EP0198148B1 - Shuttle insertion device for a loom - Google Patents
Shuttle insertion device for a loom Download PDFInfo
- Publication number
- EP0198148B1 EP0198148B1 EP19860100004 EP86100004A EP0198148B1 EP 0198148 B1 EP0198148 B1 EP 0198148B1 EP 19860100004 EP19860100004 EP 19860100004 EP 86100004 A EP86100004 A EP 86100004A EP 0198148 B1 EP0198148 B1 EP 0198148B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- movement
- roll
- shuttle
- shoe
- rifle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D49/00—Details or constructional features not specially adapted for looms of a particular type
- D03D49/24—Mechanisms for inserting shuttle in shed
- D03D49/26—Picking mechanisms, e.g. for propelling gripper shuttles or dummy shuttles
Definitions
- the invention relates to a device for shooting weft handling on a mechanical weaving machine with a rifle racket which is supported on a roller shoe arranged between two locking levers and is connected via a toggle lever made of crank and connecting rod and a traction means to a drive (power source).
- a device of the above type in which an impact arm is set in motion by a mechanical drive.
- a roller is supported by an impact arm, which is connected to a run-up curve piece.
- This run-up curve piece can be attacked and overrun by a beater roller attached to a sub-shaft wheel.
- the shooter strikes the shooter at the other end of the swivel joint and drives him through the weaving machine.
- This device has the disadvantage that the movement of the striking arm is transmitted directly to the rifle club, so that its acceleration takes place linearly.
- a curved acceleration is desired, the acceleration increasing rapidly after a slow start.
- Such acceleration is achieved, for example, by a device according to CH-A 580 696.
- the shooter drive is done there by electromagnetic means.
- a crank-connecting rod linkage is actuated via this shooter drive, by means of which the shooter hit is given an accelerated movement.
- This unsprung weaver drive essentially meets expectations, but practice has shown that its applicability is limited. This is particularly so because the electromagnet used for the rifle drive is not able to follow shot entries in quick succession.
- this acceleration curve achieved by this device is also not yet ideal.
- the object of the present invention is to optimize an unsprung, inevitable acceleration of the rifle club.
- the movement of the roller skate and thus also the striking movement of the marksman can be influenced, so that the actual acceleration curve approximates to a desired ideal curve.
- the bearing position of the locking lever on the support is set higher than the coupling point on the roller skate in the starting position of the rifle racket, the roller skate executes a somewhat circular movement during a striking movement, as a result of which the roller skate is pulled outwards. This results in a slight offset of the longitudinal axis of the rifle club, which causes the deviation in the acceleration is largely canceled by a desired ideal curve.
- a further improvement of the device can be seen in the fact that the traction means is connected to an impact arm, the movement of which is limited by a buffer and a limiting device.
- the beater arm has a per se known run-up curve piece which can be rolled over by a beater roller on a sub-shaft wheel. This bilateral limitation of the beater arm prevents the beater arm from springing back in its respective end positions, so that the weaving machine can be operated more smoothly.
- the shooter drive shown in FIGS. 1 and 2 is arranged, for example, on the right side of the weaving machine.
- a striking roller f is attached to a rotating sub-shaft wheel h of the weaving machine.
- D is a striking arm, to which a run-up curve piece e is connected.
- An articulated linkage formed from a crank a and a connecting rod b is articulated on a rifle club i.
- On the crank a is a circular segment-like part c attached over which an inelastic, flexible traction device g, for example a steel wire rope, is placed.
- the traction means g is attached at one end with a traction means holding block k to the circular segment-like part c and at its other end with a traction means holding block l on the striking arm d.
- the rifle racket i is connected at its lower end to a roller shoe m, the radius of curvature of which is in the center of the point of contact of the rifle with the picker, e.g. can be approximately 800 mm.
- the roller skate m is prevented from evading horizontally by means of two locking levers n.
- the levers n are fixed in place on a support m1, but are rotatably mounted and, on the other hand, are movably coupled to the one end n1 of the rolling shoe m.
- the rolling shoe m is controlled somewhat outwards by the circular movement at the beginning of the striking movement - to the right in FIG. 1, whereby the deviation of the acceleration, see the dashed curve in FIG. 3, is largely canceled out compared to the solid curve with constant acceleration force.
