US414545A - Pawl-and-ratchet mechanism - Google Patents
Pawl-and-ratchet mechanism Download PDFInfo
- Publication number
- US414545A US414545A US414545DA US414545A US 414545 A US414545 A US 414545A US 414545D A US414545D A US 414545DA US 414545 A US414545 A US 414545A
- Authority
- US
- United States
- Prior art keywords
- pawl
- recesses
- ratchet
- ratchet mechanism
- pawls
- 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
Links
- 238000010276 construction Methods 0.000 description 4
- 230000002093 peripheral Effects 0.000 description 4
- 101700001674 LEVI Proteins 0.000 description 2
- 210000002832 Shoulder Anatomy 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000001105 regulatory Effects 0.000 description 2
Images
Classifications
-
- 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
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
- F16H63/34—Locking or disabling mechanisms
- F16H63/3416—Parking lock mechanisms or brakes in the transmission
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D41/00—Freewheels or freewheel clutches
- F16D41/12—Freewheels or freewheel clutches with hinged pawl co-operating with teeth, cogs, or the like
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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
- Y10T74/21—Elements
- Y10T74/2133—Pawls and ratchets
- Y10T74/2136—Pivoted pawls
Definitions
- My invention relates to pawl-and-ratchet mechanism; and it consists in the construction and arrangements of the parts thereof,-
- the object of my invention is to provide a pawl-andaatchet mechanism whereby extra power may be connected to shafting, the parts of the said mechanism being simple and effective in their construction and operation, strong and durable, easily mounted, and readily understood.
- Figure 1 is a vertical sectional view of my improved pawl-andratchet mechanism.
- Fig. 2 is a perspective view of the parts thereof removed.
- Fig. 3 is a side elevation of a non-continuous line of shafting, showing the application of my improved pawl-and-ratchet mechanism, which is illustrated in section.
- A indicates the outer disk or shell of my improvement, which is formed with a central substantially-circular recess A, having a series of four recesses at extending into the shell A from the periphery of said central recess A.
- the one wall of each of the recesses Ct is in alignment with the four radii of the vertical and horizontal diameters of the shell A, the said recesses a being formed at right angles to said radii, and project backward therefrom,
- the Walls of the recesses a, farthest away from the said radii are curved and receive the rear curved ends of fiat slightly wedge-shaped pawls B, which are pivotally mounted at this point.
- Vertical recesses a are formed adjacent to the front walls of the recesses aand merge into the latter.
- a coiled springs S are mounted, which bear against the flat pawls B at their lower ends and against washerss at their upper ends.
- the said washers s are in adjustable engagcment with the lower ends of setscrews S, which project outward from the outer periphery of the shell A. The tension of the springs S against the pawls B may thus be regulated at will and as necessary.
- a ratchet-wheel C- is adapted to be inserted.
- This ratchetwheel is constructed substantially circular and of the same diameter as the said recess A.
- Four angular shoulders are constructed in the periphery of said ratcl'iet-wheel to form.
- four teeth 0'' which are adapted to be engaged by the ends of the four pawls B.
- Suitable setcollars C and A are used with the ratchet wheel 0 and with the closed side of the casing A, which are secured to the opposing ends of the shafts with which my improvement is used. As shown in Fig.
- the said ratchetwheel 0 fits snugly within the recess A of the shell A, and is adapted to be readily slipped in the said recess A when the pawland-ratchet mechanism is moved in connection.
- the ratchet-wheel C is turned in the direction of arrow 1, the pawls l3 ride over the same, dropping into the teeth formed on the said ratchet'wheel. If an effort is made to move the ratchet-wheel in the direction of the arrow 2, such effort will be repelled by means of the engagement of the teeth G by the pawls B, which are held down against the teeth by the action of the springs S.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pivots And Pivotal Connections (AREA)
Description
(No Model.) 2 SheetsSheet 1.
L. J JONES. PAWL AND RATOHET MECHANISM.
No. 414,545. Patent-ed Nov. 5, 1889.
WI TN E 881 38 (No Model.) 2 SheetsSheet 2. L. J. JONES. PAWL AND RATCHET MEGHANISM.
Patented Nov. 5
.dttarney WITNESSES u PETERS. Prowl-MM. Wuh'mgtm u c.
a as shown.
UNITED STATES PATENT tries,
LEVI J. JONES, OF DALTON, llllASSACllUSETlTlS.
PAWL-AN D-VRATCH ET M ECHANISM.
SPECIFICATION forming" part of Letters Patent No. 414,545, dated November 5, 1889. Application filed October 15, 1887- Serial No. 252 A641 (No model.)
To aZZ wit-0122, it may concern.-
Beit known that I, LEVI J. JONES, a citizen of the United States of America, residing at Dalton, in the county of Berkshire and State of Massachusetts, have invented certain new and useful Improvements in Pawl-and- Ratchet Mechanism; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification.
My invention relates to pawl-and-ratchet mechanism; and it consists in the construction and arrangements of the parts thereof,-
which will be more fully herein after described, and pointed out in the claim.
The object of my invention is to provide a pawl-andaatchet mechanism whereby extra power may be connected to shafting, the parts of the said mechanism being simple and effective in their construction and operation, strong and durable, easily mounted, and readily understood.
In the accompanying drawings, wherein like letters of reference indicate similar parts in the several views, Figure 1 is a vertical sectional view of my improved pawl-andratchet mechanism. Fig. 2 is a perspective view of the parts thereof removed. Fig. 3 is a side elevation of a non-continuous line of shafting, showing the application of my improved pawl-and-ratchet mechanism, which is illustrated in section.
