US1582966A - Elevator - Google Patents

Description

May 4,1926, M8296@ E. S. BRINKER ET AL ELEJATOR Filed March 30, 1925 7 Sheets-Sheet 1 May 4 i926. LSSZQGE E. s. BRINKER ET AL l ELEvAToR `Filed March 50I 1925 7 Sheets-Sheet 2 Enga 5 n MyM/ZM @we www@ E. S. BPJNKER ET AL ELEVATOR Filed March 50 .may 4; w26.,

E.. S. BRINKER ET AL Filed March 30 l 1925 ELEVATOR Y Sheets-5heet 4 May 4 ,1926.

E. S. BRINKER E T AL ELEVATOR Filed March 30, 1925 '7 Sheets-Sheet 5 May 4 9 i926.

E. S. BRINKER ET AL ELEVATOR '7 Sheets-Sheet 6 Filed March 30, 1925 May H926.

E. s. BRINV'r-:R ET AL ELEVATOR Filed March 30, 1925 7 Sheets-Sheet '7 o m.. MMC? A TTORA/EZT lifley el.,

EL'WOD BPJNKER, @E ETE'WL JERSEY, ASESGBTP TG Skil N. Y., A CORPORATQN GF 'NEW 170B i ELEVATGB.

Application -led March 30, 1925.

and Joim l-LxvILAND, citizens ot the United States, residing, respectively, at Pill iiount l'rosg'iect Avenue, Newark, New 0Vlerand l looraern Avenue, Jersey City, New Jersey, have invenred certain neiv and usei'ul improvements in Elevators, oi which the following is a specification. re' ence ce ing had to the accompanying drawings, 'i'orining a part hereof.

rihis invention relates particularly to the operation ot the sha-tt doors o'i elevators and tor its general object the provision ot improved povfer actuated means for the @eration ot such doorsunder such control ot the operator, whereby the doors shall be opened and closed quickly. rihe invention is concerned not only with the construction oi' the noiver devices and means :tor initiating' and controlling; their operation, but also with interlocking devices to prevent the movement oi the trein any fioor When the sha'tt door is ogen; ineens whereby the op ning of the doors manually is permitted. sliculdthe power devices fail; and means whereby, in an emergency, the increment of the car tron a. floor orlo-,riding is permitted the door is not closed, These main even it 'features of improvement will be explained fully hereinafter, together with minor features oiFA detaiis, with reference to the a coinpanying drawings in which the invention is illustrated as embodied in a convenient and practical forni, and in Which- Figure 'l is a view in sectional elevation showing' in part an elevator car equipped with devices adapted for the practice of the invention the cor being",4 shown ns if with the side nearest the ohscrvcr removed, a portion oi' the shett door being` also shown.

Figure 2 is a. vieu in elevatirm and ou a largeh scale, partly broken out, oi: the poner devices shown in Figure l.

Figure 3 is a view in elevation, partly broken out, and on the saine scale as Figure Q, oi the power devices es seen from the on posite side.

Figure el is a detail view in elevation from Serial No. 19,255.

the saine side as in Figure 3, but on a largerscale, of seine ot the power devices.

Figure 5 is a detail vievv in longitudinal section, partly in elevation, of a portion oi the power devices.

ure is o, detail ton view oil lthe device for poc'tioning the door*operating,` gear ior engagement by the power rack. i

.iigures 5 and i Sheet Q) are detail vieu shouv'iupr particularly the latch devices iter holding in its operative position the tu bular rod which actuates the door engaging devices on the traveler. i

Figures 8 and 9 (Sheet 3) are detail vievvs in section ou the planes indicated by the broken lines c3-8 and Q-Q oi Figure Figure 10 (Sheet is a detail view in section on the plane indicated by the broken line lO-LG oi Figure l.

Figures il, i2, 'i3 and 14t- (Sheet et) are detail vievvs or devices. to be referred to.

Figure l? (Sheet 5) is a detail viewv in section on the plane indicated by the broken line 15-l5 ot Figure 5.

Figure 16 is a detail vieiv on the plane indicated by the broken line 16-16 of Figure 5.

Figures 1T, -8 and 19 are detail vieu's illustrating; particularly some oit the devices involved in the operation of the tubular rod which actuates the door engaging devices on lthe traveler'.

