact 78 thus connecting the wire 100 with the positive side of the circuit, This energizes the down contactor 63 which closes the contacts 57 and 59 the car. Themoving of the handle 74 to the in accordance with standard Theneutral position opens the circuit ofthe contact 77 and :deenergizes the magnet 45 thus allowing the,

fingers

31 and 32 to drop into the position shown in Fig. 2 in which position they are engaged by one of the rollers 26. In the event that the car stops with the roller 26 in the position shown in Fig. 2 neither of the

fingers

31 or 32 are moved away from the'stops 36and neither the

contacts

72 or 73 are closed except 'perhapsmomentarily as the car comes tores't. jThis central position, of the rollers 26 corresponds to an accurate landing at the floor-18.

In the event, however, that the car is above or below the floor, the roller 26 will be above or below the position shown in Fig. 2 and either the finger 31 or the finger 32 will be depressed,thus closing either the contact 72 or the contact 73. If the contact 72 is closed.

the winding 61 is energized which closes the the elevator moves the roller 26 downwardly and as soon as the roller reaches the"po-" sition shownin Fig. 2, the contacts 72 are the elevator is too high, the fingers 32 are energized and the contact 73 is closed,.thus

contacts 56 and-58 and causes theelevator to move upwardly. This upward movement of opened and the elevator stops. Conversely if V operating the down contactor 62 and connecting the motor into circuit in such a manner as to move the elevator down until the central or level position is reached.

It is to be understood that there is the projections 20 carrying a each of the floors which it is desired to serve and these projections are so spaced on the member 12 thatan accurate leveling takes place by means of the mechanism shown. While I have the

fingers

31 and 32 and their attached parts near the bottom of the hatchway, it is evident that this is not at all necessar as they will operate in any position which can be reached by the member 12. The member 12 may, for example, be run over one of additional sheaves to points quite distant from the hatchway in which the car travels.

I claim as my invention:

n 1. In an electric elevator, the combination of: acar ;an electric motor for actuating said car; a controller connected to operate said motor in a forward or in a reverse an operating handle carried in said car by which an operator can set said controller to operate said motor in either direction; a pair of fingers; a flexible member attached to the car and so constituted as to actuate oneof said fingers when the car stops a a predetermined point and to actuate the other finger'when the car stops a little below a predetermined point; and means independent ofsaid operating handle by which the actuation of one of said fingers causes said controller to assume a posi car down and the actuation of the other finger causes said controller to assume a position to move said car up.

2. In an electric elevator, the combination of a car; an electric motor for actuating said car; a controller connected to operate said motor n a forward or in a reverse direction; an o crating handle carried in said car by whic an operator can set said controller to operate said motortin either direction; a-pair o fingers, a flexible member attached to said car; a series of projections on said flexible member each so constituted and placed as to actuate 'one of said fingers. when the car stops a little above a predetermined point and to actuate the other finger when the car stops a little below a predetermined point; and means independentv of said operating handle by which the actuation of one of said fingers causes said controller to assume a position to move the car down and the actuation,

of the other finger causes said controller to assume a position to move said car up..

- 3. In an electric elevator, the combination a of: a car; an electric motor for actuating said car; a controller connected'to operate said motor in a vforward or in a reverse direction; an o erating handle carried in said, car by whic an operator can set said controller to opesate said motor ineithe'r direction a pair roller 26 for 1 direction;

little above.

of fingers; a strip of flexible flat material ate tached to said car and passin in proximity to said fingers; a series of pro ections on said flexible strip each as to actuate one of said fingers when the car stops a little above a predetermined point and to actuate the otherffinger. when the car sto s a little below a predetermined point; an means independent. of said operating handle by which the actuation of one of said fingers causes said controller to assume a position to move the car down and the actuation of the other finger causes said controller to assume a position to move said car up.

