US1010863A - Electrically-operated elevator-gate mechanism. - Google Patents

Description

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Patented Doo. 5,1911.

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o. comu. BLEOI'IIOALL! DPEBATBD ELEVATOB GATE IEUHAIIBI GEANT COLBY, F NEW PARIS, OHIO.

ELECTBICALLY-OPEBATED ELEVATORfGATE MECHANISBL peotclttoa of Letten Patent.

Patented nee. n, 1911.

Application lied October 1I, 1910. lei-tnt No. 586,835.

Toallwlom it may concern: Be it known that I, GRANT Count, a eltizen of the United States, and a resident. of New Paris, in the county of Preble and State of Ohio, have invented certain new and useful Improvements in an Electrlcall -Operated Elevator-Gate Mechanism, of which the following is a full, clear, and accurate specificalloa. 1- l0 The object. of my present invention, broadly speaking, is to provide an eleetrlcally o roblez open at will, elevator-gate mechanlsln wlncll will be positive ill action, strong and durable in construction, easily operated l5 and controlled, simple in all of its warts and vcally of installation, and which can manufaetured and sold at a ycomparatively low price.

More specifically statedV nl v object ls to rovide ll mechanism of the nature above` sei orth whereby the elevator 'atea wllich ard the various hatehways o an velevator 'e aft-will remain closed, regardless of the number of times the elevator ear passes up 8 8 and down, until auch time as shall be desired bythe operator of the elevator car. alld then only providing the lloor of the elevator car is even, or nearly so, with one of the lloorsl of the building.

80 Another olrjeet is to provide a mechanism of the character designated whereby the vllrious elevator-gates which guard the hatchways throu 'h the various lloors will remain c osed nati such time as designated b v the I8 operator when tlle lloor of the elevator car in near one offthe floors of the building, such designation being: accom llixbed b v the pressure ol a button or the li te. mailing all electrical coluloction. which will causo the gate at. that lloor ttlbe opened cha'trically.

Utherqobjeets and particular advantages of tnv invention will be brought ont and nnlde apparent in the course o the l'l-llowlng lhlscrlplion when taken ill conn-rlich with the accompanying drawings l'ornlilll: a

parli of this specification.

(lne manner for carr vin,1r out the objects of my invention in a nactical nlanncr and that, which in practice have found to be the unisiy desirable null satisfactory is shown ill the accompanying drawings, in which Figure l is a front clevlltioll of certain parts of nl v invention. showing-saule in oonnection with various tloors of a building. the

bb elevator ahaft, and the gates for the variolm oors. "ien 2 is a perspectiva view o" substantially the same arts as shown in Fig. 1 with the addition o the elevator carto operate between the various floors. Fig. 3 shows a side elevation of certain features of the inso vention, but more particularly showing the electrical connections. Fig. 4 is an enlarged detail sido elevation of two of4 the electrleal contacts showing their relative positions with re ation to each other. Fig. f5 is an a5 enlarged detail showing a front; elevation of the latch for controlling the elevator gates; Fig. ti is a side elc"ation of the latch in connection with the cani carried by the elevator ear; ["i". 7 isa viewof thesanle parte shownin 70 Fig. (i but ill this instance showing thc latch engaged. Fig. S a perspective vie'f.' of onc vof the catches lor holding.: the gates open.

Fig. 9 is a side. elevation of the ctltch shown in Fig. 8 and IShowingr saule disengagcl'l. 75 Fig. 10 shows' a side elevation of the. slime catch engaged. Fig. ll allows a front eleva.- tion of one of the circuit breakers connected; alnl Fig. l2 is a lside elevation of one of the circuit breakerl disengagwl. 80

Similar indices denote like parte throughout. the lseveral views.