- crank a in FIG. 1 is pulled back into its initial position by a return spring q and at the same time is held in the extended position with the connecting rod b by a hold-down belt r.
- the racket i is stopped by a racket not shown.
- a buffer t for example made of wood, limits the movement of the beater arm d which in turn is connected to the weaving machine frame with a tab u.
- S denotes a limiting device which limits the retraction movement of the striking arm d to the starting position.
- the return movement of the striking arm d takes over a tension spring w, which is articulated on the striking arm d at point w1.
- FIG. 3 shows the movement sequence for a uniform crank movement shown in FIG. 4 of a linkage composed of a crank a and a connecting rod b with the uniformly accelerated movement of the rifle club i derived therefrom along the line A-E.
- the dashed curve shows the rifle shot acceleration with uniform movement and the solid curve shows the rifle shot acceleration with constant acceleration force.
- the rifle shot acceleration achievable with the described shooter drive can largely be approximated to the ideal, extended acceleration curve.
- Fig. 5 shows the energy expenditure in the described shooter drive (dashed area) and in a shooter drive with a force suddenly to be applied. In the latter case, this force BK is to be applied over the entire stroke SW, while with the described shooter drive a larger final force KK can be achieved with less energy consumption.
- the vertical KK corresponds to the effective force increase at 45 degrees crank rotation, see FIG. 4.
- the KK is 1.4 times the BK, with a 1.4 times the shooter speed, which results in an increase in weaving performance Has.
- the force ratios can be influenced by the choice of the length ratio between the crank a and the connecting rod b and by the way in which the crank a is actuated and in which lever length it is attacked.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Looms (AREA)
Description
Die Erfindung betrifft eine Einrichtung für die Schützschussabfertigung an einer mechanischen Webmaschine mit einem Schützenschläger der auf einem zwischen zwei Sperrhebeln angeordneten Abrollschuh abgestützt und über einen Kniehebel aus Kurbel und Pleuel sowie ein Zugmittel mit einem Antreib (Kraftquelle) verbunden ist.The invention relates to a device for shooting weft handling on a mechanical weaving machine with a rifle racket which is supported on a roller shoe arranged between two locking levers and is connected via a toggle lever made of crank and connecting rod and a traction means to a drive (power source).
Aus der GB-A 226 341 ist beispielsweise eine Einrichtung der o.g. Art bekannt, bei der ein Schlagarm durch einen mechanischen Antrieb in Bewegung versetzt wird. Hierzu liegt einer Rolle ein Schlagarm auf, der mit einem Auflaufkurvenstück verbunden ist. Dieses Auflaufkurvenstück kann von einer an einem Unterwellenrad befestigten Schlagrollen angegriffen und überrollt werden. Dadurch bewegt sich der Schlagarm nach unten, wobei die Rolle des Schützenschlägers mitgenommen wird und der Schützenschläger um ein Drehgelenk dreht. Dabei beaufschlagt der Schützenschläger andernends des Drehgelenks den Schützen und treibt ihn durch die Webmaschine. Diese Einrichtung hat den Nachteil, dass eine direkte Übertragung der Bewegung des Schlagarms auf den Schützenschläger stattfindet, so dass seine Beschleunigung linear erfolgt. Gewünscht ist aber eine kurvenförmige Beschleunigung, wobei die Beschleunigung nach einem langsamen Beginn rasch ansteigt.From GB-A 226 341, for example, a device of the above type is known, in which an impact arm is set in motion by a mechanical drive. For this purpose, a roller is supported by an impact arm, which is connected to a run-up curve piece. This run-up curve piece can be attacked and overrun by a beater roller attached to a sub-shaft wheel. This causes the striker arm to move downward, taking the role of the rifle stick with it and rotating the rifle stick around a swivel joint. The shooter strikes the shooter at the other end of the swivel joint and drives him through the weaving machine. This device has the disadvantage that the movement of the striking arm is transmitted directly to the rifle club, so that its acceleration takes place linearly. However, a curved acceleration is desired, the acceleration increasing rapidly after a slow start.
