US1281772A - Elevator-gate-operating mechanism. - Google Patents

Description

J. E. W. FOGAL.

ELEVATOR GATE OPERATING MECHANISM.

APPUCATION msn 0m26.1911.` 1,281,772.

4 Ill( nl.. IU I.. El.. .m

A TTORNEYS JKM/Ml WIINESSES l ELEVATOB GATE GPERATING MECHANISM. APPLICMWN FILED uil-26. 1911.

1,281,772. Patented 00L 15,1915

3 Shins-sain 2'.

framers l. E. W. FOGAL.

ELEvAToR GAIE OPERATING MECHANISM.

APPLICATION FILED DC-26.1%?-

3 SHEETS-SHEET 3.

no w: w m N W narran STATES PATENT orFIoE JOHN E. Wi "FOGLIA, OF QUINCY, ILLINOIS, ASSIGNOB T QUINCY ELEVATB @ATE C0.,

i Lemme.

0F QUINCY, ILLINOIS, A CORPORATION 0F ILLINOIS,

ELEVATORGATEOPERATING MECHANIM.

Patented 001:45, 191s.

Application Med Denman-28,1917. Serial No. 208.826.

To all whom it may concern.'

-Be it'known that I, JOHN E. Focal., a citizen of the United States1 and a resident of Quincy, in the county of Adams and State 5 of I11inois, have invented a new and inl- "p'roved Elevator- Gate Operatingy Mechanism, of which the following is a full, clear, and exact description. y 'l This invention relates to a gate or door operatingV mechanism of that t'y-pe carried by the can or 'elevator wherebythe door or 'gate at any ioo'r can the mechanism on the car when controlled by the attendant. i i The-invention has for its general objects to' improve andsimpliy the construction and operation of mechanism of the character referrcdlto'as' to be reliable ahdreicient in use', comparatively simple and inexpensive v tonxanufacture and install, and so designed that there is a minimum of trouble Varising from :parts getting out of order'.

A morespecific. object 'of' the invention is the revision of one or more lifting or pickup evices arrangedon the oar whereby the pressing of a button by the attendant causes l an velectric motor on the carV to j operate throngh a suitable lwinding device to. first throwthe ick-up device into engagement no ith a sha tdoor or gate 'and then lift or n iove thedoor or gate to open position, 'the Eck-up device being so arranged that it will in operative relation to the gate or door even though a landing is made a few inches aboveor below the Hoor, the closing or lowT ering of the gate or door `being effected by' fthe pressing ofanother. push-button hich `reverses the motor so `as to allow the winding means to, unwind. ,1: 40 TA further object ofthe invention is to' provide a switch which will automatically open thecircuit of the carflifting motor when 'the car lhas been stopped and a shaftdoor or gate is opened. 4 5 With such ob]e cts in vlew, and others which will appear as the description proceeds, the invention comprises various novel featuresof construction and arrangement. of

arts .which will be set claims appended hereto.

Inthe'aceom an n drawines ,which be opened or closed by forthwith particu- 50' arity in the following description and therewithjare two pairs-.of

` 'whicha're connectedwith a lat in the form'of avertiea y disposed bar` illustrate one embodiment;Loi?,` the invention and wherem slnnlar characters oitzreference indicate corresponding parts in all` the views, Figure 1 is a vertical .section of a freight elevator car and a portion of a'shaft`- showproved gate-operating Ameans insta ledfZtliefreon, and showing the parts ofthe gateopning means in Lnorinal position'` byffullflines and raised position' by dotted lnesff4 F ig. 2 'is a-fr tjviev;4 showing the gate-lifting' `mechanism;

rige is a diagrammatic view t of-n1 cuits andelectrical d'r rt ating mechanism Figs; 4 land f5 Vare details the lines and speeta'y; Figgjl;

rior to re easing-fthe 2 having hollow-chan uprig ,1e closing liievemat;

at the front corners constitute gnidesjor the movable parts'of the ""atelliftingdevices,

and the frame" also'zincndesga horizontal beam l on which'isnloillnted afbraced shelf 5 that carries a gateoperating-motor 6,'the drum shaft 'gworrngearingj and?, winding. l1-amai). At the rontguppercoriirs of-,the

car 'frame' are vpulley ,l lifting ca l1gl es 1 1v whicl 9 that 'arec which `extend enti overiavhich run The gate op downwardly througlrthe vertical 4guidesl 3 and each is connected 'at l its lowerendwith icklu-p element.`

a gate-lifting device. B. 'Each 'device-comt prises a vertically` disposed bar onwei ht 12 .100

, gagement with the gate C, which latter has a tooth or projection 19 for engagement byany one of the teeth of each lifting device. After the. initial movement of the weights or slides 12 ot' the lifting devices the links will be in an approximately horizontal position, with the pick-up elements 14 fully projected, and the links and pick-up elements wiil remain in this position during the entire lifting movement of the gate C, as will -be clearly seen from the dot-ted lines in Fig. 1. When the lifting devices B are lowered thc lower ends of the pick-up elcments l-l will strike the pins 18 and thereby he arrested while the weights 12 continue their downward movement until they strike the floor 1, and during this downward movement of the weights 12 the elements 14 are retracted so as to, clear the4 teeth 19 on the oate C. The car can now move up or down ree of he gate. During the retracting move- -ment of the toothed elements 14 the hook 17 automatically engages under the pin 18.