'4. In an electric elevator, of: a car ;an electric motor for actuating'said car; a controller connected to operate said motor in a forward or in a reverse direction; an operating handle carried in said car by which an operator can set said controller to operate said motor in either direction; a pair of fingers; a flexible member attached to the car and so constituted as to actuate one of said fingers when the car stops a little above a predetermined point andv to actuate the other finger when the car stops a little below a predetermined point; and means by which v finger .sets the controller in the up position and the actuation of thethe actuation of one other finger sets the controller in' the down position. a

5. In an electric elevator, the combination of: a car; an electric motor for actuating said .car; a controller connected to operate said tion to move the" motor in a forward or'in a reverse direction; an operating handle carried in said car by which an operator can set said controller to operate said motor in either direction; a pair of fingers; a flexible member'attached to said car; a series of projections on said flexible member each so constituted and placed as to actuate one of said fingers when the car stops a little above a predetermined point and to actuate the other finger when the car stops a little below a predetermined point: and

of z a car; an electric motor for actuating said so constituted and placed the combination means by which the actuationof one finger car; a controller connected to operate said motor in a forward or in a reverse direction;

an operating handle carried in said. car bvwhich an operator can set said controller to operate said motor in either direction; a pair of fingers; a strip of flexible fiat material attached to said'car and passing in proximity to said fingers; a series of pro ections on said flexible member each so constituted and placed as to actuate one ot-said fingers when the car stops a little above a predetermined point and to actuate the other finger when the car stops a litt and means b'y'which the actuation of one le below a predetermined point car; a series fin er sets the controller in the up position and the actuation -of the other finger sets the controller in the down position.

7. In an electric elevator, the combination of: a car; an electric motor for actuating said I other finger when the car stops a little below 1 l a:predetermined point;

means for rendering rs inoperative at all times except -when said operating handle is in the off position; and means independent of said oper- 2 ating handle by which the actuation of one of said fingers causes said controller to assume a position to movelthe cardown and the actu- Sal.

ation of the other fingercanses the controller to assume a 'tionto move said car up.

8. In an e ectric elevator, the combinationf v of: acar; an electric motor for actuating said fingers; a flexible member attached to said of projections on said flexible member each said fingers when .the car stops a little above a pre a little below a predetermined point; zneans for rendering said fingers inoperative at all 40. times except when said operating'handle is in the off-position; and means. independent of said operating handle to assume a position said motor in a forward 0min a reverse. direction an operating handlecarried in said whichan operator can set said controller to operate said motor in either'direction;

'tached t said car and passing in proximity tosaid ngers; a series of projections on said 1 flexible stripeach so constituted andplaced' as to actuate one of said fingers when the car i I a stops :1 little above a predetermined point and to actuate the other finger when the car stops" f a .little below a predetermined point; and means independent of by which the actuation causes said controller to assume aposition to tached to the car I hic an operator can set saidcontnollerltoopbrate said motor in either direction; a pair so constituted and placed aslto 3 actuate one of determined point and to actuate the other finger when the car stops'f I times. except when said operating handle is said operating handle by w by which the actuation of one of said fingers causes said con-- the-actuation of the other finger for actuating said l car'b'y a pair-- of fingers; a strip of flexible flat material at flexible strip each so 7 'to actuate one of said fingers 'when the car said operating handle of one of said fingers move the car down and the actuation ofthe other finger causes said controller to assume -a position to move said car up.

'10. In an electric elevator, the combination of: a car; an electric motor for actuating said car; a controller connected to operate I said motor in a forward or in a reverse direction; an operating handle carried in said car by which an operator can set said controller to operate said motor in either direction; a pair of fingers; a flexible member atand so constituted as to actuate one of said fingers when the car stops a little above a predetermined point and to actuate the other finger when the. car stops a little below a predetermined point; means for rendering said fingers inoperative at all times except when said operating handle is in'the off position; and means by which the actuation of one finger sets the controller in the up positionand theactuation of the other finger sets the controller in the down' position. 11.. In an electric elevator, the combination Kof: a car; an electric motor for actuating said fear; a controller connected "to operate said motor in a forward or in a reverse direction;

"an operating handle carried in said car by.

