US508671A - Automatic safety-stop for engines - Google Patents

Automatic safety-stop for engines Download PDF

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Publication number
US508671A
US508671A US508671DA US508671A US 508671 A US508671 A US 508671A US 508671D A US508671D A US 508671DA US 508671 A US508671 A US 508671A
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Prior art keywords
disk
stop
engine
engines
automatic safety
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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
    • G05G17/00—Mechanical devices for moving a member after being released; Trip or release mechanisms characterised thereby
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
    • H01H3/3031—Means for locking the spring in a charged state
    • 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
    • Y10T74/11—Tripping mechanism

Definitions

  • Fig. 4 is a central vertical section through the two disks and through a coil spring connecting them.
  • Fig. 5 is a perspectiveview of the disk designed to be connected with the governor of an engine, and
  • Fig. 6 is a horizontal section of the disk intended to be connected with the trippingdevice of the engine showing a latorally extending flange having a cam and tooth and showing a sliding pin for engagingsaid cam and tooth.
  • This invention relates to certain improvements in an automatic safety stop for steam engines, and designed to be located between the governor and the tripping device of a four valve cylinder, and connected in I such manner that the governor will operate to cut off steam to the cylinder entirely, in
  • D and K are a pair of disks journaled on shaft S, supportedin the frame F.
  • the two disks are connected with each other by means of a coil spring N located in an annular recess in disk D, the outer end of said spring being connected to disk D, near its periphery, and its inner end" being connected to the hub of disk K.
  • the disk K is intended to be connected with-a governor through the medium of rod A, pivotally connected to said disk at H, and disk D is intended to be connected with the tripping device of a four valve cylinder by means of the rods B.
  • E is a pawl pivotally connected to disk K
  • the disk D is provided with tooth G'for engaging a stop V on frame F, for limiting the oscillation of .said disk.
  • Said disk D is also provided on its lower outerside with a laterally extending tooth -W, and a cam T, shown in Figs. 3 and 6, said tooth being for the purpose of engaging the inner end of the sliding pin P to prevent pawl E from coming in contact with stop R,when the governor is at rest.
  • the disk D will rotate and by means of the cam T force pin P, out, so that the mechanism is free to act in case of accident.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)

Description

(No Model.)
JLBATES. AUTOMATIC SAFETY STOP FORENGINES.
No. 508,671. Patented Nov. 14,1893.
27 TM n? x/vflruesslaa 'z: v dlzjft we NAn'o nnnnnnnnnnnnnnnnnnnnnnn I ,NITED STATES ALBERT J. BATES, OF JOLIET, ILLINOIS.
AUTOMATIC SAFETY- STOP FOR ENGINES.
SPECIFICATION forming part of LettersPatent No. 508,671, dated November 14, 1893.
Application filed May 12,1893.
the diskdesigned to be connected with the inlet valves of an engine through the medium of rods pivoted to said disk. Fig. 4 is a central vertical section through the two disks and through a coil spring connecting them. Fig. 5 is a perspectiveview of the disk designed to be connected with the governor of an engine, and Fig. 6 is a horizontal section of the disk intended to be connected with the trippingdevice of the engine showing a latorally extending flange having a cam and tooth and showing a sliding pin for engagingsaid cam and tooth.
This invention relates to certain improvements in an automatic safety stop for steam engines, and designed to be located between the governor and the tripping device of a four valve cylinder, and connected in I such manner that the governor will operate to cut off steam to the cylinder entirely, in
case of accident.
Referring to the drawings, D and K, are a pair of disks journaled on shaft S, supportedin the frame F. The two disks are connected with each other by means of a coil spring N located in an annular recess in disk D, the outer end of said spring being connected to disk D, near its periphery, and its inner end" being connected to the hub of disk K. The disk K is intended to be connected with-a governor through the medium of rod A, pivotally connected to said disk at H, and disk D is intended to be connected with the tripping device of a four valve cylinder by means of the rods B.
E is a pawl pivotally connected to disk K,
at its point of pivot with rod A, at H, and is are No. 474,016. (No model.)
intended to engage a tooth O on the periphery of disk'D to oscillate said disk when the rod A descends and be disengaged therefrom by means of its outwardly projecting end engaging a stop R, beneath it, when rod A descends far enough. The disk D is provided with tooth G'for engaging a stop V on frame F, for limiting the oscillation of .said disk.
Said disk D is also provided on its lower outerside with a laterally extending tooth -W, and a cam T, shown in Figs. 3 and 6, said tooth being for the purpose of engaging the inner end of the sliding pin P to prevent pawl E from coming in contact with stop R,when the governor is at rest. When the engine is started and the governor rod A descends, the disk D will rotate and by means of the cam T force pin P, out, so that the mechanism is free to act in case of accident.
When the device is in operation and the engine is in motion the parts are in the position shown in Fig. l'as stated, the pawl E engaging tooth O on disk D. In case the governor should stop on account'of any accident to the belt or otherwise, the rod A, will descend and bring the projecting arm of pawl E against the stop R, and thereby cause said pawl to be disengaged from tooth O on disk D, which allows disk D to be rotated by means of the coil springN to such point as will restore rods B, to the position of the earliest point of cut off, or will prevent the Valves from opening, thereby stopping the engine. When stoppin g the engine, the engineer pushes in pin P, which comes in contact with tooth W on disk D, and prevents such a rotation as would cause tripping. When the engine is started again the disk D rotates and by means of cam T, forces pin P out so that the mechanism is means for respectively connecting said disks with the tripping device and governor of a, steam engine all arranged to operate snbstam tially as and for' the purpose set forth.
2. In an automatic stop for steam engines, the combination of a disk carrying a'pawl' and connected with the governor of the engine, a disk connected'witll'. the trippingode vice of the engine, a coil spring between said
US508671D Automatic safety-stop for engines Expired - Lifetime US508671A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2674900A (en) * 1949-10-12 1954-04-13 Republic Aviat Corp Release or disconnect for power units

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2674900A (en) * 1949-10-12 1954-04-13 Republic Aviat Corp Release or disconnect for power units

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