US2707402A - Air cooled pulley - Google Patents

Air cooled pulley Download PDF

Info

Publication number
US2707402A
US2707402A US27659652A US2707402A US 2707402 A US2707402 A US 2707402A US 27659652 A US27659652 A US 27659652A US 2707402 A US2707402 A US 2707402A
Authority
US
Grant status
Grant
Patent type
Prior art keywords
pulley
cover plate
provided
serrations
air
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
Inventor
James H Blair
Original Assignee
Chayes Dental Instr Company
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
Grant date

Links

Images

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H55/00Elements with teeth or friction surfaces for conveying motion; Worms; Pulleys; Sheaves
    • F16H55/32Friction members
    • F16H55/36Pulleys

Description

Filed March 14, 1952 INVENTOR.

JANISZS' H- BLAIR United States Patent 0 AIR COOLED PULLEY James H. Blair, New York, N. Y., assignor to Chayes Dental Instrument Company, New York, N. Y.

Application March 14, 1952, Serial No. 276,596 4 Claims. (Cl. 74-230.01)

This invention relates to air cooled pulleys and more particularly to a belt driven pulley that is provided with means to induce a turbulence in the air and provide ventilation of the pulley.

An object of this invention is to provide a high speed belt driven pulley that edge to create a turbulence of air in operation and a ventilating elfect upon the pulley.

A further object of this invention is to provide a high speed belt driven pulley and stationary cover plate positioned in spaced relationship and provided with a means to create a turbulence of air between the pulley and face plate and ventilating means provided in said cover plate.

A still further object of this invention is to provide a high speed belt driven pulley that is positioned adjacent provide to a stationary cover plate and in which exhaust ports are provided in the cover plate and in which the face of the pulley adjacent to the cover plate is provided with serrations or blades to produce a turbulence or fan effect upon the air surrounding said face.

Other objects of this invention shall be apparent by reference to the accompanying detailed description and the drawings in which Fig. 1 illustrates a portion of a dental hand piece in which the pulley is a single component,

Fig. 2 is a view partially in cross section taken on line 2-2 of Fig. 1,

Fig. 3 is a side elevational view of the pulley taken on line 3- -3 of Fig. 2, and

Fig. 4 is a side elevational View of the pulley cover plate taken on line 4-4 of Fig. 2.

eferring to Fig. 1 there is illustrated a dental hand piece 10. Mounted within this hand piece are a belt drive pulley 11 and a pair of belt driven pulleys 12 and 13. The pulleys 12 and 13, Fig. 2, are mounted in opposed re lationship on a central shaft 14, one on each side of the supporting framework 20. The pulleys are retained in a set operating position by means of cover plates 15 and 16. The central shaft 14 is provided with an internal thread at either end thereof and the cover plates 15 and 16 are provided with threaded studs 17 and 18 to fit and thread into the internal threads of the shaft 14. Pulleys 12 and 13 are identical in construction. They are provided with an external face formed with a serrated edge 19. The serrated edge 19 may also be formed as a plurality of small blades or fins to produce the same result. The cover plates 15 and 16 are provided with a plurality of apertures 21 spaced between the center and periphery of the circular cover plate. Referring to Fig. 2 it is apparent that the pulley 12 and cover plate 15 are mounted in a predetermined relationship so that the serrated edge 19 is spaced slightly away from the inner face of the cover plate and slightly below the periphery of the cover plate. This is of the utmost importance as this spacing provides the necessary inlet area for the churning blades or serrations of the pulley to draw the air into the space between the pulley and the cover plate and the churning blades or serrations is constructed with a serrated said cover plate provided with a a turbulence of air during rotation,

acting as a fan thus forces the air outward through the apertures 21 of the face plate. This induced ventilation under extremely high speed produces an unusual cooling effect upon the pulley proper. Itis apparent that the belt driven pulley under unusually high speeds will become extremely hot because of the friction produced between the belt and the pulley. This heat would be conducted through the supporting structure and is not only detrimental to the pulley bearing or supporting axle but would produce heat in the cover plate which may bear against the hand of the operator. But, due to the induced ventilation provided by the pulley, the heat is dispersed in the air stream and the pulley not only has a longer life but provides a cool cover plate which will not burn or cause discomfort to the operator.