Figures 20, 2l and 22 (Sheet 7) are detail views on a larger scale of the treveler and the door eng-aging devices and some of their associated parts as seen respectively in elevation from the inside of the car, in vertical central section, and in horizontal section.

ln Figure 'i oit the drawings there is shov'n at e a portion of the traine or body of :in eievator car ot ordinary construction, the door beine' indicated et a. lt is assumed that the car is raised and lowered by any usual or suitaliile means which are not necessary to be shown herein, since the present t` is not concerned therewith. The car is sl'ioivn as having a controller box z3 with e. handle 0,4 and interlocking' rod c5 which operates in the. usual manner to 'prem FR u vent the movement of the controller handle to start the car when the shaft door is not in closed position. At each Hoor or shalt landing, there is a suitable door l), which is movable horizontally to open or to close the shaft opening. For clarity this is shown as a collapsible gate but in practice it is usually a sliding door. y

In the embodiment et the invention illustrated in the drawings the power devices by which the movement of the shaftV door or of the car door or of both is eiiected under t-he control of the operator, are actuated by compressed air which may be delivered from any suitable source and through any suitable conductorto atanh e on the car and the air conductor to the power devicesl from the tanl; e through a pipe e which is provided with c a needle valve e2 ior the purpose ot enabling the air to be throttled `as conditions may require and thereby the operation oi' the power devices to be steadied and the acceleration of the power devices to be controlied.

r)The supply pipe e is connected to a 'tourway valve e3 under the control ol the opeator for the purpose et enabling him to direct the delivery of air through one or the other of two branch pipes et, e, to one or the other of two power cylinders hereV inafter mentioned, to cause the power devices to move the door :tor opening or 'for closing as the case may be, the controlling valve serving also to connect that one oix the branch pipes e, c5 through which air is not delivered to one or the other ot the power cylinders, with an exhaust indicated at es. Through valves el, es, to be referred to hereinafter, and a manifold e9, the branch pipes et, e5 are connected, as at elo, ell, to power cylinders f, f', mounted on the car, and shown most clearly in Figure 5, the one exhausting as the other is charged with air under pressure to move the door in the desired direction. The two pistons f2 and f3 are connected by a rack har f, which is toothed vfor a portion oil. its length as shown yin Figure 5, the har beingguided at an intermediate point by suitable guide rollers Assuming the parts to be in the positions shown in Figure with the shaft door closed and about to be opened, the first part ot the movement ot the rack bar ft, before the rack teeth come into engagement', with the co-acting element, eilccts operative en` gafgement between the traveler hereinafter mentiond and the door to be moved through devices to be described. llVhen this 'function has been accomplished the rack har j, in its continued movement, engages a gear g Xed on a shaft g on which is also fixed a sprocket wheel g?. The latter connected by a chain g3 with a sprocket wheel g" which is mounted on a spindle supported on the car and has secured to it a sprocket wheel g5. A similar sprocket wheel lgG is supported on the car at the other side and the two sprocket wheels g5 and g are engaged by a chain gl the ends of which are ceimected, as best shown in Figures l and 2, to a traveier 7a, which is mounted to travel to and iro across the top of the car or r ils 7i.

in order to prevent the possibility oi' 'failure of the rack f* to mesh properly with the gearg in the forward movement of the recit, through possible shifting' oi' the gear'when disengaged from the rack, there is provided a device, actuated by the movement 'oiL` the rack, for correctly positioning the gear as the rachis disengaged therefrom and Vlier holding it in position until it is again engaged by the rack. As shown in Figure 5 and 5^, there is carried bythe piston )"3 a pointed bar f2X which, in the last of the closing movement of the rack har f* to the right hand in Figure 5, enters between tufo pins gs on the side of the gear g anc so positions the gear accurately and holds it in position until, in the lett hand movement of the rack bar y, it is withdiwwn from hctween the two pins. in order to permit such movement of the gear as may take place after it is engaged by the rack bar 'and before the bar f2* is completely withdrawn from its operative position, the bar f2 is provided on one side with a rather wide notch f2 which is so positioned as to permit the passa-ge of the pins therethrough at the proper time.

