US1157523A - Safety locking device. - Google Patents

Safety locking device. Download PDF

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Publication number
US1157523A
US1157523A US2174615A US1157523A US 1157523 A US1157523 A US 1157523A US 2174615 A US2174615 A US 2174615A US 1157523 A US1157523 A US 1157523A
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US
United States
Prior art keywords
pawl
lever
rod
locking device
safety locking
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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Inventor
William John Fowler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
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Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to US2174615 priority Critical patent/US1157523A/en
Application granted granted Critical
Publication of US1157523A publication Critical patent/US1157523A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
    • B60R25/01—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens
    • B60R25/08—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens operating on brakes or brake systems
    • B60R25/086—Locking of hand-actuated control actuating means
    • 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
    • Y10T70/00—Locks
    • Y10T70/50—Special application
    • Y10T70/5611—For control and machine elements
    • Y10T70/5642—Rod
    • 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
    • Y10T70/00—Locks
    • Y10T70/50—Special application
    • Y10T70/5611—For control and machine elements
    • Y10T70/569—Lever
    • Y10T70/5695—Guide
    • Y10T70/5699—Quadrant
    • Y10T70/5704—Lever-carried lock

Definitions

  • This invention relates to an improved safety locking device for the emergency brake levers of an automobile.
  • the invention has for its object to produce a simple and improved automatic device whereby when the emergency brake lever is set to exert the maximum amount of resistance, it will be looked in such position and be incapable of being released except by the use of a special key provided for the purpose.
  • a further object of the invention is to simplify and improve the construction and arrangement of parts whereby the emergency'lever will be locked in set position, as abOX'G indicated.
  • Figure 1 is a side elevation, partly in section, of an emergency lever to which the invention has been applied.
  • Fig. 2 is a sectional'view taken on the line 22 in Fig. 1.
  • Fig.- 3 is a vertical sectional view of the handle portion of the lever.
  • the emergency lever 15 which is fulcrumed at 16 is provided at its lower end with a pawl 17 adapted, to engage a ratchet segment 18 which is mounted on a support 19 which also supports the bracket 20 on which the lever 15 is fulcrumed.
  • a rod 21 Specification of Letters Patent.
  • the rod 21 which is pivotally connected with the pawl 17, at 23, is actuated in an upward direction by a spring 2 1, thus maintaining the pawl normally in engagement with the teeth of the ratchet bar.
  • the handle 25 at the upper end of the lever 15 is provided with a socket 26 through which the upper end of the rod 21 extends, the handle 25 being preferably offset from the body of the lever, as seen at -27, so as to place the socket 26 in alinement with the rod.
  • the upper end of the rod 21 which ex- The notches or interspaces between the teeth 35 of the ratchet bar 18 are all of ap proximately equal depth, except the last or final notch 36 of the series, which is not engaged by the pawl 17 until the lever is set to its maximum extent.
  • the partsof the device are so arranged and proportioned that when the pawl 17 engages any of the notches or interspaces between the teeth 35 except the final notch 36, the annular groove 30 in the enlarged portion of the rod 21 will be positioned below the locking bolt or pin 31' so as to be incapable of being engaged.
  • the last or final notch 36 is of such a depth that when the pawl 17 engages the same, the spring 24 will force the rod 21 upwardly to such an extent that the annular groove 30 will be placed in registry with the pin or bolt 31 and be engaged thereby.
  • the rod will thus be held with perfeet security against downward movement until the bolt 31 is retracted by the key provided for the purpose, and the emergency lever will thus be securely locked until released by a person provided with a proper key for the purpose.
  • An emergency brake lever having a pawl, and a segmental ratchet bar engaged by said pawl, said bar having at one end amotch of materially greater depth than the remETim ing notches 0r interspaces between the teeththereof, a spring actuated rod for actuating the pawl, and a detent arranged to engage said red when the pawl engages'the notch of special depth, suc'h engagementproducing a movement of the red of greater extent tlmnghen the pawl engages any on. ef the reniuinl ngnotches. k

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lock And Its Accessories (AREA)

