windmill

Wind-to-work identity

Record evidence that the wind-catching assembly was intended to drive mechanical work.

1. What work was the wind-driven shaft intended to perform, and through which machinery? definition
2. What evidence distinguishes this installation from an electricity-only turbine, wind indicator or decorative replica? boundary

Original and present configuration

Record changes that affect recognition, completeness and operating assumptions.

1. Which records or physical traces establish the original rotor, transmission and working machinery? provenance
2. Which assemblies are original, replaced, missing or converted to another power source? definition

Effective wind-catching assembly

Capture rotor geometry, component completeness and adjustable wind-catching surfaces.

1. What are the rotor-axis orientation, sail or blade count and swept dimensions? measurement
2. Which surfaces can be adjusted or removed, and what is their current setting and condition? definition

Orientation capability

Identify whether and how the rotor, cap or body changes orientation.

1. Does this design require directional alignment, and which assembly and mechanism provide it? definition
2. What nearby obstructions or movement limits affect wind exposure, orientation or sail clearance? boundary

Power-path continuity

Record the actual connected path and its observable mechanical condition.

1. Through which shafts, gears and couplings does rotor motion reach each load, and where can that path be interrupted? definition
2. What inspection evidence establishes alignment, bearing condition, gear engagement and freedom from seizure? provenance

Load readiness and demand

Record load compatibility, engagement state and constraints passed back from the driven machine.

1. Which driven machines are connected, and what speed, direction and load requirements do their records specify? boundary
2. What must be verified at each driven machine before engaging or disengaging its load? action

Structural load path

Record supporting members, joints and foundation conditions relevant to continued use.

1. Which members, joints and foundations carry the rotor, transmission and wind-induced forces? definition
2. Where have decay, corrosion, cracking, looseness or settlement been observed, and how were they assessed? provenance

Retention and clearance

Record evidence about secure attachment and unobstructed intended movement.

1. What is known about the condition and retention of sail or blade attachments, the rotor shaft and movable structural supports? provenance
2. What clearances, play or deformation have been measured, and against which installation-specific criteria? measurement

Permitted operating state

Record the evidence supporting operation, restrictions or a decision to leave readiness unresolved.

1. What documented wind, rotor-speed, load and sail-setting limits apply to the present configuration? provenance
2. Do current observations, inspection status and operator authority support the proposed operation? action

Control and isolation evidence

Record applicable controls, restraints and isolation procedures, including other connected energy sources.

1. Which mechanisms reduce wind capture, stop rotation or restrain movement, and what evidence establishes their present effectiveness? provenance
2. What installation-specific procedure and verification are required before entering the rotor sweep or accessing the transmission? action
3. Which auxiliary drives, connected loads or stored mechanical energy could cause movement after the wind rotor stops? boundary

Kinds and varieties

Reported by the breadth pass; each item needs checking against its source before it becomes normative.

1. Which of these kinds and varieties hold for the sense of windmill this model covers, and on what evidence? provenance

Identifiers and schemes

Reported by the breadth pass; each item needs checking against its source before it becomes normative.

1. Which of these identifiers and schemes hold for the sense of windmill this model covers, and on what evidence? provenance

Standards and regulation

Reported by the breadth pass; each item needs checking against its source before it becomes normative.

1. Which of these standards and regulation hold for the sense of windmill this model covers, and on what evidence? provenance

Real-world use

Reported by the breadth pass; each item needs checking against its source before it becomes normative.

1. Which of these real-world use hold for the sense of windmill this model covers, and on what evidence? provenance

Typical measurements

Reported by the breadth pass; each item needs checking against its source before it becomes normative.

1. Which of these typical measurements hold for the sense of windmill this model covers, and on what evidence? provenance

Failure modes and hazards

Reported by the breadth pass; each item needs checking against its source before it becomes normative.

1. Which of these failure modes and hazards hold for the sense of windmill this model covers, and on what evidence? provenance

Regional variation

Reported by the breadth pass; each item needs checking against its source before it becomes normative.

1. Which of these regional variation hold for the sense of windmill this model covers, and on what evidence? provenance

Neighbouring kinds and how to tell them apart

Reported by the breadth pass; each item needs checking against its source before it becomes normative.

1. Which of these neighbouring kinds and how to tell them apart hold for the sense of windmill this model covers, and on what evidence? provenance