US2228828A - Noiseless toothed wheel - Google Patents

Noiseless toothed wheel Download PDF

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Publication number
US2228828A
US2228828A US248311A US24831138A US2228828A US 2228828 A US2228828 A US 2228828A US 248311 A US248311 A US 248311A US 24831138 A US24831138 A US 24831138A US 2228828 A US2228828 A US 2228828A
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United States
Prior art keywords
silk
wheels
plates
noiseless
compressed
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Expired - Lifetime
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US248311A
Inventor
Imai Gosuke
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.)
KATAKURA SEISHI BOSEKI KABUSHI
KATAKURA SEISHI BOSEKI KK
Original Assignee
KATAKURA SEISHI BOSEKI KABUSHI
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Priority to US248311A priority Critical patent/US2228828A/en
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Publication of US2228828A publication Critical patent/US2228828A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/02—Toothed members; Worms
    • F16H55/06—Use of materials; Use of treatments of toothed members or worms to affect their intrinsic material properties
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/19—Gearing
    • Y10T74/1987—Rotary bodies
    • Y10T74/19893—Sectional
    • Y10T74/19907—Sound deadening
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/19—Gearing
    • Y10T74/1987—Rotary bodies
    • Y10T74/19893—Sectional
    • Y10T74/19916—Multiple disks

Definitions

  • the presen invention relates to a noiseless toothed wheel, made of silk fibrous materials, and is characterized by the following features and constructions:
  • Compressed silk fibre plates are obtained by mixing silk 'fibre solution to broken silk libres laid crosswise and then by compressing them tor plates and drying; numerous plates thus obtained are piled up; or properly moistened silk libres l are heated and then softened sericins are compressed, so as to make the fibres adhere together compactly, and then they are cooled and dried, thus forming silk casting. From the compressed plates or silk castings formed as mentioned above,
  • Pulleys are formed by piling up numerous compressed silk fibre plates or from silk castings; on both sides of the pulleys thus formed, metallic 35 reinforcing plates with diameters slightly smaller than those of the pulleys, are provided; to bind the pulley and plates together closely, tie rods are provided.
  • Fig. 81s a sectional elevation showing an example of a wheel formed of silk casting or made of silk solution.
  • 55 Fig. 9 is a sidev elevation of the same.
  • Waste silk fibres or broken fibres obtained in the silk thread spinning operation are treated by roller type carding machine and lapped in thin 5 continuous layers, the grain of the fibres being arranged intercrossed; they are rolled on a drum and while they are being rolled, silk sericin solution obtained by mixing appropriate coagulating agents to a solution of boiled floss or cocoon hairs, is sprayed over the layers uniformly by an atomizer provided for the purpose; when they are lapped to a proper thickness, they are cut across and detached from the roller; While they are still wet, they are fully compressed, by a hydraulic press or the like and at the same time heated properly until desired thickness is obtained; then they are cooled and compressed silk fibre plates are obtained:
  • spur wheels l as shown in Fig. 1 and Fig. 2 or bevel wheels 2 as shown in Fig. 3, or Worm 3 as shown in Fig, 4, or pulleys 4 as shown in Fig. 5, are constructed. Further as shown in Fig. 6, in appropriate situations of compressed silk fibre plates 5, several metallic sheets 6, 'l and 8 are inserted; they are formed intotight, compact bodies which lessen friction in gearing with other wheels.
  • Fig. '7 several reinforcing rings 9 are provided, ⁇ closely surrounding the tie rods 45 for the purpose of reinforcement; or on both sides of the wheels, metallic reinforcing plates Il are provided; and to unite and assemble these into one body, above mentioned tie rods I0 are provided; or as shown in Fig. 8 and Fig. 9, prop- 50 erly shaped wheels are formed of silk fibre blocks I2.
  • reinforcing plates of diameters slightly smaller than those of the pulleys are provided on both sides of the pulley;
  • this provision is for the purpose of reinforcement of the pulley and at the same time.
  • the reinforcing plates I3 are prevented from coming into contact with other pulleys or belts; in this way, noise to be made by direct contact oi' metals, may be avoided.
  • toothed wheels Up to the present time, it has been usual to construct toothed wheels with phenol resin or leather with the object of preventing noise; in both'cf these cases, it has been quite expensive: in case of using phenol resin, teeth are liable to break and prevention of noise has been imperfect; while in case oi using leather, teeth are easily disfigured, accompanying existence of water or oil; in other words, the permanence and durability/,of wheels are not sufiicient.
  • a wheel comprising a plurality of plates arranged side by side and formed of compressed 10 GOSUKE IMAI. 20