The traveler 7L is adapted to be operatively connected with the door to be moved, preferably by a device or member which normally is retracted so that in the movement o' the car it will not collide with r portion ot the shaftway, and is capable oft being moved to extended position or into operative relation with the door to be moved. ln the embodiment oit the invention shown the door' engaging device or member consists ot two shoes 7b2, suitablyshaped shown in Figures 1, 2 and 2O to 22, and hung so as to swing` upon vertical axes 'from 'the retracted or inoperative position infxlicatcd by iull lines in the same figure, the two shoes being spaced apart, when in operative position, so as to receive between them the co :ic-ting' device or devices on the shui't door, as shown at in Figure l. Ari/ns 71." on the shoes lf" are provided with rollers ,lit adapted 'for Contact with a bar or rofl Ii,

preferably tubular, which is hungl hy pivotcd Y arms 1I `trom the supporting framework on top oi" the car and is adapted to he swung romils normal, inoperative position, to it:-` operative position to bear against the rollers if to cause tho shoes ft2 to swing trom their normal, inoperativeposition, to their oilqenin tive position, against the pressure the springs h5 which hold the slices normally in their inoperative position.

its the her or rod el extends across the top oit the car lil() Lil) (lll

Lesiones se.

throughout the length oi' travel of the treveler 7i it Will5 While in its. operative position, hold the shoes l72,2 in their operative position throughout the movement of the traveler and until releaset es hereinafter `Xpleined.

T he rod har i' nioved to operative position at. the initial inovenientof the rech l er f, before thit rac-l1 1oir engages the ,eear g, ley the devices noiv to he described. The rech her is provided ivith :i pin f, shown in the dotted lines` in Figure. 5 and l5, which, in the init-inl inovenient of the her, coacts ivith zi tori/ed, -nin-like plete, having tivo unequzjiY lingers f8 and f and carried hy zi shaft flo. The hitter hes secured there vfith en erin f which has connected thereto n link fm which in Vturn is connected through e connection piece fla with e lever 7m. The other end of the lever fl* is connected, through e. slotted connection, ivith e sliding` het fi". rlie letter, particularly Fig'- ures 2, 3, l?, lS and il), has on its under side n.. toe or projection f vfiiich, in its i i nent, ene'ngres n spring' .l

i i loten 7"", the hitchyielding in the opposite inoveinent of the lia-r fh" to pcrniit tie toe f1 to pass hy the hitch. rlhe latch or pivoted stop f is inounted in un erin j, ivhich is supported hy a. vertical, spring, pressed shaft fw, Which also carries in erin )F20 -novided with e roller f adapted for coection with an e 'in 2'? on the swinging loer e'. Thereby, in the initial inoveinent o' the reel; har j, the bnr is caused to nieve longitudinally and, through the described devices, to siving` the rod 'i troni its inoperative to its operative position and thereby to move the shoes la? to their operative positions, in engagement with the door o.

ln order that the lozir niiiy he held in its operative position until released iis ivill he described, the bnr 'z'. is provided, ns shown ifrures G :1nd i, with n stop i :tor engrzigenient hy zi spring pressed hitch 171, supported hy n liruclet if (sec. right hund cud -igure ihe ineens 'tor disenguging the latch und releasing; the liar i vvill now hel described. ',lhere is pivoted on the traveler z. zi spring pressed trip i (see Figures i2, 2O and 2l) vfliich. :is the 'rnveler reaches the liuiit ot inf; nioveineut` to the right hond in Figure .3i stands under the hitch i" und et the suine. linie collides with n lined pin fil". 'ihei-fehy the trip is rocked und liits the hitch i", thereliy releasing` the rod i. 'llhc trip stzinds iornielly in an inoperutive position find is nioved to operative position only when it strikes the pin 10. It will he understood that ivhen the har z' is released as above described it. ivill perinit the shoes or door engagging devices to he returned by their springs to their retracted or inoperative position, Wherehy the. door, es it reaches its closed position, isV disengaged iironi the traveler and the traveler free to nov-c with the cnr and is in readiness to he engaged with another sliniit door :it the ivill of the operator.

