TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

NUMBER THREADS [35 records]

Record 1 2016-10-21

English

Subject field(s)
  • Tools and Equipment (Textile Industries)
  • Textile Weaving (Textile Industries)
DEF

A machine for winding simultaneously a number of threads in distinct, equal lengths and approximately parallel onto a drum, reel or beam.

OBS

warping machine; warper: not to be confused with "warping mill," which is an earlier version of the "warping machine."

OBS

warping machine: term and definition standardized by ISO.

French

Domaine(s)
  • Outillage et équipement (Industries du textile)
  • Tissage (Industries du textile)
DEF

Machine servant à enrouler simultanément un certain nombre de fils de même longueur déterminée et à les disposer approximativement parallèles sur un tambour ou une ensouple.

OBS

ourdissoir : terme et définition normalisés par l'ISO.

Spanish

Campo(s) temático(s)
  • Herramientas y equipo (Industrias textiles)
  • Tejeduría (Industrias textiles)
DEF

Máquina devanadora con la cual se prepara la urdimbre arrollando los hilos de ésta en el enjulio.

Save record 1

Record 2 2013-02-08

English

Subject field(s)
  • Legal Documents
CONT

Data feature. The visible image of the MRP [machine readable passport] data page may contain concealed information which may be detected by a suitable device built into the reader. The concealed information may be in the security printed image but it is more usually incorporated into the personalization data, especially the portrait.... The information might, for example, be the passport number. The reader could then be programmed to compare the passport number detected from the feature with the passport number appearing in the MRZ [machine readable zone].... Examples of this type of feature are : encoded data stored on the document in magnetic media such as special security threads; designs incorporating the concealed data which only become detectable when viewed using a specific wavelength of light, optical filters, or a specific image processing software.

French

Domaine(s)
  • Documents juridiques
CONT

Élément de données. L’image visible de la page de données du PLM [passeport lisible à la machine] peut contenir des renseignements cachés, détectables par un dispositif approprié intégré dans l’appareil de lecture. Ces renseignements cachés peuvent être dissimulés dans l’image imprimée de sécurité, mais ils se trouvent le plus souvent incorporés dans les renseignements personnels, notamment dans le portrait. [...] Le renseignement peut être, par exemple, le numéro du passeport. Le lecteur peut donc être programmé pour comparer le numéro dissimulé dans l’élément avec le numéro inscrit dans la ZLA [zone de lecture automatique]. [...] Autres exemples de ce type d’élément : données codées stockées dans le document sur des médias magnétiques tels des fils de sécurité spéciaux; conception incorporant les données dissimulées de manière qu’elles ne deviennent visibles que sous une lumière à longueur d’onde déterminée, ou avec des filtres optiques, ou un logiciel de traitement d’images particulier.

Spanish

Save record 2

Record 3 2010-03-30

English

Subject field(s)
  • Engineering Tests and Reliability
  • Textile Industries
DEF

In fabric testing, a tensile strength test made on a strip of fabric raveled down to a specified number of threads or width of fabric, all of which are firmly held in grips wider than the test piece.

CONT

Several of the most important strength parameters include Tongue Tear, Grab Tensile, Strip Tensile and Adhesion.

French

Domaine(s)
  • Fiabilité, contrôle et essais (Ingénierie)
  • Industries du textile
CONT

Parmi les paramètres importants pour le calcul de la résistance des tissus, mentionnons la résistance à la déchirure sur languette, l'essai d'arrachement et l'essai sur bande, les essais de traction et les essais d'abrasion.

Spanish

Save record 3

Record 4 2007-04-03

English

Subject field(s)
  • Needle Embroidery
CONT

In counted-thread embroidery, patterns are created by making stitches over a pre-determined number of threads in the foundation fabric. Counted-thread embroidery is more easily worked on an even-weave foundation fabric such as embroidery canvas, aida cloth, or specially woven cotton and linen fabrics although non-evenweave linen is used as well.

French

Domaine(s)
  • Broderie à l'aiguille
DEF

Broderie au point de croix sur une toile sans motif peint [ce qui implique que] pour reproduire un diagramme il faut [...] compter les points.

