anvil
Enable an agent to recognise an anvil, assess its working surfaces and support, and judge its suitability for a proposed metalworking operation.
Research draft, second pass
A second pass drafted this model: the structure a model of this thing needs, and what is known about it in the world. The line under this one says how the second half was obtained - researched against sources, or recalled without web access, in which case nothing here was read anywhere and every claim is a lead to verify. Unreviewed either way.
recalled by Codex without web access - no source was read
Researched by: Codex
Purpose and description
Enable an agent to recognise an anvil, assess its working surfaces and support, and judge its suitability for a proposed metalworking operation.
An anvil is a passive tool with a hard working surface and a supporting body that resists hammer blows while metal or another workpiece is forged, shaped, straightened or otherwise worked.
It can be Select an appropriate face, horn or edge for a specified forming operation.; Check whether a removable tool fits an available hole and has adequate clearance.; Compare anvil dimensions, construction and condition against a proposed workpiece and striking method.; Assess mounting stability and identify adjustments needed before use.; Map damaged working areas and restrict operations that would load them.; Plan inspection, cleaning or specialist repair using documented construction and service history..
Distinguishing features
Its intended working role is to support a workpiece and resist applied metalworking forces rather than deliver the blow.
Its working surfaces are intended for direct forming contact; a general bench or pedestal primarily supports equipment or materials.
Identification depends on working role and construction, not a horn-shaped silhouette: hornless anvils remain possible.
A flat reference surface alone does not establish an anvil; a surface plate is intended for inspection rather than hammer forming.
Distinguish a standalone anvil from a removable stake or forming insert by whether it provides the principal support body or is tooling carried by another support.
Scope
+ Anvil forms used in forging, forming and related metalworking
+ Faces, horns, edges, steps and tool-receiving holes where present
+ Body and working-surface construction
+ Mass, working dimensions and mounting interfaces
+ Condition and suitability for specified tools, workpieces and operations
- Hammers, presses and other tools that supply the working force
- Forges, furnaces and workpiece heating processes
- Removable hardy tools, stakes and other anvil accessories as separate tool kinds
- Stands, foundations and workshop layouts as independently managed objects
- Product lines, individual asset records and ownership histories
- The anatomical incus, anvil clouds and anvils incorporated into measuring instruments
Characteristics
- Intended metalworking role
- general forging, bladesmithing, farriery, jewellery forming, other documented role, unknown The intended role determines which surfaces, dimensions and tooling interfaces are relevant.
- Body mass
- kg Mass informs handling, support requirements and suitability for the proposed impact work.
- Working-face dimensions
- usable length and width in mm These dimensions constrain workpiece placement and supported contact area.
- Working geometry
- flat face, round horn, square horn, step, other documented surface; presence and arrangement Available surfaces determine which shaping operations the anvil can support.
- Body and face construction
- documented material, integral or attached face, manufacturing method, unknown Construction affects interpretation of wear, cracking and proposed repairs.
- Working-surface hardness
- reported hardness with scale, test location and method; unknown if unverified Hardness evidence helps assess resistance to indentation and compatibility with intended contact.
- Tool-hole geometry
- opening shape, dimensions and usable depth in mm; absent where applicable Tool fit and punching clearance depend on actual geometry.
- Face and edge condition
- mapped wear, dents, chips, cracks, corrosion and edge radii; unassessed Local defects can mark workpieces or restrict safe working areas.
- Mounting relationship
- support type, bearing contact, retention method and observed movement The anvil and support must function together without unacceptable rocking or displacement.
- Service disposition
- unassessed, suitable for specified operation, restricted, withdrawn pending assessment An agent needs an operation-specific decision rather than an unsupported universal fitness label.
Also called
Where this came from
wikidata · CC0 1.0
Also registered as vr.tr.anvil
Drafted structure
Bundle to layer to finding to question, as the second pass will find it: 6 bundles · 11 layers · 17 findings · 28 questions.
Anvil identity Establish the metalworking sense and the boundaries of the anvil kind.