A indicates the outer disk or shell of my improvement, which is formed with a central substantially-circular recess A, having a series of four recesses at extending into the shell A from the periphery of said central recess A. The one wall of each of the recesses Ct is in alignment with the four radii of the vertical and horizontal diameters of the shell A, the said recesses a being formed at right angles to said radii, and project backward therefrom,
.The Walls of the recesses a, farthest away from the said radii are curved and receive the rear curved ends of fiat slightly wedge-shaped pawls B, which are pivotally mounted at this point. Vertical recesses a are formed adjacent to the front walls of the recesses aand merge into the latter. Within the recesses a coiled springs S are mounted, which bear against the flat pawls B at their lower ends and against washerss at their upper ends. The said washers s are in adjustable engagcment with the lower ends of setscrews S, which project outward from the outer periphery of the shell A. The tension of the springs S against the pawls B may thus be regulated at will and as necessary.
lVithin the recess A a ratchet-wheel C- is adapted to be inserted. This ratchetwheel is constructed substantially circular and of the same diameter as the said recess A. Four angular shoulders are constructed in the periphery of said ratcl'iet-wheel to form. four teeth 0'', which are adapted to be engaged by the ends of the four pawls B. Suitable setcollars C and A are used with the ratchet wheel 0 and with the closed side of the casing A, which are secured to the opposing ends of the shafts with which my improvement is used. As shown in Fig. 1, the said ratchetwheel 0 fits snugly within the recess A of the shell A, and is adapted to be readily slipped in the said recess A when the pawland-ratchet mechanism is moved in connection. \Vhen the ratchet-wheel C is turned in the direction of arrow 1, the pawls l3 ride over the same, dropping into the teeth formed on the said ratchet'wheel. If an effort is made to move the ratchet-wheel in the direction of the arrow 2, such effort will be repelled by means of the engagement of the teeth G by the pawls B, which are held down against the teeth by the action of the springs S. It will be observed that resistance of movement of the ratchet-wheel in the direction of the arrow 2 is applied from four points only. These points of resistance intersect the vertical and horizontal diameters of the wheel C, having a thickness of metal between the same capable of overcoming the strain brought to bear thereagainst. It will thus be seen that a strong and durable clutch is provided.
The utility, adaptability, and advantages of my improved form of pawl-and-ratchet mechanism being obviously apparent, it is unnecessary to further enlarge upon the same herein.
Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is a The combination of the casing A, having a central circular chamber, the outer peripheral portion of said casing provided on its inner wall with tangentially extending pawl recesses and substantially-radial recesses intersecting the same, the pawls pivoted in said pawl recesses, adjusting screws passing through said peripheral portion to intersect the radial recesses therein, a plate located at the end of each screw, and a spring interposcd'between the adjacent pawl and plate,
and the block 0, fitting snugly within the chamber and having tangential recesses corresponding in number to that of the pawls, the relative arrangement of the casing and block 0 being such that intermediateconcentric bearing portions are formed between the pawl-recesses of both, substantially as described.
In testimony whereofI aifix my signaturein presence of two Witnesses.
LEVI J. JONES. Vitnesses:
HOMER H. BICKNELL, W. W. Scormpn.
Publications (1)
Publication Number | Publication Date |
---|---|
US414545A true US414545A (en) | 1889-11-05 |
Family
ID=2483475
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US414545D Expired - Lifetime US414545A (en) | Pawl-and-ratchet mechanism |
Country Status (1)
Country | Link |
---|---|
US (1) | US414545A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6354951B1 (en) * | 1999-09-09 | 2002-03-12 | Gkn Walterscheid Gmbh | Drive assembly with a setting device |
US20120111686A1 (en) * | 2010-11-05 | 2012-05-10 | Peterson Jody A | Pawl stop for use in ratchet and pawl style clutch |
US20160091035A1 (en) * | 2014-09-30 | 2016-03-31 | Schaeffler Technologies AG & Co. KG | Rocker one-way clutch with cutout to locate a spring and stator incorporating the same |
US9897010B2 (en) * | 2015-03-30 | 2018-02-20 | Honeywell International Inc. | Air turbine starter systems including gearbox-integrated clutch modules and gas turbine engines employing the same |
-
0
- US US414545D patent/US414545A/en not_active Expired - Lifetime
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6354951B1 (en) * | 1999-09-09 | 2002-03-12 | Gkn Walterscheid Gmbh | Drive assembly with a setting device |
US20120111686A1 (en) * | 2010-11-05 | 2012-05-10 | Peterson Jody A | Pawl stop for use in ratchet and pawl style clutch |
US8839927B2 (en) * | 2010-11-05 | 2014-09-23 | Hamilton Sundstrand Corporation | Pawl stop for use in ratchet and pawl style clutch |
US20160091035A1 (en) * | 2014-09-30 | 2016-03-31 | Schaeffler Technologies AG & Co. KG | Rocker one-way clutch with cutout to locate a spring and stator incorporating the same |
US10094433B2 (en) * | 2014-09-30 | 2018-10-09 | Schaeffler Technologies AG & Co. KG | Rocker one-way clutch with cutout to locate a spring and stator incorporating the same |
US10677295B2 (en) | 2014-09-30 | 2020-06-09 | Schaeffler Technologies AG & Co. KG | Rocker one-way clutch with cutout to locate a spring and stator incorporating the same |
US9897010B2 (en) * | 2015-03-30 | 2018-02-20 | Honeywell International Inc. | Air turbine starter systems including gearbox-integrated clutch modules and gas turbine engines employing the same |
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