In ordc'r to clearly explain the construe. tloll and thc yo eration ot nl)l invention I have shown it nl connection with au clevator-car having' a lloor or body the two sales, or vertical bars. n and 1' extendingl from the cenlcr ol the sides. and the crossbar A. Extending u i l'roln the center of crow-bar A' is llle caille ll. b v which the 90 cal' is ellis-cd and lowered ill any well known manner. l

und (7' llcnolc lllc tno idc'posllt having guides b v which the elevator car is guided dircetlv up lllld down'through thc shaft 05v fornled lhrouL'lrthc various floors ll. E and lf of a building'. Suitable corner posta may also be lrovided, as for instance posts v(i.

ll. l and J. although these are not eseential to nl v ulveutioll. except that thev provide nicnas 'lol mounting the various` gates hereinal'lcl' mentioned. bilidablc up and dowll ill suitable guideways, between posts ll and l (or between lusts G and J) arethe various gates K. L ont M, one for each floor, which ,105 nrc adapted to rest on the floors ulld close the hatehways of the respective lloors I), E

'lbe several pal-lsl above enlunerated are old in the art and they may bc variouslv Ilo changed as desired to moet varioua condi lt has been customary heretofore to open the various gates manually, or to have them open automatically, or semi-automatically, each time the elevator car )assed any particnhir lloor. I willnow dlescribe the construction by whichr the several rates may be opened electrically, but only w ien the elevator car is near a iarticular floor and then only when desired y the operator.

umeral 1 denotes a bar which extends n and down through the building reaching all of the floors, and it is carried by suitable guides 2, 2' and 2" which nia besecured to ostI or to other parts of tie building as ouml most convenient. Secured to the upper end of bar 1 is a chain or cable 3 which projects up through uide 4, then over sheaves 5 and 6, and tien downward, with the weiht 7 secured to its other end, as indicate said weight being such as to normally raise the bar 1 to its iighest position, there being a cushion spring 19 contacting with guide 4 which prevents the bar 1 from stop in too abruptly when it moves upwar letween each floor a fin er is secured to the bar 1,-these being in icated in this instance by indices 8, 8 and 8" for the res iective floors.

1 umerals 9, 9 and 9" denote the respective ropes, cords or cables which are secured to the gates K, L and M. Said ropes or the like extend upward, to one side, and then downward, each passing over two sheaves 10-10; 10-10"'and 10-10*, respectively, all of said sheaves being located near their respective ceilings as shown.

nmeral 11 denotes` an electric motor which is operative upon the gearing device 12. Mounted on the frame of the earing is the vertically disposed s ool 13 w ich is adapted to be revolved by t ie motor 11 but, by reason of said gearing, at a greatly reduced rate of speed:

Numeral 14 denotes n cable, or the like, having one end secured to the upper end of the bar 1 b means of the bracket 15. From said lirae et the cable 14 extends down under sheave 18 and then out and around spool 13 where it is secured, being of such lenfrth as to allow the proper amount of en: wise movementl to the bar 1.

Secured parallel with post l'but. disposed a slight distance therefrom are the permunent liars 1li, 16' and 16, that is one for cat-h gate K, L and M, respectively. Each of said liars extends from Sonie distance above its respective loor to u considerable distance below that. lloor. Slidably mounted on each of the last. mentioned bars is a latch mechanism, the same being identical with euch other. which l will now describe, referring more particularly' lo the latch mechanism of the lower gate, and indicating like parts for the other gates by similar numerals with exponents, corresponding the lower end of said stem is the shoe 2l which operates up and down on'the liar 1.6. Secured on the upper end of stem .0 is the shoe 22 which has an outwardlyextending loop which is for the purpose hereinafter appearing.' Iivoted at its lower end to guide 21 is the ann 23 which extends up through said loo of the guide 22. Secured on'the upper en of arm 23 is the latch 21 which is dis iosed at right-angles to the arm 23. One end of said latch extends out to the side of the bar 1 and it is provided with a hooked-end which is adapted to engage the under edge of the finger 8,'as indicated in Fig. 7, that'is when t ie arni 23 is parallel with said liar 1. By reason of said loop in the guide 22 the arm 23 may be disposed at an angle as indicated by the dotted lines in Fig. (l, thereby withdrawing the hook portion of the latch 24 from alinement with the finger 8 so that it may ,not be engaged thereby. Mounted on the other end of the latch 24 is a roller 25, which provides a roller contact for enga rement with the cam 26 hereinafter referre to. Said latch is operable by said cam 26, there being but one cam 2G and that is secured to and is continuously carried by the elevator car. The lower end of com 26 is secured to the side of the floor or base A of the elevator car, and the upier end thereof is secured by brace 27 w ich extends therefrom downward at an angle to the floor or base A, as

