Plywood Tea Chests, Part 5: Assembly and Packing

IS 10 (Part 5) - 1976: Scope Overview

• Scope: This part of IS 10 covers the design of tea-chests, focusing on materials, dimensions, and structural requirements.
• Reference Standard: Definitions and terminologies are aligned with IS 707-1976 (General specifications for wooden packing cases).
• Purpose: To ensure tea-chests are structurally sound for storage and transport.

Key Points:

• Material: Typically plywood or wooden planks as per IS 707.
• Dimensions: Standardized sizes for tea-chests are specified to optimize packing and handling.
• Structural Design: Ensures resistance against stacking loads and handling stresses.

Typical Structural Considerations (from general knowledge):

flowchart LR
    A[IS 10 Part 5: Tea-Chest Design] --> B[Material: Wood/Plywood per IS 707]
    A --> C[Dimensions: Standardized Sizes]
    A --> D[Structural Design: Load & Handling]
    D --> E[Stacking Load Capacity]
    D --> F[Joint Specifications]

For detailed formulas or tables, refer to IS 707 for material specs and IS 10 Part 5 for design parameters.

IS 10 Part 5 (1976) – Definitions Summary

• Reference for Definitions: Clause 2.1 states all definitions follow IS 707:1976 (Glossary of Timber Terms).
• Key Terms Covered: Timber species, plywood, battens, linings, tissue paper, fittings, and tea-chest components.
• Linings & Tissue Paper: Must comply with Table 1 of IS 10 (Part I) - 1976, specifying material quality and thickness.
• Rounding Off: Numerical values in design and specifications follow revised rounding rules (standard engineering practice).

Important Reference Tables (from IS 10 Part I)

Summary Diagram of Tea-Chest Components (IS 10 Part V)

graph TD
    A[Tea-Chest] --> B[Plywood Panels]
    A --> C[Battens]
    A --> D[Linings]
    A --> E[Tissue Paper]
    A --> F[Fittings]

Note: For detailed design formulas and specifications, consult IS 10 Parts I-IV alongside Part V.

Design of Tea-Chest as per IS 10 (Part 5) - 1976

• Construction:

  • Tea-chest made from 6 plywood panels forming a shook (box) and 12 battens (support strips).
  • Accessories per IS 10 (Part 1) - 1976 apply (metal corners, nails, etc.).

• Dimensions:

  • Standard example: 48 cm x 48 cm x 60 cm (width x breadth x height).

• Assembly Process (Clause 6.1):

  • Panels are nailed together with metal corners.
  • Total 88 nails used along metal corners.
  • Top panel is left semi-fixed (slidable) for easy filling during packing.
  • Nail fixing: One nail on each side of 8 corners (16 nails) plus nails along edges.

• Key Specifications:

  • Use plywood panels as per IS 707-1976 for quality and thickness.
  • Battens provide rigidity and protect edges.
  • Nail size and spacing as per IS 10 (Part 1).

Nail Fixing Summary

flowchart LR
    A[Plywood Panels (6)] --> B[Assembled into Shook]
    B --> C[Fix 12 Battens]
    C --> D[Fix Metal Corners with Nails (88 nails)]
    D --> E[Top Panel Slidable for Filling]

Note: For detailed nail sizes, plywood thickness, and battens dimensions, refer IS 10 (Part 1) and IS 707.

IS 10 Part 5 (1976) - Materials Key Points

• Metal Fittings:
  Must comply with IS 10 Part IV (1976). This covers specifications for hinges, handles, nails, screws, etc.

• Linings and Tissue Paper:
  Shall conform to Table 1 of IS 10 Part I (1976), which specifies types, dimensions, and quality of linings and tissue paper used inside tea-chests.

• Material Collection (Clause 6.1.1):
  Collect materials as per Table 1 of IS 10 Part I before assembly.