Spanish

Save record 4

Record 5 2006-02-22

English

Subject field(s)
  • Knitted and Stretch Fabrics
DEF

A warp-knitted fabric in which one full set of warp threads traverses progressively by one needle space in a diagonal direction for a number of courses and then returns, in similar manner, to the starting position.

French

Domaine(s)
  • Tricot et tissus extensibles
DEF

Tricot dans lequel le liage de chaque fil évolue plusieurs fois de suite dans le même sens et revient ensuite en sens inverse.

Spanish

Save record 5

Record 6 2005-10-26

English

Subject field(s)
  • Joining Elements (Mechanical Components)
CONT

Unified and American National screw thread standards for screws, bolts, nuts, and other threaded parts consist of six series of threads and a selection of special threads that cover nonstandard combinations of diameter and pitch. In general, the unified screw threads are limited to three series : coarse(UNC), fine(UNF), and extrafine(UNEF). A 1/4-inch-diameter thread in the UNC series has 20 threads/in., while in the UNF it has 28... The extrafine thread series(UNEF and NEF) is used principally in aeronautical structures where an extremely shallow thread is needed for thin-walled material and where a maximum practicable number of threads is required for a given length.

French

Domaine(s)
  • Éléments d'assemblage (Composants mécaniques)
OBS

Série à filets surfins. Largement utilisée dans l'assemblage d'équipement et d'instruments en aéronautique pour le taraudage de pièces minces, de tubes, de viroles, de brides et de plateaux d'accouplement, de douilles, etc, et lorsqu'il importe d'avoir un nombre maximal de filets sur une longueur requise.

OBS

«UNEF» = Unified extra-fine thread («pas extra-fin»).

OBS

extrafin : Cette graphie, puisée des Rectifications de l'orthographe recommandées par le Conseil supérieur de la langue française, est attestée dans le Petit Robert (2004).

Spanish

Save record 6

Record 7 2005-10-26

English

Subject field(s)
  • Joining Elements (Mechanical Components)
CONT

Unified and American National screw thread standards for screws, bolts, nuts, and other threaded parts consist of six series of threads and a selection of special threads that cover nonstandard combinations of diameter and pitch. In general, the unified screw threads are limited to three series : coarse(UNC), fine(UNF), and extrafine(UNEF). A 1/4-inch.-diameter thread in the UNC series has 20 threads/in., while in the UNF series it has 28.... The extrafine thread series(UNEF and NEF) is used principally in aeronautical structures where an extremely shallow thread is needed for thin-walled material and where a maximum practicable number of threads is required for a given length.

OBS

See also "8N", "8UN", "12N", "12UN", and "16N", "16UN", which concern the 8-, 12- and 16-thread series.

French

Domaine(s)
  • Éléments d'assemblage (Composants mécaniques)
CONT

Norme BS 1580 : 1953 «Unified Screw Threads». Il s'agit des filetages cylindriques de mécanique générale, au profil ISO, mais avec les cotes en pouces. Depuis 1949, le Royaume-Uni, le Canada et les États-Unis se sont mis d'accord sur ces filetages et leur désignation : «UNC» pour «Unified coarse thread» (gros pas); «UNF» pour «Unified fine thread» (pas fin) : «UNEF» pour «Unified extra-fine» (pas extra fin); «UN» pour «Unified constant pitch» (pas constant). Ces filetages figurent [...] d'une manière plus complète dans la norme américaine ASA B1.1-1960 qui concerne les filetages unifiés.

OBS

extrafin : Cette graphie, puisée des Rectifications de l'orthographe recommandées par le Conseil supérieur de la langue française, est attestée dans le Petit Robert (2004).

Spanish

Save record 7

Record 8 2004-09-13

English

Subject field(s)
  • Needle Embroidery
CONT

Running stitches would appear to be the simplest of all the stitch types to work, and in many ways, they are... This is why the running stitch and its variants are frequently worked on fabrics that have an even weave, with every stitch length covering a predetermined number of fabric threads. Unlike the majority of embroidery stitches, almost all the running stitches can be worked by picking up several stitches on the needle before pulling the needle and thread through.