indicated in Fig. 2. Extending out from guides 21, 21 and 21 are the arms 28, 28' A and 28", res ectively, each having an eye in its outer.I ent in which is secured one end .0f the res ective ropes or cords 9, typo- 9".

A cate is provided for retaining the gates open at their highest elevation after the motor has been cut out, there being one of .said catches for each gate, substantially as that shown in Figs. 8*, t) and 10. 'lhe guides 2,'2" and 2" form each a {iai-t of each of said catches, the faces tif-sait guides being beveled as in Fig. 9, for the pai-pose hereinafter made apparent. liach of said catches includes a llat member formed ot' spring material comprising a lix'ed portion "v which is rigidly'sccuied to bar l, from which extends downwardly the curved poi'- tion ai of considerable length, then the upwardly extending portion 1/ which may lie parallel at times with bar l, and then the y short portion which is lient. out from the upper end tif-part. 1/ to engage the factof the bar' l. Normally said upper portion of the part 1/ stands away l'iom bar l so as not. to engage the guide 2, but it is adapted to be pressed back against. said liar by means of the cani 26.

The electrical arrangements are shown most clearly in Fig. 3, tl'" motor 11 bein shown as located on the second floor, but it may as well he placed oi either of the other floors, or it may lie placeo at any other point as will .bc found inost. convenient.

In the drawings numerals 50 and 51 denotethe two service wires which lead in from lthe vsource of electrical supply, the former being connected directly to the motor while the latter has other connections which will be fully set forth.

Extending above and below each tloor and secured on eah side of the center of the hatchway are the respective airs of fixed contacts 52--522 53--53 an 5ft-54', for the respective floors I), E and F.

Numeral 55 denotes a main wire extend- 4ing from contact 52 upward to` thetop of the building, there being a circuit-breaker interposed therein near thie ceiling above eacliilooi-,said circuit-.breakers being shown most clearly in detail views in Figs. 11 and 12, each comprising a fixed member 56, and the sliding member 57, the latter being carriedin the han 'ers 58 und 59. The upper .end of the mein )er 57 is turned out tit-right anglesforming the horizontal tinger 60.

Secured to the upper part of each gat-e, for instance gate K, iii the arm (l1, saine having an otlset whereby it. extends out be 'ond the gate, clearing tie hangers 58 an 59 and ada )ted to engage theunderside of tin er 60 or the purpose of liftin the neem er 57 out of contact with inem r 56, as in Figa-'12.. fire 55 is of coursebroken at each of said circuit-breakers, one end thereof being secured to member -56 and the other end being secured to hanger 5B (or 59). Now when member 57 is lifted up the circuit will be broken at that point, and when it. is down the circuit may pass there.- through. A second wire, (i2, extends from contact 52 to the top of the building same being. connected to service wire 5l. At tloci' l) a branch wire 63 extends ott' from wire 55 to contact 53', tind also from wire 62 a branch wire (i4 extends otl' connecting with contact 535 At floor F 'a branch 65 extends oil from wire 55 to contact 54', and from wire 62 a brtinch wire 66 extends ott connecting with contact- 54. As above intimated the service wire 51 is connected to the inain wire 62. and wire 67 extends from wire 55 to the motor, that is to the opposite pole ot the inotor from thaty of wire 50.

