US3424205A - Guide for detachably mounting on a stave or a heddle frame for a loom - Google Patents

Guide for detachably mounting on a stave or a heddle frame for a loom Download PDF

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Publication number
US3424205A
US3424205A US625646A US3424205DA US3424205A US 3424205 A US3424205 A US 3424205A US 625646 A US625646 A US 625646A US 3424205D A US3424205D A US 3424205DA US 3424205 A US3424205 A US 3424205A
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United States
Prior art keywords
stave
guide
frame
heddle
staves
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Expired - Lifetime
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US625646A
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English (en)
Inventor
Bernhard Robert Koch
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.)
Grob and Co AG
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Grob and Co AG
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Publication date
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Publication of US3424205A publication Critical patent/US3424205A/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
    • D03C9/0616—Horizontal upper or lower rods
    • D03C9/0641—Distance guides for keeping distance to the next frame

Definitions

  • the heddle frames have lateral supports the thickness of which is only slightly less than the pitch of the harness.
  • the same purpose is served by arranging the lateral supports to run in laterally disposed guides or by drive units acting on the heddle frames and held at an adequate distance from each other to produce the pitch of the harness.
  • the two lateral supports of a heddle frame are joined by the upper and lower frame staves the upper heddlecarrying rod being suspended from the upper stave and the lower heddle-carrying rod being held above the lower stave.
  • the frame staves are usually thinner than the lateral supports. Given, for example, a pitch of the harness of 10 or 12 millimetres, the stave thickness recommended by the International Standards Organisation (1.8.0.) is 8 or 9 millimeters. This leaves a distance between t-he stave of 2 or 3 millimetres.
  • a well known and elementary guide comprises a wood plate of approximately the same thickness as the lateral supports. This plate is formed with a slot corresponding approximately to the cross-sectional shape of the frame stave, and is placed on the stave and glued to it.
  • Such a guide fulfills two essential requirements, namely that its thickness corresponds approximately to that of the lateral supports thereby avoiding the possibility of the staves on adjacent heddles knocking each other, and at the same time they also guide the staves during the entire shedding motion because they protnude above or below the stave (as the Patented Jan. 28, 1969 case may be), to such an extent that the maximum possible shed opening leaves the guides of adjacent heddle frames in contact with each other.
  • these glued on guides have the disadvantage that they cannot be removed from the frame stave nor moved along it nor replaced without destroying them.
  • Another kind of guide comprises a plate made of antifriction material.
  • This plate is provided with one of various kinds of clamping devices whereby it can be clamped onto its stave, and by activating the clamping device, the guide can be fixed firmly at the desired position along the length of the frame stave.
  • this type of guide requires the provision of some kind of profile formation on the stave (usually along the outside edge).
  • the guided has to be threaded onto the retaining profile of the frame stave by pushing it along the stave from one end, or else recesses have to be formed in the stave which add to the cost and reduce the strength of the stave.
  • a further disadvantage of this known type of stave guide is that its gliding surfaces cannot extend over the width of the frame stave towards the inside edge, because as soon as lateral thrust is exerted on the part of the guide which projects from the outside of the stave, by an adjacent heddle frame, the inner parts of the guide are lifted away from the stavethe guide rocking on its connection with the outside edge of the stave. But since the gap between frame staves on adjacent heddles may be only 1 or 1.5 millimetres, any such lifting of parts of the guide is likely to cause damage either to the guide or an adjacent heddle frame.
  • Guidelike clips of, for example, steel spring strip are also known, which can be put astride over the frame staves. Their dents at the lower end include the radius on the inner edge of the stave, to a small extent, and
  • a detachable guide for fitting on the stave of a heddle frame comprises a pair of parallel guide plates connected together and provided with resilient legs which form extensions of the guide plates and whose outside faces lie in the same planes as the outside faces of their respective guide plates, the legs being formed with inturned feet so that the legs have to be forced apart to fit the guide over a stave, and when the guide is in position on a stave, the feet clasp the in side edge of the frame stave whilst the connected parts of the guide plates are on the outside of the stave, there being also a resilient fastening device adapted to exert pressure on the outside edge of the stave.