'llhe occasion n'uiy ari e, es in the event oi failure ol oir pressure, ivhen it is desirz l l1 that the operator iney nieve the door indepencently ot the power devices. ln order that this nniy he done without requiringthe operzit r to nieve the povver devices es vvell es the door it is necessary to provide nienns whereby the operetorinuy disc nnicct the door troni the povi'er devices. Accordingly there is provided on the er a device to he actuated hy the operator, such :is a.` pedal jf', hy pressure on which, through levers j zuid jg, e rod j is pulled down und zi hell crunk lever j, to on zirni oit ivhich the rod is con nected, is rocked. rhe other :firni olf Yhe hell crzinl; il is connected hy :i rod i5 vv'th u connection piece rlhe connection pi j is ope 'ntively connected through le ivith n sliding` her j* which is pi its under side vfith n. projection y. In the nuivenient of the har il tlic projection y" nnilies contact with :i Aich piece jm on :in erin j ot zi shnt't y which hi. :it its lovfer end zin zii-1n jl with e. roller it 'lor conction with :in erin on the rod 2'.. The liar and the devices through vvhich its inovel nient causes the rod t' to he rocked, are the seine in ull respects as the devices through which the inovenient ot the rod f cause.4 the rod e' to lie roel-:ed and are therefore sulliciently illustrated in NETigures 2 :ind 3 Without enlarged detail vie'vvs which would he identical Witl Figures l?, 18 und rlhe prinniry 'fic t of pressure on the pedal is7 therefore, through the d'fscriliel devices to roch the shalt z' enc. 1'ierehy to ni ive the door engaging devices flag into extended or operative position for engagement n'ith the slnvtt door.`

d secondury eflij'cet olf pressure ou the pedal j is to disconnect the door from the perfor dcvices. VFor this purpose the connection piece j, to which the linl: j is connected, is itsell connected hy n linl; j, with n lever jl shown in Figures l, 2, :ind 1.5. Below the supporting slnrlt y the lever jj is provided with :i projection il? t'or operativo ongegeuieut ivith u piu j ot the rnvh lmr j", :is shown clearly in lie'urc l5, so that the reel: hui' y nioved f-uulicieullv (to the right hund in Figure 5)., to sure discugnigcineut of the ruck liurjlroni the gear g. the uppliciitiou ot the opcrntous hund (o thcgziic, nioveinent ot the ente Ton noiv lic ellected with inoveinent only oil the rear o, the sprocket Wheel (/2 zuid the connected chains and sprockets, Without requiring' inoveinent ot the pistons f2, ,'l"3 nud the overcoming of such nir resistance ns there might he in the cylinders. lt ivill he observed trirtherniord that vfhileJ provision is thus .unido lor the movement of the shaft door either manually or by power, the interlock with the controller is maintained whether the shaft door 1s ,moved by hand or by power, and the car 'means actuated b f the movement ot the door operating devices or some part moving with the door, to cut oil' the admission ot' air to the power cylinde s, to retain the air therein to cushion the movement ot the pistons and therefore the movement et the door, and finally, to readmit the air so as to permit the complete closing ot the door when its momentum has ,been reduced. On the vshall g* which carries the first sprocket wheel g2, as snown in Figures 4, l() and 15,..

