Whitworth standard screw thread
E910896
The Whitworth standard screw thread is a pioneering 19th-century British screw thread system that became one of the first widely adopted international engineering standards for fasteners.
All labels observed (2)
| Label | Occurrences |
|---|---|
| British Standard Whitworth | 1 |
| Whitworth standard screw thread canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T11194466 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Whitworth standard screw thread Context triple: [Joseph Whitworth, notableWork, Whitworth standard screw thread]
-
A.
The Whitworth
The Whitworth is a prominent art gallery and museum in Manchester, England, renowned for its collections of fine art, textiles, and wallpapers and its integration with the surrounding park.
-
B.
Starrett
Starrett is a surname most notably associated with American actor Charles Starrett, famed for his roles in Western films.
-
C.
Babbitt
Babbitt is a surname most notably associated with American literary critic and academic Irving Babbitt.
-
D.
Babbitt
Babbitt is a 1934 American film adaptation of Sinclair Lewis’s novel, featuring Guy Kibbee in the title role as a middle-class businessman confronting the emptiness of his conformist life.
-
E.
Starrett Corporation
Starrett Corporation is a prominent New York real estate development and construction firm known for major industrial and commercial projects in the early to mid-20th century.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Whitworth standard screw thread Target entity description: The Whitworth standard screw thread is a pioneering 19th-century British screw thread system that became one of the first widely adopted international engineering standards for fasteners.
-
A.
The Whitworth
The Whitworth is a prominent art gallery and museum in Manchester, England, renowned for its collections of fine art, textiles, and wallpapers and its integration with the surrounding park.
-
B.
Starrett
Starrett is a surname most notably associated with American actor Charles Starrett, famed for his roles in Western films.
-
C.
Babbitt
Babbitt is a surname most notably associated with American literary critic and academic Irving Babbitt.
-
D.
Babbitt
Babbitt is a 1934 American film adaptation of Sinclair Lewis’s novel, featuring Guy Kibbee in the title role as a middle-class businessman confronting the emptiness of his conformist life.
-
E.
Starrett Corporation
Starrett Corporation is a prominent New York real estate development and construction firm known for major industrial and commercial projects in the early to mid-20th century.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
engineering standard
ⓘ
fastener standard ⓘ screw thread standard ⓘ |
| alsoKnownAs |
BSW thread
ⓘ
British Standard Whitworth ⓘ
linked to:
Whitworth standard screw thread
|
| countryOfOrigin | United Kingdom ⓘ |
| crestForm | rounded crest ⓘ |
| crestRadius | 0.1373 × pitch ⓘ |
| designGoal |
interchangeability of fasteners
ⓘ
reduction of variety in screw thread forms ⓘ |
| developer | Joseph Whitworth ⓘ |
| fieldOfUse |
manufacturing engineering
ⓘ
mechanical engineering ⓘ |
| geometryBasis | equilateral triangle with 55-degree included angle ⓘ |
| hasCoarseSeries | BSW coarse thread series ⓘ |
| historicalPeriodOfUse |
19th century
ⓘ
early 20th century ⓘ |
| historicalSignificance | foundation for later national and international thread standards ⓘ |
| inception | 1841 ⓘ |
| influenced |
British Standard Fine thread
ⓘ
linked to:
Whitworth screw thread system
British Standard Pipe thread ⓘ Unified Thread Standard ⓘ |
| measurementSystem | inch-based ⓘ |
| notableFeature |
first standardised screw thread system in Britain
ⓘ
one of the earliest internationally adopted engineering standards ⓘ |
| pitchUnit | threads per inch ⓘ |
| relatedStandard |
BSF (British Standard Fine)
ⓘ
BSP (British Standard Pipe) ⓘ |
| replacedBy |
Unified Thread Standard in many applications
ⓘ
metric ISO thread in many applications ⓘ |
| rootForm | rounded root ⓘ |
| rootRadius | 0.1373 × pitch ⓘ |
| standardDesignation | BSW ⓘ |
| standardizedBy | British Standards Institution ⓘ |
| systemOfUnits | imperial system ⓘ |
| threadAngle | 55 degrees ⓘ |
| threadDepth | 0.6403 × pitch ⓘ |
| threadDirection | primarily right-hand ⓘ |
| threadForm | V-thread with rounded crests and roots ⓘ |
| typicalApplications |
automotive fasteners in early British vehicles
ⓘ
early British machinery ⓘ railway equipment ⓘ steam engines ⓘ |
| usedFor |
bolts
ⓘ
nuts ⓘ screws ⓘ studs ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Whitworth standard screw thread Description of subject: The Whitworth standard screw thread is a pioneering 19th-century British screw thread system that became one of the first widely adopted international engineering standards for fasteners.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Whitworth standard screw thread