  • Battens covered with tissue paper
  • Panels lined internally before assembly (except for test chests)

Typical Table 1 (IS 10 Part I) - Materials Summary (Example)

Notes on Rounding Off Numerical Values:

Follow IS rounding rules for dimensions and weights to maintain consistency.

flowchart LR
    A[Collect Materials as per Table 1, IS 10 Part I] --> B[Cover Battens with Tissue Paper]
    B --> C[Line Panels Internally]
    C --> D[Assemble Tea Chest]

For detailed dimensions and material grades, refer to IS 10 Parts I and IV directly.

IS 10 Part 5 (1976) — Components Specifications for Tea-Chests

• Dimensions: All dimensions are in centimetres (cm). Typical tea-chest size: 48 × 48 × 60 cm (L × W × H).

• Key Components:

  • Bottom and Top Battens: Fixed as per Operation 3.
  • Corner Battens and Side Panels: Fixed as per Operation 2.
  • Bottom Panel and 'V' Notched Metal Fittings: Fixed as per Operation 4.

• Linings and Tissue Paper: Must conform to Table 1 of IS 10 Part I (1976) for quality and specifications.

• Notch Metal Fittings: Used for joint reinforcement; dimensions and fixing details are standardized but not explicitly tabulated here.

Summary Table (Conceptual)

Notes:

• Refer to IS 10 Part I to IV for detailed materials and fittings specifications.
• Follow rounding rules for numerical values as per IS code.
• Use standard timber technology terms from IS glossary.

flowchart LR
    A[Tea-Chest Assembly] --> B[Fix Corner Battens & Side Panels]
    B --> C[Fix Bottom & Top Battens]
    C --> D[Fix Bottom Panel & V-Notched Metal Fittings]
    D --> E[Apply Linings & Tissue Paper]

This flow ensures structural integrity and compliance with IS 10 Part 5.

IS 10 Part 5 (1976) — Assembly Operations for Plywood Tea-Chests

Key Specifications & Operations

• Dimensions: All dimensions in cm (e.g., 48 × 48 × 60 cm chest size).
• Material Preparation (Clause 6.1.1):
  • Collect materials per Table 1 of IS 10 Part 1 (battens, panels).
  • Cover battens with tissue paper; line panels internally (except test chests).

Assembly Operations (Fig. 2 Reference)

Notch Metal Fittings

• Used to reinforce corners and joints.
• Dimensions and notch details per Fig. 2 (refer IS 10 Part 5).

Summary Diagram of Assembly Flow

flowchart TD
    A[Collect Materials] --> B[Cover Battens & Line Panels]
    B --> C[Fix Corner Battens & Side Panels]
    C --> D[Fix Bottom & Top Battens]
    D --> E[Fix Bottom Panel & Metal Fittings]
    E --> F[Final Assembly Check]

For exact dimensions and further details, consult Table 1 of IS 10 Part 1 and Fig. 2 of IS 10 Part 5.

IS 10 Part 5 (1976) – Packing Procedures for Plywood Tea-Chests: Key Points

• Scope: Covers assembly and packing requirements for plywood tea-chests (Clause 1.1).
• Packing Operation:
  • Tea-chests must be fully packed with tea before final nailing (Clause 6.1.6).
  • Complete all unfinished nailing to fully close the chest, ensuring secure packing (Fig. 1 referenced).
• Rounding Off:
  • Test results and measurements must be rounded per IS 2-1960, maintaining the same significant figures as specified values (Clause 0.4).

Important Notes:

• No explicit formulas or tables are provided in IS 10 Part 5 for packing.
• Packing quality relies on complete filling and secure nailing to prevent damage during transport.
• Assembly and packing procedures emphasize uniformity and international coordination (Clause 0.3).

Summary Diagram of Packing Operation (Clause 6.1.6):

flowchart LR
    A[Start: Tea-chest assembly] --> B[Fill chest fully with tea]
    B --> C[Complete unfinished nailing (bottom and sides)]
    C --> D[Chest fully closed and secured]
    D --> E[Ready for transport/storage]

For detailed dimensions or strength requirements, refer to IS 10 Part 1-4 or relevant timber standards.

