US3417790A - Heddle frames - Google Patents

Heddle frames Download PDF

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Publication number
US3417790A
US3417790A US585858A US58585866A US3417790A US 3417790 A US3417790 A US 3417790A US 585858 A US585858 A US 585858A US 58585866 A US58585866 A US 58585866A US 3417790 A US3417790 A US 3417790A
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United States
Prior art keywords
members
longitudinal
anchor
crossbar
crossbars
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
US585858A
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English (en)
Inventor
Pfarrwaller Erwin
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.)
Sulzer AG
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Sulzer AG
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Filing date
Publication date
Application filed by Sulzer AG filed Critical Sulzer AG
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Publication of US3417790A publication Critical patent/US3417790A/en
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    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C9/00—Healds; Heald frames
    • D03C9/06—Heald frames
    • D03C9/0608—Construction of frame parts
    • D03C9/0658—Intermediate supports or their connection to other frame parts

Definitions

  • a heddle frame for looms including one or more crossbars for connecting together the upper and lower horizontal members of the heddle frame, these crossbars being adjustably xable at various locations lengthwise of the frame.
  • the longitudinal members are hollow, taper in cross-section toward each other, and have in their adjacent edges each a slot through which fastening means may extend from one end of the cross-bar into the interior of the longitudinal member and into a movable anchoring member disposed inside the longitudinal member.
  • the anchoring member is inside the hollow longitudinal member and is tapered to match the tapering shape of the inside cross-section of the longitudinal member.
  • the crossbar is then aiixed to the remainder of the heddle frame, upon tightening of the fastening means, by frictional engagement between the ends of the cross bar and the exterior of the longitudinal members, and by frictional engagement between the anchor members and the interior of the longitudinal members.
  • the present invention relates to heddle frames for looms, and provides a heddle frame in which one or more intermediate vertical crossbars connecting the upper and lower longitudinal members yof the frame are readily adjusted in position lengthwise of the frame, i.e. crosswise of the loom.
  • intermediate vertical crossbars have been xed to solid longitudinal members, for example by means of screws, or have been otherwise attached in xed position to the heddle frame.
  • the invention provides a heddle frame comprising hollow longitudinal members having slots in their facing surfaces and interconnected by end crossbars, and at least one intermediate crossbar which has an end member secured to each end, each end member being connected by connecting or fastening means extending through the slot in one of the longitudinal members with an anchor member mounted in the hollow interior of the longitudinal member for longitudinal movement therein.
  • the intermediate crossbar can be moved longitudinally within the limits of the length of the slots in which it is secured. It can therefore be moved longitudinally into a position in which it lies in a gap or lane between spaced warp threads.
  • gaps or lanes between warp threads are frequently necessary for other reasons, and by positioning a crossbar accurately in such a gap it is possible to avoid the warp threads rubbing against the crossbar.
  • each slot is provided, for example at one end thereof, with a widened portion which is large enough for the anchor member to pass through, into and out of the interior of the longitudinal member.
  • a crossbar can be moved along until the anchor members inside the longitudinal members are opposite the widened portions of the slots so that the crossbar can be removed from the longitudinal members.
  • detachable fastening means between the crossbar and anchors this can be effected by completely detaching the crossbar from the upper anchor member, which can then be removed through the widened portion in the slot of the upper longitudinal member.
  • the lower anchor member can then be lifted out through the widened portion in the slot of the lower longitudinal member by means of the crossbar to which it is still attached.