Although I have described the high speed air cooled pulley as a component of a dental hand piece, this may be similarly used in conjunction with other devices and may be limited only by the appended claims.

What is claimed is:

l. A high speed V belt driven pulley and a cover plate, said cover plate mounted in a stationary position and spaced slightly from one face of said pulley, the periphery of said pulley formed as a solid V formation to receive said V belt, said face of said pulley adjacent to said cover plate provided with a serrated edge, said serrations shaped to create a turbulence of air during rotation and said turbulence providing a ventilating effect upon said pulley.

2. A high speed V belt driven pulley in combination with a protecting stationary mounted cover plate, said pulley having its periphery provided with a solid V formation to receive said V belt, said pulley provided with serrations around the periphery of one face, said serrations providing a blade effect to create a turbulence of air during rotation said cover plate provided with a plurality of ventilating apertures, said cover plate positioned adjacent to the side of said pulley provided with serrations, said pulley and cover plate spaced a predetermined distance apart to provide an inlet aperture for air around the periphery of said pulley, and means to form said serrations so that they will provide a forced ventilating draft between the pulley and the cover plate.

3. A high speed V belt driven pulley in combination with a protecting stationary mounted cover plate, said pulley having its periphery provided with a solid V formation to receive said V belt, said pulley provided with serrations around the periphery of one face, said serrations shaped so that a plurality of the faces of the serrations create a turblence of the air during rotation plurality of ventilating apertures, said cover plate positioned adjacent to the side of said pulley provided with serrations, said pulley and cover plate spaced at predetermined distance apart to provide an inlet aperture for air around the periphery of said pulley, and means to form said serrations so that they will provide a forced ventilating draft between the pulley and the cover plate.

4. A high speed V belt driven pulley in combination with a protecting stationary cover plate, said pulley having its periphery provided with a solid V formation to receive said V belt, said pulley provided with serrations around the periphery of one face, said serrated face of said pulley positioned adjacent to and spaced slightly from said cover plate, said serrations shaped to create said cover plate positioned adjacent to the side of said pulley provided; with serrations. said stationary cover plate provided with a plurality of ventilating apertures, and means to form said serrations so that they will provide a forced ventilation around and through the cover plate.

(References on following page) References Citedinvfhe file of this patent 1,443.541 1,711,254 UNITED STATES PATENTS 2,603,099 640,108 Dalzell Dec. 26, 1899 921,628 Platter May 11, 1909 5 1385396 Rayburn "July 26, 1921 292 961 Kimble Aug. 30, 1921 I 4 Kimble Jan. 30, 1923 Spreen Apr. 30, 1929 Holst July 15, 1952 FOREIGN PATENTS France Oct. 12, 1908

US2707402A 1952-03-14 1952-03-14 Air cooled pulley Expired - Lifetime US2707402A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US2707402A US2707402A (en) 1952-03-14 1952-03-14 Air cooled pulley

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US2707402A US2707402A (en) 1952-03-14 1952-03-14 Air cooled pulley

Publications (1)

Publication Number Publication Date
US2707402A true US2707402A (en) 1955-05-03

Family

ID=23057303

Family Applications (1)

Application Number Title Priority Date Filing Date
US2707402A Expired - Lifetime US2707402A (en) 1952-03-14 1952-03-14 Air cooled pulley

Country Status (1)

