US3463201A - Loom protector mechanism - Google Patents

Loom protector mechanism Download PDF

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Publication number
US3463201A
US3463201A US697208A US3463201DA US3463201A US 3463201 A US3463201 A US 3463201A US 697208 A US697208 A US 697208A US 3463201D A US3463201D A US 3463201DA US 3463201 A US3463201 A US 3463201A
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United States
Prior art keywords
loom
lever
shuttle
pivotable
dagger
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
Application number
US697208A
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English (en)
Inventor
Gordon S Robinson
Robert W Anderson Jr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Draper Corp
Boeing North American Inc
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North American Rockwell Corp
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Assigned to DRAPER CORPORATION, reassignment DRAPER CORPORATION, CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). EFFECTIVE APRIL 1,1982 Assignors: DELTA ACQUISITION CORPORATION,
Assigned to DELTA ACQUISTION CORPORATION reassignment DELTA ACQUISTION CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: ROCKWELL INTERNATIONAL CORPORATION
Assigned to CITICORP INDUSTRIAL CREDIT INC. reassignment CITICORP INDUSTRIAL CREDIT INC. SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: DRAPER CORPORATION F/K/A DELTA ACQUISITION CORPORATION
Assigned to STANCHART BUSINESS CREDIT, A CORP. OF CA. reassignment STANCHART BUSINESS CREDIT, A CORP. OF CA. SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: DRAPER CORPORATION
Anticipated expiration legal-status Critical
Assigned to DRAPER CORPORATION, A CORP. OF GEORGIA reassignment DRAPER CORPORATION, A CORP. OF GEORGIA RELEASED BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: CITICORP INDUSTRIAL CREDIT, INC.
Expired - Lifetime legal-status Critical Current

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    • 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
    • D03D49/58—Shuttle guards

