US2599714A - Swinging flap for tenter-frame clips - Google Patents

Swinging flap for tenter-frame clips Download PDF

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Publication number
US2599714A
US2599714A US202029A US20202950A US2599714A US 2599714 A US2599714 A US 2599714A US 202029 A US202029 A US 202029A US 20202950 A US20202950 A US 20202950A US 2599714 A US2599714 A US 2599714A
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US
United States
Prior art keywords
blades
flap
tenter
pressure
fulcrum
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
US202029A
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English (en)
Inventor
Klopfer Karl
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.)
Heberlein Patent Corp
Original Assignee
Heberlein Patent Corp
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 Heberlein Patent Corp filed Critical Heberlein Patent Corp
Application granted granted Critical
Publication of US2599714A publication Critical patent/US2599714A/en
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C3/00—Stretching, tentering or spreading textile fabrics; Producing elasticity in textile fabrics
    • D06C3/02—Stretching, tentering or spreading textile fabrics; Producing elasticity in textile fabrics by endless chain or like apparatus
    • D06C3/04—Tentering clips
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C2700/00—Finishing or decoration of textile materials, except for bleaching, dyeing, printing, mercerising, washing or fulling
    • D06C2700/06—Clips or accessories for tenters or driers

Definitions

  • This invention relates to tenter-frame clips, of the swinging flap type, and more especially to such swinging flaps for use in tenter-frame clips.
  • tenter frames which have clips that are arranged along the tenter frame inchain form on a chain conveyor.
  • the relatively stationary clips comprise a bed plate and a movable cooperating flap.
  • the fabric web that is to be tensed is drawn through between the fixed bed plate and the movable flap, With concomitant lifting of the latter, and the flap is then lowered and pressed down upon the fabric web, as by a counter weight.
  • tenterframe clips Very great demands are made on such tenterframe clips, since the fabric webs held tensed by them often travel through drying chambers which have a temperature of over 150 C.
  • the tenter-frame clips are therefore constantly subjected to comparatively great differences of temperature, which causes its parts constantly to undergo considerable expansions and contractions, in consequence whereof a faultless and firm support of the fabric web is easily rendered doubtful.
  • the least inexactitude in the parallelism between the pressure edge of the flap and the bed plate causes the fabric web to be grasped only partially and accordingly pulls askew or tears. Therefore the manufacturing tolerances of the known tenter-frame clips must be kept very narrow, which has a detrimental effeet in the high price of these parts.
  • a further disadvantage of the known clips lies in the fact that in case of a slight wear of the pressure edge of the flap the latter has to be refinished to insure at least normal parallelism. Since the difference between the distance of the axis of rotation of the flap from the bed plate and the distance from said axis to the edge of the flap is naturally comparatively small, only slight refinishing is possible. Thereafter the flaps of such devices have to be replaced.
  • An object of this invention is to provide a clip free from the disadvantages above referred to and possessing the desired advantages.
  • Another object is to provide a swinging fiap which may be used in clips of this type to provide the desired advantages.
  • Fig. 1 is a side view of tenter-frame clip, embodying my invention, viewed from the side of entrance of the fabric;
  • Fig. 2 is a top plan view of the device shown in Fig. 1;
  • Fig. 3 is a sectional view taken along line 3-3 of Fig. 1;
  • Fig. 4 is a longitudinal sectional view taken on line 4-4 of Fig. 3, showing further details of the flap with the plurality of blades in equalized clamping position and schematically showing an associated part of the clip body;
  • Fig. 5 is a cross-sectional view taken at line 5-5 of Fig. 4;
  • Figs. 6 and 7 are views similar to Fig. 4 showing the blade parts in different positions for illustration of the mode of operation of the pressure blades;
  • Fig. 8 is a View similar to Fig. 4 but showing a modified embodiment of the invention wherein four pressure blades are used.
  • l signifies the clip body.
  • an eye 2 having a bore and at the other end two eyes 3 and 4, respectively, equipped with vertically aligned bores.
  • the eye 2 is introduced between the eyes 311 and 4 a of one adjacent clip la (provided to the left of the tenter-frame clip I) and a pivot bolt is introduced through the three bores that are situated above one another; and the eye 2c of another adjacent clip lb (provided on the right of clip I) is similarly secured to the edges 3-4 of clip I
  • the bed plate 5 lies on a correspondingly shaped support table 6, which forms one piece with the eyes 2 to d. From the rear of the table 6 two bearing yokes 1 and 8 extend upwardly and then toward the front in substantial parallelism one to the other. On their free ends I and 8' they are provided with aligned bores which serve as the bearing-supports for a flap axle 9 whose axis is substantially parallel to the bed plate 5. On the axle 9 a swinging flap I2 is rotatably supported by means of two bearings ID and H, respectively.