Country Link
US (1) US2707402A (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2842974A (en) * 1957-02-12 1958-07-15 Motor Condensator Cie Cooling means for v-belt pulleys
US3943785A (en) * 1974-04-26 1976-03-16 Carlisle Corporation Air cooled belt clutch
FR2527727A1 (en) * 1982-06-01 1983-12-02 Dayco Corp belt pulley and method of manufacturing thereof
US4697665A (en) * 1985-06-18 1987-10-06 Polaris Industries, Inc. Recreational vehicle with air cooled transmission
US6454040B1 (en) 1998-04-13 2002-09-24 Yamaha Hatsudoki Kabushiki Kaisha Transmission and cooling arrangement for all terrain vehicle
US20040195028A1 (en) * 2003-04-02 2004-10-07 Kazuhiko Izumi Drive system for off-road vehicle
US20040195018A1 (en) * 2003-04-02 2004-10-07 Akira Inui Floor arrangement for off-road vehicle
US20040195034A1 (en) * 2003-04-02 2004-10-07 Eiji Kato Transmission for off-road vehicle
US20040206567A1 (en) * 2003-04-02 2004-10-21 Eiji Kato Frame arrangement for off-road vehicle
US20040216945A1 (en) * 2003-04-02 2004-11-04 Akira Inui Steering system for off-road vehicle
US20040231900A1 (en) * 2003-04-02 2004-11-25 Norihiko Tanaka Air intake system for off-road vehicle
US20080015066A1 (en) * 2003-04-02 2008-01-17 Yamaha Hatsudoki Kabushiki Kaisha Off-road vehicle with air intake system
US7510199B2 (en) 2003-04-02 2009-03-31 Yamaha Hatsudoki Kabushiki Kaisha Off-road vehicle with wheel suspension
US20130090200A1 (en) * 2011-10-11 2013-04-11 Warrior Rig Ltd. Top drive

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US640108A (en) * 1899-06-17 1899-12-26 Henry M Dalzell Tubular crown-saw.
FR392961A (en) * 1908-08-05 1908-12-10 Joseph Magnat Sheave
US921628A (en) * 1905-06-10 1909-05-11 Western Electric Co Clutch mechanism.
US1385396A (en) * 1920-08-31 1921-07-26 Everett E Rayburn Pulley
US1388865A (en) * 1921-04-25 1921-08-30 Marathon Electric Mfg Co Ventilated pulley
US1443541A (en) * 1921-05-12 1923-01-30 Marathon Electric Mfg Co Ventilated pulley
US1711254A (en) * 1927-01-10 1929-04-30 Kelvinator Corp Refrigeration
US2603099A (en) * 1950-10-30 1952-07-15 Rasmus A Holst Pulley structure for belt conveyers

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US640108A (en) * 1899-06-17 1899-12-26 Henry M Dalzell Tubular crown-saw.
US921628A (en) * 1905-06-10 1909-05-11 Western Electric Co Clutch mechanism.
FR392961A (en) * 1908-08-05 1908-12-10 Joseph Magnat Sheave
US1385396A (en) * 1920-08-31 1921-07-26 Everett E Rayburn Pulley
US1388865A (en) * 1921-04-25 1921-08-30 Marathon Electric Mfg Co Ventilated pulley
US1443541A (en) * 1921-05-12 1923-01-30 Marathon Electric Mfg Co Ventilated pulley
US1711254A (en) * 1927-01-10 1929-04-30 Kelvinator Corp Refrigeration
US2603099A (en) * 1950-10-30 1952-07-15 Rasmus A Holst Pulley structure for belt conveyers