The name covers unrelated senses, while legitimate metalworking anvils do not all share the familiar horned form.
Working role
Identify the support function that makes the object an anvil.
Principal forming support
Record whether the object provides the working support against which metal is formed.
- What intended operation establishes this object as an anvil? definition
- Does it provide the principal working support, or is it an insert carried by another tool? boundary
Form and specialisation
Relate anvil form to its intended trade without treating a product design as the whole kind.
Documented anvil form
Record the form designation and the evidence connecting it to an intended use.
- Which trade or forming tasks is this anvil form intended to serve? definition
- What documentation supports the form designation rather than an identification based only on appearance? provenance
Working surfaces Describe the contact geometry available for supporting and shaping workpieces.
Anvil suitability depends on local surface geometry, including deliberately rounded edges and specialised forming areas.
Face and edges
Characterise the usable face and its transitions.
Usable contact geometry
Record face dimensions, profile and edge radii in relation to proposed work.
- What are the usable face dimensions and measured departures from the intended profile? measurement
- Which edge sections and radii suit the proposed bend or shoulder without unwanted marking? action
Horns and secondary surfaces
Characterise projecting and stepped working areas where present.
Local forming profiles
Record horn profiles, steps and other surfaces without assuming that every surface accepts the same treatment.
- Which horns, steps or secondary working surfaces are present, and what are their dimensions? measurement
- Which operations are supported on each surface by the documented design or an appropriate assessment? action
Construction and response Represent the anvil body, working face and evidence of their response to use.
Similar-looking anvils may have different materials, face attachments and repair constraints.
Body and face
Identify material construction and the relationship between the working surface and body.
Material and face evidence
Separate documented construction from visual guesses about material or hardening.
- What evidence identifies the body material and whether the face is integral or attached? provenance
- What hardness measurements or treatment records exist, and which working areas do they cover? measurement
Mass and working response
Capture mass and any assessed mechanical response with the conditions of assessment.
Response under stated conditions
Record working-response observations without using rebound or sound alone as a universal quality verdict.
- What is the anvil's measured or documented mass? measurement
- If rebound, vibration or acoustic response has been assessed, what method, location and mounting conditions were used? provenance
Tooling and support Describe how the anvil receives tooling and transfers working forces into its support.
Tool-hole fit, underside clearance and mounting stability can determine whether an otherwise suitable anvil can perform an operation.
Tool-receiving holes
Represent hardy holes, pritchel holes and other openings where present.
Tool fit and clearance
Record opening geometry and the clearance required by inserted tooling or punching work.
- What are the shape, dimensions and usable depth of each hole? measurement
- Does the proposed tool or punching operation have suitable fit and unobstructed clearance through the anvil and support? action
Base and mounting
Describe bearing surfaces and attachment to the supporting structure.
Stable working support
Assess the installed relationship between anvil, retention system and support.
- How does the base bear on the support, and how is the anvil retained? definition
- What assessment establishes adequate stability and access for the proposed work? action
Condition and use decisions Connect observed damage, repair history and operating constraints to specific use decisions.
An anvil may remain useful despite local wear, while particular defects or undocumented repairs require restrictions.
Damage and repair history
Locate deterioration and distinguish it from intended working geometry.
Working-area condition map
Map damage and repaired areas so condition can be evaluated where contact will occur.
- Where are dents, chips, cracks, corrosion or suspected face separation, and what are their measured extents? measurement
- What records identify welding, grinding, resurfacing or heat treatment performed during repair? provenance
Operation-specific disposition
Determine permitted work and necessary precautions from the actual anvil and installation.
Permitted work and restrictions
Record the basis for use, restricted contact areas, further inspection or withdrawal.
- Which proposed combinations of striking tool, workpiece and contact area are supported by the available evidence? action
- What restrictions or protective measures are required for observed chipping risk, workpiece ejection, noise or mounting movement? action
- Which manufacturer instructions or applicable standards, identified by issuing body and scope, govern this use decision? provenance
Evidence and external alignment What the world already says about this thing, gathered so the model can be checked against it.