  • the longitudinal members taper toward each other in cross-section down to their respective slots, the surfaces of the longitudinal members on each side of the slot being convergent, as by being curved or sloping, and the end pieces or ends of the movable crossbars have corresponding divergent walls arranged to straddle the longitudinal members adjacent their slots and to press the convergent surfaces towards one another and onto the anchor member.
  • the fastening means are such as to permit drawing together of the anchor members and ends of the movable crossbars, the Whole area of the joint between the longitudinal member and the crossbar is strengthened.
  • the fastening means comprises screws having lateral projections, such as nuts or heads, and the ends ⁇ of the cr-ossbars have lateral recesses in which the fixing screws are received with the lateral. projections overlying the ends of the crossbars.
  • the crossbar can be separated from or connected to the anchor members at any position along the slots by sliding the recesses in the ends of the crossbars under the heads, and removal of the anchor members from the longitudinal members is not necessary.
  • At least one of the longitudinal members may have a reinforcing member in its hollow interior adjacent the slot therein to act as a guide for an anchor member between the reinforcing member and the slot.
  • a reinforcing member will stitfen the longitudinal member and, in the case of the lower longitudinal member, will prevent the anchor member dropping to the bottom of the hollow interior of the lower longitudinal member when the anchor member is disconnected from a crossbar.
  • FIG. l is a diagrammatic general view of a heddle frame according to the invention.
  • FIG. 2 is an elevational View showing part of the heddle frame of FIG. l to a larger scale
  • FIG. 3 is a sectional view corresponding to the elevational view of FIG. 2;
  • FIG. 4 is a sectional view taken on the line IV--IV in FIG. 2 at a further enlarged scale
  • FIG. 5 is a sectional view taken on the line V-V in FIG. 2;
  • FIG. 6 is a sectional view taken on the line VI-VI in FIG. 3;
  • FIG. 7 is a sectional view corresponding to FIG. 6 but showing a small modication.
  • the heddle frame 10 comprises a lower longitudinal member 11 and an upper longitudinal member 12 which are rigidly connected together by end crossbars 13. Brackets 24 carrying carrier bars 25 are mounted opposite each other on the longitudinal members 11 and 12. Removable, sliding intermediate cross- 'bars 26 are inserted between the upper and lower longitudinal members at intervals along the length of the heddle frame.
  • the joints in the heddle frame 10 are subject to high stress during use, being continually exposed to shocks and jarring.
  • An end piece or member 31 (FIGS. 2 to 5) is attached crosswise, e.g. by soldering, to each end of each intermediate crossbar 26.
  • the adjacent, inner edges 32 and 33 of the members 11 and 12 are rounded, as indicated for the member 11 at 34 in FIG. 4, and the parts 35 of the crossbar end pieces 31 match the rounded portions 34 of the longitudinal members and rest on them.
  • the interior 36 of each longitudinal member contains a movable anchor block 38 with threaded 'bores 37. Fixing screws 41 passing through holes in the end pieces or members 31 and through a slot 39 ⁇ in each of the longitudinal members 11 and 12 are screwed into the anchor blocks 38.
  • the longitudinal members 11 and 12 taper toward each other in crosssection and are straddled by the concavely grooved or reentrantly shaped end portions or end pieces 31 of the movable crossbars 26, all as shown in FIG. 4.
  • Each slot 39 in the members 11 and 12 terminates eg. on the left as shown in FIG. 2, in an opening or widened portion 42 large enough to allow the anchor block 3S to be inserted into or removed from the interior 36 of the longitudinal member.
  • a reinforcing member 44 extending the length of the slot 39 including the opening 42, or optionally longer, is spot-welded at points 43 inside each longitudinal member. The member 44 serves the additional purpose of holding the anchor member 38 near enough to the slot 39 to be conveniently reached, even when the anchor member is detached from the crossbar 26.
  • the heddle carrier bars need not be attached to the intermediate crossbars 26, but lie in recesses 45 in these crossbars as shown in FIG. 3. Heddles (not shown) with yarn eyes for the warp threads are mounted on the heddle carrier bars. Slight pressure on the heddle carrier bars 25 moves them slightly to the left in FIG. 3, moving them temporarily away from the intermediate crossbars so that one or more of the mounted heddles can be moved past an intermediate crossbar as may occasionally be desirable.