there is fixed a gear L which theretore rotates with the sprocket g2 in the movement et the door.V ln' suitable guides supported on .the car there are mounted two raclr bars, one, 7c', above the gear 7c, and the other, c2, below the same. Both rack bars are always in engagement with the gear Z3 and therefore are moved by the same in opposite directions, and are toothed only tor a limited portion ot their lengths, as shown in Figure el. On the bar 7c are pivotally mounted, relatively close together, two overbalanced, oppositely acting latches 7e3 and kt, each having a shoulder as at 7c?, and each provided with an adjustable bearing 706. The function oit the latches 7c3, 7a4 is to eli'ect, through devices to be described, a closing or a partial closing ot the valves c7 es which control the admission of air and the exhaust oi air `from the resi'iective cylinders. The bar 7a2 is armed with blocks or contact faces L, les, also relatively close together' but spaced somewhat further than the latches 7c3, 7a4. To the spindle cT1 of the air controlling valve el is fixed a lever 012, the lower portion cl3 ot which is connected by a link cm', with a lever c tired to the spindle @S1 olf the valve c3. 'lhe lever cl2 is 'Formed with or has secured to ,it a double cam shaped arm 01". lt will now be. seen that'in the movement ot the rack bar 1 lo the lett. hand in Figure -l-, through the rotation ot tlie gear with the sprocket (/2 the latch Z5 will slip over the upper end oi' the lever 12 without disturb* irg the same, while the latch kt, as its shoulder /c .makes contact with the end ot the lever e and its adjusting stop la rests against the upper end ot the lever, will cause the lever to swing :trom it-s full line posi.- tion in Figure l to the left hand position indicated Vby broken linesthereby closing or partly closing the valvesc7 and es, rlhe crossarm e will be swung to a corresponding` inclined position so that when it is reached by the restoring bloclr ,t8 in the op posite movement olf the rack bar 12, as the door approaches the limit et its movement in a correspendingl direction, the restoring block cs will maize Vcontact with the inclined cross arm c16 and will restore itrtoV its hori- Zontai posit-ion, the lever e to its vert-ical position, and the valves c7 and e8 to their open condition, thereby releasing the air from one cylinder and readmitting air to the other and permitting the door to move with reduced momentum to its extreme position. ln the opposite n'rovement ot the door the valves willhe moved to closed position by the latch 7e3 and will laterbe moved to open position by the restoring blocl: 7c?.

lt will be understood that in the normal pci-ation of the elevator the car is moved under the control et the operator to the desired landing and is brought to rest in the usual manner through movement of the controller handle et. Through the air controlling valve e3, the operator then admits air to the cylinder f, the first effect of the movenient ot the piston being to roch the rod z' so as to move the normally retracted door eng, l.ging `devices h2 into extended or operative position, in engagement with the coacting portion Z/ ot the shaft door o. lhrough the connection of the shalt z' with the interlocking rod a5 the latter is moved at the same. time to lcclr the controller in neutral position so that the car cannet be moved. ln the continued movement et the piston f2 the rack f1 engages the gear g and through the described connections eifects the movement oit the door from the closed position shown in Figure 1 to the fully open position. As the door approaches the fully open position the valves e7 and es are closed or partly closed, cutting otl the admission ot air to the cylinder j and closing theV exhaust ol the cyli nder j so that the continued n1ovement ot the pistons and therefore of the door cushioned until, as the door approaches its liully open positien,the valves are opened, relieving the pressure in the cylinder' and reaihnittiuo sutl'icient air to the cylinder f to complete Ythe opening movement oit the door but with a reduced momentuu'l. lt at any time the air should tail, making it inipc'issible to ogen the door by the power devices, the operator by pressure on the pedal L can ell'ect the engagement ot the door engagim;v devices with the door tlu'ough the rocking ot the rod c' and at the same time lock the cont-roller so that the car cannot be moved. Then the operator can move the door to open it and thereafter to close it, unlocking the controller as the door closes and the door engaging devices are released,

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@essence so that thc movement ot the car can be continned under the control oi the controller a3.

lt will be understood that various changes in details oi" consJ .ction and arrangement can be made to sert dillercnt conditions of use ami that, except as indicated in the claims, the invention is not restricted to the particular construction shown and described herein.

ldlc claim as our :invention:

l. in an elevator, the combination or a door, a car, a traveler mounted on the car, means to ellA i operative engagement between the traveler and the door, a power cylinder piston, transmitting devices between the piston and the traveler, means under the control of the operatorto admit air under pressure to the cylinder, said means including a cutoli' val, and means actuated with the transmitting devices to close saitl alve so to prevent thc admission of air and thereafter to open the same,

to check and thereatter to continue the inovenient of the traveler.

ln an elevator, the combination ot' a. door, a car, a ti .veler mounted on the car, means to eilect operative engagement between the traveler and the door, a power cylinder and piston, transmitting devices between the piston and the traveler', means under the control ot the operator to admit air under pressure to the cylinder, said means including a cutoii' valve, a dcvice actuated with the transmitting devices in one direction to close said valve so as to prev-ent the admission ot air and a device actua-ted with said transmitting devices in the opposite direction thereafter to open said valve.