On the bottom of the floor is ay switch D which is in the car-lifting 'motor circuit, and the switch includes a lever 20 which carries a contact 21 bri lgingthe fixed contacts 22, and the lever 'proJects out of Ithe switch' box 23 and is engaged by a spring-lifted pin 2-1 projecting through the floor 1 of the car at a point in line with the lower end of the weight 12,. so that when the latter is in lowered position the switch D is normally closed, and as soon as the weight 12 is lifted the switch D is automatically opened, so that it will he impossible to move the car after the gate-operatingmeans has been brought into play. Breferably two cut-out switches D 'are employed, one at each' front corner of the Hoor." l

At the upper and lower ends, respectively, of the guides 3 for the lifting devices B are switches E and E that are operated by the slides 12, so that the motor is automatically stopped when the gate is fully lifted or fully lowered. These switches will be described more in detail and the controlling push-buttons in connect-ion with the diagram shown in Fig. 3.

The gate or door C is movable in vertical guideways 25 at opposite sides of the doorway 26 in the wall of the elevator'shaft 27,

: the gate C being adapted to rest on the nected with a juncture box 30, from which -be of any approved design so that it is unthat the motor will operate to raise the gate,

landin .or floor 2S when in clpsed position. If desired` the gate may uve a serrated bar 19, as shown in Fig. 7, and the gate-lifting element 14 may have a single projection 15 to engage with the teeth of the bar 19 on the gate, which is the reverse of the ar-' rangement shown in Fig; l. In either case thc gate can be engaged and raised to its full height even though the car he stopped a few inches above or below the landing.

Referring to Fig. 3 of the drawing, m designate the current supply mains which are 'arranged in the elevator shaft and conruns a liexible cable 31 to a juncture box 32 on the car A. From the juncture box leads a supply cable 33 that connects with the motor 6 and with the reversing switchboard 34 carried by the car for controlling the direction of rotation of the armature or worm shaft 35 of the motor. O11 the shaft is an electrically-o erated bra-ke 36 of any approved design. he switch-board 34 may necessary to consider the sameA in detail,"its function being toy rovide the necessary circuit connections or driving the motor in either direction and for stop ing the same. 0n the car are arrang `pushbutton switches 31,38 and 39 adapted to be operfecting the closing of the motor circuit to open the gate, the' closing of the motor circuit to lower the gate, and the opening of the motor circuit in case it is desired tosto the ate at any point in its travel, to avoi acci ent, or 4for any other pu ose. In other words, 'the attendant has 4fu control of the operation. of the gate at all times. The stopping'of the gate 'at the end of its travel is effected by the switches E and E', as hereinbefore mentioned.A These switches are connected with the switch-board 3 4 and through the same with the motor, each switch comprising a trip or bowed spring member 1t() arranged in the guideway 3, as shown in Fig. 1, and thistrip operates on a movable contact 41 that a fixed oontact 42.. When the trip'or member 40 is moved laterally by the weight 12 the lever l1 is moved to open-circuit position, as is indicated by the .switch E', Fig.- 3. When the weight moves out of engagement with the trip the switch automatically closes.

and as soon as the weight 12 passes out of cooperative relation with the lower switch E', this switch closes-but will have n0. effect f on thev circuit for the present. As the ated by the attendant for respectively eftrip 40 of the upper switch E and opens the same, which will cause' the motor to stop. To lower the gebe the attendant presses the pushbutton switch 38, which closes the circuit through the lower Switch E and effects the reversn ofthe motor, whichallows the gate to close, and as the weight 12 moves downwardly the upper cut-out switch E closes and finally the lower cut-out switch E o ens. In Fig; 3 the powerA cut-out Switc es D that are carried'-by the Hoor of the elevator andare controlled by the gatelifting devices B are connected with the juncture boxes 32 and 43, the latter, like the former, bein mounted on the car and bein connected y a flexible cable 44'with the )uncture box 45 in the elevator shaft, which juncture box `leads to thecontroller for the main motor that controls the up and `and performs 'the same function as the switch E to cut out the motor and stop the gate as it rises. The gate 25, Fig. 8., represents the te for the low do'pr opening 26,

and on th1s gate is a cam 25h which strikes the larm f. of the switch F to thereb'y open the circuit of. the motor and1 stop the same when the cam reaches the switch, which occurs at a time when the gate has reached its full open position.