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2842974A (en) * 1957-02-12 1958-07-15 Motor Condensator Cie Cooling means for v-belt pulleys
US3943785A (en) * 1974-04-26 1976-03-16 Carlisle Corporation Air cooled belt clutch
FR2527727A1 (en) * 1982-06-01 1983-12-02 Dayco Corp belt pulley and method of manufacturing thereof
US4697665A (en) * 1985-06-18 1987-10-06 Polaris Industries, Inc. Recreational vehicle with air cooled transmission
US6454040B1 (en) 1998-04-13 2002-09-24 Yamaha Hatsudoki Kabushiki Kaisha Transmission and cooling arrangement for all terrain vehicle
US20080053727A1 (en) * 2003-04-02 2008-03-06 Yamaha Hatsudoki Kabushiki Kaisha Air intake system for off-road vehicle
US20040195018A1 (en) * 2003-04-02 2004-10-07 Akira Inui Floor arrangement for off-road vehicle
US20040195034A1 (en) * 2003-04-02 2004-10-07 Eiji Kato Transmission for off-road vehicle
US20040206567A1 (en) * 2003-04-02 2004-10-21 Eiji Kato Frame arrangement for off-road vehicle
US20040216945A1 (en) * 2003-04-02 2004-11-04 Akira Inui Steering system for off-road vehicle
US20040231900A1 (en) * 2003-04-02 2004-11-25 Norihiko Tanaka Air intake system for off-road vehicle
US7287619B2 (en) 2003-04-02 2007-10-30 Yamaha Hatsudoki Kabushiki Kaisha Air intake system for off-road vehicle
US20080015065A1 (en) * 2003-04-02 2008-01-17 Yamaha Hatsudoki Kabushiki Kaisha Transmission for off-road vehicle
US20080015066A1 (en) * 2003-04-02 2008-01-17 Yamaha Hatsudoki Kabushiki Kaisha Off-road vehicle with air intake system
US20040195028A1 (en) * 2003-04-02 2004-10-07 Kazuhiko Izumi Drive system for off-road vehicle
US7357211B2 (en) 2003-04-02 2008-04-15 Yamaha Hatsudoki Kabushiki Kaisha Steering system for off-road vehicle
US7367417B2 (en) 2003-04-02 2008-05-06 Yamaha Hatsudoki Kabushiki Kaisha Floor arrangement for off-road vehicle
US7438147B2 (en) 2003-04-02 2008-10-21 Yamaha Hatsudoki Kabushiki Kaisha Transmission for off-road vehicle
US7506712B2 (en) 2003-04-02 2009-03-24 Yamaha Hatsudoki Kabushiki Kaisha Off road vehicle with air intake system
US7510199B2 (en) 2003-04-02 2009-03-31 Yamaha Hatsudoki Kabushiki Kaisha Off-road vehicle with wheel suspension
US7650959B2 (en) 2003-04-02 2010-01-26 Yamaha Hatsudoki Kabushiki Kaisha Frame arrangement for off-road vehicle
US7690472B2 (en) 2003-04-02 2010-04-06 Yamaha Hatsudoki Kabushiki Kaisha Transmission for off-road vehicle
US7690462B2 (en) 2003-04-02 2010-04-06 Yamaha Hatsudoki Kabushiki Kaisha Off-road vehicle with air intake system
US7717206B2 (en) 2003-04-02 2010-05-18 Yamaha Hatsudoki Kabushiki Kaisha Air intake system for off-road vehicle
US20130090200A1 (en) * 2011-10-11 2013-04-11 Warrior Rig Ltd. Top drive
US9017194B2 (en) * 2011-10-11 2015-04-28 Warrior Rig Ltd. Top drive
US20150204141A1 (en) * 2011-10-11 2015-07-23 Warrior Rig Ltd. Top drive
US9551185B2 (en) * 2011-10-11 2017-01-24 Warrior Energy Technologies Limited Top drive

Similar Documents

Publication Publication Date Title
US3581717A (en) Chain saw
US2458006A (en) Bidirectional blower
US5896917A (en) Active heat sink structure with flow augmenting rings and method for removing heat
US2155631A (en) Blower
US3002595A (en) Fluid coupling device
US2401826A (en) Turbine
US2272985A (en) Motor mounting for vacuum cleaners
US2789021A (en) Bearing for contra-rotating shafts
US2765881A (en) Brake rotor
US2594555A (en) Vibration damper
US2452274A (en) Fan having auxiliary cutoff
US2511479A (en) Cooling means for reduction gearing
US2915167A (en) Motor driven conveyor roller
US2385070A (en) Fan
US4509933A (en) Belt pulley and method of making the same
US3678708A (en) Flexible couplings
US2453524A (en) Centrifugal compressor
US2378070A (en) Cooling means for abrasive cutters
US2937803A (en) Air flow cooling apparatus and drive therefor
US3407317A (en) Ventilation system for rotating electrical machinery
US2115763A (en) Clutch
US2991004A (en) One-piece radial flow air moving device
USRE25569E (en) Multistage fan
US5191247A (en) Substantially noiseless fan for internally cooling electric motors
US2774895A (en) Eddy current brake