Eine derartige Beschleunigung wird beispielsweise durch eine Einrichtung nach der CH-A 580 696 erreicht. Allerdings geschieht dort der Schützenantrieb auf elektro-magnetischem Wege. Über diesen Schützenantrieb wird ein Kurbel-Pleuel-Gelenkgestänge betätigt, durch welches dem Schützenschlager eine beschleunigte Bewegung erteilt wird. Dieser ungefederte Webschützenantrieb erfüllt im wesentlichen die Erwartungen, jedoch hat sich in der Praxis gezeigt, dass seine Anwendbarkeit begrenzt ist. Dies insbesondere deshalb, weil der für den Schützenantrieb verwendete Elektromagnet schnell aufeinanderfolgenden Schusseintragungen nicht zu folgen vermag. Zudem ist auch diese durch diese Einrichtung erreichte Beschleunigungskurve noch nicht ideal.Such acceleration is achieved, for example, by a device according to CH-A 580 696. However, the shooter drive is done there by electromagnetic means. A crank-connecting rod linkage is actuated via this shooter drive, by means of which the shooter hit is given an accelerated movement. This unsprung weaver drive essentially meets expectations, but practice has shown that its applicability is limited. This is particularly so because the electromagnet used for the rifle drive is not able to follow shot entries in quick succession. In addition, this acceleration curve achieved by this device is also not yet ideal.
Aufgabe der vorliegenden Erfindung ist, eine ungefederte, zwangsläufige Beschleunigung des Schützenschlägers zu optimieren.The object of the present invention is to optimize an unsprung, inevitable acceleration of the rifle club.
Zur Lösung dieser Aufgabe. Wird die Vorrichtung gemäß Anspruch 1 angegeben.To solve this task. If the device is specified according to
Hierdurch kann die Bewegung des Abrollschuhs und damit auch die Schlagbewegung des Schützenschlägers beeinflusst werden, so dass eine Annäherung der tatsächlichen Beschleunigungskurve an eine gewünschte Idealkurve erreicht wird. Wird beispielsweise die Lagerstelle des Sperrhebels am Support gegenüber der Kopplungsstelle am Abrollschuh in Ausgangsstellung des Schützenschlägers höher angesetzt, so vollzieht der Abrollschuh bei einer Schlagbewegung eine etwas kreisende Bewegung, wodurch der Abrollschuh nach aussen gezogen wird. Hierdurch findet ein geringfügiger Versatz der Längsachse des Schützenschlägers statt, wodurch die Abweichung der Beschleunigung von einer gewünschten Idealkurve weitgehend aufgehoben wird.As a result, the movement of the roller skate and thus also the striking movement of the marksman can be influenced, so that the actual acceleration curve approximates to a desired ideal curve. If, for example, the bearing position of the locking lever on the support is set higher than the coupling point on the roller skate in the starting position of the rifle racket, the roller skate executes a somewhat circular movement during a striking movement, as a result of which the roller skate is pulled outwards. This results in a slight offset of the longitudinal axis of the rifle club, which causes the deviation in the acceleration is largely canceled by a desired ideal curve.
Eine weitere Verbesserung der Einrichtung ist darin zu sehen, dass das Zugmittel mit einem Schlagarm verbunden ist, dessen Bewegung von einem Puffer und einer Begrenzungsvorrichtung begrenzt wird. Der Schlagarm besitzt ein ansich bekanntes Auflaufkurvenstück, welches von einer Schlagrolle an einem Unterwellenrad überrollbar ist. Durch diese beidseitige Begrenzung des Schlagarmes wird ein Nachfedern des Schlagarmes in seinen jeweiligen Endlagen vermieden, so dass die Webmaschine ruhiger betrieben werden kann.A further improvement of the device can be seen in the fact that the traction means is connected to an impact arm, the movement of which is limited by a buffer and a limiting device. The beater arm has a per se known run-up curve piece which can be rolled over by a beater roller on a sub-shaft wheel. This bilateral limitation of the beater arm prevents the beater arm from springing back in its respective end positions, so that the weaving machine can be operated more smoothly.
