US1199175A - Elevator. - Google Patents

Description

H. GUMPEL.

ELEVATOR.

"woman man SEPT. 1. 1914.

Patented Sept. 26; 1916.

5 SHEETSSHEET I uwsuron W A rromvzr H.- GUMPEL.

ELEVATOR.

APPLICATION FILED SEPTA, 1914.

5 SHEETS-SHEET 2.

WITNESSES: IN VEIV TOR I Ar'mmuzr H. GUMPIEL.

, ELEVATOR.

ABPLICATLON FILED SEPT. 1, 1914.

1,199,175, Patentedsept. 26,1916.

' 5 SHEETS-SHEET 3.

WITNESSES: v 4 //VI/E /VTOR H. GUMPEL.

ELEVATOR.

APPLICATION FILED SEPT- l. 1914.

Patented Sept. 26,1916.

WITNESSES.-

V claims.

UNITED STATES PATENT OFFICE.

HERMANN GUMPEL; OF CHICAGO, ILLINOIS.

ELnvAroR.

Specification of Letters Patent. Patented Sept. 26, 1916.

Application filed September 1, 1914. Serial No. 859,602.

T all whom it may concern Be .it known that I, HERMANN GUMPEL, a citizen of Liibeck, one of the States of the German Empire, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Elevators, of which the following is a description.

My invention relates to mechanism for carrying passengers or material from one floor in a building or inclosure-to another.

. The object of my invention is to provide a simple convenient and highly safe and eliicient device of the kind described, employing a plurality of separate cages in a single elevator well or shaft so as to simultaneously serve a plurality of floors or landings.

To this end my invention consists in the novel construction, arrangement and combination of parts herein shown and described, and more particularly pointed out in the In the accompanying drawings wherein like or similar reference characters indicate like or corresponding parts: Figure l is a rear elevation of a simple form of cage for my device with parts removed to more clearly show the construction. Fig. 2 is a side elevation of the same with parts-removed and broken away to show the interior of the cage.

controlling the general movements of my device. Fig. 6 is a diagrammatic view taken substantially on line 66 of Fig. 7 showing the electric circuits for controlling the aux1liary movements of the cages in one direction. Fig. 7 is a transverse sectlon of my improved mechanism taken substantially on 1 line 77 of Fig. 6. Fig. 8 is a View similar to Fig. 6 but showing a diagrammatic section on line 88 of Fig. 7 of the circuits for moving the cages in the opposite direction to that shown in Fig. 6. Fig. 9 is a diagrammatic view of the electric circuits for controlling an elevator well of substantially the usual or any preferred form with the floors or landings 22 adapted to be served bythe cages 3 and 4 positioned within the well and arranged to' simultaneously cooperate with any of the adjacent landings 2-2 desired. The cages 3 and 4 are preferably provided with suitable independent controlling motors 5 and 6 for moving the cages inv the well arranged to permit of variation in the distance between the cages to correspond with the spacings of the landings 22 so that at each landing the cage cooperating therewith may be brought to substantially the level of the landing;

Any suitable means-may be provided for controlling the position of the cage in the well 1 for moving the sanie to cooperate with the respective floors. In the form shown a pair'of vertical guides 'Z.7 are provided in the well 1 and a frame 8 is mounted upon the guides 7 and arranged to move longitudinally thereof. In the preferred construction the cage 3 is rigidly secured to.

the lower end of the frame 8 and suitable cables 9 and 10 for moving the cage 3 are rigidly attached to the frame 8 in the usual or any preferred manner. As shown the cable 9 passes upward from the frame over a sheave 11 thence downward to the winding mechanism 12 controlled by the motor 5. The cable 10 passes over the sheave 14 and thence also to the winding mechanism which is so constructed and arranged that the 'strain upon the cables 9 and 10 will be substantially uniform at all times. I

The cage 4 is mounted at the upper end of the frame 8 and arranged to move vertically therein so that the relative vertical position of the cages and 4 may be altered to correspond with the landings 2. In the preferred form shown suitable guides or shoes 16 and 17 are provided at the upper and lower ends of the cage 4 respectively adapted to cooperate with the side bars 18 of the frame 8 to accurately control the transverse position of the cage 4. Any suit able means may be provided to move the cage 4 in the frame. As shown suitable cables 19 are rigidly attached to the upper portion of the cage 4 each passing through a suitable opening 20 in the top bar of the frame 8 thence over the sheave 21 and down to the winding mechanism 22 of the motor 6 thence the end cables 19 or an independent I cable 23 extends upward over the sheave 24 to the counterweight sheave 25 thence upward and over the sheave 26 and down to the winding mechanism 12, thus employing a single counterweight 27 for counterbalancing both cages and permitting the cage 4 to be adj'sted in the frame 8 as may be de sired independently of the cage 3.

