US1171253A

US1171253A - Safety device for elevators.

Info

Publication number: US1171253A
Application number: US604415A
Authority: US
Inventors: Axel J Rosell
Original assignee: Individual
Current assignee: Individual
Priority date: 1915-02-04
Filing date: 1915-02-04
Publication date: 1916-02-08
Anticipated expiration: 1933-02-08

Description

A. J. ROSELL. SAFETY DEVICE FOR ELEVATORS.

APPLICATION FLLED FEB. 4| I915.

SSS:

PdtentedFeb. 8,1916.

2 SHEETSSHEET 1 Pi... A

- IIVI/E/VTOR I Axe lJ RoseH I ,4 TTORNEYS THE COLUMBIA PLIu IOaRAPH :0" WASHINGTON, n, c.

A. J. ROSELL.

SAFETY DEVICE FOR ELEVATORS.

APPLICATION FILED FEB, 4, I915- Pate med Feb. 8,1916.

2 SHEETS-SHEET 2.

Ill

IIVI/ENTOR A'xelJ Rosell A TTOR/VEYS THE COLUMBIA PLANOGRAPH (10., WASHINGTON, D. c.

- lock on the cage reaching a landing with ya AXEL J. Bosnian; or NEWYORK, 1v.

'SAFE'IY DEVICE roanrnvnrons;

To all whom/ it may concern V Be it known that I, AXEL J. RosELL, a c1t1-. zen of the United States, and a resident of the city of New York, borough of Brooklyn,-

in the county of Kings and State of New York, hav'einvented' a new and Improved Safety Device for Elevators, of which the following is a full, clear, and exact description.

The object of'the invention is to provide anew and, improved safety device for elevators arranged to prevent accidental opening of a shaft door unless the cage has reached and stopped at a landing, and to lock the controller in thecage against being actuated while the cage is ata landing unless the door for this landing is first in Closed position. I

' In order toproduce thedesired: result use is made of a lock for normallyholding the; door aga nst opening, and; an actuating mechanism'mountedin the cage and having an operating member connected with the controller in the cage, the said operating.

member being adaptedto engage the said i view to unlocking the door to allow the oper l to lock the said controller against move-v is represented in the accompanying draw-j ings forming a part of th s specification, 1n

ator to move the door into openor closed .position, the said actuating mechanism also having a locking member controlled bythe door on opening and closing the same and adapted ment as long as the door is open and to unlock the controller as soon as the door/is closed.

A practical embodiment ofthe invention which similar characters of reference indi cate. corresponding parts in all the views.

Figure 1 is a sectional side elevation of the Safety device as appliedand showing the cage in position at a landing, the door of which is shown. inclosed position; Fig.2 is an inverted sectional plan view of the same on the line 2'2 of Fig. 1; Fig. 3 is a cross section of the same on the line 33 of Fig.

-2; Fig. 4: is an inverted plan view ofthe safety device, similar to Fig. 2, and showing the partsin a different position; Fig. 5 is a sectional side elevation of the safetydevice as applied and showing the parts in position after the cage has left the landing; Fig. 6 is an inverted sectional plan view of the sameon the line 66 of Fig. 5; and Fig. 7

. is. a Pe pe tiv iew of hespr gmtshy Specification of Letters Batent. p 'i- 'Patg fl ed Feb, 8, 1916, Application filed. February 1915; Serial 115.6,044. I 7

In thelelevator shaft A ismounted to as-I I cend and descend in the usual manner a cage '13 provided with a suitable controller C for controlling the up. and down movement of the cage. "A door D. leads tothe shaft A at each landing E, and this door is provided at its lower end with a, vertically 1 disposed locking arm F, normally abutting aaginst a lug G'- of a spring catch G extending horizontally andsecured to the inside of the: shaft A atthe'landing El Normally the door-D islocked against opening by a look} ing bar F'abutting against the lugG of the springcatchG V f M f On the under side of the cagefBfis' ar ranged a slide H provided with elongated bracketl attached to theunder side of the cage 13, The pivot I ispivotally connected by a connecting-link J with an, arm C on thej lever (1 10f the controller C sothat when; l v

the said lever C? is" actuated by the attend-f ant charge of thefcage B then a movement is given to the slide Hto move thea oward orfrom the; side of the shaft H containing th d 1 i p v The-s1ide H is provided with a sliding arm K pressedon by a spring K and carryingazfrictionrollerK adapted to engage;

the free end of the. spring catch G to imove V the latter ,i'ntdunlockirig position, thatis,

tomove thelugl G .out of the path of the locking barlF to permitv opening ofthe' door D. Onthe 'slide H'isfulcrumed at L- a ;lever L terminating in a .fork L adapted to engage the lockingbar F atjthetime. the

cage B reaches a landing E and the slide ismoved outward so. that. the. door -on being opened imparts a swinging motionfto the lever L to swing th same; fr its l mal position shown in Fig. -.2 into the-locking position illustrated inFig. 4. The rear end of the lever L provided with a lug L? adapted to engage a notch J formed in the connecting link J to lock the controller lever C against movement, that is, at the time when the lever C is in vertical position and the-cageB isat, a standstill (see Fig. 1).

