US3409052A - Loom heddle frame - Google Patents

Loom heddle frame Download PDF

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Publication number
US3409052A
US3409052A US619808A US61980867A US3409052A US 3409052 A US3409052 A US 3409052A US 619808 A US619808 A US 619808A US 61980867 A US61980867 A US 61980867A US 3409052 A US3409052 A US 3409052A
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US
United States
Prior art keywords
hook
shank
projection
suspension
loom
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
US619808A
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English (en)
Inventor
Graf Martin
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
Original Assignee
Grob and Co AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Grob and Co AG filed Critical Grob and Co AG
Application granted granted Critical
Publication of US3409052A publication Critical patent/US3409052A/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
    • D03C9/065—Side stays
    • 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
    • D03C9/0666—Connection of frame parts
    • D03C9/0675—Corner connections between horizontal rods and side stays
    • 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
    • D03C9/0683—Arrangements or means for the linking to the drive system

Definitions

  • the hook is normally held in a raised position by a spring 15, and a rib 17 engaging in a keyway 12a prevents the hook from rotating, so that the vertical position of the hook can be adjusted simply by turning the nut 19.
  • the hook When the hook is pressed down so that its rib 17 disengages the keyway 12a the hook can be turned about its longitudinal axis (or tilted through a cutout 25) to expose the head 7 of a fastening screw 6.
  • This invention relates to heddle frames for loom harnesses of the type having suspension devices attached to the lateral supports of the frame. These suspension devices enable the frame to be connected to the shedding mechanism.
  • suspension devices Various kinds of suspension devices are known which are usually attached to the outside edges of the lateral supports in the region of the attachment of the lateral supports to the upper stave of the heddle frame.
  • the suspension devices are usually fastened to the lateral supports by means of screws, rivets or the like.
  • parts of the suspension device are formed by the lateral supports themselves when the latter are made of flat metal strips. Since the suspension devices have to be capable of transmitting considerable pulling forces applied jerkily in rapid succession to the heddle frame, such devices are not normally made detachable, or can only be detached with difiiculty.
  • the lateral supports are secured to the upper stave, for example by mortising, there being one or more screws for engagement with the end of the stave.
  • these fastening screws extend through the support and pass into the stave longitudinally of the stave, the heads of these screws being accessible only from the outside of the support.
  • the primary object of this invention is to provide a heddle frame in which parts, such as screw heads, in the 3,409,052 Patented Nov. 5, 1968 region of a suspension device can be made accessible without removing the suspension device wholly or in part, and in which this accessibility can be achieved without loosening adjustable parts.
  • Another object of the invention is to provide a heddle frame for a loom with a suspension hook mounted with its shank parallel with a lateral support of the frame with freedom for two independent degrees of movement, one permitting fine adjustment of the longitudinal position of the hook but not rotation of the hook about the longitudinal axis of its shank and the other permitting longitudinal sliding of the hook against a spring mounted on said book.
  • the permitted longitudinal sliding movement enables the hook to be moved out of the way of the fastening screws or any other parts which would otherwise be obscured by the hook, and provision may be made for holding the hook in a retracted position, for example, by rotating it or tilting it to one side.
  • FIG. 1 is a front elevation of the top right hand corner of a heddle frame with a suspension hook in the operative position;
  • FIG. 2 is an end view of the parts shown in FIG. 1;
  • FIG. 3 is a view in the same direction as FIG. 2 but showing the hook retracted and secured;
  • FIG. 4 is a section to a larger scale on the line IVIV in FIG. 3;
  • FIG. 5 is a view in the same direction as FIG. 2, but showing an alternative form of hook in its retracted position
  • FIG. 6 is a plan view to a larger scale of a bracket shown in FIG. 5.
  • the right hand end of the upper horizontal stave is indicated at 1, and the upper part of the vertical right hand side support is indicated at 2.
  • a lower horizontal stave and a vertical left hand side support (which for the sake of simplicity are not shown) they form a rectangular heddle frame.
  • This frame is equipped with an upper heddle carrying rod 3 and a lower heddle carrying rod (not shown) onto which vertically disposed heddles 4 are threaded.
  • the upper stave 1 is detachably connected by means of a fastening screw 6 with the side support 2.
  • a metal insert 5 is fitted in the end of the stave 1 and this insert is screwed internally to receive the screw 6.
  • the head 7 of the fastening screw is sunk in the side support 2.
  • the suspension device On the outside of the side support 2, which may for example be manufactured of compressed hardwood, a suspension device is fitted to provide a connection to the shed forming mechanism of the loom (which is not shown).
  • the suspension device includes a vertical bracket 8 fixed by rivets 9 to the side support 2.
  • the bracket 8 has upper and lower horiozntal projections 10 and 11 spaced vertically from each other, and formed respectively with aligned holes 12 and 13 through which passes the vertically disposed shank of a hook 14. If the side supports 2 are manufactured out of fiat metal strips, these can be bent edgewise in known manner to wholly or partially replace the bracket 8.
  • the hook 14 is bent at its upper end to form a V shaped hook end 16 and alongside the upper portion of its shank, it is formed with a longitudinal rib 17.
  • the hole 12 in the projection 10 at the top of the bracket 8, is shaped like a keyhole (see FIG. 4) there being a keyway 12a to slidably receive the longitudinal rib 17, which corresponds to the ward of the key.