Any suitable means may be provided for controlling the operation of the windin mechanism to adjust the cages in the wel Forv this purpose levers 30 and 31 are provided in the cages 3 and 4 respectively to control the operation of the motors 5 and 6. The mechanism upon the cages is preferably so constructed that their cooperation is necessary for any continuous movement of the cages.

Any suitable means may be provided for v controlling the operation of the motors 5 and 6 by the manipulation of the levers 30 and 31.

In the drawings for the purpose of illustration I have shown suitable electric devices for this purpose and to avoid confusion in describing the electric circuits involved I have shown the same in substantially independent diagrams. Fig. 5 shows the circuits forsilnultaneously raising and lowering the cages Without altering their relative positions. Figs. 6, 7 and 8 the auxiliary mechanism for adjusting the relative ositions of the cages and preventing more than the desired movement between them in either direction while Fig. 9 shows the brake mechanism. 7

Referring first to the mechanism shown in Fig. 5, suitable batteries 33, and 34 or other auxiliary source of electric energy are provided for the cages 3 and 4 respectively. The battery 33 is connected by the wire 35 to the trunnion 36 of the lever 30 thence by a connector 37 to a contact 38 upon the lever 30 co5perating with a fixed contact on the cage thence by a wire 43 to a fixed contact on the cage 4 'coiiperating with the contact 46 on the lever 31. The contact 46 is electrically connected to the contact 47 and the wires 51 and 52 connect the contact 47 to the solenoid 54 and thence by wires 55 and 56 to the opposite pole of the battery 33 thus energizing the solenoid 54 and moving the lever 57 to close the double arm switch 53. When this occurs current from the main 50 flows by the wire 58 one arm of the switch 53 and wires 59 and 61' to one pole of the motor 5 from the opposite pole of the. motor 5 by wires 64 and 63 switch 53 and wire 62 to the main cansing the motor to operate" to raise. the cage 3. At the same time current from the battery 34 flows by the wire 65 to the trunnion 44 to the lever 31 which is electrically connected upon the lever. to the contact 45 cooperating with a fixed contact upon the cage the solenoid 68 and operating the lever 71.

to close the double arm switch 72. The closing of the switch 72 causes current to flow from the main 50 by wire 73 one arm of the switch 72 and wires 74, 75 to one pole of the motor 6*.- Current also flows from the opposite pole of the motor 6 by wires 77 and 53 the opposite arm of the switch 72 and wire 76 to themain 60 thereby causing it to operate to raise the cage 4. These circuits are clearly both closed at the same time causing bothmotors to operate simultaneously and simultaneously raising the cages as long as the levers 30 and 31 remain in the position shown. In case however, either lever is moved from the position shown it is obvious that the auxiliary circuits will both be broken thus simultaneously denergizing thesolenoids 54 and 68 and permitting the levers 57 and 71 which are weighted or otherwise arranged to stand in a neutral. position to open the switches 53 and 72 thereby breaking the circuit to the motors and stopping the upward movement of the cages.

' When the levers 30 and 31 are inclined in the opposite direction contacts 38, 39 and 40 of the'lever 30 will register, and coiiperate with-the fixed contacts 77 7 8 and 79 respectively on the cage 3, and the contacts 45, 46 and 47 of the lever 31 will register, and cooperate with the fixed contacts 83,34 and on the cage 4 so that current from the battery 33 will flow by the wire 35,'trunnion 36 connection 37,contact 38 to the fixed contact 77 thence by the wire 82 to the fixed contact 85 which-registers' 'with the contact 47 and is electrically connected to the contact 46. The contact 46 coiiperates with the I contact 84 and the current flows from this contact by the wire 81 to the solenoid 86 thence by the wires 87 and 56 to the opposite pole of the battery 33. From the battery 34 current flows by the wire 65 and. trunnion 44 to the contact 45 registering with the fixed contact 83 thence by the wire 80 to the fixed contact 79 registering with the contact 40 on the lever 30 and connected to the contact 39 registering with the fixed contact 78 on the cage 3 thence by wire- 88 to the solenoid 89 thence by wires 90 and 70 to the opposite pole of the battery 34 thus moving the levers 57 and71 in the opposite. direction to that shown on the drawing and closing the double arm switches 91 and 92. When this occurs current from the main 50 flows by the opposite pole of the motor by wires 61 and 95 the opposite arm of the switch 91" and wire 94 to the main 60. At the same same time current from the opposite pole of the motor 6 by the wires 75 and 99 the opposite pole of the switch 92 and by wire 98 to the main 60 thus causing the motors 5' and 6' to lower the cages 3 and 4. The motors will continue to operate as long as the levers 30 and 31 remain in the downward position as described.

