US1753485A - Dead-center device - Google Patents
Dead-center device Download PDFInfo
- Publication number
- US1753485A US1753485A US196729A US19672927A US1753485A US 1753485 A US1753485 A US 1753485A US 196729 A US196729 A US 196729A US 19672927 A US19672927 A US 19672927A US 1753485 A US1753485 A US 1753485A
- Authority
- US
- United States
- Prior art keywords
- piston
- dead
- cylinder
- crank
- rocker arm
- 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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Classifications
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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
- F16H21/00—Gearings comprising primarily only links or levers, with or without slides
- F16H21/10—Gearings comprising primarily only links or levers, with or without slides all movement being in, or parallel to, a single plane
- F16H21/16—Gearings comprising primarily only links or levers, with or without slides all movement being in, or parallel to, a single plane for interconverting rotary motion and reciprocating motion
- F16H21/18—Crank gearings; Eccentric gearings
- F16H21/38—Crank gearings; Eccentric gearings with means for temporary energy accumulation, e.g. to overcome dead-centre positions
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- 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
- Y10T74/18—Mechanical movements
- Y10T74/18056—Rotary to or from reciprocating or oscillating
- Y10T74/18144—Overcoming dead center
Definitions
- This invention relates to an improved me chanical movement designed to be employed for converting reciprocating movement into movement of rotation, the object of the invention being to provide an assemblage of mechanical elements which will co-operate to overcome dead centers.
- the invention is applicable for use in connection with steam engines, gas engines, windmills, hand operated devices, or in any rela Figure 3 is a modification of the device.
- the reference numeral 1 denotes a suitable fixed base or support
- the numeral 2 denotes a wheel rotating about a fixed center 4
- the numeral 15 denotes a fixed cylinder having a reciprocating piston 14 pivoted with a piston rod 13.
- a connecting rod 12 Pivotally connected to the piston rod 13 as at 11 is a connecting rod 12, which at its opposite end is pivoted, as at 10, to the ver-- tical arm 8 of an angle crank 5, the horizontal arm of which is connected toa fly Wheel 2 by means of a crank pin 3.
- the angle crank is pivoted at 6 to an oscillating rocker arm 7 which is pivoted as at 9 to the stationary support 1, as shown.
- the pressure cylinder 21 is provided with a piston 20 having a piston rod 19'which is connected at 18 to the connecting rod 16.
- This connectin rod'16 is connected at 6 to the rocker arm
- Suitable valves are connected to the cylinder 21 as at 22 and 23 which control the pressure supply, and permit compressed fluid to enter at will to chamber 24, or 25, of said cylinder 21, depending on the direction of rotation of the wheel 2.
- the rocker arm 7 is adapted to swing to and fro as a pendulum, oscillating about a fixed pivot and carries with it the oscillating pivot 6 which swings in the arc of a circle indicated by the arrows.
- the angle crank could be a T crank andthe power applied below the .pivot 6 and a reverse motion will be the result from' the direction as shown in Figure 1 of this drawing.
- any means may be employed which will produce a pressure upon the oscillating pivot on rocker arm 7, which pressure acts in cooperation with arm of the crank which is attached to the Wheel or rotary element.
- a device for overcoming dead centers comprising a rocker arm oscillating about a fixed pivot, an angle crank piv-otally connected to" the oscillating end of.” the rocker arm, one arm of said crank being connected to a rotary element, and the other-adaptedto be operated from avsuitable-source of power, and means acting to produce pres sure upon the oscillating pivot of said'crank,
- a device for overcoming dead centers a rocker arm pivotally mounted at one end to a suitable support; an angle crank" pivotally m-ounted on'theoscillating end of said rocker arm, one'end of: the angle crank being connecte'd'to a rotaryielement, while the other end is connected with a suitable source-of power, a connectingjrod p ivotally connected atone end to the oscillatingendofthe' rocker arm, a' cylinder, a piston in said cylinder, a pressure port at each end of the cylinder, said piston being "pivotally connectedto the other end of said connectingrod.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Description
April 8, 1930. J. H. 'II'OWERS 1,753,485
DEAD CENTER DEVICE Original Filed May 15. 1926 11v ENTOR. C 2/ M BY 6 ATTORNEY}! Patented Apr. 8, 1930 UNITED STATES JOHN H. TOWERS, 0F BALSA M LAKE, WISCONSIN DEAD-CENTER :onvicn Original application filed May 15, 1926, Serial No. 109,401. Divided and this application filed June 6,
' 1927. Serial No. 196,729.
