US174631A - Improvement in safety-stops for elevators - Google Patents
Improvement in safety-stops for elevators Download PDFInfo
- Publication number
- US174631A US174631A US174631DA US174631A US 174631 A US174631 A US 174631A US 174631D A US174631D A US 174631DA US 174631 A US174631 A US 174631A
- Authority
- US
- United States
- Prior art keywords
- safety
- elevators
- improvement
- piece
- center
- 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
- 239000002965 rope Substances 0.000 description 6
- 210000003141 Lower Extremity Anatomy 0.000 description 2
- 235000013290 Sagittaria latifolia Nutrition 0.000 description 2
- 235000015246 common arrowhead Nutrition 0.000 description 2
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
- the object of this invention is to form an improved safety-stop for hoisting apparatus, elevators, &c., affording a certain and practical means for preventing the fall of the cage or elevator-platform in consequence of sudden release, breakage, or accident to the hoisting rope or chain. It therefore relates to the peculiar combination and operation of the parts composing the safety-stop, in the manner as will now more fully appear.
- Figure 1 is a perspective view of my improvement as applied and in practical operation.
- A is the hoisting cage or platform.
- B is the rope or chain secured to top of the cent rpiece (J.
- the center-piece O slides through the slotted head of the cage, and, by means of its enlarged body part at c, raises and lowers said cage when operated.
- D are horizontal sliding bars, their inner ends passing through slotted supports 0 0 which are secured to the under side of the head. The outer ends of the bars D pass likewise through slots in the sides of the cage, in order to be engaged with or disengaged from the side racks.
- E is asuitable spring, passed through the center-piece U, and made to engage the under side of the head.
- I further provide the center-piece O to have projecting pins 0, which are oppositely positioned, and the object of which is to operate angle-levers E, (one being on one side and the other on the opposite side,) pivoted each to one of the supports 0 c, as indicated. Further, the angle-levers E engage each a lower projecting pin, 6, which form part of the inner ends of the bars D. In order that the sudden descent of the platform (or lowering of the center-piece) can be made to force the horizontal bars apart or into engagement with the racks, I form the lower extremity of said center-piece arrow-shaped.
- the inner ends of the bars D are also shaped so as to fit snugly in curved causes the top lever-arm of the angle-levers E to be raised, which, in turn, are made to engage the lower pins 0 of the horizontal bars D, and act upon these.
- the bars D are drawn out and kept out of engagement with the racks.
- the spring E forces the center-piece immediately down to its original position, and the fall of the arrow-head thereof acts to separate the bars, forcing them to slide into engagement with the racks or posts, andthe platform is stopped. It is apparent that the stoppage here is instantaneous, as the locking of the parts' is decisive, immediate, and certain.
- the spring E can be dispensed with. as the weight of the center-piece itself can be utilized for the same purpose, and to insure a proper stoppage and operation of the parts.
Description
SAFETY STOP FOR ELEVATORS.
NO.1-74,631. Patented Marchl, 1876.
I i P. F. KING. I
W1; Z nesses: In renibr:
N, PETERS, PHOTO-UTHOGRAPHER. WASHINGTON, D. C.
UNITED STATES PATENT QFFICE.
PHINEAS F. KING, OF ST. LOUIS, MISSOURI.
IMPROVEMENT IN SAFETY-STOPS FOR ELEVATORS.
Specification forming part of Letters Patent No. 1 74,631, dated March 14, 1876; application filed July 26, 1875. v
To all whom it may concern Be it known that I, PHINEAS F. KING, of St. Louis, in the county of St. Louis and State of Missouri, have invented an Improved Safety-Stop for Hoisting'Appa-ratus, 850., of which the following is a specification:
The object of this invention is to form an improved safety-stop for hoisting apparatus, elevators, &c., affording a certain and practical means for preventing the fall of the cage or elevator-platform in consequence of sudden release, breakage, or accident to the hoisting rope or chain. It therefore relates to the peculiar combination and operation of the parts composing the safety-stop, in the manner as will now more fully appear.
Of the drawing, Figure 1 is a perspective view of my improvement as applied and in practical operation.
