US2020483A - Long draft spinning - Google Patents

Long draft spinning Download PDF

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Publication number
US2020483A
US2020483A US704873A US70487334A US2020483A US 2020483 A US2020483 A US 2020483A US 704873 A US704873 A US 704873A US 70487334 A US70487334 A US 70487334A US 2020483 A US2020483 A US 2020483A
Authority
US
United States
Prior art keywords
apron
aprons
rolls
cradle
draft
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
US704873A
Other languages
English (en)
Inventor
James L Truslow
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.)
Whitin Machine Works Inc
Original Assignee
Whitin Machine Works Inc
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
Priority to FR776081D priority Critical patent/FR776081A/fr
Application filed by Whitin Machine Works Inc filed Critical Whitin Machine Works Inc
Priority to US704873A priority patent/US2020483A/en
Application granted granted Critical
Publication of US2020483A publication Critical patent/US2020483A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/26—Drafting machines or arrangements without fallers or like pinned bars in which fibres are controlled by one or more endless aprons

Definitions

  • the invention relates to apron guides for Casato stituted of slender rods or cross pins, removably carried on removable frames called cradles which rest on the rolls themselves and hold the aprons so that they run close to the bites of the next succeeding pairs of rolls.
  • cradles which rest on the rolls themselves and hold the aprons so that they run close to the bites of the next succeeding pairs of rolls.
  • the process of removing the cradles so as to gain access to underlying parts for cleaning orrepair requires that the cradles be more or less taken apart, which is a slow and somewhat complicated operation involving the risk that some of the parts may drop into the machine or become lost or misplaced or improperly replaced.
  • the cradle with their apron-bearings and all their associated parts are organized each into a unitary structure, readily separable as such from its apron or aprons and from the rolls without risk of losing any part andalso affording additional advantages as will presently become apparent.
  • the principles involved in this invention can be variously embodied, as will also presently appear.
  • the drawings hereto represent the form at present preferred.
  • Fig. 1 being a vertical section through a roll head of a spinning frame, on line 1-1 of Fig. 2;
  • Fig. 2 a top plan in the direction of arrow 2;
  • Fig. 4 a side view of Fig. 3, illustrating the a cradle lock
  • Fig. 5 the blank from which the preferred form of cradle is stamped
  • Fig. 6 a detail of the guard
  • I Fig. 7 a perspective of one of the apron-bearing members.
  • the draftin system comprises three pairs of rolls of successively greater surface velocities and marked ii-it, l3--l4 and which will be understood. to be appropriately i5-i6, respectively, and
  • the intermediate rolls which may be geared together, if desired, though not so shown, are respectively circled by the endless leather belts or aprons 25 and 26, and the for- Ward end of each apron is'supported by and 5 7 travels upon an apron-bearing represented by a pair of studs or fingers 35 referred to below.
  • These studs are permanently attached'to the side or check plates 35 which are rigidly joined together by a riveted cross bar 33 and a flat in- 10 tegral cross plate 32.
  • the lower margins of the side plates are recessed or notched as at E0 to fit over or rest upon the bottom draft roll iii.
  • the upper margins of the-side plates are also notched as at ti to receive the top roll it, which 15 is set as usual in the slots of its cap bars 22.
  • the detail of the cradleframe will be clear-from the blank Fig. 5 from which it is formed. 1
  • a guard 50 pivoted to 20 the cheek 3i at 5!, and provided with a part or parts adapted to coact with the bottom roll in the bottom notch so as to control the entrance of the top roll into the top notch of the cradle.
  • the guard 50 is so arranged as to be en- 25 gaged by the bottom roll when the latter has fully entered the bottom notch and be moved thereby so that its upper end 5% isshifted out of alinement with the top notch and only until such movement can the top roll be inserted in the top notches. In 30 all other positions of the guard it obstructs such placement ofthe .toproll.
  • the guard 50 has also a hook portion 53 whlchmore 35 or less closes the bottom notch t0, when the bottom roll is within it, thus also looking the cradle to the roll andpreventing top roll insertion until such locking has been effected.
  • the invention of the present case concerns the apron-bearings, which are permanently fastened to the cradle frames instead of being loose members or cross-pins as heretofore and the invention consists in the provision of a space or gap in association with such permanent apron-bearings through which the apron which normally circles it can be passed and thus separated from the cradle.
  • Such gap isformed in the illustrated case by the space between the proximate ends of the pair of fingers 35 constituting the apron-bearing for each apron and this space is large enough so that by slightly buckling or bending the apron it can be slipped out of position and off the ends of the fingers and thus removed through the gap.
  • the exit space or gap can be at one side or the other and still provide the convenience of quick removability without the use of loose parts requiring to be taken apart and separately manipulated, which is to say, that the fingers 35 are not necessarily of equal length though so shown and that one or the other of them can, if desired, be so long as to perform the most or all of the apron supporting function. Specially satisfactory support however is afforded by two spaced apart inward projections such as the bearing members 35, which engage only the side portions of the aprons and give no direct support to their central portions.
  • the texture of the leather or material commonly used for these aprons is such that in thus spanning a central gap they exert a desirably constant and also well distributed pressure upon the roving. Accordingly the gap may be wide and the studs short.
  • the bearing members have been referred to as studs or fingers and shown as of oblong section and riveted to the side plates, it will be apparent that their described functions will be properly'performed if made of any appropriate configuration integral or otherwise, so long as space is made or provided through which the apron may be passed. However they are preferably formed of oblong section, the lower faces of the upper fingers being fiat and parallel to the upper faces of the lower fingers, inamuch as this makes for better contact of the aprons with the roving and in practice runs clean of fly.
  • the guard members 50 are provided with extensions which occupy the spaces between the studs and above and below them when the guards are up and thereby provide smooth faces for contact with the edges of the aprons to reduce wear and assist in steadying them on their bearings.
  • a cradle for long-draft spinning aprons comprising a frame composed of united side 5 plates having top and bottom notches to receive the top and bottom draft rolls and having upper and lower pairs of inwardly projecting bearing members respectively constituting apron bearings for the top and bottom aprons, 'of said rolls and circled respectively thereby, the members of each pair being separated by a gap suited for the removal of the apron therefrom.
  • a cradle for long-draft spinning machines comprising side plates rigidly united to form-av frame and provided with top and bottom notches for the top and bottom draft rolls, apron bearings respectively circled by the aprons of said draft rolls, and composed of inward projections rigidly fastened to said frame, the inner ends of 20 said projections being unobstructed for apron removal and the cross-sections of said projections being oblong.
  • a cradle for long-draft spinning aprons comprising a frame with apron-guiding side wall members respectively shaped to be removably 40 seated between draft 1 rolls and apron-bearing meanspermanently attached to said frame, said means being circled by the apron and affording a space at the forward end of the apron permitting removal of the latter from said bearing 45 means and frame.
  • a cradle for long-draft spinning aprons comprising a frame composed of apron-guiding side members formed to seat removably in fixed relation to a bottom draft roll and shaped to ac- 60 commodaie the complementary top roll, upper and lower aprons encircling said rolls and apronbearing means constituting permanent parts of the cradle also encircled by the respective aprons, both said means being respectively associated 55 with openings at the forward ends of the aprons for the separation of the latter from the frame, said openings intervening between the frame side members and forming exits through whichthe aprons may be passed.
  • a cradle for long-draft spinning aprons comprising a frame shaped to receive top and bottom draft rolls, apron bearings permanently mounted thereon circled by aprons on said rolls,

