US194926A - Improvement in brake-levers - Google Patents

Improvement in brake-levers Download PDF

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Publication number
US194926A
US194926A US194926DA US194926A US 194926 A US194926 A US 194926A US 194926D A US194926D A US 194926DA US 194926 A US194926 A US 194926A
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Prior art keywords
brake
levers
ratchet
lever
improvement
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Expired - Lifetime
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    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G5/00—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member
    • G05G5/12—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member for holding members in an indefinite number of positions, e.g. by a toothed quadrant
    • G05G5/14—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member for holding members in an indefinite number of positions, e.g. by a toothed quadrant by locking a member with respect to a fixed quadrant, rod, or the like
    • G05G5/18—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member for holding members in an indefinite number of positions, e.g. by a toothed quadrant by locking a member with respect to a fixed quadrant, rod, or the like by positive interengagement, e.g. by a pawl
    • 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
    • Y10T74/20—Control lever and linkage systems
    • Y10T74/20576—Elements
    • Y10T74/20636—Detents
    • Y10T74/20672—Lever engaging rack
    • Y10T74/2069—Handle release

Definitions

  • Figure 1 of the drawings is a representation of a plan view of my brake-lever, and Figs. 2,
  • my invention consists in the construction and arrangement of a device for operating wagon-brakes, as will be hereinafter more fully set forth.
  • A represents the side of a wagon box or body, to which the segment B is attached by means of screws or pins a a at the corners.
  • ratchet-teeth 12 along the inner circumference of the segment B are formed ratchet-teeth 12, substantially as shown.
  • the lever for applying the brake is made in two parts, 0 and O, the lower part, 0, being pivoted by the lower screw or pin of the ratchet-segment, and extending up between it and the wagon-body A.
  • the upper part, 0, of the lever is pivoted to the lower part, 0, and when standing on a line therewith rests against a projectinglug or shoulder, d, on said lower part 0.
  • a pawl, D which, by means ofa spring, 6, is thrown into gear with the ratchet b, arranged on the under side of the segment B.
  • the lower end of the upper part 0 of the lever is provided with a cam or cam-arm, h, which, when said part is thrown forward, releases the pawl t'rom the ratchet-segment and releases the brake.
  • a cam or cam-arm, h which, when said part is thrown forward, releases the pawl t'rom the ratchet-segment and releases the brake.

Description

UNITED STATES PATENT QFFICE.
WILLIAM F. OSBORN, 0F BURLINGTON, KANsAs.
lMPROVEMENT IN BRAKE-LEVERS.
Specification forming part of Letters Patent N 0. 194,926, dated September 4, 1877; application filed July 28, 1877.
To all whom it may concern:
Be it known that I, WILLIAM F. OSBORN, of Burlington, in the county of Coffey and State of Kansas, have invented a new and valuable Improvement in Brake-Levers; and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawings, making a part of this specification, and to the letters and figures of reference marked thereon.
Figure 1 of the drawings is a representation of a plan view of my brake-lever, and Figs. 2,
3, 4, 5, and 6 are details thereof.
The nature of my invention consists in the construction and arrangement of a device for operating wagon-brakes, as will be hereinafter more fully set forth.
The annexed drawing, to which reference is made, fully illustrates my invention.
A represents the side of a wagon box or body, to which the segment B is attached by means of screws or pins a a at the corners. Along the inner circumference of the segment B are formed ratchet-teeth 12, substantially as shown.
The lever for applying the brake is made in two parts, 0 and O, the lower part, 0, being pivoted by the lower screw or pin of the ratchet-segment, and extending up between it and the wagon-body A. The upper part, 0, of the lever is pivoted to the lower part, 0, and when standing on a line therewith rests against a projectinglug or shoulder, d, on said lower part 0. To this lower part (J is pivoted a pawl, D, which, by means ofa spring, 6, is thrown into gear with the ratchet b, arranged on the under side of the segment B.
The lower end of the upper part 0 of the lever is provided with a cam or cam-arm, h, which, when said part is thrown forward, releases the pawl t'rom the ratchet-segment and releases the brake. As soon as the forward pressure of the part 0 of the lever is removed the spring 6 at once throws the pawl D into the ratchet, again holding the same in place.
I am aware that a curved ratchet-bar and a lever with an engaging-pawl have heretofore been used; and I therefore lay no broad claim to such invention; but
What I claim as new, and desire to secure by Letters Patent, is-
In a wagon-brake, the combination, with the segment B, having ratchet-teeth on the under side, of the single-jointed lever O C, the upper part, C, of which is provided with a cam, h, and the lower part, 0, having attached thereto a pivoted paw], D, and spring 6, all constructed and operated as described.
In testimony that I claim the above I have hereunto subscribed my name in the presence of two witnesses.
WILLIAM FAIRGHILD OSBORN.
Witnesses:
B. F. SMYTHE, EBEB. 0. SMITH.
US194926D Improvement in brake-levers Expired - Lifetime US194926A (en)

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