OBS

The running stitches comprise the basic running stitch, the darning stitch, the holbein or double running stitch, the double darning and the Japanese darning.

French

Domaine(s)
  • Broderie à l'aiguille
CONT

Les points glissés (appelés aussi points devant) sont particulièrement simples à exécuter [...] C'est pour cette raison que le point devant et ses variantes sont fréquemment travaillés sur des tissus à armure toile à contexture carrée qui permettent d'établir à l'avance le nombre de fils que comportera chaque point et d'obtenir ainsi une grande régularité.

OBS

Font partie des points glissés, le point devant classique, le point de trait, le point de trait à double face et le point de trait japonais.

Spanish

Save record 8

Record 9 2002-10-24

English

Subject field(s)
  • Textile Weaving (Textile Industries)
DEF

A weave having a weave repeat of at least five weft threads and five warp threads in which each end interlaces once only and the step number is greater than one. It should be noted that the number of threads in a weave repeat and the step number may not have a common divisor.

OBS

sateen weave: Term standardized by ISO.

French

Domaine(s)
  • Tissage (Industries du textile)
DEF

Armure ayant un rapport d'armure comprenant au moins cinq fils de trame et cinq fils de chaîne, dans lequel chaque fil ne s'entrecroise qu'une fois seulement et où le décochement est supérieur à 1. Il est à remarquer que le nombre de fils dans le rapport d'armure et le décochement ne peuvent avoir un diviseur commun.

OBS

armure satin : Terme normalisé par l'ISO.

Spanish

Campo(s) temático(s)
  • Tejeduría (Industrias textiles)
Save record 9

Record 10 2002-10-15

English

Subject field(s)
  • Textile Industries
  • Textile Weaving (Textile Industries)
DEF

Number of warp threads per unit length measured on the warping drum or reel.

French

Domaine(s)
  • Industries du textile
  • Tissage (Industries du textile)
DEF

Nombre de fils de chaîne par unité de longueur, compté sur le tambour ou le rouleau d'ourdissage.

DEF

Nombre de fils de chaîne par unité de longueur. Ce nombre est rapporté, en général, au centimètre, exceptionnellement au décimètre.

Spanish

Campo(s) temático(s)
  • Industrias textiles
  • Tejeduría (Industrias textiles)
Save record 10

Record 11 2002-08-21

English

Subject field(s)
  • Descriptive Geometry
  • Gears and Friction Wheels
DEF

The axial distance between consecutive corresponding profiles of a worm.

OBS

The axial pitch is equal to the quotient of the lead divided by the number of threads.

OBS

Terminology of worm gear geometry.

OBS

axial pitch: term and definition standardized by ISO.

French

Domaine(s)
  • Géométrie descriptive
  • Engrenages et roues de friction
DEF

Distance axiale entre deux profils homologues consécutifs de la vis.

OBS

Le pas axial est égal au quotient du pas hélicoïdal par le nombre de filets.

OBS

Terminologie de la géométrie des engrenages à vis.

OBS

pas axial : terme et définition normalisés par l'ISO.

Spanish

Save record 11

Record 12 2002-03-15

English

Subject field(s)
  • Textile Industries
DEF

An inorganic, woven glass fiber fabric coated with hot asphalt coating. This leno weave glass is produced by interlocking two parallel warp(length) ends. The low number of count threads per inch gives this product more pattern stability while maintaining excellent tensile strength and conformability to irregular surfaces. Excellent repair fabric for both new and old construction in roofing and waterproofing applications. Other applications include : foundations, slabs, tunnels...

French

Domaine(s)
  • Industries du textile
CONT

Les tissus de verre sont un matériau pour de nombreuses applications industrielles [...] qualité : incombustibilité, excellent isolant [...]

Spanish

Save record 12

Record 13 2002-02-19

English

Subject field(s)
  • Textile Industries
  • Textile Weaving (Textile Industries)
DEF

The number of warp threads per inch or other convenient unit.

