US822538A - Elevator-catch. - Google Patents

Elevator-catch. Download PDF

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Publication number
US822538A
US822538A US25810805A US1905258108A US822538A US 822538 A US822538 A US 822538A US 25810805 A US25810805 A US 25810805A US 1905258108 A US1905258108 A US 1905258108A US 822538 A US822538 A US 822538A
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Prior art keywords
elevator
arm
catch
guide
car
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Expired - Lifetime
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US25810805A
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James Morgan
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    • 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
    • B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
    • B66B5/24—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces by acting on guide ropes or cables
    • 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
    • B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
    • B66B5/20—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces by means of rotatable eccentrically-mounted members

Definitions

  • My invention relates to safety devices for elevators, and to that particular class in which the car is held from lateral movement by guide-ropes.
  • the object of my invention is to provide an inexpensive device of the class described which may be attached to elevators now in use, thereby eliminating all danger of falling due to the breaking of the hoisting-cable
  • Figure 1 is a passengerelevator provided with my device.
  • Fig. 2 is a front view of my device, showing in dotted lines the binding member in an inoperative position.
  • Fig. 3 is a front view of the same with the casing partly broken away, showing the binding member in operative position.
  • Fig. 4 is a side view.
  • 1 is an elevator-car provided with a hoisting-cable 2, running over a pulley 3 to a winding-drum.
  • a hoisting-cable 2 running over a pulley 3 to a winding-drum.
  • beam 5 Secured to beam 5 are guide-ropes 6, which are anchored at the bottom of the shaft in some suitable manner. Loops 7 and casings 8 engage the guide-ropes and serve to hold the car steady.
  • Fig. 1 of the drawings I secure my safety device in such position that the guide-rope 6 passes down through casing 8.
  • a shaft 9 mounted in this casing is a shaft 9, to which is eccentrically keyed a cylindrical disk 10, having the part of its periphery which is brought into contact with the guiderope serrated.
  • arm 11 To the outer end of shaft 9 is secured an arm 11.
  • disk 10 is held out of engagement with guide-rope 6, as shown in Fig. 2.
  • Spring 12 operates on the arm to hold the disk 10 into binding position with the guiderope.
  • One end of chain 14 is clamped to The other is secured to arm 11 and serves to hold said arm in an upright or inoperative position. Should the cable break, however, chain 14 would be slackened and the spring 12 would move arm 11 toward a horizontal position, which in turn would cause the disk 10 to bind rope 6 against the side of easing 8, thereby holding the car from further descent.
  • the combination with a car of a guide-rope, a casing on said car through which said guide-rope passes, a safety device with an eccentrically-mounted binding member with a lever-arm fastened thereto by the shaft 9, said shaft being operated by the spring 12, said spring having a U- haped extension, the curved portion of which passes through said lever-arm and the main portion of which is coiled about said shaft and secured thereto at one end, said safety device being normally held out of operation by connection with the hoisting-cable.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)

Description

PATENTED JUNE 5, 1906.
J. MORGAN. ELEVATOR CATCH.
APPLICATION FILED APR. 29.1905
witnesses 44L M.
/f: M 1M JAMES MORGAN, OF NEW BEDFORD, MASSACHUSETTS.
ELEVATOR-CATCH Specification of Letters Patent.
Patented June 5, 1906.
Application filed April 29, 1905. Serial No- 258,108.
To all whom it may concern.-
Be it known that I, J AMES MORGAN, a citizen of the United States, residing at New Bedford, in the county of Bristol and State of Massachusetts, have invented certain new and useful Improvements in Elevator- Catches, of which the following is a specification.
My invention relates to safety devices for elevators, and to that particular class in which the car is held from lateral movement by guide-ropes.
The object of my invention is to provide an inexpensive device of the class described which may be attached to elevators now in use, thereby eliminating all danger of falling due to the breaking of the hoisting-cable With these and other objects in view the present invention consists in the combination and arrangement of parts, as will be hereinafter more fully described, shown in the accomp anying drawings, and particularly pointed out in the appended claim, it being understood that changes in the form, proportion, size, and minor details may be made within the scope of the claim without departing from the spirit or sacrificing any of the advantages of the invention.
In the drawings, Figure 1 is a passengerelevator provided with my device. Fig. 2 is a front view of my device, showing in dotted lines the binding member in an inoperative position. Fig. 3 is a front view of the same with the casing partly broken away, showing the binding member in operative position. Fig. 4 is a side view.
Referring to the drawings, in which like numerals indicate corresponding parts throughout the several views, 1 is an elevator-car provided with a hoisting-cable 2, running over a pulley 3 to a winding-drum. Secured to beam 5 are guide-ropes 6, which are anchored at the bottom of the shaft in some suitable manner. Loops 7 and casings 8 engage the guide-ropes and serve to hold the car steady.
hoisting-cable 2.
As shown in Fig. 1 of the drawings, I secure my safety device in such position that the guide-rope 6 passes down through casing 8. Mounted in this casing is a shaft 9, to which is eccentrically keyed a cylindrical disk 10, having the part of its periphery which is brought into contact with the guiderope serrated. To the outer end of shaft 9 is secured an arm 11. When this arm is in an upright position, disk 10 is held out of engagement with guide-rope 6, as shown in Fig. 2. Spring 12 operates on the arm to hold the disk 10 into binding position with the guiderope. One end of chain 14 is clamped to The other is secured to arm 11 and serves to hold said arm in an upright or inoperative position. Should the cable break, however, chain 14 would be slackened and the spring 12 would move arm 11 toward a horizontal position, which in turn would cause the disk 10 to bind rope 6 against the side of easing 8, thereby holding the car from further descent.
Having thus described my invention, what I claim as novel, and desire to secure by Letters Patent, is-
In an elevator, the combination with a car of a guide-rope, a casing on said car through which said guide-rope passes, a safety device with an eccentrically-mounted binding member with a lever-arm fastened thereto by the shaft 9, said shaft being operated by the spring 12, said spring having a U- haped extension, the curved portion of which passes through said lever-arm and the main portion of which is coiled about said shaft and secured thereto at one end, said safety device being normally held out of operation by connection with the hoisting-cable.
In testimony whereof I afiiX my signature in presence of two witnesses.
JAMES MORGAN.
Witnesses:
THOMAS LANSDALE, HENRY MAnsH.
US25810805A 1905-04-29 1905-04-29 Elevator-catch. Expired - Lifetime US822538A (en)

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US25810805A US822538A (en) 1905-04-29 1905-04-29 Elevator-catch.

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US25810805A US822538A (en) 1905-04-29 1905-04-29 Elevator-catch.

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US822538A true US822538A (en) 1906-06-05

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5471774A (en) * 1992-10-05 1995-12-05 Hoyt; Wilber S. Lowerable changeable message and maintenance sign

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5471774A (en) * 1992-10-05 1995-12-05 Hoyt; Wilber S. Lowerable changeable message and maintenance sign

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