US636645A - Housing for ratchet-wheels. - Google Patents
Housing for ratchet-wheels. Download PDFInfo
- Publication number
- US636645A US636645A US65799997A US1897657999A US636645A US 636645 A US636645 A US 636645A US 65799997 A US65799997 A US 65799997A US 1897657999 A US1897657999 A US 1897657999A US 636645 A US636645 A US 636645A
- Authority
- US
- United States
- Prior art keywords
- housing
- ratchet
- wheels
- side walls
- wheel
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D3/00—Portable or mobile lifting or hauling appliances
- B66D3/04—Pulley blocks or like devices in which force is applied to a rope, cable, or chain which passes over one or more pulleys, e.g. to obtain mechanical advantage
-
- 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
-
- 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
- Y10T74/2137—Single tooth
Definitions
- ATTORNEY m NpRRIS PEI'EflS co. mmoumoq WASHINGTON, n c,
- This invention relates to an improved housing for ratchet-wheels of windlasses such as are used for oyster-dredges; and it consists of the parts hereinafter described and claimed.
- Figure 1 is an end elevation of a Windlass.
- Fig. 2 is a vertical section of the improved housing inclosing the ratchet-wheel and pawls.
- Fig. 3 is a perspective view of the improved housing.
- the letterA designates the frame, and B the shaft on which the winding drum or spool C is fixed.
- a ratchet-wheel D is on the shaft, and two pawls e f engage the ratchet and prevent reverse movement.
- One or both ends of the shaft has a square end 9 to receive a crank-arm H, (indicated by broken lines.)
- This housing consists of two parallel arch-shaped side walls j, having rounded ends It. These walls are spaced apart and are connected together at the rounded ends by curved end walls Z, which unite said two sidewalls.
- end wallsl extend upward for a distance and have an upper edge j, and the lower portion of each of the two end walls curves inward, as at j toward each other.
- An open top 'm is thus left between the upper edges j of the two end walls and the arched part of said side walls j.
- Each end of the housing has a hole at to receive a bolt 47/, which serves to secure the housing to the frame A, and each bolt also serves as a pivot for one of the pawls.
- the side walls project higher than the ratchetwheel, and the uppermost edge j of each end wall prevents the pawl adjacent it from turning backward and entirely disengaging from the ratchet-wheel, and the lower curved part j takes under the pivoted end of the pawl and prevents anything from passing upward and thereby disengaging the pawl.
- a housing for ratchet-Wheels having in combination two parallel arched side walls spaced apart and connected at their ends by end walls thelower ends of which latter curve and take under the ends of the side walls and the upper parts of which extend upward, each having an upper edge, 7", leaving a top opening between said upper edges and said side walls, as set forth.
- a Windlass In a Windlass the combination of a ratchet wheel; a housing inclosing said ratchet-wheel and having two parallel arched side walls connected together at the ends by end walls, an open top being left between the end walls and said side walls; a pawl within the housing at each side of the ratchet-wheel; and two bolts-one securing each end of the housing and also serving as a'pivot for one of the pawls, substantially as described.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Buckles (AREA)
Description
No. 636,645. Pat ented Nov. 7, I899. R. H. nouauzmv.
HOUSING FOR RATGHET WHEELS.
(Application filed Nov. 10, I897.)
WITNEEEES INA/ENTER 756% 2 W rM/v a. GM. y 6
ATTORNEY m: NpRRIS PEI'EflS co. mmoumoq WASHINGTON, n c,
NITED STATES ATENT FFICE.
HOUSING FOR RATCHET-WHEELS.
SPECIFICATION forming part of Letters Patent No. 636,645, dated November 7, 1899.
Application filed November 10, 1897. Serial No- 657,999. (No model.)
To aZZ whont it may concern.-
Be it known that I, RICHARD H. DOUGH- ERTY, a citizen of the United States, residing at Baltimore, in the State of Maryland, have invented certain new and useful Improvements in Housings for Ratchet-Wheels, of which the following is a specification.
This invention relates to an improved housing for ratchet-wheels of windlasses such as are used for oyster-dredges; and it consists of the parts hereinafter described and claimed.
In the accompanying drawings, Figure 1 is an end elevation of a Windlass. Fig. 2 is a vertical section of the improved housing inclosing the ratchet-wheel and pawls. Fig. 3 is a perspective view of the improved housing.