French

Domaine(s)
  • Industries du textile
  • Tissage (Industries du textile)

Spanish

Save record 13

Record 14 2001-02-27

English

Subject field(s)
  • Textile Industries
  • Textile Weaving (Textile Industries)
DEF

A term used to describe a woven construction in which the same size yarn and the same number of threads per inch is used in both warp and filling directions.

French

Domaine(s)
  • Industries du textile
  • Tissage (Industries du textile)
OBS

armure : Mode d'entrecroisement des fils de chaîne et de trame. Contexture; étoffe, tissage, tissu; - Principales armures (satin, sergé, uni : armures de base et armures dérivées). Armure toile.

Spanish

Save record 14

Record 15 2000-12-18

English

Subject field(s)
  • Weaving Arts
DEF

A rod with loops used on simple looms for making a shed opening. It lies in front of, or above, the warp and is attached by loops to those warp threads that are back of the shed stick.

CONT

By the raising of the heddle rod these threads are brought forward to form a shed counter to that made by the shed stick. The number of heddle rods may be increased for patterning purposes.

French

Domaine(s)
  • Tissage (Artisanat)
DEF

Tige, généralement en bois, parallèle aux ensouples, placées au-dessus de la tête du licier et à laquelle on fixe les lices.

Spanish

Save record 15

Record 16 2000-05-17

English

Subject field(s)
  • Textile Industries
  • Textile Weaving (Textile Industries)
  • Fabric Nomenclature
DEF

A term describing a woven fabric with the same size yarn and the same number of threads per inch in both the warp and the filling direction.

OBS

balanced: Term describing cloth with the same size yarn and same number of ends and picks in warp and filling.

French

Domaine(s)
  • Industries du textile
  • Tissage (Industries du textile)
  • Nomenclature des tissus
DEF

Se dit d'une étoffe tissée avec des fils de même grosseur et avec le même nombre de fils par pouce dans les deux sens chaîne et trame.

Spanish

Save record 16

Record 17 2000-02-09

English

Subject field(s)
  • Equipment (Oil and Natural Gas Extraction)
  • Oil Drilling
DEF

A saver sub that fits in the drill stem between the kelly and drill pipe.

OBS

Since a large number of joints of drill pipe are made up on the kelly, the saver minimizes wear on the threads of the kelly in that the drill pipe actually mates with the threads of the saver rather than the kelly.

French

Domaine(s)
  • Outillage (Extraction du pétrole et du gaz)
  • Forage des puits de pétrole
DEF

Raccord venant sur le filetage vif de la tige carrée pour éviter son usure prématurée.

Key term(s)
  • raccord d'usure de la tige carrée

Spanish

Save record 17

Record 18 2000-02-09

English

Subject field(s)
  • Oil Drilling
  • Boring and Drilling (Mines)
  • Geological Research and Exploration
DEF

... the number of threads or distance beyond the coupling or gauge in casing.

French

Domaine(s)
  • Forage des puits de pétrole
  • Sondage et forage miniers
  • Recherches et prospections géologiques
DEF

Longueur de filetage mâle, qui dépasse du filetage femelle après vissage à fond, dans le calibrage du filetage des joints de tiges.

Spanish

Save record 18

Record 19 2000-01-18

English

Subject field(s)
  • Textile Industries
  • Engineering Tests and Reliability
DEF

Analysis of fabric. Such a description of a sample of weaving, which would enable a weaver to produce a fabric identical with the sample. In analysis the following data must be found : 1. Yarn, or yarns used. Their composition, colour, twist, count of yarn. 2. Count of cloth. Number of threads per inch warp and weft. 3. Weave and pattern if any. 4. Finishing.

CONT

Fabric analysis: Construction; Weave Diagram; Weight/Yield; Fabric Type.

Key term(s)
  • analysis of fabrics

French

Domaine(s)
  • Industries du textile
  • Fiabilité, contrôle et essais (Ingénierie)

Spanish

Save record 19

Record 20 1998-08-24

English

Subject field(s)
  • Textile Weaving (Textile Industries)
DEF

One of the basic weaves... The face of the fabric consists almost completely of warp or filling floats produced in the repeat of the weave. The points of intersection are distributed as evenly and widely separated as possible. Satin weave fabric has a characteristic smooth, lustrous surface and has a considerably greater number of yarns in the set of threads... that forms the face than in the other set.