A model that cannot be lined up against existing standards, identifiers and practice cannot be adopted by anyone who already uses them.
Reported evidence
Findings from the breadth pass, kept separate from the structural claims.
Check these first
Recalled without web access and unsourced; every item is a lead to verify.
- The tool sense is inferred from the name and domain because no sense was recorded.
- The mass range is an approximate workshop range, not a specification or limit; specialist anvils vary considerably.
- Construction, face hardness, dimensions and weight-marking conventions require verification for the particular pattern, maker and period.
- Which of these check these first hold for the sense of anvil this model covers, and on what evidence? provenance
Kinds and varieties
Recalled without web access and unsourced; every item is a lead to verify.
- London-pattern blacksmith's anvil
- Double-horn anvil
- Farrier's anvil
- Stake anvil
- Jeweller's anvil
- Saw-maker's anvil
- Which of these kinds and varieties hold for the sense of anvil this model covers, and on what evidence? provenance
Real-world use
Recalled without web access and unsourced; every item is a lead to verify.
- Supporting hot metal during hand forging, with power supplied by the operator's hammer blows.
- Shaping and fitting horseshoes.
- Straightening metal parts and setting rivets.
- Supporting small metal components during jewellery making.
- Supporting saw blades during hammer straightening and tensioning.
- Which of these real-world use hold for the sense of anvil this model covers, and on what evidence? provenance
Typical measurements
Recalled without web access and unsourced; every item is a lead to verify.
- Mass of a general workshop forging anvil - Approximately 20-200; portable examples can be lighter and large stationary examples heavier - kg
- Which of these typical measurements hold for the sense of anvil this model covers, and on what evidence? provenance
Failure modes and hazards
Recalled without web access and unsourced; every item is a lead to verify.
- Face or edge chipping can eject sharp fragments, particularly when brittle or damaged surfaces receive concentrated blows.
- Repeated use or unsuitable loading can dent, round or otherwise deform the working surface.
- A welded steel face can separate from its supporting body if the bond fails.
- An insecure mounting can allow the anvil to shift or tip; handling its mass presents crushing hazards.
- Hammering produces potentially harmful noise and can eject hot scale or workpieces.
- Which of these failure modes and hazards hold for the sense of anvil this model covers, and on what evidence? provenance
Regional variation
Recalled without web access and unsourced; every item is a lead to verify.
- The London pattern is associated with British practice, while several continental European patterns use two horns; these designs are now used internationally.
- Historical weight markings may use kilograms, pounds or hundredweight-based notation, depending on origin and date.
- Which of these regional variation hold for the sense of anvil this model covers, and on what evidence? provenance
Neighbouring kinds and how to tell them apart
Recalled without web access and unsourced; every item is a lead to verify.
- Swage block - A swage block principally provides shaped recesses and openings for forming work, whereas an anvil principally provides a surface that supports hammer blows.
- Bench block - A bench block is usually a compact flat support for small-scale metalworking; its boundary with a small anvil is conventional rather than absolute.
- Forging die - A forging die has working geometry intended to impose a particular shape, whereas a general-purpose anvil supports many shapes and operations.
- Incus - The anatomical anvil is a middle-ear bone; this entry covers the metalworking tool.
- Which of these neighbouring kinds and how to tell them apart hold for the sense of anvil this model covers, and on what evidence? provenance
What the second pass must settle
- Does the registry intend only standalone metalworking anvils, or also powered-hammer anvil blocks and other integral reaction supports?
- Where should the catalogue draw the boundary between small anvils, bench blocks and removable forming stakes?
- Which authoritative sources establish construction, hardness and dimensional ranges for the principal anvil forms?
- Which standards or manufacturer criteria apply to tooling fit, mounting, inspection and service withdrawal, and do any certification marks apply?
- What evidence is sufficient to assess suspected face separation or repaired working surfaces without relying on informal rebound or ringing tests?