[Calculations Card] Sling Chart- Safe Work Loads, Martin-Black Inc., Set of 3, Yellow Black White

Object/Artifact

-

Canadian Energy Museum

Name/Title

[Calculations Card] Sling Chart- Safe Work Loads, Martin-Black Inc., Set of 3, Yellow Black White

Entry/Object ID

2023.18.12

Tags

Yellow, Black, White, Martin-Black Wire Ropes, Martin-Black Inc., Calculator, Chart, Diagram, Wire Rope, Cable, Paper

Description

A set of three (duplicate) two-sided pocket chart bearing the calculations for safe work loads with various wire/cable configurations. Branded to Martin-Black Inc. (Martin-Black Wire Ropes of Canada Inc.). Front Design: The square cards have a white base with a light gloss finish. On the front on the cards is a logo for Martin-Black Inc., comprised of a yellow circle, with a find ring of black 6mm inside. At the centre of the circle in black stylised block text are the initials "MB" beneath which is thin text is "WIRE ROPE". At the top of the black ring, along the inner curve is the text "MADE IN ALBERTA", and along the bottom inner curve is the text "MARTIN BLACK INC.". Below the yellow circle, towards the bottom of the card is the text "MARTIN-BLACK INC.; 8400 -18 ST., EDMONTON, ALBERTA. TEL. (403) 467-1661; P.O. BOX 8630, STATION 'L' T6C 4J4. TELEX 037-3919". Back Design: On the back is the chart of calculations. Across the top are diagrams of the various wire/cable configuration (7 in total: Flemish Eye Slice; Vertical Hitch; Choker Hitch; Basket Hitch; 30° A.W.L 2 Legs; 25° A.W.L 2 Legs; 60° A.W.L 2 Legs). Below the diagrams are the measurement types (Rope Size in inches, then weight in pounds). The chart has 15 lines of calculations, with alternating fills of yellow and white, and black lines. The rope sizes covered are as follows: 1/4" 3/8" 12" 5/8" 3/4" 7/8" 1" 1 1/8" 1 1/4" 1 3/8" 1 1/2" 1 5/8" 1 3/4" 1 7/8" 2" Below the chart is the text: "The above safe working loads are calculated on improved plow steel 6x19 I.W.R.C from 1/4" diameter to 1" diameter inclusive and improved plow steel 6x37 1/W.R.C. from 1-1/8" diameter to 2" diameter inclusive."

Collection

Michael Armstrong Collection

Cataloged By

Danielle P. Lane

Category

Quick Reference Charts, Diagrams and Calculations
Manuals, Handbooks, and Guides, Documents and Paper Material

Acquisition

Accession

2023.18

Source or Donor

Michael Armstrong

Acquisition Method

Gift

Made/Created

Manufacturer

Martin-Black Wire Ropes

Place

* Untyped Place

Edmonton, Alberta

Lexicon

Nomenclature 4.0

Nomenclature Primary Object Term

Chart, Instructional

Nomenclature Primary Object Term

Chart

Nomenclature Sub-Class

Instructional Documents

Nomenclature Sub-Class

Graphic Documents

Nomenclature Class

Documentary Objects

Nomenclature Category

Category 08: Communication Objects

Dimensions

Height

89 mm

Width

102 mm

Material

Paper

Color

White, Yellow, Black

Condition

Reason for Exam

At Acquisition

Overall Condition

Good

Condition Detail

Stains, Creasing, Scratch, Dent, Wear

Date Examined

Jul 11, 2023

Examined By

Danielle P. Lane

Cleanliness

Yellow stains on the bottom-left corners of Charts #2 and #3. Scuffs on the gloss surface from wear/friction.

Surface

Light scratches and dents in the surface throughout all.

Materials

Dog ear crease to top-left corner of Chart #3 Vertical crease in the top-right of Chart #1

Created By

Danielle P. Lane

Create Date

July 8, 2023

Updated By

Danielle P. Lane

Update Date

September 26, 2024