Description

W. 1. FOWLER. SAFETY LOCKINGDEVICE. APPLICATION FILED APR| I6, 1915.
wmw Patented 0ct.19,1915.
y sate arnriar "when WILLIAM JOHN FOWLER, OF PHILADELPHIA, PENNSYLVANIA.
SAFETY LOCKING DEVICE.
Application filed April 16, 1915.
To all whom it may concern:
Be it known that 1, WILLIAM JOHN FOWLER, a subject of the King of Great Britain, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented new and useful Improvements in Safety Locking Devices, of which the following is a specification.
This invention relates to an improved safety locking device for the emergency brake levers of an automobile.
The invention has for its object to produce a simple and improved automatic device whereby when the emergency brake lever is set to exert the maximum amount of resistance, it will be looked in such position and be incapable of being released except by the use of a special key provided for the purpose.
A further object of the invention is to simplify and improve the construction and arrangement of parts whereby the emergency'lever will be locked in set position, as abOX'G indicated.
With these and other ends in view which will readily appear as the nature of the invention is better understood, the same con sists in the improved construction and novel arrangement and combination of parts which will be hereinafter fully described and particularly pointed out in the claim.
In the accompanying drawing has been illustrated a simple and preferred form of the inventiomit being, however, understood that no limitation is necessarily made to the precise structural details therein exhibited, but that changes, alterations and.
modifications within the scope of the claim may be resorted to when desired. In the drawing, Figure 1 is a side elevation, partly in section, of an emergency lever to which the invention has been applied. Fig. 2 is a sectional'view taken on the line 22 in Fig. 1. Fig.- 3 is a vertical sectional view of the handle portion of the lever.
Corresponding parts in the several figures are denoted by like characters of reference.
The emergency lever 15 which is fulcrumed at 16 is provided at its lower end with a pawl 17 adapted, to engage a ratchet segment 18 which is mounted on a support 19 which also supports the bracket 20 on which the lever 15 is fulcrumed. For the purpose of actuating the pawl 17 a rod 21 Specification of Letters Patent.
Patented eat. in, 1915.
Serial No. 21,746.
22 wherein the rod is guided. The rod 21, which is pivotally connected with the pawl 17, at 23, is actuated in an upward direction by a spring 2 1, thus maintaining the pawl normally in engagement with the teeth of the ratchet bar. r
The handle 25 at the upper end of the lever 15 is provided with a socket 26 through which the upper end of the rod 21 extends, the handle 25 being preferably offset from the body of the lever, as seen at -27, so as to place the socket 26 in alinement with the rod. The upper end of the rod 21 which ex- The notches or interspaces between the teeth 35 of the ratchet bar 18 are all of ap proximately equal depth, except the last or final notch 36 of the series, which is not engaged by the pawl 17 until the lever is set to its maximum extent. The partsof the device are so arranged and proportioned that when the pawl 17 engages any of the notches or interspaces between the teeth 35 except the final notch 36, the annular groove 30 in the enlarged portion of the rod 21 will be positioned below the locking bolt or pin 31' so as to be incapable of being engaged.
thereby. The last or final notch 36, however, is of such a depth that when the pawl 17 engages the same, the spring 24 will force the rod 21 upwardly to such an extent that the annular groove 30 will be placed in registry with the pin or bolt 31 and be engaged thereby. The rod will thus be held with perfeet security against downward movement until the bolt 31 is retracted by the key provided for the purpose, and the emergency lever will thus be securely locked until released by a person provided with a proper key for the purpose.
Having thus described the invention, what is claimed as new, is
An emergency brake lever having a pawl, and a segmental ratchet bar engaged by said pawl, said bar having at one end amotch of materially greater depth than the remETim ing notches 0r interspaces between the teeththereof, a spring actuated rod for actuating the pawl, and a detent arranged to engage said red when the pawl engages'the notch of special depth, suc'h engagementproducing a movement of the red of greater extent tlmnghen the pawl engages any on. ef the reniuinl ngnotches. k
]n testimony whereof I in presence of :1 witness.
\VILLIAM J ()IIN FOWLER. VVit-ness:
HELEN G. DALEY.
afiix my signature 10
US2174615 1915-04-16 1915-04-16 Safety locking device. Expired - Lifetime US1157523A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US2174615 US1157523A (en) 1915-04-16 1915-04-16 Safety locking device.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US2174615 US1157523A (en) 1915-04-16 1915-04-16 Safety locking device.

Publications (1)

Publication Number Publication Date
US1157523A true US1157523A (en) 1915-10-19

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Family Applications (1)

Application Number Title Priority Date Filing Date
US2174615 Expired - Lifetime US1157523A (en) 1915-04-16 1915-04-16 Safety locking device.

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US (1) US1157523A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0397588A1 (en) * 1989-04-13 1990-11-14 Behrooz Shahir Homayoun Anti-robbery lock for a vehicle handbrake

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0397588A1 (en) * 1989-04-13 1990-11-14 Behrooz Shahir Homayoun Anti-robbery lock for a vehicle handbrake

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