US2705817A - Device for applying yielding pressure to a top roll in a drawing frame - Google Patents

Device for applying yielding pressure to a top roll in a drawing frame Download PDF

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Publication number
US2705817A
US2705817A US397696A US39769653A US2705817A US 2705817 A US2705817 A US 2705817A US 397696 A US397696 A US 397696A US 39769653 A US39769653 A US 39769653A US 2705817 A US2705817 A US 2705817A
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US
United States
Prior art keywords
top roll
pressure
rolls
applying
drawing frame
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
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US397696A
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English (en)
Inventor
Thadeus J Giemza
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 BE533639D priority Critical patent/BE533639A/xx
Application filed by Whitin Machine Works Inc filed Critical Whitin Machine Works Inc
Priority to US397696A priority patent/US2705817A/en
Application granted granted Critical
Publication of US2705817A publication Critical patent/US2705817A/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
    • D01H5/46—Loading arrangements
    • D01H5/50—Loading arrangements using springs

Definitions

  • I provide spring-operated pressure-applying means which may be conveniently placed in operative position and as conveniently removed therefrom without displacing associated parts.
  • FIG. 1 is a front elevation of parts of a drawing frame having my improvements assembled therewith;
  • Fig. 2 is a sectional end elevation, taken along the line 2-2 in Fig. 1;
  • Fig. 3 is a perspective view of my improved pressureapplying device
  • Fig. 4 is a fragmentary perspective view showing a slight modification
  • Fig. 5 is a plan view, partly in section, of the type of anti-friction top roll with which the construction shown in Fig. 4 would be associated.
  • Fig. 1 I have shown parts of a drawing frame of commercial type and including upper and lower driven rolls and 11 rotatably and slidably mounted in bearing brackets or supports 12 and extending into a head 14.
  • the head 14 contains mechanism for rotating the rolls 10 and 11 and also for reciprocating or traversing the rolls relative to the fixed bearing support 12. It will be understood that the support 12 is duplicated at spaced points throughout the length of the drawing frame.
  • a traverse rod 16 is slidable in the supports 12 and is connected at 17 to the head 14 for reciprocation therewith.
  • Double top rolls 20 are associated with spaced iliafting portions 21 and 22 of the drawing rolls 10 and The specific mechanism for rotating and traversing the rolls 10 and 11 forms no part of the present invention, and suitable mechanism for this purpose is disclosed in the patent to Kooistra, No. 1,973,534 issued September 11, 1934.
  • My improved device for applying pressure to the top rolls 20 comprises a rigid metal frame member 30, preferably of aluminum, which frame member has slots 31 in its lower portion to receive lugs 32 formed on a part 33 which is mounted on the traverse rod 16 and may be secured thereto by a set-screw 35.
  • the position of the part 33 on the traverse rod 16 determines the position of the frame member along the axis of the drawing rolls 10 and 11.
  • the frame member 30 has a forwardly-extending arm which is slotted at its outer end to receive studs 42 in a bell-crank lever 44.
  • a depending arm 45 of the lever 44 supports a bearing block 46 which engages the middle portion or neck 47 of the double top roll 20.
  • the bearing block 46 may be of nylon or other similar anti-friction material.
  • a finger loop 48 on the front side of the arm 45 may be utilized for relieving pressure on a top roll 20, should removal thereof be desired.
  • the frame member 30 has an intermediate partition 50 2,705,817 Patented Apr. 12, 1955 "ice 2 with a positioninglug 51 which centers the lower end of a pressure-applying spring 52.
  • the bell-crank lever 44 has a rearwardly-e ttending arm 55 provided with a de, pending lug 56 which receives and centers the upper end of the spring 52.
  • the spring 52 applies a desired yielding pressure to the double top roll 20 through the bell-crank lever 44 and bearing block 46.
  • Bearing members 60 of nylon or other similar anti-friction material are formed to snap over the rolls 10 and 11, and
  • each pressure-1 applying unit or device may be mounted in position or removed therefrom without interference with any other part of the machine.
  • anti-friction top rolls of the type shown in Fig. 5, in which shells are mounted on ball-bearings 71 carried by a short shaft 72 having a neck portion or recess 73.
  • the bearing block 46 (Fig. 3) may be replaced by the simple bracket 75 shown in Fig. 4. Otherwise the construction and operation is as previously described, the arm 45a and the; loop 48a corresponding in all respects to the arm 45 ings 60 and position the frame 30 axially of the drawing rolls 10 and 11.
  • a readily detachable tension device for each top roll unit comprising an independent frame member, bearing blocks mounted on said frame member and engaging said upper and lower drawing rolls at the rear of said rolls and coacting with said drawing rolls to entirely support said frame member and tension device, said frame member having an upper forward projection, a bell-crank lever pivotally mounted at the upper end of said forward projection and having a depending arm and a rearwardly-extending arm, a pressure-applying device for said top roll unit which is mounted at the free end of said depending lever arm, and a spring effective to apply pressure through said rearwardly-extending lever arm, said depending lever arm and said pressure-applying device to said top roll unit, and said spring being also effective to apply forward pressure through said bearing blocks to said drawing rolls and to thereby hold said frame member and tension device in operative position in said drawing frame.
  • a tension device for each top roll unit comprising a frame member, means to support said frame member behind said drawing rolls, said frame member having a forward projection, a bell-crank lever pivotally mounted at the outer end of said forward projection and having a depending arm and a rearwardly-extending arm, a pressure-applying device for said top roll unit mounted at the free end of said depending lever arm, a spring eifective to apply pressure through said rearwardly-extending lever arm to said depending lever arm and pressure-applying device and to said top roll unit, a traverse rod, and a part clamped References Cited in the file of this patent UNITED STATES PATENTS Kooistra Sept. 11, 1934 Hughes Mar. 2, 1937 4 Harris Dec. 6, 1938 Harris Apr. 4, 1939 Dcnham Dec. 22, 1949 Hinton Aug. 10, 1954 FOREIGN PATENTS Great Britain Jan. 18, 1939

