MEETING MINUTES

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.