This is a division of my application filed May 15, 1926, Serial No. 109,401.
This invention relates to an improved me chanical movement designed to be employed for converting reciprocating movement into movement of rotation, the object of the invention being to provide an assemblage of mechanical elements which will co-operate to overcome dead centers. The invention is applicable for use in connection with steam engines, gas engines, windmills, hand operated devices, or in any rela Figure 3 is a modification of the device.
In the drawings the reference numeral 1 denotes a suitable fixed base or support, the numeral 2 denotes a wheel rotating about a fixed center 4 and the numeral 15 denotes a fixed cylinder having a reciprocating piston 14 pivoted with a piston rod 13. p
It is desired to transform the reciprocatory movement of the piston rod 13 into rotary movement of the wheel 2 by suitable assemblage of mechanical elements which are so related that they eflectively overcome dead center.
Pivotally connected to the piston rod 13 as at 11 is a connecting rod 12, which at its opposite end is pivoted, as at 10, to the ver-- tical arm 8 of an angle crank 5, the horizontal arm of which is connected toa fly Wheel 2 by means of a crank pin 3. The angle crank is pivoted at 6 to an oscillating rocker arm 7 which is pivoted as at 9 to the stationary support 1, as shown. The pressure cylinder 21 is provided with a piston 20 having a piston rod 19'which is connected at 18 to the connecting rod 16. This connectin rod'16 is connected at 6 to the rocker arm Suitable valves are connected to the cylinder 21 as at 22 and 23 which control the pressure supply, and permit compressed fluid to enter at will to chamber 24, or 25, of said cylinder 21, depending on the direction of rotation of the wheel 2.
The rocker arm 7 is adapted to swing to and fro as a pendulum, oscillating about a fixed pivot and carries with it the oscillating pivot 6 which swings in the arc of a circle indicated by the arrows.
Assuming now that the mechanism is in a position shown in the full lines in Figure 1, and that compressed fluid enters into pressurecylinder 21 in thechamber 253.1101 remains a constant pressure as long as the Wheel is to rotate in this direction.
Compressedfluidis allowed to enter into cylinder 15 in chamber 27, whereupon the piston 14 is moved to the right in the direction of the arrow. When the angle crank has reached the position indicated in the full lines or what would be a dead center position, the pressure still acting on piston 14 throws the pivot 3 past the dead center, at this mo-- ment, due to the downward pressure on piston 20 and gives the wheel 2 continuous motion, the same thing happens at the opposite dead center, and the wheel continues to rotate in a counter clockwise direction.
Obviously, if the force operating from the piston 20, upon the pivot 6 or any other point on the rocker arm whether extended or not past pivot 6, were reversed as for instance; if the valve 23 is opened to allow pressure to enter chamber'24 of cylinder 21 (the pres sure, of course, is allowed to exhaust from chamber 25) in cylinder 21 the direction of rotation of the wheel 2 will be reversed but the action of overcoming dead centers is the same.
Many changes may be restorted to without departing from the spirit of the invention.
Forexample, the angle crank could be a T crank andthe power applied below the .pivot 6 and a reverse motion will be the result from' the direction as shown in Figure 1 of this drawing. Likewise, in place of the compression cylinder, any means may be employed which will produce a pressure upon the oscillating pivot on rocker arm 7, which pressure acts in cooperation with arm of the crank which is attached to the Wheel or rotary element.