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
US397696A 1953-12-11 1953-12-11 Device for applying yielding pressure to a top roll in a drawing frame Expired - Lifetime US2705817A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
BE533639D BE533639A (no) 1953-12-11
US397696A US2705817A (en) 1953-12-11 1953-12-11 Device for applying yielding pressure to a top roll in a drawing frame

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US397696A US2705817A (en) 1953-12-11 1953-12-11 Device for applying yielding pressure to a top roll in a drawing frame

Publications (1)

Publication Number Publication Date
US2705817A true US2705817A (en) 1955-04-12

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BE (1) BE533639A (no)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2900674A (en) * 1954-02-23 1959-08-25 Whitin Machine Works Pressure-applying means for drafting roll

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1973534A (en) * 1932-03-07 1934-09-11 Whitin Machine Works Drawing mechanism for wool spinning frames
US2072452A (en) * 1934-07-28 1937-03-02 Hughes John Gilling machine and drawing machine for the treatment of fibrous materials
US2139016A (en) * 1935-08-03 1938-12-06 Harris Textile Machinery Corp Pressure mechanism for drafting apparatus
GB499086A (en) * 1938-04-25 1939-01-18 James F Low & Company Ltd Improvements in or relating to spinning or twisting frames
US2153118A (en) * 1937-02-26 1939-04-04 Harris Textile Machinery Corp Tensioning device for drafting machines
US2489015A (en) * 1946-08-19 1949-11-22 Taylor Wordsworth & Company Lt Spring-loaded roller for combing machines and the like
US2685710A (en) * 1950-05-03 1954-08-10 Terrell Mach Co Detaching roll weighting mechanism for combers

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1973534A (en) * 1932-03-07 1934-09-11 Whitin Machine Works Drawing mechanism for wool spinning frames
US2072452A (en) * 1934-07-28 1937-03-02 Hughes John Gilling machine and drawing machine for the treatment of fibrous materials
US2139016A (en) * 1935-08-03 1938-12-06 Harris Textile Machinery Corp Pressure mechanism for drafting apparatus
US2153118A (en) * 1937-02-26 1939-04-04 Harris Textile Machinery Corp Tensioning device for drafting machines
GB499086A (en) * 1938-04-25 1939-01-18 James F Low & Company Ltd Improvements in or relating to spinning or twisting frames
US2489015A (en) * 1946-08-19 1949-11-22 Taylor Wordsworth & Company Lt Spring-loaded roller for combing machines and the like
US2685710A (en) * 1950-05-03 1954-08-10 Terrell Mach Co Detaching roll weighting mechanism for combers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2900674A (en) * 1954-02-23 1959-08-25 Whitin Machine Works Pressure-applying means for drafting roll

Also Published As

Publication number Publication date
BE533639A (no)

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