Nuiuerals (i8 alnl (it) denote the two niovable contacts which are of like construction but theyare oppositely disposed to the al'orenientioned or permanent contacts, and said contacts (3S and 69 are carried on one edge of tliel floor A of the car in such position that. as the ear nieves up and down the contact 68 inny impinge contact 52,

53 or 54, and at sante time that contact (it) iinpinges contacts 52', 53 or 54', as is indicated in Fig. 4. Said contacts 68 and 69 are located nome distance apart, as indicated in Fig. 3. Located on seine part of the elevator car, within reach of the operator, is a insli-liutton, or switch, 70. Connected wit i the two ioles of the button or switch are the wires l. and 72 which connect with contat-.m68 and 69. respectively. Said pusli-button is of ordinary construction so made that when the button is pressed an electric current may pass therethrough, while normally the'circuit will be broken therein, that. is when the button is released. 'llio operation of my invention is as follows: It is apparent. that the weight of the various gates, K, L and M, will within themselves normally retain them lowered or closed, as shown in Fig. 1, and in the upper part of Fig. 2. Also it is apparent that the elevator car may be. operated up und down 'from the top to the liottoin of the building, or vice versa, without operating any ot' said gates and without'anv attention on the part ofl the operator. And it will .he impossible for the operator of the carto cause eitht i' of the gates to be raised, electrically, unless the floor of the car is near to or even with one of the floors of the building, and it will also be observed that only one of said gates may be so raised at one time, regardless of the number of gates there may be. With the above clearly in mitici suppose. now for instance, that as the car approaches floor E then contacts 68 and 69 wi l connect with contacts 53 and 53', Iand surface of tloor E, yet. even then the gate will remain closed, but if the operator at this time press the button or switch 7U then the electric circuit will be established which will operatethe motor 11, that. is to say the motor will then be connected with both of the service wires 50 aiid 51,-tlie former directly, and the latter tl'irougli wire 6:2 and wire`64 to contact`53, then through contact 68 and wire 71 to the button 70, then through wire 72 to contact (19, then from the latter to contact 53' to wire 63, and from the lutter to wire 55 and then to the niotor i1 through wire G7, thereby completing ythe circuit, and ot' course causing tht` motor to operate and. turning the spool 13, thereby causing Athe cable ll to wind thcrcarouiul and resulting in drawiinr the bar l downh H y ward endwise, tliereli \r raising weight 7. as in. Fig. Now as thc har l is heilig lowered while the elevator car is al floor E it is evidentv that the cani Qt'rwill. previously. have pressed the latch .24 to such position that as bar 1 moves' downward the linger S', carried thereb will en said latchi24 asin Fi 7, theiieb carrgyaiie the latch inechanis downw'ar therewit which of course will result in pulling the rope or cord 9 and a causing the te L to rise as the bar 1 descende. As t ie gate rises to the height deaired then the -arm 61 will engage the finger 60 thereby lifting the member 67 ont of contact with member 50 thereby resultin in 10 breaking the current at that point an of course sto ping the operation of the motor, and there y stoping the upward movement of the gate. ow if no catching means we re provided it is evident that as soon as the power was cut ofl from the motor that the gate would immediately drop back to its closed position, but the catching device is so placed that it comes into action as soon as the current is broken by the said circuit breaker. Now as the bar 1 descends then the curved portion ai of the catch will impinv the cam 26 which manifestly w'll s ring the part y toward the bar 1' causin t e upper portion of part y to engage sai 2B bar 1 and then slide down over the bevel of guido 2' and finally spring ott' of the lower edge of guide 2' simultaneous with the breaking of the current, therefore as the gate starts to drop then the upper portion 80 of art y of the catch will engage under gui e 2 and hold all of said parts in osition as shown between floors E and in Fig. 2. Now as the car leaves either of the floors or landings, for instance floor E, going 85 in either direction up or down, it is evident that the contacts 08 and 69 will be separated from the stationary contacts 53 and 58', re-

ively,for instance. Simultaneous with t e above the cam 26 will. release the flat spring member o, ai, y, and allow it to spring y back releasin it from the guide 2', thereby allowing the ar 1 to be lifted up to its limit by the weight 7, and allowin t e gate then open to drop back to close position. As t ie gate starts back to closed position it will release member 57 and allow it to drop down in contact with member 56, again connecting theI electric circuit at. that point. In fact as the car leaves floor E (or any other floor) BQ all of the devices will automaticnll assume their normal positions, substantial y as indicated in Fig. l. It is also evident that the saine thiol; may occur at each floor as that just statei as occurring at floor E.

