US922607A - Safety device for elevators. - Google Patents

Safety device for elevators. Download PDF

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Publication number
US922607A
US922607A US42964608A US1908429646A US922607A US 922607 A US922607 A US 922607A US 42964608 A US42964608 A US 42964608A US 1908429646 A US1908429646 A US 1908429646A US 922607 A US922607 A US 922607A
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Prior art keywords
car
rod
shipper
elevators
elevator
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US42964608A
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Honore Martineau
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
    • B66B13/24—Safety devices in passenger lifts, not otherwise provided for, for preventing trapping of passengers
    • B66B13/28—Safety devices in passenger lifts, not otherwise provided for, for preventing trapping of passengers between car or cage and wells

Definitions

  • This invention relates to improvements in safety devices for elevators and more particularly for freight elevators.
  • the object of the invention is to provide an attachment or mechanism for freight elevators, whereby the upward movement of the elevator will be instantly stopped in case any object carried thereon projects beyond the platform of the car and would strike the edge of the opening in the floor through which the car passes and constituting a part of the elevator-shaft.
  • the invention consists in associating with the shipper-rod of the elevator, mechanism by which the car during its upward movement will be instantly locked to the shipper-rod, whereby the mechanism which raises and lowers the car will be rendered inoperative.
  • FIG. 1 is a perspective view of a freight elevator showing the same about to pass through an opening in the floor of a building and with the attachments operatively arranged with relation to the car for operating the shipper-rod.
  • Fig. 2 is a transverse sectional view through the ships per-rod and rack-bar on the line 22 of Fig. 1 looking in the direction of the arrow and before the car is locked to the shipper-rod.
  • Fig. 3 is a view similar to Fig. 2 after the locking engagement of the car and the shipper-rod is effected.
  • a designates a portion of the flooring of the building provided with the usual elevator-shaft or opening 6.
  • the car shown in the drawing is lhat of a freight elevator and is designated Secured by bolts or lag-screws to the underside of the flooring a are depending brackets d and al and pivoted to the bracket 01 is an elbowlever 6 having the arms f and g, and pivoted to the bracket d is an arm h, the arms 9 and h being connected together by means of a bar i.
  • the arm f has attached to it a cord or chain that passes through a ring-shaped opening in the bracket 7c, its other end being attached to a finger m that is rotatably mounted on the shipper-rod n by means of the loose collar 0, that is connected to a coiled spring p, the other end of the spring being attached to the collar 1" that is fixed to the shipper-rod n by means ofthe set screw 8.
  • the spring p acts normally to move the finger m away from the teeth of the rack-bar t that is carried by the car 0.
  • Located above the collar 0 is another collar a secured to the rod n by means of a setnut o. This collar is provided with a stop to against which a pin r strikes for limiting the outward movement of the finger m.
  • the shipper rod a extends the entire height of the building and is loosely mounted in the different floors so that the operator of the car can raise and lower the same when starting and stopping the car by means of the usual handle P.
  • the opposite side of the elevator opening is provided with brackets similar to d and d only one of which is shown, and a cord or chain (1 that extends through the bracket lc is also secured to the finger m.
  • the shipper-rod n is normally held so that the finger m is out of engagement with the teeth to of the bar t, that is to say in the po sition shown in Fig. 2.
  • a rack carried by said elevator-car, means for normally retaining the finger away from the rack, and automatic means for locking the finger and rack together during the movement of said car, as described.

