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MEETING MINUTES

May 10th, 2022

MESA  MEETING

 

Date:  May 10, 2022

Time:  12:00PM

Location:  Jake & Joe’s Norwood, MA

 

Attendance: refer to sign-in attendance sheet

 

MEETING MINUTES:

 

 

Mike Policar of Bethlehem Wire Rope discussed wire rope with our meeting attendees.  Topics reviewed included:

 

  • Wire rope:         

    • Breaking strength

    • Rope Construction

      • # of wires in strand

      • Strand around core

      • 8x19 is standard

        • 8 strands

        • 19 wires per strand

      • Core Types-

        • Vegetable fiber core

          • Uniform strand support

          • Current industry standard

        • Synthetic fiber core

          • Improved strand support

          • Improved fatigue lift

          • Reduced stretch

        • Independent Wire Rope Core

          • Higher strength

          • Minimum stretch

          • Good for high rise

          • Steel core

          • Improved diameter retention

          • Must pay close attention to lubrication because there is NO wick

      • Rope Stretch

        • Pre-stretch limits stretch after installation

          • Elastic Stretch + construction stretch on non pre-stretch can total up to 12 ¼”!

        • Elastic stretch

          • Recoverable deformation of the metal itself

        • Constructional

          • Non-recoverable pull down of strands and compression of core

          • Highest percentage occurs immediately after installation

        • Dynamic

      • Lays

        • Lang Lay

          • Everything goes to the right (strands, core)

          • More contact area and more flexible

        • Regular lay

          • Less contact area

      • Rope Damage

        • Wire Rope Breaks

          • A17.6- 3 chapters one is for wire rope

            • Changes to steel ropes

              • Breakage % allowable

                • Valley breaks are from the inside out

              • Diameter requirements

        • Wire Rope Wear

        • Wire Rope Build up

        • Signs of wear:

          • Visible wear marks on the rope

          • Particle throw-off

          • Rouging

      • Maintenance of Ropes

        • Cleaning and lubricating

          • Never use solvents 

      • Slippage causes:

        • Excessive CWT

        • Overloading

        • Less tan 1”/ 100” difference is considered creepage

      • Vibration:

        • Rope diameter variations can be a cause

        • Wrong rope specification

        • Misalignment of sheave

        • Varying groove depths

        • Poor tensioning

        • Work sheaves (especially with new ropes)

        • Worn bearings

        • Improperly balanced car

        • Controls

 

 

ALP’s Bruce Mock, presented their clamp on line tension meter and its capabilities: 

  • Clamp on line tension meter

    • Measures tension and sends readings directly to your smart phone

      • Can handle a variety of rope diameters

      • Easy connection to rope for reading

    • Cost is around $4400 with app included

    • The App offers reporting including

      • Car weighing or Car balancing

 

 

BUSINESS MEETING:

Next Meeting:  At Draper Elevator June 9, 2022 @ 2PM (this is a Thursday)

  • An RSVP link will be sent out

  • Food truck will be invited.  

 

SCHOLARSHIP:

  • 4 applicants this year

    • 2 scholarships will be given and announced next month!

 

CRUISE:  

  • July 21- 4pm -7pm  

  • Only 5 spots remain open and a waiting list will be available

  • There is room for additional sponsors

 

ANNUAL CHARITY:

  • Guide Dogs of America- 

    • MESA will support training for a guide dog

 

MEMBERSHIPS:

  • Memberships @ goal- 1 company away from goal

    • 20 company memberships 

    • 8 individual memberships

BUDGET:

  • Budget is on track.

    • Boat Cruise

    • Golf

    • Internet fees

SAFETY:

  • Needle safety and awareness.