French

Domaine(s)
  • Tissage (Industries du textile)
CONT

Dans l'armure satin, les points de croisement (points de liage) de la trame avec la chaîne sont disposés en quinconce. Comme les sergés, ces tissus ont une face effet chaîne et une face effet trame.

CONT

On fait dominer, sur une face, soit les flottés chaîne, soit les flottés trame, mais on atténue «l'effet oblique» par un décalage ou décochement plus ample [...] La face endroit est unie, lisse, souvent d'aspect brillant.

Spanish

Save record 20

Record 21 1998-06-09

English

Subject field(s)
  • Joining Elements (Mechanical Components)
  • Aeronautical Engineering and Maintenance
CONT

The unified thread form accompanied by the unified thread standards has in the past fulfilled the necessary requirements for interchangeability of threaded products between the United States, Great Britain, and Canada. This modified thread form represented two compromises between British Whitworth and United Stated National thread forms. The British accepted the 60° thread angle of the American thread, and the Americans accepted a rounded root and crest similar to the Whitworth form. The United States National unified form for external threads has a rounded root and may have either a rounded or flat crest. The unified thread contours provide advantages over both the earlier forms .... The unified thread is a general-purpose thread that is particularly suited for fasteners.

CONT

Unified and American National screw thread standards ... consist of six series of threads and a selection of special threads that cover nonstandard combinations of diameter and pitch. In general, the unified screw threads are limited to three series; coarse (UNC), fine (UNF), and extrafine (UNEF).

OBS

Under the unified system, threads are specified by giving in order the nominal diameter, number of threads per inch, the initial letters such as UNC or UNF that identify the series, and class of thread(IA, 2A, and 3A or 1B, 2B and 3B).... the specification for a left-hand thread must have the letters LH included.

OBS

See also "8UN", "12UN", and "16UN", which designate the 8-, 12-, and 16-thread series.

CONT

[Example of a thread identification by standardized symbols]:1/2-13UNC-2ALH.

OBS

unified thread: term standardized by ISO.

French

Domaine(s)
  • Éléments d'assemblage (Composants mécaniques)
  • Aérotechnique et maintenance
CONT

Depuis 1949, le Royaume-Uni, le Canada et les Etats-Unis se sont mis d'accord sur ces filetages et leur désignation : «UNC» pour "Unified coarse thread [...] «UNF» pour «Unified fine thread» [...] «UNEF» pour «Unified extra-fine» [...] «UN» pour «Unified constant pitch» [...] Ces filetages figurent [...] dans la norme américaine ASA B1.1-1960 qui concerne les filetages unifiés.

CONT

Le filetage «Unified National» comprend les séries à filets gros et les séries à filets fins.

OBS

filetage en inches à profil UNJ : terme normalisé par l'ISO.

Spanish

Save record 21

Record 22 1997-12-18

English

Subject field(s)
  • Textile Weaving (Textile Industries)
DEF

A length of thread between adjacent interlacings.

OBS

The length of a float is defined by the number of warp threads over which a weft thread goes, or the number of weft threads over which a warp thread goes, as relevant.

OBS

float: term and definition standardized by ISO (International Organization for Standardization).

French

Domaine(s)
  • Tissage (Industries du textile)
DEF

Longueur de fil entre deux entrelacements adjacents.

OBS

La longueur d'un flotté est donnée par le nombre de fils de chaîne sur lequel passe une duite ou le nombre de duites sur lequel passe un fil de chaîne, selon le cas.

OBS

flotté : terme et définition normalisés par l'ISO (Organisation internationale de normalisation).

Spanish

Save record 22

Record 23 1996-10-11

English

Subject field(s)
  • Textile Weaving (Textile Industries)
DEF

The smallest number of warp and weft threads required for the pattern of a weave.

OBS

weave repeat: Term and definition standardized by ISO and AFNOR.

Key term(s)
  • weave unit

French

Domaine(s)
  • Tissage (Industries du textile)
DEF

Le plus petit nombre de fils de chaîne et de duites nécessaires pour le dessin d'armure.