55 l desire that it be ully understood that various changes may be niade in the several details of construction herein s'hown and described, and that inialificatious nml substitu tions may be incorporated within the limits l0 of' the invent ion without departing from thc .spirit of my invention or sacrificing any ol' the advantages thereof.

llaviug now fully shown the liest ex amplification of uiy invention to me known 66 at this time. what I claim and desire to secure by Letters Patent of the United States, is

l. An electrically operated elevator gate mechanism comprising the combination with a plurality et' gates each normally closing an entrance to an elevator shaft, and an elevator-cnr movable in said shaft; of a bnr extending from the top to the bottom of said shaft regardless of the number of gates, n weight normally retaining said-bar in its highest position, a motor adapted to lower said bar, an indeiendent stationary bar for each lloor locat parallel vwith the first named bar and extending above and below its floor, a latch mechanism slidiible on each of said independent bars and comprising a stein, a' shoe carried on the, lower end of the stein, a guide having an outwardly extending loop, an arm 28 pivoted at the lower cnd to said shoe and extendin u through said loop of the guide, a iatcii member secured near its center to the upper end of said arm 23 and having a hooked end located near the first named bar, a

finger secured to the first named bar which is adapted, under certain conditions, to be engaged by said latch member, a roller mounted on the other end of said latch member, a cam carried by the elevator-car and adapted to press against said roller to move thc hitch member into position to be engaged by said finger, means carried by the elevator-car for starting the motor at the will of the operator vhereb the latch mechanism then pressed by sait cam will be engafred by said finger as the first named bar is owered by the motor a-nd *hereby raising the gate at that floor, substantially as set forth.

2. An electrically operated elevator gate mechanism comprising the combination with a plurality of gates each normally closing an cnt rance to an elevator-shaft, and un elevator-car movable in said shaft; of u. single bar extending the full length of the elevator-shaft and adapted to be operated vertically. a weight noriiuilly rctainin said bar in its lii liest position, a motor iii iipted to lower sait bnr, an independent stationary bai' for euch gate each extending above and below the floor at which it is located, a latch mechanism mounted on cach of said stationary liars, means carried at each floor by tho -first niiined bar for engaging said latch' nierlianisiii, a s stem of electric wirling wliich'is normal y broken, means carricd'by the car for completing the electric circuit. if desired by the operator of the car but only when the cnr is ncar'one of' the floor landings, a drnni adapted to be revolved by the motor. a cable adapted to be wound oiitlie drum. the other end of said cable being attached to the first named liar whereby .said bnl' will be lowered` when tlic motor is operated, a flexible connection beizo lli

:,oiom u tween each of said latch mechanisms and its gate wheiieby as a latch mechanism is engaged by the first named bar the ate located at the same floor as is the e evatprcar will be raised, and means for breaking the electric circuit when the gate has rcached'the height desired, all substantially as set forth.

3. An electrically operated elevator gate inee anisin comprising the combination will. a plurality of gates each normally clos ng an entrance to an elevator-shaft, and an elevator-car movable in said shaft, of a bar extending from the to to the bottom of said shaft regardless o the number of ates, a weight normally retaining said bar 1n its highest position, a motor adapted to lower said bar, a latch for each gate, nn independent bar for each gate, each latch being slidable on one of said indenenrlent bar, a

GRANT oo'LisY.

Witnesses:

` ltoimirr W.'RANDLE, l R. E. Rascals.

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