A is the hoisting cage or platform. B is the rope or chain secured to top of the cent rpiece (J. The center-piece O slides through the slotted head of the cage, and, by means of its enlarged body part at c, raises and lowers said cage when operated. D are horizontal sliding bars, their inner ends passing through slotted supports 0 0 which are secured to the under side of the head. The outer ends of the bars D pass likewise through slots in the sides of the cage, in order to be engaged with or disengaged from the side racks. E is asuitable spring, passed through the center-piece U, and made to engage the under side of the head. I further provide the center-piece O to have projecting pins 0, which are oppositely positioned, and the object of which is to operate angle-levers E, (one being on one side and the other on the opposite side,) pivoted each to one of the supports 0 c, as indicated. Further, the angle-levers E engage each a lower projecting pin, 6, which form part of the inner ends of the bars D. In order that the sudden descent of the platform (or lowering of the center-piece) can be made to force the horizontal bars apart or into engagement with the racks, I form the lower extremity of said center-piece arrow-shaped. (See figure.) The inner ends of the bars D are also shaped so as to fit snugly in curved causes the top lever-arm of the angle-levers E to be raised, which, in turn, are made to engage the lower pins 0 of the horizontal bars D, and act upon these. When, therefore, the center-piece is in full raised position preparatory to raising or lowering the platform, the bars D are drawn out and kept out of engagement with the racks. In case, now, from accident or otherwise, the rope or chain should= suddenly break or become loosened, the spring E forces the center-piece immediately down to its original position, and the fall of the arrow-head thereof acts to separate the bars, forcing them to slide into engagement with the racks or posts, andthe platform is stopped. It is apparent that the stoppage here is instantaneous, as the locking of the parts' is decisive, immediate, and certain.
The spring E can be dispensed with. as the weight of the center-piece itself can be utilized for the same purpose, and to insure a proper stoppage and operation of the parts.
The greater the'weight on the cage or platform the more positive in manner is the operation of my safety-stop.
What I claim is-'- The combination of the center-piece 0, its pins 6 e, angle-levers E E, sliding bars D D, havingpins e c, said parts being arranged with relation to each other to form a safetystop, operating in the manner described and for the purpose set forth.
In testimony of said invention I have hereunto set my hand.
PHINEAS F. KING. Witnesses:
WILLIAM W. HERTHEL, Grams. F. MEISNER.
Publications (1)
Publication Number | Publication Date |
---|---|
US174631A true US174631A (en) | 1876-03-14 |
Family
ID=2244038
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US174631D Expired - Lifetime US174631A (en) | Improvement in safety-stops for elevators |
Country Status (1)
Country | Link |
---|---|
US (1) | US174631A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080093176A1 (en) * | 2006-09-28 | 2008-04-24 | Rosenthal Harry J | Lifting apparatus and method for transporting people and objects |
-
0
- US US174631D patent/US174631A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080093176A1 (en) * | 2006-09-28 | 2008-04-24 | Rosenthal Harry J | Lifting apparatus and method for transporting people and objects |
US8146713B2 (en) * | 2006-09-28 | 2012-04-03 | Rosenthal Harry J | Lifting apparatus and method for transporting people and objects |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US174631A (en) | Improvement in safety-stops for elevators | |
US366745A (en) | tayloe | |
US369748A (en) | Safety elevator | |
US186241A (en) | Improvement in safety-checks for elevators | |
US113836A (en) | Improvement in hoisting-machines | |
US174318A (en) | Improvement in safety hoisting apparatus | |
US876188A (en) | Safety-clutch for elevators. | |
US286064A (en) | To daniel h | |
US652118A (en) | Safety attachment for elevators. | |
US874339A (en) | Elevator. | |
US595786A (en) | Elevator safety | |
US719009A (en) | Self-dumping coal-elevator. | |
US278445A (en) | Hoist or elevator | |
US710038A (en) | Safety-elevator. | |
US177256A (en) | Improvement in safety apparatus for mines and hoists | |
US177290A (en) | Improvement in safety-catches for elevators | |
US232455A (en) | Safety attachment for elevators | |
US983120A (en) | Safety shaft-sinking cross-head. | |
US870411A (en) | Safety appliance for elevators. | |
US605820A (en) | Island | |
US592772A (en) | Safety-catch for elevators | |
US299548A (en) | Meebill k hutchinson | |
US870084A (en) | Safety appliance for elevators. | |
US416000A (en) | Safety device for elevators | |
US179972A (en) | Improvement in apparatus for loading wagons |