Definitions

  • the invention relates to a protector mechanism for looms of the fiy-shuttle type and in particular to an improved means for dissipating the forces created at socalled loom bang-off.
  • a known form of protector mechanism in common use for fly-shuttle looms is that of the protector rod type having dagger fingers at each end thereof .which are adapted to engage abutments or so-called steel pieces carried in slidable frogs.
  • the protector rod cooperates with spring biased fingers which rotate the protector rod, when the shuttle is properly boxed, a sufiicient degree so as to lift the dagger fingers to clear the steel pieces.
  • the spring biased fingers fail to rotate the protector rod and the dagger fingers are caused to engage the steel pieces which brings the loom to an abrupt stop.
  • the loom protector mechanism provides an improved and novel means for dissipating the forces created at loom bang-off by taking up the initial forces through the braking portion of the loom motor and the remaining through the combination of said motor and engagement of the dagger fingers with pivotable abutments carried in the frogs.
  • the loom protector mechanism of the present invention includes pivotable lever members which function in cooperation with the shuttle box binders to sense the presence and absence of a shuttle. These levers are mechanically linked to pawl members which are caused to pivot and avoid contact with pivotable bell crank levers when a shuttle is properly received into the shuttle box. In the event of an improperly boxed or late shuttle the pawls are not moved in time to avoid contact with the bell crank levers causing the latter to pivot.
  • One end of the bell crank lever on the drive side of the loom is mechanically linked to the loom motor and the other end to a crank lever forming a part of a pivotable abutment carried in a slida-ble frog.
  • the linkage to the motor is actuated and releases the latter to braking position.
  • Further movement of the bell crank lever actuates the linkage to the pivotable abutment and elevates the latter to a position to be engaged by the dagger finger.
  • FIG. 1 is a perspective view of a portion of the righthand side of a loom showing the mechanism according to the invention applied thereto;
  • FIG. 2 is a view in side elevation of a portion of the left-hand side of the loom showing the means for elevating the pivotable abutment on that side of the loom to a position for engaging the dagger finger;
  • FIG. 3 is a view similar to that of FIG. 2 but showing the means for elevating the pivotable abutment on the right-hand side of the loom;
  • FIG. 4 is a view in side elevation of a portion of the elements in FIG. 3 showing the position of the pivotable abutment during normal loom operation;
  • FIG. 5 is a view similar to that of FIG. 2 and partially in section showing the position of the various elements, of the invention when the shuttle is properly boxed;
  • FIG. 6 is a perspective view showing the manner in which the pawls are interconnected and caused to function in unison.
  • FIG. 1 shows a part of the right-hand loom frame at 10 and in FIG. 5 a part of the left-hand loom frame at 11.
  • a lay beam 12 is shown in FIG. 6 which is adapted to extend across the Width of the loom and is supported for swinging movement by right and left-hand swords that are identified by numerals 13 and 14, respectively.
  • FIG. 6 the looms rocker shaft is shown at 15 and serves to support the swords in a known manner.
  • the ends of the rocker shaft 15 are journaled in aligned bearing members (not shown) which are assembled in the lower portion of each loom frame.
  • FIG. 1 the loom motor which is of the clutch-brake type is identified by numeral 16. This motor is fixedly attached to a motor stand 17 which by any suitable means (not shown) is assembled to the loom frame 10.
  • the loom motor 16 is provided with the usual operating lever 18 and as is known by those conversant in the art it is pivoted in one direction to engage the driving clutch thereof and when released from that position a biasing force pivots it in the opposite direction for engagement with the brake portion.
  • the loom protector mechanism of the present invention functions in cooperation with a quick release apparatus which forms a part of the loom motors operating lever 18 and is shown and fully described in US. patent application 589,285, filed Oct. 25, 1966, now abandoned.
  • the release latch and lever which form a part of the quick release mechanism are identified by numerals 19 and 20, respectively.
  • the lay beam 12 includes shuttle boxes on the upper end surfaces thereof which are adapted to receive a shuttle 21 (FIG. 5) as it is picked back and forth across said lay.
  • the shuttle boxes being disposed in opposed relation are more or less of the same basic design and as shown by the left-hand box in FIG. 5 they include such elements as a lay end 22, front box plate 23, back box plate 24 and a binder 25.
  • a part of the right-hand shuttle box is shown in FIG. 1 and the similar components thereof are identified by corresponding numerals with the addition of a prime.
  • the frogs are of the slidable type and are assembled in a known manner on each loom frame and 11.
  • FIG. 1 the right-hand frog is shown at 26 and in FIG. 5 the left-hand at 27. Both frogs function in unison during the performance of their intended function and being basically alike it is only necessary here to identify and describe one of said frogs. Attention is therefore directed to the right-hand frog 26.
  • This frog is provided with a pivotable abutment or socalled steel piece 28 (FIGS. 1, 3 and 4) and it is positioned within a pocket 29 formed on the upper surface and intermediate the ends of said frog.
  • a crank lever 30 extends through and beyond each side of the pivotable abutment 28 and serves to support said abutment within the pocket 29. Those portions of the crank lever immediately adjacent to the pivotable abutment are journaledin aligned apertures provided in the sides of the pocket 29.
  • crank lever 30 extends outwardly beyond the side of the frog 26 and is directed at an angle normal to the longitudinal extent of said lever thereby forming a crank element which in a manner to be described provides the means for pivoting the pivotable abutment to dagger finger engaging position.
  • the dagger finger is depicted by numeral 31 and being of the fixed type it assembles to the sword immediately below the lay 12 by means of bolts 32 (one only shown in FIG. 3).
  • the dagger finger extends forwardly from its point of attachment to the sword and is adapted to move with the latter above and in close proximity with the upper central surface of the frog.