  • the swinging flap l2 and the bed plate 5, in order to prevent rusting are preferably made of bronze or rustless steel, but all the other parts, forming the body of the described contrivance may be made of bronze or of malleable pig iron.
  • the flap axle 9, on its part, is made of steel or hard copper.
  • the swinging flap [2 On its rear'side the swinging flap [2 has a handle 13 (Figs. 2-3), :by means of which it is steered through the fabric web at the locking. Since this handle is directed downward, the bed plate 5 and the supporttable 6 have an aperture 14.
  • the swinging flap [2 is not provided with a unitary blade therewith, but, as is more fully shown in 1 Fig. 4, is provided with a cavity l5 providing a slot in which a plurality of pressure blades, such as 16 and ll, are movably supported.
  • the latter each have two longitudinally spaced vertically .elongated holes [8, ISland. 20, 2
  • the pressure blades l6, H are extensively movable in a direction up and down and are permitted a rocking motion, but are secured by the pins 22-25 from dropping out of the cavity l5 and are restrained ina lengthwise direc- 1 tion.
  • Ontheir lower gripping edges the pressure blades I6, I! are obliquely ground, as is apparent from Figs. 3 and 5, while on their upper side they each have raised fulcrum points, preferably in the form of semi-circular elevations 26 and 21, respectively, upon which a fulcrum bar serving as'a pressure equalization crossbar 23 lies.
  • the tenter-frame clip is shown with the blades in aposition illustrative of the position assumed when a clampedpiece of fabric F is first engaged by one pressure blade 16 only and the other blade I'Lisfree from engagement with the fabric;
  • the swinging flap may also be equipped with a greater number of pressure blades.
  • a swinging flap having four pressure blades 32-85, inclusive is illustrated. Certain features identical, or nearly so, to the device previously described will be designated with corresponding reference numerals with the prime suffix added.
  • the blades 32-35 are similarly secured for limited movement in the cavity :5 by pins, such as 36,
  • each pressure blade In the middle of the upper edge of each pressure blade a semicircular elevation, such as 38, is similarly arranged.
  • a supplementary fulcrum bar --39 lies upon elevations, such as 38, provided on one set of pressure blades 32 and -.33 and the bar 39 is secured against lateral displacement by a pair of spaced pins such as ll.
  • the top of the fulcrum bar 39 is provided intermediate its ends with a knife edge which engages near one end amain fulcrum bar or pressure equalizing cross-bar 52.
  • a similar supplementary fulcrum bar 4 lies upon like elevations on the other set of pressure blades as and, 35 and is secured against lateral displace-
  • the upper knife edge site end of the main fulcrum bar 42 which is prevented from v endwise displacement by pins, such. as-43.
  • the common pressure equalization crossbar 42 is-likewise shaped with a knife-edge at the top and can press with this part against the adjustment; screw 3
  • a swinging flap for use in a tenter-frame clip comprising a body member, a plurality of blade members supported by said body and having engaging edges extending beyond the lower edge of said body, said blades being disposed in substantially coplanar relationship and supported for limited individual movement relative to said body in the plane of said blades, and pressure equalizing means positioned for joint engagement with said body and blades for transmitting transverse movement of one of said blades to another of said blades.
  • a swinging flap for use in a tenter-frame clip comprising a body member, a plurality of blade members supported by said body and having engaging edges extending beyond the lower edge of said body, said blades being disposed in substantially coplanar relationship and supported for limited individual movement in a direction transverse their edges and angularly relative to said body in the plane of said blades, and pressure equalizing means positioned for engagement with respective blades at localized areas intermediate their oppositely disposed ends and positioned for engagement with a portion integrally rigid with said body at a point disposed substantially centrally lengthwise of said plurality of blades for transmitting transverse movement of one of said blades to another of said blades.
  • a swinging fiap for use in a tenter-frame clip comprising a body member adapted to be supported about a pivotal axis from a clip base and having a lower end provided with a slot extending in a direction substantially parallel to said axis, a plurality of blade members slidably disposed in said slot in tandem arrangement and having engaging edges movable outwardly beyond said slot, means individually restraining said blades for limited movement toward and away from said axis and for limited angular movement, a fulcrum bar movably disposed in said slot above said blades, and stops secured to said body member and disposed adjacent respectively opposite ends of said bar for limiting its endwise movement, said bar bein positioned for abutting engagement intermediate its ends with a portion provided on said body and about which said bar is adapted to pivot, the oppositely disposed ends of said bar being in force-transmitting connection with respectively corresponding oppositely disposed blades.