  • a guide in accordance with the invention can be made to extend over the full depth of the stave on which it is to be fitted and can also project to the desired extent outside (i.e. above or below as the case may be) the frame stave.
  • FIG. 1 is a front view of a guide in position on a frame stave
  • FIG. 2 is an end view of the guide on its frame stave shown in FIG. 1, with an adjacent stave and guide alongside;
  • FIG. 3 is an enlarged detail of part of FIG. 2;
  • FIG. 4 is a view of part of the guide looking in the same direction as FIG. 1 but showing the position of certain parts when the guide is detached from its frame stave;
  • FIG. 5 is a view similar to FIG. 1, but showing an alternative construction.
  • the stave of a heddle frame is indicated at 1, it has the usual narrow rectangular cross-section with rounded edges.
  • a heddle carrying rod 2 is supported from the frame stave 1 by means not shown and heddles 3 are threaded onto the rod 2 in conventional manner.
  • a guide 4 is provided, and can be placed astride the frame stave at any desired position along the length of the stave.
  • the guide 4 has two side plates 5 and 6, formed complementary to each other, and preferably made out of spring steel strip.
  • the two plates 5 and 6 in their upper regions are spaced apart by distance pieces 7, 8 and 9, but they are fixed together in this region by welding or in any other convenient manner.
  • An anti-friction sheet 10 is fastened to the front face of the front guide plate 5.
  • a spring steel strip 11 (which provides a fastening device) is stretched around the distance pieces 7, 8 and 9, between the side plates and the ends 13, 14 of this strip meet each other in the region of the top distance piece 7. At each end, the strip 11 is reduced to complementary half widths which are curled round and cling to the top of the distance piece 7 and lie side by side. By inserting a suitable tool, the ends 13 and 14 of the strip can be prised off the distance piece 7 to remove the strip 11 if required for replacement.
  • the lower extensions of the guide plates 5 and 6 form legs which fit against the flanks of the stave when in position.
  • Each leg is formed with an inturned foot 15, 16 which extends across approximately half the width of the guide plate, the two feet being for-med on opposite halves of the plates so that they are not directly opposite each other.
  • the feet 15, 16 are bent through more than 91) from their respective legs (see FIGURE 3) and thus grasp the lower edge of the stave firmly from opposite sides when in position.
  • the remainder of the lower portion of each leg projects below the stave to provide tongues 17 and 18 serving as a hand or finger grip.
  • a friction grip 19 (or glide protector) is carried by the part of the strip 11 which extends between the distance pieces 8 and 9.
  • This grip 19 is made of rubber or similar resilient material and when the guide 4 is snapped onto a frame stave 1, the grip 19 is pressed by the strip 11 onto the top edge of the frame stave. The stave is then gripped between the feet 15, 16 and the grip 19 and is prevented from slipping along the stave by the friction between the grip 19 and the stave.
  • FIGURE 2 shows the manner in which two guides 4 and 4 fixed on the staves of adjacent heddle frames rub against each other to maintain the correct pitch of the harness.
  • This FIG. 2 shows clearly that the guide 4' with its lower part in the region of frame stave 1 when the warp shed is open, lies against the upper end of the guide 4 of stave 1 and under a strong pull in the direction of the arrow A (i.e. the direction of the warp threads) holds itself against the guide 4.
  • FIGURE 4 a section of the guide 4 is shown which for the time being is not put on a frame stave. Between the two distancing pieces 8 and 9, the spring strip 11 is bent outwards in this non-working position along with the glide protector 19 and with the guide 4 fitted, as shown in FIGURE 1, is pressed back so that the two feet 15 and 16 are drawn against the inner edge of the frame stave 1.
  • the lower ends of the two guide plates 5 and 6 are, by means of the tongues 17-18 are spread apart so far that they can be pushed over and astride the frame stave 1.
  • the guide is pressed so far against stave 1 that the two feet 15 and 16 snap in over the lower edge of stave 1.
  • the shaft guide 4 is effectively secured against any displacement along the stave 1.
  • the guide 4 sits snugly on the stave and the legs of its two guide plates 5, 6 are bound to be drawn against the side surfaces of the stave. They cannot protrude laterally and thereby enlarge the pitch of the harness in their region or get stuck at the change of shed.
  • the guide 22 shown in FIGURE 5 is very similar to that shown in FIGURES 1 to 4 and the same reference numerals are used for identical parts.
  • the spring strip fastener 11 is replaced by a spring strip 23 and a spring strip fastener 24.