When either of the levers 30 or 31- is moved from the position shown in Fig. 5 or a the reverse position described for moving the cages in the opposite direction to a vertical'position, as for example, the lever 30 in Fig. 9 the auxiliary circuits are broken, the levers 57 and 72return to their neutral position and the circuits to the motors are broken and the brake mechanism operates upon both of the winding mechanisms to hold the cages in position. This movement of the lever 30 establishes a circuit from the battery 33 by a wire 35 to the trunnion 36 thence by the. connector 37 to contact 38 registeringwith thefixed contact 100 and connected by Wires 101, 102 to the solenoid 103 controlling the brake-mechanism-to the' lower cage thence by wire 104 to the opposite pole of the battery 33. At the same time current flows from the battery 34 by wires and 105 to a fixed contact 106 regis tering with the contact 48 on the lever 31 the contact 48 is electrically connected with the contact 49 upon the lever 31 which registers with the fixed contact 107 upon the cage 4 thence the current flows by wires 108 and 109 to a fixed contact 110 ont-he cage 3 which registers with a contact 40 on the lever 30 and to electrically connect to the contact 39. The contact 39 registers with the fixed contact lll'which is connected by wires 112 and 113 to the solenoid 114- of the switch 116 and wire 118 to one pole of suitable brake-mechanism for the lower cage winding mechanism (not shown) and from the opposite pole of said brake-mechanism by the wire 119 the other pole of the switch 116 and wire 94'to the main 60, there-j by setting the brakes for the lower cage. When the switch 117 is closed current flows from the main 50 by wire 73 one arm of the switch 117 and wire 120 to one pole of the shown) and from the opposite pole of said brake-mechanism by wire"121,"the opposite pole of the switch'117 .and'wire 7 6'to themain 60 thereby setting the brake-mechanism for the upper cage. 1 v

If without moving the lever 30 from the position shown the lever 31 is now moved to a vertical position similar to the position of the lever 30, the circuit controlling the brake-mechanism'for the lower cage will not be disturbed. The circuit controlling the brake-mechanism for the upper cage-how I ever will now be established from thebattery 4 by the wire 65 and trunnion 44 com nected tovthe contact 45 which will then register with the' fixed contact 122 from Which the current flows by the wires-123 and 113 to the solenoid 114 then by wire 115 to the opposite pole of'the battery maintaining the brake-circuit closed as before.

now the lever 31 is again moved so as to in same channels as whenthe lever is in. position shown in drawings.

When the lever 31 is placed in a vertical posltlon the circuit controlling the brake 'jcline the lever 'inthe opposite direction to that shown in Fig.9, it is obvious that the contacts'48 and 49 will register with the sin mechanism for'the upper cage will be maintained through the same channel previously described for this position of the lever 31. If now the lever 30 is inclined to the right similar to the position of the lever 31 in the drawings, the contacts 41 and 42 will register with the fixed contacts 128 and 129 respectively and the contacts 46 and 47 on the lever 31 will register with the fixed contact 130 and, 131 respectively thus closing the circuit from the battery 33 by wires 35 and 132 to the fixed contacts 128 and 129 connected by the electrically connected contacts 41 and 42 on the lever 30 thence by wires 133 and 134 to the fixed contact 130 and 131 connected by the electrically connected contacts 46 and 47 on the lever 31 theme by the wires 135 and 102 to the solenoid 103 and thence by the wire 104 to the opposite pole of the battery 33, thus maintaining the circuit for the brake-mechanism for the lower cage closed.

When the lever 30 is inclined in the opposite direction the contacts 41 and 42 willregister with and electrically connect the fixed contacts 136 and 137 respectively. The contact 136 is connected to the wire 35 by the wire 138 and the contact 137 is connected to the wire 134 by the wire 139 so that in this position the circuit controlling the switch 116 and brake-mechanism for the 65 brake-mechanism for the upper cage (notl er cage will remain cl sed through substantially the same circuit as previously described. It will thus be seen that with the levers 30 and 31 in substantially the vertical position shown in Fig. 10 the brake mechanism for both cages will be set, also with the lever 31 in either of the inclined positions described and shown in Fig. 11 and with the lever 30 in a vertical position the brake-mechanism will be set and with the lever 30 in either of the inclined positions described and shown in .Fig. 12 and the lever 31 in a vertical position the brakemechanism will remain set.