  • a compression spring 15 surrounds the shank of the hook below the H517 and the upper endb'f this spring engages the lower end 17b of the rib, while the lower end of the spring engages the top side of the horiozntal lower projection 11.
  • the lower end of the shank of the hook extends freely through the hole 13 in the projection 11, and this end is screw threaded at 18 to receive a nut 19 which is preferably of a self locking type.
  • the hook 14 is in its basic operative position. lin this position, the nut 19 engages the underside of the projection '11 and the compression spring 15 holds the hook 14 in a raised position.
  • One of the advantages of the invention is that no counter nut is re- 'quired on the opposite side of the projection 11 to the nut 19, and consequently the self locking nut 19 can be adjusted without difficulty because the rib 17 prevents the hook from rotating about its longitudinal axis, and if any fine adjustment of the position of the suspension hook is required, it is only necessary to turn the nut 19. This provides the first degree, of movement permitted to the hook by the invention.
  • the hook 14 is shown in the retracted position, in which the head 7 of the screw 6 is uncovered so as to be easily accessible.
  • it is sufiicient simply to overcome the pressure of the coil spring 15, by pushing the book 14 downwards so far, that the upper end 17a of its longitudinal rib becomes disengaged from the keyway 12a, and the whole of the rib 17 is then disposed below the upper horizontal bracket projection 10.
  • the hook can be turned about its longitudinal axis, until the upper end 1711 of the rib is below a solid part of the projection and in this position, the spring 15 holds the upper end of the rib 17 pressed against the lower face of the projection 10, and the hook cannot spring back to its operative position.
  • FIG. 4 shows in dotted lines, the position of the upper end 17a of the rib, when the hook 14 has been turned in its retracted position.
  • the book will then spring back to its original operative position, and the vertical setting will be maintained, assuming that the nut 19 was not moved axially along the threaded portion of the shank of the hook.
  • the lower projection 22 of the bracket 8 has a hole 23 through which the shank of the hook passes, but in this construction, the hole 23 tapers so that its upper end is of larger diameter than its lower end.
  • the hole 24 in the upper projection 21 of the bracket 8, in addition to the keyway 12a is connected with a cut-out 25 at one side of the hole 24.
  • the width of this cut-out is slightly greater than the diameter of the reduced portion 20 of the shank 14, although it is preferably smaller than the diameter of the plane portion of the shank. Therefore, it is possible to swing the upper end of the hook 14 sideways as shown in FIG. 5, when the reduced portion 20 is brought into line with the cut-out 25 in the projection 21.
  • the hook 14 In the normal operative position, the hook 14 is he] in its upper position by the compression spring 15 and adjustment is obtained by turning the nut 19 as in the pre- 4 vious example.
  • the hook 14 When it is desiredto uncover the head 7 o f the screw 6, the hook 14 is depressed against the action of its compression spring, until the reduced portion 20 is in line with the cut-out 25, and then the hook 14 is tilted sideways to disengage it from the upper projection 21.
  • pressure is released from the hook 14, the latter again moves upwardly but this time in the tilted position, and it cannot get back into the hole 24 until it is again depressed to bring the reduced portion 20 into line with the cut-out -25.
  • the tilting movement of the hook is permitted by the tapering of the hole 23.
  • the advantage of the suspension devices described can be summarised as follows.
  • the shank hook can be adjusted vertically by turning of a single nut and in the operative position, the hook is resiliently mounted on the bracket. Also in the operative position, the suspension hook is secured against rotation about its longitudinal axis, without interferring with the lateral support itself.
  • This arrangement of the suspension hook provides a series of advantages in use.
  • Loom heddle frames can be made with easily interchangeable lateral supports, and can be transported as individual parts rather than as assembled frames. This produces economy in packing and freight charges and at the same time avoids the necessity for unscrewing and re-screwing the suspension devices on assembly by the customer. The economy in working time is considerable, because as a rule, one suspension device is required for eachlateral support.
  • a heddle frame having a vertical side support with a suspension device comprising a bracket having spaced upper and lower horizontal projections attached to said side support, and a hook member comprising a straight shank and a hook at the upper end of said shank, said shank extending freely lengthwise movable through aligned holes in said two horizontal projections and having a threaded lower end, a nut on said lower end adapted to engage the lower horizontal projection when said hook member is in its extended operative position, a helical spring engaging with its upper end a projection on said shank and with its lower end engaging the upper face of said lower projection for urging said hook member in its upper operative position in which said projection on said shank extends through a key slot formed in said upper horizontal projection, thereby preventing a rotation of said hook member, said projection on said shank upon lengthwise retraction of said hook member to an inoperative position being disengaged from said key slot and permitting a rotation of said hook member and an engagement of said projection on said shank with the lower face
  • said projection on said shank of said hook member comprises a lengthwise extending rib extending along the upper portion of said shank such a distance as to remain in engagement with said key slot in said upper horizontal projection when the shank is in its extended operative position and the nut at the threaded lower end of the shank engages the lower face of said lower horizontal projection.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Auxiliary Weaving Apparatuses, Weavers' Tools, And Shuttles (AREA)
US619808A 1966-03-02 1967-03-01 Loom heddle frame Expired - Lifetime US3409052A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH296966A CH435150A (de) 1966-03-02 1966-03-02 Webschaft