  • the strip 23 embraces at its ends the distance pieces 7 and 8, but the fastener 24 is formed as a cranked lever with a lower arm 26 on which there is carried a friction grip 25, and an upper arm 27.
  • the strip is formed into a portion which embraces more than half the circumference of the distance piece 9 (so that it has to be snapped Onto that distance piece) thereby providing a pivot for the member 24.
  • the upper end of the arm 26 is formed into a handle 28 and a dented portion 29 which can be engaged with the distance piece 7 as shown to hold the member 24 in such a position that it presses the grip 25 onto the frame stave 1. This secures the guide against movement along the stave.
  • the dent 29 disengages the distance piece 7 and the member 24 turns about its pivot on the distance piece 9.
  • the guide 22 can then be moved along the stave as required and locked again in a new position.
  • both the spring strips 23 and 24 can be released from the distance pieces for replacement.
  • the strips 11, 23 and 24 are made wide enough to fill the distance between the two side plates 5 and 6, so as to prevent fibrous material collecting between the said plates.
  • the guide described can easily be put on and taken off the frame stave. This advantage is considerable, for heddle frames cannot, for automatic drawing-in, be inserted with guides in all drawing-in machines. Likewise, fixed guides have a disturbing effect in the storing of heddle frames, because they increase considerably the space required. Besides it is often advisable in washing and then drying the loom harness, to remove the guides for a short time.
  • the guide does not engage the longitudinal profile of the stave, it does not have to be displaced as far as the end of the stave in order to be taken off. It is even more advantageous when, as is the case with broad heddle frames, two or more guides are required on each of the upper and lower staves. Besides, this guide can be put on and taken off without the necessity of also displacing or removing the raising and lowering elements that are also attached to the frame stave.
  • a detachable guide for the horizontal stave of a heddle frame of a loom comprising a pair of spaced parallel guide plates, spacing means between the upper portions of said plates for spacing the same a fixed distance apart, the lower portions of each guide plate forming resilient legs engaging opposite side walls of said stave and having outer surfaces disposed in the same planes as the outer surfaces of the upper portions of said guide plates, an inturned foot on the lower end of each of said legs, said legs being spaced apart by such a distance that they have to be forced apart to enable said feet to pass transversely over said stave, whereby said feet clasp the inside edge of said stave when said guide is in position on said stave, and said connected guide plates are on the outside of said stave, and resilient fastening means for exerting pressure on the outside edge of said stave.
  • each of said feet is bent through more than 90 relatively to said leg on which it is formed so that said leg and said feet together include an acute angle.
  • each of said feet extends only a portion of the width of said leg along said leg on which it is formed, the remainder of the lower part of said leg forming a hand grip which is disposed on the inside of said stave when said guide is in position thereon.
  • each of said hand grips is bent inwardly relatively to said leg, so that said leg and said hand grip together subtend an obtuse angle.
  • said spacing means comprise a plurality of distance pieces disposed between the upper portions of said guide plates and said resilient fastening means includes a spring strip supported by said distance pieces.
  • a detachable guide according to claim 6, wherein said spring strip forms a cranked lever, a part of which embraces one of a plurality of distance pieces forming said spacing means to pivot said lever thereon, said friction grip being attached to a portion of said lever which faces the outside edge of said stave when said guide is in position on said stave, another portion of said spring strip being formed as a handle.
  • a detachable guide forms a cranked lever, a part of which embraces one of a plurality of distance pieces forming said spacing means to pivot said lever thereon, said friction grip being attached to a portion of said lever which faces the outside edge of said stave when said guide is in position on said stave, another portion of said spring strip being formed as a handle, said last named handle portion also providing a portion which engages another one of said distance pieces to cause said spring strip to urge said friction grip into engagement with said stave.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
US625646A 1966-04-04 1967-03-24 Guide for detachably mounting on a stave or a heddle frame for a loom Expired - Lifetime US3424205A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH490466A CH439166A (de) 1966-04-04 1966-04-04 Feststellbare Führung für Schaftstäbe von Webschäften