DEF

Nombre de fils de chaîne et de duites, nécessaire et suffisant à la reproduction de l'armure.

OBS

rapport d'armure : Terme et définition normalisés par l'ISO et l'AFNOR.

Spanish

Save record 23

Record 24 1994-07-06

English

Subject field(s)
  • Sewing (General)
DEF

A mode of ornamenting textile fabrics, in which a number of threads of a material are drawn out and the cross threads tied together in the middle.

CONT

The fagoting stitch is a decorative stitch used to join two fabric sections across an open seam.

French

Domaine(s)
  • Couture (Généralités)
DEF

Point de couture en ligne brisée pour assembler ou orner.

CONT

Le point de chausson maintient à plat certaines coutures et à l'ourlet, il empêche l'effilochage. Il peut servir à réunir deux morceaux juxtaposés sans ajouter d'épaisseur. Il est légèrement élastique et convient aux ourlets en tissu extensible.

Spanish

Save record 24

Record 25 1994-03-11

English

Subject field(s)
  • Tools and Equipment (Textile Industries)
  • Knitted and Stretch Fabrics
DEF

Machine(e. g. tricot machine) in which the needles are in straight lines and in which stitches are formed simultaneously by a large number of threads(warp) running in the longitudinal direction.

OBS

Term and definition standardized by ISO.

French

Domaine(s)
  • Outillage et équipement (Industries du textile)
  • Tricot et tissus extensibles
DEF

Machine (par exemple machine à tricoter) sur laquelle les aiguilles sont en ligne droite et où les mailles sont formées simultanément par un grand nombre de fils (de chaîne) disposés dans le sens de la longueur.

OBS

Terme et définition normalisés par l'ISO.

Spanish

Save record 25

Record 26 1994-02-24

English

Subject field(s)
  • Cycling
  • Motorcycles and Snowmobiles
DEF

A small tool used to tighten or loosen the spokes by turning the nipples.

CONT

to tighten a loose spoke : Using spoke wrench, alternately tighten the spoke nipple a half-turn and pluck the spoke until it has the same tone as the others or until the same number of threads are showing.

French

Domaine(s)
  • Cyclisme
  • Motos et motoneiges
CONT

à l'aide d'un outil, la clé à rayons, on visse ou on dévisse les écrous fixant les rayons à la jante [...] ce qui permet de ramener petit à petit la jante dans un même plan et de supprimer le voile

Spanish

Save record 26

Record 27 1994-01-21

English

Subject field(s)
  • Knitted and Stretch Fabrics
  • Knitting Techniques - Various
DEF

A warp-knitted fabric in which one full set of warp threads traverses progressively by two needle spaces in a diagonal direction for a number of courses and then returns, in similar manner, to the starting position.

French

Domaine(s)
  • Tricot et tissus extensibles
  • Techniques de tricot diverses

Spanish

Save record 27

Record 28 1988-12-22

English

Subject field(s)
  • Joining Elements (Mechanical Components)
CONT

Unified and American National screw thread standards for screws, bolts, nuts, and other threaded parts consist of six series of threads and selection of special threads that cover nonstandard combinations of diameter and pitch. In general, the unified screw threads are limited to three series: coarse (UNC), fine (UNF), and extrafine(UNEF). A 1/4-inch.-diameter thread in the UNC series has 20 threads/in., while in the UNF series it has 28. In the unified and American National standards, the coarse thread series (UNC and NC) is recommended for general industrial use on threaded machine parts and for screws and bolts. Because a coarse thread has fewer threads per inch than a fine thread of the same diameter, the helix angle is greater, and the thread travels farther in one turn. A coarse thread is preferred when rapidity and ease of assembly are desired, and where strength and clamping power are not of prime importance.

CONT

Threads are designated by standardized notes. Under the unified system, threads are specified by giving in order the nominal diameter, number of threads per inch, the initial letters such as UNC or UNF that identify the series, and class of thread(1A, 2A, and 3A or 1B, 2B and 3B). Threads are considered to be right-hand and single unless otherwise noted; therefore the specification for a left-hand thread must have the letters LH included.