The letterA designates the frame, and B the shaft on which the winding drum or spool C is fixed. A ratchet-wheel D is on the shaft, and two pawls e f engage the ratchet and prevent reverse movement. One or both ends of the shaft, has a square end 9 to receive a crank-arm H, (indicated by broken lines.)
It is desirable to provide a housing for inclosing the ratchet-wheel and the pawls and of such construction that access may be immediately had to said parts at any time, and which will exclude the clothing of the operator from accidentally catching in said parts and prevent the pawls from turning backward and wholly disengaging from the ratchet and throwing the crank back, which sometimes results in serious injury to the operator. I have accordingly provided the housing I shown in the drawings. This housing consists of two parallel arch-shaped side walls j, having rounded ends It. These walls are spaced apart and are connected together at the rounded ends by curved end walls Z, which unite said two sidewalls. These end wallsl extend upward for a distance and have an upper edge j, and the lower portion of each of the two end walls curves inward, as at j toward each other. An open top 'm is thus left between the upper edges j of the two end walls and the arched part of said side walls j. Each end of the housing has a hole at to receive a bolt 47/, which serves to secure the housing to the frame A, and each bolt also serves as a pivot for one of the pawls. The side walls project higher than the ratchetwheel, and the uppermost edge j of each end wall prevents the pawl adjacent it from turning backward and entirely disengaging from the ratchet-wheel, and the lower curved part j takes under the pivoted end of the pawl and prevents anything from passing upward and thereby disengaging the pawl.
By using this housing device there will be no liability of the crank being thrown backward and injuring the operator.
Having thus described myinvention, what I claim is- 1. A housing for ratchet-Wheels having in combination two parallel arched side walls spaced apart and connected at their ends by end walls thelower ends of which latter curve and take under the ends of the side walls and the upper parts of which extend upward, each having an upper edge, 7", leaving a top opening between said upper edges and said side walls, as set forth.
2. In a Windlass the combination of a ratchet wheel; a housing inclosing said ratchet-wheel and having two parallel arched side walls connected together at the ends by end walls, an open top being left between the end walls and said side walls; a pawl within the housing at each side of the ratchet-wheel; and two bolts-one securing each end of the housing and also serving as a'pivot for one of the pawls, substantially as described.
In testimony whereof I affix my signature in the presence of two witnesses.
RICHARD H. DOUGHERTY.
Witnesses:
OHAPIN A. FERGUSON, CHAS. B. MANN.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US65799997A US636645A (en) | 1897-11-10 | 1897-11-10 | Housing for ratchet-wheels. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US65799997A US636645A (en) | 1897-11-10 | 1897-11-10 | Housing for ratchet-wheels. |
Publications (1)
Publication Number | Publication Date |
---|---|
US636645A true US636645A (en) | 1899-11-07 |
Family
ID=2705235
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US65799997A Expired - Lifetime US636645A (en) | 1897-11-10 | 1897-11-10 | Housing for ratchet-wheels. |
Country Status (1)
Country | Link |
---|---|
US (1) | US636645A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030221801A1 (en) * | 2002-03-19 | 2003-12-04 | Canimex Inc. | Safety braking device for garage doors and the like |
US20060185800A1 (en) * | 2002-03-19 | 2006-08-24 | Canimex Inc. | Brake device for garage doors and the like, and door assembly including the same |
US20070204515A1 (en) * | 2006-02-06 | 2007-09-06 | Canimex Inc. | Brake device for garage doors and the like, kit for assembling the same, and door assembly provided with the brake device |
-
1897
- 1897-11-10 US US65799997A patent/US636645A/en not_active Expired - Lifetime
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030221801A1 (en) * | 2002-03-19 | 2003-12-04 | Canimex Inc. | Safety braking device for garage doors and the like |
US6986378B2 (en) | 2002-03-19 | 2006-01-17 | Canimex Inc. | Braking device for garage doors and the like |
US20060185800A1 (en) * | 2002-03-19 | 2006-08-24 | Canimex Inc. | Brake device for garage doors and the like, and door assembly including the same |
US7543625B2 (en) | 2002-03-19 | 2009-06-09 | Canimex Inc. | Brake device for garage doors and the like, and door assembly including the same |
US20070204515A1 (en) * | 2006-02-06 | 2007-09-06 | Canimex Inc. | Brake device for garage doors and the like, kit for assembling the same, and door assembly provided with the brake device |
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