Suitable means are also shown providing for independently adjusting the relative positions of the cages in order to finally adjust the cages to their respective landings or to bring either cage into position at a landing after one cage is set. lnthe form shown provide for placing the levers 30 and 31 1n what may be termed an auxiliary position or in position to permit independent movement of either or both cages for certain limited distances. In Fig. 6 I have shown the cages with the minimum distance between them and the lever 30 in position for moving the cage 3 downward while the lever 31 is in position for moving the cage ,4 upward. The respective circuits for this purpose operate substantially independently of each other. As shown the contact 38 on the lever 30 cotiperates with the fixed contact 143 and current from the battery 33 flows by wire 35 to the trunnion 36 through the contacts 38 and 143 and wire 144 to the 1 brush 145 on the cage 4 which is arranged to coiiperate with the contact plates 146, 147

and 148 fixed upon the frame 8 so that as the cage 3 movesdownward carrying the frame 8 the brush 145 Will successively contact with the several plates. The plate 146 is connected by a wire 148 to a solenoid 149 thence by wires 151, 152, 153 and 56 to the opposite pole of the battery 33 thus energizing thesolenoid 149 and moving the lever 150 to close the double arm switch 154. lVhen this occurs current flows from the main 50 by the Wire 93 and 155 one arm of the switch 154 and wires 156 and 157 through the resistance 158 to one pole of the motor 5 at the same time current flows from the other pole of the motor 5 by the wires- 162 and 161 the other arm of the switch 154 and wires 159 and 94 to the main 60, thus operating the motor to lower the cage 3 and frame 8.

'VVhen the brush 145 passes" to the plate 147 the previously established circuit to the solenoid 149 is broken permitting the lever 150 to return to neutral position thus breaking the circuit to the motor 5, while current from the battery 33 then flows by the circuit just described to the brush 145 thence from the plate 147 by the wire 163 to the solenoid 160 thence by wires 164, 153 and 56 back to the battery 30 thus energizing the solenoid. 160 and moving the lever 165 to close the double arm switch 166. When this occurs current flows from the main 50 by wires 93 and 167 one arm of the switch 166 and the wires 168 and 157 and resistance 158 to one pole of motor 5. At the same time current flows from the opposite pole of the motor 5jby the resistance 172, wires 171 and 170 the other pole of the switch 166 and wires 169 and 94 to the main 60, thus introducing additional resistance into the circuit and so reducing the speed of the motor and the downward movement of the cage 43. WVhen the cage 3 has moved sufficiently for the brush 145 to pass from the plate 147 to the plate 148 the circuit to the solenoid 160 is broken and the lever 165 is released and returns to its neutral position breaking the circuit to the motor 5 while current flows from the battery 33 to the brush 145 by the circuit previously described and from the plate 148 by the Wire 173 to the solenoid 103 and thence by wires104 and 56 back to the battery 33 thus energizing the solenoid between the cage 4 and the upper portions v .of the frame.

To adjust the cage 4 upward in the frame 8 the lever 31 is moved to the auxiliary position shown in Fig. 6. When in this position current flows from the battery by wire 65 to trunnion 44 thence to contact 45 cotiperat ing with the fixed contact 140 thence by wire 176 to the brush 180 rigidly mounted upon the cage 4 and arranged to cotiperate, and contact with the plates 177, 178 and 179. When the cage 4 is at the lower limit of its movement in the frame 8 the brush 180 contacts with the plate 177 closing the circuit by the wire 181 to the solenoid 182 thence by wires 183, 184, and 70 back to the opposite pole of the battery 34 thus energizing the solenoid 182 and moving the lever 185 to close the double arm switch 186. When this occurs currrent flows from the main 50 by the Wires 73 and 187 one arm of the switch 186 and wires 188 and 189 to one pole of the motor 6 and from the opposite pole of the motor 6 throu h the resistance 193 wires 192 causes the brush to contact with the 139 plate 178 the current tothe solenoid 182 is broken and the lever 185 returns to neutral position thus breaking the circuit previously established to the motor 6 while current flows from the battery 34 to the brush 180 by the circuit previously described thence by the plate 178 and wire 194 to the solenoid 195 thence by thewires 196, 197 and 70 back to the battery 34 thus energizing the solenoid 195 and moving the lever 196 to close the double arm switch 197. When the switch 197 is closed current flows from the main by the wires 73 and 198 one arm of the switch 197 wires 199 and 201 through the resistance 200 to one pole of the motor 6. From the opposite pole of the motor 6 ing the circuit to the motor 6 while currentflows from the battery 34 to the brush 180 by the circuit previously described, thence by the plate 179 and wire 204 to the solenoid 114 thence by the wires 205 and 70 back to the battery 34 thus energizing the sole noid 114 and closing the double arm switch 117. When this occurs current flows from the main 50 by the Wires 73 and 206 one arm of the switch 117 and wire 120 to the brakeinechanism thence by the wire 121 the opposite arm of the switch 117 and wires 207 and 76 to the main thus setting the brakemechanism and arresting the movement of the cage 4 in the frame.