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)

Description

Jan. 14, 194k G. lMAl 2,228,828
` NoIsELEss Too'rHED WHEEL Filed Deo, 29, 1938 2 Sheets-Sheet 1 i-,lagmmf' fin/en d Jan. 14, 1941. G. :MA1
uoIsELEss Too'rmsn waant.
Filed nec. 29, 195s- 2 shuts-snee'fz A Patented Jan. 14,1%@
UNITED STATES NOISELESS TOOTHED WHEEL Gosuke Imai, Naganoken, Japan, assignor to Katakura. Seishi Boseki Kabushiki Kaisha, Kyobashi, Kyobashiku, Tokyo, Japan Application December 29, 193,8, Serial No. 248,311
1 Claim. (Cl. 'J4-445) The presen invention relates to a noiseless toothed wheel, made of silk fibrous materials, and is characterized by the following features and constructions:
5 (1) Compressed silk fibre plates are obtained by mixing silk 'fibre solution to broken silk libres laid crosswise and then by compressing them tor plates and drying; numerous plates thus obtained are piled up; or properly moistened silk libres l are heated and then softened sericins are compressed, so as to make the fibres adhere together compactly, and then they are cooled and dried, thus forming silk casting. From the compressed plates or silk castings formed as mentioned above,
15 various wheels such a spur wheels, bevel wheels, worm wheels or pulleys of appropriate shapes are produced.
(2) In' piling up numerous silk compressed plates, several metallic sheets are inserted be- 20 tween the compressed plates at proper situations.
(3) In forming suitably shaped toothed wheels -by piling up numerous compressed silk ilbre plates or from silk castings, several annular reinforcement pieces are provided, closely surrounding tie 25 rods.
(4) In forming appropriately shaped wheels by piling up numerous compressed silk fibre plates or from silk castings, metallic reinforcing plates are provided on both sides of the wheels; and in 30 order to bind them-together closely, tie rods are provided.
(5) Pulleys are formed by piling up numerous compressed silk fibre plates or from silk castings; on both sides of the pulleys thus formed, metallic 35 reinforcing plates with diameters slightly smaller than those of the pulleys, are provided; to bind the pulley and plates together closely, tie rods are provided.
The accompanying drawings show the noiseless Fig. 81s a sectional elevation showing an example of a wheel formed of silk casting or made of silk solution. 55 Fig. 9 is a sidev elevation of the same.
The process of making wheels according to the present invention, is as follows:
Waste silk fibres or broken fibres obtained in the silk thread spinning operation are treated by roller type carding machine and lapped in thin 5 continuous layers, the grain of the fibres being arranged intercrossed; they are rolled on a drum and while they are being rolled, silk sericin solution obtained by mixing appropriate coagulating agents to a solution of boiled floss or cocoon hairs, is sprayed over the layers uniformly by an atomizer provided for the purpose; when they are lapped to a proper thickness, they are cut across and detached from the roller; While they are still wet, they are fully compressed, by a hydraulic press or the like and at the same time heated properly until desired thickness is obtained; then they are cooled and compressed silk fibre plates are obtained:
,As another process; unrened, natural silk -fibrous materials are immersed in water or dilute ammonia solution and moistened to such anextent that sericin contained in silk does not dissolve off; then small amount of proteinaceous, coagulating agent like urea tri-oxy-methylen, is added; the solution is placed in appropriate compressing moulds and heated; thus softened'sericin is compressed and the fibres adhere together compactly; then they are taken off the moulds, cooled and dried, and silk castings are obtained. Another process is to put silk fibres reduced to solution into mould, compressed, cooled and dried and y silk castings are obtained.
From the castings produced by any of the Vprocesses.mentioned above, spur wheels l as shown in Fig. 1 and Fig. 2 or bevel wheels 2 as shown in Fig. 3, or Worm 3 as shown in Fig, 4, or pulleys 4 as shown in Fig. 5, are constructed. Further as shown in Fig. 6, in appropriate situations of compressed silk fibre plates 5, several metallic sheets 6, 'l and 8 are inserted; they are formed intotight, compact bodies which lessen friction in gearing with other wheels.
As shown in Fig. '7, several reinforcing rings 9 are provided,` closely surrounding the tie rods 45 for the purpose of reinforcement; or on both sides of the wheels, metallic reinforcing plates Il are provided; and to unite and assemble these into one body, above mentioned tie rods I0 are provided; or as shown in Fig. 8 and Fig. 9, prop- 50 erly shaped wheels are formed of silk fibre blocks I2.
In pulley shown'in Fig. 5, reinforcing plates of diameters slightly smaller than those of the pulleys, are provided on both sides of the pulley;
this provision is for the purpose of reinforcement of the pulley and at the same time. the reinforcing plates I3 are prevented from coming into contact with other pulleys or belts; in this way, noise to be made by direct contact oi' metals, may be avoided.
Up to the present time, it has been usual to construct toothed wheels with phenol resin or leather with the object of preventing noise; in both'cf these cases, it has been quite expensive: in case of using phenol resin, teeth are liable to break and prevention of noise has been imperfect; while in case oi using leather, teeth are easily disfigured, accompanying existence of water or oil; in other words, the permanence and durability/,of wheels are not sufiicient.
Materials madero! silk fibres possess strength equal to that of leather wheels and are oil proof at the same time; therefore toothed wheels constructed by these materials, are anti-irictional oil-prooi, waterproof, and do not generate high heat.
They are therefore suitable as substitutes 0i' leather or metallic wheels and are highlydvantageous on account oi' being noiseless.
Having Ithus described my invention, what I Vclaim as new, and desire to secure by Letters Patent of the United States of America is:
A wheel comprising a plurality of plates arranged side by side and formed of compressed 10 GOSUKE IMAI. 20
US248311A 1938-12-29 1938-12-29 Noiseless toothed wheel Expired - Lifetime US2228828A (en)

