US635521A - Automatic safety-lock for elevators. - Google Patents
Automatic safety-lock for elevators. Download PDFInfo
- Publication number
- US635521A US635521A US69961898A US1898699618A US635521A US 635521 A US635521 A US 635521A US 69961898 A US69961898 A US 69961898A US 1898699618 A US1898699618 A US 1898699618A US 635521 A US635521 A US 635521A
- Authority
- US
- United States
- Prior art keywords
- elevators
- lock
- elevator
- automatic safety
- hooks
- 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
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
- B66B5/26—Positively-acting devices, e.g. latches, knives
Definitions
- WITNESSES INVENTOR. J jaw Mm W WM,
- My invention relates to an automatic safetylock for elevators; and it consists of the novel construction, combination, and arrangement of the parts, as hereinafter more particularly described, pointed out in the appended claim, and illustrated in the accompanying drawings, in which- Figure 1 represents the portion of an elevator with myinvention applied thereto.
- Fig. 2 represents a view of one of the safety-locks detached and on an enlarged scale.
- the letter A designates the upper portion of an elevator-cage constructed in a well-known manner
- B B indicate the usual racks to hold the elevator-cage in case of an accident.
- the letters C C indicate cables attached to a wheel in a well-known manner and to weights E E, attached to the top of the elevator-cage, as shown in dotted and full lines in Fig. 1.
- the letters F F indicate two plates secured to the arch S of the elevator by screw-bolts a a, one on each side of the top of the elevator.
- the plates F F have bolt-holes b, by means of which the hooks G are pivoted thereto by means of thelu gs 6, formed integral with the hooks.
- H H are torsion-springs, one,
- each one of said springs H H has extensions f, which in their normal state bear against the inner side of the hooks and are held in that condition by chains J, attached to the respec tive extension of each spring, as g, which chains J are attached to lower part of the weights E E on the top of the elevator-cage and are connected to the springs H H and the hooks G G.
- the weights E E are hung out of the center of gravity on the arch S and in falling release the springs H H by means of the cables J J over friction-rollers, and thereby cause the elevator to stop-by upsetting said weights, one to right and the other to the left, as shown in dotted lines, Fig. 1.
- the cables C C break the weights fall, one to one side and the other to the opposite side, and act on the hook opposite to the direction in which they fall, thereby causing the elevator-car to stop by the hooks G G engaging the rack-teeth B B.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
Description
No. 635,521. Patented Oct. 24, I899.
6." S. STOKES.
AUTOMATIC SAFETY LOOK FOR ELEVATORS.
(Application filed. Doc. 17, 1898.)
(No Model.)
WITNESSES: INVENTOR. J jaw Mm W WM,
A T TORNE K UNITED STATES PATENT OFFICE.
CHARLES STANLEY STOKES, OF NEW YORK, N. Y.
AUTOMATIC SAFETY-LOCK F OR ELEVATORS.
SPECIFICATION forming part of Letters Patent No. 635,521, dated October 24, 1899.
Application filed December 17,1898. Serial No. 699,618. (No model.)
To all whom it may concern:
Be it known that I, CHARLEs STANLEY STOKES, a citizen of the United States, and a resident of New York, (Brooklyn,) in the county of Kings and State of New York, have invented a certain new and useful Automatic Safety-Lock for Elevators, of which the following is a specification.
My invention relates to an automatic safetylock for elevators; and it consists of the novel construction, combination, and arrangement of the parts, as hereinafter more particularly described, pointed out in the appended claim, and illustrated in the accompanying drawings, in which- Figure 1 represents the portion of an elevator with myinvention applied thereto. Fig. 2 represents a view of one of the safety-locks detached and on an enlarged scale.
Similar letters of reference indicate corresponding parts.
The letter A designates the upper portion of an elevator-cage constructed in a well-known manner, and B B indicate the usual racks to hold the elevator-cage in case of an accident.
The letters C C indicate cables attached to a wheel in a well-known manner and to weights E E, attached to the top of the elevator-cage, as shown in dotted and full lines in Fig. 1.
The letters F F indicate two plates secured to the arch S of the elevator by screw-bolts a a, one on each side of the top of the elevator. The plates F F have bolt-holes b, by means of which the hooks G are pivoted thereto by means of thelu gs 6, formed integral with the hooks.