In Fig. 8 the cages 3 and 4 are shown with the maximum distance between them and the levers 30 and 31 in auxiliary position to move the cages toward each other.' When thus positioned current flows from the battery 33 by wire-35 and trunnion 36 to contact 38 on the lever 30c06perating with the fixed contact 142 on the cage 3 thence by wire 209, to the brush 210 upon the cage 4 arranged to contact with the plates 211, 212 and 213 upon the frame. 8 as the relative po sition of the cages 3 and 4 is changed. In the 'form shown the brush 210 contacts with the plate 211 and current flows from the plate 211 by the wire 214 to the solenoid 215 thence by the wires 216 and 56 to the opposite pole of the battery 33 thus energizing the solenoid 215 and moving the lever 150 to close the double arm .switch 217. When motor 5 and from the opposite pole of the motor 5 through the resistance 158 and wires 157 and 221 one arm of the switch 217 and wires 220 and 62 to the main 60, thus operating the motor to raise the cage 3 and frame 8 in relation to the cage 4. When the cage 3 and frame 8 has moved sufliciently to cause the' brush 210 to engage the plate 212 the circuit through the plate 211 and wire 214 is interrupted thus denergizing the solenoid 215 and permitting the lever 150 to return to its neutral position breaking the circuit to the motor 5. In this position current flows from the battery 33 to the brush 210 by the circuit before described thence to the plate 212 and by the wire 222 to the sole-- noid 223 thence by the wires 224, 153 and 56 back to the battery 33 thus energizing the solenoid 223 and moving the lever 168 to close the double arm switch 225. When this occurs current flows from the main 50 by wires 58 and 226 one arm of the switch 225 and wires 227 and 171 through the resistance 172 to one pole of the motor 5, at the same tlme current flows from the opposite pole of the motor 5 through the resistance 158 wires 157 and 229 the other arm of the switch 225 and by wires 228 and 62 to the main 60, thus increasing the resistance in the clrcuit to the motor and operating the same at a reduced speed andreducing the speed of the cage 3.

