US434054A - Tewell - Google Patents

Tewell Download PDF

Info

Publication number
US434054A
US434054A US434054DA US434054A US 434054 A US434054 A US 434054A US 434054D A US434054D A US 434054DA US 434054 A US434054 A US 434054A
Authority
US
United States
Prior art keywords
pawl
windlass
head
tewell
yewell
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
Publication date
Application granted granted Critical
Publication of US434054A publication Critical patent/US434054A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • 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
    • Y10T74/15—Intermittent grip type mechanical movement
    • Y10T74/1558—Grip units and features
    • Y10T74/1577—Gripper mountings, lever
    • 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
    • Y10T74/214—Multiple tooth

Definitions

  • the object of this invention is to prevent unequal wear of the ratchet-teeth and the pawl of a Windlass, caused by the free end of the pawl moving outwardly from the flange of the head, or toward the edge of the ratchet-disk.
  • the said invention consists in providing the pawl with an extension beyond its hub or part thereof through which the pivotal bolt passes, the said extension bearing against the side of the flange of the head, as will hereinafter fully appear.
  • Figure 1 is an exterior front View of the ll1'l proved Windlass, and .
  • Fig. 2 an end View of the same.
  • Fig. 3 is a cross-section of- Fig. 2, taken on the dotted line w as.
  • Fig. 4 illustrates a modification in the construction of the invention, as hereinafter described.
  • A is the shaft of the Windlass, confined in boxes a, secured to the bits B.
  • Windlass-heads which are either secured to or rest loosely on the shaft A.
  • the heads are each provided with two toothed disks 1) and a, the former situated at the inner and the latter at the outer end of the head.
  • the pawls which engage with the ratchetdisks 1) and c are respectively denoted by d and F.
  • G G are sockets into which the handspikes for turning the heads are inserted, and to which the pawls F are pivoted.
  • the pawls F have each an extension or tail f, leading froin the hub g, and the inner surface of this tail bears against the face of the head and prevents the pawl assuming an angular position with reference to it, as will be readily understood.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Multiple-Way Valves (AREA)

Description

(No Model.)
J. W. YEWELL SHIPS WINDLASS.
No. 434,054. Patented Aug. 12, 1890.
Fig l.
q a. I 5% Z do I c A c i oi i C; L b
UNITED STATES PATENT OFFICE.
JOHN WASHINGTON YEWELL, OF BALTIMORE, MARYLAND.
SHIPS WINDLASS.
SPECIFICATION forming part of Letters Patent No. 434,054, dated August 12, 1890.
Application filed November 16, 1889- Serial No. 330,547. (No model.)
To all whom it may concern:
Be it known that I, JOHN WVASHINGTON YEWELL, of the city of Baltimore, and State of Maryland, have invented certain Improveinent-sin Ships Windlasses, of which the following is a specification.
The object of this invention is to prevent unequal wear of the ratchet-teeth and the pawl of a Windlass, caused by the free end of the pawl moving outwardly from the flange of the head, or toward the edge of the ratchet-disk.
The said invention consists in providing the pawl with an extension beyond its hub or part thereof through which the pivotal bolt passes, the said extension bearing against the side of the flange of the head, as will hereinafter fully appear.
In the drawings forming a part hereof, Figure 1 is an exterior front View of the ll1'l proved Windlass, and .Fig. 2 an end View of the same. Fig. 3 is a cross-section of- Fig. 2, taken on the dotted line w as. Fig. 4 illustrates a modification in the construction of the invention, as hereinafter described.
Similar letters of reference indicate similar parts in all the figures.
Referring to Figs. 1, 2, and 3, A is the shaft of the Windlass, confined in boxes a, secured to the bits B.
O O are the Windlass-heads, which are either secured to or rest loosely on the shaft A. The heads are each provided with two toothed disks 1) and a, the former situated at the inner and the latter at the outer end of the head.
The pawls which engage with the ratchetdisks 1) and c are respectively denoted by d and F.
G G are sockets into which the handspikes for turning the heads are inserted, and to which the pawls F are pivoted. The pawls F have each an extension or tail f, leading froin the hub g, and the inner surface of this tail bears against the face of the head and prevents the pawl assuming an angular position with reference to it, as will be readily understood.
I do not limit myself to the construction of the tail-piece of the pawl F, which is-shown, as it may extend nearly or quite around the ratchet-disk and be united to the free end of the pawl, as shown in Fig. 4.
WM. (1. HOWARD, DANL. FISHER
US434054D Tewell Expired - Lifetime US434054A (en)

Publications (1)

Publication Number Publication Date
US434054A true US434054A (en) 1890-08-12

Family

ID=2502958

Family Applications (1)

Application Number Title Priority Date Filing Date
US434054D Expired - Lifetime US434054A (en) Tewell

Country Status (1)

Country Link
US (1) US434054A (en)

Similar Documents

Publication Publication Date Title
US951800A (en) Nut-lock.
US434054A (en) Tewell
US796366A (en) Snatch-block.
US1030146A (en) Nut-lock.
US443117A (en) Nut for carriage-axles
US1437871A (en) Rail bolt
US749588A (en) Arthur william smith
US1110335A (en) Nut-lock.
US1261638A (en) Shovel.
US888420A (en) Ratchet-wrench.
US1235864A (en) Lock-nut.
US972451A (en) Back-motion clutch for hoists.
US988375A (en) Locking-nut.
US1201248A (en) Nut-lock.
US234594A (en) Means for raising and lowering ships rudders
US915642A (en) Nut-lock.
US271372A (en) Snap-hook
US290638A (en) James e
US225923A (en) Line-fastener
US630986A (en) Wrench.
US501345A (en) Nut-lock
US1120495A (en) Holding means for crank-carrying shafts.
US426224A (en) Carriage-wrench
US355271A (en) Oyster-dredge windlass
US463521A (en) Nut and bolt lock