CONT

[Example of a thread identification by standardized symbols]: 1/2-13UNC-2ALH.

French

Domaine(s)
  • Éléments d'assemblage (Composants mécaniques)
CONT

Norme BS 1580 : 1953 "Unified Screw Threads". Il s'agit des filetages cylindriques de mécanique générale, au profil ISO, mais avec les cotes en pouces. Depuis 1949, le Royaume-Uni, le Canada et les États-Unis se sont mis d'accord sur ces filetages et leur désignation : "UNC" pour "Unified coarse thread" (gros pas)"; "UNF" pour "Unified fine thread"(pas fin); "UNEF" pour "Unified extra-fine thread" (pas extra-fin); "UN" pour "Unified constant pitch" (pas constant). Ces filetages figurent [...] d'une manière plus complète dans la norme américaine ASA B1.1-1960 qui concerne les filetages unifiés.

Spanish

Save record 28

Record 29 1988-12-22

English

Subject field(s)
  • Joining Elements (Mechanical Components)
CONT

Threads are designated by standardized notes. Under the unified system, threads are specified by giving in order the nominal diameter, number of threads per inch, the initial letters such as UNC or UNF that identify the series, and class of thread(1A, 2A, and 3A or 1B, 2B, and 3B). Threads are considered to be right-hand and single unless otherwise noted; therefore the specification for a left-hand thread must have the letters LH included.

CONT

Example of a thread identification by standardized symbols: 1/2-13UNC-2ALH.

French

Domaine(s)
  • Éléments d'assemblage (Composants mécaniques)
OBS

Voir fiches "thread class" et "left-hand thread".

Spanish

Save record 29

Record 30 1988-12-22

English

Subject field(s)
  • Joining Elements (Mechanical Components)
CONT

The manufacturing tolerance and allowance permitted distinguishes one class of thread from another under the unified thread system. Because allowance is an intentional difference between correlated size dimensions of mating threads, and tolerance is the difference between limits of size, a thread class may be considered to control the looseness or tightness between mating threaded parts. The American National standard for unified and National screw threads provides classes 1A, 2A and 3A for external threads, classes 1B, 2B and 3B for internal threads, and classes 2 and 3 for both internal and external threads. Classes 1A and 2B are for ordnance and other special uses. Classes 2A and 2B are the recognized standards for the bulk of screw-thread work and for the normal production of threads on screws, bolts, and nuts. Classes 3A and 3B are for applications where smaller tolerances than those afforded by 2A and 2B are justified ....

CONT

1/2-13UNC-2ALH. [The thread class here is 2A].

CONT

Threads are designated by standardized notes. Under the unified system, threads are specified by giving in order the nominal diameter, number of threads per inch, the initial letters such as UNC or UNF that identify the series, and class of thread(1A, 2A, and 3A or 1B, 2B and 3B). Threads are considered to be right-hand and single unless otherwise noted; therefore the specification for a left-hand thread must have the letters LH included.

CONT

[Example of a thread identification by standardized symbol]: 1/2-13UNC-2ALH.

French

Domaine(s)
  • Éléments d'assemblage (Composants mécaniques)
CONT

Degrés de précision des filets. On entend par ajustement des pièces de visserie, le jeu au montage entre la tige filetée et le taraudage. Les types d'ajustement pour les divers degrés de précision requis pour les filets normalisés "Unified" se divisent en trois catégories : 1A, 2A et 3A pour les filets extérieurs, et 1B, 2B et 3B pour les filets intérieurs. Ces catégories différent entre elles par l'importance du jeu et la tolérance.

Spanish

Save record 30

Record 31 1988-12-22

English

Subject field(s)
  • Joining Elements (Mechanical Components)
CONT

Unified and American National screw thread standards for screws, bolts, nuts, and other threaded parts consist of six series of threads and a selection of special threads that cover nonstandard combinations of diameter and pitch. In general, the unified screw threads are limited to three series: coarse (UNC), fine (UNF), and extrafine (UNEF). A 1/4-inch.-diameter thread in the UNC series has 20 threads/in., while in the UNF series it has 28. ... The fine thread series (UNF and NF) is recommended for general use in the automotive and air craft fields for threads subject to strong vibration. In general, a fine thread should be used only where close adjustment, extra strength, or increased resistance to loosening is a factor.