Description

H. MABTINEAU, SAFETY DEVIGE 1 0B ELEVATORS.
APPLICATION FILED KPR. 28.1908.
If m W m ii: w Z M w v1 "J2 HONORE MARTINEAU, Ol HOLYOKE, l\i[ASSACI-IUSEl".l.S.
SAFETY DEVICE FOR ELEVATORS.
Specification of Letters Patent.
Patented May 25, 1909.
Application filed April 28, 1908. Serial No. 429,646.
To all whom it may concern:
Be it known that I, HoNoRn MARTINEAU, a subject of the King of England, residing at Holyoke, in the county of Hampden and State of Massachusetts, have invented new and useful Improvements in Safety Devices for Elevators, of which the following is a specification.
This invention relates to improvements in safety devices for elevators and more particularly for freight elevators.
The object of the invention is to provide an attachment or mechanism for freight elevators, whereby the upward movement of the elevator will be instantly stopped in case any object carried thereon projects beyond the platform of the car and would strike the edge of the opening in the floor through which the car passes and constituting a part of the elevator-shaft.
Broadly, the invention consists in associating with the shipper-rod of the elevator, mechanism by which the car during its upward movement will be instantly locked to the shipper-rod, whereby the mechanism which raises and lowers the car will be rendered inoperative.
Referring to the drawings forming a part of this application,-Figure l is a perspective view of a freight elevator showing the same about to pass through an opening in the floor of a building and with the attachments operatively arranged with relation to the car for operating the shipper-rod. Fig. 2 is a transverse sectional view through the ships per-rod and rack-bar on the line 22 of Fig. 1 looking in the direction of the arrow and before the car is locked to the shipper-rod. Fig. 3 is a view similar to Fig. 2 after the locking engagement of the car and the shipper-rod is effected.
Referring to the drawings in detail,a designates a portion of the flooring of the building provided with the usual elevator-shaft or opening 6. The car shown in the drawing is lhat of a freight elevator and is designated Secured by bolts or lag-screws to the underside of the flooring a are depending brackets d and al and pivoted to the bracket 01 is an elbowlever 6 having the arms f and g, and pivoted to the bracket d is an arm h, the arms 9 and h being connected together by means of a bar i.
The arm f has attached to it a cord or chain that passes through a ring-shaped opening in the bracket 7c, its other end being attached to a finger m that is rotatably mounted on the shipper-rod n by means of the loose collar 0, that is connected to a coiled spring p, the other end of the spring being attached to the collar 1" that is fixed to the shipper-rod n by means ofthe set screw 8. The spring p acts normally to move the finger m away from the teeth of the rack-bar t that is carried by the car 0. Located above the collar 0 is another collar a secured to the rod n by means of a setnut o. This collar is provided with a stop to against which a pin r strikes for limiting the outward movement of the finger m.
The shipper rod a extends the entire height of the building and is loosely mounted in the different floors so that the operator of the car can raise and lower the same when starting and stopping the car by means of the usual handle P. The opposite side of the elevator opening is provided with brackets similar to d and d only one of which is shown, and a cord or chain (1 that extends through the bracket lc is also secured to the finger m.
The shipper-rod n is normally held so that the finger m is out of engagement with the teeth to of the bar t, that is to say in the po sition shown in Fig. 2.
2 designates an object or piece of freight on the platform of the elevator that is shown projecting beyond the vertical edge y of the car, and in engagement with the under side of the horizontal bar 41. The continued u ward movement of the car will bring t e block or object 2 into contact with the bar i thus elevating the arms 9 and 7t and causing the arm f to draw on the cord or chain j in the direction of the arrow. This action will rotate the finger m against the tension of the spring p, by means of the chain j, into locking engagement with the teeth of the bar t which will lock the car to the shipper rod, thus elevating the same and causing the actuation of the usual belt-shipping and driving mechanism (not shown) so as to stop the car before any damage is done to the flooring or elevator on account of the object 2 projecting beyond the edge y of the platform.
After the stopping of the car the operator can of course move the shipper-rod so as to impart a reverse or downward movement to the same, thus permitting the object 2 to be removed as readily understood What I claim, is:
1. In combination with an elevator-car, means for starting and stopping said car, said means comprising the usual shipper rod, a
5 locking finger carried by the shipper-rod, a rack carried by said car, and automatically operated means for moving the locking finger into engagement with the rack.
2. The combination With a shipper-rod,
10 an elevator-car, a finger carried by said rod,
a rack carried by said elevator-car, means for normally retaining the finger away from the rack, and automatic means for locking the finger and rack together during the movement of said car, as described.
HONORE MARTINEAU.
Vfitnesses K. CLEMoNs, H. W. BOWEN.
US42964608A 1908-04-28 1908-04-28 Safety device for elevators. Expired - Lifetime US922607A (en)

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US42964608A US922607A (en) 1908-04-28 1908-04-28 Safety device for elevators.

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US42964608A US922607A (en) 1908-04-28 1908-04-28 Safety device for elevators.

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3405819A (en) * 1966-02-25 1968-10-15 Triax Co Guard against obstructing load in an automatic warehousing system
US4556129A (en) * 1983-02-07 1985-12-03 Diesel Equipment Limited Trip mechanism for de-activating elevator platforms

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3405819A (en) * 1966-02-25 1968-10-15 Triax Co Guard against obstructing load in an automatic warehousing system
US4556129A (en) * 1983-02-07 1985-12-03 Diesel Equipment Limited Trip mechanism for de-activating elevator platforms

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