i twln' y {operate said-motor in either direction; a pair '1 of fingers; a flexible member attached tosaid c r .car;"a series of projections on said flexible ch an operator can set said controller to member each a little above a predetermined point and to actuate the other finger when the car stops a little below a predetermined point; means in the off position; and means independent of ich the actuation one of said "fingers causes said controller to assume a position to move the car downand the'actuation of 'the other finger causes said controller to assume a position to move 12. In an electric elevator, the combination car; a controller connected to operate said motor in a forward or in a reverse direction an operating handle carried in said car by steps a little above a predetermined point and of: a car; an electric motor for actuating said er direction a pair o fingers; a st rip .of flexible flat material troller to assume a position to move the car down and the actuation of the-other finger causes said controller to assume a position to move said car up. I, f,

13. In an electric elevator, the combination of: a car; an electric motor for actuating said car; a controller connected to operate said motorin a forward or in a reverse direction; an operating handle carried said 'car by which an operato'rcan set said controller to operate said motor in either direction; a pair of fingers; a flexible member attached to said car; a series of projections on said flexible member each so constituted and placed as to actuate one of said fingers when the car stops a little above a predetermined point and to actuate the other finger when the car stops a little below a predetermined point; a magnet controlled by the movement of the operating handle fordrawing said fingers out of the path of said projections at all times except when said operating handle is in the OE or neutral position and means said motor in a forward or in a reverse direction; an operating handle carried in said car by which an operator can set said controller to operate said motor-in either direction; a pair of fin ers; a strip of flexible fiat material attache to said car and passing in proximity tosaid fingers; a series of projectionson said flexible strip eachls o constituted and placed as to actuate one of said fingers when the car stops a little above a predetermined point and to actuate the other finger when the car stops a little below a predetermined point; a magnet oontrolled by'themovement ofthe operating handle for drawing said fingers out of the path of said projectionsvat all times except when said operating handle is in the oil or neutral position; and means independent of I said operating handle by which the actuation 01 one of'said fingers causes said con troller toassume a position to move the car down and the actuation of the other finger causes said controller to assume a position to move said car up.

' 15. The combination with an elevator car and an electric motor for actuating the car,

of manually operable means for controlling the motor, a flexible member attachedrto said car, and means comprising an electroresponsive switching device controlled by said flexible member for controlling said m0- tor when said manual means is inoperative.

17. The combination with an elevator car and an electric motor for actuating the car, of manually operable means for controlling the motor, a flexible member attached to said car, a plurality of adjustably mounted projections carried by said member, and switchingmeans controlled by said projections for efiecting automatic operations of said motor .to actuate said car to predeternn'ned points of car travel.

18. The combination with an elevator car and an electric motor for actuating the car, of manually operable means for controllin the motor, a flexible member attached to sai car, a plurality of adjustabl mounted projectionsca'rried b said mem r, and switch- I mg means contro led by said projections for effecting automatic operations of said motor to actuate said car substantially to a selected level independently of said manually operable means.

19. The combination with an elevator car,

and an electric motor for actuating the car,

of manually operable means for controlling controlled by saidmem'bers or controlling said motor when said manual means is inoperative.

'20. Thecombinationwith an elevator car and an electric motor for actuating the car, of manually o erable means for controlling the motor, a p urality of cam members actuated in accordance with the car movement, means for cooperating with said members to control said motor, and means-for rendering said cooperating means inefiective.

21. In a control system for an elevator car operablepast a floor, means for stopping said car accurately level with'said floor comprising a cam member movable in correspondence with movements of said car through a distance substantially e ual to the distance traversed by said car an means cooperating with said cam mem er at a-point thereon corres onding to the position of said car at said oor level for controlling the stopping of said car.

22. Ina control system for an elevator'car car movement, and electro-res onsive means operable in a 'hatchwaypast a plurality of floors, means for stopping said car accurately atssaid floors comprising a cam member having a cam portion for each of said. floors and operable in correspondence wltlfmoveher to stop said car at any of said floors when the corresponding cam portion engages said control means.