  • a swingin flap for use in a tenter-frame clip comprising a fiap body member having a cavity providing a blade slot extending in a direction lengthwise of said axis and opening outwardly through the lower edge of said flap body, a plurality of blades disposed in tandem within said slot with their lower edges extendable therethrough for gripping engagement, said blades each having a pair of vertically elongated holes spaced apart in a direction lengthwise of said blade, supporting pins passing through said holes and seated in said flap body, said blades each having an upwardly extending raised portion intermediate its ends providing a fulcrum 'point of limited area, a fulcrum bar movably disposed in said cavity above said blades with its opposite ends respectively positioned for engagement with said fulcrum points and being positioned for engagement intermediate its ends with a fulcrum about which said bar is pivotally movable, and means for maintaining said bar in operative engagement with said fulcrum points.
  • a swinging flap for use in a tenter-frame clip comprising a flap body member provided on its upper end with a pair of laterally spaced lugs having axially aligned bores for receiving an axle serving to pivotally support said flap from a clip body, said flap body having a cavity providing a blade slot extending in a direction lengthwise of said axle and opening outwardly through the lower edge of said flap body, a plurality of blades disposed in tandem within said slot with their lower edges extendable therethrough for gripping engagement, said blades each having a pair of vertically elongated holes spaced apart in a direction lengthwise of said blade, supporting pins passing through said holes and seated in said flap body, said blades each having an upwardly extending raised portion intermediate its ends providing a fulcrum point of limited area, a fulcrum bar movably disposed in said cavity above said blades with its opposite ends respective-1y positioned for engagement with said fulcrum points and being positioned for engagement intermediate its ends with a fulcrum about which
  • a swinging flap for use in a tenter-frame clip comprising a body member adapted to be supported about a pivotal axis from a clip base and having a lower end provided with a slot extending in a direction substantially parallel to said axis, a plurality of oppositely positioned blade members slidably disposed in said slot in tandem arrangement and having engaging edges movable outwardly beyond said slot, means individually restraining said blades for limited movement toward and away from said axis and for limited angular movement, a fulcrum bar movably disposed in' saidslot: above said blades, said bar 1 2 being disposed with its mid-portion engageable witn a fulcrum provided on said flap theoppositely disposedends of said bar being in body and force-transmitting connection with-respectively corresponding oppositely positioned blades.
  • TIA-swinging flap-foruse in atenter-frame clip comprising. a body member having an upperend adapted to be supported about a pivotal axis from .a clip base and having a lower end :provided with a slot extending in a direction substantially parallel to'said axis, two -blade members slidably disposed" in said'slot in: tandem arrangementand havingengaging edges disposed substantially in a common plane and movable outwardly beyond tion ofsaid bar, and. said bar having its opposite endsdisposed'for-operable contact with lim- -.ited zones intermediate the ends of respectively corresponding blades.
  • a main fulcrum bar movably disposed in said slot above said blades, said flap body having a fulcrum point engageable by an intermediate portion-of :saidmain bar intermediate its ends for rocking -movement about said fulcrum point, a pair of -supplemental fulcrum bars disposed in said slot between said main bar and respective sets-Jot blades. and being arranged for fulcrum engagement intermediate their ends with respectively corresponding ends of saidmain bar, said supplementalbars having their ends arranged'for con ltactwithlirnited zones intermediate the endsof respective corresponding individual blades, and

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Media Introduction/Drainage Providing Device (AREA)
US202029A 1950-02-11 1950-12-21 Swinging flap for tenter-frame clips Expired - Lifetime US2599714A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH691407X 1950-02-11

Publications (1)

Publication Number Publication Date
US2599714A true US2599714A (en) 1952-06-10

Family

ID=4529267

Family Applications (1)

Application Number Title Priority Date Filing Date
US202029A Expired - Lifetime US2599714A (en) 1950-02-11 1950-12-21 Swinging flap for tenter-frame clips

Country Status (5)

Country Link
US (1) US2599714A (fr)
CH (1) CH276386A (fr)
DE (1) DE899784C (fr)
FR (1) FR1032008A (fr)
GB (1) GB691407A (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1219897B (de) * 1961-04-24 1966-06-30 Trockentechnik Kurt Brueckner Kluppe
DE3229098A1 (de) * 1982-08-04 1984-02-09 H. Krantz Gmbh & Co, 5100 Aachen Taster fuer kluppenketten

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE425848C (de) * 1926-03-01 C G Haubold Akt Ges Kluppe

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
CH276386A (de) 1951-07-15
DE899784C (de) 1954-01-11
GB691407A (en) 1953-05-13
FR1032008A (fr) 1953-06-29

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