US416059A - Wagon-bed raiser - Google Patents

Wagon-bed raiser Download PDF

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Publication number
US416059A
US416059A US416059DA US416059A US 416059 A US416059 A US 416059A US 416059D A US416059D A US 416059DA US 416059 A US416059 A US 416059A
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United States
Prior art keywords
pawl
disk
wagon
windlass
collar
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Expired - Lifetime
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B29/00—Gripping, clamping, or holding devices for the trunk or log in saw mills or sawing machines; Travelling trunk or log carriages
    • B27B29/08—Trunk or log carriages with gripping means designed to pass the saw blade(s), especially for band saws; Arrangement of gripping accessories thereon; Turning devices thereon
    • B27B29/10—Assemblies for laterally adjusting or controlling the clamping or turning devices with respect to the thickness of the board to be sawn
    • 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
    • Y10T74/1565—Gripper releasing devices
    • Y10T74/1566—Power pawl lifter
    • 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 improvements in wagon-bed raisers; and it consists in certain novel features hereinafter described and claimed.
  • Figure 1 is a perspective view of an apparatus embodying my invention.
  • Fig. 2 is a vertical transverse section
  • Fig. 3 is a detail longitudinal section.
  • Fig. 4 is a detail in side elevation of the gravity-pawl.
  • a frame A consisting of the side bars B B and the end bars 0 0,,which is secured to any suitable fixed support.
  • This frame A is provided at its ends with the pulleys or rollers D D, over which the hoisting-rope passes, and on the upper side of the side bars I secure the journal-boxes E E, in which the ends of the windlass-shaft are mounted.
  • the wind lass F is formed integral with its shaft or secured rigidly thereto, and is provided at one end with the ratchet-disk G, as clearly shown.
  • a pawl I Adjacent to this ratchet-disk G, I loosely mount on the windlass-shaft the operatinglever H, and on the operating-lever H is pivoted a pawl I, which engages the said ratchetdisk G.
  • This pawl is normally thrown into engagement with the said ratchet-disk by the spring J, arranged between the said pawl and a fixed stop on the lever, and the pawl is disengaged from the ratchet-disk by an anglelever K, pivoted on the operating-lever near its outer end and connected with the pawl by a rod L, as shown.
  • the windlass-shaft is provided near its end with the notched disk or collar M, rigid upon the shaft, and said collar is engaged by a gravity-pawl N, pivoted on the frame and having a shoulder O, which is adapted to engage the notches of the said collar or disk.
  • This gravity-pawl prevents backward movement of the windlass after the body has been raised, and, in order that it may be disengaged from the collar or disk, when so desired, I provide a but-ton P,which is somewhat stiffiy pivoted on the side of the pawl and adapted to be turned so as to throw it above or below the shoulder O.
  • lVhen thrown above the shoulder which is, in fact, its normal position, this shoulder meshes with the notched collar, and when thrown below the button rides over the faces of the teeth of the collar and elevates the shoulder out of contact.
  • the hoisting-ropes Q are secured to the windlass and pass therefrom over the rollers or pulleys D, and are adapted to pass around the ends of the wagon-body R and beneath the same.
  • the ends of the hoisting-ropes are passed under the ends of the wagonbody, the operating-lever is then reciprocated so as to rotate the windlass and thereby wind the ropes thereon, and consequently raise the body.
  • the button P is turned downward below the shoulder, as shown in Fig. 3, so as to rest upon a tooth of the disk lWI. It only now remains to intermittingly withdraw the pawl I from mesh with the ratchet-wheel G and permit the same to turn a few teeth at a time.