What I claim is:
1. A device for overcoming dead centers comprising a rocker arm oscillating about a fixed pivot, an angle crank piv-otally connected to" the oscillating end of." the rocker arm, one arm of said crank being connected to a rotary element, and the other-adaptedto be operated from avsuitable-source of power, and means acting to produce pres sure upon the oscillating pivot of said'crank,
and means for reversing at will the direction of force 'o'f saldzmeans. 1
2. A device for overcoming dead centers,
comprising a rocker arm, an angle crank pivotally mounted on the oscillating end of saidrocker' arm, a connecting rod pivota-lly connected at one end with the oscillatingcnd of said rocker'arm, a piston pivotally connecteclito the other end of said connecting rod, and a: rotary element connected-with the other end of the'angle crank.
8., A device for overcoming dead centers, a rocker arm pivotally mounted at one end to a suitable support; an angle crank" pivotally m-ounted on'theoscillating end of said rocker arm, one'end of: the angle crank being connecte'd'to a rotaryielement, while the other end is connected with a suitable source-of power, a connectingjrod p ivotally connected atone end to the oscillatingendofthe' rocker arm, a' cylinder, a piston in said cylinder, a pressure port at each end of the cylinder, said piston being "pivotally connectedto the other end of said connectingrod.
In'testimony whereof I 'afiix my signature. 7
JOHN H. TOWERS;
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US196729A US1753485A (en) | 1926-05-15 | 1927-06-06 | Dead-center device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US109401A US1636395A (en) | 1926-05-15 | 1926-05-15 | Dead-center device |
US196729A US1753485A (en) | 1926-05-15 | 1927-06-06 | Dead-center device |
Publications (1)
Publication Number | Publication Date |
---|---|
US1753485A true US1753485A (en) | 1930-04-08 |
Family
ID=26806935
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US196729A Expired - Lifetime US1753485A (en) | 1926-05-15 | 1927-06-06 | Dead-center device |
Country Status (1)
Country | Link |
---|---|
US (1) | US1753485A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2951380A (en) * | 1957-06-18 | 1960-09-06 | Creusot Forges Ateliers | Device for reversing the blades of a turbine |
DE3024565A1 (en) * | 1980-06-28 | 1982-01-21 | Grünzweig + Hartmann und Glasfaser AG, 6700 Ludwigshafen | Turntable indexed by double acting hydraulic ram - has second ram to rotate it past dead centre positions of first ram |
DE102004040841A1 (en) * | 2004-08-23 | 2006-03-02 | Helmut Obieglo | Stroke transmission for internal combustion engine has lower piston rod and extension that are angled relative to each other |
CN106958503A (en) * | 2016-01-12 | 2017-07-18 | 通用电气再生能源技术公司 | For making the reverse device of the blade of rotor unit |
-
1927
- 1927-06-06 US US196729A patent/US1753485A/en not_active Expired - Lifetime
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2951380A (en) * | 1957-06-18 | 1960-09-06 | Creusot Forges Ateliers | Device for reversing the blades of a turbine |
DE3024565A1 (en) * | 1980-06-28 | 1982-01-21 | Grünzweig + Hartmann und Glasfaser AG, 6700 Ludwigshafen | Turntable indexed by double acting hydraulic ram - has second ram to rotate it past dead centre positions of first ram |
DE102004040841A1 (en) * | 2004-08-23 | 2006-03-02 | Helmut Obieglo | Stroke transmission for internal combustion engine has lower piston rod and extension that are angled relative to each other |
CN106958503A (en) * | 2016-01-12 | 2017-07-18 | 通用电气再生能源技术公司 | For making the reverse device of the blade of rotor unit |
EP3193006A1 (en) * | 2016-01-12 | 2017-07-19 | GE Renewable Technologies | Device for reversing a blade of a runner unit |
KR20170084700A (en) * | 2016-01-12 | 2017-07-20 | 지이 르네와블 테크놀로지즈 | Device for reversing a blade of a runner unit |
US10598144B2 (en) | 2016-01-12 | 2020-03-24 | Ge Renewable Technologies | Device for reversing a blade of a runner unit |
RU2730212C2 (en) * | 2016-01-12 | 2020-08-19 | ДжиИ Риньюэбл Текнолоджиз | Device for turning of rotor unit blade and rotor assembly |
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