Die Erfindung ist in der Zeichnung in einem Ausführungsbeispiel dargestellt und wird nachfolgende beschrieben. Es zeigen:
Figur 1- eine Seitenansicht eines erfindungsgemässen Webschützenantriebes,
- Figur 2
- eine Seitenansicht der Kraftquelle und die Uebertragungsglieder zur Uebertragung der Kraft auf den Webschützenantrieb nach
Figur 1, - Figur 3
- ein Diagramm mit zwei Kurven, welche die Schützenschussbeschleunigung über der Bewegung der Kurbel des Webschützenantriebes zeigt,
Figur 4- eine schematische Darstellung der Erzeugung der Schützenschussbeschleunigung und
- Figur 5
- einen schematischen Vergleich der Krafteinsparung zwischen einem Webschützenantrieb mit einer kontinuierlich zunehmenden Kraft und einem Webschützenantieb mit einer plötzlich aufzuwendenden Kraft.
- Figure 1
- 2 shows a side view of a weaving machine drive according to the invention,
- Figure 2
- 2 shows a side view of the power source and the transmission elements for transmitting the force to the shooter drive according to FIG. 1,
- Figure 3
- 2 shows a diagram with two curves, which shows the rifle shot acceleration over the movement of the crank of the rifle drive,
- Figure 4
- is a schematic representation of the generation of the rifle shot acceleration and
- Figure 5
- a schematic comparison of the power saving between a shooter drive with a continuously increasing force and a shooter drive with a force suddenly to be applied.
Der in Figur 1 und 2 dargestellte Webschützenantrieb ist beispielsweise auf der rechten Webmaschinenseite angeordnet. An einem rotierenden Unterwellenrad h der Webmaschine ist eine Schlagrolle f befestigt. Mit d ist ein Schlagarm bezeichnet, mit welchem ein Auflaufkurvenstück e verbunden ist.The shooter drive shown in FIGS. 1 and 2 is arranged, for example, on the right side of the weaving machine. A striking roller f is attached to a rotating sub-shaft wheel h of the weaving machine. D is a striking arm, to which a run-up curve piece e is connected.
An einem Schützenschläger i ist ein aus einer Kurbel a und einem Pleuel b gebildetes Gelenkgestänge angelenkt. An der Kurbel a ist ein kreissegmentartiger Teil c befestigt, über den sich ein unelastisches, flexibles Zugmittel g, z.B. ein Stahldrahtseil, legt. Das Zugmittel g ist an seinem einen Ende mit einem Zugmittel-Haltekloben k am kreissegmentartigen Teil c und an seinem anderen Ende mit einem Zugmittel Haltekloben l am Schlagarm d befestigt.An articulated linkage formed from a crank a and a connecting rod b is articulated on a rifle club i. On the crank a is a circular segment-like part c attached over which an inelastic, flexible traction device g, for example a steel wire rope, is placed. The traction means g is attached at one end with a traction means holding block k to the circular segment-like part c and at its other end with a traction means holding block l on the striking arm d.
Mit x und y sind Gelenke des Gelenkgestänges a, b bezeichnet.With x and y joints of the linkage a, b are designated.
Der Schützenschläger i ist an seinem unteren Ende mit einem Abrollschuh m verbunden, dessen Krümmungsradius im Zentrum des Berührungspunktes des Schützen mit dem Picker, z.B. zirka 800 mm betragen kann. Der Abrollschuh m wird mittels zweier Sperrhebel n an einem horizontalen Ausweichen gehindert. Einerseits sind die Hebel n an einem Support m1 ortsfest, jedoch drehbar gelagert und andererseits mit dem dem einen Ende n1 des Abrollschuhs m beweglich gekuppelt.The rifle racket i is connected at its lower end to a roller shoe m, the radius of curvature of which is in the center of the point of contact of the rifle with the picker, e.g. can be approximately 800 mm. The roller skate m is prevented from evading horizontally by means of two locking levers n. On the one hand, the levers n are fixed in place on a support m1, but are rotatably mounted and, on the other hand, are movably coupled to the one end n1 of the rolling shoe m.
Wird nun die Lagerstelle der Sperrhebel n am Support m1 gegenüber der in Ausgangsstellung sich befindenden Kopplungsstelle n1 am Abrollschuh m entsprechend höher gesetzt, wird der Abrollschuh m durch die kreisende Bewegung am Anfang der Schlagbewegung etwas nach aussen - in Fig. 1 nach rechts - gesteuert, wodurch die Abweichung der Beschleunigung, siehe die gestrichelte Kurve in Fig. 3, gegenüber der ausgezogenen Kurve mit konstanter Beschleunigungskraft weitgehend aufgehoben wird.If the bearing position of the locking levers n on the support m1 is set correspondingly higher than the coupling point n1 on the rolling shoe m, which is in the starting position, the rolling shoe m is controlled somewhat outwards by the circular movement at the beginning of the striking movement - to the right in FIG. 1, whereby the deviation of the acceleration, see the dashed curve in FIG. 3, is largely canceled out compared to the solid curve with constant acceleration force.