Publications (1)

Publication Number Publication Date
US3409052A true US3409052A (en) 1968-11-05

Family

ID=4245709

Family Applications (1)

Application Number Title Priority Date Filing Date
US619808A Expired - Lifetime US3409052A (en) 1966-03-02 1967-03-01 Loom heddle frame

Country Status (7)

Country Link
US (1) US3409052A (cs)
BE (1) BE693416A (cs)
CH (1) CH435150A (cs)
DE (1) DE1710426B1 (cs)
FR (1) FR1507993A (cs)
GB (1) GB1109989A (cs)
NL (1) NL6703198A (cs)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0161375B1 (de) * 1984-05-15 1987-12-23 GebràœDer Sulzer Aktiengesellschaft Schaftantriebsvorrichtung für eine Webmaschine
BE1004960A3 (nl) * 1991-06-26 1993-03-02 Picanol Nv Inrichting voor het vormen van een gaap bij weefmachines.

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2601872A (en) * 1949-08-31 1952-07-01 Steel Heddle Mfg Co Loom harness
US2982313A (en) * 1959-02-18 1961-05-02 Steel Heddle Mfg Co Loom harness
US3106942A (en) * 1961-04-19 1963-10-15 Pioneer Heddle And Reed Co Inc Heddle frame
US3260281A (en) * 1964-02-03 1966-07-12 Steel Heddle Mfg Co Loom harness

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2982314A (en) * 1959-05-08 1961-05-02 Hayden Boyd Adjustable hook for harness frame

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2601872A (en) * 1949-08-31 1952-07-01 Steel Heddle Mfg Co Loom harness
US2982313A (en) * 1959-02-18 1961-05-02 Steel Heddle Mfg Co Loom harness
US3106942A (en) * 1961-04-19 1963-10-15 Pioneer Heddle And Reed Co Inc Heddle frame
US3260281A (en) * 1964-02-03 1966-07-12 Steel Heddle Mfg Co Loom harness

Also Published As

Publication number Publication date
CH435150A (de) 1967-04-30
FR1507993A (fr) 1967-12-29
DE1710426B1 (de) 1971-09-16
GB1109989A (en) 1968-04-18
NL6703198A (cs) 1967-09-04
BE693416A (cs) 1967-07-03

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