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
US704873A 1934-01-02 1934-01-02 Long draft spinning Expired - Lifetime US2020483A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR776081D FR776081A (enrdf_load_stackoverflow) 1934-01-02
US704873A US2020483A (en) 1934-01-02 1934-01-02 Long draft spinning

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US704873A US2020483A (en) 1934-01-02 1934-01-02 Long draft spinning

Publications (1)

Publication Number Publication Date
US2020483A true US2020483A (en) 1935-11-12

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
US704873A Expired - Lifetime US2020483A (en) 1934-01-02 1934-01-02 Long draft spinning

Country Status (2)

Country Link
US (1) US2020483A (enrdf_load_stackoverflow)
FR (1) FR776081A (enrdf_load_stackoverflow)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2618024A (en) * 1949-12-30 1952-11-18 Whitin Machine Works Textile drafting mechanism
US2899714A (en) * 1957-05-02 1959-08-18 Casablancas High Draft Co Ltd Textile fibre drafting apparatus
US2993238A (en) * 1948-10-02 1961-07-25 Zellwolle Lehrspinnerei Gmbh Double belt drawing mechanism for spinning machines
US3254375A (en) * 1963-03-25 1966-06-07 Deering Milliken Res Corp Textile drafting apparatus
US3310846A (en) * 1963-03-25 1967-03-28 Deering Milliken Res Corp Textile drafting apparatus
US3332115A (en) * 1963-03-25 1967-07-25 Deering Milliken Res Corp Textile drafting apparatus

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE915192C (de) * 1942-07-16 1954-07-15 Hermann Kluftinger Dipl Ing Riemchenfuehrung fuer Streckwerke

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2993238A (en) * 1948-10-02 1961-07-25 Zellwolle Lehrspinnerei Gmbh Double belt drawing mechanism for spinning machines
US2618024A (en) * 1949-12-30 1952-11-18 Whitin Machine Works Textile drafting mechanism
US2899714A (en) * 1957-05-02 1959-08-18 Casablancas High Draft Co Ltd Textile fibre drafting apparatus
US3254375A (en) * 1963-03-25 1966-06-07 Deering Milliken Res Corp Textile drafting apparatus
US3310846A (en) * 1963-03-25 1967-03-28 Deering Milliken Res Corp Textile drafting apparatus
US3332115A (en) * 1963-03-25 1967-07-25 Deering Milliken Res Corp Textile drafting apparatus

Also Published As

Publication number Publication date
FR776081A (enrdf_load_stackoverflow) 1900-01-01

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