cage B is ascending or descending then the controller lever C is either in the position shown in full lines in Fig. 5 or in dotted lines as indicated in said figure. When the controller lever C is in this position then the slide H is in Withdrawn position so that the fork L f the lever L and the friction roller K extend within the area of the bottom of the cage 13 and consequently do not interfere with the ascending and descending of the cage B. VJ hen the cage B reaches a landing and the attendant moves the lever G into vertical stopping position then the connecting link J straightens out the links I, I so that an outwardly sliding movment is given to the slide H whereby the fork L is engaged with the locking bar F and the friction roller K is engaged with the free end of the spring catch G to move the lug G out of the path of the locking bar F. l Vhen the elevator comes to a stop the door D can be opened by the attendant in the cage and the door in its opening movement causes the locking bar F to impart a swinging motion to the lever L by the looking bar id engaging one of the prongs of the fork L The swinging motion given to the lever L causes its lug L to enter the notch J so that the controller C is locked against movement during the timethe door D is in an open position. When the door '1) is closed the locking bar F reengages the fork L and imparts a return swinging motion to the leverL so that the lug L thereof moves out of the notch d atthe time the door D is in closed position. When this takes place the controller C can be manipulated by the attendant for starting the car andin doing so the slide H is Withdrawn to move the friction roller K out of engagement with the spring catch G whereby the latter returns to normal locking position thus preventing the door D from being opened on account of the lugG' projecting into the path of the looking bar'F From the foregoing it will be seen that the locking'bar F and the spring catch G are on thedoorand elevator shaft respectively, while the remaining' member of the safety device are located on the cage.

In case the operator stops the cage intermediate of two landings the projected roller K and the fork L are not liable to interfere with any projection in the shaft, as the spring K allows the arm K carrying the roller'K to yield. i

Having thus described my invention, I claim as new and desire to secure by Letters at t: c

1. An elevator shaft having a door pro vided with a lock to normally hold the door against opening in combination with a cage adapted to ascend and descend in the said shaft, a controller in the said cage and" an actuating mechanism mounted on the said cage and having a notched member connected with the controller, and an operating member connected with the notched memher and adapted to engage the said lock on the cage reaching a landing, to unlock the the door to allow of moving the door into open or closed position, the said actuating mechanism having a locking member controlled by the door on opening and closing the same and adapted to engage the said notched member to lock the said controller as long as the door is open and to disengage the notched member to unlock the controller as soon as the door is closed.

' An elevator shaft having a sliding door provided with a locking bar, and a spring catch held on the shaft and adapted to normally engage the said locking bar to hold the door against opening in combination with a cage adapted to ascend and descend in the said elevator shaft, a controller in the cage and actuating mechanism mounted on the cage and connected with the said controller to unlock the door and to lock the controller, the said actuating mechanism having a link connected with the controller, an operating member connected with the said link and adapted to engage the said catch to move the latter into unlocking posi tion relative to the locking bar to allow of opening or closing the door at the time the cage reaches a landing and the said actuating mechanism having a fulcriuned looking member controlled by the said locking bar and adapted to engage and disengage the said link, lock the controller against movement as long as the door is opened and to unlock the controller as soon as the door is closed.

"8. An elevator shaft having a sliding door provided with a centrally disposed locking bar and a spring catch held on the shaft and normally engaging the said locking bar to hold the door against opening, combined with a cage adapted to ascend and descend in the said shaft, a controller in the said cage, a slide mounted on the cage and connected with the said controller, the said slide having a spring pressed sliding member adapted to engage the said spring catch and move the same into unlocking position relative to the locking bar, and a locking lever 'fulcrumed on the said slide and having at one end a fork adapted to engage the said locking bar and to receive a swinging motion on moving the door into open or closed position, the said locking lever having a member at the other end adapted to engage the said controller and lock the same against movement during the time the (1001 is open;

' a. An elevator shaft having a sliding door provided with a vertically disposed locking bar, and a spring catch held on the shaft and aermauy'en a ing the said locking bar said lockingbar and I otion on opening and ther end of the said apted to engage and k notch to lock and 7 provided With a door nally lock the door I bination with a cage descend in the said he said cagevhaving ed on'the cage and :dsliding arm proigaging the said look a landingto unlock .oving the same into i, a locking member slide and controlled and closing the same, the controller lever, he said link With the a :When the lever is king member being disengage the said zhe link and the con- E I have signed my n in the presence of, 7

es. 1 :EL ROSELL.

:, mos.

)mmissioner of Patents.

to hold the dooragainst -opening, combined With a cage adapted to ascend and descend in the said shaft, a controller inthe said cage, a slide mounted on the cage and con- 'nected With the said controller, the said slide being provided with a spring-operated friction roller adapted to engage the said spring catch and move the same into unlockmg position relative to the locking bar, and

provided Witha vertically disposed locking bar and a spring catch held on the shaft and normally engaging the said locking bar to 7 hold the door against opening, combined 'ed to engage the said spring catch, a pair of with a cage adapted to ascend and descend in the said shaft, a controller in the said cage, a slide mounted on the cage and adaptconnected links of which one is fulcrumed on the cage and the other'is connected With the said slide, a connecting link connecting.

the said pair of, connected links With the controller, the said connecting link having a notch, and a locking lever fulcrumed on the said slide and having at one end a fork adapted to engage the to receive a swinging In closing thefdoor, the 0 locking lever being ad: disengage the said lini unlock the controller.

I 6. An-elevator shaft having a lockto norI against opening, in com adapted to ascend and shaft, a controller in t a lever, a slide monnt having a spring-presse vided With means for eI when the cage reaches the door to alloW of In open or closed position fulcrumed on the said by the door on opening a link connected With and means connecting tl slide to move'the slid actuated, the-said locl adapted to engage and link to lock and unlock 1 trolling lever;

In testimony vvhereo:

name to this specif icatio ,two subscribing Witness A Witnesses:

THEO. G. Hos'rni PHILIP ROLLII Copies of this patent may be obtained for five cents each, by addressing the Gr Washington, D. C. I V