IS 10 Part 5 (1976) — Mass and Marking Requirements for Tea-Chests

Key Specifications (Clause 8.2)

• Mass Marking:
  • Both gross mass of the chest and net mass of the tea packed must be clearly marked on the chest.
  • Marking is typically on the chest's top panel.
• Top Panel Fixing:
  • The top panel must be fixed similarly to the bottom panel as per Clause 5.5 (lining and tissue paper requirements).

Mass Limits (Refer Clause 8.1 & IS 10 Part I)

• Maximum empty chest mass must comply with IS 10 (Part I) - 1976.
• Typical tea-chest size: 48 cm x 48 cm x 60 cm (height).

Additional Notes:

• Linings and tissue paper conform to Table 1 in IS 10 (Part I).
• Rounding off of masses should follow the rules specified in IS standards.

Summary Table (Mass Marking)

Diagram: Tea-Chest Mass Marking Location

graph TD
A[Tea Chest] --> B[Top Panel]
B --> C[Mark Gross Mass]
B --> D[Mark Net Mass]

For detailed plywood, battens, and fittings specs, refer to IS 10 Parts I-IV (fourth revision).

IS 10 (Part 5) - 1976 covers Quality Control in Structural Steel Sections. Although the code lacks explicit clauses, key quality control aspects typically include:

Key Quality Control Parameters:

• Chemical Composition: Verify via spectrochemical analysis to ensure conformity with IS 2062.
• Mechanical Properties: Tensile strength, yield strength, elongation as per IS 2062.
• Dimensional Tolerances: Check section dimensions against IS 808.
• Surface Quality: Inspect for cracks, laminations, and other defects.
• Welding and Fabrication: Follow IS 816 for welding quality standards.

Typical Quality Control Tests:

Summary:

• Ensure chemical and mechanical properties conform to IS 2062.
• Maintain dimensional tolerances per IS 808.
• Perform non-destructive testing (NDT) for internal defects.
• Follow fabrication and welding standards as per IS 816.

flowchart TD
    A[Raw Material Inspection] --> B[Chemical Composition Check]
    B --> C[Mechanical Testing]
    C --> D[Dimensional Verification]
    D --> E[Surface & Defect Inspection]
    E --> F[Fabrication & Welding Quality]
    F --> G[Final Approval]

This ensures structural steel sections meet quality and safety requirements.

IS 10 Part 5 (1976) – Handling and Storage of Plywood Tea-Chests: Key Points

This part focuses on assembly and packing of plywood tea-chests (size example: 48 × 48 × 60 cm), emphasizing proper fixing of battens, panels, and metal fittings to ensure safe handling and storage.

Key Specifications:

• Dimensions: All dimensions are in centimetres.
• Assembly:
  • Fix corner battens and side panels first.
  • Fix bottom and top battens next.
  • Attach bottom panel and 'V' notched metal fittings for reinforcement.
• Rounding Off: Final test values must be rounded per IS: 2-1960, maintaining the same significant digits as specified.

Handling & Storage Guidelines (Derived from best practices and IS 10 context):

• Store tea-chests in a dry, ventilated area to prevent moisture damage.
• Stack carefully to avoid deformation; use battens as spacers.
• Protect from direct sunlight and rain.
• Use proper lifting methods to avoid damage to joints and fittings.

Assembly Diagram (Simplified):

graph TD
  A[Corner Battens & Side Panels] --> B[Bottom & Top Battens]
  B --> C[Bottom Panel & 'V' Notched Metal Fittings]
  C --> D[Complete Tea-Chest Assembly]

For detailed dimensions and fixing methods, refer to Fig. 2 of IS 10 Part 5.

Summary: Proper assembly using battens and metal fittings ensures durability during handling and storage. Follow dimensional and rounding rules as per IS 10 and IS 2. Store in dry, ventilated conditions to maintain quality.