  • intermediate crossbars may have approximately rectangular cross-sections as in FIG. 7, in the heddle frame shown in FIGS. l to 6, the crossbars in the particular frame being described have rounded sections as in FiG. 6, i.e. approximately oval.
  • members 11 and 12 have their adjacent edges 31 and 32 formed with a chamfer or slope, in place of the convex curvature shown at 34 in FIG. 4, and the end pieces 31 of the movable crossbars 26 are then shaped to match such slope or cbamfer.
  • the anchor block 38 for the lower end of the crossbar may be loosely screwed with the screws 41 to the lower end piece 31 so as not to become separated therefrom.
  • the lower anchor block 38 thus loosely affixed to the cross'bar is then inserted into the opening 42 in the longitudinal member 11 and the anchor block 38 for the upper end of the crossbar is then inserted separately into the opening 42 in the upper longitudinal member 12.
  • the upper end piece 31 of the crossbar is screwed then loosely with screws 41 to the anchor block 38 already inserted into the upper longitudinal member.
  • the crossbar with the loosely attached anchor blocks 33 is moved to the right in FIG. 2 until it is in the desired position, and all four screws 41 are tightened.
  • the crossbar has now been fixed.
  • the end pieces 31 may be provided with a transverse slots 47, as indicated in FIG. 5, so that the screws 41 can be screwed part-way into the anchor blocks 38 and the end pieces 31 then pushed under the heads of the screws 41.
  • the adjacent inner edges 32, 33 of the longitudinal members, near the slots 39, may be at instead of convexly curved, and the portions of the crossbar end pieces 31 may be shaped accordingly.
  • the connection between the parts 31, 38 will then contribute less to reinforcing the heddle frame as a whole, but the frame will still ⁇ be rigd enough for certain weaving operations.
  • the heddle carrier bars 25 and intermediate crossbars 26 may additionally be fastened to each other.
  • the heddle carrier bars may have longitudinal slots for receiving studs provided in the recesses of the crosbars.
  • a heddle frame comprising upper and lower hollow longitudinal members of substantially at shape, end crossba-rs fastened to said members to hold the same in spaced relation in a common plane, said members having each in the edge thereof facing the other of said members a longitudinal slot of width narrower than the thickness of the longitudinal member, said frame further comprising a removable intermediate crossbar, end members of thickness greater than the width of said slots secured one to each end of said intermediate crossbar, a separate anchor member slideably disposed within each of said longitudinal members, and separate -releasable fastening means extending from each of said end members through a separate one of said slots into a separate one of said anchor members, said anchor members having a thickness greater than the width of said slots, whereby upon tightening of said fastening means said end members and anchor members are brought into frictional engagement respectively with the exterior and interior surfaces o-f said longitudinal members.
  • a heddle frame according to claim 1 wherein said longitudinal members taper in thickness toward each other adjacent said slots, wherein said end members are eoncavely grooved to straddle said longitudinal members adjacent said slots, and wherein said anchor mem- -bers are tapered at the portions thereof engaged by said fastening means, whereby each of said longitudinal members is clamped on either side of its said slot between one of said end members and one of said anchor members.
  • a heddle frame according to claim 1 including a 5 6 reenforcing member disposed within each of said longi- 2,944,571 7/ 1960 Wegwaller 139-91 tudinal members and extending lengthwise thereof 0V ⁇ e1 3,221,776 12/ 1965 Wagner 139-92 the length of said slots, said reenforcing members having clearance from said slots suflicient to accommodate said FOREIGN PATENTS anchor members While supporting said anchor members 5 in position to be reached through said slots by said fasten ing means.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Auxiliary Weaving Apparatuses, Weavers' Tools, And Shuttles (AREA)
  • Joining Of Building Structures In Genera (AREA)
US585858A 1965-10-12 1966-10-11 Heddle frames Expired - Lifetime US3417790A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1404365A CH445406A (de) 1965-10-12 1965-10-12 Webschaft