3. ln an elevator, the combination of a door, a car, a traveler mounted on the car, means to eiilect operative engagement between the traveler and the door, a power cylinder and piston, transmitting devices between the piston and the traveler, means under the control o' the operator to admit air under pressure to the cylinder, said means including a cutoil valve, a gear actuated with the transmitting devices, a rack bar engaged by the gear, an operating lever for the valve, and a device carried by the raclr bar to engage the operating le ier and shift the valve.

et. in an elevator, the combination ot a door, a car, a traveler mounted on the car, means to eilect o1 erative engagen'ient between the traveler and the door, a power cylinder and piston, transmitting devices between the piston and the traveler, means under` the control of the operator to admit air under pressure to the cylinder, said ineansincluding a cutoti' valve, a gear actuated with the transmitting devices, a raclr bar engaged by the gear, oi'i'erating lever or the valve, and a latch pivot-ally mounted on the bar to effect operative engagement with the. lever in one direction of movement and to slip over the same in the opposite direction oi"I movement.

5. ln an elevator, the combination of a door, a. car, a travelo' mounted on the car, means to effect operative engagement bc`- tween the traveler and the door, a power cylinder and piston, transmitting' devices between the piston andthe traveler, means 'under the control of' the operator to admit air under pressure the cylinder aid means including a cntoii' valve, a gear actuated with the transmitting devices, a bar rack ei'igaged by the operating lever for the valve, and 'two opposed latches pivotally mounted on the racl'; bar to engage the lever operatively in opposite directions et movement or the rack bar and alternately to slip over the same.

6. ln an elevator, the combination of a door, a car, a traveler mounted on the car, means 'to effect operative engagement bctween the traveler and the door, a power cylinder and piston, transmitting devices between the piston and the' traveler, means under the control ot the operator to admit air under pressure to the cylinder including a cutoli valve, a gear actuated with the transmitting devices, racl; bars engaged by the gear on opposite sides ot' the axis thereof, an operating lever for the valve, a latch carried by one of said rack bars to enga-ge operatively the operating lever to close the valve, and a restoring` device carried by the other raclr bar thereafter to engage operatively the operating lever to open the valve.

7. ln an elevator, the combination ot a door, a car, a traveler mounted on the car, means to etlect operative engagement between the traveler and the door, a power cylinder and piston, transmitting devices between the piston and the traveler, means under the control ot the operator to admit air under pressure to the cylinder including a cutotlI valve, a gear' actuated with the transmitting devices, rack bars engaged by the gear on opposite sides of the axis thereof, an operating lever for the valve having a cross arm, a latch carried by one ot the rack bars to engage operatively the operating lever to close the valve, and a restoringl blocli carried by the other racl; bar to engage operatively the cross arm or" the operating lever to open the valve.

8. ln an elevator, the combination of a door, a car, a traveler mounted on the car, means to eiiect operative engagcnient between the traveler and the door, opposed power cylinders and pistons, transmitting devices between the pistons and the traveler, and means under control. or" the operator to admit air under pressure to one of the cylinders and to open the exhaust of the other oi' the cylinders.

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9. In an elevator, the combination ot a door, a car, a traveler mounted on the car, means to effect operative engagement between the traveler and the door, opposed power cylinders and pistons, transmitting devices between the pistons and the traveler, a source oi air under pressure, branch pipes severally connecting the source or air under pressure with the cylinders, and -a single valve under the control ot the operator to admit air to one ot' the cylinders and to open the exhaust ot the other of the cylinders.

10. In an elevator, the combination oit a door, a car, a traveler mounted on the car, means to ellect operative engagement between the traveler and the door, opposed power cylinders and pistons, transmitting devices between the pistons and the traveler, a source of air under pressure, branch pipes severally connecting the source oit air under pressure with the cylinders, valves includedin the-branch pipe connections to the cylinders, and means actuated with the transmitting devices to close the valves and thereafter'to open the same.r

1l. In an elevator, the combination ot a door, a car, a traveler mounted on the car, power devices mounted on the car, means to effect operative engagement between tlie traveler and the door, transmitting devices between the power devices andthe traveler, means operated in the initial movement of the power devices to actuate the means to eli'ect operative engagement between the traveler and the door, and means operated in the continued operation of the power devices lto effect operation of the transmitting devices.

l2. In anelevator, the combination of a door, a car, a traveler mounted on the car,

power devices mounted on the car, means to eiect operative engagement between the traveler and the door, a lever operated in the initial movement of the power devices and connections to actuate said means and gearing operated in the continued movement of the power devices and connections to eilect movement of the traveler.