Die Kurbel a in Fig. 1 wird durch eine Rückzugfederung q jeweils wieder in ihre Ausgangslage zurückgezogen und zugleich durch einen Niederhalteriemen r in der ausgestreckten Lage mit dem Pleuel b gehalten.The crank a in FIG. 1 is pulled back into its initial position by a return spring q and at the same time is held in the extended position with the connecting rod b by a hold-down belt r.
Der Schläger i wird durch eine nicht dargestellte Schlägeraufhaltung aufgehalten. Die Bewegungsbegrenzung des Schlagarmes d übernimmt ein Puffer t, z.B. aus Holz, der seinerseits mit einer Lasche u mit dem Webmaschinengestell verbunden ist. Mit s ist eine Begrenzungsvorrichtung bezeichnet, welche die Rückzugbewegung des Schlagarmes d in die Ausgangslage begrenzt.The racket i is stopped by a racket not shown. A buffer t, for example made of wood, limits the movement of the beater arm d which in turn is connected to the weaving machine frame with a tab u. S denotes a limiting device which limits the retraction movement of the striking arm d to the starting position.
Die Rückzugbewegung des Schlagarmes d übernimmt eine Zugfeder w,die am Schlagarm d beim Punkt w1 angelenkt ist.The return movement of the striking arm d takes over a tension spring w, which is articulated on the striking arm d at point w1.
Fig. 3 zeigt den Bewegungsablauf für eine in Fig. 4 dargestellte gleichförmige Kurbelbewegung eines Gestänges aus einer Kurbel a und einem Pleuel b mit der daraus abgeleiteten gleichförmig beschleunigten Bewegung des Schützenschlägers i längs der Linie A-E. Die gestrichelte Kurve zeigt die Schützenschussbeschleunigung bei gleichförmiger Bewegung und die ausgezogene Kurve die Schützenschussbeschleunigung mit konstanter Beschleunigungskraft. Die mit dem beschriebenen Webschützenantrieb erreichbare Schützenschussbeschleunigung kann weitgehend der idealen, ausgezogenen Beschleunigungskurve angenähert werden.FIG. 3 shows the movement sequence for a uniform crank movement shown in FIG. 4 of a linkage composed of a crank a and a connecting rod b with the uniformly accelerated movement of the rifle club i derived therefrom along the line A-E. The dashed curve shows the rifle shot acceleration with uniform movement and the solid curve shows the rifle shot acceleration with constant acceleration force. The rifle shot acceleration achievable with the described shooter drive can largely be approximated to the ideal, extended acceleration curve.
Fig. 5 zeigt den Energieaufwand beim beschriebenen Webschützenantrieb (gestrichelte Fläche) und bei einem Webschützenantrieb mit einer plötzlich aufzuwendenden Kraft. In letzterem Fall ist diese Kraft BK über den ganzen Schlagweg SW aufzubringen, während beim beschriebenen Webschützenantrieb eine grössere Endkraft KK bei geringerem Energieaufwand erreicht werden kann.Fig. 5 shows the energy expenditure in the described shooter drive (dashed area) and in a shooter drive with a force suddenly to be applied. In the latter case, this force BK is to be applied over the entire stroke SW, while with the described shooter drive a larger final force KK can be achieved with less energy consumption.
Die Senkrechte KK entspricht dem effektiven Kraftanstieg bei 45 Grad Kurbeldrehung, siehe Fig. 4. Gegenüber der Senkrechten BK beträgt KK das 1,4-fache von BK, wobei eine 1,4-fache Schützengeschwindigkeit erreicht wird, was eine Steigerung der Webleistung zur Folge hat.The vertical KK corresponds to the effective force increase at 45 degrees crank rotation, see FIG. 4. Compared to the vertical BK, the KK is 1.4 times the BK, with a 1.4 times the shooter speed, which results in an increase in weaving performance Has.