Description

J. A. HUGHLETT. WAGON BED KAISER.
(No Model.)
Patented N0 UrTE'D STATES JOE A. HUGHLETT, OF FULTON, KENTUCKY.
WAGON-BED RAISER.
SPECIFICATION forming part of Letters Patent No. 416,059, dated November 26, 1889.
Application filed May 25, 1889. Serial No. 312,022. (No model.)
To all whom it may concern: Be it known that I, J OE A. HUGHLETT, citizen of the United States, residing at Fulton, in the county of Fulton and State of Kentucky, have invented a new and useful lVagon-Bed Raiser, of which the following is a specification.
My invention relates to improvements in wagon-bed raisers; and it consists in certain novel features hereinafter described and claimed.
In the accompanying drawings, Figure 1 is a perspective view of an apparatus embodying my invention. Fig. 2 is a vertical transverse section, and Fig. 3 is a detail longitudinal section. Fig. 4 is a detail in side elevation of the gravity-pawl.
In carrying out my invention I employ a frame A, consisting of the side bars B B and the end bars 0 0,,which is secured to any suitable fixed support. This frame A is provided at its ends with the pulleys or rollers D D, over which the hoisting-rope passes, and on the upper side of the side bars I secure the journal-boxes E E, in which the ends of the windlass-shaft are mounted. The wind lass F is formed integral with its shaft or secured rigidly thereto, and is provided at one end with the ratchet-disk G, as clearly shown. Adjacent to this ratchet-disk G, I loosely mount on the windlass-shaft the operatinglever H, and on the operating-lever H is pivoted a pawl I, which engages the said ratchetdisk G. This pawl is normally thrown into engagement with the said ratchet-disk by the spring J, arranged between the said pawl and a fixed stop on the lever, and the pawl is disengaged from the ratchet-disk by an anglelever K, pivoted on the operating-lever near its outer end and connected with the pawl by a rod L, as shown.
The windlass-shaft is provided near its end with the notched disk or collar M, rigid upon the shaft, and said collar is engaged by a gravity-pawl N, pivoted on the frame and having a shoulder O, which is adapted to engage the notches of the said collar or disk. This gravity-pawl prevents backward movement of the windlass after the body has been raised, and, in order that it may be disengaged from the collar or disk, when so desired, I provide a but-ton P,which is somewhat stiffiy pivoted on the side of the pawl and adapted to be turned so as to throw it above or below the shoulder O. lVhen thrown above the shoulder 0, which is, in fact, its normal position, this shoulder meshes with the notched collar, and when thrown below the button rides over the faces of the teeth of the collar and elevates the shoulder out of contact.
The hoisting-ropes Q are secured to the windlass and pass therefrom over the rollers or pulleys D, and are adapted to pass around the ends of the wagon-body R and beneath the same. When it is desired to raise a wagon-body, the ends of the hoisting-ropes are passed under the ends of the wagonbody, the operating-lever is then reciprocated so as to rotate the windlass and thereby wind the ropes thereon, and consequently raise the body.
My device is very cheap and simple and its advantages are thought to be obvious.
WVhen it is desired to lower the wagonbody, the button P is turned downward below the shoulder, as shown in Fig. 3, so as to rest upon a tooth of the disk lWI. It only now remains to intermittingly withdraw the pawl I from mesh with the ratchet-wheel G and permit the same to turn a few teeth at a time.
Having thus described my invention, What I claim, and desire to secure by Letters Patent, 1s
1. The combination of the frame, the windlass mounted thereon, the ratchet-disk, the operating-lever loosely mounted on the windlass-shaft adjacent to the said disk, a pawl pivoted on said lever and engaging said disk, the notched collar or disk rigidly secured on the windlass-shaft, the gravity-pawl pivoted on the frame and having ashoulder engaging said notched disk or collar, and the button pivotally mounted on said gravity-pawl, as set forth.
2. The combination of the frame, the windlass mounted thereon, the ratchet-disk upon the windlass-shaft, the operating-lever pivoted on the shaft, a pawl mounted on the le- In testimony thatIcla-imthe foregoing as my ver and engaging the ratchet, means for dis own I have hereto affixed my signatnrein presengaging the pawl, a notched collar mounted ence of two witnesses.
on the shaft, a gravity holding-pawl piv- JOE A. HUGHLETT. oted to the frame and engaging the collar, In presence off and means for elevating the pawl from (3011- '1. M. HUGHLETT,
tact With the collar, substantially as specified. T. B. SELLARs.
US416059D Wagon-bed raiser Expired - Lifetime US416059A (en)

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