23. In a control system for an elevator car operable in a hatchway past a plurality of floors, means for stopping said car accurately at said floors comprislng acam member having a cam portion for each of said floors and operable in corres ondence with movements of said car throug a distance substantially equal to the distance traversed by said car in. said hatchwa'y, and control means for said car cooperating with said cam member to stop said car at any of said floors when the corresponding cam portion engages said control means and means 0 rable at will for preventing engagement 0 said control means and any of said cam portions.

24. In a control system for an elevator car operable in a hatchway past a plurality of floors, means for stopping said car accurately at said floors comprising a cam member having a cam portion for each of said floors and operable in correspondence with movements of said car through a distance substantially equal to the distance traversed by said car in said hatchway, and control means for said car cooperating with said cam member to stop said car at any of said floors when the corresponding cam portion engages said control means and means operable when it is desired to pass a floor for removing said control meansfrom engagement with said corresponding cam portion. v

25. In a control system for an elevator car operable in a hatchway past a plurality of floors, means for starting said car, means for stopping said car accurately at said floors comprising, a cam member having a cam por-v tion for each of said floors and operable in correspondence with movements of said car through a distance substantially equal to the distance traversed by said car in said hatchway and control means for said car cooperating with said cam member tostop said car at any of said floors when the corresponding cam portion engages said control means, and means operable by actuation of said car startin means for removing said control means om engagement with said cam portions.

26'. In a control system for an elevator car operable in a hatchway past a plurality of floors, means manually operable from a car stopping position to a car. running position, car controlling means operable by movements of said manually operable means to car starting positionfor starting said car, means for actuatln said controlling means to stop said ca'r leve with said floor including, a cam member movable in correspondence with movements of said car through a distance substantially equal to the distance traversed by said car andhaving a cam portion thereon corresponding to each floor and control means for actuating said car controlling means engageable by the corresponding cam operable in a hatchway past a plurality of floors, means manually operable from a car stopping position to a car running position,

car controlling means operable by movements of said manually operable means to car starting position for starting said car, means for actuating said controlling means to stop said car level with said floor including, a cam member movable in correspondence with movements or said car through a distance substantially equal to the distance traversed by said car, and having a cam portion thereon corresponding to each floor and control means for actuating said car controlling means engageable by the corresponding cam portion when said car is adjacent the associatedvfloor and magnetic means operable'when said manually controlled means is in car running position for preventing engagement of said control means and said cam portions.

28. In atcontrol system for an elevator car operable in a hatchway past a plurality of floors, means manually operable from a car stopping position to a car running position, car controlling means 0 erable by movements of saidmanua ly opera le means to car starting position forstarting said car, means for actuating said controlling means to stop said car level with said floor including, a cam member movable in correspondence with movements of said car through a distance substantially equal to the distance traversed by'said car and having a cam portion thereon corresponding to each floor and control means for actuating saidcar controlling trol means into a position to be enga ed by the cam portions associated with said oor.

29. In a control system for an elevator car operable in a hatchwayv past a plurality of floors, means manually operable from a car stopping position to a car running position, car controlling means operable by movements of said manually operable means to car starting position for starting said car, means for actuating saidcontrolling means to stop said car level with said floor including, a cam member movable, in correspondence with movements of said car through a distance substantially equal to the distance traversed by said car and having a cam portion thereon of said manually operable means to car start corresponding to each floor and control means for actuating said car controlling means engageableby the corresponding cam portion when said car is adjacent the associated floor, magnetic means for moving said control means to a position out of possible engagement with said cam portions and means operable in response to conditioning the car to stop at any of said floors for rendering said magnetic means inefiective.

30, In a control system for an elevator car operable in a hatchway past a plurality of fl00rs, means manually operable from a car stopping position to a car running position, car controlling means operable by movements ing position for starting said car, means for actuating said controlling means to stop said able by movement of said manually operable means to a car stopping position for moving 'said control means into a position to be en gaged by the cam portions corresponding to the next'floor approached by said car.

- MILTON BARUCH.