US373554A - Hatchway for elevators - Google Patents

Hatchway for elevators Download PDF

Info

Publication number
US373554A
US373554A US373554DA US373554A US 373554 A US373554 A US 373554A US 373554D A US373554D A US 373554DA US 373554 A US373554 A US 373554A
Authority
US
United States
Prior art keywords
doors
hatchway
carriage
elevators
cams
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
Publication date
Application granted granted Critical
Publication of US373554A publication Critical patent/US373554A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B13/00Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
    • B66B13/02Door or gate operation
    • B66B13/04Door or gate operation of swinging doors

Description

(No Model.)
I. L. DARRAGH.
HATGHWAY FOR ELEVATORS.
No. 373,554. Patented Nov. 22, 1887.
WITNESSES: 9% M,
N. PETERS. fimmuuw n her. .Waihmglnm D. c.
FRANCIS L. DARRAGH, OF PHILADELPHIA, PENNSYLVANIA.
HATCHWAY FOR ELEVATO RS.
SPECIFICATION forming part of Letters Patent No. 373,554, dated November 22, 1887.
Application filed Decembtr 4, 1886.
To aZZ whom, it may concern:
Be it known that I, FRANCIS L. DARRAOH, a citizen of the United States, residing in the city and county of Philadelphia, State ofPennsylvania, temporarily residing at Baltimore, in the State of Maryland, have invented a new and useful Improvement in Hatchways for Elevators,which improvement is fully set forth in the following specification and accompany ing drawings, in which Figures 1 and 2 represent side elevations and partial vertical sections of portions of an elevator embodying my invention. Figs. 3 and 4 represent partial vertical sections in lines 00 w, Figs. 1 and 2, respectively, and partial side elevations at a right angle to said Figs. 1 and 2. 1
Similar letters of reference indicate corresponding parts in the several figures.
My invention consists of means for automatically locking and unlocking the doors of the hatchway of an elevator, as hereinafter set forth.
It also consists of means, substantially as described, for automatically causing the closing of the doors in the event of fire.
Referring to the drawings, A represents the guides, columns, or frames for the car or carriage B of an elevator.
G represents the doors of the hatchway, the same being hinged to the floors of the building, as usual.
0' represents metal hooks or hooked catches, which are secured to the columns A or adjacent portion of the wall above the hinges of the doors and projecting inwardly, and being so located that when the doors are raised to full extent said hooks 0 enter openings D in said doors and have their noses outside of the doors.
Pivoted to the under side of the doors, adjacent to the openings D, are metal latches E, which are so disposed that when the doors are raised the latches may engage with the hooks O, and thus hold thedoors in open position. The heel ends of the latches are formed with cams or wings F F, which, as will be seen, extend in opposite directions from said heel ends in the direction of the width of the doors.
Attached to the sides of the carriage B are rollers or studs G, which project outwardly, and are so disposed that they are in the path of the outer faces of the cams F F, as will be Serial No. 220,652. (No model.)
hereinafter fully described, said faces being preferably rounded for preventing abrupt action of the rollers G on said cams, and consecarriage may continue its ascent, if so desired.
It will now be seen that, owing to the motions of the latches on their axes, the cams F F have been shifted, whereby the cams F are in the path of the rollers G. Consequently, when the carriage descends, said rollers ride over the faces of said cams F and press against the same, whereby the latches are raised and cleared of the-hooks O and the doors are permitted to fall toward the carriage, and thus close as the carriage continues its descent, it being seen that the top of the carriage has inclined beams or deflectors which prevent the doors from forcibly dropping when released.
Should the lowering of the carriage be neg lectcd, whereby the doors remain open, in the event of fire the heat melts the latches or hooks,
or both, so that the doors are no longer held, whereby they drop, thus closing the hatchway.
In order to prevent lateral motions of the carriage as it passes the doors, tracks H are secured to the latter in line with the tracks proper, A, of the elevator, whereby when said doors are raised the guides A of the carriage engage with the tracks of the doors, and thus steady the carriage as said guides leave the tracks proper, said tracks A being secured to the frames A of the elevator.
Should the doors 0 fail to close when the descending carriage B passes the same, they may be started in closing by the action of springs B, which are attached to the frames A, or otherwise suitably'applied.
Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-
1. A hatchway having a hinged door with an opening therein. a frame with a hook se" cured thereto, the hook being adaptedto project through said opening, and a latch pivoted to the door and engaging the hooks when the 5 door is raised to full extent, all substantially as described.
2. A hatchway provided with a hinged door adapted to cover the opening in said hatchway, and having an opening therein, a hook 10 secured to the frame, so as to project through said opening when the said door is raised, a latch pivoted to the under side of the door, and having cams, as shown, and a carriage with studs, all of said parts combined and operating 15 substantially as and for the purpose set forth.
FRANCIS L. DARRAOH.
\Vitn'esses:
J OHN A. WIEDERSHEIM, A. P. GRANT.-
US373554D Hatchway for elevators Expired - Lifetime US373554A (en)

Publications (1)

Publication Number Publication Date
US373554A true US373554A (en) 1887-11-22

Family

ID=2442564

Family Applications (1)

Application Number Title Priority Date Filing Date
US373554D Expired - Lifetime US373554A (en) Hatchway for elevators

Country Status (1)

Country Link
US (1) US373554A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6719100B2 (en) * 2000-09-01 2004-04-13 Pri Automation, Inc. Interfloor vertical transport and horizontal closure system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6719100B2 (en) * 2000-09-01 2004-04-13 Pri Automation, Inc. Interfloor vertical transport and horizontal closure system

Similar Documents

Publication Publication Date Title
US373554A (en) Hatchway for elevators
JP5937255B1 (en) Elevator equipment
US615222A (en) keech
KR20190123526A (en) A Dual-Engagement Typed Apparatus For Preventing Door From Escaping For Elevator
US596228A (en) bechtel
US445433A (en) Automatic door and lock for elevators
US303193A (en) Half to henry i
US404618A (en) Self-closing hatchway
US693027A (en) Safety attachment for elevators.
US613468A (en) Mechanism for actuating doors or gates of elevators
US1709595A (en) Elevator door
US256517A (en) Elevator
US503782A (en) Door-operating device
US195276A (en) Improvement in automatic hatchway-doors
US772095A (en) Automatic door-closer.
US223284A (en) Elliott e
US319292A (en) Automatic elevator-gate
US868422A (en) Well-door for dumb-waiters.
US401273A (en) Elevator-hatch way
US141171A (en) Improvement in self-closing hatchways
US272455A (en) Grain-car door
US301109A (en) Egbert fyfe
US134334A (en) Improvement in hatchways for elevators
US788646A (en) Door for railway-cars.
US1377213A (en) Safety-door and door attachment for elevators