  • the sensing means for determining the presence or absence of a shuttle in the shuttle box includes a double armed lever generally indicated by numeral 33 which is pivotably mounted intermediate its ends to a support bracket 34 that is assembled to the back of the lay 12 by means of cap screws 35 (one only shown in FIGS. 1 and 3).
  • FIGS. 2 and 4 show a portion of the left-hand shuttle box along with sensing elements of like configuration and which function in a like manner.
  • Lever 33 has an upper arm 36 in which there is assembled a generally horizontally disposed adjustable bolt 37.
  • This bolt is adjustable longitudinally in arm 36 by means of a lock nut 38 and the head thereof is positioned for engagement with the rear side of the binder 25'.
  • a coil spring 39 provides a biasing force for continually urging bolt 37 intocontact with the binder 25' and is assembled on the shank portion of said bolt intermediate the upper end of support bracket 34 and the rear side of the upper arm 36.
  • the lower arm of lever 33 is identified by numeral 40 and has one end of an adjustable linkage rod 41 pivotably connected thereto.
  • the opposite end of this linkage rod 41 defines an elongated opening 42 (FIG. 3) and by means of a bolt 43 said end is pivotably connected to a pivotable pawl generally indicated by numeral 44.
  • This pivotable pawl includes a hub portion 45, an integrally formed actuating lever 46 to which the linkage rod 41 is connected and a rearwardly extending finger 47.
  • the left-hand pivotable pawl is identified by numerals similar to the right-hand but with the addition of primes and both pawls are fixed to the ends of a common sup- 4 port rod 48 (FIGS. 1 and 6).
  • the support rod 48 traverses the width of the loom and is supported for oscillating movement in suitable bearing members fixed to the underside of the lay such as 49 and 50 shown in FIG. 6. This support rod is also supported adjacent its ends in aligned apertures (not shown) provided in the base portions of the dagger fingers 31 and 31'.
  • both pivotable pawls 44 and 44 are caused to pivot in unison by the pivoting motion of either the right or lefthand double armed levers 33 and 33. Only one of the double armed levers 33 or 33' need be pivoted to affect movement of both the pawls.
  • the linkage rods 41 and 41' which include elongated openings 42 and 42 on the ends which are pivotably connected to the actuating lever of the pawls. These openings permit bolts 43 and 43 forming the pivotable connections to move within the limits thereof before the affected double armed lever can effect movement of its respective pawl.
  • the right-hand lever is of the bell crank type and is identified generally by numeral 51 (FIGS. 1 and 3). This lever is pivotably supported intermediate its ends to a mounting bracket 52 by means of a bolt 53 and said mounting bracket attaches to the side of the loom frame 10 by means of bolts 54.
  • Lever 51 includes a lower arm 55 and an upper arm 56 the top portion of which is bifurcated with one stem forming an abutment 57 and the other a means for interconnecting the linkage to the motors quick release mechanism that will be more fully described hereinafter.
  • the lower arm 55 of the lever 51 has one end of a coil spring 58 of the helical extension type attached thereto as at 59 and the opposite end is connected to the crank lever 30 as at 60.
  • a coil spring 61 continually urges lever 51 into contact with an adjustable stop screw 62 which assembles in a protruding lug 63 that forms a part of the mounting bracket 52.
  • One end of this spring is attached to the inner end of a fixed stud 64 carried by the lever 51 and the opposite end is attached to a spring bracket 65 which is fixed to said mounting bracket by means of the stop screw 62.
  • lever 51 on the right-hand side of the loom which functions in a similar manner to lever 51 on the right-hand side being basically the same except for a linkage connection to the loom motor is identified, along with its cooperating components, by corresponding numerals with the addition of primes.
  • the linkage to the motors quick release mechanism includes a linkage rod 66 one end of which is pivotably connected to lever 51 as at 67.
  • the opposite end of this linkage rod 66 is pivotably attached to one end of a horizontally disposed arm 68.
  • the other end of arm 68 is fixedly attached to the upper end of a shaft '69 journaled in a cylindrical housing 70 having opposed bolting flanges 71 and 72 extending laterally therefrom.
  • Housing 70 assembles to the loom frame 10 by any suitable means such as bolts 73 (the head of one only shown in FIG. 1).
  • the lower end of shaft 69 is provided with a fixed collar 74 having an integrally formed and laterally extending lug 75 extending therefrom to which one end of a release rod 76 is pivotably attached.
  • the lay beam is swung to and fro in a conventional and well known manner as the shuttle is caused to travel to and from the shuttle boxes forming the ends of said lay.
  • Levers 51 and 51' are pivoted simultaneously and the lower arms 55 and 55' thereof pivot in a downwardly direction and through their connections With crank levers 30 and 30' the pivotable abutments 28 and 28 are pivoted to a position for engagement with their respective dagger fingers 31 and 31'. Just before the lay has traveled far enough to enable the dagger fingers to engage the pivotable abutments, lever 51 will have moved linkage rod 66 a distance sufiicient to release the loom motor to braking position.
  • loom protector mechanism comprismg:
  • sensing means including a lever member and a cooperating pivotable pawl, said lever member being pivotably attached to said lay and having one end thereof in contact with said binder and the opposite end linked to said pawl, and
  • pivotable pawls are caused to move in unison and include a support rod disposed below said lay which extends longitudinally therewith.
  • said further means comprises a pivotable bell crank lever having control linkages connected to each end thereof, one of which is mechanically linked to said motor the other to said crank lever.
  • pivotable bell crank lever includes an integrally formed abutment adapted to be engaged by said pawl to pivot said bell crank lever to a position whereby said control linkages are activated to release said motor to braking position and elevate said pivotable abutment to dagger engaging position.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Transmission Devices (AREA)
US697208A 1968-01-11 1968-01-11 Loom protector mechanism Expired - Lifetime US3463201A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US69720868A 1968-01-11 1968-01-11