Das kontinuierliche, von Null in A bis Z erfolgende Ansteigen des Kraftaufwandes ist eine Folge des rechtwinklig zur Schussrichtung verlaufenden Antriebskraft in gestrichelter Pfeilrichtung des Schlagarmes d, siehe Fig. 2, und der dadurch erreichten Aufteilung des Schlagkraftaufwandes in Seitenkräfte.The continuous increase from zero to AZ of the effort is a consequence of the driving force running at right angles to the firing direction in the dashed arrow direction of the striking arm d, see FIG. 2, and the division of the striking force into lateral forces thereby achieved.
Witterung- z.B. Luftfeuchtigkeitsänderungen können dem beschriebenen ungefederten Webschützenschlag nicht beeinflussen. Durch Wahl des Längenverhältnisses zwischen der Kurbel a und dem Pleuel b und durch die Art, wie die Kurbel a betätigt und in welcher Hebellänge sie angegriffen wird, können die Kraftverhältnisse beeinflusst werden.Weather - e.g. Humidity changes cannot influence the unsprung shuttle shoot described. The force ratios can be influenced by the choice of the length ratio between the crank a and the connecting rod b and by the way in which the crank a is actuated and in which lever length it is attacked.
Claims (2)
- Device for the shuttle weft dispatch on a weaving machine provided with a shuttle picker, in which the shuttle picker (i) is connected, on the one hand, by way of an articulated connecting rod (b), a crank (a), a tensioning means (g) and a picking arm (d), with a power source formed as an under-shaft wheel (h) and, on the other hand, is operatively connected with a roll-off shoe (m) arranged between two catch levers (n), with the two catch levers (n) being mounted, in each case, with the one end via a coupling point (n1) on the roll-off shoe (m) and with the other end in a fixed manner on a support (m1), characterised in that the two catch levers (n) are arranged and mounted on the support (m1) in such a way that in the starting position and viewed in the direction of the shuttle picker (i) the fixed mounting on the support (m1) is vertically offset in relation to the coupling point (n1) provided on the roll-off shoe (m).
- Device according to claim 1, characterised in that the picking arm (d) is provided in a manner known per se with a run-on curved piece (e) over which, for the transmission of movement to the picking arm (d), there can roll a picking roller (f) which is operatively connected with the under-shaft wheel (h), the movement of the picking arm (d) being limited by a limiting arrangement (s) and also by means of a buffer (t).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1565/85 | 1985-04-13 | ||
| CH156585A CH679048A5 (en) | 1985-04-13 | 1985-04-13 | Shuttle throw prodn. mechanism for mechanical looms |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0198148A2 EP0198148A2 (en) | 1986-10-22 |
| EP0198148A3 EP0198148A3 (en) | 1988-08-31 |
| EP0198148B1 true EP0198148B1 (en) | 1992-02-05 |
Family
ID=4213396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19860100004 Expired - Lifetime EP0198148B1 (en) | 1985-04-13 | 1986-01-02 | Shuttle insertion device for a loom |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0198148B1 (en) |
| CH (1) | CH679048A5 (en) |
| DE (1) | DE3683788D1 (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT74443B (en) * | 1915-10-19 | 1918-07-25 | Webstuhl & Webereimaschinen Fa | Beating device for looms. |
| GB226341A (en) * | 1923-11-12 | 1924-12-24 | Vincent Cass | Improvements in picking motions for looms for weaving |
| CH580696A5 (en) * | 1974-02-28 | 1976-10-15 | Mueller Haas Albert | Mechanical loom, moving centre section of sley only - together with electromagnetically operated picking, greatly reduces wear |
-
1985
- 1985-04-13 CH CH156585A patent/CH679048A5/en not_active IP Right Cessation
-
1986
- 1986-01-02 EP EP19860100004 patent/EP0198148B1/en not_active Expired - Lifetime
- 1986-01-02 DE DE8686100004T patent/DE3683788D1/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| EP0198148A3 (en) | 1988-08-31 |
| CH679048A5 (en) | 1991-12-13 |
| EP0198148A2 (en) | 1986-10-22 |
| DE3683788D1 (en) | 1992-03-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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