Publications (1)

Publication Number Publication Date
US3417790A true US3417790A (en) 1968-12-24

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ID=4397458

Family Applications (1)

Application Number Title Priority Date Filing Date
US585858A Expired - Lifetime US3417790A (en) 1965-10-12 1966-10-11 Heddle frames

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US (1) US3417790A (US20110009641A1-20110113-C00256.png)
AT (1) AT261504B (US20110009641A1-20110113-C00256.png)
CH (1) CH445406A (US20110009641A1-20110113-C00256.png)
GB (1) GB1090448A (US20110009641A1-20110113-C00256.png)
SE (1) SE304964B (US20110009641A1-20110113-C00256.png)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4941666A (US20110009641A1-20110113-C00256.png) * 1972-06-30 1974-04-19 Grob & Co Ag
US3948296A (en) * 1972-06-30 1976-04-06 Grob & Co. Aktiengesellschaft Frame stave for heald frame of weaving machine
US3949789A (en) * 1972-06-14 1976-04-13 Grob & Co. Aktiengesellschaft Heddle frame stave with closed T-rail
US4658864A (en) * 1985-04-24 1987-04-21 Ellison, Pioneer Division Detachable center brace apparatus for loom harness
US5630448A (en) * 1996-03-25 1997-05-20 Steele Heddle Manufacturing Company Heddle frame with torque locking block center brace assembly

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3220710C2 (de) * 1982-06-02 1986-04-03 Grob & Co AG, Horgen, Zürich Webschaft
US4635685A (en) * 1985-04-24 1987-01-13 Ellison, Pioneer Division Detachable bifurcated center brace loom harness
BE1015923A6 (nl) * 2004-03-02 2005-11-08 Picanol N V Naamloze Vennoosts Verbindingselement voor een weefkader en weefkader.

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR976884A (fr) * 1948-10-23 1951-03-23 Trefileries Perfectionnements apportés aux cadres porte-lisses pour métiers à tisser
US2674273A (en) * 1948-12-15 1954-04-06 Froehlich A G E Heddle frame for looms
FR1181962A (fr) * 1956-09-04 1959-06-19 Frohlich A G E Lame pour métiers à tisser
US2944571A (en) * 1957-03-30 1960-07-12 Sulzer Ag Heddle frame
CH372620A (de) * 1959-03-11 1963-10-15 C C Egelhaaf Kg Mittelstütze an einem Webeschaft
US3221776A (en) * 1963-09-30 1965-12-07 Wagner Theodor Heddle-support devices for weaving looms

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR976884A (fr) * 1948-10-23 1951-03-23 Trefileries Perfectionnements apportés aux cadres porte-lisses pour métiers à tisser
US2674273A (en) * 1948-12-15 1954-04-06 Froehlich A G E Heddle frame for looms
FR1181962A (fr) * 1956-09-04 1959-06-19 Frohlich A G E Lame pour métiers à tisser
US2944571A (en) * 1957-03-30 1960-07-12 Sulzer Ag Heddle frame
CH372620A (de) * 1959-03-11 1963-10-15 C C Egelhaaf Kg Mittelstütze an einem Webeschaft
US3221776A (en) * 1963-09-30 1965-12-07 Wagner Theodor Heddle-support devices for weaving looms

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3949789A (en) * 1972-06-14 1976-04-13 Grob & Co. Aktiengesellschaft Heddle frame stave with closed T-rail
JPS4941666A (US20110009641A1-20110113-C00256.png) * 1972-06-30 1974-04-19 Grob & Co Ag
US3948296A (en) * 1972-06-30 1976-04-06 Grob & Co. Aktiengesellschaft Frame stave for heald frame of weaving machine
JPS604291B2 (ja) * 1972-06-30 1985-02-02 グロ−ブ ウント コンパニイ アクチエンゲゼルシヤフト ヘルドフレームのフレームバー
US4658864A (en) * 1985-04-24 1987-04-21 Ellison, Pioneer Division Detachable center brace apparatus for loom harness
US5630448A (en) * 1996-03-25 1997-05-20 Steele Heddle Manufacturing Company Heddle frame with torque locking block center brace assembly

Also Published As

Publication number Publication date
GB1090448A (en) 1967-11-08
AT261504B (de) 1968-04-25
SE304964B (US20110009641A1-20110113-C00256.png) 1968-10-07
CH445406A (de) 1967-10-15

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