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US3463201A true US3463201A (en) 1969-08-26

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US697208A Expired - Lifetime US3463201A (en) 1968-01-11 1968-01-11 Loom protector mechanism

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US (1) US3463201A (US08124317-20120228-C00060.png)
JP (1) JPS4832985B1 (US08124317-20120228-C00060.png)
BE (1) BE726773A (US08124317-20120228-C00060.png)
CH (1) CH485894A (US08124317-20120228-C00060.png)
DE (1) DE1808792A1 (US08124317-20120228-C00060.png)
FR (1) FR1596237A (US08124317-20120228-C00060.png)
GB (1) GB1238706A (US08124317-20120228-C00060.png)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3746054A (en) * 1971-04-22 1973-07-17 E Turner Shuttle boxing and protection stopping means for fly shuttle looms
EP0133269A2 (en) * 1983-07-29 1985-02-20 The Tandem Group Inc. Locking mechanism for an office panel system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53125175U (US08124317-20120228-C00060.png) * 1977-03-15 1978-10-04

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US847653A (en) * 1906-09-26 1907-03-19 Draper Co Protector mechanism for looms.
FR659642A (fr) * 1928-08-29 1929-07-01 Diederichs Atel Veille-navette à butoir commandé et tringle fixe
US3404709A (en) * 1967-01-09 1968-10-08 Marshall John D Loom protector mechanism

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US847653A (en) * 1906-09-26 1907-03-19 Draper Co Protector mechanism for looms.
FR659642A (fr) * 1928-08-29 1929-07-01 Diederichs Atel Veille-navette à butoir commandé et tringle fixe
US3404709A (en) * 1967-01-09 1968-10-08 Marshall John D Loom protector mechanism

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3746054A (en) * 1971-04-22 1973-07-17 E Turner Shuttle boxing and protection stopping means for fly shuttle looms
EP0133269A2 (en) * 1983-07-29 1985-02-20 The Tandem Group Inc. Locking mechanism for an office panel system
EP0133269A3 (en) * 1983-07-29 1987-01-07 The Tandem Group Inc. Locking mechanism for an office panel system

Also Published As

Publication number Publication date
CH485894A (de) 1970-02-15
FR1596237A (US08124317-20120228-C00060.png) 1970-06-15
GB1238706A (US08124317-20120228-C00060.png) 1971-07-07
DE1808792A1 (de) 1969-08-07
JPS4832985B1 (US08124317-20120228-C00060.png) 1973-10-09
BE726773A (US08124317-20120228-C00060.png) 1969-06-16

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AS Assignment

Owner name: DELTA ACQUISTION CORPORATION; HORNADAY RD., GREENS

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:ROCKWELL INTERNATIONAL CORPORATION;REEL/FRAME:004113/0020

Effective date: 19820321

Owner name: DRAPER CORPORATION,

Free format text: CHANGE OF NAME;ASSIGNOR:DELTA ACQUISITION CORPORATION,;REEL/FRAME:004097/0735

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Free format text: SECURITY INTEREST;ASSIGNOR:DRAPER CORPORATION A CORP. OF GA F/K/A DELTA ACQUISITION CORPORATION;REEL/FRAME:004070/0533

Effective date: 19821021

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Owner name: STANCHART BUSINESS CREDIT, 200 GALLERIA PARKWAY, N

Free format text: SECURITY INTEREST;ASSIGNOR:DRAPER CORPORATION;REEL/FRAME:004539/0198

Effective date: 19860328

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Owner name: DRAPER CORPORATION, GREENSBORO, NORTH CAROLINA A C

Free format text: RELEASED BY SECURED PARTY;ASSIGNOR:CITICORP INDUSTRIAL CREDIT, INC.;REEL/FRAME:004664/0583

Effective date: 19860331