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3076352A (en) * 1958-10-13 1963-02-05 Everett P Larsh Gear members and method of producing same
DE3907229C1 (en) * 1989-03-07 1990-04-26 Daimler-Benz Aktiengesellschaft, 7000 Stuttgart, De
US6419061B1 (en) * 2000-09-15 2002-07-16 Westinghouse Air Brake Technologies Corporation Anti-backlash mechanism
CN104595459A (en) * 2015-02-09 2015-05-06 盐城工学院 Composite gear with addendum modification
CN104633046A (en) * 2015-02-09 2015-05-20 盐城工学院 Laminated composite profile shifted gear
CN104633047A (en) * 2015-02-09 2015-05-20 盐城工学院 Tangential modified gear
CN104633048A (en) * 2015-02-09 2015-05-20 盐城工学院 Combined type radial profile-modified gear
CN104675955A (en) * 2015-02-09 2015-06-03 盐城工学院 Combined variable tooth thickness gear
WO2017176980A1 (en) * 2016-04-06 2017-10-12 Kugar Inc. System for alternative gearing solutions
US20230167891A1 (en) * 2021-11-30 2023-06-01 Gates Corporation Disc sprockets, disc sprocket systems, and methods for assembling the same

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3076352A (en) * 1958-10-13 1963-02-05 Everett P Larsh Gear members and method of producing same
DE3907229C1 (en) * 1989-03-07 1990-04-26 Daimler-Benz Aktiengesellschaft, 7000 Stuttgart, De
US6419061B1 (en) * 2000-09-15 2002-07-16 Westinghouse Air Brake Technologies Corporation Anti-backlash mechanism
AU777626B2 (en) * 2000-09-15 2004-10-21 Westinghouse Air Brake Technologies Corporation Anti-backlash mechanism
CN104595459A (en) * 2015-02-09 2015-05-06 盐城工学院 Composite gear with addendum modification
CN104633046A (en) * 2015-02-09 2015-05-20 盐城工学院 Laminated composite profile shifted gear
CN104633047A (en) * 2015-02-09 2015-05-20 盐城工学院 Tangential modified gear
CN104633048A (en) * 2015-02-09 2015-05-20 盐城工学院 Combined type radial profile-modified gear
CN104675955A (en) * 2015-02-09 2015-06-03 盐城工学院 Combined variable tooth thickness gear
CN104633046B (en) * 2015-02-09 2017-04-12 盐城工学院 Laminated composite profile shifted gear
CN104633047B (en) * 2015-02-09 2017-05-17 盐城工学院 Tangential modified gear
CN104633048B (en) * 2015-02-09 2017-05-17 盐城工学院 Combined type radial profile-modified gear
WO2017176980A1 (en) * 2016-04-06 2017-10-12 Kugar Inc. System for alternative gearing solutions
US20230167891A1 (en) * 2021-11-30 2023-06-01 Gates Corporation Disc sprockets, disc sprocket systems, and methods for assembling the same
US12031619B2 (en) * 2021-11-30 2024-07-09 Gates Corporation Disc sprockets, disc sprocket systems, and methods for assembling the same

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