The letters H H are torsion-springs, one,
. H, secured to the plate and hooks by means of a bo1t,as at d, and the other, H, secured to the plate by means of a bolt, as at 6. Each one of said springs H H has extensions f, which in their normal state bear against the inner side of the hooks and are held in that condition by chains J, attached to the respec tive extension of each spring, as g, which chains J are attached to lower part of the weights E E on the top of the elevator-cage and are connected to the springs H H and the hooks G G. The weights E E are hung out of the center of gravity on the arch S and in falling release the springs H H by means of the cables J J over friction-rollers, and thereby cause the elevator to stop-by upsetting said weights, one to right and the other to the left, as shown in dotted lines, Fig. 1. In other words, when the cables C C break the weights fall, one to one side and the other to the opposite side, and act on the hook opposite to the direction in which they fall, thereby causing the elevator-car to stop by the hooks G G engaging the rack-teeth B B.
What I claim as new, and desire to secure by Letters Patent, is-- The combination with the elevator-cage of the weights pivoted thereto, the hoisting-rope connecting with said weights, the stationary racks,the hooks pivoted to the cage and adapt ed to engage the racks, springs adapted when released to act on said hooks to throw them in engagement with said racks, chains connecting said weights and said springs to hold said springs from thus actuating said hooks so long as the hoisting-rope is intact, substantially as described.
CHARLES STANLEY STOKES. Witnesses:
FRANCIS C. BOWEN, JAMES W. CAMERON.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US69961898A US635521A (en) | 1898-12-17 | 1898-12-17 | Automatic safety-lock for elevators. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US69961898A US635521A (en) | 1898-12-17 | 1898-12-17 | Automatic safety-lock for elevators. |
Publications (1)
Publication Number | Publication Date |
---|---|
US635521A true US635521A (en) | 1899-10-24 |
Family
ID=2704112
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US69961898A Expired - Lifetime US635521A (en) | 1898-12-17 | 1898-12-17 | Automatic safety-lock for elevators. |
Country Status (1)
Country | Link |
---|---|
US (1) | US635521A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040206578A1 (en) * | 2002-07-05 | 2004-10-21 | Norbert Fassler | Device for storing of goods |
US20100136730A1 (en) * | 2004-08-06 | 2010-06-03 | Au Optronics Corp. | Thin film devices for flat panel displays and methods for forming the same |
-
1898
- 1898-12-17 US US69961898A patent/US635521A/en not_active Expired - Lifetime
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040206578A1 (en) * | 2002-07-05 | 2004-10-21 | Norbert Fassler | Device for storing of goods |
US7334664B2 (en) * | 2002-07-05 | 2008-02-26 | Klaus Auto-Parksysteme Gmbh | Device for storing goods |
US20100136730A1 (en) * | 2004-08-06 | 2010-06-03 | Au Optronics Corp. | Thin film devices for flat panel displays and methods for forming the same |
US7851282B2 (en) | 2004-08-06 | 2010-12-14 | Au Optronics Corp. | Method for forming thin film devices for flat panel displays |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US635521A (en) | Automatic safety-lock for elevators. | |
US1398216A (en) | Safety device for mine-elevators | |
US748526A (en) | Fire-escape. | |
US565699A (en) | Self-locking pulley-block | |
US299547A (en) | Meeeill | |
US476289A (en) | matthews | |
US289905A (en) | Safety | |
US311279A (en) | bakee | |
US299548A (en) | Meebill k hutchinson | |
US607326A (en) | Elevator | |
US595786A (en) | Elevator safety | |
US905309A (en) | Pulley-block. | |
US256013A (en) | Steeet | |
US496179A (en) | Safety device for elevators | |
US366745A (en) | tayloe | |
US758470A (en) | Safety device for elevators. | |
US532158A (en) | Safety device for elevators | |
US1081312A (en) | Safety device for elevators. | |
US386743A (en) | hedge | |
US140190A (en) | Improvement in safety-platforms for elevators | |
US1249453A (en) | Elevator-brake. | |
US751328A (en) | Safety-catch for elevators | |
US918917A (en) | Safety device for elevators. | |
US116656A (en) | Improvement in safety attachments for hoisting-cages | |
US605820A (en) | Island |