13. In an elevator, the combination of a door, acar, a traveler mounted on the car` a power cylinder, piston and piston rod mounted on the car, an arm engaged by the piston rod in its initial movement, and con-t nections to eilect operation of said means, a rack bar carried by the piston rod, a gear engaged by the rack bar in the continued movement of the piston rod, and Yconnections to effect movement ot the traveler.

14. In an elevator, the combination of a door, a car, a traveler mounted on the car,

power devices Vmounted on the cai', normally inoperative transmission devices between the power devices and the traveler, and manually operated devices independent ot thepower devices to ellect movement oit the transmitting devices without movement ot the power devices.

l5. In an elevator, the-combination of a Y the power devices and the traveler', manually operated devices independent ot the power devices to ei'lect movement of the transmitting devices without movement oi the power devices, and means actuated by the initial movement oil the manually operated devices to insure disengagement of the transmitting means from the power devices. Y Y

1G. In an elevator, the combination ot a door, a car, atraveler mounted on the car, power devices mounted on the car, mea-ns to effect operative engagement between the traveler and the door, a longitudinally disposed rod mounted to swing toward and from the traveler, intermediate whereby tlie movement oit the rod operates the means to effect operative engagement between the traveler and the door, and means devices actuated in the initial movement of the i power devices to swing the rod to operative position.

17. In an elevator, the combination of a door, a car, a traveler-mounted on the car, power devices inoiuited on the car, means to effect operative engagement between the traveler and the door, a longitudinally disposed rod mounted to vswing toward and from the traveler, intermediate devices whereby tlie movement of therod operates the means to edect operative engagement between 'the traveler and the door, means actuatedV in theV initial movement of the power devices to swing the rod to operative position, a latch to hold the rod in operative position during the movement oit the traveler, and a device actuated in the movement of the traveler to disengage the latch and release the rod to permit disengagement between tlie traveler and the dooi.

18. In an elevator, the combination of a door, a car, a traveler mounted on the car,

power devices mounted on the car, means to e'ect operative engagement between the traveler and the door, a `longitudinally disposed bar mounted toswing toward and from the traveler to actuate saidmeans to effect operative engagement between the vtraveler and the door, a longitudinally posed bar mounted to swing toward and from the traveler to actnate said means to etect operative engagement between the traveler and the door, a longitudinally movable bar operated in the initial movement 'olf the power devices, a pivoted latch daptcd to be engaged lov the bar in its movement, and means operated by the latch in the movement ot the last named bar in one direction to canse the rod to swing to operative position in relation to the traveler, the latch being tree to yield in the opposite movement of the bar.

20. ln an elevator, the combination ol a door, a car, a traveler mounted on the car, means to et'fect operative engagement between the traveler and the door, a. longitudinally disposed rod mounted to swing toward and trom the traveler, intermediate devices whereby7 the movement ot' the rod operates the means to eltect operative engageinent between the traveler and the door, and manually operated means to swing the rod to operative position.

2l. ln an elevator, the combination ol a door, a car, aV traveler n'ioin'ited on the car, means to eilieet operative enovgement be- DLL tween the traveler and the door, a .longitudinally disposed rod mounted to swing toward and from the traveler, intermediate devices whereby the movement of the rod operates the means to effect operative engagement between the traveler and the door, transmission devices to effect movement or" the traveler, and manually operated means to swing the rod to operative position and thereafter to aetnate the transmission de vices.

22. ,in an elevator, the combination ot a. door, a car, acontroller for controlling` the movement ot the car, a normall)7 retracted device on the car movable into extended operatingl position with respect to the door, mechanism for moving said device to extended position, power operated devices to actu-ate said mechanism, manually operated devices to actnate said mechanism, and means intermediate said mechanism and the controller whereby the controller is locked in nenti-al position when said mechanism is actuated to move said device to extended position.

This specification signed this 2'? day oit llirch A. l). 1925.

JOHN R. HAVLAND. ELW'OO S. BRINKER.

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