CONT

Threads are designated by standardized notes. Under the unified system, threads are specified by giving in order the nominal diameter, number of threads per inch, the initial letters such as UNC or UNF that identify the series, and class of thread(1A, 2A, and 3A or 1B, 2B, and 3B). Threads are considered to be right-hand and single unless otherwise noted; therefore the specification for a left-hand thread must have the letters LH included.

CONT

[Example of a thread identification by standardized symbols]: 1/2-13UNC-2ALH.

French

Domaine(s)
  • Éléments d'assemblage (Composants mécaniques)
CONT

Norme BS 1580 : 1953 "Unified Screw Threads". Il s'agit des filetages cylindriques de mécanique générale, au profil ISO, mais avec les cotes en pouces. Depuis 1949, le Royaume-Uni, le Canada et les États-Unis se sont mis d'accord sur ces filetages et leur désignation : "UNC" pour "Unified coarse thread" (gros pas). "UNF" pour "Unified fine thread" (pas fin). "UNEF" pour "Unified extra-fine thread" (pas extra-fin). "UN" pour "Unified constant pitch" (pas constant). Ces filetages figurent [...] d'une manière plus complète dans la norme américaine ASA B1.1-1960 qui concerne les filetages unifiés.

Spanish

Save record 31

Record 32 1988-01-15

English

Subject field(s)
  • General Scientific and Technical Vocabulary
  • Machine-Tooling (Metallurgy)
DEF

A tool for measuring the number of threads per inch [or metric distance] of internal and external threads.

Key term(s)
  • screw thread pitch gage
  • thread pitch gage

French

Domaine(s)
  • Vocabulaire technique et scientifique général
  • Usinage (Métallurgie)
DEF

Calibre permettant de relever les pas.

CONT

Pour relever les pas, on peut faire usage d'une jauge de filetage. Il en existe en pas métriques et en pas Whitworth.

Spanish

Save record 32

Record 33 1981-03-05

English

Subject field(s)
  • Bearings and Bearing Systems (Mechanical Components)
OBS

Type SR TRANS ROL screws employ planetary rollers. They consist of a threaded screw shaft(...), and an internally threaded nut(...) and a number of threaded rollers(...). The rollers are positioned in the space between the screw shaft and the nut and mesh with the threads of both.

OBS

I can not tell whether the French is a translation of the English or vice versa.

French

Domaine(s)
  • Paliers, coussinets et roulements (Composants mécaniques)
OBS

Le type SR est appelé vis à rouleaux satellites (...). Il est constitué d'une tige filetée (...), d'un écrou avec filetage intérieur (...) et d'un certain nombre de rouleaux filetés (...). Les rouleaux sont logés entre l'écrou et la vis, établissant un contact avec les filets de l'un cet de l'autre. (...) Les rouleaux satellites présentent toujours un seul filet.

Spanish

Save record 33

Record 34 1975-03-11

English

Subject field(s)
  • Thread Spinning (Textiles)
  • Textile Weaving (Textile Industries)
OBS

--to wind one group of warp threads and then wind the next group. All the blocks are eventually placed side by side across the width of the beam and make up together the number of ends required in the final fabric.

French

Domaine(s)
  • Filature (Textiles)
  • Tissage (Industries du textile)
OBS

l'ourdissage peut être réalisé en totalité (ourdissage classique) ou fractionné (--).

Spanish

Save record 34

Record 35 1975-03-11

English

Subject field(s)
  • Textile Weaving (Textile Industries)
OBS

the order of interlacing in any--may be found by the use of the base(...) This is determined by dividing the number of threads in the repeat into 2 parts so that(...) the one part is not a multiple of the other.

French

Domaine(s)
  • Tissage (Industries du textile)
OBS

--satins obtenus en se conformant à la règle suivante des décochements: le décochement doit être un nombre premier avec le rapport d'armure (satin de 5-7-8-9...25) [p.4]

Spanish

Save record 35

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