. When the cages are moved sufliciently to cause the brush 210 to engage the plate 213 the circuit through the plate 212 and wire 222 is broken thus deenergizing the solenoid 223 and permitting the lever 168 to return to its neutral position thereby operating the switch 225 and breaking the circuitto the motor 5. In the new position current flows from the battery 33 to the brush 210 by the circuit before described thence by the plate 213 and wire .230 to the solenoid 103 thence by the wires 104 and 56 back to the battery 33 thus energizing the solenoid-.103 and closing the double arm switch 116 thereby applying thebrakes through the circuit previously described and arresting the movement of the cage When the lever 31 is in the auxiliary position shown in Fig. 8 current flows from the battery 34 by the wire 65 and trunnion 44. to the contact 45 cooperating with the fixed contact 141 on the cage 4 thence by the wire 231 to the brush 235 upon the cage 4 arranged to electrically contact with the plates 232, 233 and 234 upon the frame 8 as the relative position of the cages 3 and 4 change. In the position shown the brush 235 contacts with the plate 232 and current flows from the'plate by the wire 236 to the solenoid 237 thence by wires 238 and 70 back to the battery 34 thus energizing the solenoid 237 and moving the lever 185 to close the double arm switch 240.' When this occurs current from the main 50 flows by wires 96 and 239 one arm of the switch 240 and wires 241 and 192 through the resistance 193 to one pole of the motor 6. At the same time current flows from the opposite pole of the motor 6 by wires 189 and 243 the opposite arm of the switch 240 and the wires 242 and 98 to the main 60, thereby operating the motor to lower the cage 4 in the frame. -\Vl1en the cage 4 has moved sufiiciently to break the contact between the brush 235 and plate 232 the circuit to the solenoid 237 is broken deenergizing the solenoid and permitting the lever 185 to return to neutral position opening the switch 240 and breaking the circuit to the motor 6. At the same time the brush 235 contacts with the plate 233 establishing a circuit from the battery 34 to the brush 235 as before describedthence by the plate 233 and wire 244 to the solenoid 245 thence by wires 246 and back to the battery 34 thus energizing the solenoid 245 and moving the lever 196 to close the double arm switch 247 thus establishing a circuit from the main 50 by wires 96 and. 248 one arm of the switch 247 and wires 249 and 192 through the resistance 193 to one pole of the motor 6 also from the opposite pole of the motor 6 by the resistance 200 wires 201 and 251 the other arm of the switch 247 and the wires 250 and 98 to the main 60, thus increasing the re same time the brush 235 contacts with the plate 234 establishing a circuit from the battery 34 to the brush 235 as before. described, thence from the plate 234 by wire 252 to the solenoid 114 thence by wire 70 back to the battery 34 thus energizing the solenoid 114- and closing the double arm switch 117 and establishing a circuit from the mains 50 and 60 to the brake-mechanism by the circuits previously described thus setting the brakes and. preventing further downward movement of the cage 4 in the frame.

Having thus described my improvement it is obvious that various immaterial modifications may be made in my device without departing from the spiritof my invention, hence I do not wish to be understood as limiting-myself to the exact form or construction shown.

lVhat I claim as new and desire to secure by Letters Patent is:

1. In a device of the kind. described, an elevator well having a plurality of landings, in combination with a plurality of connected cages positioned in said well adapted to simultaneously cotiperate with adjacent landings, means for controlling the move ments of the cages and independently adjusting them to their respective landings.

2. In a device of the kind described, an elevator well having a plurality of landings, in combination with a plurality of connected independently movable cages positioned in said Well adapted to. simultaneously co" operate with adjacent landings, cooperating means upon the several cages for controlling the movements of the cages and independently adjusting themto their respective landings.

3. In a device of the kind-described, an elevator well having'a plurality of landings, in combination with a plurality of connected independently supported cages positioned in said. well adaptedto simultaneously cooperate with adjacent landings, cooperating means upon the several cages for controlling the movements of the cages and independently adjusting them to their respective landings and automatic mechanism cooperating with said controlling means for limiting the relative movements of said cages.

4. In a device of the kind described, an elevator wellhavinga plurality of landings, in combinationwith a movable. frame mounted in said well, and a plurality of cages mounted upon said frame and adapted to simultaneously coiiperate with adjacent land-- ings, means for controlling the movements of said cages andadjusting their relative ,positions to correspond. to the distance between said landings.

5. In a device of the kind described, an

elevator well having a plurality of landings, in combination with a movable frame mount ed'in said well,and a plurality of cages adjustably spaced from each other mounted upon said frame and adapted to simultaneously cooperate with adjacent landings, means for controlling the movements of said cages and adjusting their relative positions to correspond to the distance between said landings.

6.' In a..device of the kind described, an elevator well having a plurality of landings, in combination with a movable frame mounted in said well, and a plurality of cages mounted upon said frame one of said cages being rigidly secured to said frame and another movable thereon, said cages be' ing adapted to simultaneously cooperate with adjacent landings, means for controlling the movements of said cages and adj usting their relative positions to correspond to the distance between said landings.

7. In a device of the kind described, an elevator well having a plurality of landings, in combination with a movable frame mounted in said well, 'and a plurality of cages mounted upon said frame and. adapted.

to simultaneously cooperate with adjacent landings, cooperating means upon the several cages for controlling the movements of said cages and adjusting their relative positions to correspond to the distance between said landings.

8. In a device of the kind described, an elevator well having a plurality of landings, in combination with a movable frame mounted in said well, and a plurality of cages adjustably spaced from each other mounted upon said frame and adapted to simultaneously cooperate with adjacent landings, cooperating means upon the several cages for controlling the movements of said cages and adjusting their relative positions to correspond to the distance between said just the distance between said cages.

In testimony whereof, I have hereunto signed my name 111 the presence oftwo sub scribing Witnesses.

HERMANN GUMPEL.

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