Publications (1)

Publication Number Publication Date
US3424205A true US3424205A (en) 1969-01-28

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US625646A Expired - Lifetime US3424205A (en) 1966-04-04 1967-03-24 Guide for detachably mounting on a stave or a heddle frame for a loom

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US (1) US3424205A (de)
BE (1) BE695840A (de)
CH (1) CH439166A (de)
FR (1) FR1514711A (de)
NL (1) NL6704028A (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3970114A (en) * 1974-04-18 1976-07-20 Grob & Co. Aktiengesellschaft Heald frame with movable holding element fitted on the frame stave
US4091844A (en) * 1977-02-25 1978-05-30 Pioneer Heddle And Reed Company Incorporated Loom harness
US4572242A (en) * 1983-11-09 1986-02-25 Maruyama Mfg. Co., Ltd. Heald frame assembly
EP0341526A1 (de) * 1988-05-05 1989-11-15 LAMIFLEX S.p.A. Trennungsaufsatz zur Führung von Webschäften

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3470920A (en) * 1968-02-16 1969-10-07 Steel Heddle Mfg Co Loom harness
JPS6082471U (ja) * 1983-11-09 1985-06-07 株式会社丸山製作所 綜絖枠の案内板

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1611396A (en) * 1924-08-01 1926-12-21 Crompton & Knowles Loom Works Connecter for loom harness frames
FR1007091A (fr) * 1948-02-24 1952-04-30 Perfectionnements aux cadres porte-lisses pour métiers à tisser
DE927019C (de) * 1952-04-11 1955-04-28 Klaas De Vries Fa Aufhaengehaken fuer Webschaefte
CH344384A (de) * 1956-08-03 1960-01-31 Froehlich Ag E Auf einen Webschaft aufzusetzende Führung
US3251383A (en) * 1964-02-03 1966-05-17 Steel Heddle Mfg Co Loom harness

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1611396A (en) * 1924-08-01 1926-12-21 Crompton & Knowles Loom Works Connecter for loom harness frames
FR1007091A (fr) * 1948-02-24 1952-04-30 Perfectionnements aux cadres porte-lisses pour métiers à tisser
DE927019C (de) * 1952-04-11 1955-04-28 Klaas De Vries Fa Aufhaengehaken fuer Webschaefte
CH344384A (de) * 1956-08-03 1960-01-31 Froehlich Ag E Auf einen Webschaft aufzusetzende Führung
US3251383A (en) * 1964-02-03 1966-05-17 Steel Heddle Mfg Co Loom harness

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3970114A (en) * 1974-04-18 1976-07-20 Grob & Co. Aktiengesellschaft Heald frame with movable holding element fitted on the frame stave
US4091844A (en) * 1977-02-25 1978-05-30 Pioneer Heddle And Reed Company Incorporated Loom harness
US4572242A (en) * 1983-11-09 1986-02-25 Maruyama Mfg. Co., Ltd. Heald frame assembly
EP0341526A1 (de) * 1988-05-05 1989-11-15 LAMIFLEX S.p.A. Trennungsaufsatz zur Führung von Webschäften

Also Published As

Publication number Publication date
BE695840A (de) 1967-09-01
NL6704028A (de) 1967-10-05
DE1710427A1 (de) 1971-03-11
CH439166A (de) 1967-06-30
FR1514711A (fr) 1968-02-23

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