It is important that the member-14 of the pick-up device B be prevented from being the switc projected at all times except when directly' Vopposite' a gate or landing, and consequently a safety switch Gis' mounteljon the car, andn on the guide rail H in the elevator shaft 'are cams h o posite leach landing, so that when G 'reaches a cam k the plunger. g of the switch is pressed inwardly so that the bridging contact g2 engages4 theffixed contacts g3 and places the motor circuit in condition for control by Vthle pushbutton switches 37, 38, 39. As soon as the car moves from the landing the switch G willl auto maticall'y'open until it is again closed when the-car reaches another landing.

From the 'foregoing description taken in connection with the accompanying drawings, the advantages of the construction and method of operation will be readily understood b y tho'se skilled in the art'to which the invention appertains, and 'while 'I have `described the principle of operation, to-

gether with the apparatus which I nofv con- Vg sider 4to be the best embodiment thereof, I

desire to4 have it understood that the apparatus shown is merely illustrative and that such changes may be made when'desired as fall within the scope of the appended claims.

Having thus described my invention, I

'claim as new and desire to secure by Letters Patent:

1. The combination of an elevator shaft, a

car movable in the shaft, a sliding landin gate, a guide on the car parallel with the movement of the gate, a device movable along the guide, a member associated with the device, links movably connecting the 'member with' the device, means vith which the member is adapted to engage whereby the member moves into and-outof engagf t e ment with the gate automatically,by

movement of the device, and operator-controlled means on the car for actuating" the device. Y

2. The combination stationary verticalguideways gaging elements, links connecting the elements with the weights, means coperating with the elements for moving the same laterally into gateengaging posltion at the be-` ginning 4of the upward 'movement of the lweights and retracting the elements atthe vend v4of the downward movement 0f this weights, and means on the car' for operating the weights. y

3` .The combination of an elevator car,

movable in the. guides, gate-engagingele' ments, links cnnecting the4 elements with the weights,v means coperating with the elements for moving the same laterally into gate-engaging position at the beinriin Aof the upward movementof the wei ts' and retracting the elements at the Yend o the downward movement'fjtheweights, and on the car for'operatng the' "wei`glits,saidV N elements havingaseries ofteethw1tha te mounted Aalong the path of movement o .the car and having projecting means withwhich Aof an elevator car, c thereon,' weights movable 1n the guideways, gate-en-- sta tionary vertical gui-des thereon, welghts' 100 the teeth of the elements engage to lift the gate with thesaid weights.

4. In al'n elevator, fthecombinationof a, car, 4v'erticall weights movanected with the weights, a motor-driven winding means on theoarfor the cables, vertically disposed gate-engaging .`elenents',

links connecting each element with anadjacent -weight, means coperating with the elements `for causing the'latter to be projected to g'te-engaging position at the be 'nnin of the vlifting movementpf the weiglis and` to be retracted at the end fof the retum movement f the weights.

'disposed-guides thereon,r le in the guides, cables-con# 5. 'I hecombination of a. car, a. landing ate-having a projectingelement, a movable device on the car, a member linked to the device` a stationary pin on the cui', e hook on the member to normally engage under the pin, whereby the first part 0f the movement of the deviee upwardly causes the member to move into engagement with the projecting means on tlmJ gute, and means on the car with whieh the member engages dln'- ing the last part of the return movement of the device` hereby the member is retracted from the gate.

6. The combination of an elevator cnr, a landing gate, a guide on the car, :i vertically,7 movable device in the guide, a member having o. lateral movement to enga-ge anddisengage the gate, parallel links connecting the member with the device, a hook on the member, :in element with which the hook engages and disenga'ges by lateral movement. of the member, and means with which the member engages during the last part of the movement of the device to hold the member against movement with the device, whereby the member is retracted from engagement with the gate.

'7. The combination of an elevator shaft, closing elements for the landings of the shaft, Home having a shorter travel than the others, with a car, electrically operated means on the emfor autonmtically engaging an element to move the same open and closed, nmmmlly operated switches on the car for controlling the running of the, Sil-id electrically operated means, autolnatieewitches on the car foretopping the electrically-Operated means when n closing element having the longer travel reaches the end of 'its movement in either direct-ion, a switehat each landing :it a door having the shorter travel, and means on such door'of shorter/travel for operating the last-mentioned switch to stop the electrically operated means when the said door reaches its fully-open position.

JOHN E. `W. FOGAL.

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